CN201642268U - Double-screw fracture reduction fixer - Google Patents
Double-screw fracture reduction fixer Download PDFInfo
- Publication number
- CN201642268U CN201642268U CN2010201062464U CN201020106246U CN201642268U CN 201642268 U CN201642268 U CN 201642268U CN 2010201062464 U CN2010201062464 U CN 2010201062464U CN 201020106246 U CN201020106246 U CN 201020106246U CN 201642268 U CN201642268 U CN 201642268U
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- processed
- fracture
- adapter
- holder
- screw rod
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Abstract
The utility model relates to a double-screw fracture reduction fixer consisting of two fracture fixers. The utility model has the technical essence that the two fixers are respectively arranged in middle holes of two connectors, wherein a connecting ball socket joint is processed at the front end of one connector; a tightening connector nut is processed at the back end of the connection; and a structure of the other connector is just opposite to the previous connector. A screw is arranged in the tightening connector nuts of the connectors, the fixers are formed by two sliding plates which slide oppositely, bent ends of the fixers are processed at the upper ends of the sliding plates, and a screw for pushing the sliding plates to slide oppositely is arranged at the lower end of the sliding plate relative to the fixed sliding plate.
Description
Technical field
This utility model belongs to a kind of operating theater instruments, specifically a kind of reduction of the fracture apparatus.
Background technology
The fracture reduction fixator that uses is to utilize two threaded asseous pins to wear the nearly far-end of severed limb at present, one cover bracing frame is fixed in the severed limb when resetting, be installed in the positor fixed bone spicule on the bracing frame, and having a cover regulating mechanism can adjust the advance and retreat and the rotation displacement of spicule, its upper support bar can be adjusted two pin relative distances.
Outside this kind reduction fixture device deficiency:
1, the nearly far-end of fracture is worn two asseous pins earlier, wastes time and energy than not threading a needle.
2, only be used for steel plate fixedly intramedullary needle have any problem.
3, asseous pin diameter 4-5mm is a single armed load, measures through mechanics, and the too thin shearing resistance of pin is poor, can be crooked, but can not cut off.Want not bend, must reduce the distance of guide pin and fixed mount or increase the diameter of asseous pin.The conclusion of yield limit and safety coefficient: bone must not surpass 1.13cm to support bracket fastened distance, otherwise plastic deformation can take place, so amount of deflection is measured big 1cm.
4, structure is complicated and waste time and energy.
Summary of the invention
The purpose of this utility model is for overcoming above-mentioned deficiency, and utilizes principle design a kind of simple in structure, easy to operate of jack, the fracture reduction fixture device of being convenient to fracture.
This utility model is achieved in that it is to be made of two single screw rod fracture fixing apparatuss, its technical essential is: constitute two single screw rod fracture fixing apparatuss and be installed in respectively in two adapter mesopores, one of them adapter is that front end is processed with a connection ball-and-socket joint, the rear end is processed with one and tightens the adapter nut, the front end of another adapter is processed with one and tightens the adapter nut, and the rear end is processed with an adapter ball-and-socket joint.Tightening of two adapters the screw rod of being with screw handle is housed respectively in the adapter nut.Screw handle is the advance and retreat that are used for adjusting screw rod.Two holders all are to be made of two relative slide plates, and the upper end of slide plate is processed with the holder fracture end, and the holder fracture end of two slide plate upper ends is to be used for the clamping knochenbruch.The lower end of relative fixed slide plate is processed with a screwed hole, a screw rod that promotes relative sliding skateboard is installed in this screwed hole, the outer end of this screw rod is equipped with a fixed handle, regulate the advance and retreat that promote relative sliding skateboard screw rod through this fixed handle, so just constituted this twin screw fracture reduction fixator, its use principle is: two holder fracture ends of two single screw rod fracture fixing apparatuss clamp the both ends of the bone of two fractures respectively, make and be installed in two screw front ends on the adapter and withstand on respectively in the adapter ball-and-socket joint on the other side's adapter, regulate two screw rods on the adapter simultaneously, fracture site is drawn back in mutual promotion through two screw rods, carrying out shaping then resets, after shaping resets this twin screw fracture reposition instrument is taken off, just finished whole reseting procedure.
Because this utility model has adopted the principle of screw jack, fracture is drawn back resetted, pull strength is big, reliably and not peels off periosteum, and safety, convenient is mainly used in the Fracture of femur operation.
Description of drawings
Accompanying drawing 1 is the structural representation of this utility model twin screw fracture reduction fixator.
The specific embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments, but not as to qualification of the present utility model.
Provide a most preferred embodiment below:
Holder (1), (15) are installed in respectively in adapter (4), (17) mesopore (7), (20), adapter is made of symmetric two halves, adapter (4), (17) can be formed by fixedly connecting by screw (10), (19) respectively, also can be that an end is hinged, and the other end is fixing by screw (10).The front and back of adapter (4) process one respectively and connect ball-and-socket joint (5) and one and tighten adapter nut (6), tighten the screw rod (9) that an outer end band screw handle (8) is installed in the adapter nut (6).The front and back of adapter (17) are processed with one respectively and tighten attaching nut (16) and be connected ball-and-socket joint (18) with one, and the screw rod (14) of an outer end band screw handle (13) is installed in tightening attaching nut (16).The front end of screw rod (9), (14) preferably is processed into sphere, so as be connected ball-and-socket joint and contact.Holder (1), (15) all are to be made of two slide plates that can slide relatively.The upper end of holder (1) is processed with holder fracture end (3), and screwed hole of processing on its lower end relative fixed plate is installed a screw rod (2) that promotes relative sliding skateboard in this screwed hole.The upper end of holder (15) is processed with holder fracture end (11), is processed with a screwed hole on its lower end relative fixed slide plate, and a screw rod (12) that promotes relative sliding skateboard is installed in this screwed hole.The outer end of screw rod (2), (12) all is fixed with regulating handle, so that the advance and retreat of screw rod (2), (12) are regulated.And wherein said mesopore (7), (20) are shaped as circle, and the diameter of mesopore (7), (20) is in the 20mm-30mm scope, and described holder (1) and holder fracture end (3) are made by the lightweight stainless steel material.
Above-described embodiment, this utility model specific embodiment a kind of more preferably just, the common variation that those skilled in the art carries out in the technical solutions of the utility model scope and replacing all should be included in the protection domain of the present utility model.
Claims (1)
1. twin screw fracture reduction fixator, constitute by two single screw rod fracture fixing apparatuss, it is characterized in that: constitute two single screw rod fracture fixing apparatuss (1), (15) be installed in adapter (4) respectively, (17) mesopore (7), (20) in, the front and back of adapter (4) are processed with one respectively and connect ball-and-socket joint (5) and one and tighten attaching nut (6), tighten the screw rod (9) that a band screw handle (8) is installed in the attaching nut, the front and back of adapter (17) are processed with one respectively and tighten an adapter nut (16) and an adapter ball-and-socket joint (18), tighten the screw rod (14) that a band screw handle (13) is installed in the adapter nut (16), holder (1), (15) all be to constitute by two slide plates that slide relatively, the upper end of holder (1) is processed with holder fracture end (3), be processed with a screwed hole on the relatively-stationary slide plate of its lower end, a screw rod (2) that promotes relative sliding skateboard is installed in this screwed hole, the upper end of holder (15) is processed with holder fracture end (11), be processed with a screwed hole on the relatively-stationary slide plate of its lower end, a screw rod (12) that promotes relative sliding skateboard is installed in this screwed hole, and wherein said mesopore (7), (20) be shaped as circle, mesopore (7), (20) diameter is in the 20mm-30mm scope, and described holder (1) and holder fracture end (3) are made by the lightweight stainless steel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201062464U CN201642268U (en) | 2010-02-02 | 2010-02-02 | Double-screw fracture reduction fixer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201062464U CN201642268U (en) | 2010-02-02 | 2010-02-02 | Double-screw fracture reduction fixer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201642268U true CN201642268U (en) | 2010-11-24 |
Family
ID=43107453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201062464U Expired - Fee Related CN201642268U (en) | 2010-02-02 | 2010-02-02 | Double-screw fracture reduction fixer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201642268U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102228390A (en) * | 2011-06-10 | 2011-11-02 | 冉鹤 | Long bone fracture reposition instrument |
| CN110464441A (en) * | 2019-08-29 | 2019-11-19 | 深圳市儿童医院 | Femoral fracture auxiliary reset device |
-
2010
- 2010-02-02 CN CN2010201062464U patent/CN201642268U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102228390A (en) * | 2011-06-10 | 2011-11-02 | 冉鹤 | Long bone fracture reposition instrument |
| CN110464441A (en) * | 2019-08-29 | 2019-11-19 | 深圳市儿童医院 | Femoral fracture auxiliary reset device |
| CN110464441B (en) * | 2019-08-29 | 2024-03-15 | 深圳市儿童医院 | Auxiliary reduction device for femur fracture |
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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: 20101124 Termination date: 20110202 |