Puncture device for thoracic surgery

Abstract

The present application relates to surgical instrument technical field, especially a kind of puncture device for thoracic surgery, including puncture guide and chest tube, chest tube is slidably arranged in puncture guide, chest tube includes flexible tube body, first elastic skeleton and second elastic skeleton, two ends of flexible tube body are communicated, first elastic skeleton is circumferentially enclosed into ring, and first elastic skeleton is coaxially embedded in the peripheral wall of flexible tube body.The present application is provided with chest tube, when puncture intervention is carried out using the chest tube provided by the present application, only once puncture guide and once chest tube are needed to be intervened in the body of patient, and in the prior art, puncture guide, guide wire and chest tube need to be sequentially intervened, therefore, the present application reduces the intervention frequency of guide in puncture operation, and the operation steps are relatively simple, so that the wound of patient is not easy to expand due to improper operation, and it is beneficial to the recovery of patient after operation.

Description

Technical Field

[0001] This invention relates to the field of surgical instrument technology, and in particular to a puncture device for thoracic surgery. Background Technology

[0002] Pneumothorax occurs when air abnormally accumulates in the pleural cavity, causing partial or complete collapse of the lung. Surgical treatment for pneumothorax typically involves puncture and interventional procedures to drain fluid and other substances from the pleural cavity, helping the lung to return to normal expansion.

[0003] During thoracentesis, the puncture point is usually chosen at the second intercostal space along the midclavicular line or the fourth to fifth intercostal space along the anterior axillary line. The selected area is then disinfected with iodine solution and covered with a sterile drape. Next, the puncture needle is inserted into the patient's pleural cavity. For smaller pneumothoraxes, a fine needle can be used directly for aspiration. For larger pneumothoraxes, a thicker chest tube needs to be placed. Specifically, a two-centimeter incision is made at the marked point, and a thin, long puncture needle is inserted through the incision into the pleural cavity, ensuring the tip of the needle reaches the pleural cavity. After reaching the pleural cavity, a flexible guidewire is introduced along the puncture needle. The puncture needle is then removed from the patient's body, leaving the guidewire as a guide. Next, a gradually increasing dilator is used to expand the subcutaneous tissue along the guidewire until the subcutaneous tissue is sufficiently expanded to easily insert the chest tube. The chest tube is then slowly and steadily inserted into the pleural cavity along the guidewire. Finally, the guidewire is removed from the patient's body, leaving only the chest tube inside. The chest tube is then inserted into the patient's pleural cavity. The incision area is then sutured and a nursing dressing is applied. However, this type of interventional pneumothorax surgery has certain clinical drawbacks: the procedure is relatively cumbersome and complex, requiring the sequential insertion of the puncture needle, flexible guidewire, and chest tube into the pleural cavity. Improper operation can easily lead to wound expansion, which is detrimental to the patient's postoperative recovery. Summary of the Invention

[0004] Therefore, it is necessary to provide a thoracic surgical puncture device to address the problems of existing thoracic surgical puncture devices, which are cumbersome and complicated to use and prone to improper operation, leading to wound expansion in patients.

[0005] The above objectives are achieved through the following technical solutions: A thoracic surgical puncture device, comprising: 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.

[0006] Preferably, the chest tube further includes a rigid ring and an end connector. The rigid ring is disposed 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 connected, and the end of the end connector away from the rigid ring is threadedly connected to a main rotating cap. A rotating cavity is opened inside the end connector, and the rotating cavity is connected to multiple air holes one by one. A side connecting hole is provided on the outside of the end connector. One end of the side connecting hole penetrates into the interior of the end connector and is connected to the rotating cavity. The other end of the side connecting hole is threadedly connected to a side rotating cap.

[0007] Preferably, the flexible tube body has multiple drainage holes spaced at equal intervals around its end away from the end joint, and the multiple drainage holes extend to penetrate the inner circumferential wall of the flexible tube body.

[0008] Preferably, the cross-section of the second elastic skeleton is straight, and a notch is provided in the middle of one side of the second elastic skeleton facing the first elastic skeleton.

[0009] Preferably, the cross-section of the first elastic skeleton is a regular hexagon, 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 an isosceles triangle.

[0010] 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 arc-shaped.

[0011] Preferably, the cross-section of the first elastic skeleton is petal-shaped, 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 arc-shaped.

[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 9This is a cross-sectional view of the flexible tube, rigid ring, and end connector in a thoracic surgical puncture device of the present invention. Figure 10 This is a schematic cross-sectional view of the flexible tube in the circumferentially extended state of a thoracic surgical puncture device of the present invention. in: 100. Puncture guide; 110. Puncture needle; 120. T-connector; 130. Syringe; 200. Chest tube; 210. Flexible tube body; 211. Drainage hole; 220. First elastic skeleton; 230. Second elastic skeleton; 231. Notch; 240. Sealed area; 250. Air hole; 260. Rigid ring; 270. End connector; 271. Main rotating cap; 272. Rotating cavity; 273. Side connection hole; 274. Side rotating cap. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0018] The component designations used in this document, such as "first" and "second," are merely for distinguishing the described objects and do not have any sequential or technical meaning. The terms "connection" and "linkage" used in this invention, unless otherwise specified, include both direct and indirect connections (linkages). It should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are used only for the convenience of describing the invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the invention.

[0019] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0020] like Figures 1 to 10As shown, a thoracic surgical puncture device includes a puncture guide 100 and a chest tube 200. The chest tube 200 is slidably disposed within 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. The two ends of the flexible tube body 210 are interconnected. The first elastic skeleton 220 forms a ring around the circumference and is coaxially embedded within the peripheral wall of the flexible tube body 210, extending along the axis of the flexible tube body 210. Multiple second elastic skeletons 230 are circumferentially and equally spaced within the peripheral wall of the flexible tube body 210 around its axis. Multiple second elastic skeletons 230 and first elastic skeletons 220 circumferentially enclose multiple independent closed regions 240. Air holes 250 are formed within the closed regions 240. The air holes 250 extend along the axis of the flexible tube 210. The air holes 250 have a first state and a second state. In the first state, the air holes 250 are closed, so that the first elastic skeletons 220 and second elastic skeletons 230 are circumferentially folded, thereby causing the flexible tube 210 to be in a circumferentially gathered state. In the second state, the air holes 250 are open, so that the first elastic skeletons 220 and second elastic skeletons 230 are circumferentially unfolded, thereby causing the flexible tube 210 to be in a circumferentially extended state.

[0021] During thoracentesis, after determining the puncture site, the doctor disinfects the selected area on the patient with iodine solution and covers it with a sterile drape. An incision is then made, and the puncture guide 100 is inserted into the patient's pleural cavity. After the puncture guide 100 is inserted into the pre-set puncture site within the pleural cavity, the sterile chest tube 200 is removed. Negative pressure is applied to the vents 250 of the chest tube 200, placing them in their first state. Because the vents 250 close under negative pressure, the first elastic skeleton 220 and the second elastic skeleton 230 undergo circumferential folding deformation, causing the flexible tube 210 to circumferentially converge. Due to the inherent rigidity of the circumferentially folded flexible tube 210, it can smoothly slide into the patient's chest cavity along the puncture guide 100. At the pre-set puncture position within the pleural cavity, after the flexible tube 210 is inserted from inside the puncture guide 100 to the pre-set puncture position within the patient's pleural cavity, the puncture guide 100 is removed from the patient's body, leaving only the chest tube 200 in place. Next, the doctor inflates the vent 250, causing the vent 250 to gradually switch from a first state to a second state. At this time, the vent 250 opens, allowing the first elastic skeleton 220 and the second elastic skeleton 230 to expand circumferentially, thereby allowing the flexible tube 210 to be in a circumferentially extended state. Because the vent 250 opens after inflation, the volume of the flexible tube 210 expands, and the cross-sectional area of ​​the chest tube 200 increases. Therefore, the outer peripheral wall of the flexible tube 210 can fit more tightly with the wound on the patient's body, thereby preventing the fluid in the patient's body from leaking out through the gap between the flexible tube 210 and the wound on the patient's body. Furthermore, since the wound is filled by the expanded flexible tube 210 rather than in a relaxed state at the patient's body surface location, fewer fixation points are required when suturing the patient's wound, which helps to reduce scar formation.

[0022] Understandably, in this invention, when the flexible tube 210 is inserted into the patient's body, negative pressure is drawn into the air hole 250, causing the flexible tube 210 to circumferentially converge and increase in rigidity. Therefore, the flexible tube 210 can smoothly enter the patient's pleural cavity at a predetermined position from the puncture guide 100, like a guide thread. When draining the pleural effusion, air is inflated into the air hole 250, causing the air hole 250 to open. This causes the flexible tube 210 to circumferentially expand, reducing its rigidity and increasing its flexibility, thus reducing discomfort to the patient. At the same time, because the cross-sectional area of ​​the central aperture of the flexible tube 210 increases, the effusion in the patient's body can be smoothly drained out through the flexible tube 210. Therefore, when using the chest tube 200 provided by this invention for puncture and intervention, only one puncture guide 100 and one chest tube 200 need to be inserted into the patient's body. In contrast, the prior art requires the sequential insertion of the puncture guide 100, the guide suture, and the chest tube 200. Thus, this invention reduces the number of times the guide needs to be inserted during puncture surgery, and the operation steps are relatively simple. It is also less likely to cause wound expansion due to improper operation, which is beneficial to the patient's postoperative recovery.

[0023] It should also be noted that, in terms of material selection, the flexible tube 210 can be made of bio-silicone material, and the first elastic skeleton 220 and the second elastic skeleton 230 can be made of elastic alloy materials such as nickel-titanium.

[0024] In a further embodiment, such as Figure 8 and Figure 9 As shown, the chest tube 200 also includes a rigid ring 260 and an end connector 270. The rigid ring 260 is disposed at one end of the flexible tube 210. The end connector 270 is fixedly connected to the end of the rigid ring 260 away from the flexible tube 210. The two ends of the end connector 270 are connected through each other, and the end of the end connector 270 away from the rigid ring 260 is threadedly connected to a main rotating cap 271. A rotating cavity 272 is opened inside the end connector 270. The rotating cavity 272 is connected to a plurality of air holes 250 one by one. A side connecting hole 273 is provided on the outside of the end connector 270. One end of the side connecting hole 273 passes through the interior of the end connector 270 and is connected to the rotating cavity 272. The other end of the side connecting hole 273 is threadedly connected to a side rotating cap 274.

[0025] In the initial state, the main screw cap 271 is threaded onto the end connector 270, and the side screw cap 274 is threaded onto the side connection hole 273.

[0026] When negative pressure is drawn into the vent 250, the operator unscrews the side-rotating cap 274, then connects one end of the catheter with a one-way valve to the side connection hole 273, and then connects the other end of the catheter to the air cylinder (or a larger injection device). At this time, the one-way valve is configured to restrict outside air from entering the vent 250 through the catheter. Since the side connection hole 273 is connected to the vent 250, the air in the vent 250 can be drawn into the rotating cavity 272 through the air cylinder, and then the air is drawn into the air cylinder through the side connection hole 273 and the catheter, so that the vent 250 is in a closed state. Next, the operator removes the air cylinder from the catheter. At this time, under the one-way restriction of the one-way valve, outside air cannot enter the vent 250 through the catheter, so the flexible tube 210 can maintain a circumferentially converged state, so that the flexible tube 210 can be inserted into the patient's pleural cavity.

[0027] When draining effusion, air needs to be inflated into the vent 250 first. The staff first removes the catheter from the side connection hole 273, then connects one end of the catheter (after reversing the positions of the two ends) into the side connection hole 273, and finally connects the other end of the catheter to the air cylinder. At this time, the air cylinder is pulled outward, and the air in the air cylinder is forced into the vent 250 through the one-way valve, so that the vent 250 is in an open state. Next, the medical staff unscrews the main cap 271 and connects the 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 a further embodiment, such as Figure 7 As shown, the flexible tube 210 has multiple drainage holes 211 at equal intervals around its end away from the end connector 270, and the multiple drainage holes 211 extend to penetrate the inner circumferential wall of the flexible tube 210.

[0029] Multiple drainage holes 211 are opened around the circumference of the flexible tube 210 to ensure that the effusion in the patient's pleural cavity can be drained evenly, preventing the effusion in some areas of the patient's pleural cavity from being drained while the effusion in other areas remains.

[0030] When a large number of drainage holes 211 are blocked by impurities in the patient's pleural cavity, the flow rate of the effusion decreases. At this time, the impurities in the drainage holes 211 can be squeezed out by alternately applying negative pressure and inflating the air hole 250 to restore the normal flow rate.

[0031] It should be added that during the contrast examination, based on the area of ​​the shadow in the patient's pleural cavity, the doctor can roughly estimate the amount of pleural effusion. When the amount of effusion discharged is significantly less than the estimated amount, and the flow rate of effusion discharged by the flexible tube 210 is already very small, it can be determined that the vent 250 may be blocked by impurities.

[0032] In a further embodiment, such as Figure 10 As shown, the cross-section of the second elastic skeleton 230 is straight, and a notch 231 is provided in the middle of one side of the second elastic skeleton 230 facing the first elastic skeleton 220.

[0033] It is understandable that setting the notch 231 is equivalent to artificially creating a weak point in the middle of the side of the second elastic skeleton 230 facing the first elastic skeleton 220. In this way, when negative pressure is drawn into the vent 250, the second elastic skeleton 230 can use this weak point as the midpoint of rotation and fold and deform towards the center of the flexible tube 210.

[0034] It should be noted that the cross-section of the second elastic skeleton 230 is straight, which is suitable for the chest tube 200 with a relatively small diameter. Because the cross-section of the second elastic skeleton 230 in the unfolded state is straight, the chest tube 200 is not easily deformed by force, which can better prevent gaps from appearing between the flexible tube 210 and the patient's wound, so as to prevent the leakage of fluid.

[0035] In a further embodiment, the cross-section of the second elastic skeleton 230 is arc-shaped, and the center of the arc is close to the center of the flexible tube 210. A notch 231 is provided on the middle of one side of the second elastic skeleton 230 facing the first elastic skeleton 220.

[0036] Similarly, in this embodiment, the notch 231 is equivalent to artificially creating a weak point in the middle of the side of the second elastic skeleton 230 facing the first elastic skeleton 220, so that the second elastic skeleton 230 can fold and deform toward the center of the flexible tube 210.

[0037] It should be further explained that the second elastic skeleton 230 with an arc-shaped cross-section is more prone to folding and deformation under stress than the second elastic skeleton 230 with an arc-shaped cross-section. Similarly, since the larger diameter chest tube 200 has a greater expansion capacity, even if the second elastic skeleton 230 is accidentally subjected to stress and undergoes a certain deformation, it is not easy to cause a gap between the chest tube 200 and the patient's wound.

[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] During thoracentesis, after determining the puncture site, the doctor disinfects the selected area with iodine solution and covers it with a sterile drape. Then, an incision is made, and the puncture needle 110 is inserted into the patient's body through the incision. When the tip of the puncture needle 110 has entered the pleural cavity, the staff uses a syringe 130 to aspirate the pleural effusion. It is observed whether the pleural effusion can pass through the puncture needle 110 and the three-way connector 120 into the syringe 130. If the light yellow effusion can be observed flowing smoothly into the syringe 130, it means that the tip of the puncture needle 110 has entered 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 flowing into the syringe 130 when the syringe 130 is pulled.

[0046] After the puncture needle 110 is inserted into the predetermined position in the patient's pleural cavity, the flexible tube 210 needs to be inserted into the patient's pleural cavity next. At this time, the doctor unscrews the sterile cap from the other side branch port of the three-way connector 120, then inserts the end of the flexible tube 210 with the drainage hole 211 into the three-way connector 120, and pushes the flexible tube 210 inward so that the flexible tube 210 is inserted into the patient's pleural cavity through the three-way connector 120 and the puncture needle 110 in sequence.

[0047] Understandably, the intervention depth of the flexible tube 210 is slightly greater than that of the puncture needle 110, so that the end of the flexible tube 210 is clamped in the patient's pleural cavity. This way, when the puncture needle 110 is removed from the patient's body, the flexible tube 210 can maintain its intervention position. The drainage hole 211 is opened on the outer peripheral surface of the flexible tube 210 rather than at the end of the flexible tube 210, which is also to adapt to the end position of the puncture needle 110 during intervention, so that the effusion can be smoothly drained through the drainage hole 211.

[0048] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0049] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by 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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