A retracted abdominal wall port closure and its delivery

Abstract

The present application relates to the technical field of punch closure, in particular to an inward abdominal wall punch closure and its delivery device. The device comprises a closure disc and a pull rod. The upper and lower surfaces of the closure disc are respectively a peritoneal surface facing the peritoneum and a peritoneal cavity surface facing the peritoneal cavity. At least two inwardly inclined barb nails are arranged on the peritoneal surface of the closure disc. The lower end of the pull rod is connected to the center of the closure disc. A sleeve is arranged on the pull rod. The upper and lower ends of the pull rod extend out of the inner hole of the sleeve. A ratchet is arranged on the lower end of the sleeve. The ratchet is located in the inner circle of the barb nails. When the ratchet rotates, the ratchet teeth contact the barb nails and can spread the barb nails outward. The barb nails can tighten and fix the closed linear punch, generate compression hemostasis, and make the punch be in a tension-free state. The punch closure operation is simple and reliable, the precision of the punch closure is enhanced, the amount of bleeding is reduced, the healing effect of the punch is improved, and the crack of the punch is prevented.

Description

Technical Field

[0001] This invention relates to the field of puncture hole sealing technology, and in particular to an inward-retracting abdominal wall puncture hole sealing device and its delivery device. Background Technology

[0002] A trocar is a hole made in the abdominal wall by a trocar used in laparoscopic surgery; it is a type of abdominal surgical incision. Poor closure of the trocar can lead to a trocar hernia. Trocar hernias are mainly caused by incomplete closure of the trocar in the abdominal wall, infection of the trocar, or trocar dehiscence.

[0003] Except for the rectus abdominis muscle, the fibers of the abdominal wall muscles, fascia, and sheaths generally run transversely. Longitudinal incisions inevitably sever these fibers, making it easy for sutures to slip between the fibers during suturing. Furthermore, the sutured tissue is frequently subjected to transverse traction from the muscles, increasing the risk of trocar hole dehiscence. Moreover, because the trocar hole is tiny, typically only 5-15 mm in diameter, suturing is very difficult. Forcibly pulling the wound edges together during suturing can cause tissue tearing, also leading to trocar hole hernia. Data shows that if the abdominal incision heals primarily after surgery, the incidence of incisional hernia is usually below 1%, but if infection occurs, the incidence can reach 10%; in cases of wound dehiscence, it can be as high as 30%. Literature indicates that trocar hole hernias not only easily lead to complications such as intestinal obstruction and incarcerated necrosis, forcing patients to undergo emergency surgical intervention, but also increase patient mortality. Summary of the Invention

[0004] This application addresses the shortcomings of existing manufacturing technologies by providing an internally retractable abdominal wall puncture hole closure device and its delivery system. This device can perform puncture hole closure operations simply and reliably, ensuring that the puncture hole heals in a tension-free state, thereby enhancing the precision of puncture hole closure, reducing bleeding from the puncture hole, improving the healing effect, and preventing puncture hole hernia caused by incomplete closure.

[0005] The technical solution adopted in this invention is as follows:

[0006] An inward-facing abdominal wall puncture closure device includes a closure disc and a lifting rod. The upper and lower surfaces of the closure disc are a peritoneal surface facing the peritoneum and a peritoneal surface facing the abdominal cavity, respectively. At least two barbs inclined inward are provided on the peritoneal surface of the closure disc. The lower end of the lifting rod is engaged at the center of the closure disc. A sleeve is fitted onto the lifting rod, with the upper and lower ends of the lifting rod extending out of the inner hole of the sleeve. A ratchet is provided at the lower end of the sleeve, located on the inner circle of the circumference where the barbs are located. When the ratchet rotates, the ratchet teeth contact the barbs and can push the barbs outward.

[0007] Furthermore, the lifting rod has a flat cross-section, and a limiting block is fixed to the upper end of the lifting rod.

[0008] Furthermore, a through mounting hole is provided at the center of the enclosed disc, and two locking blocks are provided on the side of the lower end of the lifting rod. The two locking blocks are symmetrically arranged around the lifting rod, and the lower end faces of the two locking blocks are flush with the lower end face of the lifting rod. The shape formed by the connection of the lower end faces of the two locking blocks and the lower end face of the lifting rod matches the cross-sectional shape of the mounting hole, allowing the lower end of the lifting rod and the two locking blocks to be inserted into the mounting hole from top to bottom. Two recessed axial locking grooves are provided on the lower end face of the enclosed disc, located at the left and right ends of the mounting hole, respectively. On the side, after the lower end of the lifting rod and the two locking blocks enter the mounting holes, rotating the lifting rod allows the two locking blocks to be screwed into the two axial locking grooves respectively. The upper end faces of the two locking blocks and the lower end faces of the two axial locking grooves respectively contact each other, achieving axial locking of the lifting rod position. The bottom end faces of the two axial locking grooves are respectively provided with recessed circumferential locking grooves, and the upper end faces of the two locking blocks are respectively provided with upward protruding locking blocks. The two locking blocks can be respectively matched and connected in the two circumferential locking grooves to achieve circumferential locking of the lifting rod position.

[0009] Furthermore, the sealed disk is provided with multiple vertically connected drug-loading holes, which can be used to load drugs.

[0010] Furthermore, the lower end face of the closed disc is fastened with a fastening plate, which can close the lower end of the buckle hole.

[0011] Furthermore, two protruding fastening posts are provided on the lower end face of the closed disc, and two through-hole fastening holes are provided on the fastening plate. The two fastening posts can be fastened and connected to the two fastening holes respectively. Multiple drug loading holes are provided on the fastening plate, and the multiple drug loading holes and multiple drug carrying holes are connected one-to-one.

[0012] A conveyor for an inward-facing abdominal wall puncture closure device includes a central conveying pipe. The upper and lower ends of the central conveying pipe are respectively connected to an upper conveying sleeve and a lower conveying sleeve. The central conveying pipe, the upper conveying sleeve, and the lower conveying sleeve are integrally formed, and the inner diameter of the upper and lower conveying sleeves is larger than the inner diameter of the central conveying pipe. A sleeve is installed inside the central conveying pipe, and a lifting rod is installed inside the sleeve. The lower end of the lifting rod is engaged with a closure disc, which is located inside the lower conveying sleeve. A limiting block is connected to the upper end of the sleeve, and a card is mounted on the sleeve. The lower end face of the card contacts the inner end face of the upper conveying sleeve, and the upper end face of the card contacts the limiting block.

[0013] The beneficial effects of this invention are as follows:

[0014] The barbed nail of this invention can tighten and securely fix a puncture hole that has been closed into a linear opening, and generate a pressure hemostatic effect, keeping the puncture hole in a tension-free state. This allows for a simple and reliable puncture hole closure operation, enhancing the precision of puncture hole closure, reducing bleeding, improving the healing effect, and preventing puncture hole dehiscence. The invention also features a drug-loaded hole on the sealing disc, providing conditions for local drug delivery and anti-infection. This establishes a simple, effective, safe, and reliable method for preventing puncture hole bleeding and puncture hole hernia, which has significant value and clinical significance for improving laparoscopic techniques, reducing the workload of doctors, and protecting the quality of life and health of patients. The snap-fit ​​plate of this invention can seal the snap-fit ​​hole, preventing the snap-fit ​​block from falling out. Furthermore, the invention uses the rotation of a ratchet to control the state of the barbed nail, making operation convenient and quick. Attached Figure Description

[0015] Figure 1 This is a perspective view of the present invention.

[0016] Figure 2 This is a schematic diagram of the assembly of the lifting rod and sleeve of the present invention.

[0017] Figure 3 This is a perspective view of the lifting rod of the present invention.

[0018] Figure 4 This is a front perspective view of the closed disk of the present invention.

[0019] Figure 5 This is a perspective view of the back of the closed disk of the present invention.

[0020] Figure 6 This is a half-sectional view of the closure conveyor of the present invention.

[0021] The components are as follows: 10. Enclosed disc; 11. Drug loading hole; 12. Mounting hole; 13. Axial locking groove; 14. Circumferential locking groove; 15. Barb; 16. Fastening plate; 17. Fastening post; 18. Drug loading hole; 20. Lifting rod; 21. Snap-fit ​​block; 22. Locking block; 30. Sleeve; 31. Ratchet; 32. Limiting block; 40. Intermediate conveying pipe; 41. Lower conveying sleeve; 42. Upper conveying sleeve; 43. Card. Detailed Implementation

[0022] The specific embodiments of the present invention will now be described with reference to the accompanying drawings.

[0023] like Figure 2 and Figure 4As shown, an inward-adjustable abdominal wall puncture closure device mainly includes a closing disc 10 and a lifting rod 20. The closing disc 10 is a circular hard sheet with a thickness of 0.5-5 mm. The upper and lower surfaces of the closing disc 10 are the peritoneal surface facing the peritoneum and the peritoneal surface facing the abdominal cavity, respectively. At least two inwardly inclined barbs 15 are provided on the peritoneal surface of the closing disc 10, and the at least two barbs 15 are evenly distributed along the circumference. The lower end of the lifting rod 20 is engaged at the center of the closing disc 10. The lifting rod 20 can drive the closing disc 10 to adhere to the abdominal wall, causing the barbs 15 to penetrate and fix into the abdominal wall, thus closing the abdominal wall puncture hole. The surface of the lifting rod 20 has graduations along its length, which can visually indicate the depth of the lifting rod 20 into the abdominal cavity. The cross-section of the lifting rod 20 is a flat structure, and the long axis of the cross-section of the lifting rod 20 is parallel to the surgical incision line.

[0024] like Figure 4 As shown, a through mounting hole 12 is provided at the center of the enclosed disk 10. Figure 2 As shown, two locking blocks 21 are provided on the lower end side of the lifting rod 20. The two locking blocks 21 are symmetrically arranged on the left and right sides with the lifting rod 20 as the center, and the lower end face of the two locking blocks 21 is flush with the lower end face of the lifting rod 20. The shape formed by the connection of the lower end face of the two locking blocks 21 and the lower end face of the lifting rod 20 matches the cross-sectional shape of the mounting hole 12, allowing the lower end of the lifting rod 20 and the two locking blocks 21 to be inserted into the mounting hole 12 from top to bottom. Two recessed axial locking grooves 13 are provided on the lower end face of the closed disc 10. The two axial locking grooves 13 are located on the left and right sides of the mounting hole 12, respectively. After the lower end of the lifting rod 20 and the two locking blocks 21 enter the mounting hole 12, rotating the lifting rod 20 allows the two locking blocks 21 to be screwed into the two axial locking grooves 13 respectively. The upper end face of the two locking blocks 21 and the lower end face of the two axial locking grooves 13 respectively contact each other, achieving axial locking of the lifting rod 20. The bottom surfaces of the two axial locking grooves 13 are respectively provided with recessed circumferential locking grooves 14, and the upper surfaces of the two snap-fit ​​blocks 21 are respectively provided with upward protruding locking blocks 22. The two locking blocks 22 can be respectively fitted into the two circumferential locking grooves 14 to achieve circumferential locking of the lifting rod 20.

[0025] like Figure 5 and Figure 6 As shown, the closed disk 10 is provided with multiple vertically penetrating drug-carrying holes 11, which can be used to load drugs and control local infection.

[0026] like Figure 1 and Figure 2As shown, a sleeve 30 is fitted onto the lifting rod 20. The upper and lower ends of the lifting rod 20 extend out of the inner hole of the sleeve 30, respectively. A ratchet 31 is provided at the lower end of the sleeve 30. The ratchet 31 is located on the inner circle of the circumference of the barb 15, and the ratchet 31 can rotate under the drive of the sleeve 30. When the ratchet 31 rotates, the ratchet teeth contact the barb 15 and can push the barb 15 outward, so that the barb 15 is in a vertical state. When the ratchet teeth of the ratchet 31 leave the barb 15, they lose support for the barb 15, and the barb 15 is in a tilted inward state. During the process of the barb 12 returning to the tilted and tilted state, the puncture hole that has been closed into a linear opening is tightened and fixed, and a pressure hemostatic effect is generated, so that the puncture hole is in a tension-free state outward. After the puncture hole is closed, the lifting rod 20 can be pulled out of the body together with the sleeve 30. The lifting rod 20 is the central axis of rotation of the sleeve 30.

[0027] like Figure 1 and Figure 2 As shown, a limiting block 32 is fixedly connected to the upper end of the lifting rod 20. The limiting block 32 is used for limiting the movement when the rod is installed inside the conveyor.

[0028] like Figure 4 and Figure 5 As shown, the lower end face of the sealing disc 10 is fastened to a fastening plate 16, which closes the lower end of the mounting hole 12. Two protruding fastening posts 17 are provided on the lower end face of the sealing disc 10, and two through-hole fastening holes are provided on the fastening plate 16. The two fastening posts 17 can be fastened into the two fastening holes respectively. Multiple drug-feeding holes 18 are provided on the fastening plate 16, and these holes correspond one-to-one with the multiple drug-carrying holes 11.

[0029] like Figure 6 As shown, a delivery device for an inward-retracting abdominal wall puncture closure device mainly includes a middle delivery tube 40. The upper and lower ends of the middle delivery tube 40 are respectively connected to an upper delivery sleeve 42 and a lower delivery sleeve 41. The middle delivery tube 40, upper delivery sleeve 42, and lower delivery sleeve 41 are integrally formed, and the inner diameters of the upper delivery sleeve 42 and lower delivery sleeve 41 are larger than the inner diameter of the middle delivery tube 40. A sleeve 30 is installed inside the middle delivery tube 40, and a lifting rod 20 is installed inside the sleeve 30. The lower end of the lifting rod 20 is engaged with a closing disc 10, which is located inside the lower delivery sleeve 41. A limiting block 32 is connected to the upper end of the sleeve 30, and a card 43 is fitted onto the sleeve 30. The lower end face of the card 43 contacts the inner end face of the upper delivery sleeve 42, and the upper end face of the card 43 contacts the limiting block 32. The inward-retracting abdominal wall puncture closure device is pre-installed in the delivery device before use and is inserted into the abdominal cavity through a puncture device during use.

[0030] The working principle of this invention is as follows: After laparoscopic surgery, when closing the abdomen, a delivery device pre-loaded with an inward-adjustable abdominal wall puncture hole closure device and matching the inner diameter of the puncture device is inserted into the puncture device until it reaches its limit. The puncture device and delivery device are pulled out of the puncture hole, and the sleeve 30 is rotated to its final position, so that the barbed nail 12 is supported in a vertical position. The lifting rod 20 is lifted until resistance is felt (so that the closing plate 10 is close to the abdominal wall), and the length of the lifting rod 20 in the puncture hole (scale) is recorded. The long axis of the cross-section of the lifting rod 20 is checked and adjusted to be parallel to the surgical incision line. The incision skin is squeezed to close the incision, and at the same time, the lifting rod 20 is pulled upward with force to allow the barbed nail 12 to pierce the abdominal wall tissue. The scale shows that shortening by one nail length means that it is fully inserted. The lifting rod 20 is pushed down without moving, confirming that the closing plate 10 is fixed. The sleeve 30 is rotated to remove the external support of the ratchet, so that the barbed nail 12 returns to the centripetal tilt position, and the puncture hole closed to the incision line is tightened tightly. Rotate the lifting rod 20 until it is disengaged from the sealing plate 10, and pull out the lifting rod 20 and the sleeve 30 together.

[0031] The above description is an explanation of the present invention and not a limitation thereof. The scope of the present invention is defined by the claims. Within the scope of protection of the present invention, any form of modification may be made.

Claims

1. An inwicking abdominal wall trocar closure device comprising a closure disc (10) and a pull rod (20), characterized in that: The upper and lower end faces of the closure disc (10) are respectively a peritoneal surface facing the peritoneum and a peritoneal cavity surface facing the peritoneal cavity, at least two inwardly inclined barb nails (15) are arranged on the peritoneal surface of the closure disc (10), and a pulling rod (20) is connected to the lower end of the closure disc (10).

2. An inwicking abdominal wall stoma seal as defined in claim 1, wherein: The cross section of the pulling rod (20) is flat, and a limiting block (32) is fixed to the upper end of the pulling rod (20).

3. An inwicking abdominal wall stoma seal as defined in claim 1, wherein: The center of the closure disc (10) is provided with an upper and lower through mounting hole (12), the lower end of the pulling rod (20) is provided with two clamping blocks (21), the two clamping blocks (21) are symmetrically arranged on the left and right sides of the pulling rod (20), the lower end faces of the two clamping blocks (21) are flush with the lower end face of the pulling rod (20), the shape formed by the lower end faces of the two clamping blocks (21) and the lower end face of the pulling rod (20) is consistent with the cross-sectional shape of the mounting hole (12), the lower end of the pulling rod (20) and the two clamping blocks (21) can be loaded into the mounting hole (12) from top to bottom, the lower end face of the closure disc (10) is provided with two recessed axial locking grooves (13), the two axial locking grooves (13) are respectively arranged on the side faces of the left and right ends of the mounting hole (12), after the lower end of the pulling rod (20) and the two clamping blocks (21) are loaded into the mounting hole (12), the pulling rod (20) is rotated, the two clamping blocks (21) can be respectively rotated into the two axial locking grooves (13), the upper end faces of the two clamping blocks (21) and the lower end faces of the two axial locking grooves (13) are respectively in contact, thereby achieving axial locking of the position of the pulling rod (20), recessed circumferential locking grooves (14) are respectively arranged on the bottom end faces of the two axial locking grooves (13), upward protruding locking blocks (22) are respectively arranged on the upper end faces of the two clamping blocks (21), and the two locking blocks (22) can be respectively fitted and connected in the two circumferential locking grooves (14), thereby achieving circumferential locking of the position of the pulling rod (20).

4. An inwicking abdominal wall stoma seal as defined in claim 3, wherein: A plurality of upper and lower through drug loading holes (11) are arranged on the closure disc (10), and the drug loading holes (11) can load drugs.

5. An inwicking abdominal wall stoma seal as defined in claim 4 wherein: The lower end face of the closure disc (10) is connected with a buckling plate (16), and the buckling plate (16) can close the lower end of the clamping hole (12).

6. An inwicking abdominal wall stoma seal as defined in claim 5, wherein: The lower end face of the closure disc (10) is provided with two protruding buckling columns (17), the buckling plate (16) is provided with two upper and lower through buckling holes, the two buckling columns (17) can be respectively connected in the two buckling holes, a plurality of lower drug loading holes (18) are arranged on the buckling plate (16), and the plurality of lower drug loading holes (18) and the plurality of drug loading holes (11) are in one-to-one correspondence.

7. A delivery device for an inwardly converging abdominal wall stoma closure device as claimed in any one of claims 1 to 6, characterised in that: It includes intermediate conveying pipe (40), upper and lower ends of which are connected with upper conveying sleeve (42) and lower conveying sleeve (41) respectively, the intermediate conveying pipe (40), the upper conveying sleeve (42) and the lower conveying sleeve (41) are integrally formed, and the inner cavity diameters of the upper conveying sleeve (42) and the lower conveying sleeve (41) are larger than that of the intermediate conveying pipe (40), a sleeve (30) is arranged in the intermediate conveying pipe (40), a pull rod (20) is arranged in the sleeve (30), the lower end of the pull rod (20) is clamped with a closing disc (10), the closing disc (10) is arranged in the lower conveying sleeve (41), the upper end of the sleeve (30) is connected with a limiting block (32), the sleeve (30) is sleeved with a card (43), the lower end surface of the card (43) contacts the inner end surface of the upper conveying sleeve (42), and the upper end surface of the card (43) contacts the limiting block (32).

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