CN101869497A - Sewing and cutting machine - Google Patents

Abstract

Translated fromChinese

本发明提供了一种缝切器械，包括上、下钳夹，钉仓，钉砧，推钉片，切刀，以及击发片和推刀杆，所述钉仓内排列设置有缝合钉，所述击发片驱动所述推钉片将缝合钉推向钉砧，所述切刀在其移动的过程中将位于钉仓和钉砧之间的组织切断，所述推刀杆包括一个底面和第一顶面、第二顶面，所述第二顶面与第一顶面之间有高度差，所述第一顶面到底面的距离大于所述第二顶面到底面的距离。本发明的有益效果主要体现在：器械使用简单，推刀杆与推刀架之间的摩擦力大大减小，并且形成较大落差，确保推刀杆不会在后退的过程中从推刀架中滑出，从而确保器械的使用性能与安全性。

The invention provides a sewing and cutting instrument, which comprises upper and lower jaws, a staple magazine, an anvil, a nail pushing piece, a cutting knife, a firing piece and a knife pushing rod. The staples are arranged in the staple magazine. The firing piece drives the nail pushing piece to push the staples toward the anvil, and the cutting knife cuts off the tissue between the staple cartridge and the anvil during its movement, and the pushing knife bar includes a bottom surface and a second A top surface and a second top surface, there is a height difference between the second top surface and the first top surface, and the distance between the first top surface and the bottom surface is greater than the distance between the second top surface and the bottom surface. The beneficial effects of the present invention are mainly reflected in: the device is easy to use, the friction force between the pusher rod and the pusher frame is greatly reduced, and a large drop is formed, ensuring that the pusher rod will not fall from the pusher frame during the backward process. Slide out, so as to ensure the performance and safety of the device.

Description

Sewing and cutting machine

Technical field

The present invention relates to a kind of surgical operation sewing and cutting machine, belong to technical field of medical instruments.

Background technology

The surgery sewing and cutting machine is widely used in being used in the surgical operation wound suture, interior tissue is sewed up and cutting, typical surgery sewing and cutting machine such as U.S. Pat 5065929 announcement, have and sew up and two functions of cutting, when carrying out wound suture, excess tissue is excised.As shown in Figure 1, such sewing and cutting machine generally comprises upper andlower clamp 4,5, the closedhandle 6 that is used for closed upper and lower clamp, be oppositely arranged on thenail anvil 7 and thenail bin 8 of clamp front end up and down, be located in thenail bin 8 and the pushing slice of nail and the cutting knife 9 that can move relative to described nail bin simultaneously, and drive percussion sheet and thepush broach bar 2 that pushing slice of nail and cutting knife move, be disposed with suturing nail in the described nail bin, described pushing slice of nail is pushed suturing nail to nail anvil, and described cutting knife 9 will cut off at the tissue between nail bin and the nail anvil.

As shown in Figure 2, pushbroach bar 2 passes apush broach frame 3, and pushbroach bar 2 meeting in the process of sliding produces friction with thisslide block 1, so the doctor needs bigger driving force to order about 2 slips of push broach bar in operation.After seaming and cutting were finished, pushbroach bar 2 can drive cutting knifes 9 and slide backward, and when cutting knife 9 slides into when abutting to pushbroach frame 3, pushbroach bar 2 will stop to slide, and guarantees that pushbroach bar 2 can not skid off from the push broach frame.But owing to make and assembling, the frictional force betweenpush broach bar 2 and theslide block 1 is bigger, and makingslide block 1 drivepush broach bar 2 can skid off frompush broach frame 3, thereby influences the percussion once more of apparatus.

Summary of the invention

The objective of the invention is to solve above-mentioned technical problem, the scheme of guaranteeing that the push broach bar can not skid off in the process that retreats from the push broach frame is provided.

Purpose of the present invention is achieved through the following technical solutions:

A kind of sewing and cutting machine, comprise, following clamp, be oppositely arranged on, the nail bin of following clamp front end and nail anvil, the pushing slice of nail and the cutting knife that can move relative to described nail bin, and drive percussion sheet and the push broach bar that described pushing slice of nail and cutting knife move, be disposed with suturing nail in the described nail bin, described percussion sheet drives described pushing slice of nail and pushes suturing nail to nail anvil, described cutting knife will cut off at the tissue between nail bin and the nail anvil in the process that it moves, described push broach bar comprises a bottom surface and first end face, second end face, between described second end face and first end face difference in height is arranged, described first end face arrives the distance of bottom surface greater than described second end face to the distance of bottom surface.

Further, be provided with a recess between second end face of described push broach bar and first end face.

Further, the bottom surface of described push broach bar is provided with a underside recess.

Further, described push broach bar passes the tool slot of a push broach frame, is provided with a upper convex portion and following protuberance in the described tool slot, when described push broach frame rotates, and described upper convex portion and recess butt, described protuberance and underside recess butt down.

Further, the outside of described push broach frame is provided with a rotating shaft, and described push broach frame rotates around described rotating shaft.

Beneficial effect of the present invention is mainly reflected in: instrumentation is simple, forms big drop between push broach bar and the push broach frame, guarantees that the push broach bar can not skid off in the process that retreats, thereby guarantee the serviceability and the safety of apparatus from the push broach frame.

Description of drawings

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

Fig. 1: the front view of prior art sewing and cutting machine.

Fig. 2: the push broach bar of prior art sewing and cutting machine and the syndeton sketch map of push broach frame.

Fig. 3: the structural representation of push broach frame of the present invention.

Fig. 4: another structural representation of push broach frame of the present invention.

Fig. 5: the push broach bar of sewing and cutting machine of the present invention and the syndeton sketch map of push broach frame.

Fig. 6: the push broach bar of sewing and cutting machine of the present invention and the syndeton sketch map of push broach frame, this moment, cutting knife was drawn back.

Wherein:

1 slide block, 2 push broach bars, 21 rear ends

22 front ends, 23 first end faces, 24 second end faces

25 recesses, 26 bottom surfaces, 27 underside recess

3 push broach framves, 31 tool slots, 32 upper convex portion

Clamp on 33times protuberance 34 rotatingshafts 4

5times clamp 6 closedhandle 7 nail anvils

8 nail bins, 9 cutting knifes

The specific embodiment

The present invention has disclosed a kind of surgery sewing and cutting machine, and is consistent with prior art as shown in Figure 1, comprises that 4,5 and pivots of upper and lower clamp are arranged on down the closedhandle 6 on the clamp 5.The described front end of going upclamp 4 is provided withnail anvil 7, and the front end of followingclamp 5 is oppositely arranged nail bin 8.Described closedhandle 6 can be moved between open position and make position, and when closedhandle 6 was shown in an open position, upper andlower clamp 4,5 was in the position of opening relatively; When closedhandle 6 was in the close position, upper andlower clamp 4,5 was in sufficiently closed position, and can carry out seaming and cutting this moment.

The same with prior art, described sewing and cutting machine also comprises the pushing slice of nail and the cutting knife that can move relative to describednail bin 8, and drive percussion sheet and thepush broach bar 2 that described pushing slice of nail and cutting knife 9 move, be disposed with suturing nail in the describednail bin 8, described percussion sheet drives described pushing slice of nail and pushes suturing nail tonail anvil 7, and described cutting knife 9 will cut off at the tissue betweennail bin 8 and thenail anvil 7 in the process that it moves.

To shown in Figure 5, describedpush broach bar 2 comprises a rear end 21 and a front end 22 in conjunction with Fig. 2, fixedlys connected withslide block 1 in described its rear end 21, and describedslide block 1 drivespush broach bar 2 front and back and slides.Be fixed with cutting knife 9 on described its front end 22.

Describedpush broach bar 2 comprises a bottom surface 26 and first end face 23, second end face 24, between described second end face 24 and first end face 23 height difference H is arranged, described first end face 23 to the distance of bottom surface 26 greater than the distance of described second end face 24 to bottom surface 26.Be provided with a recess 25 between second end face 24 of describedpush broach bar 2 and first end face 23.The bottom surface 26 of describedpush broach bar 2 is provided with a underside recess 27.

When sewing and cutting machine is positioned at original state, be provided with apush broach frame 3 at front end 22 places ofpush broach bar 2, describedpush broach bar 2 passes thetool slot 31 of this push broach frame 3.During original state, first end face 23 arrives on the end face of this tool slot 31.In the sewing and cutting machine work process,push broach bar 2 is when front slide, because the height of aspect ratio first end face 23 of second end face 24 is low, thus second end face 24 can not arrive on the end face of thistool slot 31, so just reduced friction betweenpush broach bar 2 and thepush broach frame 3.

In conjunction with Fig. 5 and shown in Figure 6, be provided with a upper convex portion 32 and following protuberance 33 in thetool slot 31 of describedpush broach frame 3, the outside of describedpush broach frame 3 is provided with a rotatingshaft 34, and whenpush broach bar 2 retreated, describedpush broach frame 3 can rotate around described rotating shaft 34.When describedpush broach frame 3 rotates, recess 25 butts of described upper convex portion 32 andpush broach bar 2, underside recess 27 butts of described protuberance 33 down and pushbroach bar 2 makepush broach bar 2 can not skid off frompush broach frame 3 like this.

The present invention still has multiple concrete embodiment, and all employings are equal to replacement or equivalent transformation and all technical schemes of forming, all drop within the scope of protection of present invention.

Claims (5)

1. sewing and cutting machine, comprise, following clamp, be oppositely arranged on, the nail bin of following clamp front end and nail anvil, the pushing slice of nail and the cutting knife that can move relative to described nail bin, and drive percussion sheet and the push broach bar that described pushing slice of nail and cutting knife move, be disposed with suturing nail in the described nail bin, described percussion sheet drives described pushing slice of nail and pushes suturing nail to nail anvil, described cutting knife will cut off at the tissue between nail bin and the nail anvil in the process that it moves, it is characterized in that: described push broach bar comprises a bottom surface and first end face, second end face, between described second end face and first end face difference in height is arranged, described first end face arrives the distance of bottom surface greater than described second end face to the distance of bottom surface.

2. sewing and cutting machine according to claim 1 is characterized in that: be provided with a recess between second end face of described push broach bar and first end face.

3. sewing and cutting machine according to claim 2 is characterized in that: the bottom surface of described push broach bar is provided with a underside recess.

4. sewing and cutting machine according to claim 3, it is characterized in that: described push broach bar passes the tool slot of a push broach frame, is provided with a upper convex portion and following protuberance in the described tool slot, when described push broach frame rotates, described upper convex portion and recess butt, described protuberance and underside recess butt down.

5. sewing and cutting machine according to claim 4 is characterized in that: the outside of described push broach frame is provided with a rotating shaft, and described push broach frame rotates around described rotating shaft.

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