CN216724654U

CN216724654U - Anti-slip tissue clamp for liver minimally invasive surgery

Info

Publication number: CN216724654U
Application number: CN202122216709.3U
Authority: CN
Inventors: 胡捷; 周俭; 王晓颖
Original assignee: Zhongshan Hospital Fudan University
Current assignee: Zhongshan Hospital Fudan University
Priority date: 2021-09-14
Filing date: 2021-09-14
Publication date: 2022-06-14
Anticipated expiration: 2031-09-14

Abstract

The utility model relates to an anti-slip tissue clamp for minimally invasive liver surgery, which comprises a first clamping arm and a second clamping arm, wherein one end of the first clamping arm and one end of the second clamping arm are provided with hinged parts and are hinged through the hinged parts; the other ends of the first clamping arm and the second clamping arm are provided with lock catch parts which are detachably connected; the opposite occlusal surfaces of the first clamping arm and the second clamping arm are provided with longitudinal anti-slip threads extending along the length direction of the tissue clamp. Compared with the prior art, the utility model optimizes the traditional tissue clamp and avoids the tissue clamp from slipping during or after the operation by adopting the longitudinal anti-slip lines.

Description

Anti-slip tissue clamp for liver minimally invasive surgery

Technical Field

The utility model belongs to the technical field of tissue clamps, and relates to an anti-slipping tissue clamp for minimally invasive liver surgery, which is used for clamping and closing blood vessels or bile ducts of a liver section during laparoscopic hepatectomy.

Background

Minimally invasive surgery is a surgical development trend and has the characteristics of small wound, quick recovery, few body surface scars and the like. Among them, the surgical methods of laparoscopic cholecystectomy, laparoscopic appendectomy, etc. have replaced the traditional laparotomy and become the standard ones. The proportion of laparoscopic hepatectomy has increased year after year relative to open surgery. In the minimally invasive hepatectomy, only a puncture outfit (Trocar) of 0.5-1.2cm is placed on the body surface, an operating instrument and a lens enter the abdominal cavity through a Trocar small hole, and due to the limited operating space, the important pipelines (blood vessels, biliary tracts and the like) on the section of the liver cannot be ligated by silk threads like an open surgery after being separated. The current clinical common method is to use a tissue clip to clamp, use a clip applier to carry the tissue clip into the abdominal cavity, clamp the important pipeline to be cut off, and then cut off. The existing commonly used tissue clamp ham-o-lock has the problems of large volume and poor skid resistance, can cause wound bleeding or gallbladder leakage due to the falling of the clamp, even needs secondary operation for hemostasis, and brings great risk to the operation. To reduce this risk, many surgeons often clip two tissue clips over the severed end of the vessel, resulting in an obstructed operative field, increased expense and waste.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an anti-slipping tissue clamp for minimally invasive liver surgery, which avoids slipping of the tissue clamp in surgery or after surgery by adopting longitudinal anti-slipping lines.

The purpose of the utility model can be realized by the following technical scheme:

an anti-slip tissue clamp for minimally invasive liver surgery comprises a first clamping arm and a second clamping arm, wherein one end of the first clamping arm and one end of the second clamping arm are provided with a hinge part and are hinged through the hinge part; the other ends of the first clamping arm and the second clamping arm are provided with lock catch parts which are detachably connected; the occlusal surfaces of the first clamping arm and the second clamping arm which are opposite to each other are provided with longitudinal anti-slip threads which extend along the length direction of the tissue clamp.

Furthermore, first arm lock on be equipped with first occlusal surface, second arm lock on be equipped with the second occlusal surface, first occlusal surface and second occlusal surface set up relatively, first occlusal surface and second occlusal surface on all be equipped with vertical anti-skidding line.

Furthermore, a plurality of longitudinal anti-slip lines are arranged on the first occlusion surface and the second occlusion surface.

Furthermore, a plurality of longitudinal anti-slip threads on the first occlusal surface and the second occlusal surface are arranged at equal intervals.

Further, the longitudinal anti-slip lines on the first occlusal surface are convex lines, the longitudinal anti-slip lines on the second occlusal surface are concave lines, and the convex lines are matched with the concave lines.

Or the longitudinal anti-slip lines on the first occlusal surface and the second occlusal surface are both convex lines, and the longitudinal anti-slip lines on the first occlusal surface and the longitudinal anti-slip lines on the second occlusal surface are arranged in a staggered mode.

Further, the length of the longitudinal anti-slip threads on the first occlusion surface is 80% -100% of the length of the first clamping arms, and the length of the longitudinal anti-slip threads on the second occlusion surface is 80% -100% of the length of the second clamping arms.

Further, the length of the tissue clip is 5.5-6.5 mm.

Preferably, the tissue clip is 6mm in length.

Furthermore, the first clamping arm and the second clamping arm are both arc-shaped or linear.

Compared with the prior art, the utility model optimizes the traditional tissue clamp, adopts the longitudinal anti-slip pattern, avoids the slippage of the tissue clamp in or after operation and further reduces the length of the tissue clamp. Wherein:

1) the longitudinal anti-slip lines are adopted, so that the friction force is increased in the slipping direction of the tissue clamp, and the slipping is avoided.

2) Aiming at the characteristic that the liver section pipeline is thin, the length of the tissue clamp is shortened, so that the external force action points are reduced, and the probability of accidental slippage under the action of external force in the operation and after the operation is reduced.

3) The volume of the tissue clamp is reduced, so that the shielding of surrounding tissues is reduced, and the view of the liver section is clearer.

4) The portal vein, biliary tract and artery in the liver section run together, and these vessels are often separately clamped off. The reduced tissue clamp in the confined space more reliably clamps the conduits side-by-side without obstructing or interfering with each other.

Drawings

FIG. 1 is a schematic view of a conventional tissue clip after occluding a blood vessel;

FIG. 2 is a schematic view of a conventional lateral anti-slip pattern on the occlusal surface of a tissue clip;

FIG. 3 is a schematic view of the anti-slippage tissue clip of the present invention after occluding a blood vessel;

FIG. 4 is a schematic view of the longitudinal anti-slip pattern on the engaging surface of the anti-slip tissue clamp of the present invention;

the notation in the figure is:

1-first clamping arm, 2-second clamping arm, 3-hinge part, 4-lock catch part, 5-longitudinal anti-slip pattern, 6-transverse anti-slip pattern and 7-blood vessel broken end.

Detailed Description

The utility model is described in detail below with reference to the figures and specific embodiments. The present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.

As shown in figure 1, the texture on the occlusal surface of the traditional tissue clip is a transverse anti-slip texture 6 (shown in figure 2) vertical to the length direction of the tissue clip, and the transverse anti-slip texture 6 has a strong anti-slip function for the sliding vertical to the length direction of the blood vessel, and has a weak anti-slip force for the sliding parallel to the length direction of the blood vessel. In clinical practice, the tissue clip has a locking function after being clamped, so that the tissue clip cannot slip off due to sliding in the direction perpendicular to the length direction of the blood vessel, and the tissue clip cannot slip off from the broken end 7 of the blood vessel due to sliding in the direction parallel to the length direction of the blood vessel. In the utility model, as shown in fig. 3 and 4, the occlusal surface of the anti-slip tissue clamp is provided with longitudinal anti-slip lines 5, and the longitudinal anti-slip lines 5 have stronger anti-slip function in the direction parallel to the length direction of the blood vessel.

In addition, the length of the minimum model of the traditional tissue clamp is 9.5mm, the blood vessel or biliary tract of the liver section is thin, the overlong tissue clamp easily provides stress points for external force action, the tissue clamp slips easily due to mistaken touch during operation in the operation, and postoperative respiratory motion and gastrointestinal peristalsis can also act on the overlong tissue clamp to cause postoperative slippage. At the same time, an excessively long tissue clip may obscure the view around the severed vessel. The utility model shortens the length of the tissue clamp to 5.5-6.5mm, and effectively avoids the problems.

Example 1:

as shown in fig. 3, an anti-slip tissue clamp for minimally invasive liver surgery comprises a first clamping arm 1 and a second clamping arm 2, wherein one end of the first clamping arm 1 and one end of the second clamping arm 2 are provided with a hinge portion 3 and are hinged through the hinge portion 3; the other ends of the first clamping arm 1 and the second clamping arm 2 are provided with lock catch parts 4 and are detachably connected through the lock catch parts 4; the opposite occlusal surfaces of the first clamping arm 1 and the second clamping arm 2 are provided with longitudinal anti-slip threads 5 extending along the length direction of the tissue clamp.

Wherein, be equipped with first occlusal surface on the first arm lock 1, be equipped with the second occlusal surface on the second arm lock 2, first occlusal surface and second occlusal surface set up relatively, all are equipped with vertical anti-skidding line 5 on first occlusal surface and the second occlusal surface. A plurality of longitudinal anti-skid grains 5 are arranged on the first occlusal surface and the second occlusal surface. The plurality of longitudinal anti-slip lines 5 on the first occlusal surface and the second occlusal surface are arranged at equal intervals. The longitudinal anti-slip lines 5 on the first occlusal surface are convex lines, the longitudinal anti-slip lines 5 on the second occlusal surface are concave lines, and the convex lines are matched with the concave lines. The length of the longitudinal anti-skid thread 5 on the first occlusal surface is 80-100% of the length of the first clamping arm 1, and the length of the longitudinal anti-skid thread 5 on the second occlusal surface is 80-100% of the length of the second clamping arm 2.

The tissue clamp is divided into different models according to different lengths, and the tissue clamp comprises 5.5-6.5 mm.

First arm lock 1 and second arm lock 2 all are the arc.

The use process of the tissue clip of the embodiment is as follows:

1) an appropriate tissue clip is selected according to the structural size of the tissue tract.

2) Holding the clip applier, accurately placing the head of the clip applier into the base for holding the tissue clip, confirming that the head is vertical to the base, slightly pressing the tissue clip until the click sound is heard.

3) The clip applier is removed from the base to ensure that the tissue clip is securely held within the occlusal surfaces of the clip applier.

4) The blood vessel or biliary tract to be cut off is dissociated in 360 degrees, and other surrounding tissues are removed. The clip applier carries the tissue clip to contain the tract to be severed within the occlusal surface of the clip. Sufficient force is applied to the handles of the clip applier to cause the gripping surfaces to close, thereby locking the clip until a click is heard, the handles of the clip applier are released, the gripping surfaces of the clip applier return to a sufficiently large position, and the clip applier is withdrawn from the abdominal cavity.

5) And (3) if the reserved side pipeline and the cut side pipeline are required to be clamped, repeating the steps 2) to 4) according to actual requirements, further installing one tissue clamp on the disconnected pipeline, and cutting the pipeline between the two tissue clamps.

Example 2:

in this embodiment, the longitudinal anti-slip lines 5 on the first occlusal surface and the second occlusal surface are both convex lines, and the longitudinal anti-slip lines 5 on the first occlusal surface and the longitudinal anti-slip lines 5 on the second occlusal surface are arranged in a staggered manner. The length of the tissue clip is 6 mm. First arm lock 1 and second arm lock 2 all are the linear type. The rest is the same as example 1.

The embodiments described above are intended to facilitate the understanding and use of the utility model by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make modifications and alterations without departing from the scope of the present invention.

Claims

1. An anti-slip tissue clamp for minimally invasive liver surgery, which comprises a first clamping arm (1) and a second clamping arm (2),

one ends of the first clamping arm (1) and the second clamping arm (2) are provided with hinged parts (3) and hinged through the hinged parts (3);

the other ends of the first clamping arm (1) and the second clamping arm (2) are provided with lock catch parts (4) which are detachably connected through the lock catch parts (4);

the occlusion surfaces of the first clamping arm (1) and the second clamping arm (2) which are opposite are provided with longitudinal anti-slip threads (5) which extend along the length direction of the tissue clamp.

2. The anti-slipping tissue clamp for minimally invasive liver surgery according to claim 1, characterized in that a first occlusal surface is arranged on the first clamping arm (1), a second occlusal surface is arranged on the second clamping arm (2), the first occlusal surface and the second occlusal surface are arranged oppositely, and longitudinal anti-slipping threads (5) are arranged on the first occlusal surface and the second occlusal surface.

3. The anti-slipping tissue clamp for minimally invasive liver surgery according to claim 2, wherein a plurality of longitudinal anti-slipping lines (5) are arranged on each of the first occlusal surface and the second occlusal surface.

4. The anti-slip tissue clamp for minimally invasive liver surgery according to claim 3, wherein the longitudinal anti-slip threads (5) on the first occlusal surface and the second occlusal surface are arranged at equal intervals.

5. The anti-slippage tissue clamp for minimally invasive liver surgery according to claim 2, wherein the longitudinal anti-slippage lines (5) on the first occlusal surface are convex lines, the longitudinal anti-slippage lines (5) on the second occlusal surface are concave lines, and the convex lines are matched with the concave lines.

6. The anti-slip tissue clamp for minimally invasive liver surgery according to claim 2, wherein the longitudinal anti-slip threads (5) on the first occlusal surface and the second occlusal surface are both convex threads, and the longitudinal anti-slip threads (5) on the first occlusal surface and the longitudinal anti-slip threads (5) on the second occlusal surface are arranged in a staggered manner.

7. The anti-slip tissue clamp for minimally invasive liver surgery according to claim 2, characterized in that the length of the longitudinal anti-slip threads (5) on the first occlusal surface is 80% -100% of the length of the first clamping arms (1), and the length of the longitudinal anti-slip threads (5) on the second occlusal surface is 80% -100% of the length of the second clamping arms (2).

8. The anti-slippage tissue clamp for minimally invasive liver surgery according to claim 1, wherein the length of the tissue clamp is 5.5-6.5 mm.

9. The anti-slippage tissue clamp for minimally invasive liver surgery according to claim 8, wherein the length of the tissue clamp is 6 mm.

10. The anti-slipping tissue clamp for minimally invasive liver surgery according to claim 1, wherein the first clamping arm (1) and the second clamping arm (2) are both arc-shaped or linear.