CN101987029B

CN101987029B - Cutting and suturing instrument having energy accumulating mechanism

Info

Publication number: CN101987029B
Application number: CN200910183609.6A
Authority: CN
Inventors: 陈望东; 周婧
Original assignee: Touchstone International Medical Science Co Ltd
Current assignee: Suzhou Tianchen International Medical Technology Co Ltd
Priority date: 2009-07-31
Filing date: 2009-07-31
Publication date: 2012-01-25
Anticipated expiration: 2029-07-31
Also published as: CN101987029A

Abstract

The invention provides a surgical cutting and suturing instrument. The cutting and suturing instrument comprises a nail cabin, a nail anvil, a nail push piece, a cutter and an energy accumulating mechanism, wherein the nail cabin and the nail anvil are oppositely arranged; the nail push piece and the cutter are moved relative to the nail cabin simultaneously; suturing nails are arranged in the nail cabin; the nail push piece pushes the suturing nails towards the nail anvil; the cutter cuts tissues off; the energy accumulating mechanism is fixedly connected with the nail push piece and the cutter and has initial energy accumulating and releasing states; and when the energy accumulating mechanism is switched between the two states, the nail push piece and the cutter is moved relative to the nail cabin. The instrument has the advantages that: the instrument is easy to use, can lighten the load of a doctor and can automatically finish suturing and cutting after the nail cabin and the nail anvil are closed.

Description

Stapler with accumulating mechanism

Technical field

The present invention relates to a kind of novel surgical incision stapler, belong to medical instruments field.

Background technology

Surgical incision stapler is widely used in being used in the surgical operation wound suture, interior tissue is sewed up and cutting.Typical surgical incision stapler has: the final suturing part that U.S. Pat 5275322 discloses is circular tubular type stapler, and perhaps the final suturing part of U.S. Pat 5065929 announcements is collinear linear type stapler.Above-mentioned apparatus generally has to be sewed up and two functions of cutting, when carrying out wound suture, excess tissue is excised.Existing linear type stapler also need manually promote push button after closed handle is with nail bin and nail anvil closure, and the pushing slice of nail and the cutting knife that are positioned at nail bin are advanced, and then accomplishes and sew up and cutting.But in some operations, thicker owing to organizing, manually promote push button, waste time and energy.

Summary of the invention

The objective of the invention is to solve above-mentioned technical problem, provide a kind of simple in structure, sew up the surgical incision stapler of cutting automatically.

The object of the invention is realized through following technical scheme:

A kind of stapler with accumulating mechanism comprises the nail bin and the nail anvil that are oppositely arranged, is disposed with suturing nail in the said nail bin; Said stapler also comprises the pushing slice of nail and the cutting knife that can move relative to said nail bin simultaneously; Said pushing slice of nail is pushed suturing nail to nail anvil, and said cutting knife will cut off at the tissue between nail bin and the nail anvil, and said stapler also comprises an accumulating mechanism; Said accumulating mechanism is fixedly connected with cutting knife with pushing slice of nail; Said accumulating mechanism has initial accumulation of energy and discharges two states, and when accumulating mechanism switched between two states, said pushing slice of nail and cutting knife moved with respect to nail bin.

Further, said accumulating mechanism is an elastic component.

Again further, said elastic component is a wind spring.Said stapler also comprises a knob that tightens up that is used to tighten up wind spring; Comprise the axle on the rotating handles that is arranged on rotationally on the stapler shell and the rotation axis that is vertically set on said rotating handles, said end, center clamping with wind spring.

Perhaps, said accumulating mechanism is the bent Metallic rod with memory function.

Again further, the end of said pushing slice of nail and cutting knife is fixed on the ejector pin bar simultaneously, said accumulating mechanism and ejector pin bar Joint.

Further, said ejector pin bar is provided with a recess, and the button that pivot is located on the stapler shell comprises a projection, and said projection extend in the recess.

Beneficial effect of the present invention is mainly reflected in: instrumentation is simple, can alleviate doctor's burden, after with nail bin and nail anvil closure, can accomplish automatically and sew up and cutting.

Description of drawings

Below in conjunction with accompanying drawing technical scheme of the present invention is described further:

Fig. 1: the structural representation of stapler of the present invention.

Fig. 2: the preferred embodiment of accumulating mechanism of the present invention is at the structural representation of starting stage.

The vertical view of Fig. 3: Fig. 2.

Wherein:

1 nail bin, 2 nail anvils, 3 closed handle

4 buttons, 5 wind springs, 6 ejector pin bars

7 pushing slice of nail, 9 recesses, 10 projections

12 13 rotating handleses of 11 pivots

The specific embodiment

The present invention has disclosed a kind of surgical incision stapler, is example with the side side type surgical incision stapler shown in Fig. 1, and it comprises upper and lower closed clamp and a closed handle 3.Be oppositely arranged one group of nail bin 1 and nail anvil 2 on the described upper and lower closed clamp.Described closed handle 3 can be moved between open position and make position; When closed handle is shown in an open position; Upper and lower closed clamp is in the position of opening relatively, and when closed handle was in the close position, upper and lower closed clamp was in sufficiently closed position.

As shown in Figure 2; Said stapler also comprises the pushing slice of nail 7 and cutting knife (not shown) that can move relative to said nail bin 1 simultaneously; The end of said pushing slice of nail 7 and cutting knife is fixed on the ejector pin bar 6 simultaneously; Said pushing slice of nail 7 is pushed the suturing nail that arrangement is arranged in the nail bin to nail anvil 2, and said cutting knife will cut off at the tissue between nail bin 1 and the nail anvil 2.

Stapler of the present invention also comprises an accumulating mechanism, and in preferred embodiment shown in Figure 2, accumulating mechanism is an elastic component, is a wind spring 5 specifically.One end of described wind spring 5 and ejector pin bar 6 Joints; It has initial accumulation of energy and discharges two states; When wind spring 5 was in initial energy accumulating state, ejector pin bar 6, pushing slice of nail 7 and cutting knife all were positioned at the first beginning and end firing position of stapler, when release wind spring 5 makes it slowly return to release conditions; One end of wind spring 5 will promote ejector pin bar 6, pushing slice of nail 7 and cutting knife and slowly move to the front end of stapler, realizes automatic sewing and cutting.

Further, said ejector pin bar 6 is provided with a recess 9, and the button of being located on the stapler shell through pivot 11 4 comprises a projection 10, and said projection 10 can extend in the recess 9.When wind spring 5 was in initial energy accumulating state, projection 10 extend in the recess 9, guaranteed that ejector pin bar 6 can not promoted by wind spring 5; When pressing the button 4, button 4 rotates around pivot 11, and projection 10 withdraws from from recess 9, and at this moment wind spring 5 will be out of shape to release conditions, will promote ejector pin bar 6, pushing slice of nail 7 and cutting knife and move with respect to nail bin 1.Stapler of the present invention can also be provided with one and make button 4 regressive springs, and a wind spring 5 tighten up knob.As shown in Figure 3, this tightens up knob and comprises the axle 12 on a rotating handles 13 and the rotation axis that is vertically set on rotating handles 13, and the end, center of said wind spring 5 is connected on this axle 12.After once operation finished, promptly wind spring 5 was in release conditions, operated rotating handles 13 this moment and made axle 12 rotations; Drive wind spring 5 then and all get back to the initial state that tightens up; This moment, button 4 was also got back to initial position, and promptly the state among Fig. 2 is changed nail bin 1 then and can be carried out seaming and cutting next time.

Accumulating mechanism can also be the bent Metallic rod with memory function except the wind spring in the preferred embodiment, is fixedly connected on the ejector pin bar 6; When initial energy accumulating state; It is arranged on for bending in the shell of stapler, and after the projection 10 of button 4 withdrawed from from recess 9, Metallic rod begins to release can be elongated; Promptly promote ejector pin bar 6, pushing slice of nail 7 and cutting knife and move, accomplish automatic seaming and cutting with respect to nail bin 1.

Accumulating mechanism also can make other form of springs; But because the distortion of spring is very fast, accident surgery might appear, so the stapler inherence is provided with a damping mechanism again; Rubber for example; It is elongated that spring can be out of shape slowly, realizes that ejector pin bar 6, pushing slice of nail 7 and cutting knife move with respect to the slow of nail bin 1, accomplish automatic seaming and cutting.

Accumulating mechanism of the present invention goes for multiple stapler, for example: side side type surgical incision stapler, tubular type stapler etc.; The perhaps anastomat of other types, for example: the linear suture device.All employings are equal to replacement or equivalent transformation and all technical schemes of forming all drop within the scope of requirement protection of the present invention.

Claims

1. A cutting and stapler with an energy storage mechanism, comprising a staple bin and an anvil that are oppositely arranged, and staples are arranged in the described staple bin, and the cutting and stapler also includes a stapler that can move relative to the staple bin at the same time Nail pushing piece and cutting knife, the said nail pushing piece pushes the staples to the nail anvil, the said cutting knife cuts off the tissue between the nail bin and the nail anvil, it is characterized in that: said cutting stapler also includes a storage The energy storage mechanism is fixedly connected with the push nail piece and the cutter. The energy storage mechanism has two states of initial energy storage and release. When the energy storage mechanism switches between the two states, the push nail piece and the cutting knife moves relative to the staple bin; the energy storage mechanism is an elastic member; the elastic member is a coil spring; the cutting and stapler also includes a tightening knob for tightening the coil spring, including a rotatable A rotary handle arranged on the shell of the cutter and stapler and a shaft vertically arranged on the rotation axis of the rotary handle, the shaft is engaged with the central end of the coil spring.

2. The cutter and stapler with energy storage mechanism according to claim 1, characterized in that: the ends of the nail pushing piece and the cutting knife are fixed on a nail pushing piece seat at the same time, and the energy storage mechanism and the nail pushing The film seat is fixedly connected.

3. The cutting stapler with an energy storage mechanism according to claim 2, wherein a notch is provided on the push nail seat, and the button pivotally arranged on the shell of the cutting stapler includes a protrusion, The protrusion protrudes into the recess. the