CN215994125U

CN215994125U - Hepatic portal blocking belt suitable for laparoscope

Info

Publication number: CN215994125U
Application number: CN202122026942.5U
Authority: CN
Inventors: 周俊晶; 储腊萍
Original assignee: Affiliated Hospital of Jiangnan University
Current assignee: Affiliated Hospital of Jiangnan University
Priority date: 2021-08-26
Filing date: 2021-08-26
Publication date: 2022-03-11
Anticipated expiration: 2031-08-26

Abstract

The utility model provides a portal blocking belt suitable for a laparoscope, which comprises a blocking belt main body, a through plug, a constraint latch, a fixing head, a through hole and a handle pinching head, wherein the blocking belt main body is provided with a through hole; the inserting head is arranged at the left end of the blocking belt main body; the restraint latch is a sawtooth belt and is arranged in the middle of the blocking belt main body; the fixed head is arranged at the right end of the blocking belt main body. The blocking belt main body can enter from the laparoscope sleeve due to the small diameter, the blocking belt main body surrounds the hepatoduodenal ligament and is rolled into a ring shape, the inserting head penetrates through the hole, and the sawtooth belt is positioned outside the ring. The plug is pulled, the blocking belt is tightened, the hepatic duodenal ligament is blocked, the self-locking effect between the saw teeth and the through hole of the blocking belt is formed by the elasticity of the rubber material of the blocking belt, and the blocking belt is prevented from loosening to achieve the effect of stably blocking the hepatic portal blood flow. The continuous serration configuration facilitates achieving and maintaining the desired degree of tightening. This block simple structure of area, easy and simple to handle does benefit to the operation under the chamber mirror, blocks effectually.

Description

Hepatic portal blocking belt suitable for laparoscope

Technical Field

The utility model belongs to the technical field of medical instrument auxiliary tools, and particularly relates to a portal blocking belt suitable for a laparoscope.

Background

The blood supply of the liver is very large, the blood volume of the liver is 14% of the total amount of a human body, and the blood flow of the liver of an adult is 1500-2000 ml per minute. The blood vessels of the liver are divided into hepatic and hepatic vessels. Entering hepatic vessels include the intrinsic hepatic artery and portal vein, which are dual vascular supplies. Hepatic vessels are the hepatic venous line. The hepatic artery is a nutritive blood vessel of the liver, 1/4 supplied by the hepatic blood is divided into branches at all levels to the arteriole between the leaflets after entering the liver from the hepatic artery, and arterial blood directly coming from the heart is input into the liver to mainly supply oxygen. The portal vein is a functional blood vessel of the liver; 3/4 for the liver comes from the portal vein, which branches into the lobular intervenosus after entering the liver, and the nutritious blood from the digestive tract is sent to the liver for "processing".

Nowadays, with the rapid development of medical technology, the current liver tumor treatment scheme is developed from traditional liver surgery treatment to multidisciplinary comprehensive treatment, but the preferred scheme for treating liver tumor is liver surgery, and the key point for safely implementing hepatectomy is to control the blood flow of liver.

Nowadays, with the rapid development of medical technology, the current treatment scheme for liver tumor and intrahepatic bile duct calculi is developed from traditional liver surgical operation treatment to multidisciplinary comprehensive treatment, and because liver blood supply is abundant, in liver operation, in order to reduce the condition of liver hemorrhage in the operation, the blood flow entering the liver is usually required to be blocked; the classical Pringle method, which is a complete interruption of hepatic blood flow, completely interrupts hepatic artery and portal vein blood flow of the first hepatic portal. This method is most widely used. In endoscopic surgery, it is common practice to: the urinary catheter or the rubber band is wound around the liver-duodenum ligament, and is tightened by fixing the urinary catheter or the rubber band by a ligation clip, but the most common errors of the method are as follows: firstly, the catheter or the rubber belt is often mistakenly tightened to actually achieve a satisfactory blocking pressure, secondly, the catheter or the rubber belt gradually slips off during blocking, but a surgeon does not know the blocking effect, so that the blocking effect is not obvious, and much bleeding still occurs during liver cutting. Furthermore, when the occlusion needs to be loosened, the ligature clip must be destructively unfastened, which is time consuming and wasteful.

In addition, chinese patent publication No. CN208492208U, the utility model provides a self-locking type portal blocking belt, comprising: the blocking rod, the blocking belt, the plurality of convex teeth and the tooth grooves; the blocking rod is provided with a blocking belt insertion groove for inserting the blocking belt; the tooth groove is arranged on the blocking rod and is communicated with the blocking belt insertion groove, and the tooth groove is matched with the convex tooth in shape and size; one end of the blocking belt is fixedly connected with the blocking rod; the other end of the blocking belt is a movable end and can be inserted into the blocking belt insertion groove; the outer side of the movable end of the blocking belt is uniformly and fixedly provided with a plurality of convex teeth, and the movable end of the blocking belt is adjustably fixed on the blocking rod through the adaptive connection of the convex teeth and the tooth grooves. However, the existing hepatic portal blocking belt has the problems that the use is inconvenient, an external clamp is required to be equipped for auxiliary blocking, the blocking effect is not ideal enough, the belt cannot be used under an endoscope and the like.

Therefore, it is necessary to develop a portal blocking belt suitable for laparoscopy.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems, the utility model provides a portal blocking belt suitable for a laparoscope, which aims to solve the problems that the existing portal blocking belt is inconvenient to use and often needs to be provided with an external clamp for auxiliary blocking, the blocking effect is not ideal and the belt is easy to loosen.

A hepatic portal blocking belt suitable for laparoscope comprises a blocking belt main body, a plug, a restraint latch, a fixing head, a penetrating hole and a handle pinching head; the right side of the blocking belt main body is cylindrical, and the left side of the blocking belt main body is semi-cylindrical;

the inserting head is integrally arranged at the left end of the blocking belt main body; the restraint latch is a sawtooth belt and is integrally arranged in the middle of the blocking belt main body; the fixed head is integrally arranged at the right end of the blocking belt main body; the penetrating hole is formed in the inner position of the right side of the fixing head; the handle pinching head is integrally arranged at the right end of the fixed head.

Preferably, the penetrating hole is an elliptical through hole, the long diameter of the hole is slightly larger than the diameter of the blocking belt main body, and the short diameter of the hole is slightly smaller than the diameter of the blocking belt main body.

Preferably, the penetrating plug is wedge-shaped, and the length of the penetrating plug is 1.5-2.5cm, preferably 2 cm; the fixing head is cylindrical; the shape of the left side of the blocking belt main body is a semi-cylinder, the diameter of the blocking belt main body is 3-5mm, and the diameter of the blocking belt main body is preferably 5 mm.

Preferably, the length of the restraint latch is 8-18cm, preferably 12cm, and the distance between the left end of the restraint latch and the right end of the plug is 1-5cm, preferably 3 cm.

Preferably, the fixing head is a long cylinder, and the length of the fixing head is 1-3cm, preferably 2 cm.

Preferably, the handle head is a flat strip which is easy to be pinched by an operation clamp under a cavity mirror, the thickness is 0.5-2mm, the length is 0.5-1.5cm, and the preferred length is 1 cm.

Preferably, the blocking belt body and other components are made of natural rubber.

Preferably, the penetration head drives the blocking belt main body to penetrate through the inside of the penetration hole.

Compared with the prior art, the utility model has the beneficial effects that:

the utility model discloses a mainly be applied to laparoscopic surgery, because of the diameter is no longer than 5mm, can get into in the 5mm laparoscopic sleeve. The main body of the blocking belt is coiled into a ring shape around the ligamentum hepatoduodenale, the inserting head is inserted into the hole, and the sawtooth belt is positioned outside the ring. The plug is pulled, the blocking belt is tightened, the hepatic duodenal ligament is blocked, the elasticity of the rubber material of the blocking belt is utilized to form self-locking between the saw teeth of the blocking belt and the through hole, and the blocking belt is prevented from loosening to achieve the effect of stably blocking the hepatic portal blood flow. The continuous serration configuration facilitates achieving and maintaining the desired degree of tightening. This block simple structure of area, easy and simple to handle does benefit to the operation under the chamber mirror, blocks effectually.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic top view of the present invention.

Fig. 3 is a front view of the present invention.

Fig. 4 is a schematic structural view of a use state of the present invention.

In the figure:

1. a blocking tape body; 2. inserting a plug; 3. restraining latch teeth; 4. a fixed head; 5. a penetration hole; 6. and (5) pinching the crown.

Detailed Description

The utility model is further described below with reference to the accompanying drawings:

example (b):

as shown in the attached drawings 1 to 4, the utility model provides a portal blocking belt suitable for laparoscopy, which comprises a blocking belt main body 1, an inserting head 2, a restraining latch 3, a fixing head 4, an inserting hole 5 and a handle pinching head 6;

the right side of the blocking belt main body is cylindrical, the left side of the blocking belt main body is semi-cylindrical, and the inserting head 2 is integrally arranged at the left end of the blocking belt main body 1; the restraint latch 3 is a sawtooth belt and is integrally arranged on one side of a semi-cylindrical part on the left side of the blocking belt main body 1, and the height of the latch is slightly larger than the radius of the cylinder; the fixed head 4 is arranged at the right end of the main blocking belt body 1, is cylindrical and has the diameter consistent with that of the main blocking belt body 1; the handle pinching head 6 is integrally arranged at the right end of the blocking belt body 1; the penetrating hole 5 is formed in the middle of the fixing head 4.

In the above embodiment, specifically, the penetration hole 5 is an elliptical through hole, the major diameter of the hole is slightly larger than the diameter of the main body 1 of the blocking tape, and the minor diameter of the hole is slightly smaller than the diameter of the main body of the blocking tape; the plug 2 drives the blocking belt main body 1 to penetrate through the penetrating hole 5, and the blocking belt main body 1 can smoothly penetrate through the penetrating hole 5 by using the elasticity of the rubber material.

In the above embodiment, specifically, the inserting head 2 is wedge-shaped, and the length is 1.5-2.5 cm; the shape of the left side of the blocking belt main body 1 is a semi-cylinder with the diameter of 3-5 mm.

Preferably, in the above embodiment, the length of the penetrating head 2 is 2 cm; the diameter of the left side of the blocking belt body 1 is 5 mm.

In the above embodiment, specifically, the length of the restraint latch 3 is 8-18 cm; the distance between the left end of the restraint latch 3 and the right end of the inserting head 2 is 1-5 cm.

Preferably, in the above embodiment, the length of the restraint latch 3 is 12 cm; the distance between the left end of the restraint latch 3 and the right end of the inserting head 2 is 3 cm.

In the above embodiment, specifically, the fixing head 4 is a long cylinder with a length of 1-3 cm.

In the above embodiment, the length of the fixing head 4 is 2 cm.

In the above embodiment, specifically, the pinching crown 6 is a flat strip shape which is easy to pinch by using a pair of jaws under a cavity mirror, and has a thickness of 0.5-2mm and a length of 0.5-1.5cm, preferably 1 cm.

In the above embodiment, the blocking belt body 1 and other components are made of natural rubber.

Principle of operation

When the blocking belt is used, the blocking belt can be placed in the laparoscope puncture sleeve due to the small diameter, the blocking belt main body surrounds the hepatoduodenal ligament and is rolled into a circular ring shape, the inserting head penetrates through the hole, the size of the ring shape of the blocking belt main body is adjusted, and the hepatoduodenal ligament is pressed to achieve the effect of blocking the blood flow entering the liver; the elasticity of the blocking belt rubber material is utilized to form self-locking between the saw teeth and the through holes of the blocking belt, so that the blocking belt is prevented from loosening, and the effect of stably blocking the hepatic portal blood flow is achieved. The continuous serration configuration facilitates achieving and maintaining the desired degree of tightening. The handle pinching head is beneficial to clamping operation under the endoscope. This block simple structure of area, tighten up and loosen and block swift convenience, do benefit to operation under the chamber mirror, block effectually.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A portal blocking belt suitable for laparoscope is characterized by comprising a blocking belt main body (1), an inserting head (2), a restraint latch (3), a fixing head (4), an inserting hole (5) and a handle pinching head (6);

the right side of the blocking belt main body (1) is cylindrical, and the left side of the blocking belt main body is semi-cylindrical; the plug (2) is integrally arranged at the left end of the blocking belt main body (1); the restraint latch (3) is a sawtooth belt and is integrally arranged on one surface of a semi-cylindrical part on the left side of the blocking belt main body (1), and the height of the latch is slightly larger than the radius of the cylinder; the handle pinching head (6) is integrally arranged at the right end of the blocking belt main body (1); the penetrating hole (5) is formed in the middle of the fixing head (4).

2. The portal blocking belt for laparoscopy according to claim 1, wherein the through hole (5) is an oval through hole, the long diameter of the hole is slightly larger than the diameter of the main body (1) of the blocking belt, and the short diameter of the hole is slightly smaller than the diameter of the main body (1) of the blocking belt; the inserting head (2) drives the blocking belt main body (1) to penetrate through the penetrating hole (5).

3. The hepatic portal blocking band suitable for laparoscopy as claimed in claim 1, wherein the insertion head (2) is wedge-shaped and has a length of 1.5-2.5 cm; the shape of the left side of the blocking belt main body (1) is a semi-cylinder with the diameter of 3-5 mm.

4. The hepatic portal blocking belt, which is suitable for laparoscopy as claimed in claim 3, wherein the length of the insertion head (2) is 2 cm; the diameter of the left side of the blocking belt main body (1) is 5 mm.

5. The portal blocking belt for laparoscopy according to claim 1, characterized in that the length of the restraining latch (3) is 8-18 cm; the distance between the left end of the restraint latch (3) and the right end of the inserting head (2) is 1-5 cm.

6. The hepatic portal blocking belt, suitable for laparoscopy according to claim 5, characterized in that the length of the restraining latch (3) is 12 cm; the distance between the left end of the restraint latch (3) and the right end of the inserting head (2) is 3 cm.

7. The portal blocking belt for laparoscopy as defined in claim 1, wherein the fixing head (4) is a long cylinder with a length of 1-3 cm.

8. The hepatic portal blocking belt, which is suitable for laparoscopy as claimed in claim 7, wherein the length of the fixing head (4) is 2 cm.

9. The portal blocking belt for laparoscope as defined in claim 1, wherein the pinching crown (6) is in the form of a flat strip that is easily pinched by fingers, and has a thickness of 0.5-2mm and a length of 0.5-1.5 cm.

10. The hepatic portal blocking belt suitable for laparoscopy as claimed in claim 1, wherein the blocking belt body (1) is made of natural rubber.