Combined anoscope for irrigation, drainage, suture and compression hemostasis

Abstract

This invention discloses a combined anoscope for irrigation, drainage, suturing, and compression hemostasis, comprising a hollow cylindrical tube. A piston head is fixedly fitted inside the tube near its smooth, curved end. A hollow tube is formed within the piston head along the axial direction of the tube, creating a cavity between the piston head and the hollow tube. A drainage tube extending to the outside of the tube is connected to the bottom of the cavity. A connecting rod is slidably mounted inside the hollow tube. An arc-shaped plate, which covers the piston head and forms a hemispherical structure with it, is fixedly connected to the top of the connecting rod. The arc-shaped plate can move axially along the hollow tube towards the smooth, curved end of the tube to open the piston head and connect the rectum to the cavity of the piston head. This invention enables simultaneous insertion of the anoscope tube and drainage tube, flexible hemostasis of the wound, prevention of drainage tube dislodgement, and convenient disassembly. It solves the problems of traditional anoscopes having limited functionality and the risk of wound damage from repeated instrument insertion and removal, reducing the risk of anorectal tissue damage and improving diagnostic and treatment efficiency and patient tolerance.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to a combined anoscope for irrigation, drainage, suturing, compression, and hemostasis. Background Technology

[0002] An anoscope is the most commonly used basic diagnostic and treatment instrument in colorectal surgery. Its front end is arc-shaped, and a piston head slides inside the barrel. When using an anoscope for examination, the doctor first pushes the piston completely into the barrel, inserting it into the anus in a compact cylindrical shape to reduce the contact area. After the endoscope is inserted to the designated depth, the piston is slowly pulled out, creating a hollow observation space inside the barrel to provide a field of view for subsequent endoscopic observation.

[0003] With the advancement of anorectal surgery techniques, more and more surgical procedures are being performed through the anus. Due to the unique anal anatomy, the entire surgical area is covered with varicose veins and has an extremely rich arterial blood supply. At the same time, the anal sphincter makes it difficult to expose the surgical field. In addition, fecal matter remains in the proximal rectum, and blood can flow back into the rectum after bleeding during anal surgery. This leads to three major challenges in clinical practice: First, bleeding is extremely common after anal surgery. The bleeding rate varies from 3% to 10% depending on the technical level of different hospitals. This makes postoperative bleeding after anal surgery one of the most common situations in the emergency department. Furthermore, it is difficult to predict which surgery will result in bleeding, and this randomness puts a lot of psychological pressure on the surgeons. Secondly, once bleeding occurs, the local anatomy of the anus makes it difficult to expose the surgical field. Furthermore, the presence of residual fecal matter and blood in the intestinal lumen further affects the observation of the surgical field and the surgical procedure. In addition, most bleeding is combined with active arterial bleeding; in a confined space, it is extremely difficult to accurately suture and stop the bleeding if the active bleeding is not controlled. Therefore, most clinicians choose gauze packing for compression to stop the bleeding in the most challenging situation of postoperative anal bleeding. This method requires continuous, indiscriminate compression of the anal area for more than 8 hours, causing great pain to the patient. Moreover, the gauze packing compression prevents the patient from passing gas and stool, further aggravating the patient's pain and making it impossible to observe whether there is further bleeding. In extreme cases, further bleeding may occur in the proximal anal canal, with blood flowing into the rectum, which the patient cannot expel, leading to delayed detection, shock, and further complications. Third, some patients may experience chronic bleeding due to local wound erosion, inflammation, and edema. In such cases, the tissue conditions are poor, making suturing for hemostasis unsuitable. Often, only intermittent light pressure is needed for hemostasis. When using traditional gauze for hemostasis, indiscriminate pressure can only be applied. During the pressure process, the pressure cannot be continuously reduced to alleviate the patient's pain and tissue ischemia. Furthermore, the friction and stimulation of the wound by the gauze during gauze removal may cause secondary bleeding. Simple gauze pressure also has the problems of not being able to expel or defecate, and not being able to drain and observe. On the other hand, simply leaving a drainage tube is difficult to achieve the purpose of wound pressure hemostasis. In addition, traditional drainage tubes are difficult to fix and are prone to falling off.

[0004] Traditional anoscopes have an open tip. After insertion into the rectum, fecal matter and blood stored in the rectum flow out through the inner wall of the endoscope, inevitably affecting the doctor's observation. For patients with postoperative bleeding from anal diseases, the active bleeding affects the field of vision, making endoscopic suturing and hemostasis difficult. In clinical practice, after completing examinations and suturing procedures for anorectal diseases, patients with extensive erosion and bleeding wounds often require further compression treatment of the wound. Simultaneously, a drainage tube needs to be placed in the anal canal and rectum to monitor for further bleeding, assist the patient in passing gas and stool, avoid abdominal distension and pain, and prevent fecal matter from irritating the fresh wound during recovery, reducing contamination and alleviating local pain. Currently, there is a lack of a simple device that can both provide drainage and compressive hemostasis. Furthermore, repeated insertion and removal of different instruments can irritate the sutured wound and even cause secondary bleeding, especially in patients with anal stenosis or severe inflammation, where the risk of injury is higher, increasing postoperative pain and the incidence of complications. Current anoscopes only have the single function of cavity dilation and basic observation, which is far behind the progress of anorectal surgery techniques. Summary of the Invention

[0005] In order to solve the technical problems existing in the prior art, the present invention provides a combined anoscope for irrigation, drainage, suturing, compression and hemostasis.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a combined anoscope for irrigation, drainage, suturing, and compression hemostasis, comprising a hollow cylindrical tube, one end of which is a smooth arc-shaped end, and the other end of which is integrally formed with a handle.

[0007] A piston head is fixedly fitted inside the end of the endpiece near the smooth arc. A hollow tube is formed inside the piston head along the axial direction of the endpiece. A cavity is formed between the piston head and the hollow tube. A drain pipe extending to the outside of the endpiece is connected to the bottom of the cavity.

[0008] A connecting rod is slidably installed inside the hollow tube. An arc-shaped plate is fixedly connected to the top of the connecting rod, which covers the piston head and cooperates with the piston head to form a hemispherical structure. The arc-shaped plate can move along the axial direction of the hollow tube toward the smooth arc end of the end tube to open the piston head and connect the rectum to the cavity of the piston head. A control rod extending to the outside of the end tube is connected to the bottom of the connecting rod.

[0009] The outer wall of the endoscope tube is provided with a groove along its axial direction, and a drainage tube is filled in the groove. The drainage tube is inserted into the anal canal synchronously with the endoscope tube.

[0010] Preferably, a limiting slip ring is sleeved on the outside of the endoscope tube, which can rotate relative to the endoscope tube and slide along its axial direction. The limiting slip ring has a notch that matches the outer diameter of the drainage tube. Two limiting plates are fixedly connected to the outer wall of the drainage tube, and the distance between the two limiting plates matches the width of the limiting slip ring.

[0011] Preferably, the outer wall of the drainage tube is annularly fitted with a first airbag and a second airbag, the length of the first airbag covering the inner wall of the anal canal, and the second airbag is located at the front end of the drainage tube; a cleaning nozzle is connected to the front end of the drainage tube.

[0012] Preferably, the drainage tube has four channels extending along its axial direction, namely a drainage channel, a first inflation channel, a second inflation channel, and a flushing channel;

[0013] The drainage channel runs through the entire drainage tube along the center of the drainage tube. The first inflation channel is connected to the first airbag, the second inflation channel is connected to the second airbag, and the flushing channel is connected to the cleaning nozzle.

[0014] Preferably, the outer end of the drainage tube is rotatably connected to a connector, one end of which is respectively connected to a flushing head and an inflation head, and the other end is provided with a flushing hole, an inflation hole and a drainage docking hole;

[0015] The flushing hole is connected to the flushing head and the flushing channel and has an inner diameter that is compatible with them. The inflation hole is connected to the inflation head and has an inner diameter that is compatible with the first inflation channel and the second inflation channel. The drainage docking hole is connected to the drainage channel and has an inner diameter that is consistent with it.

[0016] Preferably, in the initial state, the flushing hole is aligned and connected to the flushing channel, and the air inlet is aligned and connected to the second air inlet channel;

[0017] The connector can rotate 90° relative to the drainage tube. After rotation, the inflation hole is aligned and connected with the first inflation channel, while the second inflation channel and the flushing channel are both blocked.

[0018] Preferably, the outer wall of the connector extends radially outward to form a convex ring, and the outer wall of the drainage tube is hinged with two pull rods, the bottom of which extends to the lower end face of the convex ring and engages with the convex ring.

[0019] In the initial state, the two pull rods are located on the line connecting the second inflation channel and the flushing channel. The outer wall of the connector has two protrusions fixed. The protrusions can rotate with the connector and contact the pull rods to lift the pull rods, so that the connector is separated from the drainage tube.

[0020] Preferably, the outer wall of the lens tube has a suturing window, and the edges of the suturing window are rounded and chamfered.

[0021] Preferably, a guide block is fixed inside the lens barrel near the outer end, and the operating lever passes through the guide block and slides in cooperation with the guide block;

[0022] The drain pipes are distributed close to the inner wall of the endoscope tube, and a guide block is fixed inside the endoscope tube at the position corresponding to the drain pipes. The drain pipes are fixedly connected to the guide blocks.

[0023] The drain tube and the control lever are distributed at 180° intervals inside the endoscope tube, and the suture window is located between the drain tube and the control lever.

[0024] Compared with the prior art, the present invention provides a combined anoscope for irrigation, drainage, suturing, and compression hemostasis, which has the following beneficial effects:

[0025] (1) This application sets a hemispherical structure at the front end of the endoscope tube, in which the piston head and the arc plate cooperate. In the initial state, the arc plate fits the piston head, making the end of the endoscope tube into a smooth hemispherical shape, which greatly reduces the contact area with the anorectal mucosa when the endoscope is inserted. An independent cavity is formed between the piston head and the hollow tube and connected to the drainage tube. After the arc plate is opened, the secretions and excretions in the rectum can directly enter the independent cavity and be discharged to the outside of the endoscope tube through the drainage tube. This avoids the secretions from adhering to the inner wall of the endoscope tube and affecting the doctor's field of vision. There is no need to wipe the endoscope tube repeatedly during the operation, which improves the clarity and efficiency of the endoscopic operation.

[0026] (2) A slot is made on the outer wall of the endoscope tube and a limiting slip ring is used to simultaneously fix the drainage tube and the endoscope tube. The drainage tube can be inserted into the anal canal at one time along with the endoscope tube. After the suturing is completed, the endoscope tube and the drainage tube can be separated by rotating the limiting slip ring. After the endoscope tube is pulled out separately, the drainage tube can be left in the body directly. Compared with the traditional method of inserting the drainage tube separately after surgery, this completely avoids the contact and friction of the fresh sutured wound with the instrument after repeated insertion and removal, reduces the risk of wound tearing and bleeding, and reduces the patient's postoperative pain.

[0027] (3) The second balloon sleeved on the outer wall of the drainage tube can expand in the lower rectum. The closing action of the anal sphincter can prevent the drainage tube from falling off and avoid the drainage tube from shifting when the endoscope is pulled out. The first balloon can expand in the anal canal, and its length covers the entire inner wall of the anal canal. It can form a uniform and flexible pressure on the sutured wound of the inner wall of the anal canal to achieve hemostasis.

[0028] (4) The drainage tube has a drainage channel, a first inflation channel, a second inflation channel, and a flushing channel. Each channel corresponds to the functions of drainage, inflation of the first airbag, inflation of the second airbag, and flushing, respectively. The inflation channel can be precisely switched through a rotatable connector. In the initial state, the inflation hole is connected to the second inflation channel. After rotating 90°, it can be connected to the first inflation channel. During the switching process, the channels do not interfere with each other, and the airbags can be inflated and sealed in stages. When removing the drainage tube after surgery, you only need to continue to rotate the connector. The protrusion can lift the pull rod to quickly separate the connector from the drainage tube, so that the gas in the two airbags can be released quickly. Then the drainage tube can be gently pulled out of the body. The whole disassembly process is simple and short. Attached Figure Description

[0029] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention, but do not constitute a limitation thereof. In the drawings:

[0030] Figure 1 This is a schematic diagram of the entire combined anoscope in an embodiment of the present invention;

[0031] Figure 2 This is a schematic diagram of the entire combined anoscope from another angle in an embodiment of the present invention;

[0032] Figure 3 for Figure 2 A magnified schematic diagram of the local structure at point A;

[0033] Figure 4 This is a schematic diagram of the internal structure of the lens barrel in an embodiment of the present invention;

[0034] Figure 5 This is a schematic diagram of the structure at the bottom of the lens tube in an embodiment of the present invention;

[0035] Figure 6 This is a schematic diagram of the piston head arc plate in the open state in an embodiment of the present invention;

[0036] Figure 7 This is a front view of the drainage tube in an embodiment of the present invention;

[0037] Figure 8 This is a cross-sectional schematic diagram of the drainage tube in an embodiment of the present invention;

[0038] Figure 9 This is a schematic diagram of the connection between the connector and the drainage tube in an embodiment of the present invention;

[0039] Figure 10 This is a schematic diagram of the connector structure in an embodiment of the present invention.

[0040] In the diagram: 1. Endoscope tube; 2. Handle; 3. Drainage tube; 4. Suture window; 5. Limiting slip ring; 6. Control lever; 7. Slot; 8. Limiting plate; 9. Drainage tube; 10. Guide block; 11. Piston head; 12. Arc plate; 13. Connecting rod; 14. Hollow tube; 15. First airbag; 16. Second airbag; 17. Cleaning nozzle; 18. Connector; 19. Flushing head; 20. Inflation head; 21. Drainage channel; 22. First inflation channel; 23. Second inflation channel; 24. Flushing channel; 25. Pull rod; 26. Protruding ring; 27. Protrusion; 28. Flushing hole; 29. ​​Inflation hole; 30. Drainage docking hole. Detailed Implementation

[0041] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0042] This embodiment proposes a combined anoscope for irrigation, drainage, suturing, and compression hemostasis, such as... Figures 1-10 As shown, the scope includes a hollow cylindrical lens tube 1, one end of which is rounded and the other end is integrally formed with a handle 2. A piston head 11 is fixedly fitted inside the lens tube 1 near the rounded end. A hollow tube 14 is formed inside the piston head 11 along the axial direction of the lens tube 1. A cavity is formed between the piston head 11 and the hollow tube 14. A drain pipe 9 is connected to the bottom of the cavity and extends to the outside of the lens tube 1. A connecting rod 13 is slidably installed inside the hollow tube 14. An arc-shaped plate 12 is fixedly connected to the top of the connecting rod 13. The arc-shaped plate 12 covers the piston head 11 and cooperates with it to form a hemispherical structure.

[0043] In the initial state, the arc-shaped plate 12 fits against the piston head 11. When the endoscope 1 is inserted into the anal canal, the arc-shaped plate 12 reduces the contact area during insertion, minimizing scraping and tearing damage to the anorectal mucosa, allowing the endoscope 1 to enter the anal canal smoothly and gently. The bottom end of the connecting rod 13 is connected to the operating rod 6, which also extends downwards to the outside of the endoscope 1. After the entire front end of the endoscope 1 is inserted into the rectum, the operator can push the operating rod 6 upwards, causing the arc-shaped plate 12 to move upwards, opening the piston head 11. Excrement stored in the patient's rectum enters the cavity of the piston head 11 and is then discharged through the drainage tube 9, preventing excrement from contacting the inner wall of the endoscope 1 and thus affecting the doctor's field of vision. Furthermore, compared to traditional anoscopes, since the arc-shaped plate 12 in this application moves inwards to connect the rectal cavity with the outside, there is no need to pull the piston head 11 outwards, facilitating the doctor's operation.

[0044] Furthermore, traditional anoscopes merely dilate the anal canal for the doctor to observe, while the anoscope of this application has a suture window 4 on its outer wall. The edges of the suture window 4 are rounded and chamfered to avoid scratching the tissue. The position of the suture window 4 corresponds to the field of view inside the scope tube 1. In use, the scope tube 1 is first fully inserted to the junction of the anal canal and rectum for a comprehensive examination. After the examination, the position of the scope tube 1 is adjusted. By rotating the anoscope left and right and adjusting the depth of insertion, active bleeding points are exposed at the suture window 4. The edges of the suture window 4 are used to compress the tissue around the bleeding point to temporarily control the bleeding, thereby exposing the operating field. Then, the bleeding point is precisely sutured through the suture window 4 to achieve complete hemostasis.

[0045] In the above scheme, since the anoscope has an added suturing function, in order to ensure that the doctor has sufficient operating space during suturing, this embodiment further limits the position of the drainage tube 9 and the operating rod 6 inside the scope tube 1. Specifically, the drainage tube 9 is distributed close to the inner wall of the scope tube 1, and the operating rod 6, which is connected to the connecting rod 13, also bends towards the inner wall of the scope tube 1 and extends to its outside. Since the operating rod 6 moves along its axis inside the scope tube 1, in order to ensure the stability of the movement of the operating rod 6, this embodiment fixes a guide block 10 on the inner wall of the scope tube 1 near the outer end. The operating rod 6 passes through the guide block 10 and is slidably connected to it. Although the drainage tube 9 is in a fixed state, this embodiment also fixes the guide block 10 at a corresponding position inside the scope tube 1, and the drainage tube 9 is fixedly connected to the guide block 10. The drainage tube 9 and the operating rod 6 are distributed at a 180° interval inside the scope tube 1, and the suturing window 4 is distributed between the drainage tube 9 and the operating rod 6, thus providing sufficient space for suturing operations to the greatest extent.

[0046] After the patient completes the surgery, a drainage tube 3 needs to be inserted for intracavitary drainage and gas removal. Otherwise, the patient will feel abdominal bloating and discomfort. If the drainage tube 3 is reinserted from the outside of the anus at this time, the drainage tube 3 will inevitably come into contact with the suture surface, which will not only cause pain to the patient, but may also damage the suture surface. Therefore, in this embodiment, the drainage tube 3 and the endoscope 1 are inserted at the same time. After the doctor completes the suturing with the help of the endoscope 1, the drainage tube 3 is left in the anal canal and the endoscope 1 is removed.

[0047] Specifically, in this embodiment, a groove 7 is formed along the axial direction on the outer wall of the endoscope tube 1. The drainage tube 3 is inserted into the groove 7. To facilitate the synchronous insertion of the drainage tube 3 and the endoscope tube 1 into the anal canal, a limiting slip ring 5 is first fitted onto the outside of the endoscope tube 1. The limiting slip ring 5 can rotate relative to the endoscope tube 1 and can also slide along its axial direction. The limiting slip ring 5 also has a notch that matches the outer diameter of the drainage tube 3. Two limiting plates 8 are fixedly connected to the outer wall of the drainage tube 3. The distance between the two limiting plates 8 is the same as the width of the limiting slip ring 5. When the two limiting rings 5 ​​and the two limiting plates 8 are misaligned, the drainage tube 3 is held in place by the limiting ring 5. The front end of the drainage tube 3 is hidden inside the slot 7 and slowly inserted into the anal canal along with the endoscope tube 1. Because the drainage tube 3 is held in place by the limiting ring 5, it can move smoothly and synchronously with the endoscope tube 1. After the examination or suturing is completed, the limiting ring 5 is rotated so that its notch is aligned with the two limiting plates 8. At this time, the drainage tube 3 is separated from the endoscope tube 1, the endoscope tube 1 is pulled out, and the drainage tube 3 stays in the anal canal.

[0048] If the suture site is on the inner wall of the anal canal, then after the suture is completed, it is necessary to compress and support the suture site to prevent postoperative bleeding. Therefore, in this embodiment, a first airbag 15 is ring-shaped on the outer wall of the drainage tube 3. The length of the first airbag 15 can cover the entire outer wall of the anal canal. After the endoscope tube 1 is pulled out from the inside of the anal canal, gas is injected into the first airbag 15 to make it expand, thereby flexibly expanding the anal canal, compressing the wound, and achieving hemostasis.

[0049] The premise of the above solution is that when the endoscope tube 1 is pulled out from the anal canal, the drainage tube 3 can be kept stably in the anal canal, that is, the drainage tube 3 will not be moved out with the endoscope tube 1. In order to achieve this purpose, in this embodiment, a second air bladder 16 is ring-shaped on the front end of the drainage tube 3. When the endoscope tube 1 is inserted into the cavity of the lower rectum, the doctor can push the limiting slip ring 5 upward to drive the drainage tube 3 to continue to extend until the second air bladder 16 is completely entered into the cavity of the lower rectum. At this time, gas is injected into the second air bladder 16 to make it inflate. When the doctor completes the suturing of the wound and pulls the endoscope tube 1 outward, as the front end of the endoscope tube 1 gradually detaches from the anal canal, the anal canal in this area will close rapidly under the action of the anal sphincter. Then the closed part of the anal canal will lock the second air bladder 16, and the drainage tube 3 will not be pulled out with the endoscope tube 1.

[0050] In addition, if intestinal bleeding is found when the endoscope tube 1 and drainage tube 3 are first inserted into the lower rectum, it is necessary to clean the wound immediately. The wound can only be sutured after the cleaning is completed. Therefore, in this embodiment, a cleaning nozzle 17 is connected to the front end of the drainage tube 3. Once bleeding is found, external disinfectant is pumped into the cleaning nozzle 17 and sprayed out by the cleaning nozzle 17 for cleaning.

[0051] Given that the drainage tube 3 has the above-mentioned functions, this embodiment has four channels inside the drainage tube 3, namely, a drainage channel 21, a first inflation channel 22, a second inflation channel 23, and a flushing channel 24. The drainage channel 21 runs through the entire drainage tube 3 along its center. The first inflation channel 22 is connected to the first airbag 15, the second inflation channel 23 is connected to the second airbag 16, and the flushing channel 24 is connected to the cleaning nozzle 17. Furthermore, the outer end of the drainage tube 3... A rotatable connector 18 is provided. One end of the connector is connected to a flushing head 19 and an inflation head 20, respectively. The other end is provided with a flushing hole 28 connected to the flushing head 19, an inflation hole 29 connected to the inflation head 20, and a drainage docking hole 30 connected to the drainage channel 21. The flushing hole 28 has the same inner diameter as the flushing channel 24, the inflation hole 29 has the same diameter as the first inflation channel 22 and the second inflation channel 23, and the drainage docking hole 30 has the same inner diameter as the drainage channel 21.

[0052] Initially, the flushing port 28 is aligned and connected to the flushing channel 24, and the inflation port 29 and the second inflation channel 23 are aligned and connected. After the endoscope 1 and the drainage tube are inserted into the lower rectum, the limiting slip ring 5 is pushed upward to allow the second balloon 16 to fully enter the cavity of the lower rectum. The flushing head 19 is then connected to the external flushing device to clean the rectum. After the anal canal is sutured, the inflation head 20 is connected to the external inflation device to inflate the second balloon 16. Then, the operating lever 6 is pulled outward to withdraw the endoscope 1 from the anal canal. Pull out the tube, leaving the drainage tube 3 inside the anal canal. Then rotate the connector 18 90 degrees to align the inflation port 29 with the first inflation channel 22. At this time, the second inflation channel 23 is blocked, the second airbag 16 remains inflated, and the flushing channel 24 is also blocked due to misalignment. The external inflation device injects gas into the first airbag 15 through the first inflation channel 22 to inflate it. Then close the valve on the inflation head 20. The inflated first airbag 15 compresses the inner wall of the anal canal, thereby achieving hemostasis.

[0053] Once the patient's wound has fully healed, the drainage tube 3 needs to be removed from the body. To facilitate quick removal, this embodiment features a convex ring 26 extending radially outward on the outer wall of the connector 18, while two pull rods 25 are hinged to the outer wall of the drainage tube 3 (initially, the two pull rods 25 are positioned on the line connecting the second inflation channel 23 and the flushing channel 24). The bottom of the pull rods 25 extends to the lower end face of the convex ring 26 and engages with it. The connector 18 is firmly connected together through the cooperation of the pull rods 25 and the convex ring 26, ensuring relative rotation between them. When the drainage tube 3 needs to be removed, the gas inside the first airbag 15 and the second airbag 16 must first be released. Then, the connector 18 is rotated, and the two protrusions 27 fixed on the connector 18 contact the pull rods 25, thereby lifting the pull rods 25 and forcing the connector 18 to separate from the drainage tube 3. The gas inside the two airbags is quickly released, and the doctor can then slowly pull the drainage tube 3 out of the patient's body.

[0054] Of course, in order to ensure that the connector 18 remains stable in its initial position and after rotating 90 degrees, and also to ensure the unobstructed flow of the channel and the hole, a corresponding baffle can be installed on the drainage tube 3, and a force-applying plate can be connected to the connector 18. Both the baffle and the force-applying plate are made of plastic and the strength of the force-applying plate is greater than that of the baffle. When the connector 18 rotates, the force-applying plate acts on the first baffle and breaks it. When the connector 18 rotates to the point where the force-applying plate contacts the second baffle, it means that the connector 18 has rotated exactly 90 degrees. The connector 18 continues to rotate, and the force-applying plate breaks the second baffle, so that the protrusion 27 and the pull rod 25 can cooperate to separate the connector 18 from the drainage tube 3.

[0055] In the description of this invention, the terms "first," "second," "another," and "yet another" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of embodiments of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0056] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. Furthermore, in the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0057] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A combined anoscope for irrigation, drainage, suturing, and compression hemostasis, comprising a hollow cylindrical tube (1), one end of which is a smooth arc-shaped end, and the other end having an integrally formed handle (2), characterized in that: A piston head (11) is fixedly fitted inside the end of the lens tube (1) near the smooth arc end. A hollow tube (14) is formed inside the piston head (11) along the axial direction of the lens tube (1). A cavity is formed between the piston head (11) and the hollow tube (14). A drain pipe (9) extending to the outside of the lens tube (1) is connected to the bottom of the cavity. A connecting rod (13) is slidably installed inside the hollow tube (14). The top end of the connecting rod (13) is fixedly connected to an arc plate (12) that covers the piston head (11) and cooperates with the piston head (11) to form a hemispherical structure. The arc plate (12) can move along the axial direction of the hollow tube (14) toward the smooth arc end of the endpiece (1) to open the piston head (11) and connect the inside of the rectum with the cavity of the piston head (11). The bottom end of the connecting rod (13) is connected to an operating rod (6) that extends to the outside of the endpiece (1). The outer wall of the endoscope tube (1) is provided with a slot (7) along its axial direction. The slot (7) is filled with a drainage tube (3). The drainage tube (3) is inserted into the anal canal synchronously with the endoscope tube (1). The scope tube (1) is fitted with a limiting slip ring (5) that can rotate relative to the scope tube (1) and slide along its axial direction. The limiting slip ring (5) has a notch that matches the outer diameter of the drainage tube (3). Two limiting plates (8) are fixedly connected to the outer wall of the drainage tube (3). The distance between the two limiting plates (8) matches the width of the limiting slip ring (5).

2. The combined anoscope for irrigation, drainage, suture and compression hemostasis according to claim 1, characterized in that: The outer wall of the drainage tube (3) is circumferentially fitted with a first airbag (15) and a second airbag (16). The length of the first airbag (15) covers the inner wall of the anal canal, and the second airbag (16) is located at the front end of the drainage tube (3). The front end of the drainage tube (3) is connected to a cleaning nozzle (17).

3. The combined anoscope for irrigation, drainage, suture and compression hemostasis according to claim 2, characterized in that: The drainage tube (3) has four channels extending along its axial direction, namely the drainage channel (21), the first inflation channel (22), the second inflation channel (23), and the flushing channel (24). The drainage channel (21) runs through the entire drainage tube (3) along the center of the drainage tube (3), the first inflation channel (22) is connected to the first airbag (15), the second inflation channel (23) is connected to the second airbag (16), and the flushing channel (24) is connected to the cleaning nozzle (17).

4. The combined anoscope for irrigation, drainage, suture and compression hemostasis according to claim 3, characterized in that: The outer end of the drainage tube (3) is rotatably connected to a connector (18). One end of the connector (18) is connected to a flushing head (19) and an air inlet head (20), and the other end is provided with a flushing hole (28), an air inlet (29) and a drainage docking hole (30). The flushing hole (28) is connected to the flushing head (19) and the flushing channel (24) and the inner diameter is adapted. The inflation hole (29) is connected to the inflation head (20) and the diameter is adapted to the first inflation channel (22) and the second inflation channel (23). The drainage docking hole (30) is connected to the drainage channel (21) and the inner diameter is consistent.

5. The combined anoscope for irrigation, drainage, suture and compression hemostasis according to claim 4, characterized in that: In the initial state, the flushing hole (28) is aligned and connected with the flushing channel (24), and the inflation hole (29) is aligned and connected with the second inflation channel (23); The connector (18) can rotate 90° relative to the drainage tube (3). After rotation, the air hole (29) is aligned and connected with the first air channel (22), and the second air channel (23) and the flushing channel (24) are both in a blocked state.

6. The combined anoscope for irrigation, drainage, suture and compression hemostasis according to claim 5, characterized in that: The outer wall of the connector (18) extends radially outward to form a convex ring (26), and the outer wall of the drainage tube (3) is hinged with two pull rods (25). The bottom of the pull rods (25) extends to the lower end face of the convex ring (26) and engages with the convex ring (26). In the initial state, the two pull rods (25) are located on the line connecting the second inflation channel (23) and the flushing channel (24). The outer wall of the connector (18) is fixed with two protrusions (27). The protrusions (27) can rotate with the connector (18) and contact the pull rods (25) to lift the pull rods (25) so that the connector (18) is separated from the drainage tube (3).

7. The combined anoscope for irrigation, drainage, suture and compression hemostasis according to any of claims 1-6, characterized in that: The outer wall of the lens tube (1) is provided with a suturing window (4), and the edge of the suturing window (4) is rounded and chamfered.

8. The combined anoscope for irrigation, drainage, suture and compression hemostasis according to claim 7, characterized in that: A guide block (10) is fixed inside the lens barrel (1) near the outer end. The control lever (6) passes through the guide block (10) and slides with the guide block (10). The drain pipe (9) is distributed close to the inner wall of the lens tube (1), and a guide block (10) is fixed inside the lens tube (1) at the position corresponding to the drain pipe (9). The drain pipe (9) is fixedly connected to the guide block (10). The drain pipe (9) and the control lever (6) are distributed at 180° intervals inside the endoscope tube (1), and the suture window (4) is distributed between the drain pipe (9) and the control lever (6).

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