Surgical support tube, surgical safety tube, surgical safety tube kit, and fistulization device

Abstract

A surgical support tube, a surgical safety tube, a surgical safety tube kit and a fistulization device, comprising: a support tube (10) having a guide channel (101), a first end portion (11) of the support tube (10) having a guide inlet (102) and a second end portion (12) having a guide outlet (103), the guide inlet (102) and the guide outlet (103) being respectively communicated with the guide channel (101), the supporting pipeline (10) has a normal state and an expanded state, in the normal state, the supporting pipeline (10) has a first outer diameter (R1), in the expanded state, the supporting pipeline (10) has a second outer diameter (R2), the first outer diameter (R1) is smaller than the second outer diameter (R2), and the supporting pipeline (10) absorbs liquid in the normal state and is converted into the expanded state. The supporting pipeline (10) absorbs liquid after being placed in a human body operation channel and is converted into an expanded state from a normal state; the fixing piece (20) is connected to the first end portion (11) of the supporting pipeline (10), and the fixing piece (20) is provided with a fixing face (201) so that the fixing piece (20) can be fixed to the surface of the human body conveniently.

Description

Surgical support tube, surgical safety tube, surgical safety tube kit and fistula device Technical Field

[0001] The present invention relates to the field of medical equipment and supplies, and further relates to a surgical support tube, a surgical safety tube, a surgical safety tube kit and a fistula device. Background Art

[0002] During kidney surgery, doctors typically construct a surgical channel in the human body to perform the procedure through it. After the surgery, a guide tube is used for drainage. After the guide tube is removed, if the amount of bleeding at the wound site of the surgical channel is small, the doctor will place hemostatic gauze or the like to stop the bleeding. After a period of time, if the wound site continues to bleed or the surgical effect is not good, a second kidney surgery is required. The doctor will then need to reinsert the relevant equipment through the wound site, which may have healed or partially healed, to re-establish the surgical channel. This is painful for the patient, and constructing the surgical channel twice increases the risk of further trauma to the patient.

[0003] Currently, to address the issue of postoperative bleeding after kidney surgery, doctors typically place hemostatic gauze at the site of the wound after surgery to stop the bleeding. This gauze obscures the wound site on the human surgical channel, making it difficult for doctors to assess the patient's condition by observing the wound. Furthermore, the gauze easily falls off, preventing doctors from effectively observing the color of the blood flowing out and effectively understanding the healing status of the surgical site. Furthermore, the hemostatic gauze can usually only be placed on the outside of the wound and cannot directly contact the bleeding site, resulting in poor hemostatic effects. Furthermore, the hemostatic gauze easily falls off during actual use, resulting in a lack of guaranteed hemostasis. After the patient's wound has healed for a period of time, if it is found that the healing is poor and a second surgery is required, the relevant instruments must usually be re-inserted from the wound site, which has been preset to a certain depth, causing significant pain to the patient.

[0004] As a drainage tube used after surgery, nephrostomy tubes play an important role in the human body during surgery or recovery from surgery. Mainly through puncture or incision of the renal parenchyma, part of the catheter is inserted into the renal pelvis, and the other part is outside the skin, thereby draining urine, pus, and blood to the outside of the body, helping patients recover as soon as possible. Specifically, nephrostomy is suitable for symptoms of ureteral obstruction, pyonephrosis, and late-stage bladder cancer that cause ureteral obstruction. For example, after kidney stone surgery or renal tumor surgery, through nephrostomy, a nephrostomy tube is placed in the nephrostomy channel for a predetermined time to assist drainage, so as to achieve the purpose of draining the renal pelvis, improving renal function, and reducing renal pelvis and renal parenchyma infection. Specifically, during nephrostomy surgery, the nephrostomy tube is connected to a fistula bag on the patient's body, and the urine, pus, and blood in the patient's body are drained into the fistula bag through the nephrostomy tube.

[0005] Current fistula tubes are generally hollow tubes made of medical rubber. The front end of the tube is provided with a through hole to guide the liquid in the renal pelvis into the fistula tube and drain it to the outside. An air bag can also be arranged at the front end of the tube to play a role in fixing and compressing hemostasis. For example, in percutaneous nephrolithotomy, the fistula tube plays a drainage role on the one hand, and on the other hand, since there will be bleeding during or after the operation, the fistula tube can play a role in compressing hemostasis. Percutaneous nephrolithotomy is to establish a channel from the skin to the kidney at the waist, insert the nephroscope into the kidney through this channel, and use laser, ultrasound and other lithotripsy tools to crush and remove the kidney stones. After the operation, the renal fistula tube is removed in a timely manner according to the clinical recovery situation. After extubation, if the amount of bleeding is small, the doctor will place hemostatic gauze at the wound site to stop the bleeding. However, this has two disadvantages. First, the gauze is easy to fall off and cannot completely stop the bleeding. Second, extubation is painful for the patient, which makes the wound site exposed again and needs to heal again. Third, after a period of time, it may be found that the situation is not good and a second operation is required. At this time, the relevant instruments need to be reinserted from the wound site that may have healed to re-construct the surgical channel, which is even more painful for the patient.

[0006] Percutaneous nephrolithotomy is just an example to illustrate the disadvantages of extubation and construction of a secondary surgical channel for patients. Other renal surgeries also have the problem of extubation and construction of a secondary surgical channel. The kidney is an organ with very rich blood vessels, and renal blood flow accounts for a quarter of the blood output by the heart. Therefore, there is an urgent need to solve the problems of drainage, extubation and construction of a secondary surgical channel.

[0007] Summary of the Invention

[0008] One advantage of the present invention is that it provides a surgical support tube, wherein the surgical support tube can provide a guide channel in the human body's surgical channel, which not only makes it convenient for doctors to observe the patient's condition through the guide channel, but also makes it convenient to perform a secondary operation through the guide channel, thereby reducing the patient's pain and lowering the risk of further trauma to the patient's body.

[0009] One advantage of the present invention is that it provides a surgical support tube, wherein the surgical support tube can provide the guide channel for a period of time, wherein the outer tube can expand so that the outer wall of the expanded outer tube is in close contact with the inner wall of the human body's surgical channel, achieving a compression and hemostasis effect, and the inner tube does not need to expand to avoid obstructing a guide element from passing through the guide channel due to reducing the inner diameter of the guide channel.

[0010] One advantage of the present invention is that it provides a surgical support tube, wherein the surgical support tube can expand so that the outer wall of the expanded support tube is in close contact with the inner wall of the human surgical channel, thereby blocking the capillaries on the inner wall of the human surgical channel and achieving the effect of compression and hemostasis.

[0011] An advantage of the present invention is that it provides a support tube for surgery, wherein the outer wall of the support tube for surgery includes a hemostatic material to achieve a hemostatic effect.

[0012] One advantage of the present invention is that it provides a surgical support tube, wherein the surgical support tube includes a degradable material and gradually degrades within the human surgical channel to facilitate wound healing for the patient. The surgical support tube includes an outer tube and an inner tube, and the outer tube and the inner tube are arranged in layers. Both the outer tube and the inner tube are made of degradable material, and the inner tube forms the guide channel so that the outer tube degrades first and the inner tube degrades later, thereby increasing the duration for which the guide channel is maintained.

[0013] One advantage of the present invention is that it provides a support tube for surgery, wherein a barrier layer can be provided between the outer tube and the inner tube to extend the degradation time of the inner tube and further increase the maintenance time of the guide channel.

[0014] One advantage of the present invention is that it provides a support tube for surgery, wherein the outer tube is made of a degradable material and the inner tube is made of a non-degradable material, so that the outer tube gradually degrades over a period of time to assist the patient in healing the wound. At the same time, the inner tube is non-degradable to maintain the guide channel, making it convenient to observe the patient's condition through the guide channel or perform a secondary operation, etc.

[0015] One advantage of the present invention is that it provides a support tube for surgery, wherein the support tube for surgery can be fixed to the surface of the human body to avoid falling off.

[0016] One advantage of the present invention is that it provides a support tube for surgery, wherein the support tube for surgery can avoid the situation where the portion of the support tube close to the outside of the human body is completely degraded first while the portion close to the inside of the human body is not completely degraded, resulting in the incompletely degraded portion of the support tube inside the human body causing damage to the internal organs of the human body due to the patient's movements.

[0017] One advantage of the present invention is that it provides a surgical support tube, wherein the surgical support tube is capable of closing or opening the guide inlet of the guide channel, so as to prevent the outflow of liquids such as blood or prevent infection of the patient due to exposure of the guide inlet after closing the guide inlet, or to observe the patient's condition or perform a secondary operation through the guide channel after opening the guide inlet.

[0018] One advantage of the present invention is to provide a surgical support tube, wherein the surgical support tube is provided with a plurality of drainage grooves to reduce the occurrence of blockage.

[0019] One advantage of the present invention is that it provides a surgical support tube, wherein the surgical support tube has a curved end when placed in the human body and has no sharp points or protruding parts, thereby reducing adverse stimulation to organs in the human body.

[0020] An advantage of the present invention is to provide a surgical support tube, wherein the guide channel of the surgical support tube is suitable for passing through a guide element, so that the surgical support tube can be inserted into a surgical channel of a human body through the guide element.

[0021] One advantage of the present invention is that it provides a surgical safety tube and a surgical safety tube kit, which are suitable for extending into the patient's body along a fistula tract of a patient, and the bleeding in the patient's body can be discharged through its observation channel. After contacting the blood in the fistula tract, it converts to an expanded state, increases in volume, and contacts the bleeding in the fistula tract to achieve the purpose of rapid hemostasis.

[0022] One advantage of the present invention is that it provides a surgical safety tube and a surgical safety tube kit, the internal part of which is made of degradable material. As the patient's fistula heals, it does not need to be pulled out, which helps the patient's fistula heal.

[0023] One advantage of the present invention is that it provides a surgical safety tube and a surgical safety tube kit, the internal part of which includes an inner core and an outer shell, and the outer shell is made of a degradable material. As the patient's fistula heals, the diameter of the surgical safety tube becomes smaller, and when it is pulled out, the contact area between the tube and the patient's fistula can be reduced, thereby reducing the resistance during removal.

[0024] One advantage of the present invention is that it provides a surgical safety tube and a surgical safety tube kit, wherein the head section of the internal part of the safety tube is naturally curved, which helps to ensure the stability of the safety tube when installed in the patient's body.

[0025] One advantage of the present invention is to provide a surgical safety tube and a surgical safety tube kit, which further include an extracorporeal portion adapted to be fixed outside the patient's body to fix the intracorporeal portion of the safety tube.

[0026] One advantage of the present invention is that it provides an ostomy device, including a drainage tube and an ostomy bag, wherein the ostomy bag is detachably connected to the drainage tube without the need for other additional connecting elements, is simple to operate, and helps reduce the workload of medical staff and save time.

[0027] One advantage of the present invention is that it provides a fistula device, wherein the drainage tube is made of degradable material, the part of the drainage tube located in the body automatically degrades, and the part outside the body automatically falls off or is cut off, which reduces the pain of tube removal and is beneficial to the patient's recovery.

[0028] One advantage of the present invention is that it provides a fistula device, wherein the drainage tube includes a stabilizing section, which is connected to the inner tube. When the outer tube degrades, the stabilizing section can still fix the inner tube, and a secondary surgical channel and drainage can be constructed through the inner tube, solving the problem of constructing a secondary surgical channel at the healed wound site after tube removal, alleviating the patient's pain, and saving surgical time and costs.

[0029] One advantage of the present invention is that it provides a fistula device, wherein the degradable drainage tube includes an outer tube and an inner tube, and the outer tube and the inner tube are suitable for integral molding or layered manufacturing, and can be made of the same material or different materials.

[0030] One advantage of the present invention is that it provides a fistula device, wherein the drainage tube includes a stabilizing section, which is arranged on the outer tube, which can prevent the drainage tube from slipping out of the body and can also degrade on its own. The degradation products are non-toxic and can be absorbed or metabolized by the human body.

[0031] One advantage of the present invention is that it provides a fistula device. When drainage is not needed, the fistula bag is removed and the drainage tube is left in the human body. This can stop bleeding and enable medical staff to observe the internal situation through the fluid at the outlet of the drainage tube. At the same time, it is sealed by a sealing unit to prevent foreign matter from entering. When drainage is needed again, the sealing unit is removed and the fistula bag is connected. The operation is simple and easy to use.

[0032] One advantage of the present invention is that it provides a fistula device, wherein the drainage tube is fixed to the surface of the human body in an adhesive manner, which is both firm and reduces the discomfort of the human body.

[0033] In order to achieve at least one of the above advantages, one aspect of the present invention provides a surgical support tube, comprising:

[0034] a support pipe having a guide channel, a guide inlet at a first end of the support pipe, and a guide outlet at a second end, the guide inlet and the guide outlet respectively communicating with the guide channel, the support pipe having a normal state and an expanded state, wherein the support pipe has a first outer diameter in the normal state and a second outer diameter in the expanded state, the first outer diameter being smaller than the second outer diameter, the support pipe absorbing liquid in the normal state and transforming into the expanded state, so that the support pipe can absorb liquid and transform from the normal state to the expanded state after being placed in a surgical channel of a human body; and

[0035] A fixing member is connected to the first end portion of the supporting pipe, and the fixing member has a fixing surface for being fixed to the surface of the human body.

[0036] According to an embodiment of the support tube for surgery, the support tube comprises a degradable material, so that the support tube can be placed in a surgical channel of a human body while the guide channel remains for a period of time.

[0037] According to the support tube for surgery according to one embodiment, the wall thickness of the support tube decreases from the first end portion to the second end portion.

[0038] According to an embodiment of the support tube for surgery, the support tube includes an inner tube and an outer tube, the outer tube and the inner tube are arranged in layers, the inner tube forms the guide channel, and both the inner tube and the outer tube are made of degradable materials.

[0039] According to the support tube for surgery according to one embodiment, the support tube further includes a barrier layer, and the barrier layer is disposed between the outer tube and the inner tube.

[0040] According to an embodiment of the support tube for surgery, the support tube includes an inner tube and an outer tube, the outer tube is located outside the inner tube, the inner tube forms the guide channel, the outer tube is made of a degradable material, and the inner tube is made of a non-degradable material.

[0041] According to an embodiment of the support tube for surgery, the support tube includes an inner tube and an outer tube, the outer tube is located outside the inner tube, the inner tube forms the guide channel, and the outer tube has the normal state and the expanded state.

[0042] According to an embodiment of the support tube for surgery, an outer wall of the support tube comprises a hemostatic material.

[0043] According to the surgical support tube according to one embodiment, an adhesive material is provided on the fixing surface.

[0044] According to a surgical support tube described in one embodiment, the fixing part includes a fixing portion and a closing portion, the fixing portion is integrally connected to the support pipe, the fixing portion has a through hole, the through hole is connected to the guide inlet of the guide channel, the closing portion is arranged on the fixing portion in a manner that can close the through hole, and the fixing portion has the fixing surface.

[0045] According to the support tube for surgery in one embodiment, the closing portion has a column, and the column is installed in the through hole of the fixing portion by interference fit.

[0046] According to the surgical support tube according to one embodiment, the fixing member further includes a connecting portion, and the connecting portion is movably connected between the fixing portion and the closing portion.

[0047] According to the support tube for surgery in one embodiment, the sealing portion is threadedly mounted on the fixing portion.

[0048] According to a surgical support tube according to one embodiment, the fixing member includes a fixing portion and a closing portion, the fixing portion has a through hole, the first end portion of the support pipe passes through the through hole of the fixing portion, the closing portion is arranged on the fixing portion in a manner that can close the guide inlet, and the fixing portion has the fixing surface.

[0049] According to an embodiment of a surgical support tube, the fixing member includes a fixing portion and a connecting portion, the connecting portion is movably and integrally connected between the first end portion of the support pipe and the fixing portion, the fixing member has an open state and a closed state, in the open state, the guide inlet of the support pipe is connected to the outside world, in the closed state, the fixing portion closes the guide inlet, and the fixing portion has the fixing surface so that the fixing surface is fixed to the surface of the human body in the closed state.

[0050] According to one embodiment of the surgical support tube, the fixing portion has a groove, the size of the groove is larger than the size of the first end portion of the support tube, and the groove and the fixing surface are located on the same side, so that when the fixing surface is fixed to the human body surface, the opening of the groove is closed by the human body surface to form a closed cavity, so that the first end portion of the support tube is enclosed in the closed cavity.

[0051] According to a surgical support tube according to one embodiment, the second end portion of the support tube has a natural state and a guided state. In the natural state, the second end portion is bent, and in the guided state, the second end portion is roughly straightened, so that a guiding element can pass through the guide channel to guide the second end portion from the natural state to the guided state, thereby facilitating its insertion into the human body's surgical channel.

[0052] According to the support tube for surgery in one embodiment, the second end has at least one drainage port, the drainage port is connected to the external space, and the drainage port is connected to the guide channel to form a drainage channel.

[0053] In order to achieve at least one of the above advantages, one aspect of the present invention further provides a surgical support tube, comprising:

[0054] a support pipe having a guide channel, a guide inlet at a first end of the support pipe, and a guide outlet at a second end, the guide inlet and the guide outlet respectively communicating with the guide channel, the support pipe comprising a degradable material to facilitate placement of the support pipe in a human surgical channel while retaining the guide channel for a period of time; and

[0055] A fixing member is connected to the first end portion of the supporting pipe, and the fixing member has a fixing surface for being fixed to the surface of the human body.

[0056] The present invention provides a safety tube for surgery, comprising:

[0057] an internal portion having a head section, a middle section, and a tail section, the head section and the tail section being located at opposite ends of the middle section, respectively, and the internal portion further comprising an observation channel connecting the head section, the middle section, and the tail section; the head section being adapted to penetrate into a patient's body along a fistula tract, and fluid in the patient's body being able to be discharged along the observation channel;

[0058] The internal part has a contracted state and an expanded state, and can be transformed from the contracted state to the expanded state after the internal part comes into contact with the liquid in the fistula.

[0059] Preferably, the internal part includes an inner core and an outer shell, the inner core surrounds the observation channel, and the outer shell is wrapped around the outside of the inner core. After the outer shell comes into contact with the liquid in the fistula, the internal part is transformed from the contracted state to the expanded state.

[0060] Preferably, the housing comprises a hemostatic sponge.

[0061] Preferably, the shell is made of a degradable material and has a plurality of pores. Blood in the fistula can enter the pores in the shell, causing the shell to expand and the internal part to switch from the contracted state to the expanded state.

[0062] Preferably, the inner core is made of degradable material.

[0063] Preferably, the inner core has a plurality of pores, and blood in the fistula tract can enter the pores in the inner core to cause the inner core to swell, and the porosity of the inner core is lower than that of the outer shell.

[0064] Preferably, the head section of the intracorporeal portion has a natural state and a guided state, in which the head section is bent and in which the head section is substantially straight.

[0065] Preferably, the head section includes a head section pipe, and the end of the head section pipe away from the tail section has a distal opening connected to the observation channel; the side wall of the head section pipe also has a plurality of side openings connected to the observation channel.

[0066] Preferably, the side wall of the head section has a plurality of drainage grooves;

[0067] The middle section has a middle channel; the tail section has a tail channel;

[0068] Several of the gravitational grooves are respectively connected to the middle channel, and the middle channel is also connected to the tail channel. Several of the gravitational grooves, the middle channel and the tail channel are connected to form the observation channel.

[0069] Preferably, the head section includes an intermediate guide tube and a plurality of guide plates, one end of each of the guide plates is connected to the intermediate guide tube, and the other end extends away from the intermediate guide tube, and the guide groove is formed between adjacent guide plates.

[0070] Preferably, the middle guide tube has a guide channel, which is communicated with the middle channel for a guide wire to pass through.

[0071] Preferably, the head section further comprises a plurality of protective plates, wherein the protective plates are mounted on an end of the guide plate away from the intermediate guide tube, and a gap is provided between adjacent protective plates, wherein the gap is connected to the guide groove.

[0072] Preferably, the safety tube for surgery further comprises an external portion connected to the tail section, and the external portion is suitable for being fixed outside the patient's body.

[0073] Preferably, the external portion includes a fixing plate, which is suitable for being connected to the tail section. The fixing plate is also suitable for being fixedly installed outside the patient's body to fix the tail section.

[0074] Preferably, the fixing plate includes a connecting portion and an adhesive portion, the adhesive portion is suitable for being attached to the outside of the patient's body, and the connecting portion is integrally connected to the tail section;

[0075] The tail section has a tail opening communicating with the observation channel;

[0076] The external portion further comprises a sealing plug adapted to be installed in the observation channel through the tail opening.

[0077] Preferably, the external part further comprises a connecting strip, one end of which is connected to the fixing plate, and the other end of which is connected to the sealing plug.

[0078] Preferably, the fixing sheet includes an adhesive portion and a sealing portion, wherein the adhesive portion is suitable for being attached to the patient's body; the external portion further includes a sealing plug provided on the sealing portion;

[0079] The tail section has a tail opening communicating with the observation channel;

[0080] The sealing plug is adapted to be installed in the observation channel through the tail opening.

[0081] Preferably, the external part further includes a connecting strip, one end of which is connected to the tail section, and the other end of which is connected to the fixing plate.

[0082] Preferably, the fixing sheet includes an adhesive portion and a sealing portion, wherein the adhesive portion is suitable for being attached to the patient's body; and the sealing portion has a sealing mask;

[0083] The tail section has a tail opening communicating with the observation channel;

[0084] The sealing cover is suitable for covering the outer side of the tail opening.

[0085] Preferably, the fixing sheet includes an adhesive portion and an avoidance portion, wherein the adhesive portion is suitable for being adhered to the outside of the patient's body; the avoidance portion has an avoidance opening;

[0086] The external portion further includes a first sleeve and a second sleeve, the first sleeve having a first sleeve channel, the second sleeve having a second sleeve channel, the first sleeve being connected to the avoidance portion, and the first sleeve channel communicating with the avoidance opening, the tail section being adapted to pass through the avoidance opening and enter the first sleeve channel;

[0087] The external part further includes a storage bag, which is mounted on the second sleeve and communicates with the second sleeve channel;

[0088] When the second sleeve is installed on the first sleeve, the tail section is communicated with the receiving bag, and the blood in the observation channel can flow into the receiving bag.

[0089] According to another aspect of the present invention, the present invention further provides a surgical safety tube kit, comprising:

[0090] A surgical safety tube comprises an internal portion and an external portion; the internal portion comprises a head section, a middle section, and a tail section, the head section and the tail section being located at either end of the middle section, respectively, and the internal portion further comprising an observation channel connecting the head section, the middle section, and the tail section; the head section is adapted to be inserted into a patient's body, allowing fluid in the patient's body to be discharged along the observation channel; the external portion is connected to the tail section and adapted to be fixed to the patient's body.

[0091] a guide wire adapted to be inserted into a fistula tract of the patient;

[0092] a sheath, adapted to be inserted into the fistula tract along the guide wire;

[0093] The safety tube for surgery is suitable for entering the sheath along the guide wire to enter the fistula tract. After the guide wire and the sheath leave the fistula tract, the safety tube for surgery remains in the fistula tract.

[0094] The present invention provides a fistula device comprising:

[0095] A drainage tube, wherein the drainage tube includes a drainage tube body and a fixing unit, the drainage tube body including a drainage tube front section and a drainage tube rear section connected to the drainage tube front section, the drainage tube body having a guide channel, at least one fluid channel and at least one fluid groove connected to the fluid channel, wherein the fluid groove is provided in the drainage tube front section, the guide channel and each fluid channel extend from the drainage tube rear section to the drainage tube front section, and the fixing unit includes a fixing body and a connecting body, the fixing body being connected to the drainage tube rear section and the connecting body; and

[0096] An ostomy bag comprises a containing unit, a connecting unit and a fluid inlet, wherein the fluid inlet is arranged on the containing unit, and the connecting unit is arranged on the containing unit at the fluid inlet, and the connecting unit is detachably connected to the connecting body, so that the ostomy bag and the drainage tube are detachably connected, so that the fluid drained from the drainage tube enters the containing unit through the fluid inlet.

[0097] According to one aspect of the present invention, the drainage tube body comprises an inner tube, an outer tube, and at least one reinforcing rib. The outer tube surrounds the inner tube and is connected to the inner tube via the reinforcing rib. Each fluid channel is located between the outer tube, the inner tube, and the reinforcing rib. The outer tube, the inner tube, and the reinforcing rib are manufactured in layers and then connected by hot pressing.

[0098] According to another aspect of the present invention, the drainage tube body includes an inner tube, an outer tube, and at least one reinforcing rib. The outer tube surrounds the inner tube and is connected to the inner tube via the reinforcing rib. Each fluid channel is provided in the outer tube at intervals. The outer tube, the inner tube, and the reinforcing rib are integrally formed.

[0099] According to another aspect of the present invention, the drainage tube body includes an inner tube and an outer tube, the outer tube is connected to the outer side of the inner tube, and the inner tube and the outer tube are integrally formed.

[0100] The drainage tube body further includes a stabilizing section, which is arranged at the connection between the front section and the rear section of the drainage tube. The stabilizing section has an inflation cavity and an inflation channel communicating with the inflation cavity.

[0101] According to one aspect of the present invention, the stabilizing section includes a stabilizing body, the peripheral edge of the stabilizing body is connected to the outer tube, the inflation cavity is located between the outer tube and the stabilizing body, and the inflation channel is provided in the outer tube.

[0102] According to another aspect of the present invention, the stabilizing section includes a stabilizing body, the bottom of the stabilizing body is connected to the outer tube, the inflation cavity is located inside the stabilizing body, and the inflation channel is provided in the outer tube.

[0103] According to another aspect of the present invention, the stabilizing section includes a stabilizing body connected to the inner tube, the inflation cavity is located between the inner tube and the stabilizing body, and the inflation channel is provided in the inner tube.

[0104] The outer tube, the inner tube and the stable body are all made of degradable materials.

[0105] The outer tube, the inner tube and the stable body are all made of degradable materials.

[0106] The drainage tube body also has at least one fluid outlet and one guide inlet, wherein each fluid outlet is connected to each fluid channel, and the guide inlet is connected to the guide channel, and each fluid outlet and the guide inlet are arranged at intervals at the terminal end of the rear section of the drainage tube.

[0107] The connecting body and the connecting unit are connected by channel thread connection, sleeve connection, snap connection or adhesion.

[0108] The fistula device further includes a sealing unit, which includes an extension body and a sealing body. The extension body is connected between the fixed body and the sealing body. The sealing body matches the end of the rear section of the drainage tube to seal the drainage tube body.

[0109] The fixed body has an adhesive surface, a fixed surface and a movable surface, wherein the movable surface and the fixed surface are respectively arranged on both sides of the adhesive surface, and the fixed surface is connected to the connecting body and the outer tube. After the movable surface is peeled off from the adhesive surface, the drainage tube can be fixed to the patient's body. BRIEF DESCRIPTION OF THE DRAWINGS

[0110] FIG1 is a perspective schematic diagram of a natural state of a surgical support tube according to an embodiment of the present invention.

[0111] FIG2 is a schematic cross-sectional view of a guide element passing through a support tube for surgery according to one embodiment of the present invention.

[0112] FIG3A is a schematic diagram of a guide element inserted into a surgical channel of a human body according to one embodiment of the present invention.

[0113] FIG3B is a schematic diagram of a guide tube being inserted into a surgical channel of a human body through a guide element according to an embodiment of the present invention.

[0114] FIG3C is a schematic diagram of a surgical support tube being inserted into a guide tube through a guide element according to an embodiment of the present invention.

[0115] 3D is a schematic diagram of the surgical support tube being inserted into a human surgical channel through a guide element after the guide tube is removed according to one embodiment of the present invention.

[0116] FIG3E is a schematic diagram of a surgical support tube being placed in a surgical channel of a human body after the guide element is removed according to one embodiment of the present invention.

[0117] FIG3F is a schematic diagram of a surgical support tube in a closed state according to one embodiment of the present invention.

[0118] FIG3G is a schematic diagram of a degraded surgical support tube according to an embodiment of the present invention.

[0119] FIG4A is a schematic diagram of a first inner diameter of a support tube of a surgical support tube in a normal state according to an embodiment of the present invention.

[0120] FIG4B is a schematic diagram of a second inner diameter of a support tube of a surgical support tube in an expanded state according to an embodiment of the present invention.

[0121] FIG4C is a schematic diagram illustrating a change in tube wall thickness of a support tube of a surgical support tube according to an embodiment of the present invention.

[0122] FIG5A is a schematic diagram of an outer tube and an inner tube of a support channel of a support tube for surgery according to one embodiment of the present invention.

[0123] FIG5B is a schematic diagram showing that the outer tube and the inner tube of the support conduit of the surgical support tube are provided with a barrier layer according to one embodiment of the present invention.

[0124] FIG6 is a schematic diagram of a fixing member of a surgical support tube according to a modified embodiment of the present invention.

[0125] FIG7A is a schematic diagram of a fixing member of a surgical support tube according to another modified embodiment of the present invention.

[0126] FIG7B is a schematic diagram of a fixing member of a surgical support tube according to another modified embodiment of the present invention.

[0127] FIG8 is a perspective schematic diagram of a natural state of a surgical support tube according to another embodiment of the present invention.

[0128] FIG9 is a schematic diagram of a surgical support tube placed in a human surgical channel according to another embodiment of the present invention.

[0129] FIG10 is a perspective view of a natural state of a surgical support tube according to another embodiment of the present invention.

[0130] FIG. 11 is a schematic cross-sectional view of a support tube for surgery according to another embodiment of the present invention.

[0131] FIG12 is a schematic perspective view of a natural state of a safety tube for surgery according to a preferred embodiment of the present invention;

[0132] 13 is a schematic diagram of a bent state of a safety tube for surgery according to a preferred embodiment of the present invention;

[0133] 14 is a schematic diagram comparing the contracted state and the expanded state of the surgical safety tube according to a preferred embodiment of the present invention;

[0134] FIG15 is a cross-sectional view of line AA in FIG12;

[0135] FIG16 is a cross-sectional view of line BB in FIG12;

[0136] 17, 18, 19, 20, 21 and 22 are schematic diagrams showing the state of the surgical safety tube during use according to a preferred embodiment of the present invention;

[0137] FIG23 is a perspective view of a third modified embodiment of the safety tube for surgery according to the preferred embodiment of the present invention;

[0138] FIG24 is a cross-sectional view of line DD in FIG23;

[0139] 25 is a perspective view of a thirty-fourth modified embodiment of a safety tube for surgery according to a preferred embodiment of the present invention;

[0140] 26 is a perspective view of a fifth modified embodiment of a safety tube for surgery according to a preferred embodiment of the present invention;

[0141] 27 and 28 are perspective views of a sixth modified embodiment of the safety tube for surgery according to the preferred embodiment of the present invention.

[0142] FIG29 is a schematic diagram of the three-dimensional structure of a fistula device according to a preferred embodiment of the present invention.

[0143] FIG30 is an exploded schematic diagram of the fistula device according to the preferred embodiment of the present invention.

[0144] 31 and 32 are partial cross-sectional views of the fistula device according to the preferred embodiment of the present invention.

[0145] FIG33 is a partial cross-sectional schematic diagram of a deformation of the fistula device according to the above preferred embodiment of the present invention.

[0146] Figure 34 is a cross-sectional schematic diagram of an embodiment of the drainage tube included in the fistula device according to the above preferred embodiment of the present invention.

[0147] FIG35 is a cross-sectional schematic diagram of another embodiment of the drainage tube according to the above preferred embodiment of the present invention.

[0148] FIG36 is a cross-sectional schematic diagram of another embodiment of the drainage tube according to the above preferred embodiment of the present invention.

[0149] Figure 37 is a schematic diagram of the three-dimensional structure of a fistula device according to another preferred embodiment of the present invention.

[0150] 38 and 39 are partial cross-sectional views of the fistula device according to the above preferred embodiment of the present invention.

[0151] Figure 40 is a partial cross-sectional schematic diagram of a deformation of the fistula device according to the above preferred embodiment of the present invention.

[0152] 41 to 43 are schematic diagrams of the three-dimensional structures of the drainage tube according to the above preferred embodiment of the present invention.

[0153] 44 and 45 are partial cross-sectional schematic views of two different connection modes of the drainage tube and the stabilizing section of the present invention. DETAILED DESCRIPTION

[0154] The following description is intended to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are for illustrative purposes only, and those skilled in the art will readily appreciate other obvious variations. The basic principles of the present invention defined in the following description may be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

[0155] Those skilled in the art should understand that, in the disclosure of the present invention, the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like to indicate orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms should not be understood as limiting the present invention.

[0156] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the elements may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0157] References to "one embodiment," "an embodiment," "example embodiment," "various embodiments," "some embodiments," etc., indicate that such embodiments describing the invention may include a particular feature, structure, or characteristic, but not every embodiment must include that feature, structure, or characteristic. Furthermore, some embodiments may have some, all, or none of the features described for other embodiments.

[0158] During kidney surgery, doctors usually construct a surgical channel at the location of the human kidney. The surgical channel extends from the body surface to the inside of the human kidney so that surgery can be performed through the surgical channel. After the surgery, the relevant instruments inserted into the surgical channel, such as guide tubes, are pulled out. Since the wound of the surgical channel will gradually heal, during a second surgery, the relevant instruments are reinserted from the wound that may have healed to re-construct the surgical channel. This is painful for the patient and there is a risk of further trauma to the patient's body.

[0159] Therefore, to avoid this situation, referring to Figures 1 and 2, a preferred embodiment of the present invention provides a surgical support tube 100. The surgical support tube 100 is used to be inserted into a surgical channel in the human body after surgery. The surgical support tube 100 provides a guide channel 101 that connects the human body with the outside world, allowing residual fluids such as blood or water to flow out through the guide channel to the outside world after surgery, allowing the doctor to observe the patient's condition through the fluid flowing out of the guide channel 101. Moreover, because the surgical support tube 100 provides the guide channel 101 within the human surgical channel, the guide channel 101 facilitates secondary surgery, avoiding the need to reinsert related instruments through a wound that may have already healed to re-establish the surgical channel, thereby reducing the patient's pain and the risk of further trauma to the patient. The surgical support tube 100 is suitable for, for example, but not limited to, renal surgery such as percutaneous nephrolithotomy. Since these surgeries create incisions in the human body, such as the kidneys, to construct surgical channels, there will inevitably be varying degrees of bleeding after the surgery, or there will be blood, blood clots, and other debris in the kidneys.

[0160] For example, referring to Figures 3A to 3F, taking kidney surgery as an example, the process or method of inserting the surgical support tube 100 into a human surgical channel may include: inserting a guide element 200 into the human surgical channel, inserting a guide tube 300 into the human surgical channel along the guide element (the guide element relatively passes through the internal channel of the guide tube), the inner diameter of the internal channel of the guide tube is larger than the outer diameter of the surgical support tube 100, inserting the surgical support tube 100 into the internal channel 301 of the guide tube 300 along the guide element (the guide element relatively passes through the guide channel 101 of the surgical support tube 100), removing the guide tube and the guide element 200, so that the surgical support tube 100 remains in the human surgical channel. It can be understood that the internal channel 301 of the guide tube 300 provides an escape space for the surgical support tube 100 to be inserted into the human surgical channel, thereby preventing the surgical support tube 100 from being obstructed during the insertion process. After the surgical support tube 100 is inserted into the internal channel of the guide tube, the doctor can remove the guide tube 300 and the guide element 200 from the outside and retain the surgical support tube 100 in the human surgical channel, so that the guide channel 101 provided by the surgical support tube 100 is convenient for reinserting the guide element, so as to facilitate the reconstruction of the surgical channel and perform a second operation, etc., and the residual blood or water in the human kidney can flow out along the guide channel 101 of the surgical support tube 100, which is conducive to the discharge of residual blood or water after surgery.

[0161] For another example, the guide tube, such as a sheath with an internal channel, has a certain hardness, so that it can be directly inserted into the human surgical channel along the guide element 200, and the guide tube can be separated into two parts along the axial direction to facilitate removal from the human surgical channel. The guide element 200 is exemplified by, but not limited to, a guide wire, an inner core, or a predetermined guide element 200 manufactured to match the surgical support tube 100 of the present invention. In other words, during actual manufacturing, the shape and size of the guide element 100 or the guide tube can be designed based on the size and shape of the surgical support tube 100. For example, if the requirements are consistent with the existing guide wire or inner core, the existing guide wire or inner core can be used for guidance. If they are inconsistent, a guide element 200 that matches the surgical support tube 100 needs to be separately manufactured.

[0162] For the sake of convenience, the direction of entering the human body is defined as the front, and the direction of being outside the human body is defined as the back.

[0163] Further, referring to Figures 1 and 2, the surgical support tube 100 includes a support pipe 10 and a fixing member 20. The support pipe 10 has the guide channel 101. The first end 11 (or rear end) of the support pipe 10 has a guide inlet 102, and the second end 12 (or front end) has a guide outlet 103. The guide inlet 102 and the guide outlet 103 are respectively connected to the guide channel 101. The fixing member 20 is connected to the first end 11 of the support pipe 10. The fixing member 20 has a fixing surface 201. The fixing surface 201 is suitable for fixing to the surface of the human body, so that the support pipe 10 is kept fixed by the fixing member 20 to prevent it from falling off. Preferably, the fixing surface 201 is provided with an adhesive material so as to be attached and fixed to the surface of the human body. The shape of the fixing surface 201 of the fixing part 20 is preferably a bandage shape, a nail head shape, etc. The fixing surface 201 has medical hemostatic material and is of a size suitable for covering the wound on the surface of the human body to avoid infection of the patient's wound, etc.

[0164] It is understandable that the guide outlet 103 can also be used to drain the liquid inside the human body into the guide channel 101, and flow out to the outside along the guide inlet 101 of the guide channel 101, so that the doctor can judge the patient's internal condition through the liquid flowing out of the guide inlet 101 of the guide channel 101. In some optional embodiments, the second end 12 of the support pipe 10 can be provided with at least one drainage outlet 104, and the drainage outlet 104 is connected to the guide channel 101 to form a drainage channel, so that the liquid inside the human body can be drained into the guide channel 101 through the drainage outlet 104, and flow out to the outside along the guide inlet 101 of the guide channel 101. Optionally, the drainage outlet 104 can be opened on the side wall of the second end 12, at a certain distance from the guide outlet 103, so that the guide outlet 103 and the drainage outlet 104 cooperate with each other to achieve a better drainage effect.

[0165] That is, after the surgical support tube 100 is inserted into the surgical channel, the first end 11 of the support tube 10 is located outside the body, allowing the guide inlet 102 to communicate with the outside world. The second end 12 of the support tube 10 is located inside the body, allowing the guide outlet 103 to communicate with the inside of the body. Therefore, the guide element 200 can be inserted into the guide channel 101 of the support tube 10 from the guide inlet 102 and pass through the guide outlet 103 into the body. The surgeon can then remove the surgical support tube 100 from the surgical channel, while retaining the guide element 200 within the channel to facilitate insertion of related devices for secondary surgery, such as through the guide element 200. Furthermore, the support tube 10 of the surgical support tube 100 is secured within the surgical channel by the fixing member 20, preventing the support tube 10 from falling out due to patient movements (such as walking or turning over), thereby widening the wound in the surgical channel, or becoming trapped within the channel, thereby providing safety.

[0166] Preferably, as shown in Figures 4A and 4B , the support tube 10 has a normal state and an expanded state. In the normal state, the support tube 10 has a first outer diameter R1, and in the expanded state, the support tube 10 has a second outer diameter R2. The first outer diameter R1 is smaller than the second outer diameter R2. The support tube 10 absorbs liquid in the normal state and transitions to the expanded state, so that the support tube 10 can absorb liquid and transition from the normal state to the expanded state after being placed in a surgical channel of a human body. As shown in Figure 4A , X is the axis of the support tube 10, D1 is the wall thickness of the support tube 10 in the normal state, and R1 is the first outer diameter of the support tube 10 in the normal state. As shown in Figure 4B , D2 is the wall thickness of the support tube 10 in the expanded state, and R2 is the second outer diameter of the support tube 10 in the expanded state. D1 < D2, and R1 < R2. That is to say, the support tube 10 is inserted into the human surgical channel in the normal state. Since there is residual blood, water or other liquid in the human surgical channel, the support tube 10 absorbs the liquid and expands (changes from the normal state to the expanded state), so that the outer wall of the expanded support tube 10 fits tightly with the inner wall of the human surgical channel to block the capillaries on the inner wall of the human surgical channel, thereby achieving the effect of compression and hemostasis.

[0167] It can be understood that, in a normal state, the first outer diameter R1 of the support pipe 10 can be slightly smaller than the inner diameter of the human surgical channel, so that the support pipe 10 can be smoothly inserted into the human surgical channel in the normal state; in the expanded state, the second outer diameter R2 of the support pipe 10 can be slightly larger than the inner diameter of the human surgical channel, so that the support pipe 10 can slightly press the inner wall of the human surgical channel in the expanded state, and will not expand excessively to avoid causing damage to the patient or expanding the wound range of the human surgical channel.

[0168] It should be pointed out that the surgical support tube 100 can include a variety of different specifications or models, and the first outer diameter or the second outer diameter of the support pipe 10 of the surgical support tube 100 of different trajectories or models is different in size or size to adapt to human surgical channels with different inner diameters, so that doctors can select surgical support tubes 100 of appropriate specifications according to human surgical channels with different inner diameters.

[0169] Preferably, the support tube 10 of the surgical support tube 100 can comprise an expandable material or structure, allowing the support tube 10 to expand by absorbing liquid. It should be noted that the outer wall shape of the support tube 10 before and after expansion can remain substantially cylindrical or elliptical, with a smooth outer wall surface without significant protrusions, to avoid uneven pressure on the surgical corridor and facilitate removal of the support tube 10 from the surgical corridor.

[0170] Furthermore, the outer wall of the support pipe 10 of the surgical support tube 100 includes a hemostatic material, so that after the support pipe 10 is placed in a human surgical channel, the hemostatic material contacts the inner wall of the human surgical channel to achieve a hemostatic effect.

[0171] In some embodiments, the support tube 10 of the surgical support tube 100 comprises a degradable material, such as a medical material that degrades in the human body, so that the support tube 10 gradually degrades within the human surgical channel over a period of time, thereby preserving the guide channel 101 for a period of time. For example, the support tube 10 or the portion of the support tube 10 placed within the human surgical channel is made of a degradable material. That is, after the support tube 10 of the surgical support tube 100 is placed within the human surgical channel, the doctor can observe the patient's internal conditions through the guide channel 101 of the support tube 10. If a second surgery is required, the guide element 200 is passed through the guide channel 101 of the support tube 10 that has not degraded or has not completely degraded to facilitate the reconstruction of the surgical channel. If a second surgery is not required, the portion of the support tube 10 placed within the human surgical channel gradually degrades over time, as shown in FIG3G . After degradation is complete, the portion of the support tube 10 located outside the human body can automatically fall off or be manually cut off.

[0172] It can be understood that the degradation time of the support tube 10 of the surgical support tube 100 can be adjusted according to the wall thickness of the support tube 10. Since the support tube 10 of the surgical support tube 100 gradually degrades after contacting the inner wall of the human surgical channel, the outer diameter of the wall of the support tube 10 gradually decreases, reducing the pressure on the inner wall of the human surgical channel, so as to facilitate the patient to heal the wound of the human surgical channel.

[0173] It is worth mentioning that, as shown in Figure 4C, the wall thickness of the support tube 10 decreases from the first end 11 to the second end 12, that is, the wall thickness D3 near the first end 11 is greater than the wall thickness D4 near the second end 12, so that after the support tube 10 is placed in the human surgical channel, the time it takes for the part of the support tube 10 near the inside of the human body to be completely degraded is shorter than the time it takes for the part of the support tube 10 near the outside of the human body to be completely degraded, so as to avoid the part of the support tube 10 near the outside of the human body being completely degraded first while the part of the support tube 10 near the inside of the human body has not yet been completely degraded, resulting in the incompletely degraded part of the support tube 10 inside the human body causing damage to the internal organs of the human body due to the patient's movements.

[0174] In some optional embodiments, as shown in FIG5A , the support tube 10 of the surgical support tube 100 includes an outer tube 13 and an inner tube 14, the outer tube 13 and the inner tube 14 being arranged in layers, both being made of a degradable material, the inner tube 14 forming the guide channel 101. Since the outer tube 13 is located outside the inner tube 14, the outer tube 13 degrades first and the inner tube 14 degrades later, thereby increasing the duration of the guide channel 101. Alternatively, the outer tube 13 may be sleeved outside the inner tube 14, the inner diameter of the inner channel of the outer tube 13 being slightly larger than or equal to the outer diameter of the inner tube 13, the inner channel of the inner tube 13 serving as the guide channel 101. In other words, the outer tube 13 and the inner tube 14 of the support tube 10 form a double-tube structure. It will be appreciated by those skilled in the art that the support tube 10 may also have a three-tube structure, a four-tube structure, or a multi-layered structure. Optionally, the outer tube 13 may be integrally formed on the outer side of the inner tube 14 , and the structures or densities of the outer tube 13 and the inner tube 14 may be partially different.

[0175] Furthermore, as shown in Figure 5B, the support tube 10 also includes a barrier layer 15, which is disposed between the outer tube 13 and the inner tube 14 to prolong the degradation time of the inner tube 14 and further ensure the longevity of the guide channel 101. Optionally, a barrier cavity 151 is formed between the outer tube 13 and the inner tube 14. The inner wall of the outer tube 13, the outer wall of the inner tube 14, and the barrier cavity 151 form the barrier layer 15. Furthermore, the barrier layer 15 includes a barrier material 152, which is filled between the outer tube 13 and the inner tube 14, that is, the barrier material 152 is filled in the barrier cavity 151. Preferably, the barrier material 152 is a degradable medical material. Therefore, the presence of the barrier layer 151 can further hinder the degradation time of the inner tube 14, thereby extending the existence of the guide channel 101.

[0176] In some modified embodiments, the outer tube 13 is made of a degradable material, and the inner tube 14 is made of a non-degradable material, such that the outer tube 13 gradually degrades over a period of time to assist the patient's wound healing, while the inner tube 14 remains non-degradable to maintain the guide channel 101, facilitating observation of the patient's condition or performing a secondary surgery through the guide channel 101. In other words, after the support tube 10 of the surgical support tube 100 is placed within a human surgical channel, the outer tube 13 of the support tube 10 gradually degrades over a period of time, reducing the outer diameter of the support tube 10 to assist the patient's wound healing, while the inner tube 14 remains within the human surgical channel to provide the guide channel 101 (not subject to degradation time constraints). If a secondary surgery is not required, the doctor can remove the non-degradable inner tube 14 from the human surgical channel.

[0177] Optionally, the outer tube 13 comprises an expandable material or structure, allowing the outer tube 13 to have both a normal state and an expanded state. That is, the outer tube 13 can expand, allowing the outer wall of the expanded outer tube 13 to closely contact the inner wall of the surgical channel in the human body, thereby achieving a compression and hemostasis effect. Optionally, the inner tube 14 does not need to expand, so as to avoid reducing the inner diameter of the guide channel 101 and thereby hindering the guide element 200 from passing through the guide channel 101.

[0178] Preferably, as shown in Figures 1 and 2, the fixing member 20 includes a fixing portion 21 and a closing portion 22. The fixing portion 21 is integrally connected to the first end portion 11 of the support pipe 10. The fixing portion 21 has a fixing surface 201 for fixing to the surface of the human body. The fixing portion 21 has a through hole 202, which is connected to the guide inlet 102. The closing portion 22 is provided on the fixing portion 21 in a manner that can close the through hole 202. In other words, the closing portion 22 can be operated to open or close the through hole 202, thereby opening or closing the guide inlet 102 of the guide channel 101.

[0179] It can be understood that the first end portion 11 of the support pipe 10 is substantially flush with the surface of the fixing surface 201 , so as to avoid inconvenience to the patient's movement due to protrusion from the human body surface.

[0180] It is worth mentioning that the wall thickness of the inner tube 14 can remain consistent, and the wall thickness of the outer tube 13 can gradually decrease from the first end 11 to the second end 12. The wall thickness of the inner tube 14 and the outer tube 14 is not limited.

[0181] Optionally, the outer tube 13 and the inner tube 14 are both made of degradable materials, and the outer tube 13 and the inner tube 14 are integrally connected to the fixing portion 21, or the inner tube 14 is integrally connected to the fixing portion 21. After the support pipe 10 of the surgical support tube 100 is placed in a human surgical channel, as the portion of the outer tube 13 and the portion of the inner tube 14 located in the human surgical channel gradually degrade, the fixing part 20 and (if any) the undegraded portion of the outer tube 13 and the portion of the inner tube 14 are finally present outside the human body, so that the doctor or patient can remove the degraded surgical support tube 100 from the body surface.

[0182] Optionally, if the outer tube 13 is made of a degradable material and the inner tube 14 is made of a non-degradable material, the outer tube 13 and the inner tube 14 are integrally connected to the fixing portion 21, or the inner tube 14 is integrally connected to the fixing portion 21. After the support pipe 10 of the surgical support tube 100 is placed in the human surgical channel, as the portion of the outer tube 13 located in the human surgical channel gradually degrades, the fixing part 20 and the inner tube 14 connected to the fixing part 20 and (if any) the undegraded portion of the outer tube 13 will eventually remain.

[0183] That is, the fixing member 20 has an open state and a closed state. In the open state, the guide inlet 102 of the guide channel 101 is connected to the outside world through the through hole 202, allowing a doctor to observe the patient's condition through the guide channel 101, or insert the guide element 200 into the guide channel 101 through the through hole 202 to facilitate secondary surgery. In the closed state, the sealing portion 22 seals the through hole 202, thereby sealing the guide inlet 102 of the guide channel 101, preventing fluids such as blood from flowing out of the guide inlet 102 of the guide channel 101, and preventing infection to the patient due to the exposed guide inlet 102.

[0184] Furthermore, the sealing portion 22 has a column 221, which is installed in the through hole 202 of the fixing portion 21 with an interference fit. In other words, the column 221 is adapted to the through hole 202, and the outer diameter of the column 221 is slightly larger than the inner diameter of the through hole 202, so that the column 221 can be detachably installed in the through hole 202 of the fixing portion 21 with an interference fit. In addition, the column 221 can also seal the through hole 202 to prevent the liquid in the guide channel 101 from flowing out or the outside air from entering the guide channel 101, which may cause infection.

[0185] Furthermore, the fixing member 20 further includes a connecting portion 23, which is movably and integrally connected between the fixing portion 21 and the closing portion 22 to prevent the closing portion 22 from being lost. The connecting portion 23 has a certain degree of toughness, so that the connecting portion 23 is operated to bend, thereby switching the fixing member 20 between the open state and the closed state.

[0186] Optionally, the closing portion 22 is screwed to the fixing portion 21. Specifically, the fixing portion 21 has a first thread, and the closing portion 22 has a second thread, and the first thread and the second thread are screwed together. The first thread is formed on the inner wall of the through hole 202, and the second thread is formed on the outer wall of the column 221, so that the column 221 is detachably screwed into the through hole 202 of the fixing portion 21.

[0187] In some modified embodiments, as shown in FIG6 , the fixing portion 21 may include a first coupling portion 211, and the closing portion 22 may include a second coupling portion 222. The first coupling portion 211 and the second coupling portion 222 are detachably coupled together, allowing the fixing member 20 to switch between the open state and the closed state. It is understood that the coupling method between the first coupling portion 211 and the second coupling portion 222 includes, but is not limited to, threaded connection, magnetic connection, adhesive connection, or clamping connection, and is not limited here.

[0188] In some optional embodiments, the first end portion 11 of the support pipe 10 passes through the through hole 202 of the fixing portion 21, and the closing portion 22 is provided on the fixing portion 21 in a manner capable of closing the guide inlet 102. That is, in the open state, the guide channel 101 communicates with the outside through the guide inlet 102, and in the closed state, the closing portion 22 closes the guide inlet 102. It is understood that the first end portion 11 of the support pipe 10 can be integrally connected to the inner wall of the through hole 202 of the fixing portion 21, or the first end portion 11 of the support pipe 10 can be detachably passed through the through hole 202 of the fixing portion 21, and the outer diameter of the first end portion 11 is slightly smaller than the inner diameter of the through hole 202. Optionally, the closing portion 22 may have a closing groove, and the closing portion 22 is detachably mounted on the fixing portion 21. In the closed state, the closing portion 22 is mounted on the fixing portion 21, and the closing groove and the fixing portion 21 form a chamber, so that the first end portion 11 of the support pipe 10 is closed in the chamber, thereby closing the guide inlet 102 of the guide channel 101. In the open state, the closing portion 22 is removed, and the first end portion 11 of the support pipe 10 is exposed to the outside world, so that the guide inlet 102 of the guide channel 101 is connected to the outside world, so that the doctor can observe the patient's condition through the guide inlet 102 of the guide channel 101, or insert the guide element 200 into the guide channel 101 from the guide inlet 102 to facilitate secondary surgery, etc.

[0189] In some optional embodiments, as shown in FIG7A , the fixing member 20 includes a fixing portion 21A and a connecting portion 23A. The connecting portion 23A is movably and integrally connected between the first end portion 11 of the support pipe 10 and the fixing portion 21A. The fixing portion 21A has a fixing surface 201. Specifically, the fixing member 20 has an open state and a closed state. In the closed state, the fixing surface 201 of the fixing portion 21A is fixed to the human body surface, and the fixing portion 21A seals the guide inlet 102. In the open state, the fixing portion 21A is removed from the human body surface, and the guide inlet 102 of the guide channel 101 is connected to the outside world. The connecting portion 23A has a certain degree of toughness and is operable to bend, allowing the fixing member 20 to switch between the open and closed states, thereby facilitating a doctor or patient to operate the fixing member 21 to close or open the guide inlet 102 of the guide channel 101. Furthermore, the fixing member 20 also includes a closing portion 22A, which is integrally connected to the fixing portion 21A. The closing portion 22A is located on the fixing surface 201 of the fixing portion 21A and protrudes from the fixing surface 201 to form a protruding structure (such as a column, etc.). The closing portion 22A is adapted to detachably close the guide inlet 102 of the support pipe 10.

[0190] Optionally, as shown in Figure 7B, the fixing portion 21A has a groove portion 212A, and the groove portion 212A forms a groove. The size of the groove is larger than the size of the first end portion 11 of the support pipe 10, and the groove and the fixing surface 201 are located on the same side, so that when the fixing surface 201 is fixed to the human body surface, the opening of the groove is closed by the human body surface to form a closed cavity, so that the first end portion 11 of the support pipe 10 is closed in the closed cavity, so that the guide inlet 102 of the guide channel 101 is closed.

[0191] The second end portion 12 (or front end portion) of the support tube 10 of the surgical support tube 100 has a natural state and a guided state. In the natural state, the second end portion 12 of the support tube 10 of the surgical support tube 100 is curved. In the guided state, the second end portion 12 of the support tube 10 of the surgical support tube 100 is adapted to straighten under the guidance of the guide element 200. That is, during use, the support tube 10 of the surgical support tube 100 can be straightened under the guidance of the guide element 200 for insertion into a human surgical channel. After insertion into the human surgical channel, the guide element 200 is removed, and the second end portion 12 of the support tube 10 of the surgical support tube 100 returns to the natural state and becomes curved. In other words, the second end portion 12 of the support tube 10 of the surgical support tube 100 is elastically bent, and this bending is responsive to the morphological requirements of a human organ (such as a kidney) during use. There are no sharp or protruding portions, thereby reducing adverse stimulation to internal organs.

[0192] It is worth mentioning that the length of the support tube inserted into the human kidney will affect the user's experience. If it is too long, it will cause adverse irritation reactions such as kidney damage to the patient. If it is too short or too close to the outside of the human body, it will not be conducive to guiding the residual blood or water and other liquids inside the human kidney to flow out, or it will not be conducive to inserting the guiding element into the ideal position. On the other hand, the support tube 10 of the surgical support tube 100 is provided with an air bag. Since the functions of the air bag are to fix the support tube and to compress and stop bleeding, the air bag cannot be too far away from the kidney. Therefore, the surgical support tube 100 of the present invention is in its natural state, that is, when it is located in the human kidney, the second end 12 of the support tube 10 of the surgical support tube 100 is naturally bent, so the irritation of the end to the inside of the human kidney can be reduced, which is conducive to relatively reducing the requirements for the operation level of medical staff in placing the support tube.

[0193] As shown in Figures 8 and 9, the support tube 10 of the surgical support tube 100 includes a drainage section 110, an airbag section 120, and a delivery section 130. The drainage section 110 is located in front of the airbag section 120, and the delivery section 130 is located behind the airbag section 120. In other words, during use, the drainage section 110 is the portion that first enters the human body, and the delivery section 130 is the portion closest to the outside of the human body.

[0194] Regarding the relative positional relationship between the support tube 10 of the surgical support tube 100 and the human organ when in use, the drainage section 110 is configured to be positioned within the kidney for drainage, the balloon section 120 is configured to be positioned at the location of the surgical incision in the kidney to substantially secure the surgical support tube 100, and the delivery section 130 is configured to be positioned within the surgical passage between the kidney and the human skin and to connect to the fixing member 20. In other words, during use, the drainage tube and balloon section 120 are positioned within the kidney, while the delivery section 130 is positioned within the surgical passage between the kidney and the human skin and extends outside the human body.

[0195] In terms of the functions of the various sections of the surgical support tube 100, the drainage section 110 is used to guide liquid into the support conduit 10 of the surgical support tube 100, or in other words, the drainage section 110 is used to guide residual blood, water, or other liquids within the human kidney outward. The balloon section 120 is used to secure the support conduit 10 of the surgical support tube 100, or in other words, the balloon section 120 is used to secure the surgical support tube 100 at the location of the surgical incision in the human kidney. The delivery section 130 is used to transport liquid from the support conduit 10 of the surgical support tube 100 outward. In other words, the delivery section 130 extends along the surgical channel to the fixing member 20 outside the human body and transports liquid to the outside along the guide inlet 102.

[0196] In one embodiment of the present invention, the drainage section 110, the airbag section 120, and the delivery section 130 are integrally connected. For example, but not limited to, during manufacture, the surgical support tube 100 is formed one or more times using a mold, blow molding, injection molding, or other methods, thereby forming the drainage section 110, the airbag section 120, and the delivery section 130 one or more times. In another embodiment of the present invention, the drainage section 110, the airbag section 120, and the delivery section 130 are detachably connected.

[0197] The drainage section 110, the airbag section 120 and the conveying section 130 are substantially flexibly and linearly connected. The drainage section 110, the airbag section 120 and the conveying section 130 are arranged sequentially from inside to outside, or from top to bottom.

[0198] In the natural state, the drainage section 110 is curved, and in the guided state, the drainage section 110 is straightened under the guidance of the guide element 200. In other words, the straightening or bending of the drainage section 110 is controlled by the action of the guide element 200. In the natural state, the drainage section 110 is curved inward, and in the guided state, the drainage section 110 is substantially straight.

[0199] In one embodiment of the present invention, the surgical support tube 100 includes a membrane layer that covers the guide inlet 102 (e.g., an external port) of the guide channel 101. In other words, the guide inlet 102 of the guide channel 101 is not connected to the outside. During use, the user can penetrate the membrane layer or leave it in place as needed.

[0200] As shown in Figures 10 and 11, the support tube 10 of the surgical support tube 100 includes an inflation port 140 and an inflation conduit 150. The inflation port 140 is connected to the inflation conduit 150, and the inflation conduit 150 extends along the delivery section 130 and is connected to the airbag section 120. The airbag section 120 has an inflation cavity 121, and the inflation conduit 150 is connected to the inflation cavity 121, so that air can be inflated into the inflation cavity 121 through the inflation port 140 and the inflation conduit 150. That is, the airbag section 120 is formed into an inflated airbag by inflation.

[0201] It is worth mentioning that the front end portion 1501 of the inflation pipe 150 passes through the fixing portion 21 and is integrally connected to the fixing portion 21. In other words, the front end portion 1501 of the inflation pipe 150 is fixed by the fixing portion 21 to ensure safety. It is understood that the inflation port 140 can be operated to close or open the inflation pipe 150.

[0202] In one embodiment of the present invention, the inflation conduit 150 is integrally formed from the inner wall of the support conduit 10 of the surgical support tube 100. That is, the tube body forming the inflation conduit 150 is integrally connected to the inner wall of the support conduit 10 of the surgical support tube 100. In another embodiment of the present invention, the inflation conduit 150 is formed as an independent conduit and is pre-buried in the wall of the delivery section 130. The inflation port 140 is disposed near the outer portion of the delivery section 130.

[0203] The drainage section 110 has at least one drainage groove 111, and the drainage groove 111 has an opening 112. The drainage groove 111 is connected to the external space in the horizontal direction through the opening 112. The drainage groove 111 extends from the outer end of the drainage section 110 to the rear end to a predetermined position, and the drainage groove 111 is connected to the airbag section 120 in the longitudinal direction. It is worth mentioning that since the drainage section 110 is in a curved area in the natural state, that is, the drainage groove 111 is curved, and the drainage groove 111 forms a drainage curve rather than a straight drainage. This curved drainage method can reduce the probability of direct accumulation of particles such as blood clots to a certain extent because it does not form a large area of ​​straight plane or load-bearing surface.

[0204] The drainage section 110 has a first internal channel through which the guide element 200 passes for guidance. This first internal channel forms the guide outlet 103. This first internal channel is located approximately in the center of the drainage section 110 and extends along the length of the drainage section 110. The drainage grooves 111 are located outside of the first internal channel. Furthermore, multiple drainage grooves 111 are evenly distributed around the first internal channel of the drainage section 110.

[0205] The balloon segment 120 has an inflated state and a deflated state. In the inflated state, the balloon segment 120 expands, causing its surface to spherically protrude from the surface of the support pipe 10 of the surgical support tube 100. In the deflated state, the balloon segment 120 contracts, and its surface is aligned with the surface of the delivery segment 130. In other words, in the inflated state, the balloon segment 120 forms a balloon that protrudes from the surface of the delivery segment 130.

[0206] The airbag segment 120 has an inflation cavity 121 and a second inner channel. The inflation cavity 121 is connected to the inflation pipe 150 so that gas can be filled into the inflation cavity 121 through the inflation pipe 150. The inflation interface 140 is connected to the inflation pipe 150. In other words, the inflation interface 140, the inflation pipe 150 and the inflation cavity 121 are connected to form an inflation channel. When the surgical support tube 100 is used, after the airbag segment 120 enters the predetermined position inside the human body, an inflation device is used to inflate the inflation cavity 121 through the inflation channel so that the airbag segment 120 is expanded and fixed inside the human body, and the expanded airbag is used to compress and stop bleeding. The surgical support tube 100 also includes a one-way valve, which is sealed and connected to the inflation interface 140. That is, the airbag segment can be inflated by the inflation device. When the airbag segment 120 is inflated, the one-way valve unidirectionally closes the inflation interface 140 , so that the airbag segment 120 remains in the expanded and inflated state.

[0207] The inflation cavity 121 surrounds the outside of the second inner channel to form a substantially spherical airbag, or in other words, forms an annular supporting and fixing airbag around the second inner channel.

[0208] The second inner channel of the airbag section 120 longitudinally connects the drainage section 110 and the delivery section 130. Furthermore, the second inner channel connects the first inner channel of the drainage section 110 and the drainage groove 111. In other words, the second inner channel is used to pass through the guide element 200 and transport liquid. The second inner channel connects to the first inner channel of the drainage section 110, forming part of the guide channel 200. The second inner channel and the drainage groove 111 of the drainage section 110 form part of the drainage channel.

[0209] When the surgical support tube 100 is in use, when the airbag segment 120 is in the uninflated state and the drainage segment 110 is in the guided state by the guide element 200, the guide element 200 guides the support pipe 10 of the surgical support tube 100 into the human surgical channel. When the drainage segment 110 and the airbag segment 120 reach the predetermined position inside the human body, the airbag segment 120 is inflated so that the airbag segment 120 remains in the inflated state.

[0210] The delivery section 130 has a third internal channel that longitudinally connects to the second internal channel. The third internal channel forms the guide inlet 102. Overall, the drainage groove 111, the second internal channel, and the third internal channel of the drainage section 110 are connected to form the integrated drainage channel. The first internal channel, the second internal channel, and the third internal channel of the drainage section 110 are connected to form the guide channel 200. That is, during guidance, the guide element 200 passes through the third internal channel, the second internal channel, and the first internal channel, thereby placing the drainage section 110 in the guiding state and placing the entire surgical support tube 100 in a substantially straightened guiding state, thereby entering the human body through the human surgical channel. During use, human body fluids can be transported from the guide inlet 102 to the outside via the drainage groove 111, the second internal channel, and the third internal channel.

[0211] The first inner channel of the drainage section 110 is connected to the second inner channel and the third inner channel to form the guide channel 200, so as to guide the drainage section from the natural state to the guide state through the guide element 200 and facilitate its delivery into the human body.

[0212] The delivery section 130 is connected to the fixing member 20 to keep the surgical support tube 100 fixed.

[0213] The drainage section 110 has at least two drainage grooves 111, one of which extends from the outer end of the drainage section 110 to the rear section to the airbag section 120, and the other of which extends from the outer end of the drainage section 110 to the rear end to a predetermined distance above the inflation section. In other words, the drainage section 110 has at least one fully open drainage groove and at least one partially closed drainage groove. The fully open drainage groove is connected to the second inner channel longitudinally and is connected to the outside as a whole laterally, while the partially closed drainage groove is connected to the second inner channel longitudinally and is partially connected to the outside laterally. That is, the fully open drainage groove extends upward from the airbag section 120 to open, and the partially closed drainage groove extends upward from a predetermined length position above the airbag section 120 to open.

[0214] According to this embodiment of the present invention, the drainage section 110 has at least one closed area, and the closed area closes a portion of the opening 112 of at least one drainage groove 111 to form the partially closed drainage groove. In one embodiment of the present invention, the semi-closed area extends upward from the top of the airbag section 120 by a predetermined distance to cover a portion of the outer opening 112 of at least one drainage groove 111. That is, at the location of the closed area, the drainage groove 111 is connected to the airbag section 120 in the longitudinal direction or along the extension direction of the drainage section 110, and in the transverse direction or in the direction in which the drainage groove 111 is connected to the external space, a portion of the opening 112 of the drainage groove 111 is covered and cannot be connected to the outside.

[0215] The drainage section 110 comprises a first tube and a guide vane. The guide vane extends radially outward from the outer wall of the first tube to a predetermined height in the transverse direction, forming the drainage groove 111. The guide vane extends longitudinally along the exterior of the first tube for a predetermined length. In other words, the guide vane divides the space outside the first tube, forming the drainage groove 111. The first tube forms the first internal channel. The rear end of the guide vane is connected to the airbag section 120.

[0216] The drainage section 110 includes a plurality of guide vanes, which are symmetrically distributed on the outside of the first tube body, thereby forming a plurality of drainage grooves 111. The plurality of drainage grooves 111 are independently connected to the second inner channel. According to this embodiment of the present invention, the drainage section 110 includes 6 guide vanes, which are spaced apart to form 6 drainage grooves 111, which are respectively a first drainage groove, a second drainage groove, a third drainage groove, a fourth drainage groove, a fifth drainage groove and a sixth drainage groove from the inner side of the bend to the outside. The 6 drainage grooves 111 are independently connected to the second inner channel.

[0217] It is worth mentioning that, in one embodiment of the present invention, during the manufacturing process, the first tube body and the plurality of guide vanes can be integrally formed at one time, that is, the first tube body and the plurality of guide vanes are connected as a whole at one time, without obvious interfaces or without the need for step-by-step molding. In another embodiment, during the manufacturing process, the first tube body can be formed first, and then the plurality of guide vanes can be formed on the outside of the first tube body. An integral molding method is preferred. It should be noted that, in this embodiment of the present invention, the drainage section 110 is taken as an example to form 6 guide vanes and to form 6 drainage grooves in isolation, but in other embodiments of the present invention, the drainage section 110 can also form guide vanes of a certain number and arrangement, such as 2, 3, 4, 5 or more guide vanes, and the arrangement is an asymmetric arrangement extending longitudinally. The present invention is not limited in this regard.

[0218] According to an embodiment of the present invention, the position of the closed area of ​​the drainage groove 111 and the curvature of the drainage section 110 cooperate with each other. In other words, the open connection setting of the drainage groove 111 with the outside is different according to the different curvature positions of the drainage section 110. The length of the longitudinally extending opening 112 of the drainage groove 111 is adjusted by controlling the longitudinal extension length of the closed area. That is, the partially closed drainage grooves with different opening 112 lengths are formed at different length positions. On the other hand, the number or position of the drainage grooves 111 that need to be closed is controlled by the area size of the closed area formed by design or the number of the closed areas. In other words, the size, corresponding position and number of the external open area of ​​the drainage groove 111 are adjusted by the setting of the closed area and the coordination of the drainage groove 111. For example, but not limited to, taking the arc line of the outer bend of the drainage section 110 as a reference position, and taking the arrangement of the drainage grooves 111 after the drainage end is horizontally expanded as an example, in one embodiment, the length of the closed area can gradually decrease from the center position to both sides, that is, a symmetrical stepped distribution, and accordingly, the length of the multiple drainage grooves 111 gradually increases from the center to the length of the outer openings 112 on both sides, corresponding to the symmetrical inverted stepped arrangement of the closed area. In another embodiment of the present invention, the length of the closed area can gradually decrease from a predetermined position, that is, a unidirectional stepped change arrangement is formed, and accordingly, the length of the multiple drainage grooves 111 gradually increases starting from the predetermined position. In another embodiment of the present invention, the multiple drainage grooves 111 are spaced apart, such as one drainage groove 111 is partially closed, and the adjacent other drainage groove 111 is fully open, that is, the closed area is not set. In other words, the closed areas are set at intervals on the openings 112 of the multiple drainage grooves 111.

[0219] According to this embodiment of the present invention, the length of the opening 112 of the partially enclosed drainage groove gradually increases from the inner bend of the drainage section 110 to the outer side. In other words, the longitudinal extension length of the semi-enclosed area located inside the drainage section 110 is the longest, that is, the length of the opening 112 of the drainage groove 111 is the smallest. The longitudinal extension length of the adjacent semi-enclosed area decreases by a predetermined length, and the length of the opening 112 of the drainage groove 111 increases by a predetermined length, and so on, until the enclosed area is no longer provided, that is, the opening 112 of the drainage groove 111 is completely connected to the outside.

[0220] For example, in this embodiment of the present invention, the diversion section 110 includes 306 guide vanes and forms 306 diversion grooves 111, which are respectively a first guide vane, a second guide vane, a third guide vane, a fourth guide vane, a fifth guide vane and a sixth guide vane. The 306 diversion grooves are respectively a first diversion groove, a second diversion groove, a third diversion groove, a fourth diversion groove, a fifth diversion groove and a sixth diversion groove, and include 305 closed areas, which are respectively a first closed area, a second closed area, a third closed area, a fourth closed area and a fifth closed area. The first closed area is arranged in the first diversion groove, the second closed area is arranged in the second diversion groove, the third closed area is arranged in the third diversion groove, the fourth closed area is arranged in the fifth diversion groove, and the fifth closed area is arranged in the sixth diversion groove. The first diversion groove is located at the inner bend of the diversion section, and the fourth diversion groove is located at the outer bend of the diversion section 110. Taking the center plane of the curved spiral of the drainage section as the reference plane, the first drainage groove is symmetrical about the center of the reference plane, the fourth drainage groove is symmetrically distributed about the center of the reference plane, the second drainage groove and the sixth drainage groove are symmetrically distributed about the reference plane, the third drainage groove and the fifth drainage groove are symmetrically distributed about the reference plane, and accordingly, the first closed area is symmetrical about the center of the reference plane, the second closed area is symmetrical about the center of the reference plane, and the third closed area and the fifth closed area are symmetrically distributed about the reference plane. Furthermore, the length of the first closed area is greater than the length of the second closed area, the length of the second closed area is greater than the length of the third closed area, the length of the second closed area is the same as the length of the fifth closed area, and the length of the third closed area is the same as the length of the fourth closed area. That is to say, with respect to both sides of the reference plane, the first closed area, the second closed area and the third closed area form a step change with gradually decreasing length, and the first closed area, the fifth closed area and the fourth closed area form a step change with gradually decreasing length.

[0221] For example, in another embodiment of the present invention, with the center plane of the curved spiral of the drainage end as a reference, the first drainage groove, the second drainage groove, and the third drainage groove and the fourth drainage groove, the fifth drainage groove, and the sixth drainage groove are respectively located on both sides of the spiral reference plane, and the first drainage groove and the sixth drainage groove are symmetrically located on the inner bend of the drainage section, and the fifth drainage groove and the sixth drainage groove are located on the outer bend of the drainage section 110. In other words, taking the cutaway state as an example, the first drainage groove, the second drainage groove, and the third drainage groove are located on one side of the central symmetry line, the fourth drainage groove, the fifth drainage groove, and the sixth drainage groove are located on the other side of the central symmetry line, and the two groups of drainage grooves are symmetrically distributed about the central symmetry line. In other words, the first drainage groove and the fourth drainage groove have the same length and are symmetrically distributed about the symmetry line, the second drainage groove and the fifth drainage groove have the same length and are symmetrically distributed about the symmetry line, and the third drainage groove and the sixth drainage groove have the same length and are symmetrically distributed about the symmetry line. Furthermore, the drainage section 110 is provided with 304 enclosed areas, namely a first enclosed area, a second enclosed area, a third enclosed area, and a fourth enclosed area. The first enclosed area is provided in the first drainage trough, the second enclosed area is provided in the second drainage trough, the third enclosed area is provided in the fifth drainage trough, and the fourth enclosed area is provided in the sixth drainage trough. The first enclosed area and the fourth enclosed area have the same length, and the second enclosed area and the third enclosed area have the same length. The length of the first enclosed area is greater than the length of the second enclosed area, and the length of the fourth enclosed area is greater than the length of the third enclosed area.

[0222] For example, in another embodiment of the present invention, the drainage section 110 includes 306 guide vanes forming 306 drainage grooves 111, namely the first drainage groove, the second drainage groove, a third drainage groove, a fourth drainage groove, a fifth drainage groove, and a sixth drainage groove. The first drainage groove is located at the inner bend of the drainage end, and the fourth drainage groove is located at the outer bend of the drainage section 110. The drainage section 110 includes 303 closed areas, namely the first closed area, the second closed area, and the third closed area. The first closed area is provided in the first drainage groove, the second closed area is provided in the third drainage groove, and the third closed area is provided in the fifth drainage groove. In other words, the multiple closed areas are alternately provided in the multiple drainage grooves.

[0223] It is worth mentioning that in an embodiment of the present invention, the closed area is set in at least part of the area of ​​the drainage groove 111 located in the inner bend, that is, the partially closed drainage groove 111 is formed, and the closed area of ​​the drainage groove 111 located in the outer bend is reduced, that is, the opening 112 is increased, or the fully open drainage groove is formed, so that the curve turning of the drainage section 110 is matched with the opening size of the drainage groove 111. Based on this selection, the drainage section 110 can further reduce the risk of blockage. The reason is that: the bending curvature of the area located on the inner side of the drainage section 110 is greater than the external bending curvature, or the inner turn is a small bend and the outer turn is a large bend. Therefore, the inner part mainly bears extrusion force and the outer part mainly bears tension. Based on the elastic plane structure of the guide vane, extrusion and bending deformation are easily generated inside the bend. By setting the closed area, the position of the guide vane can be relatively fixed, and the deformation of the guide vane can be reduced, thereby reducing the space reduction caused by deformation and the resulting particle or blood clot blockage.

[0224] Further, according to an embodiment of the present invention, the drainage section 110 includes at least one protective leaf, which is arranged at the outer end of the guide leaf to prevent the end of the guide leaf from directly contacting the outside. For example, it prevents the planar end of the guide leaf from directly contacting the human tracheal endothelium and causing adverse stimulation reactions.

[0225] Preferably, the protective blade is arranged at the outer end of the guide vane in an arc shape. In other embodiments of the present invention, the protective blade can also be in other shapes.

[0226] According to this embodiment of the present invention, the plurality of guard blades are respectively provided at the outer ends of the guide vanes, that is, the number of the guard blades matches the number of the guide vanes. A gap is formed between two adjacent guard blades, and the gap connects the drainage groove 111 and the outside.

[0227] The multiple guard vanes are arranged at intervals to form a generally annular outer surface. In other words, the overall surface forms a relatively flat, arcuate surface, rather than a striped, spaced-apart surface formed directly on the end face of the guide vane. In other words, the guard vanes mitigate the irritation of the guide vanes. The guard vanes arcuately cover the exterior of the guide vanes, with gaps formed between adjacent guard vanes. This allows liquid to pass through, forming a circumferential protective guide wall.

[0228] In one embodiment of the present invention, the protective vanes extend on both sides of the guide vanes, that is, forming a substantially T-shaped structure.

[0229] In another embodiment of the present invention, the protective vane extends unidirectionally on one side of the guide vane, that is, the protective vane and the guide vane form an L-shaped structure, and the present invention is not limited in this regard.

[0230] In this embodiment of the present invention, the surgical support tube 100 further has a flushing channel. Specifically, the surgical support tube 100 includes a flushing interface, which is provided in the delivery section 130 and is connected to the third inner channel to form the flushing channel.

[0231] When using the surgical support tube 100, first, a guide element 200 is passed through the surgical support tube 100, so that the support tube is in the guided state, that is, the drainage section 110 is straightened. Then, the surgical support tube 100 is guided through the human surgical channel by the guide element 200, and then the guide element 200 is pulled out, so that the surgical support tube 100 is in the natural state, that is, the drainage section 110 is naturally bent, and then blood, water, and other liquids are drained out. When a local blockage occurs or blood flow is found to be obstructed, or when it is found that the external flushing device is connected to the flushing interface, water is then flushed into the interior through the flushing channel to flush the local blockage or clear the drainage channel, thereby preventing the risk of blockage.

[0232] In the first embodiment of the present invention, the surgical support tube includes a single drainage groove as an example. In other embodiments of the present invention, the surgical support tube may include other numbers of drainage grooves and other layouts. For example, the surgical support tube 100 includes two drainage grooves 111, namely a first drainage groove and a second drainage groove, with the first drainage groove and the second drainage groove arranged symmetrically in opposite directions.

[0233] Optionally, the surgical support tube 100 includes three drainage grooves, namely a first drainage groove, a second drainage groove and a third drainage groove. The first drainage groove, the second drainage groove and the third drainage groove are evenly distributed around the first tube body in a triangular distribution.

[0234] Optionally, the surgical support tube 100 includes four drainage grooves, namely a first drainage groove, a second drainage groove, a third drainage groove and a fourth drainage groove, and the first drainage groove, the second drainage groove, the third drainage groove and the fourth drainage groove are symmetrical about the neutral around the first tube body.

[0235] The drainage section 110 of the surgical support tube 100 includes 306 drainage grooves, namely a first drainage groove, a second drainage groove, a third drainage groove, a fourth drainage groove, a fifth drainage groove, and a sixth drainage groove. From the upper end to the lower end of the drainage end, the opening lengths of the first drainage groove, the second drainage groove, the third drainage groove, the fourth drainage groove, the fifth drainage groove, and the sixth drainage groove gradually increase. Correspondingly, the first drainage groove corresponds to a first closed area, the second drainage groove corresponds to a second closed area, the third drainage groove corresponds to a third closed area, the fourth drainage groove corresponds to a fourth closed area, and the fifth drainage groove corresponds to a fifth closed area. The closed lengths of the first closed area, the second closed area, the third closed area, the fourth closed area, and the fifth closed area decrease in sequence. Among them, the sixth drainage groove does not have the closed area or the closed area is the shortest.

[0236] That is, it is arranged in the inverted direction of 13A. The drainage section 110 of the surgical support tube 100 includes 306 drainage grooves, namely a first drainage groove, a second drainage groove, a third drainage groove, a fourth drainage groove, a fifth drainage groove, and a sixth drainage groove. From the lower end to the upper end of the drainage section 110, the opening lengths of the first drainage groove, the second drainage groove, the third drainage groove, the fourth drainage groove, the fifth drainage groove, and the sixth drainage groove gradually increase. Correspondingly, the first drainage groove corresponds to a first closed area, the second drainage groove corresponds to a second closed area, the third drainage groove corresponds to a third closed area, the fourth drainage groove corresponds to a fourth closed area, and the fifth drainage groove corresponds to a fifth closed area. The closed lengths of the first closed area, the second closed area, the third closed area, the fourth closed area, and the fifth closed area decrease in sequence. Among them, the sixth drainage groove does not have the closed area or has the shortest closed area.

[0237] The length setting of the closed area and the position coordination of the drainage groove 111 in which the closed area is set are not limited to the above examples.

[0238] Furthermore, the outer end of the surgical support tube 100 is a fully closed arc-shaped head end. The outer end of the surgical support tube 100 is an open arc-shaped head end, that is, the top end of each drainage groove 111 is directly connected to the outside.

[0239] It is worth mentioning that the drainage section 110 of the surgical support tube according to the present invention has a plurality of drainage grooves 111, and the drainage sheets forming the drainage grooves 111 extend radially outward, that is, drainage positions are formed on the entire circumference of the drainage section 110 and at different bending positions, and the drainage sheets have a certain supporting effect. When the blood clot reaches the drainage segment, it is blocked by the guide vanes of the drainage groove. Therefore, even if a blood clot appears, it will not block all drainage areas of all drainage grooves, that is, it will not be completely blocked. However, an ordinary support tube can be easily completely blocked by a blood clot because it has only two small holes for entry.

[0240] Referring to Figures 12 to 28 of the specification, the surgical safety tube provided by the present invention is described, which is suitable for being inserted into a patient's body along a fistula tract. Bleeding from the lesion site in the patient's body can flow out along the observation channel of the surgical safety tube, making it easier for the surgeon to observe the bleeding at the lesion site and thereby assess the patient's recovery. After the surgical safety tube is inserted into the patient's fistula tract and comes into contact with the body fluids in the fistula tract, it can switch from a contracted state to an expanded state, contacting the bleeding site on the inner wall of the fistula tract, thereby achieving a rapid hemostasis effect.

[0241] Referring to Figures 12 to 28 of the present specification, the surgical safety tube includes an internal portion 610. The internal portion has a head section 611, a middle section 612, and a tail section 613, with the head section 611 and the tail section 613 located at either end of the middle section 612. The internal portion 610 also has an observation channel 614 connecting the head section 611, the middle section 612, and the tail section 613.

[0242] During use, the head section 611 is first aligned with a fistula 6901 of a patient 6900 and inserted into the body of the patient 6900, so that the head section 611 moves to the lesion location in the body of the patient 6900.

[0243] 14 of the specification, the surgical safety tube has a contracted state and an expanded state. In the contracted state, the diameter of the internal part 610 of the surgical safety tube is small; in the expanded state, the diameter of the internal part 610 is large.

[0244] Before and during the insertion of the surgical safety tube into the fistula 6901, the surgical safety tube is in the contracted state, and the internal portion 610 has a smaller size, which facilitates the insertion of the internal portion 610 into the fistula 6901. After the surgical safety tube enters the fistula 6901 and comes into contact with blood in the fistula 6901, the internal portion 610 can gradually transition from the contracted state to the expanded state.

[0245] During the transition of the internal portion 610 from the contracted state to the expanded state, the internal portion 610 can absorb blood in the fistula tract 6901, thereby reducing blood accumulation in the fistula tract 6901 and lowering the risk of infection. The internal portion 610 in the expanded state can contact and block the bleeding site in the fistula tract 6901, achieving rapid hemostasis.

[0246] It is worth noting that during use of the surgical safety tube provided by the present invention, if it is discovered that the patient's lesion location has not recovered satisfactorily, the internal portion 610 can be promptly removed from the fistula tract 6901, and the medical device can be reinserted through the fistula tract 6901 to perform the corresponding operation, without having to perform the fistula tract 6901 formation step again. This can effectively reduce the secondary pain caused to the patient 6900. In other words, the surgical safety tube provided by the present invention also has the function of maintaining the fistula tract 6901.

[0247] 15 and 16 of the accompanying drawings, the internal portion 610 includes an inner core 615 and an outer shell 616. The inner core 615 surrounds the observation channel 614, and the outer shell 616 is wrapped around the outer surface of the inner core 615. When the outer shell 616 comes into contact with blood in the fistula tract 6901, it expands, causing the internal portion to transition from the contracted state to the expanded state.

[0248] Furthermore, the shell 616 includes a hemostatic sponge. Preferably, the shell 616 is made of a hemostatic sponge.

[0249] During use, after the internal part 610 is extended into the fistula 6901, the outer shell 616 of the internal part 610 comes into contact with the liquid in the fistula 6901, and the hemostatic sponge of the outer shell 616 absorbs blood and expands, thereby achieving the purpose of absorbing the blood in the fistula 6901 and squeezing the bleeding points in the fistula 6901.

[0250] In the first variant embodiment of the present invention, the shell 616 is made of a degradable material and has a plurality of pores. The blood in the fistula 6901 can enter the pores in the shell 616, causing the shell 616 to expand and the internal part 610 to switch from the contracted state to the expanded state.

[0251] Preferably, the degradable material is a medical degradable material, for example but not limited to chitosan, collagen, gelatin, cellulose (BC), silk fibroin, polyglycolide, polylactide PLA, etc. The specific type of the degradable material should not constitute a limitation to the present invention.

[0252] In the first variant embodiment, when the internal portion 610 is initially inserted into the fistula tract 6901, the outer shell 616 absorbs blood in the fistula tract 6901 and expands, thereby absorbing bleeding in the fistula tract 6901 and squeezing the bleeding site in the fistula tract 6901. Later in the internal portion 610's insertion into the fistula tract 6901, as the fistula tract 6901 heals, the outer shell 616 of the internal portion 610 gradually degrades and its outer diameter gradually decreases, facilitating removal of the internal portion 610 from the fistula tract 6901.

[0253] In a second variant embodiment of the present invention, the inner core 615 is also made of a degradable material. In this second variant embodiment, both the inner core 615 and the outer shell 616 are made of a degradable material, and the internal portion 610 does not need to be removed during use, as it can automatically degrade and disappear.

[0254] In the second variant embodiment, during use, the outer shell 616 directly contacts the inner wall of the fistula tract 6901, and the outer shell 616 degrades faster than the inner core 615. If a second surgery is required before the inner core 615 degrades, the inner core 615 can be promptly removed, eliminating the need for a second perforation operation.

[0255] Furthermore, the inner core 615 also has a plurality of pores. Blood in the fistula tract 6901 can enter the pores of the inner core 615, causing the inner core 615 to expand. Furthermore, the porosity of the inner core 615 is lower than that of the outer shell 616. Since the porosity of the inner core 615 is lower than that of the outer shell 616, during use, the expansion of the inner core 615 upon absorbing blood is less than that of the outer shell 616. This prevents the expansion of the inner core 615 upon absorbing blood from completely blocking the observation channel 614, thereby maintaining the patency of the observation channel 614.

[0256] 12 and 13 of the specification, the head section 611 of the inner body portion 610 has a natural state and a guided state. In the natural state, the head section 611 is bent, and in the guided state, the head section is substantially straight.

[0257] Referring to Figures 17 to 22 of the specification, specifically, before extending the internal part 610 into the fistula tract 6901, a guide wire 6902 is first inserted into the fistula tract 6901, and then a sheath 6903 is extended into the fistula tract 6901 along the guide wire 6902, the observation channel 614 is aligned with the guide wire 6902, and the internal part 610 is extended into the sheath 6903. After the internal part 610 of the surgical safety tube is extended into the sheath 6903 to a preset depth, the sheath 6903 is pulled out, and then the guide wire 6902 is pulled out to complete the insertion process of the surgical safety tube.

[0258] During the process of extending the internal portion 610 into the sheath 6903 along the guide wire 6902, the head section 611 of the internal portion 610 is substantially straightened under the guidance of the guide wire 6902, facilitating its insertion into the sheath 6903. After the guide wire 6902 is pulled out of the observation channel 614 of the internal portion 610, the head section 611 of the internal portion 610 bends and gradually returns to the natural state.

[0259] It should be pointed out that when the head section 611 of the internal part 610 is in the natural state, the bent head section 611 has a larger volume, which can fix the internal part 610, prevent the internal part 610 from slipping out of the fistula 6901, and improve the stability of the internal part 610 installed in the patient 6900.

[0260] 12 and 13 of the specification, specifically, the head section 611 includes a head section pipe 6111. A section of the head section pipe 6111 away from the tail section 613 has a distal opening 6112 communicating with the observation channel 614.

[0261] After the internal portion 610 is placed into the patient 6900, blood in the patient 6900 can flow through the distal opening 6112 into the observation channel 614 and be discharged. During the process of placing the internal portion 610 into the patient 6900, the guide wire 6901 can pass through the distal opening 6112 into the observation channel 614 and guide and limit the head section 611 during the insertion of the internal portion 610.

[0262] Furthermore, the side wall of the head section pipe 6111 has a plurality of side openings 6113 connected to the observation channel 614. Through the side openings 6113, blood in the patient 6900 can enter the observation channel from the side openings 6113 on the side wall of the head section pipe 6111, allowing blood to enter the observation channel 614 from multiple directions and positions, thereby improving blood drainage efficiency.

[0263] Preferably, a plurality of side openings 6113 are provided around the side of the head section pipe 6111 to allow blood in the patient 690 to enter the observation channel 614 from multiple directions around the head section pipe 6111 .

[0264] Preferably, the length extension direction of the side opening 6113 is consistent with the length extension direction of the head section 611. Optionally, the length extension direction of the side opening 6113 can also intersect with the length extension direction of the head section 611. It is understood that the length extension direction and extension length of the side opening 6113 should not constitute a limitation to the present invention.

[0265] 23 and 24 of the specification, in a third variant embodiment of the surgical safety tube, the sidewall of the head section 611 has a plurality of drainage grooves 6116, the middle section 612 has a middle channel 6120, and the tail section 613 has a tail channel 6130. The drainage grooves 6116 are respectively connected to the middle channel 6120, which is in turn connected to the tail channel 6130. The drainage grooves 6116, the middle channel 6120, and the tail channel 6130 are connected to form the observation channel 614.

[0266] In the third variant embodiment, blood in the patient 6900 can flow along the plurality of drainage grooves 6116 around the head section 611 into the middle channel 6120 and be discharged outward through the tail channel 6130. During the blood discharge process, if one drainage groove 6116 becomes blocked by a blood clot or other foreign matter, it will not affect the normal flow of blood in other drainage grooves 6116, and will not affect the normal use of the surgical safety tube.

[0267] Furthermore, the head section 611 includes an intermediate guide tube 6114 and several guide plates 6115, one end section of the several guide plates 6115 is connected to the intermediate guide tube 6114, and the other end extends away from the intermediate guide tube 6114, and the drainage groove 6116 is formed between adjacent guide plates 6115.

[0268] By disposing a plurality of guide plates 6115 on the outer side of the intermediate guide tube 6114, a plurality of guide grooves 6116 can be formed on the outer side of the intermediate guide tube 6114, and adjacent guide grooves 6116 are separated from each other. The number of guide plates 6115 can be three, four, five, or more, and the specific number of guide plates 6115 should not constitute a limitation of the present invention.

[0269] Furthermore, the middle guide tube 6114 has a guide channel 61140 that communicates with the middle channel 6120 for the guide wire 6902 to pass through. During the process of inserting the internal portion 610 of the surgical safety tube into the fistula 6901 of the patient 6900, the guide wire 6902 is adapted to pass through the guide channel 61140 of the head section 611 and extend into the middle channel 6120 and the tail channel 6130 to guide the internal portion 610 to be installed into the fistula 6901.

[0270] Furthermore, the head section 611 also includes a plurality of protective plates 6117 , which are installed at one end of the guide plate 5 away from the intermediate guide tube 6114 , and there is a gap 61170 between adjacent protective plates 6117 , and the gap 61170 is connected to the drainage groove 6116 .

[0271] The protective plates 6117 have a certain curvature, and adjacent protective plates 6117 are arranged in a roughly circular shape. The protective plates 6117 can prevent the end of the drainage plate 6115 away from the intermediate guide tube 6114 from directly contacting the patient 6900, thereby preventing the end of the drainage plate 6115 away from the intermediate guide tube 6114 from scratching the patient 6900.

[0272] In the third variant embodiment, blood in the fistula 6901 of the patient 6900 can enter the drainage groove 6116 through the gap 61170, and then sequentially enter the middle channel 6120 and the tail channel 6130 for discharge. The width of the gap 61170 is smaller than the width of the drainage groove 6116, which can effectively prevent blood entering the drainage groove 6116 from flowing out.

[0273] With reference to Figure 24 of the specification, preferably, the middle portion of the protective plate 6117 is connected to the guide plate 6115, and the two ends of one protective plate 6117 form the gap 61170 with the adjacent protective plate 6117. Alternatively, in other preferred embodiments of the present invention, one end of the protective plate 6117 can be connected to the end of the guide plate 61170 away from the middle guide tube 6114. It should be understood that the specific location at which the protective plate 6117 is connected to the guide plate 6115 should not constitute a limitation of the present invention.

[0274] 12 to 14 , 17 to 23 , and 25 to 28 , the surgical safety tube further includes an external portion 620 . The external portion 620 is adapted to be fixed to the patient 6900 to secure the internal portion 610 and prevent it from slipping out of the fistula 6910 .

[0275] Specifically, the external portion 620 includes a fixing plate 621 , which is suitable for being connected to the tail section 613 . The fixing plate 621 is also suitable for being fixedly installed outside the body of the patient 6900 to fix the tail section 613 .

[0276] After the internal part 610 extends into the body of the patient 6900 , the fixing plate 621 is suitable for being fixedly installed outside the body of the patient 6900 to fix the internal part 610 and prevent the internal part 610 from leaving the fistula 6901 from the fistula 6901 .

[0277] Referring to Figures 12 and 13 of the specification, the fixing plate 621 further includes a connecting portion 6211 and an adhesive portion 6212. The adhesive portion 6212 is adapted to be attached to the outside of the patient 6900. The connecting portion 6211 is integrally connected to the tail section 613. The tail section 613 has a tail opening 6118 communicating with the observation channel 614. The external portion 620 further includes a sealing plug 622 adapted to be installed in the observation channel 614 through the tail opening 6118.

[0278] The sealing plug 622 can control the opening and closing of the tail opening 6118. When it is necessary to observe the blood flowing out of the observation channel 614, the sealing plug 622 is removed from the tail opening 6118. When it is not necessary to observe the blood flowing out of the observation channel 614, the sealing plug 622 is installed on the tail opening 6118 to block the tail opening 6118 and prevent blood from flowing out of the observation channel 614.

[0279] Optionally, the fixing plate 621 and the sealing plug 622 can also be made of transparent materials, so that the doctor and / or the patient can observe the blood status in the observation channel 614 without removing the sealing plug 622.

[0280] Furthermore, the external portion 620 includes a connecting strip 623, one end of which is connected to the fixing plate 621 and the other end to the sealing plug 622. Preferably, the connecting strip 623 is made of a flexible material, such as, but not limited to, elastic rubber, silk thread, or metal wire. The provision of the connecting strip 623 prevents the sealing plug 622 from being lost after being removed from the tail opening 6118, facilitating its use.

[0281] The adhesive portion 6212 of the fixing plate 621 is provided with an adhesive layer 62121 , and the adhesive layer 62121 is coated with glue and is suitable for being adhered to the outside of the body of the patient 6900 .

[0282] Referring to FIG. 25 of the specification, a fourth variant embodiment of the surgical safety tube provided by the present invention is described. The fixing plate 621 includes an adhesive portion 6212 and a sealing portion 6213. The adhesive portion 6212 is adapted to be attached to the outside of the patient 6900. The external portion 620 also includes a sealing plug 622 disposed on the sealing portion 6213. The tail section 613 has a tail opening 6118 communicating with the observation channel 614. The sealing plug 622 is adapted to be installed in the observation channel 614 through the tail opening 6118.

[0283] In the fourth variant embodiment, the sealing plug 622 is installed on the fixing plate 621 . When the adhesive portion 6212 of the fixing plate 621 is attached to the outside of the patient 6900 , the sealing plug 622 blocks the tail opening 6118 .

[0284] In the fourth modified embodiment, the external portion 620 further includes a connecting strip 623 , one end of which is connected to the tail section 613 , and the other end of which is connected to the fixing plate 621 .

[0285] Referring to FIG. 26 of the specification, a fifth variant embodiment of the surgical safety tube provided by the present invention is described. The fixing plate 621 includes an adhesive portion 6212 and a sealing portion 6213. The adhesive portion 6212 is adapted to be attached to the outside of the patient 6900. The sealing portion 6213 includes a sealing cover 62131. The tail section 613 has a tail opening 6118 that communicates with the observation channel 614. The sealing cover 62131 is adapted to cover the outside of the tail opening 6118.

[0286] In the fifth variant embodiment, when the adhesive portion 6212 of the fixing sheet 621 is attached to a preset position outside the patient 6900, the sealing portion 62131 is adapted to illuminate the tail opening 6118, thereby shielding the tail opening 6118. Preferably, the sealing cover 62131 is made of a transparent material to facilitate observation of the state of the blood flowing out of the observation channel 614. Optionally, the sealing cover 62131 can also be implemented as a storage bag. When the adhesive portion 6212 is attached to a preset position outside the patient 6900, the tail opening 6118 is connected to the storage bag, and the blood flowing out of the observation channel 614 can be collected in the storage bag. Preferably, the storage bag is made of a transparent material to facilitate observation of the state of the blood in the storage bag by the patient.

[0287] With reference to Figures 27 and 28 of the present specification, a sixth variant embodiment of the surgical safety tube provided by the present invention is described. The fixing plate 621 includes an adhesive portion 6212 and a relief portion 6214. The adhesive portion 6212 is adapted to be attached to the patient 6900's body; the relief portion 6214 has a relief opening 62140. The external portion 620 further includes a first sleeve 6241 and a second sleeve 6242. The first sleeve 6241 has a first sleeve channel, and the second sleeve 6242 has a second sleeve channel. The first sleeve 6241 is connected to the relief portion 6214, and the first sleeve channel communicates with the relief opening 62140. The tail section 613 is adapted to pass through the relief opening 62140 and enter the first sleeve channel. The external portion 620 further includes a storage bag 625, which is mounted on the second sleeve 6242 and communicates with the second sleeve channel. When the second sleeve 6242 is installed on the first sleeve 6241 , the tail section 613 is connected to the receiving bag 625 , and the blood in the observation channel 614 can flow into the receiving bag 625 .

[0288] Preferably, the storage bag 625 is made of a transparent material to facilitate observation of the state of the blood collected in the storage bag 625 .

[0289] Preferably, the second sleeve 6242 is detachably mounted on the first sleeve 6241. Preferably, the second sleeve 6242 and the first sleeve 6241 are detachably connected via a threaded connection, wherein the outer wall of the first sleeve 6241 is provided with external threads, and the inner wall of the second sleeve is provided with corresponding internal threads. Optionally, in other preferred embodiments of the present invention, the first sleeve 6241 and the second sleeve 6242 can be detachably connected via other means, such as, but not limited to, snap-fitting, interference fit, and other detachable connection means.

[0290] According to another aspect of the present invention, the present invention further provides a surgical safety tube kit, comprising the aforementioned surgical safety tube, a guide wire 6902, and a sheath 6903. The guide wire 6902 is adapted to be inserted into a fistula tract 6901 of a patient 6900; the sheath 6903 is adapted to be inserted into the fistula tract 6901 along the guide wire 6902; the surgical safety tube is adapted to be inserted into the sheath 6903 along the guide wire 6902 to enter the fistula tract 6901; after the guide wire 6902 and the sheath 6903 leave the fistula tract 6901, the surgical safety tube remains in the fistula tract 6901.

[0291] The usage process of the surgical safety tube kit provided in the present invention is as follows: first, insert the guide wire 6902 into the fistula 6901 of the patient 6900; insert the sheath 6903 into the fistula 6901 along the guide wire 6902; align the observation channel 614 of the surgical safety tube with the guide wire 6902, so that the surgical safety tube is inserted into the sheath channel of the sheath 6903 along the guide wire 6902; pull out the sheath 6903 from the fistula 6901; pull out the guide wire 6902 from the observation channel 614 of the surgical safety tube.

[0292] It should be pointed out that before inserting the surgical safety tube into the fistula 6901, the sheath 6903 is first inserted into the fistula 6901. The sheath 6903 can isolate the surgical safety tube from the fistula 6901 during the process of inserting the surgical safety tube into the fistula 6901, preventing the surgical safety tube from switching to the expanded state after sucking blood, thereby facilitating the insertion of the surgical safety tube.

[0293] With reference to Figures 29 to 32 , a fistula device according to a preferred embodiment of the present invention is schematically illustrated. The fistula device includes a drainage tube 810 and a fistula bag 820. The fistula bag 820 is detachably connected to the drainage tube 810. When the drainage tube 810 is placed in the patient's body, the fistula bag 820 is used to contain liquids or liquid-solid mixtures such as blood, pus, and urine that flow out of the drainage tube 810. Furthermore, the fistula bag 820 is detachable, making it easy to remove and replace. Removal does not affect the continued placement of the drainage tube 810 in the patient's body, allowing for the establishment of a channel between the patient's body surface and the affected area. This allows for timely drainage as needed and, in the event of a poor surgical outcome, facilitates the rapid establishment of a secondary surgical channel, minimizing harm to the patient.

[0294] The drainage tube 810 is made of degradable material. The part inside the body can degrade by itself in the internal environment, and the part outside the body can fall off or be cut off by itself without having to be taken out. It is safer and more convenient and is very beneficial to the patient's recovery.

[0295] The drainage tube 810 includes a drainage tube body 811 and a fixing unit 812, wherein the fixing unit 812 includes a fixing body 8121 and a connecting body 8122, the fixing body 8121 has an adhesive surface 812101 and a fixing surface 812102 opposite to the adhesive surface 812101, the drainage tube body 811 is connected to the fixing body 8121 and is fixed to the patient's body through the adhesive surface 812101 of the fixing body 8121, that is, when the drainage tube 811 is partially placed in the patient's body, the adhesive surface 812101 is adhered to the patient's body surface, thereby fixing the drainage tube 810.

[0296] The fistula bag 820 includes a containing unit 821 and a connecting unit 822. The containing unit 821 has a fluid inlet 8211 and a containing body 8212 connected to the fluid inlet 8211. The connecting body 8122 is arranged on the fixed surface 812102. The connecting unit 822 is installed on the connecting body 8122 of the fixed unit 812 of the drainage tube 810, so that the fluid inlet 8211 is connected to the drainage tube 810, and the accumulated fluid drained from the drainage tube 810 enters the containing body 8212 through the fluid inlet 8211 and is collected. The fixed body 8121 has a tube passage 81210, which matches the drainage tube body 811 to allow the drainage tube body 811 to pass through, and the fixed unit 812 can be detachably connected to the patient's skin, so that the drainage tube body 811 is firmly located in the patient's body through the fixed unit 812 to drain urine, pus or blood in the patient's renal pelvis to the containing unit 821 of the fistula bag 820, helping the patient to recover quickly.

[0297] The drainage tube body 811 has a guide channel 81101. When in use, a guide wire is inserted into the guide channel 81101 to deliver the flexible drainage tube body 811 to a predetermined position in the patient's body.

[0298] The drainage tube body 811 has at least one fluid channel 81102 and at least one fluid groove 81103. The fluid groove 81103 and the fluid channel 81102 are connected. The liquid in the patient's body can enter the fluid channel 81102 through the fluid groove 81103 and then be drained out of the body.

[0299] According to one embodiment of the present invention, the drainage tube body 811 includes a drainage tube front section 8111, a drainage tube rear section 8112 and a stabilizing section 8113, wherein the drainage tube front section 8111 and the drainage tube rear section 8112 are connected, that is, the drainage tube rear section 8112 extends backward to form the drainage tube front section 8111, and the two are connected in one piece. The stabilizing section 8113 is externally connected to the connection between the drainage tube front section 8111 and the drainage tube rear section 8112, and the three constitute the drainage tube body 811. The drainage tube front section 8111 can be in a vertical state and a curved state. In this embodiment, the drainage tube front section 8111 is in a naturally curved state, that is, similar to a pig tail structure. The curved front section of the drainage tube body 811 can reduce irritation to the patient's body. When it is necessary to reach a predetermined position on the patient's body, a guide wire is inserted into the guide channel 81101 to roughly straighten the soft, curved front section 8111 of the drainage tube so that the front section 8111 of the drainage tube reaches the predetermined position. After the guide wire is pulled out, the front section 8111 of the drainage tube returns to a natural curved state at the predetermined position to reduce irritation to the body.

[0300] Furthermore, a plurality of fluid grooves 81103 are arranged at intervals on the front section 8111 of the drainage tube, and the fluid channel 81102 is arranged along the front section 8111 of the drainage tube to extend to the rear section 8112 of the drainage tube, and is connected to the fluid grooves 81103 at the front section 8111 of the drainage tube. The guide channel 81101 extends from the end of the rear section 8112 of the drainage tube to the top of the front section 8111 of the drainage tube to facilitate the insertion of a guide wire, so that the front section 8111 of the drainage tube reaches a roughly straight state for easy insertion into the patient's body.

[0301] The position inserted into the human body is defined as the front, the position exposed outside the human body is defined as the back, the position closer to the front is defined as the top, and the position closer to the back is defined as the end.

[0302] The fluid channel 81102 passes through the drainage tube front section 8111, the stabilizing section 8113, and the drainage tube rear section 8112 in sequence from front to back. In other words, the stabilizing section 8113 expands outside the fluid channel 81102 at the stabilizing section 8113, expanding toward the periphery without affecting the passage of liquid or liquid-solid mixtures through the fluid channel 81102. Liquid-solid mixtures refer to urine, pus, or blood containing blood clots or stones.

[0303] The drainage tube body 811 includes an outer tube 8115 and an inner tube 8116. The outer tube 8115 is circumferentially connected to the outer portion of the inner tube 8116. The inner tube 8116 and the outer tube 8115 are suitable for integral molding or layered manufacturing. The front section of the outer tube 8115 and the front section of the inner tube 8116 are connected together to form the drainage tube front section 8111. The rear section of the outer tube 8115 and the rear section of the inner tube 8116 are connected to form the drainage tube rear section 8112. The fluid channel 81102 is formed between the outer tube 8115 and the inner tube 8116. In other words, the fluid channel 81102 is provided in the outer tube 8115 or between the outer tube 8115 and the inner tube 8116. The fluid groove 81103 is provided in the front section of the outer tube 8115. The inner tube 8116 is a hollow structure, that is, the guide channel 81101 is formed inside the inner tube 8116. In the present invention, the guide channel 81101 and the fluid channel 81102 may be connected or disconnected.

[0304] According to another embodiment, the guide channel 81101 is closed at the top of the front section 8111 of the drainage tube, and is connected to the fluid groove 81103 through at least one through hole in the front section of the inner tube 8116, thereby connecting the guide channel 81101 to the outside. Alternatively, the through hole may not be opened, so that the guide channel 81101 has no drainage function but only a guiding function. Therefore, the connection forms of the guide channel 81101 are various and are not limited by the examples of the present invention.

[0305] Furthermore, the drainage tube body 811 also has a fluid outlet 81104 and a guide inlet 81105, the fluid outlet 81104 is connected to the fluid channel 81102, and the guide inlet 81105 is connected to the guide channel 81101, wherein the fluid outlet 81104 and the guide inlet 81105 are both arranged at the end of the drainage tube rear section 812, and the fluid outlet 81104 and the guide inlet 81105 are both connected to the fluid inlet 8211 of the fistula bag 820 and the container body 8212, so that the accumulated fluid in the body is drained to the fistula bag 820.

[0306] Each fluid channel 81102 extends from each drainage fluid outlet 81104 at the end of the drainage tube rear section 8112 to the top of the drainage tube front section 8111, and is connected to the patient's internal environment through the fluid groove 81103, so that the accumulated fluid can be drained to the outside of the body; the inflation channel 811302 extends from the inflation port 811303 at the end of the drainage tube rear section 811302 to the inflation cavity 811301 to inflate the inflation cavity 811301; the guide channel 81101 extends from the guide inlet 81105 at the end of the drainage tube rear section 8112 to the top of the drainage tube front section 8111, and is connected to the patient's internal environment at the top of the drainage tube front section 8111, so that the guide wire can be extended into the internal environment through the guide channel 81101, and can also be used to drain the accumulated fluid in the body to the outside.

[0307] In the present invention, in order to ensure that the fixing body 8121 firmly fixes the drainage tube body 811, the fixing surface 812102 can be integrally formed with the outer tube 8115 of the drainage tube body 811. In addition, the drainage tube body 811 and the fixing body 8121 can also be manufactured separately using a separate structure. For example, by providing corresponding adhesive lines on the circumference of the tube passage 81210, the fixing body 8121 can be fixed by adhering to the drainage tube body 811. Alternatively, a tubular adhesive layer can be provided on the outer portion of the drainage tube body 811 connected to the fixing body 8121, and the fixing body 8121 can be adhered to the outer tube 8115 and the fixing surface 812102, thereby fixing the drainage tube body 811.

[0308] In this embodiment, the adhesive surface 812101 is a soft adhesive layer, the fixed surface 812102 is a hard retaining layer, and a movable surface 812103 is arranged on the outside of the adhesive surface 812101, that is, the adhesive surface 812101 is located between the fixed surface 812102 and the movable surface 812103, and the movable surface 812103 is detachably combined with the adhesive surface 812101. By peeling off the movable surface 812103 to expose the adhesive surface 812101, the sticky adhesive surface 812101 can be repeatedly and detachably adhered to the patient's skin multiple times.

[0309] The adhesive surface 812101 and the fixed surface 812102 each have a corresponding through hole, together forming the tube passage 81210. The adhesive surface 812101 and the fixed surface 812102 can be manufactured in one piece, or they can be manufactured in layers and then further fixed together by hot pressing or gluing. In this embodiment, the movable surface 812103 is a two-piece structure, located on either side of the tube passage 81210. In this way, when the movable surface 812103 is peeled off, it will not touch the drainage tube body 811, and will not affect the fixation of the drainage tube body 811 in the predetermined position in the body.

[0310] Optionally, the fixed body 8121 is implemented as a regular image such as a circle, rectangle, ellipse, triangle, trapezoid, square, diamond, ring, or an irregular shape. The fixed body 8121 is only used as an example and does not limit the content and scope of the degradable drainage tube 810.

[0311] As shown in Figures 29 to 36, the connecting unit 822 is detachably mounted on the connecting body 8122 so that the fistula bag 820 is detachably connected to the drainage tube 810, and the drainage tube body 811 of the drainage tube 810 is connected to the containing body 8212 of the fistula bag 810.

[0312] Preferably, the connecting body 8122 is an annular structure and surrounds the end of the drainage tube rear section 8112 of the drainage tube body 811, but the shape is not limited and can be a circular ring, a square ring, an elliptical ring, etc. The hardness of the connecting body 8122 is greater than the hardness of the fixing surface 812102 of the fixed body 8121. On the one hand, it can bear the weight of the liquid contained in the fistula bag 820. On the other hand, the connecting body 8122 can disperse the force from the fistula bag 820, reducing the pulling of the fistula bag 820 and the liquid contained on the patient's wound, which is conducive to relieving pain. For example, but not limited to, the connecting body 8122 is fixed to the fixed body 8121 by hot pressing or gluing. That is, the connecting body 8122 and the fixed body 8121 can be manufactured as a single piece, or they can be manufactured separately using a split structure and then further connected.

[0313] In this embodiment, the connecting body 8122 and the connecting unit 822 are connected by threading. Specifically, an internal thread 8221 is provided on the inner side of a base 8222 of the connecting unit 822, and an external thread 81221 is provided on the outer side of the connecting body 8122 to match the internal thread 8221, so that the fistula bag 820 and the drainage tube 810 are detachably connected.

[0314] In addition, the connecting body 8122 and the connecting unit 822 can also be connected by sleeve connection or adhesion.

[0315] The connecting body 8122 also includes a connecting base 81222, which is arranged at the bottom of the connecting body 8122, wherein the connecting base 81222 is firmly connected to the fixing surface 812101. The two can be manufactured as one piece or in layers and then further fixed by gluing or hot pressing.

[0316] In addition, in a modified implementation of this preferred embodiment, the connecting body 8122 and the connecting unit 822 can be detachably connected by means of a raised buckle connection, a pressed buckle connection, a rotating buckle connection or an adhesive connection.

[0317] The connecting body 8122 has a connecting cavity 81220 that communicates with the tube passage 81210. That is, after the drainage tube 810 passes through the tube passage 81210, the distal end of the drainage tube rear section 8112 is located in the connecting cavity 81220, i.e., the distal end of the drainage tube rear section 8122 protrudes from the fixing surface 812101. When the fistula bag 820 is connected to the drainage tube 810, the connecting cavity 81220 communicates with the fluid inlet 8211, allowing the fluid in the drainage tube body 811 to enter the containing body 8212.

[0318] After drainage is completed, the fistula bag 820 is removed for the convenience of the patient's movement, exposing the distal end of the drainage tube rear section 8112. Therefore, a modification of the above embodiment is made, as shown in FIG33 , in which a sealing unit 830 is detachably connected to the drainage tube body 811 to seal the guide channel 81201 and the fluid channel 81202.

[0319] The sealing unit 830 includes an extension body 831 and a sealing body 832. The extension body 831 is made of a flexible material and has a predetermined length. It is connected between the fixed body 8121 and the sealing body 832, allowing the sealing body 832 to removably seal the drainage tube body 811. The sealing body 831 is in the shape of a cap and matches the end of the drainage tube body 811. It can be sleeved onto the drainage tube body 811 protruding from the fixed surface 812101, so that the end of the drainage tube body 811 is wrapped in the sealing body 832. When drainage or the establishment of a secondary surgical channel is required, the sealing body 832 can be separated from the drainage tube body 811 to perform the corresponding medical procedure.

[0320] Corresponding improvements may also be made so that the sealing body 832 is plugged into the end portion of the safety tube rear section 8112 like a plug, thereby sealing the drainage tube body 811 .

[0321] The extending body 831 and the fixing body 8121 can be made in one piece, that is, the fixing body 8121 extends to the sealing body 832. In addition, the two can also be connected by hot pressing or gluing, as long as they are firmly connected.

[0322] In another embodiment of the present invention, as shown in Figures 37 to 40 , the ostomy device includes a drainage tube 810 and an ostomy bag 820A, wherein the drainage tube 810 and the ostomy bag 820A are detachably connected. Based on the above embodiment, the connection between the ostomy bag 820A and the drainage tube 810 is improved accordingly.

[0323] The ostomy bag 820A includes a containing unit 821A and a connecting unit 822A. The containing unit 821A includes a containing body 8212A and a fluid inlet 8211A, which are identical to the containing body 8212 and fluid inlet 8211 of the containing unit 821 in the above embodiment. The connecting unit 822A is disposed at the fluid inlet 8211A of the containing unit 821A. The connecting unit 822A includes four engaging members 8221A and a connecting member 8222A. The engaging members 8221A are spaced apart from each other and are disposed at the fluid inlet 8211A.

[0324] The drainage tube 810 includes a fixing unit 812A, and the fixing unit 812A includes a fixing body 8121A and a connecting body 8122A, wherein the connecting body 8122A is arranged on the fixing body 8121A. The fixing body 8121A is the same as the fixing body 8121 in the above embodiment, and is arranged on the rear section 8112 of the drainage tube, and the drainage tube 810 is fixed to a predetermined position on the patient's body by gluing.

[0325] In this embodiment, the connecting body 8122A includes a connecting base 81222A and a snap-fit ​​portion 81221A, the snap-fit ​​portion 81221A is arranged on the connecting base 81222A, and the connecting base 81222A is arranged on the fixed body 8121A, wherein the snap-fit ​​portion 81221A matches the snap-fit ​​member 8221A so that the snap-fit ​​member 8221A can be detachably snapped onto the snap-fit ​​portion 81221A, so that the fistula bag 820A can be detachably connected to the drainage tube 810.

[0326] The connecting body 8122A further has a connecting cavity 81220A, which is connected to both the guide channel 81101 and the fluid channel 81102. The engaging portion 81221A extends upward along the connecting base 81221A, forming the connecting cavity 81220A between the engaging portion 81221A and the connecting base 81221A. When the fistula bag 820A is connected to the drainage tube 810, the engaging member 8221A engages with the engaging portion 81221A, connecting the connecting cavity 81220A to the fluid inlet 8211A, thereby allowing the fluid within the drainage tube body 811 to enter the containing body 8212A.

[0327] The fistula bag 820A and the drainage tube 810 are detachably connected by snapping, which is convenient for connection and disassembly. When drainage is not required, the fistula bag 820A is removed and sealed using a sealing unit 830A included in the fistula device to prevent foreign matter from entering the body.

[0328] The sealing unit 830A includes an extension body 831A and a sealing body 832A. The extension body 831A is made of a flexible material and has a predetermined length. It is connected between the fixed body 8121A and the sealing body 832A, allowing the sealing body 832A to removably seal the drainage tube body 811. The sealing body 831A is shaped like a cap and matches the end of the drainage tube body 811. It can be sleeved onto the drainage tube body 811 protruding from the fixed body 8121A, so that the end of the drainage tube body 811 is enclosed in the sealing body 832A. When drainage or the establishment of a secondary surgical channel is required, the sealing body 832A can be separated from the drainage tube body 811 to perform the corresponding medical procedure.

[0329] In an embodiment of the present invention, the stabilizing section 8113 has an inflation cavity 811301, an inflation channel 811302 and an inflation port 811303. The inflation cavity 811301 is connected to the inflation channel 811302, and the inflation port 811303 is located at the upper end of the inflation channel 811302 and is connected to the inflation channel 811302. That is to say, the inflation cavity 811301 and the inflation port 811303 are respectively located at the two ends of the inflation channel 811302 and are connected to the inflation channel 811302.

[0330] According to a preferred embodiment of the present invention, as shown in FIG44 , the stabilizing section 8113 further includes a stabilizing body 81131 disposed within the outer tube 8115, with the inflation chamber 811301 located between the stabilizing body 81131 and the outer tube 8115. Specifically, the periphery of the stabilizing body 81131 is integrally formed with the outer tube 8115, or it can be manufactured in layers, connected to the outer tube 8115 by gluing or pressing. Both the stabilizing section and the outer tube 8115 are made of biodegradable materials. The inflation channel 811302 and the inflation port 811303 are both disposed within the outer tube 8115 and communicate with the inflation chamber 811301.

[0331] When the stabilizing body 81131 is in its natural state, i.e., in an uninflated state, it is flush with the outer tube 8115. In other words, the uninflated stabilizing body 81131 and the outer tube 8115 together form the outer structure of the drainage tube body 811. When the stabilizing body 81131 is inflated through the inflation port 811303 and the inflation channel 811302, gas is introduced into the inflation cavity 811301, causing the stabilizing body 81131 to be in an expanded state. At this point, the stabilizing body 81131 protrudes from the outer tube 815.

[0332] It is worth mentioning that the stabilizing section 8113 is located at the lower part of the connection between the fixing unit 812 and the drainage tube body 811. In this way, when the drainage tube body 811 is inserted into the patient's body, the stabilizing section 8113 is located in the patient's body. At this time, the stabilizing section 8113 is inflated to make it in an expanded state, which plays a certain blocking role and can prevent the drainage tube body 811 from easily slipping out of the body.

[0333] The above embodiment can also be modified, and the stabilizing section 8113 and the outer tube 8115 are integrally formed or manufactured separately and then connected, so that the inflation cavity 811301 is located inside the stabilizing body 81131, and the inflation channel 811302 and the inflation port 811303 are provided on the outer tube 8115 to inflate the inflation cavity 811301.

[0334] Specifically, the stabilizing section 8113 can be integrally formed with the outer tube 8115, that is, the periphery of the stabilizing body 81131 is integrally formed with the outer tube 8115, such that the air-filled cavity 811301 is located between the outer tube 8115 and the stabilizing body 81131. In other words, the stabilizing body 81131 is a part of the outer tube 8115, and the air-filled cavity 811301 is retained between the stabilizing body 81131 and the outer tube 8115. The stabilizing body 811301 can also have a double-layer structure, with the air-filled cavity 811301 formed inside the double-layer structure, and the periphery of the double-layer stabilizing body 811301 is integrally formed with the outer tube 8115, for example, by hot pressing or gluing. In addition, the stabilizing section 8113 and the outer tube 8115 may also be connected in other ways. For example, the stabilizing section 8113 is a separate structure that is affixed to the exterior of the outer tube 8115. The inflation cavity 811301 is surrounded by the stabilizing body 81131 and extends upward to form the inflation channel 811302 for inflating the inflation cavity 811301. The separate stabilizing section 8113 does not affect the insertion of the drainage tube body 811. Therefore, the connection method between the stabilizing section 8113 and the outer tube 8115 is only an example and is not limited to the above connection method.

[0335] According to another embodiment of the present invention, as shown in Figure 45, the stabilizing section 8113B passes through the outer tube 8115B and connects to the inner tube 8116B, wherein the outer tube 8115B, the inner tube 8116B, and the stabilizing section 8113B are layered, the inflation cavity 811301B is located within the stabilizing section 8113B or between the stabilizing section 8113B and the inner tube 8116B, and the inflation channel 811302B and the inflation port 811303B are both provided in the inner tube 8116B to inflate the inflation cavity 811301B. When the stabilizing section 8113B is not inflated, the stabilizing section 8113B is flush with the outer tube 8115B. When inflated, the stabilizing section 8113B protrudes from the outer tube 8115B.

[0336] It is worth mentioning that, as shown in Figures 34 and 35, the outer tube 8115, the inner tube 8116, and the stabilizing body 81131 are manufactured in layers, wherein the outer tube 8115, the inner tube 8116, and the stabilizing body 81131 are made of different materials. The outer tube 8115 is made of a relatively easily degradable material, while the inner tube 8116 and the stabilizing body 81131 are made of a material that degrades slowly or does not degrade easily. Thus, in an in vivo environment, the outer tube 8115 and the reinforcing ribs 8117 degrade preferentially, while the inner tube 8116 and the stabilizing body 81131 degrade slowly or do not degrade at all, thereby facilitating the construction of a secondary surgical channel.

[0337] Specifically, after the outer tube 8115 preferentially degrades, the inner tube 8116 and the stabilizing body 81131 remain, still providing drainage and guidance. Furthermore, the expanded stabilizing section 8113 effectively prevents the inner tube 8116 from slipping out of the body. Therefore, the doctor can observe the patient's internal condition through the guide channel 81101 of the inner tube 8116. If the condition worsens, a secondary surgical access can be established through the guide channel 81101, preventing secondary damage to the wound site and creating new wounds. This reduces pain for the patient and facilitates recovery.

[0338] In this case, if the inner tube 8116 and the stabilizing body 81131 are made of a slowly degradable material, they do not need to be removed after surgery; they only need to degrade within the body. If the outer tube 8116 and the stabilizing body 81131 are made of a non-degradable material, drainage is not necessary. The inner tube 8116 and the stabilizing body 81131 can be removed after the inflation chamber 811301 is deflated as needed.

[0339] In another case, the stabilizing body 81131 is made of the same degradable material as the outer tube 8115, and the inner tube 8116 is made of a non-degradable material, then only the inner tube 8116 needs to be removed.

[0340] In addition, the inner tube 8115 and the outer tube 8116 can also be made of the same material. As shown in Figures 35 and 36, the inner tube 8115 and the outer tube 8116 degrade at the same time, or the outer tube 8115 degrades first and the inner tube 8116 degrades slowly. Ultimately, there is no need to remove the tube, which reduces the patient's pain.

[0341] In the present invention, the outer tube 8115 and the inner tube 8116 can be connected in an integral manner or in a layered manner. Figures 41 to 43 illustrate three such methods.

[0342] As shown in Figure 41, according to one embodiment of the present invention, the outer tube 8115C and the inner tube 8116C are connected by multiple reinforcing ribs 8117C. Specifically, four fluid channels 81102C and four fluid outlets 81104C are formed at intervals between the outer tube 8115C, the reinforcing ribs 8117C, and the inner tube 8116C. The guide channel 81101C is located in the middle of the inner tube 8116C, and the inflation channel 811302C is located within the reinforcing rib 8117C or within the outer tube 8115C. The location is not restricted, as long as it can communicate with the inflation cavity 811301C. The inflation port 811303C, the fluid outlet 81104C, and the guide inlet 81105C are all spaced apart at the end of the drainage tube rear section 8112C.

[0343] In the present invention, the outer tube 8115C, the inner tube 8116C and the reinforcing rib 8117C are suitable for integral molding or layered manufacturing, wherein the fluid channel 81102C is located between the outer tube 8115C, the inner tube 8116C and the reinforcing rib 8117C.

[0344] As shown in Figure 814, according to one embodiment of the present invention, the outer tube 8115D and the inner tube 8116D can be integrally formed. Specifically, the outer tube 8115D is formed with two fluid channels 81102D and two fluid outlets 81104D spaced apart. The guide channel 81101D is located in the middle of the inner tube 8116D. The inflation channel 811302D is located in the outer tube 8115D, and its location is not restricted, as long as it can communicate with the inflation cavity 811301D. The inflation port 811303D, the fluid outlet 81104D, and the guide inlet 81105D are all located at the end of the drainage tube rear section 8112D.

[0345] As shown in Figure 43, according to one embodiment of the present invention, the outer tube 8115E and the inner tube 8116E are manufactured as one piece, that is, the outer tube 8115E and the inner tube 8116E together form a tube body 8118E, and a guide channel 81101E, a fluid channel 81102E, a fluid outlet 81104E and a guide inlet 81105E are arranged at intervals on the 8118E, so that the guide channel 81101E and the guide inlet 81105E are connected, and the fluid channel 81102E and the fluid outlet 81104E are connected. An inflation channel 811302E and an inflation port 811303E connected to the inflation channel 811302E are provided on the tube body 8118E, wherein the inflation port 811303E, the fluid outlet 81104E and the guide inlet 81105E are all located at the terminal end of the rear section 8112E of the drainage end.

[0346] According to one embodiment of the present invention, the outer tube 8115, the inner tube 8116, the reinforcing ribs 8117, and the stabilizing body 81131 are integrally formed, wherein the outer tube 8115, the inner tube 8116, and the stabilizing body 81131 are made of the same degradable material. In vivo, the outer tube 8115 and the inner tube 8116 are exposed to similar in vivo environments. Therefore, the outer tube 8115 and the inner tube 8116 degrade approximately simultaneously, or the inner tube 8116 degrades slightly slower. Furthermore, when the guide channel 81101 is not functioning as a drainage device, the inner tube 8116 is less exposed to the in vivo environment, while the outer tube 8115 and the stabilizing body 81131 are more exposed. Consequently, the outer tube 8115 degrades before the inner tube 8116, and after the outer tube 8116 degrades, the inner tube 8116 degrades more slowly.

[0347] In the present invention, the degradable material used to manufacture the drainage tube 810 can be selected from natural polymer materials such as gelatin, cellulose, heparin, chitin, silk, starch, chitosan, alginate, chitin, hyaluronic acid derivatives, natural polyesters, etc. Synthetic polymer materials such as polyorthoesters, polyglycolic acid, polylactic acid, polylactic-co-glycolic acid, fatty polyesters, and polycaprolactone can also be used. The degradation products are non-toxic and have no side effects. They can be absorbed and metabolized by the matrix or decompose and disappear on their own, and are harmless to the human body.

[0348] It is worth mentioning that, as shown in Figures 34 to 36, in the present invention, the outer tube 815, the inner tube 816, the reinforcing ribs 817 and the stabilizing body 8131 have a certain expansion effect when they are degraded. During the expansion process, they will have a certain compression effect on the skin at the wound location of the human body, which is more conducive to hemostasis and easier to degrade.

[0349] During the use of the external drainage container tool, when drainage is not needed, the fistula bag 820 can be removed from the drainage tube 810, so that the drainage tube 810 is left in the patient's body and retained for drainage, hemostasis or construction of a secondary surgical channel until the patient recovers.

[0350] After the portion of the drainage tube 810 located inside the patient's body degrades, the portion located outside the patient's body falls off on its own. Alternatively, when the portion inside the body is partially degraded or is about to be completely degraded, or when the patient's wound gradually heals as the drainage tube 810 degrades, the portion outside the body can be cut off in advance, allowing the portion inside the body to continue to degrade, which will not affect the healing and recovery of the patient's wound.

[0351] In some embodiments of the present invention, the externally connectable fixing unit 812 and the drainage tube body 811 are an integrated structure, and the two are fixedly connected, that is, the distance from the top of the drainage tube front section 8111 of the drainage tube body 811 to the adhesive surface 812101 of the fixed body 8121 is fixed and is not allowed to be adjusted, that is, the length of the drainage tube body 811 extending into the patient's body is fixed and is not allowed to be adjusted.

[0352] In other words, the fixing body 8121 is integrally formed with the outer tube of the drainage tube body 811. When the drainage tube 810 is not needed for drainage, medical staff can observe the healing of the surgical site through the fluid channel 81102 and the fluid outlet 81104. If the outer tube 8115 degrades, medical staff can also observe the condition of the surgical site through the guide channel 81101 and the guide inlet 81105. If the healing is not good, a secondary surgical channel can be established through the guide channel 81101 and the guide inlet 81105, eliminating the need for a secondary incision for surgery and alleviating the patient's pain.

[0353] Because the portion of the drainage tube 810 that remains outside the patient's body is relatively short, the tube less obstructs the doctor's field of vision when observing the recovery of the surgical site through the tube, allowing the doctor to clearly observe the recovery of the surgical site. If the recovery is good, the tube will dissolve on its own, eliminating the need for removal.

[0354] In these embodiments, the stabilizing section 8113 may not be provided, and the drainage tube body 811 may be firmly fixed in the patient's body through the adhesion between the fixing body 8121 and the skin.

[0355] In various embodiments of the present invention, when the fistula bag 820 is connected to the drainage tube 810, the connecting unit 822 of the fistula bag 820 is connected to the connecting body 8122 of the fixing unit 812 of the drainage tube 810, so that the fluid outlet 81104, the guide inlet 81105 and the inflation port 811303 are all connected to the containing body 8212 through the fluid inlet 8211, thereby draining the accumulated fluid to the fistula bag 820.

[0356] Those skilled in the art will appreciate that the embodiments of the present invention described above and shown in the accompanying drawings are intended to be illustrative only and are not intended to limit the present invention. The objectives of the present invention have been fully and effectively achieved. The functional and structural principles of the present invention have been demonstrated and illustrated in the embodiments. Any variations or modifications may be made to the embodiments of the present invention without departing from the principles described.

Claims

1. A surgical support tube, characterized in that: include: a support pipe having a guide channel, a guide inlet at a first end of the support pipe, and a guide outlet at a second end, the guide inlet and the guide outlet respectively communicating with the guide channel, the support pipe having a normal state and an expanded state, wherein the support pipe has a first outer diameter in the normal state and a second outer diameter in the expanded state, the first outer diameter being smaller than the second outer diameter, and the support pipe absorbs liquid in the normal state and changes to the expanded state, so that the support pipe can absorb liquid and change from the normal state to the expanded state after being placed in a surgical channel of a human body; and A fixing member is connected to the first end portion of the supporting pipe, and the fixing member has a fixing surface for being fixed to the surface of the human body. 2 . The surgical support tube according to claim 1 , wherein the support tube comprises a degradable material, so that the support tube can be placed in a surgical channel of a human body while the guide channel remains for a period of time. 3 . The surgical support tube according to claim 2 , wherein a tube wall thickness of the support tube decreases from the first end portion to the second end portion.

4. The surgical support tube according to claim 1, wherein the support tube comprises an inner tube and an outer tube, the outer tube and the inner tube are arranged in layers, the inner tube forms the guide channel, and both the inner tube and the outer tube are made of degradable materials. 5 . The surgical support tube according to claim 4 , wherein the support tube further comprises a barrier layer, wherein the barrier layer is disposed between the outer tube and the inner tube. 6 . The support tube for surgery according to claim 5 , wherein a barrier cavity is formed between the outer tube and the inner tube, and the inner wall of the outer tube, the barrier cavity, and the outer wall of the inner tube form the barrier layer. 7 . The support tube for surgery according to claim 5 , wherein the barrier layer comprises a barrier material, and the barrier material is filled between the outer tube and the inner tube.

8. The surgical support tube according to claim 1, wherein the support tube comprises an inner tube and an outer tube, the outer tube is located outside the inner tube, the inner tube forms the guide channel, the outer tube is made of a degradable material, and the inner tube is made of a non-degradable material.

9. The surgical support tube according to claim 1, wherein the support tube comprises an inner tube and an outer tube, the outer tube is located outside the inner tube, the inner tube forms the guide channel, and the outer tube has the normal state and the expanded state. 10 . The support tube for surgery according to claim 1 , wherein an outer wall of the support tube comprises a hemostatic material.

11. The surgical support tube according to any one of claims 1 to 9, wherein the fixing member comprises a fixing portion and a closing portion, the fixing portion being integrally connected to the support pipe, the fixing portion having a through hole, the through hole being communicated with the guide inlet of the guide channel, the closing portion being arranged on the fixing portion in a manner capable of closing the through hole, the fixing portion having the fixing surface, the closing portion having a column, the column being installed in the through hole of the fixing portion by interference fit, the fixing member further comprising a connecting portion, the connecting portion being movably connected between the fixing portion and the closing portion, wherein the closing portion is screwed to the fixing portion.

12. The surgical support tube according to any one of claims 1 to 9, wherein the fixing member comprises a fixing portion and a closing portion, the fixing portion having a through hole, the first end portion of the support pipe passing through the through hole of the fixing portion, the closing portion being arranged on the fixing portion in a manner capable of closing the guide inlet, and the fixing portion having the fixing surface.

13. The surgical support tube according to any one of claims 1 to 9, wherein the fixing member comprises a fixing portion and a connecting portion, the connecting portion being movably and integrally connected between the first end portion of the support pipe and the fixing portion, the fixing member having an open state and a closed state, wherein in the open state, the guide inlet of the support pipe is connected to the outside, and in the closed state, the fixing portion closes the guide inlet, and the fixing portion has the fixing surface so that the fixing surface is fixed to the surface of the human body in the closed state.

14. The surgical support tube according to claim 13, wherein the fixing portion has a groove, the size of the groove is larger than the size of the first end portion of the support tube, and the groove and the fixing surface are located on the same side, so that when the fixing surface is fixed to the human body surface, the opening of the groove is closed by the human body surface to form a closed cavity, so that the first end portion of the support tube is enclosed in the closed cavity.

15. A support tube for surgery, characterized in that: include: a support pipe having a guide channel, a guide inlet at a first end of the support pipe, and a guide outlet at a second end, the guide inlet and the guide outlet respectively communicating with the guide channel, the support pipe comprising a degradable material to facilitate placement of the support pipe in a human surgical channel while retaining the guide channel for a period of time; and A fixing member is connected to the first end portion of the supporting pipe, and the fixing member has a fixing surface for being fixed to the surface of the human body.

16. A surgical safety tube, suitable for insertion into a patient's body, characterized in that: include: an internal portion having a head section, a middle section, and a tail section, wherein the head section and the tail section are respectively located at two ends of the middle section, and the internal portion further has an observation channel communicating with the head section, the middle section, and the tail section; The head section is adapted to penetrate into the patient's body along a fistula tract, and the fluid in the patient's body can be discharged along the observation channel; The internal part has a contracted state and an expanded state, and can be transformed from the contracted state to the expanded state after the internal part comes into contact with the liquid in the fistula.

17. The safety tube for surgery according to claim 16, wherein the internal part comprises an inner core and an outer shell, the inner core surrounds and forms the observation channel, the outer shell is wrapped around the outside of the inner core, and the outer shell expands after contacting the liquid in the fistula tract, and the internal part is transformed from the contracted state to the expanded state.

18. The safety tube for surgery according to claim 17, wherein the outer shell comprises a hemostatic sponge.

19. The safety tube for surgery according to claim 17, wherein the outer shell is made of a degradable material and has a plurality of pores, and blood in the fistula tract can enter the pores in the outer shell, causing the outer shell to expand, and the internal part is transformed from the contracted state to the expanded state.

20. The safety tube for surgery according to claim 19, wherein the inner core is made of a degradable material.

21. The safety tube for surgery according to claim 20, wherein the inner core has a plurality of pores, blood in the fistula tract can enter the pores in the inner core to cause the inner core to swell, and the porosity of the inner core is lower than that of the outer shell.

22. The safety tube for surgery according to any one of claims 16 to 21, wherein the head section of the internal body portion has a natural state and a guided state, wherein the head section is bent in the natural state and is substantially straight in the guided state.

23. The safety tube for surgery according to claim 22, wherein the head section comprises a head section pipe, the end of the head section pipe away from the tail section has a distal opening connected to the observation channel; the side wall of the head section pipe also has a plurality of side openings connected to the observation channel.

24. The surgical safety tube according to claim 22, wherein the side wall of the head section has a plurality of drainage grooves; The middle section has a middle channel; The tail section has a tail channel; Several of the gravitational grooves are respectively connected to the middle channel, and the middle channel is also connected to the tail channel. Several of the gravitational grooves, the middle channel and the tail channel are connected to form the observation channel.

25. The safety tube for surgery according to claim 24, wherein the head section comprises an intermediate guide tube and a plurality of drainage plates, one end of each of the drainage plates is connected to the intermediate guide tube, and the other end extends away from the intermediate guide tube, and the drainage groove is formed between adjacent drainage plates. 26 . The safety tube for surgery according to claim 25 , wherein the middle guide tube has a guide channel, the guide channel being communicated with the middle channel for a guide wire to pass through.

27. The safety tube for surgery according to claim 25, wherein the head section further comprises a plurality of protective plates, wherein the protective plates are mounted on an end of the drainage plate away from the middle guide tube, and a gap is provided between adjacent protective plates, wherein the gap is connected to the drainage groove.

28. A surgical safety tube, suitable for insertion into a patient's body, characterized in that: include: an internal portion having a head section, a middle section, and a tail section, wherein the head section and the tail section are respectively located at two ends of the middle section, and the internal portion further has an observation channel communicating with the head section, the middle section, and the tail section; The head section is adapted to penetrate into the patient's body along a fistula tract, and the fluid in the patient's body can be discharged along the observation channel; The internal part has a contracted state and an expanded state, and the internal part can be transformed from the contracted state to the expanded state after contacting the liquid in the fistula; as well as An external part is connected to the tail section, and the external part is suitable for being fixed outside the patient's body.

29. The safety tube for surgery according to claim 28, wherein the external portion comprises a fixing plate, the fixing plate being adapted to be connected to the tail section, and the fixing plate being further adapted to be fixedly mounted outside the patient's body to fix the tail section.

30. The safety tube for surgery according to claim 29, wherein the fixing plate comprises a connecting portion and an adhesive portion, the adhesive portion being adapted to be attached to the outside of the patient's body, and the connecting portion being integrally connected to the tail section; The tail section has a tail opening communicating with the observation channel; The external portion further comprises a sealing plug adapted to be installed in the observation channel through the tail opening.

31. A fistula device, characterized in that include: A drainage tube, wherein the drainage tube includes a drainage tube body and a fixing unit, the drainage tube body including a drainage tube front section and a drainage tube rear section connected to the drainage tube front section, the drainage tube body having a guide channel, at least one fluid channel and at least one fluid groove connected to the fluid channel, wherein the fluid groove is provided in the drainage tube front section, the guide channel and each fluid channel extend from the drainage tube rear section to the drainage tube front section, and the fixing unit includes a fixing body and a connecting body, the fixing body being connected to the drainage tube rear section and the connecting body; and An ostomy bag comprises a containing unit, a connecting unit and a fluid inlet, wherein the fluid inlet is arranged on the containing unit, and the connecting unit is arranged on the containing unit at the fluid inlet, and the connecting unit is detachably connected to the connecting body, so that the ostomy bag and the drainage tube are detachably connected, so that the fluid drained from the drainage tube enters the containing unit through the fluid inlet.

32. The fistula device according to claim 31, wherein the drainage tube body comprises an inner tube, an outer tube and at least one reinforcing rib, the outer tube surrounds the outside of the inner tube and is connected to the inner tube through the reinforcing rib, and each fluid channel is located between the outer tube, the inner tube and the reinforcing rib.

33. The fistula device according to claim 31, wherein the drainage tube body comprises an inner tube, an outer tube and at least one reinforcing rib, the outer tube surrounds the outside of the inner tube and is connected to the inner tube through the reinforcing rib, and each of the fluid channels is arranged at intervals on the outer tube.

34. The fistula device according to claim 32, wherein the outer tube, the inner tube and the reinforcing ribs are manufactured in layers and then connected by hot pressing.

35. The fistula device according to claim 33, wherein the outer tube, the inner tube and the reinforcing rib are manufactured in one piece.

36. The fistula device according to claim 31, wherein the drainage tube body comprises an inner tube and an outer tube, the outer tube is connected to the outer side of the inner tube, and the inner tube and the outer tube are integrally formed.

37. The fistula device according to any one of claims 32 to 36, wherein the drainage tube body further comprises a stabilizing section, the stabilizing section being arranged at the connection between the front section of the drainage tube and the rear section of the drainage tube, the stabilizing section having an inflation cavity and an inflation channel communicating with the inflation cavity.

38. The fistula device according to claim 37, wherein the stabilizing section comprises a stabilizing body, the peripheral edge of the stabilizing body is connected to the outer tube, the inflation cavity is located between the outer tube and the stabilizing body, and the inflation channel is provided in the outer tube.

39. The fistula device according to claim 37, wherein the stabilizing section comprises a stabilizing body, a bottom of the stabilizing body is connected to the outer tube, the inflation cavity is located inside the stabilizing body, and the inflation channel is provided in the outer tube.

40. The fistula device according to claim 37, wherein the stabilizing section comprises a stabilizing body, the stabilizing body is connected to the inner tube, the inflation cavity is located between the inner tube and the stabilizing body, and the inflation channel is provided in the inner tube.

41. The fistula device according to claim 38, wherein the outer tube, the inner tube and the stabilizing body are all made of degradable materials.

42. The fistula device according to claim 39, wherein the outer tube, the inner tube and the stabilizing body are all made of degradable materials.

43. The fistula device according to claim 40, wherein the outer tube and the stable body are both made of degradable materials, and the inner tube is made of non-degradable material.

44. A fistula device, characterized in that include: A drainage tube, wherein the drainage tube includes a drainage tube body and a fixing unit, the drainage tube body including a drainage tube front section and a drainage tube rear section connected to the drainage tube front section, the drainage tube body having a guide channel, at least one fluid channel and at least one fluid groove connected to the fluid channel, wherein the fluid groove is provided in the drainage tube front section, the guide channel and each fluid channel extend from the drainage tube rear section to the drainage tube front section, and the fixing unit includes a fixing body and a connecting body, the fixing body being connected to the drainage tube rear section and the connecting body; and An ostomy bag comprises a containing unit, a connecting unit, and a fluid inlet. The fluid inlet is provided in the containing unit, and the connecting unit is provided in the containing unit at the fluid inlet. The connecting unit is detachably connected to the connecting body, so that the ostomy bag and the drainage tube are detachably connected, so that the fluid drained from the drainage tube enters the containing unit through the fluid inlet. The drainage tube body is made of a degradable material.

45. The fistula device according to claim 44, wherein the drainage tube body further has at least one fluid outlet and one guide inlet, wherein each fluid outlet is connected to each fluid channel, and the guide inlet is connected to the guide channel, and each fluid outlet and the guide inlet are arranged at intervals at the terminal end of the rear section of the drainage tube.

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