Puncture outfit with fascia suturing function

Abstract

The puncture outfit with the fascia suturing function comprises a puncture cannula and a puncture cone, the puncture cone is detachably arranged in the puncture cannula in a penetrating mode, and a valve seat is arranged at the top of the puncture cannula. After the puncture cone is pulled out, a guide rod is detachably arranged in the puncture sleeve in a penetrating mode, a sealing cover connected with the valve seat in a sealed mode is arranged at the top of the guide rod, a guide channel allowing a suture needle to penetrate is formed in the guide rod, the inlet end of the guide channel penetrates through the top face of the sealing cover, and the outlet end of the guide channel penetrates through the side wall of the guide rod. At least two guide channels are obliquely distributed in a staggered mode, a guide window communicated with the outlet ends of the guide channels is formed in the side wall of the puncture cannula, a sealing film is attached to the guide window, and the suture needle can puncture the sealing film. The device has the effects that the operation difficulty is reduced, the suturing efficiency is improved, and the possibility of secondary injury to a wound is reduced.

Description

Technical Field

[0001] The utility model relates to the field of puncture devices, in particular to a puncture device with a fascia suturing function. Background Art

[0002] The trocar is a medical consumable. It is mainly used in conjunction with minimally invasive equipment to provide instrument channels for minimally invasive abdominal and pelvic surgeries. It can be used in various minimally invasive surgical procedures. It is used by specialists to puncture the abdominal cavity, deliver gas into the abdominal cavity, and establish a channel for endoscopes and surgical instruments to enter and exit the abdominal cavity from the outside during laparoscopic surgery. Various laparoscopic surgeries include minimally invasive surgical surgeries, gynecological minimally invasive surgeries, thoracic surgery, urology surgery and other laparoscopic surgeries.

[0003] The puncture device includes a puncture cannula and a puncture cone inserted in the cannula. The main task of the puncture cone is to penetrate the entire abdominal wall together with the puncture device cannula, and then pull out the puncture cone, leaving the puncture cannula on the abdominal wall. A channel is formed inside the puncture cannula for surgical instruments to enter and exit the abdominal cavity, so that doctors can perform surgical operations and complete surgical tasks.

[0004] Usually at the end of the operation when entering the wound suturing stage, it is necessary to first pull out the puncture device from the body, and then insert the fascia closure device to suture and tie the wound. This not only has high requirements for the operation of inserting the fascia closure device, but also requires careful insertion into the wound. Improper operation will cause secondary trauma to the wound. In addition, after the puncture device is pulled out, the wound has partially healed automatically. The process of reinserting the fascia closure device is more likely to cause secondary damage to the wound. Not only that, the careful insertion of the fascia closure device into the wound also reduces the suturing efficiency. Utility Model Content

[0005] In order to solve the above technical problems, the present application provides a puncture device with fascia suturing function.

[0006] The present application provides a puncture device with fascia suturing function, which adopts the following technical solution:

[0007] A puncture device with fascia suturing function comprises a puncture sleeve and a puncture cone, wherein the puncture cone is detachably inserted into the puncture sleeve, and a valve seat is arranged on the top of the puncture sleeve; after the puncture cone is pulled out, a guide rod is detachably inserted into the puncture sleeve, the guide rod is cylindrical, a sealing cover sealed with the valve seat is arranged on the top of the guide rod, a guide channel for a suture needle to penetrate is arranged on the guide rod, the inlet end of the guide channel penetrates the top surface of the sealing cover, and the outlet end of the guide channel penetrates the side wall of the guide rod, at least two guide channels are obliquely staggered, a guide window connected with the outlet end of the guide channel is opened on the side wall of the puncture sleeve, a sealing film is attached to the guide window, and the suture needle can puncture the sealing film.

[0008] Preferably, a guide groove communicating with the guide channel is provided on the top surface of the sealing cover, and the guide groove is gradually arranged from a direction close to the guide rod to a direction away from the guide rod.

[0009] Preferably, a sealing member is provided on the valve seat, and the sealing member includes a connecting portion and an opening and closing portion, the connecting portion is annular and fixedly connected to the inner wall of the valve seat, and the opening and closing portion includes two elastic sealing sheets, and the sides of the two elastic sealing sheets that are away from each other are fixedly connected to the inner wall of the connecting portion, and the sides of the two elastic sealing sheets that are close to each other remain in contact due to their own elasticity, and the sides of the two elastic sealing sheets that are close to each other are separated from each other under the action of external force.

[0010] Preferably, a sealing ring is provided on the peripheral side wall of the guide rod, the sealing ring is arranged below the guide window, and the sealing ring is interference fit with the inner wall of the puncture sleeve.

[0011] Preferably, the sealing cover is coaxially connected to the top surface of the guide rod, a positioning buckle is provided on the bottom surface of the sealing cover, and a positioning groove for the positioning buckle to be fastened is provided on the top surface of the valve seat.

[0012] Preferably, the positioning buckles are symmetrically arranged on both sides of the guide rod in the radial direction.

[0013] Preferably, a plurality of positioning strips are equidistantly arranged on the top surface of the valve seat along its circumference, and a positioning groove for correspondingly locking the plurality of positioning strips is provided on the bottom surface of the sealing cover.

[0014] Preferably, four guide channels are provided, wherein two guide channels whose outlet ends are symmetrically located on both sides of the guide rod in the radial direction form a channel group, and the inclination degrees of the guide channels in the two channel groups are different.

[0015] In summary, the present application includes at least one of the following beneficial technical effects:

[0016] 1. After the puncture device and the puncture cone penetrate the abdominal wall, the puncture cone is pulled out, and then the guide rod is inserted into the puncture sleeve and the sealing cover is sealed and connected with the valve seat to maintain the pneumoperitoneum environment. During operation, the guide rod can be directly inserted into the puncture sleeve. When the valve seat and the sealing cover of the puncture sleeve are sealed, the guide rod is automatically positioned and guided. Then the suture needle is penetrated through the sealing film through the guide channel and enters the tissue for suturing. There is no need to align the wound with the fascia closer, which reduces the difficulty of operation, improves the suturing efficiency, and reduces the possibility of secondary damage to the wound.

[0017] 2. Setting up multiple channel groups facilitates doctors to adjust the insertion angle and depth of the suture needle as needed to ensure the accuracy and stability of suture. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of a puncture device with fascia suturing function in an embodiment of the present application.

[0019] Figure 2 It is a schematic diagram of the structure of the guide tube used to illustrate the embodiment of the present application.

[0020] Figure 3 It is a structural schematic diagram used to illustrate the valve seat in the embodiment of the present application.

[0021] Figure 4 It is a schematic diagram of the structure of the seal used to illustrate the embodiment of the present application.

[0022] Explanation of the accompanying drawings: 1. puncture sleeve; 11. external thread section; 12. flat frame; 2. valve seat; 21. injection valve; 22. positioning slot; 23. positioning strip; 3. guide rod; 4. sealing cover; 41. guide groove; 42. positioning buckle; 43. positioning groove; 5. guide channel; 6. guide window; 61. sealing film; 7. sealing element; 71. connecting part; 72. opening and closing part; 721. elastic sealing sheet; 8. sealing ring. DETAILED DESCRIPTION

[0023] The following is combined with Figure 1-4 This application is described in further detail.

[0024] The embodiment of the present application discloses a puncture device with fascia suturing function.

[0025] Reference Figure 1-4 The puncture device with fascia suturing function comprises a puncture sleeve 1 and a puncture cone, the puncture cone is detachably inserted into the puncture sleeve 1, and the top of the puncture sleeve 1 is fixedly connected with a valve seat 2; after the puncture cone is pulled out, a guide rod 3 is detachably inserted into the puncture sleeve 1, the guide rod 3 is cylindrical, and a sealing cover 4 is provided on the top of the guide rod 3 and is sealed and connected with the valve seat 2, and a guide channel 5 for the suture needle to penetrate is provided on the guide rod 3, the inlet end of the guide channel 5 penetrates the top surface of the sealing cover 4, and the outlet end of the guide channel 5 penetrates the side wall of the guide rod 3, and the guide channels 5 are obliquely staggered and distributed at least two, and a guide window 6 connected with the outlet end of the guide channel 5 is provided on the side wall of the puncture sleeve 1. An external thread section 11 is provided on the outer wall of the puncture sleeve 1, and the guide window 6 is located at the external thread section 11. A sealing film 61 is attached to the guide window 6, and a flat frame 12 for attaching the sealing film 61 is provided at the position where the guide window 6 is provided on the external thread section 11. When suturing is required, the suturing needle can puncture the sealing membrane 61. During normal surgery, the sealing membrane 61 seals the puncture device and the external environment to maintain a pneumoperitoneum environment.

[0026] A guide groove 41 connected to the guide channel 5 is provided on the top surface of the sealing cover 4. The guide groove 41 is gradually arranged from close to the guide rod 3 to away from the guide rod 3, which facilitates the suture needle to penetrate the guide channel 5 and improves the convenience of the suture needle to penetrate the guide channel 5.

[0027] An injection valve 21 connected to the valve seat 2 and the inside of the puncture cannula 1 is arranged on the side wall of the valve seat 2. A sealing member 7 is arranged at the opening of the valve seat 2, and the sealing member 7 is located above the injection valve 21. The sealing member 7 does not affect the injection of gas into the puncture cannula 1. The sealing member 7 includes a connecting portion 71 and an opening and closing portion 72. The connecting portion 71 is annular and fixedly connected to the inner wall of the valve seat 2. The opening and closing portion 72 includes two elastic sealing sheets 721. The sides of the two elastic sealing sheets 721 that are away from each other are fixedly connected to the inner wall of the connecting portion 71. The sides of the two elastic sealing sheets 721 that are close to each other are kept in contact under the action of their own elasticity. The sides of the two elastic sealing sheets 721 that are close to each other are separated from each other under the action of external force. In this embodiment, the sealing member 7 is made of silicone material.

[0028] A sealing ring 8 is provided on the peripheral side wall of the guide rod 3 , and the sealing ring 8 is provided below the guide window 6 . The sealing ring 8 is interference fit with the inner wall of the puncture sleeve 1 , thereby improving the sealing performance between the guide rod 3 and the puncture sleeve 1 .

[0029] The sealing cover 4 is coaxially connected to the top surface of the guide rod 3, and a positioning buckle 42 is provided on the bottom surface of the sealing cover 4. The positioning buckles 42 are symmetrically arranged on both sides of the radial direction of the guide rod 3. A positioning groove 22 for the positioning buckle 42 to be clamped is provided on the top surface of the valve seat 2. A plurality of positioning strips 23 are equidistantly arranged on the top surface of the valve seat 2 along its own circumference, and a positioning groove 43 for the plurality of positioning strips 23 to be clamped correspondingly is provided on the bottom surface of the sealing cover 4.

[0030] When the guide rod 3 is inserted into the puncture sleeve 1, the guide rod 3 pushes away the elastic sealing sheet 721, and the positioning buckle 42 is locked in the positioning slot 22. When the sealing is achieved, the guide rod 3 is automatically positioned and guided, and there is no need to align the fascia closure device with the wound, thereby reducing the difficulty of operation and improving the suturing efficiency.

[0031] Four guide channels 5 are provided, wherein two guide channels 5 whose outlet ends are symmetrically located on both sides of the guide rod 3 in the radial direction form a channel group, and the guide channels 5 in the two channel groups have different inclinations and different heights of the outlet ends. The outlet end of each guide channel 5 corresponds to a guide window 6. The provision of two channel groups facilitates the doctor to adjust the insertion angle and depth of the suture needle as needed to ensure the accuracy and stability of suture.

[0032] The implementation principle of a puncture device with a fascia suturing function in an embodiment of the present application is as follows: after the puncture device and the puncture cone penetrate the abdominal wall, the puncture cone is pulled out, and then the guide rod 3 is inserted into the puncture sleeve 1 and the sealing cover 4 is sealed and connected with the valve seat 2 to maintain a pneumoperitoneum environment. During operation, the guide rod 3 can be directly inserted into the puncture sleeve 1. When the valve seat 2 and the sealing cover 4 of the puncture sleeve 1 are sealed, the guide rod 3 is automatically positioned and guided. Then the suture needle is passed through the guide channel 5 to pierce the sealing film 61 and enter the tissue for suturing. There is no need to align the fascia closer with the wound, which reduces the difficulty of operation, improves the suturing efficiency, and reduces the possibility of secondary damage to the wound.

[0033] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A puncture device with fascia suturing function, characterized in that: The invention comprises a puncture sleeve (1) and a puncture cone, wherein the puncture cone is detachably inserted into the puncture sleeve (1), and a valve seat (2) is arranged on the top of the puncture sleeve (1); after the puncture cone is pulled out, a guide rod (3) is detachably inserted into the puncture sleeve (1), wherein the guide rod (3) is cylindrical, and a sealing cover (4) is arranged on the top of the guide rod (3) and is sealedly connected to the valve seat (2); a guide channel (5) for a suture needle to penetrate is arranged on the guide rod (3), an inlet end of the guide channel (5) penetrates the top surface of the sealing cover (4), and an outlet end of the guide channel (5) penetrates the side wall of the guide rod (3); at least two guide channels (5) are obliquely staggered, and a guide window (6) is opened on the side wall of the puncture sleeve (1) and is connected to the outlet end of the guide channel (5); a sealing film (61) is attached to the guide window (6), and the suture needle can puncture the sealing film (61).

2. The puncture device with fascia suturing function according to claim 1, characterized in that: A guide groove (41) communicating with the guide channel (5) is provided on the top surface of the sealing cover (4), and the guide groove (41) is gradually widened from a direction close to the guide rod (3) to a direction away from the guide rod (3).

3. The puncture device with fascia suturing function according to claim 1, characterized in that: A sealing member (7) is provided on the valve seat (2), and the sealing member (7) comprises a connecting portion (71) and an opening and closing portion (72); the connecting portion (71) is annular and fixedly connected to the inner wall of the valve seat (2); the opening and closing portion (72) comprises two elastic sealing sheets (721); the sides of the two elastic sealing sheets (721) that are away from each other are fixedly connected to the inner wall of the connecting portion (71); the sides of the two elastic sealing sheets (721) that are close to each other are kept in contact due to their own elasticity; the sides of the two elastic sealing sheets (721) that are close to each other are separated from each other under the action of external force.

4. The puncture device with fascia suturing function according to claim 1, characterized in that: A sealing ring (8) is provided on the peripheral side wall of the guide rod (3), and the sealing ring (8) is arranged below the guide window (6). The sealing ring (8) is interference-fitted with the inner wall of the puncture sleeve (1).

5. The puncture device with fascia suturing function according to claim 1, characterized in that: The sealing cover (4) is coaxially connected to the top surface of the guide rod (3), a positioning buckle (42) is provided on the bottom surface of the sealing cover (4), and a positioning groove (22) for the positioning buckle (42) to be fixed is provided on the top surface of the valve seat (2).

6. The puncture device with fascia suturing function according to claim 5, characterized in that: The positioning buckles (42) are symmetrically arranged on both sides of the guide rod (3) in the radial direction.

7. The puncture device with fascia suturing function according to claim 1, characterized in that: A plurality of positioning strips (23) are arranged at equal intervals on the top surface of the valve seat (2) along its circumference, and a positioning groove (43) for correspondingly locking the plurality of positioning strips (23) is provided on the bottom surface of the sealing cover (4).

8. The puncture device with fascia suturing function according to claim 1, characterized in that: Four guide channels (5) are provided, wherein two guide channels (5) whose outlet ends are symmetrically located on both radial sides of the guide rod (3) form a channel group, and the guide channels (5) in the two channel groups have different degrees of inclination.

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