CN2631435Y

CN2631435Y - Wire tie-up device for operation

Info

Publication number: CN2631435Y
Application number: CN 03246253
Authority: CN
Inventors: 马攀峰
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-07-25
Filing date: 2003-07-25
Publication date: 2004-08-11
Anticipated expiration: 2013-07-25

Abstract

The utility model belongs to the medical instrument field. The main technology is that: a handle is provided with a trigger, a rack component is driven to move when the trigger is handset, a line feeding gear ring, a line connecting gear ring, a wire winding knife component and a push rod are also driven to move, thus the knotting and snipping of the operation silk thread can be finished. The utility model is characterized in that: the structure is compact, the efficiency is high, the quality of the knitting is good.

Description

Operation silk thread wire twister

(1) technical field:

This utility model belongs to medical instruments field.

(2) background technology:

In operation process, be modal operation to vascular ligation, an operation that has need repeat up to a hundred times, even thousands of times, still by manual knotting, the degree of tightness of not only tiing a knot is difficult for grasping, and efficient is low at present, influences operating time and operation quality.

(3) summary of the invention:

The purpose of this utility model is exactly to design a kind of apparatus that can finish the knotting of operation silk thread fast, thereby shortens operating time, improves the operation quality, alleviates doctor's labor intensity.

This is suitable for novel primary structure: fix a trigger with pin and also can rotate around pin on handgrip, pin on the middle rack of tooth bar assembly cooperates with the chute of trigger, the middle rack left end is equipped with an extension spring, the extension spring other end is fixed on the handgrip, upper rack and following tooth bar are housed respectively in the side up and down of middle rack, middle rack and a gear shaft engagement, the gear shaft two ends are bearing in respectively on the upper and lower cover plate of casing, casing is fixed on the handgrip, a sheave is housed on the gear shaft, and an identical fan-shaped partial gear respectively is equipped with at the gear shaft two ends symmetrically; The following tooth bar right-hand member band tooth of tooth bar assembly, left end is not with tooth, tooth bar band toothed portion meshes with a gear wheel earlier when the tooth bar assembly moves right at present, gear wheel and a pinion, pinion again with another pinion, two pinions mesh with toothed line sending ring gear and wiring ring gear respectively again, and the axle of three gears all is bearing on the front and rear cover plate of casing; Two fan-shaped partial gears respectively with two coiling knife assemblies on the gear shaft engagement, the coiling knife assembly is separately fixed on upper cover plate and the lower cover by bearing pin, and can rotate around bearing pin; Sheave connects a connecting rod, and connecting rod connects with wire-drive rod; Upper cover plate in casing is equipped with the line wheel.Operation principle of the present utility model is such: the silk thread on the line wheel rides over earlier on the line sending ring gear, pull the plate machine, silk thread is delivered to the wiring ring gear, continue to pull the plate machine, line sending ring gear and wiring ring gear are done rightabout motion when folloing line, and silk thread is intersected, and the knife assembly that winds the line simultaneously rotates, with silk thread knotting and cut off surplus line, the effect of push rod is that toe-in is tightened up.

The utility model has the advantages that: compact conformation, can finish knotting simultaneously and cut off two actions, the efficient height, the knotting quality is good, can shorten operating time, improves the operation quality.

(4) description of drawings

Fig. 1 is the overall structure sketch map;

Fig. 2 is a tooth bar modular construction sketch map;

Fig. 3 is a coiling knife assembly structural representation;

Fig. 4 is fan-shaped partial gear structural representation.

(5) specific embodiment:

In conjunction with Fig. 1, Fig. 2, Fig. 3, this suitable novel details and working condition of Fig. 4 detail explanation; Fix a trigger 2 with pin 3 on the handgrip 1, trigger 2 can rotate around pin 3, pin 6 on the middle rack 5-1 of tooth bar assembly 5 cooperates with the chute of trigger 2, the left end of middle rack 5-1 is equipped with extension spring 4, the other end of extension spring 4 is fixed on the handgrip 1, upper side at middle rack 5-1 is equipped with upper rack 5-3, downside is equipped with down tooth bar 5-2, middle rack 5-1 and gear shaft 9 engagements, the two ends of gear shaft 9 are bearing in respectively on the upper cover plate 11 and lower cover 21 of casing, casing is fixed on the handgrip 1, and a sheave 8 is housed on the gear shaft 9, and an identical fan-shaped partial gear 10 respectively is equipped with at two ends symmetrically; The right-hand member band tooth of following tooth bar 5-2, left end is not with tooth, when tooth bar assembly 5 moved right, following tooth bar 5-2 meshed with gear wheel 19 earlier, and the band toothed portion has meshed the back and broken away from, upper rack 5-3 then meshes with gear wheel 19, gear wheel 19 is with pinion 17 engagements, and pinion 17 meshes with pinion 18 again, and pinion 18 meshes with line sending ring gear 15 again, pinion 17 meshes with wiring ring gear 16 again, and the axle of three gears 17,18,19 all is bearing on the forward and backward cover plate of casing; Two fan-shaped partial gears 10 respectively with two coiling knife assemblies 14 on the gear shaft engagement, coiling knife assembly 14 is separately fixed on upper cover plate 11 and the lower cover 21 by bearing pin 13, and can rotate around bearing pin 13; Sheave 8 connects a connecting rod 7, and connecting rod 7 connects with wire-drive rod 20 again; Line wheel 12 is housed on the upper cover plate 11 of casing; Operation principle of the present utility model is such: the silk thread of line wheel 12 rides over earlier on the line sending ring gear 15, cocking 2, under the driving of tooth bar assembly 5, line sending ring gear 15 and wiring ring gear 16 are delivered to wiring ring gear 16 simultaneously to motion together with silk thread, continue cocking, line sending ring gear 15 and wiring ring gear 16 are done rightabout motion when folloing line, and silk thread is intersected, and two coiling knife assemblies 14 rotate simultaneously, with silk thread knotting and cut off surplus line, the effect of push rod 20 is that toe-in is tightened up.

Claims

1, a kind of operation silk thread wire twister, it is characterized in that: trigger 2 is housed on handgrip 1, pin 6 on the middle rack 5-1 of tooth bar assembly 5 cooperates with chute on the trigger 2, the left end of middle rack 5-1 is strained by extension spring 4, the upper side of middle rack 5-1 is equipped with upper rack 5-3, downside is equipped with down tooth bar 5-2, middle rack 5-1 and gear shaft 9 engagements, sheave 8 is housed on the gear shaft 9, an identical fan-shaped partial gear 10 is equipped with at two ends symmetrically, following tooth bar 5-2 and upper rack 5-3 and gear wheel 19 engagements, gear wheel 19 is with pinion 17 engagements, pinion 17 meshes with pinion 18 again, and pinion 18 meshes with line sending ring gear 15 again, and pinion 17 meshes with wiring ring gear 16 again, two fan-shaped partial gears 10 respectively with two coiling knife assemblies 14 on the gear shaft engagement, sheave 8 connects a connecting rod 7, and connecting rod 7 connects with wire-drive rod 20 again, and line wheel 12 is housed on the upper cover plate 11 of casing.

2, a kind of wire twister according to claim 1 is characterized in that: the right-hand member band tooth of following tooth bar 5-2, and left end is not with tooth, when tooth bar assembly 5 moves right, following tooth bar 5-2 meshes with gear wheel 19 earlier, and the band toothed portion has meshed the back and broken away from, and upper rack 5-3 then meshes with gear wheel.

3, a kind of wire twister according to claim 1 is characterized in that: be processed with tooth on the external arc of line sending ring gear 15 and wiring ring gear 16.