CN210962160U - Forceps for grading and blocking superior and inferior vena cava of liver - Google Patents

Abstract

The graded blocking forceps for the superior vena cava and the inferior vena cava of the liver comprise blocking forceps heads and operating forceps, wherein the blocking forceps heads comprise two arm rods, each arm rod consists of a front arm part, a connecting part and a back arm part, the connecting part is connected between the back end of the front arm part and the front end of the back arm part, the front ends of the back arm parts of the two arm rods are hinged through a pin shaft, a torsional spring is mounted on the pin shaft, the back arm parts of the two arm rods are arranged side by side, the back end of the back arm part is provided with a connecting post, the opposite sides of the front arm parts of the two arm rods are respectively provided with a raised transverse grain, the transverse grains of the front arm parts of the two arm rods are arranged in a staggered mode, an upper baffle is arranged on the upper side of the front arm part of the upper arm rod, a lower baffle is arranged on the lower side of the front arm part of the; to sum up, adopt the utility model discloses press from both sides diaphragm when can avoiding pressing from both sides closed patient inferior vena cava, reduce sheltering from in the operation field of vision, improve medical personnel's operation success rate.

Description

Forceps for grading and blocking superior and inferior vena cava of liver

Technical Field

The utility model belongs to the technical field of the medical treatment, concretely relates to pincers are blocked in grades to inferior vena cava on liver.

Background

The liver transplantation operation is a surgical treatment means for implanting a healthy liver into the body of a patient through an operation to ensure that the liver function of the patient with the end-stage liver disease is well recovered, the operation can be divided into orthotopic liver transplantation and ectopic liver transplantation according to different liver implantation parts, the orthotopic liver transplantation can be divided into classical liver transplantation and piggyback liver transplantation according to different matching modes of a vein for the liver and a receptor inferior vena cava, the classical orthotopic liver transplantation is to completely cut off the diseased liver and then inoculate a new liver, at the moment, the inferior vena cava of the patient needs to be completely cut off and then sutured again, and the piggyback liver transplantation is to perform end-side matching of the inferior vena cava for the liver and the receptor inferior vena cava.

In the classic in-situ liver transplantation operation, because the inferior vena cava needs to be completely separated, then the diseased liver is completely cut off, the bleeding in the operation process besides the anesthesia accident exists in the death risk of the patient, the inferior vena cava is the thickest blood vessel of the human body and is directly connected with the heart, more than 70% of the blood of the human body is recovered, the length of the superior vena cava and the inferior vena cava of the liver is about 2-3cm, the superior vena cava and the inferior vena cava of the liver need to be blocked by forceps firstly, because the forceps of the superior vena cava and the inferior vena cava of the liver are extremely short and the bleeding speed is extremely high, if the blockage does not completely cause the massive bleeding of the patient, a large amount of blood in the patient body instantly flows out, the death rate is extremely high, the existing inferior vena cava blockage is usually to be blocked by firstly using one curved forceps from the same side and then, the clamping is needed for 2 times and the ligation is carried out for 2 times, the operation is affected by the handle of the curved forceps which is placed in the body cavity of the patient, the diaphragm is above the superior vena cava and the inferior vena cava of the liver, and the vessel is not tightly clamped if the diaphragm is clamped at the same time when the vein is clamped.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve the weak point among the prior art, provide a pincers are blocked in grades to inferior vena cava on the liver, adopt this pincers are blocked in grades to inferior vena cava on the liver press from both sides the diaphragm when can avoiding clamping patient inferior vena cava, reduce sheltering from in the operation field of vision, improve medical personnel's operation success rate.

In order to solve the technical problem, the utility model adopts the following technical scheme that the hepatic superior vena cava and inferior vena cava grading blocking forceps comprise a blocking forceps head and an operating forceps, the blocking forceps head is in L type bending shape and comprises two arm rods, each arm rod consists of a front arm part, a connecting part and a rear arm part, the connecting part is in an arc-shaped bent rod structure, the connecting part is connected between the rear end of the front arm part and the front end of the rear arm part, the front ends of the rear arm parts of the two arm rods are hinged through a pin shaft, a torsion spring is installed on the pin shaft, the rear arm parts of the two arm rods are arranged side by side, the rear end of the rear arm part is provided with a connecting column, the opposite sides of the front arm parts of the two arm rods are provided with raised transverse grains, the transverse grains of the front arm parts of the two arm rods are arranged in a staggered manner, the upper baffle is arranged on the upper side of the front arm part of the upper arm rod, the;

the front end of the operating forceps is provided with a connecting sleeve which is matched with a connecting column at the rear end of the rear arm part of the blocking forceps head, and the connecting sleeve can be sleeved on the connecting column.

A stop block is arranged on the left side surface of the rear end of the front arm part of the blocking forceps head.

Adopt above-mentioned technical scheme, the utility model discloses following beneficial effect has: the blocking forceps head and the operation forceps are used in a matched mode, medical workers use the operation forceps to be sleeved on a connecting column at the rear end of the rear arm of the blocking forceps head through a connecting sleeve at the front end of the operation forceps, the front arm of the blocking forceps head is opened to clamp the inferior vena cava of a patient from the right side, an upper baffle plate and a lower baffle plate of the blocking forceps head can press the diaphragm, the diaphragm is opened to clamp the diaphragm when the inferior vena cava is prevented from being clamped, so that the inferior vena cava is not tightly clamped, then the other blocking forceps head is clamped by the operation forceps head from the left side to clamp the inferior vena cava of the patient, the front end of the front arm of the other blocking forceps head abuts against a stop block of the first blocking forceps head, and then the two blocking forceps heads are fixed by using a lock catch, so that the; raised transverse lines are arranged on the opposite sides of the front arm parts of the two arm rods of the blocking forceps head, so that the nourishing blood vessels in the inferior vena cava can pass through the vein wall, and the difficulty in healing of the anastomotic stoma after the inferior vena cava is anastomosed due to the fact that a certain section of the nourishing blood vessels is clamped for a long time is prevented; the two blocking forceps heads are required to clamp the inferior vena cava of a patient all the time in the operation process, are small in size, cannot shield the operation vision of a doctor, and cannot influence the operation of the doctor.

To sum up, adopt the utility model discloses press from both sides diaphragm when can avoiding pressing from both sides closed patient inferior vena cava, reduce sheltering from in the operation field of vision, improve medical personnel's operation success rate.

Drawings

FIG. 1 is a schematic structural view of a blocking clamp head according to the present invention;

FIG. 2 is a schematic view of the structure of the operating pliers of the present invention;

fig. 3 is a cross-sectional view taken at a-a in fig. 1.

Detailed Description

As shown in fig. 1-3, the utility model discloses a hierarchical blocking forceps for hepatic superior vena cava and inferior vena cava, including blocking forceps head and operation pincers 1, blocking forceps head is L type crooked form, blocking forceps head includes two armed levers, each armed lever comprises front arm 2, connecting portion 3 and back arm 4, connecting portion 3 is arc knee structure, connecting portion 3 is connected between front arm 2 rear end and back arm 4 front end, back arm 4 front end of two armed levers is articulated mutually through round pin 5, install the torsional spring on round pin 5, back arm 4 of two armed levers sets up side by side, back arm 4 rear end is equipped with spliced pole 6, the relative side of front arm 2 of two armed levers all is equipped with bellied striae 7, and the striae 7 of front arm 2 of two armed levers is crisscross setting, the upper baffle 8 is equipped with to the upper arm 2 upside of upper armed lever, the lower baffle 9 is equipped with lower baffle 9 under the front arm 2 of lower armed lever, upper baffle 8 and lower baffle 9 all set up towards the left side slope of arm 2;

the front end of the operating forceps 1 is provided with a connecting sleeve 10, the connecting sleeve 10 is matched with a connecting column 6 at the rear end of the rear arm part 4 of the blocking forceps head, and the connecting sleeve 10 can be sleeved on the connecting column 6.

A stop block 11 is arranged on the left side surface of the rear end of the front arm 2 of the blocking forceps head.

When the forceps head is not clamped, the front arm portion 2 is engaged by the urging force of the torsion spring.

When the utility model is used, a medical worker firstly holds the operation forceps 1 by hand, so that the connecting sleeve 10 arranged at the front end of the operation forceps 1 is connected with the connecting column 6 at the rear end of the rear arm part 4 of the blocking forceps head, thereby the blocking forceps head is clamped from the right side of the lower vena cava of a patient, when the clamping is closed, the lower vena cava is clamped after the diaphragm is opened by adopting the upper baffle plate 8 and the lower baffle plate 9 of the blocking forceps head, after the clamping is finished, the operation forceps 1 is loosened, the blocking forceps head is kept at the lower vena cava clamping part of the patient, the medical worker then uses the connecting sleeve 10 of the forceps mouth at the front end of the operation forceps 1 to be connected with the connecting column 6 at the rear end of the rear arm part 4 of another blocking forceps head, the blocking forceps head is clamped from the left side of the lower vena cava of the patient, the lower vena cava is clamped after the diaphragm is opened by using the upper baffle plate 8 and the lower baffle plate 9 of the blocking forceps head, wherein the front end 2 of, the relative positions of the two blocking forceps heads are kept unchanged, and then the two blocking forceps heads are locked by the lock catch to perform the operation.

The present embodiment is not intended to limit the shape, material, structure, etc. of the present invention in any form, and all of the technical matters of the present invention belong to the protection scope of the present invention to any simple modification, equivalent change and modification made by the above embodiments.

Claims (2)

1. The graded blocking forceps for the superior vena cava and the inferior vena cava are characterized by comprising blocking forceps heads and operating forceps, wherein the blocking forceps heads are L-shaped bent shapes and comprise two arm rods, each arm rod consists of a front arm part, a connecting part and a rear arm part, the connecting part is of an arc-shaped bent rod structure, the connecting part is connected between the rear end of the front arm part and the front end of the rear arm part, the front ends of the rear arm parts of the two arm rods are hinged through a pin shaft, a torsion spring is mounted on the pin shaft, the rear arm parts of the two arm rods are arranged side by side, the rear end of the rear arm part is provided with a connecting column, the opposite sides of the front arm parts of the two arm rods are provided with raised transverse grains, the transverse grains of the front arm parts of the two arm rods are arranged in a staggered mode, the upper side of the front arm part of the upper arm rod is provided with an upper baffle, the lower side of;

the front end of the operating forceps is provided with a connecting sleeve which is matched with a connecting column at the rear end of the rear arm part of the blocking forceps head, and the connecting sleeve can be sleeved on the connecting column.

2. The hepatic superior and inferior vena cava staged occlusion clamp of claim 1, wherein: and a stop block is arranged on the left side surface of the rear end of the front arm part of the blocking forceps head.

Images