Abdominal wall puncture stitching instrument

Abstract

The utility model belongs to the technical field of medical instruments, and particularly relates to an abdominal wall puncture stitching instrument. Comprising a puncture cannula device, a puncture cone device and a threading hook, the puncture cannula device comprises a puncture cannula seat, a gas injection valve, a gas injection switch, a gas blocking valve, a rotary switch, a spring, a puncture cannula seat sealing cover, a lower sealing cover, a blocking piece fixing ring, a blocking piece, an upper pressing plate, an elastic sealing cap inner ring, a lower pressing plate, a self-debugging sealing cap and a positioning guide cover. The puncture cone device comprises a puncture cone, a release switch, a puncture cone seat, a pressing key, a puncture cone guide hole I and a puncture cone guide hole II; the threading hook comprises a handle, a push handle reset spring, a push handle, a handle cover, a thread pulling hook, a sleeve and a needle tube. The abdominal wall puncture stitching instrument is reasonable in design and convenient to use, due to the fact that the puncture cannula device, the puncture device and the threading hook are arranged, puncture of deep fascia of the abdominal cavity, the thoracic cavity and the like is achieved under an endoscope, and meanwhile a channel allowing other minimally invasive instruments to enter the body is established for laparoscopic surgery.

Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, and in particular relates to an abdominal wall puncture and suturing device. Background Technology

[0002] Minimally invasive laparoscopic surgery, with its advantages of minimal trauma, minimal physiological disturbance to the patient, good cosmetic results, less pain, and faster recovery, is gradually replacing traditional surgery and is widely used in general surgery, gynecology, and cardiothoracic surgery. Laparoscopic surgery requires an incision in the patient's abdomen, performed under laparoscopic observation, and postoperative fascial suturing. Fascial suturing is difficult due to the small incision and deep inner wall. Current solutions include manual suturing and fascial stapler suturing. Manual suturing is suitable for thinner patients, but for obese patients, the thick abdominal wall tissue makes precise and effective suturing of the puncture incision impossible, leading to a series of complications such as bleeding, infection, puncture site hernia, and injury. Fascial stapler suturing can suture the fascia in obese patients, but the trocar must be removed before operating the stapler, making the procedure complex, time-consuming, and increasing the risk of infection.

[0003] Current fascia suture devices and puncture suture devices are not structurally perfect and are not convenient to use. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing an abdominal wall puncture and suturing device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An abdominal wall puncture suture device includes a puncture cannula device, a puncture cone device, and a threading hook.

[0007] The described puncture cannula device includes a puncture cannula seat, an air injection valve, an air injection switch, an air stop valve, a rotary switch, a spring, a puncture cannula seat sealing cap, a lower sealing cap, a baffle fixing ring, a baffle, an upper pressure plate, an inner ring of an elastic sealing cap, a lower pressure plate, a self-adjusting sealing cap, and a positioning guide cap.

[0008] The air injection valve is connected to the air port of the puncture cannula seat. The air injection switch is installed on the upper part of the air injection valve and can rotate. The air-blocking valve is made of silicone and has a certain elasticity. It is installed in conjunction with the interface on the upper part of the puncture cannula seat. A rotary switch is installed on the outer ring of the upper part of the puncture cannula seat, which can rotate horizontally at a certain angle along the rotation groove on the puncture cannula seat. The spring is installed in the notch between the rotary switch and the sealing cover of the puncture cannula seat. One end of the spring abuts against the spring limit block of the sealing cover of the puncture cannula seat, and the other end abuts against the spring limit block of the rotary switch. A fixing pin is provided at the lower part of the sealing cover of the puncture cannula seat. The fixing pin is installed by engaging with the fixing hole on the puncture cannula seat to fix the intermediate components, making the puncture sleeve, air injection valve, air injection switch, air-blocking valve, rotary switch and puncture cannula seat sealing cover a whole.

[0009] The positioning guide cover is installed below the puncture cone mounting base. Four baffles are evenly distributed circumferentially on the baffle fixing ring. They are positioned and engaged through holes at the ends of the baffles and mounting posts on the baffle fixing ring. The self-adjusting sealing cap is installed below the baffles. The upper and lower pressure plates are installed together, and the inner ring of the elastic sealing cap is installed between the upper and lower pressure plates. The lower sealing cover is installed below the lower pressure plate, and its outer ring is connected to the positioning guide cover.

[0010] The puncture cone device includes a puncture cone, a release switch, a puncture cone seat, a pressure key, a puncture cone guide hole one, and a puncture cone guide hole two.

[0011] The upper end of the puncture cone is provided with a puncture cone mounting seat, which is installed between the positioning guide cover and the release switch. The release switch is provided with buckles at both ends, which are fixedly connected to the slots of the positioning guide cover to clamp the puncture cone mounting seat in the middle. The puncture cone seat is installed on the release switch and fits tightly with it. The pressure key is installed in the reserved groove of the puncture cone seat. The pressure key is provided with cylindrical protrusions on both sides, which are placed in the reserved groove of the pressure key of the puncture cone mounting seat.

[0012] The lower part of the puncture cone has two guide holes, one for threading and the other for hooking the thread. These two guide holes are arranged in a cross shape. After the puncture cone is inserted into the puncture cannula, the threading groove at the lower part of the puncture cannula seat connects to both guide holes, facilitating threading and hooking.

[0013] The threading hook includes a handle, a push handle return spring, a push handle, a handle cover, a pull hook, a sleeve, and a needle tube.

[0014] The push handle return spring is installed in the spring groove of the handle, with the lower end of the push handle connected to the upper end of the spring. The handle cover is installed on the upper end of the handle and is fixed together by the buckle on the handle and the slot in the handle cover. The protrusions on both sides of the push handle cooperate with the groove in the handle spring groove, fixing the position of the push handle while allowing the push handle to move up and down axially. The push handle return spring, because its other end abuts against the bottom of the handle spring groove, can only be compressed and extended in the axial direction. One end of the sleeve passes through the needle tube hole of the handle and the spring and is connected and fixed to the push handle, while the other end is fixedly connected to the pull hook. The needle tube is sleeved on the outside of the sleeve, with one end of the needle facing outward and the other end fixedly connected to the needle tube hole on the handle, enclosing the sleeve and the pull hook.

[0015] Preferably, the air injection valve is installed in the air injection valve groove on the upper part of the puncture cannula seat and communicates with the upper part of the inner cavity of the puncture cannula seat.

[0016] Preferably, the upper end of the puncture cannula seat is provided with symmetrically distributed puncture guide holes for guiding the threading hook so that it can accurately puncture the first puncture cannula guide hole and the second puncture cannula guide hole.

[0017] Preferably, the puncture cannula seat is provided with a toothed anti-slip ring to ensure secure fixation during the operation.

[0018] Preferably, the puncture cannula seat body is provided with symmetrical sealing puncture cannula guide holes, and the middle of the sealing puncture cannula guide holes is sealed with a thin layer of silicone, which can isolate the inside and outside and reduce contamination.

[0019] Preferably, the lower end of the puncture cone is provided with a puncture cone head, and there are puncture blades on both sides to facilitate puncture.

[0020] Preferably, the threading hook is an elastic hook, and two threading hooks form a suture clamp. When extended, the suture clamp opens its jaws due to its own bending; when retracted, the suture clamp closes its jaws due to the restriction of the needle tube. This achieves the function of clamping the suture.

[0021] Compared with the prior art, the disposable puncture suture device of this invention has the following advantages:

[0022] 1. The puncture site is protected by an elastic puncture membrane, reducing the number of components, facilitating needle insertion, and providing strict dust protection. 2. Two symmetrical puncture guide holes are distributed on both sides of the puncture cannula seat, ensuring accurate positioning of the threading hook device and facilitating puncture.

[0023] This utility model discloses an abdominal wall puncture suture device with a reasonable design and convenient use. Because it is equipped with a puncture cannula, a puncture device and a suture hook, it can perform punctures on deep fascia such as the abdominal cavity and thoracic cavity under laparoscopy. At the same time, it establishes a channel for other minimally invasive instruments to enter the body for laparoscopic surgery, provides a method for pre-tying sutures, and can pull the sutures on both sides of the incision out of the puncture cannula and tie them without affecting the intraoperative operation.

[0024] An abdominal wall puncture and suturing device is used to puncture tissues such as the abdominal cavity and thoracic cavity during laparoscopic examinations and surgeries, establishing a working channel for surgery in the abdominal cavity and thoracic cavity, allowing surgical instruments to enter the abdominal cavity and thoracic cavity through the puncture cannula, thereby completing the surgical procedure. After the surgery, deep fascia sutures can be easily performed, truly realizing minimally invasive surgery. Attached Figure Description

[0025] The present invention will be further described below with reference to the accompanying drawings:

[0026] Figure 1 This is a schematic diagram of an embodiment one of the abdominal wall puncture and suturing devices of this utility model;

[0027] Figure 2 This is a schematic diagram of the assembly of the puncture cannula and puncture cone device in Embodiment 1 of the present invention, which is an abdominal wall puncture and suturing device.

[0028] Figure 3 This is a disassembly diagram of the puncture cannula and puncture cone device of Embodiment 1 of the abdominal wall puncture and suturing device of this utility model;

[0029] Figure 4 This is a schematic diagram of the puncture cannula structure of an embodiment of the abdominal wall puncture and suturing device of this utility model;

[0030] Figure 5 This is a schematic diagram of the puncture cone device structure of an embodiment of the abdominal wall puncture and suturing device of this utility model;

[0031] Figure 6 This is a schematic diagram of the threading hook structure of an embodiment of the abdominal wall puncture and suturing device of this utility model;

[0032] Figure 7 This is a schematic diagram of the puncture cone device structure of Embodiment 2 of the abdominal wall puncture and suturing device of this utility model.

[0033] In the diagram: 1. Puncture cannula device, 2. Puncture cone device, 3. Thread hook;

[0034] 1-1. Positioning guide cover; 1-2. Lower sealing cover; 1-3. Puncture sleeve seat sealing cover; 1-4. Rotary switch; 1-5. Puncture sleeve seat; 1-6. Air injection switch; 1-7. Air injection valve; 1-8. Baffle retaining ring; 1-9. Baffle; 1-10. Self-adjusting sealing cap; 1-11. Upper pressure plate; 1-12. Inner ring of elastic sealing cap; 1-13. Lower pressure plate; 1-14. Spring; 1-15. Air choke valve; 1-16. Puncture sleeve. 1-17. Guide hole 1 for puncture cannula; 1-18. Guide hole 2 for puncture cannula; 2-1. Puncture cone seat; 2-2. Release switch; 2-3. Press key; 2-4. Puncture cone; 2-5. Guide hole 1 for puncture cone; 2-6. Guide hole 2 for puncture cone; 2-7. Puncture blade; 3-1. Push handle; 3-2. Handle cover; 3-3. Handle; 3-4. Push handle return spring; 3-5. Cannula; 3-6. Needle tube; 3-7. Suture clamp. Detailed Implementation

[0035] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example 1:

[0036] See attached document Figure 1-6 An abdominal wall puncture suture device includes a puncture cannula device 1, a puncture cone device 2, and a thread hook 3.

[0037] The puncture cannula device 1 includes a positioning guide cover 1-1, a lower sealing cover 1-2, a puncture cannula seat sealing cover 1-3, a rotary switch 1-4, a puncture cannula seat 1-5, an air injection switch 1-6, an air injection valve 1-7, a baffle fixing ring 1-8, a baffle 1-9, a self-adjusting sealing cap 1-10, an upper pressure plate 1-11, an inner ring of an elastic sealing cap 1-12, a lower pressure plate 1-13, a spring 1-14, an air-blocking valve 1-15, a puncture cannula guide hole one 1-16, a puncture cannula guide hole two 1-17, and a puncture guide hole 1-18.

[0038] The air injection valve 1-7 is installed in conjunction with the air port of the puncture cannula seat 1-5. The air injection switch 1-6 is installed on the upper part of the air injection valve 1-7 and can rotate. The air-blocking valve 1-15 is made of silicone and has a certain elasticity. It is installed in conjunction with the interface on the upper part of the puncture cannula seat 1-5. A rotary switch 1-4 is installed on the outer ring of the upper part of the puncture cannula seat 1-5, which can rotate horizontally at a certain angle along the rotation groove on the puncture cannula seat 1-5. The spring 1-14 is installed in the notch between the rotary switch 1-4 and the puncture cannula seat sealing cover 1-3. One end of the spring 1-14 abuts against the spring limit block of the puncture cannula seat sealing cover 1-3, and the other end abuts against the spring limit block of the rotary switch 1-4. A fixing pin is provided at the lower part of the puncture cannula seat sealing cap 1-3. The fixing pin is installed by cooperating with the fixing hole on the puncture cannula seat 1-5 to fix the middle component together, so that the puncture cannula seat 1-5, the air injection valve 1-7, the air injection switch 1-6, the air stop valve 1-15, the rotary switch 1-4 and the puncture cannula seat sealing cap 1-3 become a whole.

[0039] The positioning guide cover 1-1 is installed below the mounting base of the piercing cone 2-4. Four baffles 1-9 are evenly distributed circumferentially on the baffle fixing ring 1-8, and are positioned and engaged through the holes at the ends of the baffles 1-9 and the mounting posts on the baffle fixing ring 1-8. The self-adjusting sealing cap 1-10 is installed below the baffles 1-9. The upper pressure plate 1-11 and the lower pressure plate 1-13 are installed together. The inner ring 1-12 of the elastic sealing cap is installed between the upper pressure plate 1-11 and the lower pressure plate 1-13. The lower sealing cover 1-2 is installed below the lower pressure plate 1-13, and its outer ring is connected to the positioning guide cover 1-1.

[0040] The puncture cone device 2 includes a puncture cone seat 2-1, a release switch 2-2, a pressure key 2-3, a puncture cone 2-4, a puncture cone guide hole one 2-5, a puncture cone guide hole two 2-6, and a puncture blade 2-7.

[0041] The upper end of the puncture cone 2-4 is provided with a puncture cone mounting seat, which is installed between the positioning guide cover 1-1 and the release switch 2-2. The release switch 2-2 is provided with buckles at both ends, which are fixedly connected to the slots of the positioning guide cover 1-1 to clamp the puncture cone 2-4 mounting seat in the middle. The puncture cone seat 2-1 is installed on the release switch 2-2 and fits tightly with it. The pressure key 2-3 is installed in the reserved groove of the puncture cone seat 2-1. The pressure key 2-3 is provided with cylindrical protrusions on both sides, which are placed in the reserved groove of the pressure key 2-3 of the puncture cone 2-4 mounting seat.

[0042] The lower part of the puncture cone 2-4 is provided with a puncture cone guide hole 2-5 and a puncture cone guide hole 2-6 for threading and hooking the thread. The puncture cone guide holes 2-5 and 2-6 are arranged in a cross shape. The puncture cone 2-4 is inserted into the puncture cannula seat 1-5. The puncture cannula guide holes 1-16 and 1-17 provided at the lower part of the puncture cannula seat 1-5 are respectively connected to the puncture cone guide holes 2-5 and 2-6, facilitating threading and hooking the thread.

[0043] The threading hook 3 includes a push handle 3-1, a handle cover 3-2, a handle 3-3, a push handle return spring 3-4, a sleeve 3-5, a needle tube 3-6, and a suture clip 3-7.

[0044] The push handle return spring 3-4 is installed in the spring groove inside the handle 3-3. The lower end of the push handle 3-1 is connected to the upper end of the push handle return spring 3-4. The handle cover 3-2 is installed on the upper end of the handle and is fixed together by the buckle on the handle 3-3 and the slot in the handle cover 3-2. The protrusions on both sides of the push handle 3-1 cooperate with the grooves on both sides of the spring groove in the handle 3-3, fixing the position of the push handle 3-1 while allowing the push handle 3-1 to move up and down axially. The push handle return spring 3-4 can only be compressed and extended in the axial direction because its other end abuts against the bottom of the spring groove in the handle 3-3. One end of the sleeve 3-5 passes through the needle tube hole of the handle and the push handle return spring 3-4 and is connected and fixed to the push handle 3-1. The other end is fixedly connected to the suture clip 3-7. The needle tube 3-6 is sleeved on the outside of the sleeve 3-5, with one end of the needle facing outward and the other end fixedly connected to the needle tube 3-6 hole on the handle 3-3, enclosing the sleeve 3-5 and the suture clip 3-7. The suture clamp 3-7 consists of two elastically bent steel wires. When the push handle 3-1 is pressed, the push handle return spring 3-4 is compressed, and at the same time, the sleeve 3-5 pushes the suture clamp 3-7 to extend. Due to the elastic bending of the suture clamp 3-7, the clamp opening will open when the needle tube 3-6 is extended to hold the suture. When the push handle 3-1 is released, the push handle return spring 3-4 extends, driving the push handle 3-1 to return to its original position. At the same time, the sleeve 3-5 also retracts the suture clamp 3-7. Due to the restriction of the needle tube 3-6, the clamp opening of the suture clamp 3-7 closes, thereby fixing the suture.

[0045] The specific working process of an abdominal wall puncture and suturing device according to Embodiment 1:

[0046] Insert the puncture cone 2-4 of the puncture cone device 2 into the puncture cannula device 1, and pass through the baffle 1-9, the inner ring 1-12 of the elastic sealing cap and the air-blocking valve 1-15 in sequence, and insert it into the puncture cannula seat 1-5. The puncture cone head provided at the lower end of the puncture cone 2-4 passes through the front end of the puncture cannula seat 1-5, and connects the threading groove provided at the lower part of the puncture cannula seat 1-5 with the puncture cone guide hole 1 2-5 and the puncture cone guide hole 2-6, so as to facilitate threading and hooking the wire.

[0047] 2. Using standard surgical techniques, make a skin incision large enough to insert an abdominal wall puncture and suture device;

[0048] 3. Insert the lower part of the puncture cone 2-4 and puncture cannula seat 1-5 of the puncture cone device 2 into the skin incision. The puncture cone 2-4 is inserted slowly. During the puncture, the abdominal wall puncture suture device is perpendicular to the abdominal wall. Do not use too much force. Stop the puncture when it reaches the specified position.

[0049] 4. Then, push the trocar seat 1-5 into the abdominal cavity. Do not use excessive force. At the same time, observe the trocar tip 2-7 of the trocar cone 2-4 with the laparoscope. Do not damage the internal organs.

[0050] 5. Press the release switch 2-2. The latch of the release switch 2-2 will disengage from the positioning guide cover 1-1, and the puncture cone device 2 can be removed. The instrument can then enter the body cavity through the puncture cannula device 1 for surgical operation.

[0051] 6. After the surgical procedure is completed, reinsert the puncture cone device 2 into the puncture cannula device 1, release the latch of the switch 2-2 and lock it in place with the positioning guide cover 1-1, and gently lift the puncture cannula device 1 under laparoscopic observation so that the black mark at the lower end is aligned with the abdominal wall.

[0052] 7. Remove the protective sleeve of the thread hook 3, press the push handle 3-1, the suture clamp 3-7 extends and opens the clamp, grab the suture into the clamp, release the push handle 3-1, the suture clamp 3-7 retracts and closes the clamp, slowly pierce the puncture cannula guide hole 1-16 of the puncture cannula seat 1-5 sealed with silicone layer along the puncture guide hole 1-18 of the puncture cannula device 1, because the puncture cannula guide hole 1-16 of the puncture cannula seat 1-5 corresponds to the puncture cone guide hole 2-5 of the puncture cone 2-4, and then the thread hook 3 can enter the abdominal cavity to perform abdominal wall suturing.

[0053] 8. Press the push handle 3-1 of the threading hook 3. The suture clamp 3-7, which has entered the abdominal cavity, extends and releases the suture. Use other auxiliary instruments to hold the suture in the body, release the push handle 3-1, release the suture, and the suture clamp 3-7 retracts into the needle tube 3-6. Then you can pull out the threading hook 3.

[0054] 9. Insert the threading hook 3 into the abdominal cavity through the puncture guide hole 1-18, the puncture cannula guide hole 2-17, and the puncture cone guide hole 2-6 on the other side. Press the push handle 3-1 of the threading hook 3 to extend the suture clamp 3-7, which will hold the suture. Release the push handle 3-1 of the threading hook 3, and the suture clamp 3-7 will retract. The suture will be pulled out along with the hook as it exits the abdominal cavity.

[0055] 10. Slowly pull the puncture cannula 1 out of the abdominal skin incision. The two ends of the suture are pulled out of the body surface by the puncture cannula 1. Tie the two ends of the suture firmly and pull the knot back into the abdominal cavity.

[0056] 11. The puncture cannula device 1 serves as a surgical channel for surgical operations. The air inlet tube can be connected to the air injection valve 1-7 on the puncture cannula seat 1-5, and the air injection switch 1-6 can be rotated. When there are no instruments in the puncture cannula device 1, the sealing system remains inflated. During this process, other laparoscopic instruments can be inserted into the body through the puncture cannula for surgical operations. Example 2:

[0057] The difference between this embodiment and Embodiment 1 is that: a puncture device, as shown in the attached... Figure 7 As shown, it includes a puncture cone seat 2-1, a release switch 2-2, a pressure key 2-3, a puncture cone 2-4, and a puncture blade 2-7.

[0058] The upper end of the puncture cone 2-4 is provided with a puncture cone mounting seat, which is installed between the positioning guide cover 1-1 and the release switch 2-2. The release switch 2-2 is provided with buckles at both ends, which are fixedly connected to the slots of the positioning guide cover 1-1 to clamp the puncture cone 2-4 mounting seat in the middle. The puncture cone seat 2-1 is installed on the release switch 2-2 and fits tightly with it. The pressure key 2-3 is installed in the reserved groove of the puncture cone seat 2-1. The pressure key 2-3 is provided with cylindrical protrusions on both sides, which are placed in the reserved groove of the pressure key 2-3 of the puncture cone 2-4 mounting seat.

[0059] The puncture cones 2-4 have a hollow hole in the middle, and the cone body and cone tip are made of a material with high light transmittance, which allows for observation of the puncture situation during the puncture process and helps to avoid contact with or even damage to internal organs and other tissues.

[0060] The specific working process of an abdominal wall puncture and suturing device according to Embodiment 2:

[0061] Insert the puncture cone 2-4 of the puncture cone device 2 into the puncture cannula device 1, and pass through the baffle 1-9, the inner ring 1-12 of the elastic sealing cap and the air-blocking valve 1-15 in sequence, and insert it into the puncture cannula seat 1-5. The puncture cone head provided at the lower end of the puncture cone 2-4 passes through the front end of the puncture cannula seat 1-5, and connects the threading groove provided at the lower part of the puncture cannula seat 1-5 with the puncture cone guide hole 1 2-5 and the puncture cone guide hole 2-6, so as to facilitate threading and hooking the wire.

[0062] 2. Using standard surgical techniques, make a skin incision large enough to insert an abdominal wall puncture and suture device;

[0063] 3. Insert the lower part of the puncture cone 2-4 and puncture cannula seat 1-5 of the puncture cone device 2 into the skin incision. The puncture cone 2-4 is inserted slowly. During the puncture, the abdominal wall puncture suture device is perpendicular to the abdominal wall. Do not use too much force. Stop the puncture when it reaches the specified position.

[0064] 4. Then, push the trocar seat 1-5 into the abdominal cavity. Do not use excessive force. At the same time, observe the trocar tip 2-7 of the trocar cone 2-4 with the laparoscope. Do not damage the internal organs.

[0065] 5. Press the release switch 2-2. The latch of the release switch 2-2 will disengage from the positioning guide cover 1-1, and the puncture cone device 2 can be removed. The instrument can then enter the body cavity through the puncture cannula device 1 for surgical operation.

[0066] 6. After the surgery is completed, under laparoscopic observation, gently lift the puncture cannula device 1 so that the black mark at the lower end is aligned with the abdominal wall.

[0067] 7. Remove the protective sleeve of the thread hook 3, press the push handle 3-1, the suture clamp 3-7 extends and opens the clamp, grab the suture into the clamp, release the push handle 3-1, the suture clamp 3-7 retracts and closes the clamp, slowly pierce the puncture cannula guide hole 1-16 of the puncture cannula seat 1-5 sealed with silicone layer along the puncture guide hole 1-18 of the puncture cannula device 1, because the puncture cannula guide hole 1-16 of the puncture cannula seat 1-5 corresponds to the puncture cone guide hole 2-5 of the puncture cone 2-4, and then the thread hook 3 can insert the suture into the abdominal wall incision to perform abdominal wall suturing.

[0068] 8. Press the push handle 3-1 of the threading hook 3. The suture clamp 3-7, which has entered the abdominal cavity, extends and releases the suture. Use other auxiliary instruments to hold the suture in the body, release the push handle 3-1, release the suture, and the suture clamp 3-7 retracts into the needle tube 3-6. Then you can pull out the threading hook 3.

[0069] 9. Insert the threading hook 3 into the abdominal cavity through the puncture guide hole 1-18, the puncture cannula guide hole 2-17, and the puncture cone guide hole 2-6 on the other side. Press the push handle 3-1 of the threading hook 3 to extend the suture clamp 3-7, which will hold the suture. Release the push handle 3-1 of the threading hook 3, and the suture clamp 3-7 will retract. The suture will be pulled out along with the hook as it exits the abdominal cavity.

[0070] 10. Remove the trocar device 1 from the abdominal skin incision, tie the two ends of the suture securely, and pull the knot back into the abdominal cavity. The suturing operation is complete.

[0071] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An abdominal wall puncture and suturing device, characterized in that, Includes a puncture cannula device, a puncture cone device, and a threading hook; The described puncture cannula device includes a puncture cannula seat, an air injection valve, an air injection switch, an air stop valve, a rotary switch, a spring, a puncture cannula seat sealing cap, a lower sealing cap, a baffle fixing ring, a baffle, an upper pressure plate, an inner ring of an elastic sealing cap, a lower pressure plate, a self-adjusting sealing cap, and a positioning guide cap. The air injection valve is connected to the air port of the puncture cannula seat. The air injection switch is installed on the upper part of the air injection valve and can rotate. The air-blocking valve is made of silicone and has a certain elasticity. It is installed in conjunction with the interface on the upper part of the puncture cannula seat. A rotary switch is installed on the outer ring of the upper part of the puncture cannula seat, which can rotate horizontally at a certain angle along the rotation groove on the puncture cannula seat. The spring is installed in the notch between the rotary switch and the sealing cover of the puncture cannula seat. One end of the spring abuts against the spring limit block of the sealing cover of the puncture cannula seat, and the other end abuts against the spring limit block of the rotary switch. A fixing pin is provided at the lower part of the sealing cover of the puncture cannula seat. The fixing pin is installed in conjunction with the fixing hole on the puncture cannula seat to fix the middle component together, so that the puncture sleeve, air injection valve, air injection switch, air-blocking valve, rotary switch and puncture cannula seat sealing cover are integrated into one unit. The positioning guide cover is installed below the puncture cone mounting base. Four baffles are evenly distributed circumferentially on the baffle fixing ring. They are positioned and engaged through the holes at the ends of the baffles and the mounting posts on the baffle fixing ring. The self-adjusting sealing cap is installed below the baffles. The upper pressure plate and the lower pressure plate are installed together. The inner ring of the elastic sealing cap is installed between the upper pressure plate and the lower pressure plate. The lower sealing cover is installed below the lower pressure plate, and its outer ring is connected to the positioning guide cover. The puncture cone device includes a puncture cone, a release switch, a puncture cone seat, a pressure key, a puncture cone guide hole one, and a puncture cone guide hole two; The upper end of the puncture cone is provided with a puncture cone mounting seat, which is installed between the positioning guide cover and the release switch. The release switch is provided with buckles at both ends, which are fixedly connected to the slots of the positioning guide cover to clamp the puncture cone mounting seat in the middle. The puncture cone seat is installed on the release switch and fits tightly with it. The pressure key is installed in the reserved slot of the puncture cone seat. The pressure key is provided with cylindrical protrusions on both sides, which are placed in the pressure key reserved slot of the puncture cone mounting seat. The threading hook includes a handle, a push handle return spring, a push handle, a handle cover, a pull hook, a sleeve, and a needle tube; The push handle return spring is installed in the spring groove of the handle, and the lower end of the push handle is connected to the upper end of the spring. The handle cover is installed on the upper end of the handle and is fixed together by the buckle on the handle and the slot in the handle cover. The protrusions on both sides of the push handle cooperate with the groove in the spring groove of the handle, which fixes the position of the push handle and allows the push handle to move up and down in the axial direction. The push handle return spring can only be compressed and extended in the axial direction because its other end abuts against the bottom of the spring groove of the handle. One end of the sleeve passes through the needle tube hole of the handle and the spring and is connected and fixed to the push handle. The other end is fixedly connected to the pull hook. The needle tube is sleeved on the outside of the sleeve, with one end of the needle facing outward and the other end fixedly connected to the needle tube hole on the handle, thus wrapping the sleeve and the pull hook inside.

2. The abdominal wall puncture and suturing device according to claim 1, characterized in that, The lower part of the puncture cone is provided with a puncture cone guide hole one and a puncture cone guide hole two for threading and hooking the wire. The puncture cone guide hole one and the puncture cone guide hole two are arranged in a cross shape. The puncture cone is inserted into the puncture cannula seat. The threading groove provided at the lower part of the puncture cannula seat is connected to the puncture cone guide hole one and the puncture cone guide hole two to facilitate threading and hooking the wire.

3. The abdominal wall puncture and suturing device according to claim 1, characterized in that, The air injection valve is installed in the air injection valve groove on the upper part of the puncture cannula seat and is connected to the upper part of the inner cavity of the puncture cannula seat.

4. The abdominal wall puncture and suturing device according to claim 1, characterized in that, The upper end of the puncture cannula seat is provided with symmetrically distributed puncture guide holes for guiding the threading hook so that it can accurately puncture the first puncture cannula guide hole and the second puncture cannula guide hole.

5. The abdominal wall puncture and suturing device according to claim 1, characterized in that, The puncture cannula seat is equipped with a toothed anti-slip ring, which ensures that it can be securely fixed during the operation.

6. The abdominal wall puncture and suturing device according to claim 1, characterized in that, The puncture cannula seat body is provided with symmetrical sealing puncture cannula guide holes. The middle of the sealing puncture cannula guide holes is sealed with a thin layer of silicone, which can isolate the inside and outside and reduce contamination.

7. The abdominal wall puncture and suturing device according to claim 1, characterized in that, The lower end of the puncture cone is provided with a puncture cone head, and there are puncture blades on both sides to facilitate puncture.

8. The abdominal wall puncture and suturing device according to claim 1, characterized in that, The threading hook is an elastic hook, and two threading hooks form a suture clamp. When extended, the suture clamp opens its jaws due to its own bending; when returned, the suture clamp closes its jaws due to the restriction of the needle tube, thereby realizing the function of clamping the suture.

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