CN201958939U

CN201958939U - Linear seam cutter

Info

Publication number: CN201958939U
Application number: CN201020664466.9U
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: 2010-12-16
Filing date: 2010-12-16
Publication date: 2011-09-07
Anticipated expiration: 2020-12-16

Abstract

The utility model discloses a linear seam cutter, which comprises an upper forceps clip, a lower forceps clip and a security mechanism. The upper forceps clip and the lower forceps clip can be mutually closed or opened, the lower forceps clip is U-shaped, a nail pushing rod is slidably arranged inside the lower forceps clip, a sliding block is connected to the near end of the nail pushing rod, the security mechanism comprises a releasing part which is pivotally disposed on the lower forceps clip, and the far end of the releasing part acts on the slider so that the linear seam cutter is selectively in a security state or a security release state. The linear seam cutter has the main advantages that the linear seam cutter is simple in structure and convenient in processing, is safe and reliable and has excellent popularization value.

Description

Linear type seaming and cutting device

Technical field

This utility model relates to a kind of linear type seaming and cutting device, belongs to technical field of medical instruments.

Background technology

Linear type seaming and cutting device is widely used in being used in the surgical operation wound suture, interior tissue is sewed up and cutting, typical linear type seaming and cutting device 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 linear type seaming and cutting device generally comprises upper and lower two clamps, 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 upper and lower clamp front end, be located in the nail bin and can move ejector pin bar and cutting knife relative to described nail bin simultaneously, and be used to drive the push button that described ejector pin bar and cutting knife move.Be disposed with suturing nail in the described nail bin, described ejector pin bar promotes pushing slice of nail successively in order and pushes suturing nail to nail anvil, and described cutting knife will cut off at the tissue between nail bin and the nail anvil.

The nail bin of this apparatus be can change nonexpondable.When clinical use, often need repeatedly stitching to cut and organize, therefore when operation, need repeatedly change nail bin.Under the situation of not putting into nail bin, push button can be promoted forward arbitrarily, and then cutting knife can be pushed out, and can cause only cutting and unstitched serious consequence.Therefore, the linear type seaming and cutting device of prior art all can be provided with a kind of insurance institution.

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; When apparatus is loaded onto nail bin, and after upper and lower two clamp closures, 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; When apparatus is loaded onto nail bin, and after upper and lower two clamp closures, 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.

More than several structures all very complicated, processing assembling difficulty costs an arm and a leg.

The utility model content

The purpose of this utility model is to propose a kind of linear type seaming and cutting device with insurance institution of simple structure.

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

A kind of linear type seaming and cutting device, comprise: can be mutually the closed or upper and lower clamp opened, described clamp down is a ∪ shape, be provided with the ejector pin bar in it slidably, the near-end of described ejector pin bar is connected in a sliding shoe, and described linear type seaming and cutting device also comprises an insurance institution, described insurance institution comprises that a pivot is arranged at the release member on the described clamp down, the far-end of described release member acts on described sliding shoe, thereby makes described linear type seaming and cutting device optionally be in two states

A) safety position: described release member is connected on the described sliding shoe;

B) insurance disarm state: described release member and sliding shoe are separated.

Further, the far-end of described release member is provided with a projection, described sliding shoe is provided with a groove, the optionally clamping or separate of described projection and groove, thus make described linear suture device optionally be in described safety position or insurance disarm state.

Further, the near-end of described release member is arranged at the described near-end of clamp down by a torsion spring and a rotating shaft pivot.

Further, during the insurance disarm state, the axis of described release member is parallel with the axis of described sliding shoe.

Further, the described near-end of going up clamp can drive the near-end of described release member, makes the far-end of release member act on described sliding shoe, thereby makes described linear type seaming and cutting device optionally be in described safety position or insurance disarm state.

The beneficial effects of the utility model are mainly reflected in: simple in structure, easy to process, safe and reliable, and have excellent popularization and be worth.

Description of drawings

Fig. 1 is that this utility model linear type seaming and cutting device is in the part-structure sketch map when insuring disarm state;

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

Fig. 3 is along the cutaway view of F-F among Fig. 2;

Fig. 4 is the part-structure sketch map of this utility model linear type seaming and cutting device when being in safety position;

Fig. 5 is along the cutaway view of G-G among Fig. 4;

Fig. 6 is along the cutaway view of H-H among Fig. 5.

Wherein:

1 time clamp 2 release members 21 projection

22 rotating shafts, 23 torsion springs, 3 sliding shoes

4 grooves

The specific embodiment

Shown in Fig. 1-6, this utility model linear type seaming and cutting device, comprise: can be mutually closed or last clamp (not shown), time clamp 1 opened, following clamp 1 is a ∪ shape, be provided with ejector pin bar (not shown) in it slidably, the near-end of described ejector pin bar is fixedly connected on a sliding shoe 3, and described linear type seaming and cutting device also comprises an insurance institution, and described insurance institution comprises that one is arranged at down the release member 2 on the clamp 1 and is arranged at groove 4 on the sliding shoe 3; The near-end of release member 2 is arranged at down the near-end of clamp 1 by a torsion spring 23 and a rotating shaft 22 pivots, and its far-end is provided with a projection 21; The described near-end of going up clamp can drive the near-end of release member 2, makes the optionally clamping or separate of projection 21 and groove 4, thereby makes described linear type seaming and cutting device optionally be in two states,

A) safety position shown in Fig. 4-6: the projection 21 on the release member 2 is connected in the groove 4 on the sliding shoe 3;

B) insurance disarm state as Figure 1-3: projection 21 on the release member 2 and the groove 4 on the sliding shoe 3 are separated, and at this moment, the axis of release member 2 is parallel to the axis of sliding shoe, certainly, also can not be parallel to each other.

The operation principle of the seaming and cutting of linear type described in present embodiment device is: when described linear type seaming and cutting device was not used, it was in safety position, and the projection 21 on the release member 2 is connected in the groove 4 on the sliding shoe 3, and at this moment, sliding shoe 2 can not be moved; When described upward clamp and following clamp 1 closure, the described near-end of going up the near-end extruding release member 2 of clamp, make the far-end of release member 2 upwards rotate, thereby make the groove 4 on projection 21 and the sliding shoe 3 be separated, promptly be in the insurance disarm state, at this moment, sliding shoe 3 can be pushed forward, and apparatus can be used by percussion.

Near-end herein, far-end are to decide according to industry practice, are near-end from the nearly person of doctor when promptly performing the operation, and are far-end on the contrary.

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. linear type seaming and cutting device, comprise: can be mutually the closed or upper and lower clamp opened, described clamp down is a ∪ shape, be provided with the ejector pin bar in it slidably, the near-end of described ejector pin bar is connected in a sliding shoe, it is characterized in that: also comprise an insurance institution, described insurance institution comprises that a pivot is arranged at the release member on the described clamp down, the far-end of described release member acts on described sliding shoe, thereby makes described linear type seaming and cutting device optionally be in two states

2. linear type seaming and cutting device according to claim 1, it is characterized in that: the far-end of described release member is provided with a projection, described sliding shoe is provided with a groove, the optionally clamping or separate of described projection and groove, thus make described linear suture device optionally be in described safety position or insurance disarm state.

3. linear type seaming and cutting device according to claim 1 is characterized in that: the near-end of described release member is arranged at the described near-end of clamp down by a torsion spring and a rotating shaft pivot.

4. linear type seaming and cutting device according to claim 1 is characterized in that: during the insurance disarm state, the axis of described release member is parallel with the axis of described sliding shoe.

5. according to any described linear type seaming and cutting device among the claim 1-4, it is characterized in that: the described near-end of going up clamp can drive the near-end of described release member, make the far-end of release member act on described sliding shoe, thereby make described linear type seaming and cutting device optionally be in described safety position or insurance disarm state.