A puncture device for use with a stapler

Abstract

The application relates to the field of medical devices, in particular to a puncture device used in cooperation with a suturing device, which is characterized in that the puncture device comprises a positioning cover, a puncture sleeve arranged at the bottom surface of the positioning cover, a puncture cone arranged in the puncture sleeve, and a positioning sleeve arranged on the outer wall of the puncture sleeve and used for positioning the position of a wound, wherein the bottom surface of the positioning sleeve is provided with a leakage-proof cover, the bottom of the leakage-proof cover is provided with a sealing element, and the sealing element is used for sealing the end of the leakage-proof cover. The application has the effects of reducing the use risk of the puncture device in operation and improving the safety of the puncture device.

Description

Technical Field

[0001] This application relates to the field of medical devices, and in particular to a puncture device used in conjunction with a suture device. Background Technology

[0002] A trocar is a surgical instrument that provides a puncture channel for a suture device. Its main purpose is to penetrate the entire thickness of the abdominal wall, establishing a passage between the outside and the abdominal cavity. This allows the suture device to enter the abdominal cavity through the trocar cannula and complete the suturing procedure, effectively reducing incisions during surgery, alleviating postoperative pain, resulting in smaller wounds and faster recovery. A trocar mainly consists of a trocar cannula and a trocar cone. When using the trocar, the trocar cone needs to be inserted into the trocar cannula; pneumoperitoneum is established, and then a sufficiently large skin incision is made in the abdominal cavity to accommodate the size of the trocar cannula; the trocar cannula is fixed at an appropriate angle to the pneumoperitoneum-elevated abdomen, and the force used during insertion must be controlled to avoid damaging internal organs; during puncture, the trocar cone is inserted into the abdominal cavity; finally, the trocar cone is withdrawn, and the trocar cannula serves as the surgical instrument channel for the procedure. However, if the incision is too large, there is a risk of air leakage, and the trocar's downward movement may accidentally injure internal organs, increasing the surgical risk. Summary of the Invention

[0003] To reduce the risks associated with the use of trocars during surgery and to improve their safety, this application provides a trocar for use in conjunction with a suture device.

[0004] This application provides a puncture device for use with a suture device, which adopts the following technical solution:

[0005] A puncture device for use with a suture device includes a positioning cap, a puncture cannula disposed on the bottom surface of the positioning cap, a puncture cone disposed inside the puncture cannula, and a positioning sleeve disposed on the outer side wall of the puncture cannula for positioning the wound. The bottom surface of the positioning sleeve is provided with a leak-proof cover, and the bottom of the leak-proof cover is provided with a sealing element for sealing the end of the leak-proof cover.

[0006] By adopting the above technical solution, the positioning cap is used to position the puncture cannula and the puncture cone, the puncture cannula is used to provide the puncture channel for the suture device, the puncture cone is used for the puncture cannula to enter, the positioning cap is used to determine the depth of puncture cannula entry and position the puncture cannula, the leak-proof cover is used to cover the wound and reduce the impact of the wound opening on pneumoperitoneum balance when the user adjusts the puncture cannula left and right; the sealing element is used to position the end of the leak-proof cover with the human body and at the same time improve the sealing effect of the end of the leak-proof cover.

[0007] Preferably, the outer wall of the puncture cannula is provided with a moving groove along the length direction, the positioning sleeve is provided with a moving block adapted to the moving groove, and the moving block is provided with a sealing gasket on the side wall of the moving groove.

[0008] By adopting the above technical solution, the moving groove and the moving block are easy to adjust the position of the positioning sleeve, and the sealing gasket is used to improve the tightness between the moving block and the moving groove.

[0009] Preferably, the width of the moving groove gradually decreases away from the outer wall of the puncture cannula, the positioning sleeve is provided with a telescopic groove for the moving block to extend and retract, the outer wall of the positioning sleeve is provided with a threaded hole communicating with the telescopic groove, the positioning sleeve is provided with an adjusting threaded rod located in the threaded hole, one end of the adjusting threaded rod is provided on the moving block, and the other end of the adjusting threaded rod is provided with a control block.

[0010] By adopting the above technical solution, the width of the moving groove gradually decreases away from the outer wall of the puncture sleeve. The telescopic groove is used for the moving block to enter, which facilitates the movement of the moving block. When the moving block moves, the narrower end of the moving block can be placed on the wider end of the moving groove for movement, which makes it convenient for the user to adjust the position of the leak-proof cover. The threaded hole and the adjusting threaded rod are used to press the moving block into the moving groove, which improves the stability of the moving block in the moving groove. The control block makes it easy for the user to rotate the adjusting threaded rod.

[0011] Preferably, the movable block is provided with a sealing block located in the telescopic groove, and the side wall of the sealing block is set in close contact with the inner wall of the movable groove.

[0012] By adopting the above technical solution, the sealing block is used to improve the sealing between the moving block and the expansion groove, so as to avoid gas leakage and affect the pneumoperitoneum effect.

[0013] Preferably, the bottom surface of the leak-proof cover is provided with an adhesive block, and the thickness of the adhesive block gradually decreases away from the leak-proof cover.

[0014] By adopting the above technical solution, the bonding block is used to bond to the bottom of the leak-proof cover. The thickness of the bonding block gradually decreases away from the leak-proof cover, which facilitates the bonding block to be attached.

[0015] Preferably, the sealing element includes a positioning ring, an attachment piece disposed on the bottom surface of the positioning ring, and a sealing block disposed on the top surface of the positioning ring, wherein the attachment block is located on the top surface of the positioning ring.

[0016] By adopting the above technical solution, the adhesive patch is used to attach the positioning ring to the human body, the wound is located at the center of the positioning ring, the sealing block is used to position the leak-proof cover and improve the stability of the end of the leak-proof cover, and the bottom surface of the adhesive block is in close contact with the positioning ring to improve the sealing effect of the end of the leak-proof cover.

[0017] Preferably, the sealing block is annular, and the outer wall of the sealing block is in close contact with the inner wall of the leak-proof cover.

[0018] By adopting the above technical solution, the circular shape of the sealing block can further enhance the sealing performance of the end of the leak-proof cover and avoid large openings that could affect the pneumoperitoneum effect.

[0019] Preferably, the top surface of the positioning ring is provided with a positioning piece along the outer side wall of the bonding block, and the positioning piece is inclinedly disposed on the positioning ring.

[0020] By adopting the above technical solution, the positioning piece is used to position the adhesive block and enhance the stability of the adhesive block during the operation. The positioning piece is tilted on the positioning ring. When the user rotates the puncture cannula significantly, the adhesive block will be affected and pried up. At this time, the adhesive block will overlap with the positioning piece, thereby reducing the opening and reducing the possibility of affecting pneumoperitoneum during the operation.

[0021] Preferably, the puncture cone includes a connecting portion and a cone-shaped portion disposed at the end of the connecting portion, and guide blocks are provided on both sides of the cone-shaped portion along the length direction, the guide blocks being used to push aside human tissue fibers.

[0022] By adopting the above technical solution, the connecting part is used to position the cone-shaped part, the cone-shaped part is used to enter the human body, and the guide block is used to push aside the human tissue fibers, reducing the possibility of damage to the abdominal wall and blood vessels, and reducing fascial damage.

[0023] Preferably, the thickness of the guide block gradually decreases away from the conical portion, and all the corners of the guide block are rounded.

[0024] By adopting the above technical solution, the thickness of the guide block gradually decreases away from the cone-shaped part, which can better guide the separation of tissues and blood vessels. The corners of the guide block are rounded to reduce the possibility of the guide block damaging blood vessels.

[0025] In summary, leak-proof covers can effectively alleviate air leakage caused by excessively large wounds, effectively reduce the possibility of the puncture cone falling and damaging internal organs, and the sealing components improve the sealing effect between the leak-proof cover and the body surface, thereby improving the stability of the leak-proof cover. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of a puncture device used in conjunction with a suture device according to this application;

[0027] Figure 2 This is a cross-sectional view of a puncture device used in conjunction with a suture device according to this application. Figure 1 ;

[0028] Figure 3 This is a cross-sectional view of a puncture device used in conjunction with a suture device according to this application. Figure 2 .

[0029] Reference numerals: 1. Positioning cap; 2. Puncture cannula; 3. Puncture cone; 31. Connecting part; 32. Conical part; 4. Positioning sleeve; 5. Leak-proof cover; 6. Seal; 61. Positioning ring; 62. Adhesive piece; 63. Sealing block; 7. Moving groove; 8. Moving block; 9. Sealing gasket; 10. Telescopic groove; 11. Threaded hole; 12. Adjusting threaded rod; 13. Control block; 14. Sealing block; 15. Adhesive block; 16. Positioning piece; 17. Guide block. Detailed Implementation

[0030] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0031] This application discloses a puncture device used in conjunction with a suture device. (See also...) Figure 1 and Figure 2 The system includes a positioning cap 1, a puncture cannula 2 fixedly installed on the bottom surface of the positioning cap 1, and a puncture cone 3 inserted into the puncture cannula 2. The puncture cone 3 includes a connecting part 31 and a cone-shaped part 32 integrally formed with the connecting part 31. Guide blocks 17 are fixed along the length direction on both sides of the cone-shaped part 32. The cone-shaped part 32 and the guide blocks 17 are used to push away human tissue fibers. The thickness of the guide blocks 17 gradually decreases away from the cone-shaped part 32, which facilitates the separation of human tissue fibers by the guide blocks 17. The corners of the guide blocks 17 are rounded to protect blood vessels and reduce the possibility of damage to blood vessels and fascia. A positioning sleeve 4 is fitted on the outer wall of the puncture cannula 2. A leak-proof cover 5 is fixed on the bottom surface of the positioning sleeve 4. The leak-proof cover 5 is used to seal and shield the area around the wound to maintain the stability of the pneumoperitoneum. A sealing element 6 is provided at the bottom of the leak-proof cover 5. The sealing element 6 includes a positioning ring 61, a sealing block 63 fixed to the top surface of the positioning ring 61, and an adhesive patch 62 bonded to the bottom surface of the positioning ring 61. The bottom surface of the adhesive patch 62 is adhesive and is used to adhere to the skin around the wound, which is located at the center of the positioning ring 61.

[0032] Reference Figure 1 and Figure 2 The sealing block 63 is annular, and the end of the leak-proof cover 5 is fitted onto the outer wall of the sealing block 63. The inner wall of the leak-proof cover 5 is in close contact with the outer wall of the sealing block 63, enhancing the sealing effect at the end of the leak-proof cover 5. An adhesive block 15 is provided around the bottom surface of the leak-proof cover 5, with the thickness of the adhesive block 15 gradually decreasing away from the leak-proof cover 5, facilitating its attachment to the surface of the positioning ring 61. Since the puncture cannula 2 may move during surgery, the cover surface of the leak-proof cover 5 adopts a corrugated telescopic structure to ensure the stability and sealing of the end of the leak-proof cover 5, while also ensuring the stability of the internal air pressure. During use, the corrugated telescopic structure of the leak-proof cover 5 can be used to press down and then retract, resulting in a tighter fit between the leak-proof cover 5 and the sealing block 63. Furthermore, the leak-proof cover is made of transparent material to facilitate observation of the wound.

[0033] Reference Figure 1 and Figure 2 A positioning piece 16 is inclinedly arranged around the top surface of the positioning ring 61 along the outer side wall of the bonding block 15. The positioning piece 16 is inclined toward the bonding block 15, and its two ends are staggered to form notches, so that the bonding block 15 can rotate into the space formed by the positioning piece 16 and the positioning ring 61. The positioning piece 16 can improve the stability of the bonding block 15 on the positioning ring 61 and improve the sealing effect of the leak-proof cover 5.

[0034] Reference Figure 2 and Figure 3 To facilitate the movement of the positioning sleeve 4, the position of the leak-proof cover 5 is adjusted. A moving groove 7 is formed along the length of the outer wall of the puncture tube 2. A moving block 8, adapted to the moving groove 7, is installed on the inner wall of the positioning sleeve 4. The width of the moving groove 7 gradually decreases away from the outer wall of the puncture tube 2. A telescopic groove 10 is formed on the inner wall of the positioning sleeve 4 to store the moving block 8. When the positioning sleeve 4 moves, the moving block 8 is placed within the telescopic groove 10, reducing interference. A threaded hole 11 communicating with the telescopic groove 10 is formed on the outer wall of the positioning sleeve 4. An adjusting threaded rod 12 is threadedly connected to the positioning sleeve 4 within the threaded hole 11. One end of the adjusting threaded rod 12 is mounted on the moving block 8 via a rotating shaft, and the other end of the adjusting threaded rod 12 is fixed to a control block 13. When the adjusting threaded rod 12 rotates, it moves the moving block 8 out of the telescopic hole and into the moving groove 7. To improve the sealing and stability between the movable block 8 and the movable groove 7, sealing gaskets 9 are fixed on the side wall of the movable block 8 that is close to the movable groove 7. A sealing block 14 located inside the movable groove 7 is also fixed on the movable block 8. The side wall of the sealing block 14 is set to be close to the inner wall of the movable groove 7, which can effectively improve the sealing of the upper end of the anti-leakage cover 5 and facilitate the prevention of air leakage in the pneumatic ventilator.

[0035] The implementation principle of a puncture device used in conjunction with a suture device according to an embodiment of this application is as follows: First, the wound location is determined. The positioning ring 61 is adhered to the body surface using the adhesive patch 62. Then, the puncture cannula 2 is inserted into the wound. After determining the position of the puncture cannula 2, the corrugated part of the leak-proof cover 5 is partially rotated, causing the adhesive block 15 to enter the gap between the positioning patch 16 and the positioning ring 61. After the position of the leak-proof cover 5 is adjusted, the position of the positioning sleeve 4 is adjusted. Once determined, the adjusting threaded rod 12 is turned to push the moving block 8 into the moving groove 7 for fixation. When the user performs suturing operations using the suture device, if the position of the puncture cannula 2 shifts and air leaks from the wound, the leak-proof cover 5 can effectively maintain the stability of the pneumoperitoneum.

[0036] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A puncture device for use with a suture device, characterized in that: It includes a positioning cap (1), a puncture cannula (2) disposed on the bottom surface of the positioning cap (1), a puncture cone (3) disposed inside the puncture cannula (2), and a positioning sleeve (4) sleeved on the outer wall of the puncture cannula (2) for positioning the wound position. The bottom surface of the positioning sleeve (4) is provided with a leak-proof cover (5), and the bottom of the leak-proof cover (5) is provided with a sealing element (6). The sealing element (6) is used to seal the end of the leak-proof cover (5). The outer side wall of the puncture cannula (2) is provided with a moving groove (7) along the length direction. The positioning sleeve (4) is provided with a moving block (8) that is adapted to the moving groove (7). The moving block (8) is provided with a sealing gasket (9) on the side wall of the moving groove (7) in close contact with the moving groove (7). The bottom surface of the leak-proof cover (5) is provided with a bonding block (15), the thickness of the bonding block (15) gradually decreases away from the leak-proof cover (5), and the cover surface of the leak-proof cover (5) adopts a corrugated telescopic structure. The sealing element (6) includes a positioning ring (61), an attachment piece (62) disposed on the bottom surface of the positioning ring (61), and a sealing block (63) disposed on the top surface of the positioning ring (61), wherein the attachment block (15) is located on the top surface of the positioning ring (61); The top surface of the positioning ring (61) is surrounded by a positioning piece (16) along the outer side wall of the bonding block (15). The positioning piece (16) is inclined on the positioning ring (61) and tilted toward the bonding block (15). The two ends of the positioning piece (16) are staggered to form a notch, which is used for the bonding block (15) to rotate into the space formed by the positioning piece (16) and the positioning ring (61). When using it, determine the location of the wound, attach the positioning ring (61) to the body surface by attaching the patch (62), insert the puncture cannula (2) into the wound, and determine the position of the puncture cannula (2); rotate the corrugated part of the leak-proof cover (5) to insert the patch (15) into the gap between the positioning patch (16) and the positioning ring (61). After the position of the leak-proof cover (5) is adjusted, adjust the position of the positioning sleeve (4), turn the adjusting threaded rod (12), and push the moving block (8) into the moving groove (7) for fixation.

2. The puncture device for use with a suture device according to claim 1, characterized in that: The width of the moving groove (7) gradually decreases away from the outer wall of the puncture cannula (2). The positioning sleeve (4) is provided with a telescopic groove (10) for the moving block (8) to extend and retract. The outer wall of the positioning sleeve (4) is provided with a threaded hole (11) communicating with the telescopic groove (10). The positioning sleeve (4) is provided with an adjusting threaded rod (12) located in the threaded hole (11). One end of the adjusting threaded rod (12) is set on the moving block (8), and the other end of the adjusting threaded rod (12) is provided with a control block (13).

3. The puncture device for use with a suture device according to claim 2, characterized in that: The movable block (8) is provided with a sealing block (14) located in the telescopic groove (10), and the side wall of the sealing block (14) is closely attached to the inner wall of the movable groove (7).

4. A puncture device for use with a suture device according to claim 1, characterized in that: The sealing block (63) is in the shape of a ring, and the outer wall of the sealing block (63) is in close contact with the inner wall of the leak-proof cover (5).

5. A puncture device for use with a suture device according to claim 1, characterized in that: The puncture cone (3) includes a connecting part (31) and a cone-shaped part (32) disposed at the end of the connecting part (31). Guide blocks (17) are provided on both sides of the cone-shaped part (32) along the length direction. The guide blocks (17) are used to push aside human tissue fibers.

6. A puncture device for use with a suture device according to claim 5, characterized in that: The thickness of the guide block (17) gradually decreases away from the cone-shaped portion (32), and the corners of the guide block (17) are all rounded.

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