CN2177454Y - Nail remover for orthopedics - Google Patents
Nail remover for orthopedics Download PDFInfo
- Publication number
- CN2177454Y CN2177454Y CN 93234949 CN93234949U CN2177454Y CN 2177454 Y CN2177454 Y CN 2177454Y CN 93234949 CN93234949 CN 93234949 CN 93234949 U CN93234949 U CN 93234949U CN 2177454 Y CN2177454 Y CN 2177454Y
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- CN
- China
- Prior art keywords
- nail
- broken
- utility
- positioning device
- model
- 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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- Surgical Instruments (AREA)
Abstract
The utility model belongs to medical equipment used for pulling out broken nails, broken drills, and screw nails that can not be normally extracted because of embedment and corrosion in the department of orthopaedics. The utility model is composed of a positioning device and a nail extractor, wherein, an annular saw tooth cutter is arranged at the front end of the positioning device, a positioning core is arranged in the positioning device, and the positioning core is inserted in a bone hole and is used for preventing the cutter from sliding. A holding core rod with three sheets of steel tile is arranged in the nail extractor, the holding core rod is used for holding broken nails, after the broken nail position is found, the positioning device is used for aiming, and the utility model is started for taking out the broken nail. The utility model has the advantages of safety, convenient operation, short time, little bone injury and strong clinical practicability.
Description
This utility model belongs to medical apparatus and instruments.
Fracture is a kind of common damage.Whole world every year is nearly millions of because of the perform the operation case of internal fixation of fracture.Internal fixation is with after the reduction of the fracture, and the fracture after blade plate of making by means of metal material and screw will reset couples together, and behind the screw implant into body, except that the environment medium, is subjected to the effect of load-bearing, muscular strength and application of force effect, particularly alternate stress.Fatigue corrosion and stress corrosion often make screw fracture, and cause operative failure.Internal fixation must be holed on bone, screws in screw through the bone hole, and the operation of fragility carbon steel drill bit is careless slightly, drill bit can be fractureed in bone.Even fracture is healing smoothly, second operation is got the well extremely difficult taking-up of steel plate, screw, broken nail and slipped screws.Attempt is clamped brute force with the metal extending part and is revolved, often produces little effect, and damage adjacent tissue also easily, destructiveness is when difficulty is got too greatly or extremely, even abandons getting nail, allows it stay in the body throughout one's life.In the time of must getting under particular component and the situation, then around broken nail, bore a plurality of apertures, disconnected between the hole with strength of calligraphic strokes cutter, connect the bone piece and together take out broken nail.Like this, wound and operating time have been increased, because at former fracture wound again, the bone mechanical strength seriously descends, reduce skeleton load-bearing, rotation, bending, shear stress, very easily secondary is fractured, and the bone piece is damaged, increase the bone repair time, be in hospital and the corresponding increase of lying in bed, increase medical expense.
The purpose of this utility model is a kind of device for fetching nail of design, and this device is a cover apparatus, comprises 1 localizer, 1 nail extractor.
Illustration purpose and embodiment with reference to the accompanying drawings below
Fig. 1 is a localizer work sketch map;
Fig. 2 is a nail extractor work sketch map;
Fig. 3 is the nail extractor installation diagram;
Fig. 4 is the localizer installation diagram;
Localizer (1) front end has ring-type saw tooth cutting tool (13), afterbody and nail extractor or bone drill socket, localizer (1) includes location core (2), core (2) inserts when bone hole (3) prevents cutter deep (4) and skids, localizer (1) rotation is cut and is worn bone (4), and the osteocomma of cutting-out (5) is gone into localizer (1) automatically.
Nail extractor (6), include clamping plug (7), three steel watt (8) of clamping plug are from bone window (9) clamping broken nail (10), nail extractor (6) cooperates with clamping plug (7) screw thread (11), shape face (12) is entad oppressed three steel watt (8) and is clamped broken nail (10), screws out from the interior inhour of bone (4).
In like manner, nail extractor also can take out the breaking of rod and various bones garden pin in the bone window.
The utility model is easy to operate, and littler than common apparatus operation tissue damage, the time is short, and rehabilitation is fast.
Claims (1)
1, a kind of orthopaedics nail-fetching device is characterized in that:
A, localizer (1) front end have ring-type saw tooth cutting tool (13), afterbody and nail extractor or bone drill socket, and localizer (1) includes location core (2) and inserts bone hole (3) skidding when preventing that cutter from cutting tool;
B, nail extractor (6) include clamping plug (7), and three steel watt (8) of clamping plug are from bone window (9) clamping broken nail (10), and nail extractor (6) cooperates with clamping plug (7) screw thread (11), and shape face (12) is entad oppressed three steel watt (8) and clamped broken nail (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93234949 CN2177454Y (en) | 1993-10-30 | 1993-10-30 | Nail remover for orthopedics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93234949 CN2177454Y (en) | 1993-10-30 | 1993-10-30 | Nail remover for orthopedics |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2177454Y true CN2177454Y (en) | 1994-09-21 |
Family
ID=33810495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93234949 Expired - Fee Related CN2177454Y (en) | 1993-10-30 | 1993-10-30 | Nail remover for orthopedics |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2177454Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103239284A (en) * | 2013-04-16 | 2013-08-14 | 刘毅 | Bone fracture plate screw positioning device |
| CN108478274A (en) * | 2018-03-05 | 2018-09-04 | 倪菁菁 | A kind of Medical orthopedic operation steel plate broken nail processing method |
| CN109793566A (en) * | 2019-01-11 | 2019-05-24 | 温月云 | A kind of device for fetching nail of the anti-return of orthopaedics |
-
1993
- 1993-10-30 CN CN 93234949 patent/CN2177454Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103239284A (en) * | 2013-04-16 | 2013-08-14 | 刘毅 | Bone fracture plate screw positioning device |
| CN108478274A (en) * | 2018-03-05 | 2018-09-04 | 倪菁菁 | A kind of Medical orthopedic operation steel plate broken nail processing method |
| CN109793566A (en) * | 2019-01-11 | 2019-05-24 | 温月云 | A kind of device for fetching nail of the anti-return of orthopaedics |
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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 |