Puncture device for thoracic surgery

Abstract

The invention relates to the technical field of surgical instruments, in particular to a thoracic surgery puncture device which comprises a puncture guide part and a thoracic duct, the thoracic duct is slidably arranged in the puncture guide part and comprises a flexible duct body, a first elastic framework and a second elastic framework, the two ends of the flexible duct body are communicated with each other, and a ring is defined by the first elastic framework in the circumferential direction; and the first elastic framework is coaxially embedded in the peripheral wall of the flexible pipe body. The thoracic duct is arranged, when the thoracic duct provided by the invention is used for puncture intervention, only the puncture guide piece and the thoracic duct need to be intervened into the body of a patient once, while in the prior art, the puncture guide piece, the guide wire and the thoracic duct need to be sequentially intervened, so that the intervention times of the guide piece during a puncture operation are reduced; the operation steps are relatively simple, wound expansion of the patient caused by misoperation is not prone to occurring, and postoperative recovery of the patient is facilitated.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of surgical instruments, in particular to a puncture device for thoracic surgery. BACKGROUND

[0002] Pneumothorax refers to the abnormal accumulation of gas in the chest cavity, causing partial or complete collapse of the lung. The surgical treatment method of pneumothorax is usually to remove the effusion and other substances in the chest cavity through puncture intervention to help the lung recover normal inflation.

[0003] When performing thoracentesis, the second intercostal space of the midclavicular line or the fourth to fifth intercostal space of the anterior axillary line is usually selected as the puncture point, then the selected area is disinfected with iodine solution and covered with a sterile cloth, then a puncture needle is inserted into the patient's pleural cavity. For small pneumothorax, a fine needle can be used for puncture and drainage. For larger pneumothorax, a thicker chest tube needs to be left in the patient's body. During the operation, a two-centimeter incision is first made at the marked point, then a long puncture needle is inserted through the incision and into the pleural cavity. After confirming that the tip of the puncture needle reaches the inside of the pleural cavity, a flexible guide wire is introduced along the puncture needle. Next, the puncture needle is removed from the patient's body, leaving a flexible guide wire as a guide. Next, a dilator that gradually increases in size is used to dilate the subcutaneous tissue along the flexible guide wire until the dilated subcutaneous tissue can easily insert the chest tube. Next, the chest tube is slowly and smoothly inserted into the pleural cavity along the guide wire. Finally, the guide wire is removed from the patient's body, leaving only the chest tube left in the patient's body. In this way, the chest tube is inserted into the patient's pleural cavity. Next, the incision around the incision is sutured and the nursing tape is pasted. However, this form of pneumothorax surgical intervention has certain inconvenience in clinical practice: the operation steps are complex and need to be intervened in the patient's pleural cavity in sequence with the puncture needle, flexible guide wire and chest tube, which is easy to cause the patient's wound to expand due to improper operation, and is not conducive to the patient's recovery after operation. SUMMARY

[0004] Therefore, it is necessary to provide a puncture device for thoracic surgery to solve the problem of the existing puncture device for thoracic surgery that is complicated and complex to use, and is easy to cause the patient's wound to expand due to improper operation.

[0005] The above-mentioned purpose is achieved by the following technical solutions: A puncture device for thoracic surgery, comprising: a puncture guide; a chest tube slidingly arranged in the puncture guide; The chest tube comprises a flexible tube body, a first elastic framework and a second elastic framework. Two ends of the flexible tube body are in communication with each other. The first elastic framework is circumferentially surrounded to form a ring, and the first elastic framework is coaxially embedded in the peripheral wall of the flexible tube body and extends along the axis of the flexible tube body. The second elastic framework has a plurality of second elastic frameworks which are circumferentially and equidistantly embedded in the peripheral wall of the flexible tube body around the axis of the flexible tube body, and the plurality of second elastic frameworks and the first elastic framework circumferentially surround to form a plurality of independent closed areas. The air holes are formed in the closed areas and extend along the axis of the flexible tube body. The air holes have a first state and a second state. When in the first state, the air holes are closed to make the first elastic framework and the second elastic framework circumferentially fold, and thus the flexible tube body is in a circumferentially gathered state. When in the second state, the air holes are open to make the first elastic framework and the second elastic framework circumferentially unfold, and thus the flexible tube body is in a circumferentially stretched state.

[0006] Preferably, the chest tube further comprises a rigid ring and an end connector. The rigid ring is arranged at one end of the flexible tube body, and the end connector is fixedly connected to the end of the rigid ring away from the flexible tube body. Both ends of the end connector are penetrated, and the end of the end connector away from the rigid ring is threadedly connected with a main screw cap. The inside of the end connector is provided with a rotation cavity which is in communication with the plurality of air holes one by one. The outside of the end connector is provided with a side connecting hole which is penetrated to the inside of the end connector and is in communication with the rotation cavity, and the other end of the side connecting hole is threadedly connected with a side screw cap.

[0007] Preferably, a plurality of drainage holes are circumferentially and equidistantly arranged at the end of the flexible tube body away from the end connector, and the plurality of drainage holes extend to penetrate the inner peripheral wall of the flexible tube body.

[0008] Preferably, the cross section of the second elastic framework is straight line shape, and a gap is arranged at the middle position of the side surface of the second elastic framework facing the first elastic framework.

[0009] Preferably, the cross section of the first elastic framework is regular hexagon shape, and when the first elastic framework and the second elastic framework are circumferentially unfolded, the closed areas circumferentially surrounded by the first elastic framework and the second elastic framework are in isosceles triangle shape.

[0010] Preferably, the cross section of the first elastic framework is circular shape, and when the first elastic framework and the second elastic framework are circumferentially unfolded, the closed areas circumferentially surrounded by the first elastic framework and the second elastic framework are in arc shape.

[0011] Preferably, the cross section of the first elastic framework is petal shape, and when the first elastic framework and the second elastic framework are circumferentially unfolded, the closed areas circumferentially surrounded by the first elastic framework and the second elastic framework are in arc shape.

[0012] Preferably, the cross-section of the second elastic skeleton is arc-shaped, and the center of the arc is close to the center of the flexible tube. The second elastic skeleton has a notch in the middle of one side facing the first elastic skeleton.

[0013] Preferably, the cross-section of the first elastic skeleton is circular, and when the first elastic skeleton and the second elastic skeleton are circumferentially unfolded, the closed area enclosed by the first elastic skeleton and the second elastic skeleton in the circumferential direction is crescent-shaped.

[0014] Preferably, the puncture guide includes a puncture needle, a three-way connector, and a syringe. The main access port of the three-way connector is connected to the puncture needle, one of the side access ports of the three-way connector is connected to the injection port of the syringe, and the other side access port of the three-way connector is threaded with a sterile cap.

[0015] The beneficial effects of this invention are: This invention incorporates a chest tube. When performing puncture and intervention using the chest tube provided by this invention, only one puncture guide and one chest tube need to be inserted into the patient's body. In contrast, existing technologies require the sequential insertion of the puncture guide, guide suture, and chest tube. Therefore, this invention reduces the number of times the guide needs to be inserted during puncture surgery, making the operation steps relatively simple. It also reduces the risk of wound expansion due to improper operation, which is beneficial for the patient's postoperative recovery. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of an overall puncture device for thoracic surgery according to the present invention; Figure 2 for Figure 1 Sectional view of AA; Figure 3 This is a schematic diagram of the flexible tube in the circumferentially converged state of a puncture device for thoracic surgery according to the present invention. Figure 4 for Figure 3 A magnified schematic diagram of the structure at point B in the middle; Figure 5 This is a schematic cross-sectional view of the flexible tube in the circumferentially converged state of a puncture device for thoracic surgery according to the present invention. Figure 6 for Figure 5 A magnified schematic diagram of the structure at point C; Figure 7 This is a schematic diagram of the flexible tube in the circumferentially extended state of a thoracic surgical puncture device of the present invention. Figure 8 for Figure 7 A magnified schematic diagram of the structure at point D; Figure 9A cross-sectional view of a flexible tube body, a rigid ring and an end joint in a thoracic surgery puncture device according to the present application; Figure 10 A cross-sectional view of a flexible tube body, a rigid ring and an end joint in a thoracic surgery puncture device according to the present application; Wherein: 100, puncture guide; 110, puncture needle; 120, tee joint; 130, syringe; 200, chest tube; 210, flexible tube body; 211, drainage hole; 220, first elastic skeleton; 230, second elastic skeleton; 231, gap; 240, closed area; 250, air hole; 260, rigid ring; 270, end joint; 271, main cap; 272, rotation cavity; 273, side connection hole; 274, side cap. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application is further described in detail below by examples and in conjunction with the drawings. It should be understood that the specific examples described herein are only used to explain the present application, and do not limit the present application.

[0018] The serial numbers of components in this paper, such as "first", "second", etc., are only used to distinguish the described objects, and do not have any order or technical meaning. And the "connection" and "coupling" in the present application, unless otherwise specified, include direct and indirect connection (coupling). In the description of the present application, it should be understood that the orientation or position relationship indicated by the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0019] In the present application, unless otherwise explicitly specified and limited, the first feature "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature "above", "over" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "under" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0020] As Figures 1 to 10As shown, a thoracic surgery puncture device includes a puncture guide 100 and a chest tube 200, the chest tube 200 is slidingly arranged in the puncture guide 100, the chest tube 200 includes a flexible tube body 210, a first elastic skeleton 220 and a second elastic skeleton 230, both ends of the flexible tube body 210 are communicated with each other, the first elastic skeleton 220 is circumferentially surrounded into a ring, and the first elastic skeleton 220 is coaxially embedded in the peripheral wall of the flexible tube body 210 and extends along the axis of the flexible tube body 210, the second elastic skeleton 230 has a plurality of second elastic skeletons 230, the plurality of second elastic skeletons 230 are equidistantly embedded in the peripheral wall of the flexible tube body 210 around the axis of the flexible tube body 210, and the plurality of second elastic skeletons 230 and the first elastic skeleton 220 are circumferentially surrounded into a plurality of independent closed areas 240, the closed area 240 is formed with an air hole 250, the air hole 250 extends along the axis of the flexible tube body 210, the air hole 250 has a first state and a second state, when in the first state, the air hole 250 is closed, so that the first elastic skeleton 220 and the second elastic skeleton 230 are circumferentially folded, and then the flexible tube body 210 is in a circumferentially gathered state, when in the second state, the air hole 250 is opened, so that the first elastic skeleton 220 and the second elastic skeleton 230 are circumferentially unfolded, and then the flexible tube body 210 is in a circumferentially stretched state.

[0021] When performing a thoracentesis, after the doctor determines the puncture point, the selected area on the patient's body is disinfected and covered with a sterile cloth using iodine solution, then an incision is made on the patient's body, the puncture guide 100 is inserted into the patient's pleural cavity through the incision, after the puncture guide 100 is inserted into the patient's pleural cavity at the predetermined puncture position, the staff takes out the sterilely preserved chest tube 200, and processes the inside of the air hole 250 of the chest tube 200 to be negative pressure, so that the air hole 250 is in the first state. Because the air hole 250 is closed after being pumped to negative pressure, the first elastic framework 220 and the second elastic framework 230 are forced to fold circumferentially and deform, so that the flexible tube body 210 is in a circumferentially gathered state. Because the circumferentially folded flexible tube body 210 has a certain hardness, the folded flexible tube body 210 can smoothly slide into the patient's pleural cavity at the predetermined position along the puncture guide 100. After the flexible tube body 210 is inserted into the patient's pleural cavity at the predetermined puncture position from the inside of the puncture guide 100, the puncture guide 100 is removed from the patient's body, and only the chest tube 200 is left on the patient's body. Next, the doctor inflates the air hole 250, so that the air hole 250 gradually switches from the first state to the second state. At this time, the air hole 250 is open, so that the first elastic framework 220 and the second elastic framework 230 are circumferentially unfolded, and the flexible tube body 210 is in a circumferentially expanded state. Because the air hole 250 is open after being inflated, the volume of the flexible tube body 210 expands, and the cross-sectional area of the chest tube 200 increases, so that the outer peripheral wall of the flexible tube body 210 can be more closely attached to the wound on the patient's body, thereby preventing the effusion in the patient's body from overflowing through the gap between the flexible tube body 210 and the wound on the patient's body. In addition, at the position on the patient's body surface, because the wound is filled by the expanded flexible tube body 210, rather than in a relaxed state, when the patient's wound is sutured, the number of fixed knots necessary for suturing is less, which is beneficial to reduce the formation of scars.

[0022] It can be understood that, in the present application, when the flexible tube body 210 is inserted into the patient's body, the hardness of the flexible tube body 210 increases after being gathered in the circumferential direction by drawing negative pressure in the air hole 250, so that the flexible tube body 210 can be smoothly inserted into the patient's pleural cavity from the puncture guide 100 to the preset position, and when the effusion in the patient's pleural cavity is discharged outward, the air hole 250 is opened by inflating the air hole 250, so that the hardness of the flexible tube body 210 decreases after being stretched in the circumferential direction, and the flexibility increases, and the discomfort of the patient is reduced. At the same time, since the cross-sectional area of the central hole of the flexible tube body 210 becomes larger, the effusion in the patient's body can be smoothly discharged outward through the flexible tube body 210. Therefore, when the puncture intervention is performed by using the chest tube 200 provided by the present application, only one puncture guide 100 and one chest tube 200 need to be inserted into the patient's body, and in the prior art, the puncture guide 100, the guide wire and the chest tube 200 need to be sequentially inserted, so that the present application reduces the number of interventions of the guide during the puncture operation, and the operation steps are relatively simple, so that the patient's wound is not easily expanded due to improper operation, and the patient's recovery after the operation is facilitated.

[0023] It should be further pointed out that, in terms of material selection, the flexible tube body 210 can be made of biological silica gel material, and the first elastic framework 220 and the second elastic framework 230 can be made of elastic alloy material such as Nitinol.

[0024] In further embodiments, as shown in Figure 8 and Figure 9 The chest tube 200 further comprises a rigid ring 260 and an end connector 270, the rigid ring 260 is arranged at one end of the flexible tube body 210, the end connector 270 is fixedly connected with the end of the rigid ring 260 away from the flexible tube body 210, both ends of the end connector 270 are penetrated, and a main screw cap 271 is threadedly connected with the end of the end connector 270 away from the rigid ring 260, a rotary cavity 272 is arranged in the inside of the end connector 270, the rotary cavity 272 is in one-to-one correspondence with the plurality of air holes 250, a side connecting hole 273 is arranged on the outside of the end connector 270, one end of the side connecting hole 273 penetrates into the inside of the end connector 270 and is in communication with the rotary cavity 272, and a side screw cap 274 is threadedly connected with the other end of the side connecting hole 273.

[0025] In the initial state, the main screw cap 271 is threadedly connected on the end connector 270, and the side screw cap 274 is threadedly connected in the side connecting hole 273.

[0026] When the air hole 250 is under negative pressure, the worker rotates the side cap 274, and then connects one end of the catheter with the one-way valve in the side connecting hole 273, and connects the other end of the catheter to the air cylinder (or a thick syringe can be used instead), at this time, the one-way valve is configured to one-way limit external air entering the air hole 250 through the catheter, because the side connecting hole 273 is in communication with the air hole 250, so the air in the air hole 250 can be sucked into the rotary cavity 272 through the air cylinder, and then the air is sucked into the air cylinder through the side connecting hole 273 and the catheter, so that the air hole 250 is in a closed state, and then the worker removes the air cylinder from the catheter, at this time, under the one-way limiting action of the one-way valve, external air cannot enter the air hole 250 through the catheter, so the flexible tube body 210 can keep the state of being gathered circumferentially, so as to facilitate the intervention of the flexible tube body 210 into the patient's pleural cavity.

[0027] When the effusion is pumped, the air hole 250 needs to be inflated first, the worker pulls the catheter out of the side connecting hole 273, and then connects one end of the catheter to the side connecting hole 273 after reversing the positions of the two ends of the catheter, and finally connects the other end of the catheter to the air cylinder, at this time, the air cylinder is pulled outwards, and the air in the air cylinder is pressed into the air hole 250 through the one-way valve, so that the air hole 250 is in an open state, and then the medical staff rotates the main cap 271, and connects the bag opening of the effusion bag to the end connector 270, at this time, because the pressure in the patient's pleural cavity is greater than the pressure in the effusion bag, the effusion in the patient's pleural cavity naturally flows into the effusion bag.

[0028] In further embodiments, as shown in Figure 7 The flexible tube body 210 is provided with a plurality of drainage holes 211 at the end away from the end connector 270, and the plurality of drainage holes 211 extend through the inner circumferential wall of the flexible tube body 210.

[0029] The plurality of drainage holes 211 are provided circumferentially on the flexible tube body 210, so that the effusion in the patient's pleural cavity can be uniformly discharged, preventing the effusion in the local area of the patient's pleural cavity from being discharged while the effusion in other local areas is not discharged.

[0030] When more drainage holes 211 are blocked by impurities in the patient's pleural cavity, the flow rate of the effusion is reduced, at this time, the impurities in the drainage holes 211 can be squeezed out by alternately applying negative pressure and inflation to the air hole 250, so as to restore the normal flow rate.

[0031] It is to be noted that, during the contrast examination, the doctor can roughly estimate the amount of the effusion in the pleural cavity of the patient according to the shadow area in the pleural cavity of the patient. When the amount of the effusion discharged is obviously less than the estimated amount of the effusion, and the flow rate of the effusion discharged by the flexible tube body 210 is already very small at this time, it can be judged that the air hole 250 is possibly blocked by impurities.

[0032] In a further embodiment, as shown in Figure 10 the cross section of the second elastic framework 230 is linear, and the second elastic framework 230 is provided with an opening 231 at the middle position of the side surface thereof facing the first elastic framework 220.

[0033] It can be understood that the opening 231 is equivalent to artificially manufacturing a weak point at the middle position of the side surface of the second elastic framework 230 facing the first elastic framework 220, so that when negative pressure is drawn in the air hole 250, the second elastic framework 230 can fold and deform towards the center of the flexible tube body 210 with the weak point as the middle point of rotation.

[0034] It is to be noted that the cross section of the second elastic framework 230 is linear, which is suitable for the chest tube 200 with a relatively small diameter. Because the cross section of the second elastic framework 230 in the unfolded state is linear, the chest tube 200 is not easy to deform under stress, so as to better prevent the gap between the flexible tube body 210 and the wound of the patient, so as to prevent the effusion from overflowing.

[0035] In a further embodiment, the cross section of the second elastic framework 230 is arc-shaped, and the center of the arc is close to the center of the flexible tube body 210, and the second elastic framework 230 is provided with an opening 231 at the middle position of the side surface thereof facing the first elastic framework 220.

[0036] Similarly, the opening 231 in the present embodiment is also equivalent to artificially manufacturing a weak point at the middle position of the side surface of the second elastic framework 230 facing the first elastic framework 220, so as to facilitate the folding and deformation of the second elastic framework 230 towards the center of the flexible tube body 210.

[0037] It is to be noted that the second elastic framework 230 with the arc-shaped cross section is more likely to fold and deform under stress than the second elastic framework 230 with the arc-shaped cross section. Similarly, because the chest tube 200 with a larger diameter has a larger expansion amount, even if the second elastic framework 230 accidentally deforms under stress, it is not easy to cause a gap between the chest tube 200 and the wound of the patient.

[0038] In a further embodiment, the cross-section of the first elastic skeleton 220 is a regular hexagon. When the first elastic skeleton 220 and the second elastic skeleton 230 are circumferentially unfolded, the closed area 240 formed by the first elastic skeleton 220 and the second elastic skeleton 230 is an isosceles triangle.

[0039] This embodiment is applicable to chest tubes 200 with smaller diameters. Since the closed area 240 formed by the first elastic skeleton 220 and the second elastic skeleton 230 is an isosceles triangle, the support stability is better, thus better preventing gaps from appearing between the chest tube 200 and the patient's wound.

[0040] In a further embodiment, the cross-section of the first elastic skeleton 220 is arc-shaped, and when the first elastic skeleton 220 and the second elastic skeleton 230 are circumferentially unfolded, the closed area 240 formed by the first elastic skeleton 220 and the second elastic skeleton 230 is bow-shaped.

[0041] It is understood that this embodiment is applicable to chest tubes 200 with a medium diameter. The arc-shaped closed area 240 is formed by connecting a second elastic skeleton 230 with a straight cross-section and a first elastic skeleton 220 with a circular arc cross-section. Since the support stability and deformation capacity of the arc-shaped structure are moderate, it is suitable for chest tubes 200 with a medium diameter.

[0042] In a further embodiment, the cross-section of the first elastic skeleton 220 is circular, and when the first elastic skeleton 220 and the second elastic skeleton 230 are circumferentially unfolded, the closed area 240 formed by the first elastic skeleton 220 and the second elastic skeleton 230 is crescent-shaped.

[0043] It is understood that this embodiment is applicable to chest tubes 200 with a larger diameter. The crescent-shaped closed area 240 is formed by connecting a second elastic skeleton 230 with a circular arc cross-section and a first elastic skeleton 220 with a circular arc cross-section. Since the first elastic skeleton 220 and the second elastic skeleton 230 with a circular arc cross-section have better deformation capabilities, they can better cope with the larger deformation of the chest tube 200 with a larger diameter.

[0044] In a further embodiment, such as Figure 1 As shown, the puncture guide 100 includes a puncture needle 110, a three-way connector 120, and a syringe 130. The main access port of the three-way connector 120 is connected to the puncture needle 110, one of the side access ports of the three-way connector 120 is connected to the injection port of the syringe 130, and another side access port of the three-way connector 120 is threaded with a sterile cap.

[0045] When the thoracic puncture is performed, the doctor, after determining the puncture point, disinfects the selected area with iodine solution and covers it with a sterile drape, then makes an incision, inserts the puncture needle 110 into the patient's body through the incision, and when the tip of the puncture needle 110 has been inserted into the pleural cavity, the staff member draws the effusion outwards through the syringe 130, and observes whether the effusion can flow into the syringe 130 through the puncture needle 110 and the three-way joint 120 in turn. If the light yellow effusion can be observed to flow smoothly into the syringe 130, it means that the tip of the puncture needle 110 has been inserted into the preset position in the pleural cavity. If not, the position of the tip of the puncture needle 110 is adjusted slightly until the light yellow effusion can be observed to flow into the syringe 130 when the syringe 130 is drawn.

[0046] After the puncture needle 110 is inserted into the preset position in the pleural cavity of the patient, the flexible tube body 210 needs to be inserted into the pleural cavity of the patient next. At this time, the doctor unscrews the sterile cover from the other side branch port of the three-way joint 120, then inserts the end of the flexible tube body 210, which is provided with the drainage hole 211, into the three-way joint 120, and pushes the flexible tube body 210 inwards, so that the flexible tube body 210 is inserted into the pleural cavity of the patient through the three-way joint 120 and the puncture needle 110 in turn.

[0047] It can be understood that the insertion depth of the flexible tube body 210 is slightly greater than the insertion depth of the puncture needle 110, so that the tip of the flexible tube body 210 is clamped in the pleural cavity of the patient. In this way, when the puncture needle 110 is taken out of the patient's body, the flexible tube body 210 can remain unchanged in its insertion position, and the drainage hole 211 is provided on the outer peripheral surface of the flexible tube body 210 rather than the end of the flexible tube body 210, which is also adapted to the position of the tip when the puncture needle 110 is inserted, so that the effusion can flow out smoothly through the drainage hole 211.

[0048] The technical features of the above embodiments can be combined in any manner. To make the description concise, not all possible combinations of the technical features in the above embodiments are described, but as long as the combinations of the technical features do not exist contradictions, they should be considered as the scope of the present disclosure.

[0049] The above embodiments only express several implementation manners of the present disclosure, and the description is relatively specific and detailed, but it should not be understood as a limitation on the scope of the present disclosure. It should be pointed out that, for ordinary skilled persons in the art, several modifications and improvements can be made without departing from the concept of the present disclosure, and these all belong to the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the appended claims.

Claims

1. A puncture device for thoracic surgery, characterized in that, include: Puncture guide; The chest tube is slidably positioned within the puncture guide. The chest tube includes a flexible tube body, a first elastic skeleton, and a second elastic skeleton. The two ends of the flexible tube body are connected to each other. The first elastic skeleton forms a ring around the circumference and is coaxially embedded in the circumferential wall of the flexible tube body. The first elastic skeleton extends along the axis of the flexible tube body. There are multiple second elastic skeletons. The multiple second elastic skeletons are embedded in the circumferential wall of the flexible tube body at equal intervals around the axis of the flexible tube body. The multiple second elastic skeletons and the first elastic skeleton form multiple independent closed areas around the circumference. Air holes are formed in the closed areas and extend along the axis of the flexible tube body. Stomata have a first state and a second state; In the first state, the pores are closed, so that the first elastic skeleton and the second elastic skeleton are circumferentially folded, thereby making the flexible tube body in a circumferentially gathered state. In the second state, the pores open, allowing the first and second elastic skeletons to expand circumferentially, thereby allowing the flexible tube to be in a circumferentially extended state.

2. The thoracic surgical puncture device according to claim 1, characterized in that, The chest tube also includes a rigid ring and an end connector. The rigid ring is located at one end of the flexible tube body. The end connector is fixedly connected to the end of the rigid ring away from the flexible tube body. Both ends of the end connector are open, and the end of the end connector away from the rigid ring is threaded with a main rotating cap. The end connector has a rotating cavity inside, which is connected to multiple air holes one by one. The end connector has a side connecting hole on the outside. One end of the side connecting hole extends into the end connector and is connected to the rotating cavity. The other end of the side connecting hole is threaded with a side rotating cap.

3. The thoracic surgical puncture device according to claim 2, characterized in that, The flexible tube has multiple drainage holes spaced at equal intervals around its end away from the end joint, and these drainage holes extend to penetrate the inner circumferential wall of the flexible tube.

4. The thoracic surgical puncture device according to claim 1, characterized in that, The second elastic skeleton has a straight cross-section, and a notch is provided in the middle of one side of the second elastic skeleton facing the first elastic skeleton.

5. A thoracic surgical puncture device according to claim 4, characterized in that, The cross-section of the first elastic skeleton is a regular hexagon. When the first elastic skeleton and the second elastic skeleton are unfolded circumferentially, the closed area enclosed by the first elastic skeleton and the second elastic skeleton is an isosceles triangle.

6. The thoracic surgical puncture device according to claim 4, characterized in that, The first elastic skeleton has a circular cross-section. When the first elastic skeleton and the second elastic skeleton are unfolded circumferentially, the closed area enclosed by the first elastic skeleton and the second elastic skeleton is arc-shaped.

7. The thoracic surgical puncture device according to claim 4, characterized in that, The cross-section of the first elastic skeleton is petal-shaped. When the first elastic skeleton and the second elastic skeleton are circumferentially unfolded, the closed area enclosed by the first elastic skeleton and the second elastic skeleton is arc-shaped.

8. A thoracic surgical puncture device according to claim 1, characterized in that, The second elastic skeleton has an arc-shaped cross-section, and the center of the arc is close to the center of the flexible tube. The second elastic skeleton has a notch in the middle of one side facing the first elastic skeleton.

9. A thoracic surgical puncture device according to claim 8, characterized in that, The cross-section of the first elastic skeleton is circular. When the first elastic skeleton and the second elastic skeleton are unfolded circumferentially, the closed area enclosed by the first elastic skeleton and the second elastic skeleton is crescent-shaped.

10. A thoracic surgical puncture device according to claim 1, characterized in that, The puncture guide includes a puncture needle, a three-way connector, and a syringe. The main access port of the three-way connector is connected to the puncture needle, one of the side access ports of the three-way connector is connected to the injection port of the syringe, and the other side access port of the three-way connector is threaded with a sterile cap.

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