CN201899533U

CN201899533U - Surgical cutting and suturing instrument

Info

Publication number: CN201899533U
Application number: CN 201020610661
Authority: CN
Inventors: 陈望东; 舒拓; 叶艳平
Original assignee: Touchstone International Medical Science Co Ltd
Current assignee: Touchstone International Medical Science Co Ltd
Priority date: 2010-11-17
Filing date: 2010-11-17
Publication date: 2011-07-20
Anticipated expiration: 2020-11-17

Abstract

The utility model discloses a surgical cutting and suturing instrument, which comprises an upper clamp and a lower clamp which can be opened or closed mutually. A slider is arranged inside a recess at the near end of the lower clamp, a nail ejection mechanism and a knife ejection mechanism are connected to the far end of the slider, and a security mechanism is arranged between the lower clamp and the slider and is a U-shaped spring plate axially fixed relative to the lower clamp, and the U-shaped spring plate includes a transverse rod and two legs connected to two sides of the transverse rod, and the two legs of the U-shaped spring plate are clamped into the slider so that the slider cannot axially move along the lower clamp when the lower clamp and the lower clamp are open. The surgical cutting and suturing instrument has the advantages of simple structure, effectiveness in operation, and fine popularization value.

Description

The surgical operation sewing and cutting machine

Technical field

This utility model relates to a kind of surgical operation sewing and cutting machine, belongs to technical field of medical instruments.

Background technology

Surgical operation is widely used in wound suture in the surgical operation, interior tissue stitching and cutting with sewing and cutting machine, typical surgical operation with sewing and cutting machine such as U.S. Pat 5129570 announcement, have and sew up and two functions of cutting, when carrying out wound suture, excess tissue is excised.Such surgical operation generally comprises upper and lower two clamps with sewing and cutting machine, and the closed handle that is used for closed upper and lower clamp, be oppositely arranged on the nail anvil and the nail bin of clamp front end up and down, be located in the nail bin and ejector pin bar, pushing slice of nail and the cutting knife that can move relative to described nail bin simultaneously, and be used to drive the push button that described 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 will cut off at the tissue between nail bin and the nail anvil.

In order to prevent to promote the maloperation that push button produces when clamp is also not closed up and down, the surgical operation of prior art all can be provided with a kind of insurance institution with sewing and cutting machine.

U.S. Pat has disclosed a kind of insurance institution No. 5129570, and a safety block that has cutting knife passage and ejector pin bar passage is set at the middle part of apparatus, and shell fragment is set below cutting knife.When apparatus was shown in an open position (being that upper and lower two clamps are not closed), shell fragment was upspring cutting knife, made cutting knife can't pass through the cutting knife passage, played safety effect; After upper and lower two clamp closures of apparatus, nail bin compressing cutting knife top makes cutting knife overcome the elastic force of shell fragment and returns to state with the cutting knife channel alignment, and insurance is at this moment removed, and apparatus can be pulled the trigger use.

U.S. Pat has disclosed another kind of insurance institution No. 7055730, and a safety block that has push broach bar passage and ejector pin bar passage is set at the middle part of apparatus, and this safety block can rotate around apparatus under the torsion spring effect.When apparatus was shown in an open position (being that upper and lower two clamps are not closed), safety block twisted, and made ejector pin bar and push broach bar all can't pass through passage, played safety effect; After upper and lower two clamp closures of apparatus, nail bin compressing safety block make it overcome the elastic force of torsion spring and recover the normal position (be ejector pin bar and push broach bar respectively with its safety block on channel alignment), make ejector pin bar and push broach bar all can pass through safety block, at this moment insurance is removed, and apparatus can be pulled the trigger use.

The utility model content

The purpose of this utility model is to propose a kind of surgical operation sewing and cutting machine with novel insurance institution.

The purpose of this utility model will be achieved by the following technical programs:

A kind of surgical operation sewing and cutting machine, comprise: can be mutually closed or open on, following clamp, the described concave inside of clamp near-end down is provided with sliding shoe, the far-end of described sliding shoe connects ejector pin mechanism and push broach mechanism, be provided with insurance institution between described clamp down and the sliding shoe, described insurance institution is with respect to the described U-shaped shell fragment of clamp axial restraint down, described U-shaped shell fragment comprises cross bar and is connected in the both feet of described cross bar both sides, last, the both feet of described U-shaped shell fragment snapped in to described sliding shoe when following clamp was not closed, were used to limit the described sliding shoe edge axial-movement of clamp down.

Further, described U-shaped shell fragment is fastened on the described near-end of clamp down.

Further, described down clamp is provided with two symmetric draw-in grooves, sliding shoe with the draw-in groove corresponding position is provided with two grooves, the both feet of described U-shaped shell fragment stride across in the groove that described draw-in groove is embedded in described sliding shoe.

Further, described draw-in groove is L shaped.

Further, the trigger mechanism of described insurance institution is last clamp near-end, and the cross bar that described upward clamp near-end is oppressed described U-shaped shell fragment makes its flexural deformation, and then the both feet of described U-shaped shell fragment are broken away from described sliding shoe groove.

The beneficial effects of the utility model are mainly reflected in: simple in structure, efficient in operation has excellent popularization and is worth.

Description of drawings

Fig. 1 is the structural representation of following clamp, and this moment, upper and lower clamp was not closed.

Fig. 2 is along the cutaway view of A-A among Fig. 1.

Fig. 3 is the structural representation of upper and lower clamp, and this moment, upper and lower clamp was closed.

Fig. 4 is along the cutaway view of B-B among Fig. 3.

Wherein:

Clamp 3 draw-in grooves on 1 time clamp 2

4 U-shaped shell fragments, 5 double-legged 6 cross bars

7 sliding shoes

The specific embodiment

Shown in Fig. 1-2, this utility model provides the insurance institution of a kind of surgical operation with sewing and cutting machine.Consistent with prior art, described surgical operation comprises cabinet with sewing and cutting machine, can be mutually the closed or upper and lower clamp opened, the far-end of last clamp 2 is provided with nail anvil (not looking out), the far-end of following clamp 1 is provided with nail bin (not looking out).Certainly, the position of clamp can exchange up and down, just this utility model is in order to express clearly so definition.The concave inside of the near-end of following clamp 1 is provided with sliding shoe 7, and described sliding shoe 7 far-ends are provided with ejector pin bar and push broach bar, is respectively applied for the percussion suturing nail and cuts and organizes.During use, tissue is placed between nail anvil and the nail bin, involutory then upper and lower clamp, closed handle makes upper and lower clamp grip tissue, promotes the percussion push button then, the stitching that can implement to organize and cutting.

An important characteristic of the present utility model is: be provided with insurance institution between described clamp 1 down and the sliding shoe 7, described insurance institution has safety position and release conditions, when described insurance institution is in safety position, described insurance institution is connected in down between clamp 1 and the sliding shoe 7 and limits the described sliding shoe 7 edges axial-movement of clamp 1 down, and promptly insurance institution is in safety position; When described insurance institution was in release conditions, described clamp 1 down broke away from sliding shoe 7, and this moment, sliding shoe can be along the axial-movement of following clamp 1.

Further, described insurance institution is with respect to the described U-shaped shell fragment 4 of clamp 1 axial restraint down, described U-shaped shell fragment 4 comprises cross bar 6 and is connected in the both feet 5 of described cross bar 6 both sides, the both feet 5 of described U-shaped shell fragment 4 snap in to described sliding shoe 7 when clamp is not closed up and down, are used to limit the described sliding shoe 7 edges axial-movement of clamp 1 down.

In this preferred embodiment, described clamp 1 down is provided with two symmetric draw-in grooves 3, and described U-shaped shell fragment 4 is set up in described clamp near-end down, can not break away from clamp down, in order to insert better and fixing U-shaped shell fragment 4, described draw-in groove 3 is arranged to L shaped, and the one end is the breach of clamp 1 down.The position that described sliding shoe 7 is corresponding with L shaped draw-in groove on the following clamp 1 also is provided with two grooves, and the both feet 5 of U-shaped shell fragment 4 are located in the described groove, then can stop sliding shoe 7 to move forward, and promptly insurance institution is in safety position.

In conjunction with Fig. 3, shown in Figure 4, the trigger mechanism of described insurance institution is the near-end of last clamp 2, after upper and lower two clamps, 1,2 closures, the cross bar 6 that the described near-end of going up clamp 2 is oppressed described U-shaped shell fragment 4 makes its flexural deformation, and then the both feet 5 that drive described U-shaped shell fragment 4 break away from the groove of described sliding shoe 7, be that the U-shaped shell fragment is removed the restriction to sliding shoe, insurance is removed, and at this moment sliding shoe 7 just can move along the axis of following clamp.

During operation, tissue is placed on the working region of clamp up and down, promptly between nail bin, nail anvil.Closed then apparatus, the near-end of clamp 2 snaps in down in clamp 1 near-end on this moment, oppress the cross bar 6 of described U-shaped shell fragment 4, make described U-shaped shell fragment 4 distortion and then its both feet 5 are thrown off in described sliding shoe 7, this moment, insurance was removed, sliding shoe 7 can move forward under the drive of percussion push button, and then promote the ejector pin bar and the push broach bar moves forward, then nail is pushed out of nail bin and hammers into tissue, cutting knife in 2 parallel sutures with tissue dissection, until the nail in the nail bin is all come out by percussion, at last sliding shoe 7 is retracted the initial position of apparatus near-end.At last, push release-push, open apparatus, operation is finished.

This utility model still has numerous embodiments, and all employing equivalents or equivalent transformation and all technical schemes of forming all drop within the protection domain of the present utility model.

Claims

1. surgical operation sewing and cutting machine, comprise: can be mutually closed or open on, following clamp, the described concave inside of clamp near-end down is provided with sliding shoe, the far-end of described sliding shoe connects ejector pin mechanism and push broach mechanism, it is characterized in that: be provided with insurance institution between described clamp down and the sliding shoe, described insurance institution is with respect to the described U-shaped shell fragment of clamp axial restraint down, described U-shaped shell fragment comprises cross bar and is connected in the both feet of described cross bar both sides, last, the both feet of described U-shaped shell fragment snapped in to described sliding shoe when following clamp was opened, and were used to limit the described sliding shoe edge axial-movement of clamp down.

2. surgical operation sewing and cutting machine according to claim 1 is characterized in that: described U-shaped shell fragment is stuck in the described near-end of clamp down.

3. surgical operation sewing and cutting machine according to claim 2, it is characterized in that: described clamp down is provided with two symmetric draw-in grooves, sliding shoe with the draw-in groove corresponding position is provided with two grooves, the both feet of described U-shaped shell fragment stride across described draw-in groove and are embedded in the groove of described sliding shoe.

4. surgical operation sewing and cutting machine according to claim 3 is characterized in that: described draw-in groove is L shaped.

5. according to described any one surgical operation sewing and cutting machine of claim 1 to 4, it is characterized in that: the trigger mechanism of described insurance institution is last clamp near-end, the described clamp near-end of going up is oppressed the cross bar of described U-shaped shell fragment and is made its flexural deformation, and then the both feet that drive described U-shaped shell fragment break away from described sliding shoe groove.