CN2334354Y - Miniature external fixator for hand surgery - Google Patents
Miniature external fixator for hand surgery Download PDFInfo
- Publication number
- CN2334354Y CN2334354Y CN 98200603 CN98200603U CN2334354Y CN 2334354 Y CN2334354 Y CN 2334354Y CN 98200603 CN98200603 CN 98200603 CN 98200603 U CN98200603 U CN 98200603U CN 2334354 Y CN2334354 Y CN 2334354Y
- Authority
- CN
- China
- Prior art keywords
- screw
- bulb
- nail
- external fixator
- press cover
- 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
Links
- 238000002683 hand surgery Methods 0.000 title abstract 2
- 238000001356 surgical procedure Methods 0.000 claims description 4
- 210000000988 bone and bone Anatomy 0.000 abstract description 4
- 206010017076 Fracture Diseases 0.000 description 10
- 230000001054 cortical effect Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 108010048734 sclerotin Proteins 0.000 description 2
- 208000035143 Bacterial infection Diseases 0.000 description 1
- 208000010392 Bone Fractures Diseases 0.000 description 1
- 206010019114 Hand fracture Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 206010043248 Tendon rupture Diseases 0.000 description 1
- 208000022362 bacterial infectious disease Diseases 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
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- Surgical Instruments (AREA)
Abstract
The miniature external fixator for hand surgery includes screw pressurizing sleeve and ball head, the screw pressurizing sleeve has two ends connected to the screw rod via screw thread, locking nut sleeved onto the screw rod, and bone screw with smooth part sleeved into the hole in the ball head.
Description
This utility model relates to the miniature external fixer of a kind of hands surgery, especially a kind of external fixer that is used for hand Phalangeal fracture, tendon rupture and plastic operation.
At present, generally the hand fracture fixing apparatus of Shi Yonging mainly contains the external fixer that miniature steel plate, Kirschner wire, screw and part have developed, but these device ubiquities are inserted inconvenience, destructive big, poor stability or are influenced drawback such as hand exercise, cause bone not connect sometimes, even cause bacterial infection.
The purpose of this utility model is to provide a kind of hand miniature external fixation device, and it can effectively, fast, stably be used for the hand operation, reduces the generation of complication, and is easy to implement in clinical position.
This utility model comprises screw press cover and bulb, its characteristics are: screw press cover two ends link to each other by screw thread with the bulb screw rod, locking nut is enclosed within on the bulb screw rod, the nail smooth department is inserted in the bulb hole, another locking nut is equipped with at the nail top, is used for fixing being connected between nail and the bulb.
Concrete using method of the present utility model is as follows: make the reduction of the fracture under the guiding of open reduction or closed reduction C-type arm x-ray machine, hole at the normal sclerotin of fracture site place, vertically drill through the both sides cortical bone with the drill bit that slightly is narrower than the nail threaded portion by the guide hole mould, the two hole diameters of axle are in the same plane, nail is screwed in the guide hole, after waiting to screw in the nail moderate length, ball-head cover is gone into nail, and connect two ball screws with pressure cuffs, adjust pressure cuffs, after making the fracture end pressurization stable, screw two locking nuts, prevent pressure cuffs, produce relative motion between bulb and nail.
Because this utility model increased fracture end stress, therefore, have the union of fracture of making and accelerate, advantage such as the clinical cure phase shortens, and it is fast that postoperative function recovers, and appearance is good.
Below in conjunction with drawings and Examples this utility model is described in further detail.
Fig. 1 is a structural representation of the present utility model.
As shown in Figure 1, this utility model comprises screw press cover 1 and bulb 4, wherein the two ends of screw press cover 1 are respectively positive left-hand threads, link to each other with bulb screw rod 6 threaded portions, turn bulb 4 just can make bulb screw rod 6 enter screw press cover 1, locking nut 2 is enclosed within on the bulb screw rod 6, be close to pressure cuffs 1 after the turn, prevent that 4 of pressure cuffs 1 and bulbs from relatively rotating, the smooth department of nail 5 is inserted in bulb 4 holes, locking nut 3 is equipped with at nail 5 screw top places, is used for fixing being connected between nail 5 and the bulb 4.In use, under the guiding of open reduction or closed reduction C-type arm x-ray machine, make the reduction of the fracture, hole in the normal sclerotin of fracture site place, the drill bit that slightly is narrower than nail 5 threaded portions is vertically drilled through the both sides cortical bone by the guide hole mould, the two hole diameters of axle are in the same plane, nail 5 is screwed in the guide hole, after waiting to screw in the moderate length of nail 5, bulb 4 is inserted in nail 5, and connect two bulb screw rods 6 with screw press cover 1, adjust pressure cuffs 1, make the fracture end pressurization stable after, screw two locking nuts 2 and 3, prevent pressure cuffs 1, produce relative motion between bulb 4 and the nail 5.
Because the two ends of screw press cover 1 are respectively positive left-hand threads, therefore unidirectional rotation can reach the effect that increases or reduce two bulb spacings, and bulb has been strengthened the hold of nail, can prevent the angular displacement of nail effectively; The nail stage casing increases thick part can make nail disperse with the shearing force of bulb after pressurization, prevents that nail force portion from producing distortion, causes nail distortion itself, thereby makes fracture end produce angular displacement; Because nail has thread groove, therefore insert conveniently, good stability, and be difficult for deviating from.
Claims (2)
1. miniature external fixator of hands surgery, comprise screw press cover (1) and bulb (4), it is characterized in that: screw press cover (1) two ends link to each other by screw thread with bulb screw rod (6), locking nut (2) is enclosed within on the bulb screw rod (6), nail (5) smooth department is inserted in bulb (4) hole, and another locking nut (3) is equipped with at screw (5) top.
2. the miniature external fixator of hands surgery according to claim 1 is characterized in that: the two ends of screw press cover (1) are respectively positive left-hand threads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98200603 CN2334354Y (en) | 1998-01-14 | 1998-01-14 | Miniature external fixator for hand surgery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98200603 CN2334354Y (en) | 1998-01-14 | 1998-01-14 | Miniature external fixator for hand surgery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2334354Y true CN2334354Y (en) | 1999-08-25 |
Family
ID=33958088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98200603 Expired - Fee Related CN2334354Y (en) | 1998-01-14 | 1998-01-14 | Miniature external fixator for hand surgery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2334354Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101453959B (en) * | 2006-05-26 | 2011-07-27 | 国立大学法人名古屋大学 | External fixator |
| CN107126291A (en) * | 2017-06-07 | 2017-09-05 | 上海市东方医院 | Rat-tail interverbebral disc dynamic pressurized device |
-
1998
- 1998-01-14 CN CN 98200603 patent/CN2334354Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101453959B (en) * | 2006-05-26 | 2011-07-27 | 国立大学法人名古屋大学 | External fixator |
| CN107126291A (en) * | 2017-06-07 | 2017-09-05 | 上海市东方医院 | Rat-tail interverbebral disc dynamic pressurized device |
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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 |