Double-insurance two-needle suture type puncture device

Abstract

The invention relates to the field of medical instruments, in particular to a double-insurance two-needle suture type puncture device which comprises a puncture cannula and a puncture cone, the puncture cannula and the puncture cone are detachably connected, a sealing cover, a self-adjusting sealing cap and a choke valve are arranged on the puncture cannula, and a porous double-layer thread clamping and binding structure is arranged on a tubular structure of the puncture cannula. Through holes corresponding to the porous double-layer wire clamping and binding structure are formed in the puncture cone, the sealing cover is detachably arranged at the top of the puncture sleeve, the self-adjusting sealing cap is arranged above the choke valve, and the self-adjusting sealing cap and the choke valve are detachably arranged between the sealing cover and the puncture sleeve respectively. Two-needle crossed suture can be completely achieved, the distance between two needles can be freely controlled according to ideas of doctors, various surgical suture requirements are met, and the risk of hernia after an abdominal wall operation is completely avoided through the double-insurance suture mode.

Description

Technical Field

[0001] The invention relates to the technical field of medical instruments, in particular to a double-safety two-needle suturing puncture device. Background Art

[0002] Laparoscopic surgery has gradually replaced traditional surgery due to its advantages such as less trauma, less physiological interference to patients, good cosmetic effect, less pain, and faster recovery. It has been widely used in general surgery, gynecology, and cardiothoracic surgery. Laparoscopic surgery requires opening a hole in the patient's abdomen and performing the surgery under laparoscopic observation. Fascia suture is required after the surgery. Fascia suture is difficult to suture due to its small incision and deep inner wall. Currently, puncture sutures are used to complete postoperative suturing work, but existing puncture sutures have many parts, a complex internal structure, and a high probability of failure.

[0003] In order to solve the above technical problems, CN117064506A discloses a laparoscopic puncture suture device, which has a relatively simple structure. However, from the perspective of the device, the laparoscopic puncture suture device still has many parts, and after suturing, because there is only one row of through holes on the puncture suture device for the suture needle to pass through, the distance between the two needles is large, which is not conducive to the doctor using different suturing techniques in complex situations. Therefore, there are still shortcomings and deficiencies in the prior art. Summary of the invention

[0004] The purpose of the present invention is to provide a double-safety two-needle suturing puncture device to solve the problems raised in the above background technology.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a double-safety two-needle suture puncture device, comprising: a puncture sleeve and a puncture cone. The puncture sleeve and the puncture cone are detachably connected. A sealing cover, a self-adjusting sealing cap and an air-blocking valve are arranged on the puncture sleeve. A porous double-layer wire clamping and binding structure is arranged on the tubular structure of the puncture sleeve. A through hole corresponding to the porous double-layer wire clamping and binding structure is arranged on the puncture cone. The sealing cover is detachably arranged on the top of the puncture sleeve, and a through hole is arranged on the top of the sealing cover. The self-adjusting sealing cap is arranged above the air-blocking valve, and the two are detachably arranged between the sealing cover and the puncture sleeve.

[0006] Furthermore, 8 through holes are arranged on the tubular structure of the puncture sleeve, 4 through holes form a group, and two groups of through holes are respectively arranged on both sides of the tubular structure of the puncture sleeve. In a group of four through holes, two through holes are divided into a small group, and the two through holes in a small group are arranged in the same vertical direction. The two small groups are arranged parallel to each other and at two heights respectively.

[0007] Furthermore, the puncture cone is provided with four channels that match the eight through holes provided on the tubular structure of the puncture sleeve. When one end of a channel is aligned with a through hole, the other end of the channel is aligned with a through hole provided on the other side of the puncture sleeve. At this time, the two ends of the other channels are also aligned with the through holes on both sides of the puncture sleeve respectively. The four channels are staggered with each other to form an X-shaped cavity structure inside the puncture cone.

[0008] Furthermore, an air inlet pipe is provided on the top of the puncture sleeve, and the air inlet pipe is provided perpendicularly to the puncture sleeve. A ventilation valve seat is provided on the air inlet pipe. The ventilation valve seat is a hollow structure that is cylindrical as a whole and passes through from top to bottom. It is vertically arranged on the air inlet pipe. A half-circle protrusion is provided on the upper surface of the ventilation valve seat. The position of the connecting line of the two ends of the protrusion is perpendicular to the air inlet pipe. A ventilation valve is provided on the ventilation valve seat. A handle is provided at the upper end of the ventilation valve, and an air inlet is provided at the lower end at the same horizontal position of the air inlet pipe. The air inlet is located on the center line of the ventilation valve and passes through the ventilation valve. The air inlet and the handle are on the same center line. A limiter is provided on the part of the ventilation valve that contacts the ventilation valve seat. The limiter is a quarter circle of the plane in which it is located, and is located on one side of the handle, matching with the half-circle protrusion provided on the upper surface of the ventilation valve, to limit the rotation of the ventilation valve on the ventilation valve seat.

[0009] Furthermore, a card slot is provided on the outer wall at the top of the puncture sleeve, and the card slot is provided with an opening. The card slot gradually narrows from the opening along the closing direction of the sealing cover, and a buckle matching the card slot of the puncture sleeve is provided on the inner wall at the lower end of the sealing cover. The sealing cover and the puncture sleeve are rotatably connected by the card slot and the buckle cooperating with each other.

[0010] Furthermore, the inner ring diameter of the self-adjusting sealing cap is larger than the outer ring diameter of the air blocking valve, a circle of grooves is arranged on the top of the self-adjusting sealing cap, and two positioning columns extending downward are arranged on the inner surface of the top of the sealing cover. When the sealing cover is installed on the puncture sleeve, the two positioning columns are inserted into the circle of grooves arranged on the top of the self-adjusting sealing cap and are slidably connected thereto. The part of the self-adjusting sealing cap forming the inner ring of the groove extends downward to form a bottom surface, and a through hole is arranged on the bottom surface. The self-adjusting sealing cap is made of silicone material.

[0011] Furthermore, the top of the tubular structure part of the puncture sleeve is located on the inner side of the top opening of the puncture sleeve, and the horizontal position of the top of the sleeve part is higher than the junction of the sleeve part and the top opening of the puncture sleeve, forming a circular ring-shaped protrusion, and a through hole is provided on the side of the circular ring-shaped protrusion close to the ventilation valve (104), and the bottom of the air blocking valve protrudes downward to form a groove with the top outer ring, and the groove matches the circular ring-shaped protrusion on the puncture sleeve. When the air blocking valve is installed on the puncture sleeve, the air blocking valve groove is clamped and connected to the circular ring-shaped protrusion on the puncture sleeve.

[0012] Furthermore, the outer ring of the sleeve portion of the puncture sleeve is provided with a thread.

[0013] Furthermore, the bottom opening of the puncture sleeve is designed to be inclined at 45 degrees, and a circle of soft rubber is tightly wrapped outside the through hole side on the sleeve part.

[0014] Furthermore, blades are arranged on both sides of the lower end of the puncture cone.

[0015] Compared with the prior art, the present invention has the following advantages: (1) The present invention simplifies the mold manufacturing process, and the parts production parameters are stable and the defect rate is low. This is because all the parts of the present invention are manufactured by molds, and the structure of each part is simple. Only some parts have special structures such as openings and grooves, and all of them can be completed by modifying the mold details, so that the parts production parameters of the present invention are stable and the price is low.

[0016] (2) The present invention simplifies the total number of instrument parts, and each component has a simple structure, making it easy to assemble. The instrument has a long service life and a low defect rate. The installation method can be learned through simple training. Each component is provided with matching grooves and other structures. Even non-professionals can assemble it without any basic knowledge, which greatly reduces the cost of use and learning time for doctors.

[0017] (3) The present invention can fully realize two-needle cross suturing through the several through holes on the puncture cone and the puncture cannula. The distance between the two needles can be freely controlled according to the doctor's idea, which meets the needs of various surgical suturing. The double-safety suturing method completely avoids the risk of hernia after abdominal wall surgery.

[0018] (4) The present invention adopts a rotating and tightly fitting structure to connect the sealing cover and the self-adjusting sealing cap, which not only ensures the reliability and sealing of the connection, but also simplifies and speeds up the assembly process, and solves the convenience and flexibility requirements for emergency removal of other specimens during surgery.

[0019] (5) The present invention adopts a structure in which the sleeve and the air-blocking valve are connected to each other from top to bottom, which not only ensures the reliability and sealing of the connection, but also simplifies and speeds up the assembly process, and solves the needs of convenience and flexibility in the emergency removal of other specimens during surgery. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of a double-safety two-needle suturing puncture device.

[0021] Figure 2 A schematic diagram of an exploded view of a double-safety two-needle suture puncture device.

[0022] Figure 3 A schematic diagram of a three-dimensional exploded view of a double-safety two-needle suturing puncture device.

[0023] Figure 4 Schematic diagram of the puncture cone.

[0024] Figure 5 Schematic diagram of puncture cannula.

[0025] Figure 6 Schematic diagram of the puncture cannula.

[0026] Figure 7 Schematic diagram of the sealing cover.

[0027] Figure 8 Schematic diagram of the self-adjusting sealing cap.

[0028] Fig. 9 Schematic diagram of a choke valve.

[0029] Fig.10 Schematic diagram of the ventilation valve.

[0030] Among them, 100, puncture sleeve, 101, sealing cover, 102, self-adjusting sealing cap, 103, air blocking valve, 104, ventilation valve, 200, puncture cone. DETAILED DESCRIPTION

[0031] The present invention aims to address the deficiencies of the prior art and provide a double-safety two-needle suturing puncture device, which is specifically implemented by the following technical solutions: Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 The present embodiment provides a double-insurance two-needle suture puncture device, comprising: a puncture sleeve 100 and a puncture cone 200. The puncture sleeve 100 and the puncture cone 200 are detachably connected. The puncture cone 200 is inserted from the top of the puncture sleeve 100 and then passes out from the opening at the bottom thereof. Blades are arranged on both sides of the lower end of the puncture cone 200 for cutting the patient's skin tissue, muscles, etc.

[0032] Reference Figure 2 , Figure 3 , Figure 4 The puncture cannula 100 is provided with a sealing cover 101, a self-adjusting sealing cap 102, and an air-blocking valve 103. The tubular structure of the puncture cannula 100 is provided with a porous double-layer clamping wire binding structure, and the puncture cone 200 is provided with a through hole corresponding to the porous double-layer clamping wire binding structure, so as to cooperate with the physician to adopt different suturing techniques and complete surgical suturing work with different specifications.

[0033] Reference Figure 4 , Figure 5 , Figure 6, 8 through holes are arranged on the tubular structure of the puncture sleeve 100, 4 through holes form a group, and two groups of through holes are arranged on both sides of the tubular structure of the puncture sleeve 100, and in one group of four through holes, two through holes are divided into a small group, and two through holes in a small group are arranged in the same vertical direction, and the two small groups are arranged parallel to each other and are arranged at two heights respectively. The puncture cone 200 is provided with four channels matching the 8 through holes arranged on the tubular structure of the puncture sleeve 100, when one end of a channel is aligned with a through hole, the other end of the channel is aligned with a through hole arranged on the other side of the puncture sleeve 100, and at this time, the two ends of the other channels are also aligned with the through holes on both sides of the puncture sleeve 100, and the four channels are staggered to form an X-shaped cavity structure inside the puncture cone (200). When the puncture cone 200 penetrates the inside of the puncture sleeve 100, the two ends of the four channels inside the puncture cone 200 can correspond to a through hole on the puncture sleeve 100, and then the needle is inserted to complete the subsequent suturing work. The suturing device in the prior art is only provided with two opposite through holes, and can only complete the suturing work of one needle at the same time. The present device is provided with eight through holes on the puncture sleeve 100, and the puncture cone 200 is provided with four channels corresponding thereto, and the middle of the four channels is interconnected, so that the present device can complete the suturing work of two needles on both sides at the same time, one needle suturing from left to right, and the other needle suturing from right to left, and the two needles can be staggered in the puncture cone 200, which can more accurately control the interval between the two needles, can meet the suturing requirements of some special surgeries, complete the suturing work, and when necessary, can complete the suturing of four needles at the same time, and can complete a more precise suturing operation.

[0034] Reference Figure 2 , Figure 3 The sealing cover 101 is detachably arranged on the top of the puncture sleeve 100, and a through hole is arranged on the top of the sealing cover 101. The self-adjusting sealing cap 102 is arranged above the air blocking valve 103, and the two are detachably arranged between the sealing cover 101 and the puncture sleeve 100. The above components do not rely on other components that simply complete the locking and fixing to complete the fixation, but adopt the mutual cooperation of their own structures to complete the loading and unloading. The installation process is simple and the disassembly is quick, which is convenient for emergency removal of other specimens during surgery to adapt to different emergencies.

[0035] Reference Figure 3 , Figure 5 , Figure 7A card slot is provided on the outer wall of the top of the puncture sleeve 100, and the card slot is provided with an opening. The card slot gradually narrows from the opening along the closing direction of the sealing cover 101, and a buckle matching the card slot of the puncture sleeve 100 is provided on the inner wall of the lower end of the sealing cover 101. The sealing cover 101 and the puncture sleeve 100 are connected by rotating and snapping with each other through the card slot and the buckle. The two are loaded and unloaded by rotation. The process is simple and fast, with no learning cost. If an emergency occurs during the operation, the device can be dismantled as quickly as possible and the corresponding specimen can be taken out therefrom. The operation will not be affected by other situations due to the long disassembly time of the device, thereby maximizing the success probability of the operation.

[0036] Reference Figure 3 , Figure 5 , Fig. 9 The top of the tubular structure part of the puncture sleeve 100 is located on the inner side of the top opening of the puncture sleeve 100, and the horizontal position of the top of the sleeve part is higher than the junction of the sleeve part and the top opening of the puncture sleeve 100, forming an annular protrusion, and a through hole is provided on the side of the annular protrusion close to the vent valve 104, so that the air inlet pipe can pass through this hole to intake or exhaust air into the device. This protrusion is used to clamp the air blocking valve 103, and the bottom of the air blocking valve 103 protrudes downward to form a groove with the top outer ring, and the groove matches the annular protrusion on the puncture sleeve 100. When the air blocking valve 103 is installed on the puncture sleeve 100, the groove of the air blocking valve 103 is clamped and connected to the annular protrusion on the puncture sleeve 100, and the two cooperate with each other and are clamped and connected. During assembly, the air blocking valve 103 only needs to be placed on the top of the puncture sleeve 100, and the air blocking valve 103 can be clamped thereon.

[0037] Reference Fig. 9 The air blocking valve 103 is an openable and closable structure, through which components such as a puncture cone can pass, and when it is in a closed state, the air tightness inside the device is ensured.

[0038] Reference Figure 3 , Figure 7 , Figure 8 , Fig. 9 The inner diameter of the self-adjusting sealing cap 102 is larger than the outer diameter of the air-blocking valve 103. The self-adjusting sealing cap 102 is placed on the air-blocking valve 103 because its inner diameter is larger than the outer diameter of the air-blocking valve 103 and the size of the downwardly concave part in the middle matches the groove in the middle of the air-blocking valve 103. Therefore, the self-adjusting sealing cap 102 can be stably placed on the air-blocking valve 103.

[0039] Reference Figure 3 , Figure 7 , Figure 8 , Fig. 9A circle of grooves is arranged on the top of the self-adjusting sealing cap 102, and two positioning posts extending downward are arranged on the inner surface of the top of the sealing cover 101. When the sealing cover 101 is installed on the puncture sleeve 100, the two positioning posts are inserted into the circle of grooves arranged on the top of the self-adjusting sealing cap 102 and are slidably connected with it, so that when the sealing cover 101 is installed on the puncture sleeve 100, the self-adjusting sealing cap 102 is pressed downward by relying on the positioning posts, thereby ensuring the stability of the self-adjusting sealing cap 102 and the air blocking valve 103 inside the puncture sleeve 100, and no large displacement and deformation will occur due to external force.

[0040] Reference Figure 8 The part of the inner circle of the groove formed by the self-adjusting sealing cap 102 extends downward to form a bottom surface, and a through hole is arranged on the bottom surface. The self-adjusting sealing cap 102 is made of silicone material, and its material can make the through hole stretch to a large extent, so that components such as puncture cones 200 of different sizes can pass through, and the diameter of the through hole itself is smaller than the cross-sectional diameter of such components. Therefore, when the puncture cone 200 passes through the through hole in the center of the self-adjusting sealing cap 102, the self-adjusting sealing cap 102 will fit tightly with the part in contact with the puncture cone 200, thereby ensuring airtightness and isolating the entry of bacteria to a certain extent.

[0041] Reference Figure 3 , Fig.10 The top of the puncture sleeve 100 is provided with an air inlet pipe, the air inlet pipe is arranged perpendicular to the puncture sleeve 100, and a ventilation valve seat is arranged on the air inlet pipe. The ventilation valve seat is a hollow structure that is cylindrical as a whole and passes through from top to bottom. It is arranged vertically on the air inlet pipe, and a half-circle protrusion is arranged on the upper surface of the ventilation valve seat. The position of the connecting line of the two ends of the protrusion is perpendicular to the air inlet pipe. A ventilation valve 104 is arranged on the ventilation valve seat, and a handle is arranged on the upper end of the ventilation valve 104, and an air inlet is arranged on the lower end at the same horizontal position of the air inlet pipe. The air inlet is located on the center line of the ventilation valve 104 and passes through the ventilation valve 104. The air inlet and the handle are on the same center line. A limiter is provided on the part of the ventilation valve 104 that contacts the ventilation valve seat. The limiter is a quarter circle of the plane in which it is located, and is located on one side of the handle, matching with the half-circle protrusion arranged on the upper surface of the ventilation valve, so as to limit the rotation of the ventilation valve 104 on the ventilation valve seat, and the opening and closing of the ventilation valve 104 is used to control the air extraction of the device.

[0042] Reference Figure 6 The outer ring of the sleeve part of the puncture sleeve 100 is provided with a thread, so that when the puncture sleeve 100 contacts the human body, it can be more closely combined with the human body, thereby ensuring the stability of the device during use.

[0043] Reference Figure 6The bottom opening of the puncture cannula 100 is designed to be inclined at 45°, which makes it easier for the device to enter the human body, and the through hole on the cannula is tightly wrapped with a circle of soft rubber. The through hole on the cannula of the puncture cannula 100 is tightly wrapped with a circle of soft rubber, so that when the needle is inserted, the soft rubber can tightly wrap the needle body, minimizing the external air impurities from entering the device from here.

[0044] Embodiment 1: In specific use, the vent valve 104 is installed on the puncture sleeve 100 in the factory state, and then the air blocking valve 103 is placed on the top opening of the puncture sleeve 100, and the annular protrusion on the puncture sleeve 100 can be snapped into the groove at the bottom of the air blocking valve 103, and then the self-adjusting sealing cap 102 is placed on the air blocking valve 103, and the downwardly concave part in the middle of the self-adjusting sealing cap 102 matches the downwardly concave part in the middle of the air blocking valve 103, so that the self-adjusting sealing cap 102 is snapped onto the air blocking valve 103, and then the sealing cover 101 is placed on the puncture sleeve 100, and the sealing cover 101 is rotated. , screw it on the puncture sleeve 100, and at the same time, the positioning column inside it will press the self-adjusting sealing cap 102 and the air blocking valve 103 below it on the puncture sleeve 100. At this time, the main body of the device is installed. When it is needed, the puncture cone 200 is pushed in from the top of the sealing cover 101, passes through the puncture sleeve 100, and comes out from the bottom of the puncture sleeve 100. A blade is provided at the bottom of the puncture cone 200, which can cut human tissue to complete the puncture work of the operation. Then, according to the specific suturing technique of the doctor, the four groups of channels on the puncture cone 200 and the eight through holes on the puncture sleeve 100 can be used to complete different suturing operations.

[0045] Embodiment 2: On the basis of embodiment 1, another group of through holes is opened obliquely below the two groups of through holes on the tubular structure of the puncture sleeve 100 to form a design of three groups of through holes. At the same time, the puncture cone 200 matching the puncture sleeve 100 opens a channel matching it. When in use, the vent valve 104 is installed on the puncture sleeve 100 in the factory state, and then the air blocking valve 103 is placed on the top opening of the puncture sleeve 100, and the annular protrusion on the puncture sleeve 100 can be snapped into the groove at the bottom of the air blocking valve 103, and then the self-adjusting sealing cap 102 is placed on the air blocking valve 103, and the downwardly concave part of the middle part of the self-adjusting sealing cap 102 matches the downwardly concave part of the middle part of the air blocking valve 103, so that the self-adjusting sealing cap 102 The sealing cover 101 is clamped on the air blocking valve 103, and then the sealing cover 101 is placed on the puncture sleeve 100. The sealing cover 101 is rotated to tighten and fix it on the puncture sleeve 100. At the same time, the positioning column inside it will press the self-adjusting sealing cap 102 and the air blocking valve 103 below it onto the puncture sleeve 100. At this time, the main body of the device is installed. When it is needed, the puncture cone 200 is pushed in from the top of the sealing cover 101, passes through the puncture sleeve 100, and comes out from the bottom of the puncture sleeve 100. A blade is provided at the bottom of the puncture cone 200, which can cut human tissue to complete the puncture work of the operation. Then, according to the specific suturing technique of the doctor, the six groups of channels on the puncture cone 200 and the twelve through holes on the puncture sleeve 100 can be used to complete different suturing operations.

[0046] Embodiment 3: Three sets of through holes parallel to each other are provided on the tubular structure of the puncture sleeve 100, and the puncture cone 200 matching the puncture sleeve 100 is provided with a matching channel. In specific use, the vent valve 104 is installed on the puncture sleeve 100 in the factory state, and then the air blocking valve 103 is placed on the top opening of the puncture sleeve 100, and the annular protrusion on the puncture sleeve 100 can be snapped into the groove at the bottom of the air blocking valve 103, and then the self-adjusting sealing cap 102 is placed on the air blocking valve 103, and the downwardly concave part in the middle of the self-adjusting sealing cap 102 matches the downwardly concave part in the middle of the air blocking valve 103, so that the self-adjusting sealing cap 102 is snapped into the air blocking valve 103, and then The sealing cover 101 is placed on the puncture sleeve 100, and the sealing cover 101 is rotated to tighten and fix it on the puncture sleeve 100. At the same time, the positioning column inside it will press the self-adjusting sealing cap 102 and the air blocking valve 103 below it onto the puncture sleeve 100. At this time, the main body of the device is installed. When it is needed, the puncture cone 200 is pushed in from the top of the sealing cover 101, passes through the puncture sleeve 100, and comes out from the bottom of the puncture sleeve 100. A blade is provided at the bottom of the puncture cone 200, which can cut human tissue to complete the puncture work of the operation. Then, according to the specific suturing technique of the doctor, the six groups of channels on the puncture cone 200 and the twelve through holes on the puncture sleeve 100 can be used to complete different suturing operations.

[0047] Embodiment 4: Three vertical through holes are provided on the tubular structure of the puncture sleeve 100, and a puncture cone 200 matching the puncture sleeve 100 is provided with a matching channel. When in use, the vent valve 104 is installed on the puncture sleeve 100 in the factory state, and then the air blocking valve 103 is placed on the top opening of the puncture sleeve 100, and the annular protrusion on the puncture sleeve 100 can be snapped into the groove at the bottom of the air blocking valve 103, and then the self-adjusting sealing cap 102 is placed on the air blocking valve 103, and the downwardly concave part in the middle of the self-adjusting sealing cap 102 matches the downwardly concave part in the middle of the air blocking valve 103, so that the self-adjusting sealing cap 102 is snapped into the air blocking valve 103, and then The sealing cover 101 is placed on the puncture sleeve 100, and the sealing cover 101 is rotated to tighten and fix it on the puncture sleeve 100. At the same time, the positioning column inside it will press the self-adjusting sealing cap 102 and the air blocking valve 103 below it onto the puncture sleeve 100. At this time, the main body of the device is installed. When it is needed, the puncture cone 200 is pushed in from the top of the sealing cover 101, passes through the puncture sleeve 100, and comes out from the bottom of the puncture sleeve 100. A blade is provided at the bottom of the puncture cone 200, which can cut human tissue to complete the puncture work of the operation. Then, according to the specific suturing technique of the doctor, the three groups of channels on the puncture cone 200 and the six through holes on the puncture sleeve 100 can be used to complete different suturing operations.

Claims

1. A double-safety two-needle suturing puncture device, characterized in that: include: The puncture sleeve (100) and the puncture cone (200) are detachably connected. The puncture sleeve (100) and the puncture cone (200) are provided with a sealing cover (101), a self-adjusting sealing cap (102), and a blocking valve (103). The tubular structure of the puncture sleeve (100) is provided with a multi-hole double-layer wire clamping and binding structure, and the puncture cone (200) is provided with a through hole corresponding to the multi-hole double-layer wire clamping and binding structure. The sealing cover (101) is detachably arranged on the top of the puncture sleeve (100), and a through hole is arranged on the top of the sealing cover (101). The self-adjusting sealing cap (102) is arranged above the air blocking valve (103), and the two are detachably arranged between the sealing cover (101) and the puncture sleeve (100).

2. A double-safety two-needle suturing puncture device according to claim 1, characterized in that: The tubular structure of the puncture sleeve (100) is provided with eight through holes, four through holes forming a group, and two groups of through holes are respectively provided on both sides of the tubular structure of the puncture sleeve (100). In a group of four through holes, two through holes are divided into a small group, and the two through holes in a small group are arranged in the same vertical direction. The two small groups are arranged parallel to each other and are respectively arranged at two heights.

3. A double-safety two-needle suturing puncture device according to claim 2, characterized in that: The puncture cone (200) is provided with four channels that match the eight through holes provided on the tubular structure of the puncture sleeve (100). When one end of a channel is aligned with a through hole, the other end of the channel is aligned with a through hole provided on the other side of the puncture sleeve (100). At this time, the two ends of the other channels are also aligned with the through holes on both sides of the puncture sleeve (100). The four channels are interlaced with each other to form an X-shaped cavity structure inside the puncture cone (200).

4. A double-safety two-needle suturing puncture device according to claim 1, characterized in that: An air inlet pipe is arranged at the top of the puncture sleeve (100), and the air inlet pipe is arranged perpendicular to the puncture sleeve (100). The air intake pipe is provided with a vent valve seat, which is a hollow structure with a cylindrical shape and is vertically connected to the air intake pipe. A half-circle protrusion is provided on the upper surface of the vent valve seat, and the position of the connecting line of the two ends of the protrusion is perpendicular to the air intake pipe. A vent valve (104) is arranged on the vent valve seat. A handle is arranged at the upper end of the vent valve (104). An air inlet is arranged at the lower end at the same horizontal position as the air inlet pipe. The air inlet is located on the midline of the vent valve (104) and penetrates the vent valve (104). The air inlet and the handle are located on the same midline. A limiter is provided at the portion of the vent valve (104) that contacts the vent valve seat. The limiter is a quarter circle of the plane where the limiter is located and is located on one side of the handle. The limiter matches a half-circle protrusion provided on the upper surface of the vent valve to limit the rotation of the vent valve (104) on the vent valve seat.

5. A double-safety two-needle suturing puncture device according to claim 4, characterized in that: A slot is provided on the outer wall of the top of the puncture sleeve (100), the slot having an opening, and the slot gradually narrows from the opening along the closing direction of the sealing cover (101). A buckle matching the slot of the puncture sleeve (100) is provided on the inner wall of the lower end of the sealing cover (101). The sealing cover (101) and the puncture sleeve (100) are connected by rotation and snap-fitting with each other through the snap groove and the snap buckle.

6. A double-safety two-needle suturing puncture device according to claim 5, characterized in that: The inner diameter of the self-adjusting sealing cap (102) is larger than the outer diameter of the air blocking valve (103). The self-adjusting sealing cap (102) is provided with a circle of grooves on the top. Two positioning posts extending downward are arranged on the inner surface of the top of the sealing cover (101). When the sealing cover (101) is installed on the puncture sleeve (100), the two positioning posts are inserted into a circle of grooves arranged on the top of the self-adjusting sealing cap (102) and are slidably connected thereto. The part of the self-adjusting sealing cap (102) forming the inner circle of the groove extends downward to form a bottom surface, and a through hole is provided on the bottom surface. The self-adjusting sealing cap (102) is made of silicone.

7. A double-safety two-needle suturing puncture device according to claim 6, characterized in that: The top of the tubular structure portion of the puncture sleeve (100) is located on the inner side of the top opening of the puncture sleeve (100), and the horizontal position of the top of the sleeve portion is higher than the junction between the sleeve portion and the top opening of the puncture sleeve (100), forming a circular ring-shaped protrusion, and a through hole is provided on the side of the circular ring-shaped protrusion close to the ventilation valve (104). The air blocking valve (103) is an openable and closable structure. The bottom of the air blocking valve (103) protrudes downwards and forms a groove with the top outer ring, and the groove matches the circular ring protrusion on the puncture sleeve (100). When the air blocking valve (103) is installed on the puncture sleeve (100), the groove of the air blocking valve (103) is snap-connected to the circular ring protrusion on the puncture sleeve (100).

8. A double-safety two-needle suturing puncture device according to claim 1, characterized in that: The outer ring of the sleeve portion of the puncture sleeve (100) is provided with a thread.

9. A double-safety two-needle suturing puncture device according to claim 7, characterized in that: The bottom opening of the puncture sleeve (100) is designed to be inclined at 45°, and a circle of soft rubber is tightly wrapped around the outside of the through hole on the sleeve portion.

10. A double-safety two-needle suturing puncture device according to claim 1, characterized in that: Blades are arranged on both sides of the lower end of the puncture cone (200).

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