CN201286760Y - Broken nail remover for bone surgery - Google Patents
Broken nail remover for bone surgery Download PDFInfo
- Publication number
- CN201286760Y CN201286760Y CNU2008201730162U CN200820173016U CN201286760Y CN 201286760 Y CN201286760 Y CN 201286760Y CN U2008201730162 U CNU2008201730162 U CN U2008201730162U CN 200820173016 U CN200820173016 U CN 200820173016U CN 201286760 Y CN201286760 Y CN 201286760Y
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- CN
- China
- Prior art keywords
- sleeve
- screw
- broken nail
- broken
- handle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a broken-nail puller, in particular to the broken-nail puller used in used in bone surgery, which comprises a sleeve, a sleeve handle, a tightly butting screw and a screw hand lever, wherein, the sleeve handle is fixed at the upper end of the sleeve; the tightly butting screw is inserted in the sleeve; the screw hand lever is fixed at the upper end of the tightly butting screw; internal threads are formed on the inner wall of the sleeve; external threads are formed at the upper part of the tightly butting screw, of which the lower part is a polished rod; the internal threads on the sleeve are matched with the external threads at the upper part of the tightly butting screw; and the internal threads on the sleeve are also matched with the external threads of a broken nail. The broken-nail puller obtains the beneficial effects as follows: (1) the sleeve can be stretched into a hole formed on the physical body of a patient only when the broken nail is pulled out, so that the size of the bore formed on the physical body of the patient is reduced greatly, the trauma face bond can be reduced, and the pains of the patient can be alleviated; and (2) the time for pulling the broken nail can be shortened greatly, and the working efficiency can be increased.
Description
Technical field
This utility model relates to a kind of device for taking out broken nail, particularly a kind of bone surgery device for taking out broken nail.
Background technology
In clinical practice, the Therapeutic Method of fracture patient mainly is to adopt screw that patient's fracture site is fixed up, by the time after the fracture site healing, again screw is taken out, but, because various odjective causes, the for example comparatively violent motion of patient can cause the stressed excessive of screw position, causes the fixedly screw extraction of usefulness, after above-mentioned situation occurring, just the screw of fracture need be taken out, retighten through fracture site then, owing to there is not special-purpose device for taking out broken nail, so the taking-up of broken nail is a more insoluble problem always, the general clinically method that adopts is with the animally perforate of hole making drill at patient's fracture site, lives broken nail with the medical operation clamp then, by rotation medical operation pincers broken nail is taken out, this method not only wastes time and energy, and has increased the misery of fracture patient.
Summary of the invention
Problem to be solved in the utility model is: it is painful and shorten and get the bone surgery device for taking out broken nail of nail time to provide a kind of and reduce the patient trauma area, alleviate patient.
In order to solve the problems of the technologies described above, bone surgery device for taking out broken nail of the present utility model, comprise sleeve, be fixed on sleeve upper end sleeve handle, be inserted into fastening screw in the sleeve, be fixed on the screw handle of fastening screw upper end, described telescopic inwall is provided with female thread, the top of described fastening screw is provided with external screw thread, the bottom of fastening screw is a polished rod, described telescopic female thread matches with the external screw thread on fastening screw top, and described telescopic female thread also matches with the external screw thread of broken nail.
Bone surgery device for taking out broken nail of the present utility model, described telescopic lower end is provided with a chamfering.
Bone surgery device for taking out broken nail of the present utility model, described sleeve handle is provided with annular knurl.
Bone surgery device for taking out broken nail of the present utility model also is provided with annular knurl on the described screw handle.
The beneficial effect that this utility model is obtained is: when (1) takes out broken nail, as long as sleeve can be stretched in the sensual perforate of patient, therefore can dwindle greatly in the sensual bore size of patient, therefore can reduce wound face and connect, alleviate patient's misery; (2) can shorten the time of getting broken nail greatly, increase work efficiency.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Among the figure: 1, screw handle, 2, external screw thread, 3, sleeve handle, 4, fastening screw, 5, female thread, 6, polished rod, 7, sleeve, 8, chamfering.
The specific embodiment
As shown in Figure 1, bone surgery of the present utility model with device for taking out broken nail comprise sleeve 7, be fixed on sleeve 7 upper ends sleeve handle 3, be inserted into fastening screw 4 in the sleeve 7, be fixed on the screw handle 1 of fastening screw 4 upper ends, the inwall of described sleeve 7 is provided with female thread 5, the top of described fastening screw 4 is provided with external screw thread 2, the bottom of fastening screw 4 is a polished rod 6, the female thread 5 of described sleeve 7 matches with the external screw thread 2 on fastening screw 4 tops, and the female thread 5 of described sleeve 7 also matches with the external screw thread of broken nail; The lower end of described sleeve 7 is provided with a chamfering 8; Described sleeve handle 3 is provided with annular knurl; Also be provided with annular knurl on the described screw handle 1.
When getting broken nail, with the animally perforate of hole making drill at patient's fracture, the cross sectional dimensions that the size of perforate is slightly larger than sleeve 7 gets final product, then sleeve 7 is extend into the broken nail place, because internal thread of sleeve 5 is complementary with the external screw thread of broken nail, thus can turnbarrel handle 3, with being threaded in the sleeve 7 of broken nail, after screwing in two or three screws, the rotary screw handle 1 again, with fastening screw 4 tightly withstand broken nail, at this moment, counter-rotating sleeve handle 3 just can spin out broken nail.
Because the lower end of sleeve 7 is provided with a chamfering 8,, also can alleviate patient's misery simultaneously so sleeve 7 when stretching into the human body of fracture, inserts than being easier to.
Be equipped with annular knurl on screw handle 1 and the sleeve handle 3, can increase the frictional force of 3 of operator and screw handle 1 and sleeve handles like this, prevent to skid, thereby make the process of whole taking-up broken nail convenient and quick.
Claims (4)
1. bone surgery device for taking out broken nail, it is characterized in that: comprise sleeve (7), be fixed on the sleeve handle (3) of sleeve (7) upper end, be inserted into the fastening screw (4) in the sleeve (7), be fixed on the screw handle (1) of fastening screw (4) upper end, the inwall of described sleeve (7) is provided with female thread (5), the top of described fastening screw (4) is provided with external screw thread (2), the bottom of fastening screw (4) is polished rod (6), the female thread (5) of described sleeve (7) matches with the external screw thread (2) on fastening screw (4) top, and the female thread (5) of described sleeve (7) also matches with the external screw thread of broken nail.
2. bone surgery device for taking out broken nail according to claim 1 is characterized in that: the lower end of described sleeve (7) is provided with a chamfering (8).
3. bone surgery device for taking out broken nail according to claim 1 and 2 is characterized in that: described sleeve handle (3) is provided with annular knurl.
4. bone surgery device for taking out broken nail according to claim 1 and 2 is characterized in that: described screw handle also is provided with annular knurl on (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201730162U CN201286760Y (en) | 2008-10-13 | 2008-10-13 | Broken nail remover for bone surgery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201730162U CN201286760Y (en) | 2008-10-13 | 2008-10-13 | Broken nail remover for bone surgery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201286760Y true CN201286760Y (en) | 2009-08-12 |
Family
ID=40978429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201730162U Expired - Fee Related CN201286760Y (en) | 2008-10-13 | 2008-10-13 | Broken nail remover for bone surgery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201286760Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103750897A (en) * | 2014-01-16 | 2014-04-30 | 青岛华仁技术孵化器有限公司 | Orthopaedic broken screw removing device and using method thereof |
| CN104434295A (en) * | 2014-11-07 | 2015-03-25 | 中国人民解放军第四军医大学 | Special screw driver for taking orthopaedic internal fixed slip screw |
| CN104799935A (en) * | 2015-04-23 | 2015-07-29 | 陈晨 | Orthopedic screw taking device |
| CN106388927A (en) * | 2016-09-21 | 2017-02-15 | 河北医科大学第三医院 | A clamp device for taking out screws in bones |
| CN114376705A (en) * | 2020-10-19 | 2022-04-22 | 江苏国立医疗器械有限公司 | Intramedullary nail extractor |
-
2008
- 2008-10-13 CN CNU2008201730162U patent/CN201286760Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103750897A (en) * | 2014-01-16 | 2014-04-30 | 青岛华仁技术孵化器有限公司 | Orthopaedic broken screw removing device and using method thereof |
| CN103750897B (en) * | 2014-01-16 | 2016-09-07 | 王希强 | Orthopedic broken screw withdrawing device and using method thereof |
| CN104434295A (en) * | 2014-11-07 | 2015-03-25 | 中国人民解放军第四军医大学 | Special screw driver for taking orthopaedic internal fixed slip screw |
| CN104799935A (en) * | 2015-04-23 | 2015-07-29 | 陈晨 | Orthopedic screw taking device |
| CN106388927A (en) * | 2016-09-21 | 2017-02-15 | 河北医科大学第三医院 | A clamp device for taking out screws in bones |
| CN114376705A (en) * | 2020-10-19 | 2022-04-22 | 江苏国立医疗器械有限公司 | Intramedullary nail extractor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090812 Termination date: 20091113 |