CN201350089Y

CN201350089Y - Vascular blockage clamp for selectively blocking hepatic blood inflow

Info

Publication number: CN201350089Y
Application number: CNU2009200677948U
Authority: CN
Inventors: 傅晓辉; 姚晓平; 储开建; 陆崇德
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-02-17
Filing date: 2009-02-17
Publication date: 2009-11-25
Anticipated expiration: 2019-02-17

Abstract

The utility model discloses a vascular blockage clamp for selectively blocking hepatic blood inflow, which comprises a clamp handle, a clip shaft and two clip arms; two clip arms are provided with perforations close to the clip shaft; two arc-shaped concave grooves in same size are respectively arranged on the inner sides of the two clip arms far from the clip shaft; two arc-shaped concave grooves are symmetrically arranged along the middle axis of the vascular blockage clamp; when the two clip arms close together, the two arc-shaped concave grooves form an ellipse concave groove. The vascular blockage clamp for selectively blocking hepatic blood inflow can block blood flow of portal vein, maintain hepatic artery blood flow to be smooth at the same time and effectively solve problem of selectively blocking hepatic blood inflow in hepatic surgery.

Description

Be used for selective resistance and break the vascular occlusion clamp of liver blood stream

[technical field]

This utility model relates to field of medical, particularly relates to a kind of vascular occlusion clamp that selective exclusion enters liver blood flow that is used for.

[background technology]

Liver is gone into the blood flow that portal vein in the liver blood stream can provide 70-80%, and Hepatic artery then provides the blood flow of 20-30%, because Hepatic artery oxygen tension height, therefore, Hepatic artery can provide the oxygen of liver 70-80%.In order to alleviate the liver injury of liver when the hepatic portal occlusion, surgery of liver doctor both domestic and external designed keep the confession of Hepatic artery blood go into the disconnected method of liver blood flow resistance.

After the portal vein blocking-up is opened in addition, containing antibacterial and endotoxic portal vein is the key factor that causes hepar damnification, inventor's imagination, before blocking-up is unclamped, earlier open hepatic artery blood flow makes hepatic artery blood flow be full of liver earlier, open again portal vein, can alleviate liver injury, this imagination has obtained the confirmation of inventor's clinical trial.

More than the improvement of two kinds of hepatic portal occlusion methods relate to all that optionally to go into the liver blood flow resistance disconnected, conventional way is that first anatomical isolation goes out Hepatic artery, cover band blocking-up then, this operating process more complicated has increased the risk and the difficulty of operation.Therefore, a kind of medical apparatus and instruments that can address the above problem easily and effectively of design is necessary.

[utility model content]

The purpose of this utility model provides a kind of vascular occlusion clamp that selective resistance is broken liver blood stream that is used for.This vascular occlusion clamp is the blocking door venous blood flow optionally, keeps the unimpeded of hepatic artery blood flow simultaneously.

The selective resistance that is used for provided by the utility model is broken the vascular occlusion clamp that liver blood flows, comprise pincers handle, folder axle and two jig arm, described two jig arm are closely pressed from both sides the axle place and are provided with perforation, described two jig arm respectively have an equal-sized arc groove away from the inboard at folder axle place, two arc grooves are symmetrical arranged along described vascular occlusion clamp axis, when two jig arm were closed up, two arc grooves were formed an oval-shaped groove.

As preferred implementation, described oval perforation is long axis length 0.8cm, the oval-shaped groove of minor axis length 0.4cm.

Described oval-shaped groove away from the end-to-end distance of an end distance jig arm of folder axle from being 1cm.

The end of described jig arm is made Passivation Treatment.

The length of described jig arm adapts to the width of hepatoduodenal ligament.

Compared to existing technologies, the vascular occlusion clamp that selective resistance provided by the utility model is broken liver blood stream is the blocking door venous blood flow optionally, keep hepatic artery blood flow unimpeded simultaneously, solved the problem that needs the selective resistance Herba Clinopodii in the operation on liver effectively, can alleviate infringement, improve the safety and the success rate of operation liver.

[description of drawings]

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is a side view of the present utility model.

[specific embodiment]

Below in conjunction with example and with reference to accompanying drawing this utility model is further described.

Referring to Fig. 1, be structural representation of the present utility model, a kind of selective resistance that is used for is broken the vascular occlusion clamp that liver blood flows, comprise

pincers handle

10,20 and two

jig arm

31,32 of folder axle, pincers handle 10 is provided with the element 11 that is used to regulate the vascular occlusion clamp degree of tightness,

jig arm

31,32 nearly folder axles 20 places of vascular occlusion clamp are provided with perforation 40, and perforation 40 threading that are used for performing the operation are fixed or riveted and fixed.

Jig arm

31,32 respectively has an equal-sized arc groove away from the inboard at folder axle 20 places, and two arc grooves are symmetrical arranged along the axis of vascular occlusion clamp, and when two

jig arm

31,32 were closed up, two arc grooves were formed an oval-shaped groove 33.

In this specific embodiment, oval-shaped groove 33 is a long axis length 0.8cm, the oval-shaped groove of minor axis length 0.4cm; Oval-shaped groove 33 away from the end-to-end distance of an end

distance jig arm

31,32 of folder axle 20 from being 1cm.

The end of described

jig arm

31,32 is made Passivation Treatment, to increase the safety in the operation.

The length of described

jig arm

31,32 adapts to the width of hepatoduodenal ligament.

The selective resistance that is used for that this utility model provides is broken the vascular occlusion clamp that liver blood flows, can adopt existing noinvasive vascular clamp is that improve on the basis, except that on existing noinvasive vascular clamp, having increased the oval-shaped groove 33, the length of

jig arm

31,32 is than the long 1.5cm of noinvasive vascular clamp commonly used in the prior art, the width that can adapt to hepatoduodenal ligament, the width of

jig arm

31,32 is also suitably adjusted simultaneously, has on average increased 1mm than existing noinvasive vascular clamp jig arm width.

Referring to Fig. 2, be side view of the present utility model, as seen from Figure 2,

jig arm

31,32 is bending and extends, to adapt to the width of hepatoduodenal ligament.

In clinical use, because hepatic arterial anatomical position is positioned at the left front edge of hepatoduodenal ligament, and portal vein is positioned at the trailing edge of hepatoduodenal ligament, and Hepatic artery pressure is more than 10 times of portal venous pressure, therefore can utilize their differences on the region of anatomy and pressure, use this utility model optionally to block and flow into liver blood.During operation, the oval-shaped groove 33 of vascular occlusion clamp is aimed at the Hepatic artery position, make Hepatic artery be positioned at oval-shaped groove 33, can realize keeping the simple portal vein blocking-up of hepatic artery blood flow; If desired Hepatic artery is together blocked, then adjusted the position of vascular occlusion clamp, make Hepatic artery not be positioned at oval-shaped groove 33, liver blood stream is gone in blocking-up fully.

The actual needs that this utility model is broken liver blood stream for the solution selective resistance provides safe and practical vascular occlusion clamp, has realized keeping the simple portal vein block function of hepatic artery blood flow.Simultaneously, under different surgical conditions, can also can use vascular clamp described in the utility model according to actual needs, adjust the position of vascular clamp, artery blood flow and portal venous flow are together blocked, can block fully and flow into liver blood.

The above only is a preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from this utility model design; can also make some improvements and modifications, these improvements and modifications also should be considered as in the protection domain of the present utility model.

Claims

1, a kind of selective resistance that is used for is broken the vascular occlusion clamp that liver blood flows, comprise pincers handle, folder axle and two jig arm, described two jig arm are closely pressed from both sides the axle place and are provided with perforation, it is characterized in that, described two jig arm respectively have an equal-sized arc groove away from the inboard at folder axle place, two arc grooves are symmetrical arranged along described vascular occlusion clamp axis, and when two jig arm were closed up, two arc grooves were formed an oval-shaped groove.

2, according to claim 1ly be used for the vascular occlusion clamp that selective resistance is broken hepatic blood, it is characterized in that described oval-shaped groove is long axis length 0.8cm, the oval-shaped groove of minor axis length 0.4cm.

3, according to claim 2ly be used for the vascular occlusion clamp that selective resistance is broken hepatic blood, it is characterized in that, described oval-shaped groove away from the end-to-end distance of an end distance jig arm of folder axle from being 1cm.

4, according to claim 1ly be used for the vascular occlusion clamp that selective resistance is broken hepatic blood, it is characterized in that the end of described jig arm is made Passivation Treatment.

5, the vascular occlusion clamp that selective resistance is broken hepatic blood, the width of the length adaptation hepatoduodenal ligament of described jig arm of being used for according to claim 1.