CN201094663Y - Novel medical nail taking-out forceps - Google Patents
Novel medical nail taking-out forceps Download PDFInfo
- Publication number
- CN201094663Y CN201094663Y CNU2007200282588U CN200720028258U CN201094663Y CN 201094663 Y CN201094663 Y CN 201094663Y CN U2007200282588 U CNU2007200282588 U CN U2007200282588U CN 200720028258 U CN200720028258 U CN 200720028258U CN 201094663 Y CN201094663 Y CN 201094663Y
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- screw
- nail
- jaw
- clamp holder
- forceps
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Abstract
A novel medical screw forceps comprises a handle, a clamp holder, a shrapnel, a freely moveable joint, a joint shaft, a main shaft and an auxiliary shaft. The medical screw forceps is characterized in that a jaw positioned at the front end of the clamp holder is provided with a semicircle groove; the tail of the groove is provided with a screw slot like the shape of a screw cap and the jaw is shaped in circle when the jaw is closed. When the screw is extracted, the screw extractor can wrap the most area of a screw body and the nail cap in the groove and the screw slot of the jaw and wrapped part is pressed evenly to prevent the screw from sliding. In addition, the jaw is provided with antiskid tip wire that is used to reinforce an object that is difficult to be extracted or the object with shorter diameter, thereby solving the problem that a screwdriver and a common stirrup is difficult to be extracted. So the medical screw extractor is widely applicable for making the medical screw forceps with various specifications.
Description
Affiliated technical field
This utility model relates to a kind of medical device, especially a kind of new medical nail taking-out forceps.
Background technology
At present, existing medical apparatus and instruments has a variety of with equipment about pincers, cuts pincers, mosquito forceps, medical screw forceps, doublejointed nail taking-out forceps etc. fast comprising medical rongeur, automatic trachea.Then kind is seldom for medical nail taking-out forceps, and the common pincers design before continuing to use, when taking out screw, owing to manually hold nail taking-out forceps, screw and jaw interlock are not tight, easily cause jaw loosening, the phenomenon of screw stripped thread, be difficult to screw is taken out smoothly, cause operating time to prolong, screw takes out the present situation of difficulty.In view of the problem that exists in the background technology, the inventor invents a kind of new medical nail taking-out forceps finally through years of researches and practice, is used for solving the deficiency that background technology exists.
Summary of the invention
The purpose of this utility model is: the technical scheme that a kind of new medical nail taking-out forceps is provided.This utility model need solve one of its technical problem: clamp holder and the mechanical structure of holding handle and mechanical connection design thereof.This utility model need solve two of its technical problem: the clamp holder front end is got the jaw and the nail stern notch structure Design at nail place.This utility model need solve three of its technical problem: the clamp holder front end is got the anti-skid stud silk at nail place and the design of grab.
The technical solution of the utility model is achieved in that
A kind of new medical nail taking-out forceps comprises that holding handle, clamp holder, shell fragment, Movable joint, joint shaft, main shaft, countershaft constitutes, it is characterized in that: on the jaw of clamp holder assembly front end, be provided with semi-circular grooves, be provided with the nail stern notch similar at the ditch slot tail to head of a nail shape, the jaw of clamp holder front end is rounded poroid when closure, be provided with the tooth stricture of vagina in groove and the nail stern notch, and ecto-entad extends to the nail stern notch, and the shape of nail stern notch is identical with the shape of being got the head of a nail, is the scarce or semicircle platform structure of hollow hemisphere.Be provided with the tooth stricture of vagina at jaw with following closely on the stern notch, can nail body and head of a nail large tracts of land parcel and stressed even when getting nail.
Described a kind of new medical nail taking-out forceps, it is characterized in that: the front end of clamp holder is provided with grab, bail and jackscrew, and its effect is when screw will be by the jaw clamping, grab can be hung on the bail, and fastening jackscrew, prevent the slip of screw.
Described a kind of new medical nail taking-out forceps, it is characterized in that: holding handle is to be formed by two symmetrical handle combination of components of holding, wherein: hold the handle assembly and be provided with axis hole and joint axis hole, two axis holes of holding the handle assembly overlap and link into an integrated entity by fixed axis, and it is free movable around fixed axis to hold the handle assembly.
Described a kind of new medical nail taking-out forceps, it is characterized in that: clamp holder is to be formed by two symmetrical clamp holder combination of components, wherein the clamp holder assembly is provided with fixed shaft hole and joint axis hole, and axis hole overlaps and links into an integrated entity by fixed axis, and the clamp holder assembly is free movable around fixed axis.Be provided with grab on the clamp holder assembly, be provided with bail on another clamp holder, grab can hang on the bail when making its position correspondence closed.
Described a kind of new medical nail taking-out forceps is characterized in that: the jaw place at the clamp holder front end establishes jackscrew, and jackscrew is rotated with in the top wire hole of clamp holder assembly, slides if get when following closely, and jackscrew manually can be screwed, and prevents that screw from sliding.
Described a kind of new medical nail taking-out forceps is characterized in that: clamp holder and hold mutually corresponding coincidences of joint axis hole between the handle links into an integrated entity and the freedom activity by joint shaft.
Described a kind of new medical nail taking-out forceps is characterized in that: holding the shell fragment that is provided with counteracting force between the handle, shell fragment is arranged on by staple and holds on the handle, and the elastic force of shell fragment can make to be held handle and open automatically.
The operation principle of described a kind of new medical nail taking-out forceps is as follows:
Get when nail hands and grip handle, overcome the elastic force of shell fragment, make jaw closure on the clamp holder by Movable joint, will follow closely thing and place on the jaw, the top medicated cap places to be followed closely in the stern notch, and jaw is with screws clamp.
As get the nail difficulty when big, and grab can be hung on the bail, and screw jackscrew, rotate caliper and outwards be pulled and get final product.
Described a kind of new medical nail taking-out forceps is all known technology except that above-mentioned feature.
Advantage and good effect that this utility model and background technology comparison are had are: owing to be provided with circle hole shape jaw and nail stern notch in the technique scheme, when getting nail, nail body and nail tail fully can be wrapped up, when getting nail, make its large tracts of land stressed, prevent that screw from sliding.In addition, be provided with anti-skidding jackscrew on jaw, fixed by jackscrew for nail thing or the less nail thing of diameter that difficulty is big, solved the problem that can not take out with screwdriver and common tonger, this medical calm is widely used in the making of the medical nail taking-out forceps of all size.
Description of drawings
Below with embodiment and in conjunction with Figure of description progressive of the present utility model is described further:
Fig. 1. overall structure sketch map when this utility model jaw is closed.
Fig. 2. this utility model clamp holder modular construction sketch map.
Fig. 3. this utility model is held handle modular construction sketch map.
Fig. 4. profile when this utility model jaw is closed.
Fig. 5. this utility model clamp holder assembly jaw structural representation.
Among the figure: 1. hold handle, 11. hold the handle assembly, 12. main shafts, and 13. is anti-skidding protruding, 14. staples, 15. fixed shaft holes;
2. clamp holder, 21. clamp holder assemblies, 22. jaws, 221. grooves, 222. nail stern notches, 223. top wire holes, 224. jackscrews, 225. tooth stricture of vaginas, 23. countershafts, 24. axis holes, 25. grabs, 26. bails;
3. shell fragment;
4. Movable joint, 41. joint axis holes, 42. joint shafts.
The specific embodiment
A kind of new medical nail taking-out forceps comprises that holding handle 1, clamp holder 2, shell fragment 3, Movable joint 4, joint shaft 42, main shaft 12, countershaft 23 constitutes, it is characterized in that: on the jaw 22 of clamp holder assembly 21 front ends, be provided with semi-circular grooves 221, be provided with the nail stern notch 222 similar at groove 221 afterbodys to head of a nail shape, the jaw 22 of clamp holder 2 front ends is rounded poroid when closure, be provided with tooth stricture of vagina 225 in groove 221 and the nail stern notch 222, and ecto-entad extends to nail stern notch 222, the shape of nail stern notch 222 is identical with the shape of being got the head of a nail, is hollow hemisphere and lacks or semicircle platform structure.Be provided with tooth stricture of vagina 225 at jaw 22 with following closely on the stern notch 222, can nail body and head of a nail large tracts of land parcel and stressed even when getting nail.
Described a kind of new medical nail taking-out forceps, it is characterized in that: the front end of clamp holder 2 is provided with grab 25, bail 26 and jackscrew 224, and its effect is when screw will be by jaw 22 clampings, grab 25 can be hung on the bail 26, and fastening jackscrew 224, prevent the slip of screw.
Described a kind of new medical nail taking-out forceps, it is characterized in that: holding handle 1 is to be combined by two symmetrical handle assemblies 11 of holding, wherein: hold handle assembly 11 and be provided with fixed shaft hole 15 and joint axis hole 41, two fixed shaft holes of holding the handle assembly 15 overlap and link into an integrated entity by main shaft 12, and it is free movable around main shaft 12 to hold handle assembly 11.
Described a kind of new medical nail taking-out forceps, it is characterized in that: clamp holder 2 is to be combined by two symmetrical clamp holder assemblies 21, wherein clamp holder assembly 21 is provided with axis hole 24 and joint axis hole 41, axis hole 24 overlaps and links into an integrated entity by countershaft 23, and clamp holder assembly 21 is free movable around 23 of countershafts.Be provided with grab 25 on clamp holder assembly 21, be provided with bail 26 on another clamp holder 2, grab 25 can hang on the bail 26 when making its position correspondence closed.
Described a kind of new medical nail taking-out forceps is characterized in that: jaw 22 places at clamp holder 2 front ends establish jackscrew 224, and jackscrew 224 is rotated with in the top wire hole 223 of clamp holder assembly 21, and screw slides when following closely if get, and jackscrew 224 manually can be screwed, and prevent that screw from sliding.
Described a kind of new medical nail taking-out forceps is characterized in that: clamp holder 2 and the joint axis hole 41 mutual corresponding coincidences of holding between the handle 1 link into an integrated entity and free activity by joint shaft 42.
Described a kind of new medical nail taking-out forceps is characterized in that: holding the shell fragment 3 that is provided with counteracting force between the handle 1, shell fragment 3 is arranged on by staple 14 and holds on the handle 1, and the elastic force of shell fragment 3 can make to be held handle 1 and open automatically.
The operation principle of described a kind of new medical nail taking-out forceps is as follows:
Get when nail hands and grip handle 1, overcome the elastic force of shell fragment 3, make jaw 22 closures on the clamp holder 2 by Movable joint 4, will follow closely thing and place on the jaw 22, the top medicated cap places to be followed closely in the stern notch 222, and jaw 22 is with screws clamp.
As get the nail difficulty when big, and grab 25 can be hung on the bail 26, and screw jackscrew 224, rotate caliper and outwards be pulled and get final product.
Claims (2)
1, a kind of new medical nail taking-out forceps, comprise and hold handle (1), clamp holder (2), shell fragment (3), Movable joint (4), joint shaft (42), main shaft (12), countershaft (23) constitutes, it is characterized in that being provided with semi-circular grooves (221) in jaw (22) inboard of clamp holder assembly (21), afterbody at groove (221) is provided with the nail stern notch (222) that matches with head of a nail shape, and in groove (221) and nail stern notch (222), be provided with tooth stricture of vagina (225), two grooves (221) were borehole structure relatively when jaw (22) was closed, and nail stern notch (222) is hollow segment or frustum cone structure.
2, a kind of new medical nail taking-out forceps according to claim 1, it is characterized in that: the front end at clamp holder assembly (21) is respectively equipped with grab (25), bail (26), jackscrew (224), grab (25) turns and hangs on the bail (26), and top (224) is perpendicular to direction setting of groove (221).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200282588U CN201094663Y (en) | 2007-09-30 | 2007-09-30 | Novel medical nail taking-out forceps |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200282588U CN201094663Y (en) | 2007-09-30 | 2007-09-30 | Novel medical nail taking-out forceps |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201094663Y true CN201094663Y (en) | 2008-08-06 |
Family
ID=39921721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200282588U Expired - Fee Related CN201094663Y (en) | 2007-09-30 | 2007-09-30 | Novel medical nail taking-out forceps |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201094663Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104706415A (en) * | 2015-03-17 | 2015-06-17 | 苏州瑞华医院有限公司 | A pair of tongs for taking intramedullary nail |
| CN105520779A (en) * | 2014-09-28 | 2016-04-27 | 北京纳通科技集团有限公司 | Nail pulling device |
| CN106821488A (en) * | 2017-04-07 | 2017-06-13 | 中国人民解放军总医院 | A kind of screw is fixed and takes out auxiliary sleeve |
-
2007
- 2007-09-30 CN CNU2007200282588U patent/CN201094663Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105520779A (en) * | 2014-09-28 | 2016-04-27 | 北京纳通科技集团有限公司 | Nail pulling device |
| CN104706415A (en) * | 2015-03-17 | 2015-06-17 | 苏州瑞华医院有限公司 | A pair of tongs for taking intramedullary nail |
| CN106821488A (en) * | 2017-04-07 | 2017-06-13 | 中国人民解放军总医院 | A kind of screw is fixed and takes out auxiliary sleeve |
| CN106821488B (en) * | 2017-04-07 | 2023-08-11 | 中国人民解放军总医院 | Auxiliary sleeve for screw fixation and taking out |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |