CN203852402U

CN203852402U - Porta hepatis blood vessel blocking forceps

Info

Publication number: CN203852402U
Application number: CN201320752229.1U
Authority: CN
Inventors: 李爱军; 袁航
Original assignee: Second Military Medical University SMMU
Current assignee: Second Military Medical University SMMU
Priority date: 2013-11-25
Filing date: 2013-11-25
Publication date: 2014-10-01
Anticipated expiration: 2023-11-25

Abstract

The utility model relates to the technical field of medical instruments and provides a pair of porta hepatis blood vessel blocking forceps. The pair of porta hepatis blood vessel blocking forceps comprises a pivot (1) and a pair of forceps clamp bodies hinged to each other through the pivot, wherein each forceps clamp body is divided into a front forceps clamp body arm (2) and a rear forceps clamp body arm (3); a blocking part (5) is arranged at the head of each front forceps clamp body arm, is arc-shaped and bent upwards, and is provided with saw teeth in concave-convex complementation with each other; each rear forceps clamp body arm is bent downwards; a finger ring (4) is arranged at the free end of each rear forceps clamp body arm; an included angle alpha between each front forceps clamp body arm and the corresponding rear forceps clamp body arm is greater than 90 degrees. An S-shaped blocking forceps structure is provided on the whole, conveniently extends into the portal vein of the porta hepatis part, is matched with the trend of the portal vein, and is applicable to blockage of porta hepatis blood vessels for hemi-hepatectomy; excessive bleeding during operation can be effectively avoided; injuries and postoperative complications are reduced.

Description

A kind of hepatic portal vascular occlusion clamp

Technical field

This utility model relates to medical instruments field, is specifically related to a kind ofly for hepatectomy, block pylic hepatic portal vascular occlusion clamp.

Background technology

Clinically, the treatment of liver neoplasm mainly adopts the method for excision, but liver resection need to the pylic blocking-up of row Hilar, easily causes the exhaustion of postoperative liver, and becomes one of Etiological of short-term death after operation on liver.Traditional blocking way has wound large, and complication is many, recovers the defect such as slow, and bad blocking way makes liver neoplasm excision have more risk simultaneously, therefore in the middle of practice, is badly in need of a kind of requirements of operation that pincers can meet shape, size and structure of blocking.

China Patent No. is CN201220252559.X, publication number is that the utility model patent of CN202723915U has disclosed the triple blocking-up pincers of a kind of biliary tract blood vessel lymphatic vessel, two clamp holder portions that comprise clamp portion and connect described clamp, clamp is divided into again elastic and clamping part, on clamping part, also has anti-slop serrations, the anti-slop serrations of this utility model has been realized good clamping effect, and easy and simple to handle, can realize meticulous blood vessel separation and vessel resection displacement.But the structure of this utility model can not meet the requirement of deep blocking-up, does not have crooked clamping part to be difficult to go deep into complicated Hilar portal vein and realizes blood vessel blocking; And the anti-slop serrations being arranged on the opposite face between clamping part is denation, while being used for vascular inflow occlusion blood vessel, may cause angiorrhexis.

In view of this, in the process of clinical manipulation, doctor needs a kind of structural bending in a hurry, can go deep into Hilar portal vein, and can not cause angiorrhexis while being used for vascular inflow occlusion blood vessel and can effectively realize the hepatic portal vascular occlusion clamp of hemostasis.

Summary of the invention

The purpose of this utility model is according to hepatoportal trend and residing position, a kind of hepatic portal vascular occlusion clamp of hemihepatectomy operation simple in structure, easy to use, applicable is provided, these blocking-up pincers not only can go deep into Hilar portal vein, effectively realize hemostasis, and can not cause angiorrhexis while being used for vascular inflow occlusion blood vessel.

Technical solutions of the utility model are as follows to achieve these goals:

A kind of hepatic portal vascular occlusion clamp, comprise a pivot and pass through this pivot knuckles pair of jaws limbs together, clamp limbs are divided into clamp limbs forearm and clamp limbs postbrachium two parts, the head of clamp limbs forearm is provided with blocking-up portion, blocking-up portion is curved to be bent upwards, blocking-up portion be provided with concavo-convex complementation apart from shape tooth; Clamp limbs postbrachium downward bending, the free end of clamp limbs postbrachium is provided with finger ring, and the angle α between clamp limbs forearm and clamp limbs postbrachium is greater than 90 °.

Preferably, in described blocking-up portion, be provided with cover.Described cover should adopt flexible plastic or soft rubber to make, further to protect blood vessel can not break in clamping process.

Preferably, near facies medialis brachii after the clamp limbs of finger ring, being provided with the tooth matching buckles.

Preferably, the angle α between clamp limbs forearm and clamp limbs postbrachium is 100 °～120 °.

Preferably, the entire length apart from shape tooth of the concavo-convex complementation in blocking-up portion is 1cm, facewidth 0.2cm, tooth depth 0.3cm.

The warp architecture of the arc-shaped bend structure of this utility model forearm head and clamp limbs postbrachium combines, a kind of blocking-up wrench structure of S shape is provided on the whole, be convenient to go deep into Hilar portal vein, and coordinate pylic trend, be applicable to block the hepatic portal blood vessel of hemihepatectomy, can effectively avoid intraoperative hemorrhage too much, reduce damage, and the generation of post-operative complication.Forearm head is blocking-up portion, be provided with concavo-convex complementation apart from shape tooth, can realize well block function, avoid Massive Bleeding or neoplasm metastasis.

This utility model has solved a difficult problem for operation on liver portal vein blood vessel blocking-up, and the semihepatectomy of carrying out liver neoplasm or hepatic haemangioma excision can better be implemented.To avoid intraoperative hemorrhage too much, reduce damage, and reduce the generation of post-operative complication.

Accompanying drawing explanation

Fig. 1 is overall structure schematic diagram of the present utility model;

Fig. 2 is the enlarged diagram of clamp limbs forearm of the present utility model;

Wherein: 1 is pivot; 2 is clamp limbs forearms; 3 is clamp limbs postbrachiums; 4 is finger ring; 5 is blocking-up portion; 6 is tooth button.

The specific embodiment

Now in conjunction with the accompanying drawings and embodiments, this utility model is described in detail.

Embodiment 1:

As illustrated in fig. 1 and 2, a kind of hepatic portal vascular occlusion clamp, comprise a pivot 1 and pass through this pivot knuckles pair of jaws limbs together, clamp limbs are divided into clamp limbs forearm 2 and clamp limbs postbrachium 3 two parts, the head of clamp limbs forearm 2 is provided with blocking-up portion 5, blocking-up portion is curved to be bent upwards, blocking-up portion be provided with concavo-convex complementation apart from shape tooth; Clamp limbs postbrachium 3 downward bendings, the free end of clamp limbs postbrachium 3 is provided with finger ring 4, and the angle α between clamp limbs forearm and clamp limbs postbrachium is 100 °.

Embodiment 2:

A hepatic portal vascular occlusion clamp, all the other are provided with cover with embodiment 1 in blocking-up portion 5.

At clamp limbs postbrachium 3 medial surface near finger ring 4, be provided with the tooth matching and buckle 6.

Angle α between clamp limbs forearm 2 and clamp limbs postbrachium 3 is 110 °.

Embodiment 3:

A hepatic portal vascular occlusion clamp, all the other are with embodiment 1, and the angle α between clamp limbs forearm 2 and clamp limbs postbrachium 3 is 120 °.

Clamp limbs forearm 2 head end circles are blunt, and the entire length apart from shape tooth of the concavo-convex complementation in blocking-up portion 5 is 1cm, facewidth 0.2cm, tooth depth 0.3cm.

Embodiment 4:

During clinical use, first tooth button 6 is unclamped, by finger ring, the blocking-up portion 5 of clamp limbs forearm 2 is clamped to the hepatoportal corresponding site that needs surgical hemostasis, then with tooth button 6, make two clamp limbs clamp and pin, thereby reach the object of blocking blood flow.

Below the preferred embodiment of this utility model having been created illustrates, but this utility model is created and is not limited to described embodiment, those of ordinary skill in the art also can make all modification being equal to or replacement under the prerequisite without prejudice to this utility model creative spirit, and the modification that these are equal to or replacement are all included in the application's claim limited range.

Claims

1. a hepatic portal vascular occlusion clamp, comprise a pivot (1) and pass through this pivot knuckles pair of jaws limbs together, clamp limbs are divided into clamp limbs forearm (2) and clamp limbs postbrachium (3) two parts, it is characterized in that, the head of clamp limbs forearm (2) is provided with blocking-up portion (5), blocking-up portion is curved to be bent upwards, blocking-up portion be provided with concavo-convex complementation apart from shape tooth; Clamp limbs postbrachium (3) downward bending, the free end of clamp limbs postbrachium is provided with finger ring (4), and the angle α between clamp limbs forearm (2) and clamp limbs postbrachium (3) is 100 °～120 °.

2. a kind of hepatic portal vascular occlusion clamp according to claim 1, is characterized in that, described blocking-up portion (5) is provided with cover.

3. a kind of hepatic portal vascular occlusion clamp according to claim 1 and 2, is characterized in that, clamp limbs postbrachium (3) medial surface of close finger ring (4) is provided with the tooth matching and buckles (6).

4. a kind of hepatic portal vascular occlusion clamp according to claim 1 and 2, is characterized in that, the entire length apart from shape tooth of the concavo-convex complementation in blocking-up portion (5) is 1cm, facewidth 0.2cm, tooth depth 0.3cm.