CN2430951Y

CN2430951Y - Microtrauma surgical needle holder

Info

Publication number: CN2430951Y
Application number: CN 00243788
Authority: CN
Inventors: 王鹏; 李浩然
Original assignee: 王大璞
Priority date: 2000-07-24
Filing date: 2000-07-24
Publication date: 2001-05-23
Anticipated expiration: 2010-07-24

Abstract

The utility model relates to a needle holder for a minimally invasive surgery which is composed of a fixed jaw, a movable jaw, a long rod, and a gripping head. The front ends of the fixed jaw and the movable jaw are hinged; a shell tube is arranged on the outside of the long rod; a fixed claw of the gripping head is fixed on the front end of the shell tube; the middle part (a fulcrum) of a movable claw of the gripping head is hinged on the fixed claw; the long rod is hinged on a force point of the movable claw; a push rod is fixed on the front part of the fixed jaw; the push rod is hinged with the long rod. The utility model with accurate and reliable operation fills the blank of the technical field.

Description

The minimally invasive surgery needle holder

This utility model relates to a kind of minimally invasive surgery needle holder, main usefulness for operation.

Existing needle holder is jaw type, and the function end is more roomy, and the folding range of activity is bigger, and the activity space that is occupied is bigger.Its weak point is: hand-held unstable, funtion part is long, and gripping member is very inconvenient, and rotation is inconvenient.Very incompatible in the micro-wound surgical operation operation.Can only be applied to general common traditional operation.

The purpose of this utility model is to fill up the blank of this area and provides a kind of holding to take steadily, operate good with result of use accurately and reliably minimally invasive surgery needle holder.

The purpose of this utility model can reach by following measure: this utility model is made up of fixed pincers, moving pincers, stock and chuck, fixed pincers and moving pincers front end are hinged, stock has package outward, the package front end is fixed with the fixed claw of chuck, the middle part of the movable claw of chuck (fulcrum) is articulated on the fixed claw, the force of movable claw is hinged with stock, clamps the front portion surely and is fixed with push rod, and push rod and stock are hinged.

Surely clamping the front portion has concave station and convex arc tooth bar, and the concave arc tooth bar engagement of convex arc tooth bar and handle has projection behind the handle, and there is shell fragment the projection outside.

Have the rear end to be individually fixed between fixed pincers and the moving pincers and decide pincers and the inboard shell fragment of moving pincers, two shell fragments intersect forwardly and connect.

There is the finger arc in the fixed pincers and the moving pincers outside.

Fig. 1 is total figure of the present utility model.

The accompanying drawing piece number is represented:

1, clamps 2 surely, refers to arc 3, package 4, fixed claw

5, movable claw 6, stock 7, moving pincers 8, shell fragment

9, convex arc tooth bar 10, handle 11, concave arc tooth bar 12, projection

13, shell fragment 14, arc push rod 15, concave station 16, push rod

The utility model is described in further detail below in conjunction with embodiment and accompanying drawing:

Fig. 1 represents structure of the present utility model, mainly by clamp 1 surely, moving pincers 7, stock 6 and chuck form.Chuck comprises fixed claw 4 and movable claw 5.Surely clamping 1 outside has the finger arc of using for fingerhold 2, and fixed pincers middle part is fixed with convex arc tooth bar 9, clamps the front portion surely and is fixed with package 3, and the package front end is fixedly connected with fixed claw 4.Movable claw 5 middle parts (fulcrum) are articulated on the fixed claw, movable claw rear portion (force) hinged stock 6 front ends.

Moving pincers 7 outsides are the same with fixed pincers, and the finger arc of using for fingerhold 2 is arranged, the shell fragment 8 that has front end to intersect between fixed pincers and the moving pincers, and the shell fragment rear end is fixed in two shell fragments respectively with screw and is decided pincers and the moving inboard of clamping.The shell fragment effect is that pincers are resetted.There is the hole of passing for convex arc tooth bar 9 moving pincers front portion, is hinged with the handle 10 that thrust is used behind the hole, and the handle front end has concave arc tooth bar 11.For handle is resetted, be provided with projection 12 in handle front end outside, moving pincers inboard is provided with shell fragment 13, and the elastic force of shell fragment pushes back projection so that handle is resetted.For anti-stop pincers and fixed pincers mutually by too near, be fixed with arc push rod 14 in the anterior inboard of moving pincers, fixed pincers are gone up corresponding site concave station 15.Surely clamp front end and be fixed with push rod 16.

During use, hand-held fixed pincers, and thrust out one's fingers and haul moving pincers near fixed pincers, before this, before needing convex arc tooth bar 9 pushed to.Push rod 16 promotes stock forward, draws close to clamp pin to fixed claw 4 to drive movable claw 5.

In order to clip lastingly, to unclamp the convex arc tooth bar, and concave arc tooth bar pinning convex arc tooth bar is got final product.In order to unclamp clamping, promptly allow movable claw rising (see figure 1), unclamp the above-mentioned finger that hauls moving pincers near fixed pincers, and get final product before the convex arc tooth bar pushed to.

The utility model contrast prior art has following advantage:

The grip part is divided more stable, manages effectively, and it is shaft-like that function part is, and the clip suture pin is firm, stable. Rotation easily is well suited for the during deep operation of deep stitching and miniature incision. It is narrow dark also to can be used for other otch Operation.

Claims

1, a kind of minimally invasive surgery needle holder, it is characterized in that, form by fixed pincers, moving pincers, stock and chuck, fixed pincers and moving pincers front end are hinged, and stock has package outward, and the package front end is fixed with the fixed claw of chuck, the middle part of the movable claw of chuck (fulcrum) is articulated on the fixed claw, the force of movable claw is hinged with stock, clamps the front portion surely and is fixed with push rod, and push rod and stock are hinged.

2, minimally invasive surgery needle holder according to claim 1 is characterized in that, clamping the front portion surely has concave station and convex arc tooth bar, and the concave arc tooth bar engagement of convex arc tooth bar and handle has projection behind the handle, and there is shell fragment the projection outside.

3, minimally invasive surgery needle holder according to claim 1 is characterized in that, has the rear end to be individually fixed between fixed pincers and the moving pincers and decides pincers and the inboard shell fragment of moving pincers, and two shell fragments intersect forwardly and connect.

4, minimally invasive surgery needle holder according to claim 1 is characterized in that, there is the finger arc in the fixed pincers and the moving pincers outside.