Purse-string forceps and stitching devices thereof
Technical field
The present invention relates to technical field of medical instruments, particularly a kind of stitching devices of purse-string forceps.The invention still further relates to a kind of purse-string forceps that comprises above-mentioned stitching devices.
Background technology
In medical science applied surgical operation, since 20th century invention sixties first staple series products, Medical stapler has become the requisite a kind of medical apparatus and instruments aided in edge of a knife sewing process.Along with development and the research and development of products of medical science, more and more multi-functional staple series products is applied to clinical.The scope of application has related to the every field such as gastrointestinal surgery, Genneral Surgery, thoracic surgery, Urology Surgery, department of obstetrics and gynecology, becomes one of requisite instrument of doctor.Thereby for the patient have less hemorrhage, less operating time in art, with apparatus replace reducing due to error that craft causes by hand, avoid infection, postoperative function recovers the multiple advantage such as fast.
As shown in Figure 1, a kind of typical purse-string forceps, comprise the device body, central shaft, cam 01, suture needle, moving slider 02 and card line slide block, when work, first tissue is placed on to suture needle place, the handle of rot body, central shaft drives arm shaft and cam 01 rotates, arm shaft drives suture needle through tissue, the needle point of suture needle is by the suture needle hole, the bossing of cam 01 and moving slider 02 collision, promote moving slider 02 radially away from central shaft, thereby moving slider 02 push card line slide block 03, card line slide block 03 is moved downward, because the top in suture needle hole 05 is provided with breach, so the needle point of suture needle 04 can catch on the suture cover of suture hole 05 gap portions, rotation stops putting in place.Then counter-rotation device body handle, because the needle point of suture needle 04 has caught on the suture cover, get back to original state so suture needle 04 can drive suture through tissue, then carries out next step operation.But, due to the problem of machining accuracy, many times suture needle 04 can't accurately be inserted in suture needle hole 05, thereby can't pull out suture, cause purse-string forceps can't normally use when operation.
Therefore, how making the suture needle of purse-string forceps accurately be inserted in the suture needle hole, is the current technical issues that need to address of those skilled in the art.
Summary of the invention
The stitching devices that the purpose of this invention is to provide a kind of purse-string forceps, this stitching devices can make the suture needle of purse-string forceps accurately be inserted in the suture needle hole.Another object of the present invention is to provide a kind of purse-string forceps that comprises above-mentioned stitching devices.
To achieve these goals, the invention provides a kind of stitching devices of purse-string forceps, comprise device body and the card line slide block be slidably connected with described device body, also comprise and be fixedly mounted on described device fixture with it, be provided with connecting rod on described card line slide block, described connecting rod can, through the hole of described fixture, can arrange elastic component and regulating part on described connecting rod.
Preferably, described connecting rod is threaded rod, and described regulating part is nut.
Preferably, described connecting rod and described regulating part were tight fit.
Preferably, be provided with a plurality of spacing holes on described connecting rod, described regulating part is pin.
Preferably, described elastic component is spring.
Preferably, described elastic component is rubber blanket.
The present invention also provides a kind of purse-string forceps, comprises handle and the stitching devices be connected with described handle, and described stitching devices is the described stitching devices of above-mentioned any one.
The stitching devices of purse-string forceps provided by the invention, comprise the device body and with the card line slide block that the device body is slidably connected, also comprise and be fixedly mounted on device fixture with it, be provided with connecting rod on card line slide block, connecting rod is positioned at the hole of fixture, is provided with elastic component and regulating part on connecting rod.When the assembling purse-string forceps, can test lower stitching devices, rotate suture needle, if suture needle can't enter the suture needle hole, the regulating part that can regulate on connecting rod moves the suture needle hole, thereby suture needle accurately is inserted in the suture needle hole.
The accompanying drawing explanation
The structural representation of the stitching devices that Fig. 1 is a kind of typical purse-string forceps;
The structural representation of a kind of purse-string forceps that Fig. 2 provides for the embodiment of the present invention:
The structural representation of the stitching devices of a kind of purse-string forceps that Fig. 3 embodiment of the present invention provides:
The front view that Fig. 4 is the stitching devices shown in Fig. 3.
The specific embodiment
Core of the present invention is to provide a kind of stitching devices of purse-string forceps, and this stitching devices can make the suture needle of purse-string forceps accurately be inserted in the suture needle hole.Another core of the present invention is to provide a kind of purse-string forceps that comprises above-mentioned stitching devices.
In order to make those skilled in the art understand better technical scheme of the present invention, below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Please refer to Fig. 2-Fig. 4, in a kind of specific embodiment, the stitching devices of purse-string forceps provided by the invention, comprise device body 1 and the card line slide block 4 be slidably connected with device body 1, also comprise the fixture 8 be fixedly mounted on device body 1, be provided with connecting rod 42 on card line slide block 4, connecting rod 42 is positioned at the hole of fixture 8, is provided with elastic component 5 and regulating part 6 on connecting rod 42.When the assembling purse-string forceps, can test lower stitching devices, rotating cam 2, thereby moving slider 3 drives card line slide block 4, suture needle simultaneously 7 is rotated, if suture needle 7 can't enter suture needle hole 41, the regulating part 6 that can regulate on connecting rod 42 moves suture needle hole 41, thereby suture needle 7 accurately is inserted in suture needle hole 41.
In addition, connecting rod 42 is threaded rod, and regulating part 6 is nut, and the precision that nut is regulated is higher, can more easily to card line slide block 4, be regulated.
In addition, connecting rod 42 was tight fit with described regulating part 6, and connecting rod 42 is crossed tight fit with described regulating part 6, adjusting that can be more convenient, and described regulating part 6 can be lasso.
Further, be provided with a plurality of spacing holes on connecting rod 42, regulating part 6 is pin.The distance of regulating as required, be inserted into different spacing holes by pin, thereby regulate the position of screens slide block.
Further, elastic component 5 is spring, and spring can more easily be arranged on connecting rod 42, and the elasticity of spring is better, and elastic component 5 can be also rubber blanket.
The purse-string forceps that the embodiment of the present invention provides, the above-mentioned stitching devices that comprises handle and be connected with handle, the structure of other parts can be with reference to prior art, and this paper repeats no more.
Above purse-string forceps provided by the present invention and stitching devices thereof are described in detail.Applied specific case herein principle of the present invention and embodiment are set forth, the explanation of above embodiment, just for helping to understand method of the present invention and core concept thereof, is not limiting the scope of the present invention.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of the claims in the present invention.