CN2710558Y

CN2710558Y - Vascular blocking forceps for microsurgery

Info

Publication number: CN2710558Y
Application number: CN 200420060069
Authority: CN
Inventors: 吴军; 王贵波
Original assignee: First Affiliated Hospital of TMMU
Current assignee: First Affiliated Hospital of TMMU
Priority date: 2004-06-29
Filing date: 2004-06-29
Publication date: 2005-07-20
Anticipated expiration: 2014-06-29

Abstract

The utility model belongs to the field of medical apparatus and instrument, relating to a vascular blocking forceps for microsurgery, which comprises a forceps body and a forceps head connected with the end part of the forceps body. The forceps body is split into forceps handles and forceps handgrips, and the forceps handles are crossed right and left and connected via a forceps axle to form a main blocking forceps; the forceps head is provided with a certain arc bending degree, an included angle between the tangent line of the initial point of the arc forceps head and the forceps body is from 0 DEG to 90 DEG and the initial point is the joint point of the arc forceps head and the forceps body; the forceps handgrips are provided with 3-5 occlusal teeth; the forceps handles are longer, with the smaller area of a cross section and a certain of elasticity; the occlusal surface of the forceps head is provided with the aggregation of blunt and tiny round dots and triangle or diamond convex dots, and the blood vessel is avoided sliding. The forceps is applicable to blocking vessels for microsurgery, in particular to vascular end side anastomosis, and is used for the upper end and the lower end of the blood vessel for temporary blocking in order to cause the microsurgery operation of the blocked part in the middle of the blood vessel to be convenient; the vascular blocking forceps for microsurgery has the advantages of simple structure, convenient usage, no harm to organizations, favorable blood flow blocking effect, etc.

Description

The microsurgery vascular occlusion clamp

Technical field

This utility model belongs to medical instruments field, relates to a kind of microsurgery blood vessel blocking that is used for, and particularly blocks the blood vessel upper and lower side, is blocked the vascular occlusion clamp that microsurgical procedure is carried out at the position in the middle of making things convenient for blood vessel.

Background technology

Carry out organ and tissue transplantation with studies of microvascular anastomosis, with rebuild organ dysfunction and repair tissue damaged be widely used in clinical, microsurgery is also extensive use in zoopery, as the rat kidney transplantation operation of microscopically operation, liver transplantation, heart transplant operation etc., but, no matter be clinical practice or experimentation, at present still lack a kind of usefulness that is simple and easy to, the effectively operating theater instruments of blocking blood flow for the blood vessel end-to-side anastomosis.Present vascular clamp is used for the bloodstream blocking at single position still can be accepted, and when still being expert at the blood vessel end-to-side anastomosis, receptor blood vessel upper and lower side is all used vascular clamp, and vascular clamps can't be fixed, and movable easily, this affects to operation undoubtedly.The two microsurgery zone is generally all smaller, and existing vascular clamp is because volume is bigger, and storing is difficult for, and this has caused certain difficulty to operation.The three, the contact surface of existing vascular clamp itself and blood vessel is the plane, when operation very easily because operation cause vascular clamp slip, take off mistake, thereby make animal increases of losing blood, influence transplanting quality.At last, present microsurgery vascular clamp adopts simple fixation pressure mode, is difficult to implement blocking-up at the blood vessel of different sizes with the vascular clamp of same dynamics and performs the operation, and particularly thicker slightly tremulous pulse is difficult to reach the blocking blood flow purpose with existing vascular clamp.Bloodstream blocking when therefore, pressing for a kind of effective blood vessel blocking apparatus at present and be used for microsurgery.

Summary of the invention

The purpose of this utility model is at existing blood vessel blocking technology above shortcomings, provide a kind of easy to use, haemostatic effect is certain, fixing blood vessel makes it to be difficult for sliding, and does not damage the microsurgery vascular occlusion clamp of blood vessel again.

The purpose of this utility model is achieved in that a kind of microsurgery vascular occlusion clamp, comprises the binding clip that caliper is connected with its end, and caliper is divided into pincers handle and pincers handle, this blocking-up of pincers handle left and right sides interconnection formation pincers, and the cross point is the pincers axle.Described binding clip has certain arc camber, and the tangent line of arc binding clip starting point and the angle of caliper are 0 °～90 °, are preferably 45 °, and this starting point is the junction point of arc binding clip and caliper, is convenient to the blood vessel top and the bottom are blocked simultaneously.

Described pincers handle rear portion for pincers, and be provided with tooth engaged relatively, tooth engaged is made of 3～5 teeth, and is still gapped in the middle of the binding clip occlusal surface when fastening first tooth, when fastening last 1 tooth, the just complete interlock of binding clip and occlusal surface.The design of pincers handle is longer, and its cross section is less, and adopting has certain elastic material.The occlusal surface of binding clip is the set of blunt small round dot, triangle or rhombus salient point, so that the blood vessel that contacts with occlusal surface is difficult for sliding.

Because this utility model has adopted above structure, especially arc binding clip design, the vascular occlusion clamp of making can be blocked the blood vessel top and the bottom simultaneously, and the caliper angle different with binding clip can be suitable for the microsurgery blood vessel end-to-side anastomosis operation under the different visuals field; The anti-skid structure that has of the binding clip occlusal surface of this vascular occlusion clamp can prevent to be blocked the slip of blood vessel in addition, and tooth engaged adopts multiple tooth design, can adopt different blocking-up dynamics according to blood vessel thickness difference.Moreover, in the design of pincers handle, adopt the thinner elastomeric material in cross section, make the dynamics transmission of tooth engaged that certain buffering be arranged, can reach the purpose of controlling binding clip occlusal surface dynamics well, avoid damage to blood vessel.As seen, the utlity model has simple in structure, easy to use, advantage such as damaged tissue, blocking blood flow be not effective.

Concrete structure of the present utility model is further provided by following embodiment and accompanying drawing thereof.

Description of drawings

Fig. 1 this utility model overall structure front schematic view

Fig. 2 this utility model overall structure side schematic view

Sketch map when Fig. 3 this utility model is used for the blood vessel end-to-side anastomosis.

Fig. 4 this utility model binding clip occlusal surface anti-skid structure enlarged diagram A, B, C.

The specific embodiment

Further specify structure of the present utility model below in conjunction with drawings and Examples:

See also Fig. 1 and Fig. 2, this utility model by about two

pincers handle

3A, 3B interconnections form, the cross point is pincers axle 2, pincers handle rear portion for

pincers

5A, 5B, constitute caliper with clamping handle.That the upper end of caliper connects be binding

clip

1A, 1B, the curved structure of binding

clip

1A, 1B, and to an end bending, the tangent line of the mistake arc binding clip starting point S junction point of caliper (promptly with) and the angle of caliper are about 45 °.Pincers are having tooth engaged 4A, 4B on 5A, the 5B, when mutual interlock first tooth of tooth engaged 4A, 4B, and not interlock of binding

clip

1A, 1B, when tooth engaged 4A, 4B are snapped to last tooth, the complete interlock in binding clip side.

With Fig. 3 is the example explanation: use this utility model that receptor's blood vessel is fixed, its block function is realized that by binding

clip

1A, 1B its blocking-up dynamics realizes that by the interlock number of teeth the thicker blood vessel interlock number of teeth is less than thinner blood vessel.In the centre of binding

clip

1A, 1B arcuate structure is vasculature part 6 to be coincide, this utility model promptly relies on

arcual binding clip

1A, 1B to reach well secured to receptor's blood vessel upper and lower side, rely on simultaneously

pincers handle

3A, 3B and pincers are reached the operation of 5A, 5B and treat the purpose that anastomosis of blood vessel 6 well exposes, so that operation technique.

Consult A, B, the C of Fig. 4: this utility model binding clip occlusal surface is the set of blunt small round dot, triangle salient point or rhombus salient point, forms anti-skid structure, can prevent that hemostatic tube slides.

But this utility model extensive use the blood vessel blocking in the microsurgery, be particularly useful for the blood vessel end-to-side anastomosis.

Claims

1. microsurgery vascular occlusion clamp, comprise the binding clip that caliper is connected with its end, caliper is divided into pincers handle and pincers handle, this blocking-up of pincers handle left and right sides interconnection formation pincers, the cross point is the pincers axle, it is characterized in that: described binding clip has certain arc camber, and the tangent line of arc binding clip starting point and the angle of caliper are 0 °～90 °, and this starting point is the junction point of arc binding clip and caliper.

2, vascular occlusion clamp according to claim 1 is characterized in that: the tangent line of arc binding clip starting point and caliper and angle be 45 °.

3, vascular occlusion clamp according to claim 1 and 2 is characterized in that: pincers are being provided with tooth engaged, and tooth engaged is 3～5.

4. vascular occlusion clamp according to claim 1 and 2 is characterized in that: described pincers handle is longer, and the cross section is less, by having certain elastic material.

5. vascular occlusion clamp according to claim 1 and 2 is characterized in that: the occlusal surface of binding clip has blunt small round dot, triangle or the set of rhombus salient point.