CN1399942A - decentered plug pin locked intramedullary nail with lock - Google Patents
decentered plug pin locked intramedullary nail with lock Download PDFInfo
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- CN1399942A CN1399942A CN 01124948 CN01124948A CN1399942A CN 1399942 A CN1399942 A CN 1399942A CN 01124948 CN01124948 CN 01124948 CN 01124948 A CN01124948 A CN 01124948A CN 1399942 A CN1399942 A CN 1399942A
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- plane
- fracture
- lock
- intramedullary nail
- decentered
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Abstract
The present invention relates to an eccentric plug pin locked intramedullary nail with lock for curing fracture of femoral shaft. It is characterized by that it is a hollow or solid cylindrical form made up by using medical stainless steel, one side of its far part and near part is made into plane surface respectively, and its far end is made into the form of smooth oblique plane. Sand invented intramedullary nail is simple and convenient for moutning lock nail, and its operation is simple, has no need of special equipment, also it is applicable for curing fracture of tibia and fracture of humeral shaft.
Description
Affiliated technical field: medical apparatus and instruments
Prior art: the orthopaedics therapy shaft fracture, in the distance end pulp cavity of fracture, insert the intramedullary pin that the thing compatibility in all one's life is good, have certain intensity usually, connect and fixation to reach fracture end.The early stage not fixed best indication of intramedullary nail with lock is transverse fracture or short oblique fracture or the short spiral fracture that betides the pulp cavity isthmus, in all kinds of fracture at pulp cavity broad place and the pulverizing shape fracture of pulp cavity isthmus, long oblique fracture or long spiral fracture, make intramedullary pin and fixedly be difficult to obtain certain fixing.Updating and improve along with fracture internal fixation technology, on the basis of standard intramedullary pin, intramedullary nail with lock has appearred again, be to hold diagonal or walk crosswise by its distance to penetrate screw, make it and integral body of whole long bone formation, thus the rotation and the shearing of control fracture end, the indication of intramedullary pin is expanded to the fracture at comminuted, long oblique and key two ends etc., increase the stability of fracture fixation, improved the union of fracture rate, reduced infection rate.Perform the operation in the practice, intramedullary nail with lock must increase operative incision because pinning is positioned at the two ends of long diaphysis, and pinning positioner complex operation, must use C arm Roentgen apparatus etc. in case of necessity.Although the pinning positioner is arranged, the pinning of the far-end especially pinning of distal femur is settled still difficulty, trace it to its cause, femur is vowed on the face vertical section, as seen pulp cavity is upwards slight forward protruding in front and back, femoral far section face amount vertical section pulp cavity is roomy, after so intramedullary pin enters far away section pulp cavity, intra medullary nail far-end is except that displacement forward, and might be offset to the left and right, this is that G-K nail depthkeeping slide calliper rule (depthkeeping handle) of using at present can not accurately peak at the intra medullary nail far-end depression, and causes the reason place of the pinning arrangement difficulty of far-end.
The purpose of invention: the purpose of this invention is to provide a kind of improved intramedullary nail with lock, can not only reach the fixation of the intramedullary nail with lock of present application, and can overcome the constant shortcoming of the effect of rigidly fixing that its firm static fixedly causes, the change locking nail hole is face, be the power type intramedullary nail with lock, improved the union of fracture rate, operation technique is simpler.
Technical scheme: technical scheme of the present invention, improved the scheme of the far and near end of intramedullary nail with lock locking nail hole, made the plane, be easy to insert the pin of locking by nail body section part far away, near, be not only applicable to fracture of shaft of femur, equally be applicable to tibia and humeral shaft fracture yet.
Beneficial effect: the invention discloses a kind of Decentered plug pin locked intramedullary nail with lock of orthopaedics therapy fracture of shaft of femur, be equivalent to the principle of stopping screw, the section rotation far away, near of control fracture because the suffered arm of force of pinning diminishes, has been stopped the complication of broken nail basically.Operation technique is simple, relative damage is little, do not need special installation, low cost of manufacture, and the supporting with it localizer also localizer than existing intramedullary nail with lock is simple, is suitable for wide popularization and application.
The drawing explanation: figure is the structural representation of Decentered plug pin locked intramedullary nail with lock.
Main nail body C is hollow or solid cylindrical, near-end is provided with positioning port and female thread A, is connected with injection-drawing out device with supporting localizer, on one side far away, near-end is made as plane B, D, by the section rotation far away, near of pinning (not drawing among the figure) control fracture, far-end is made as slick and sly inclined-plane E.
Using method:
The reduction of the fracture, expansion or do not expand steps such as marrow and carry out routinely.Advance nail through the tuberosity part direct motion, after intramedullary pin is crossed the fracture line certain distance, press the localizer location drilling, one piece of locking pin in distally is installed, and intramedullary pin moves on, and the downslide of can taking advantage of a situation behind the pin is run on the inclined-plane of far-end slyness, pinning is squeezed mutually with far away section plane of intramedullary pin, intramedullary pin enter the degree of depth appropriate after, press the localizer location drilling again, another piece pinning in distally and two pieces of pinnings of near-end are installed.
Claims (3)
1, a kind of Decentered plug pin locked intramedullary nail with lock of orthopaedics therapy fracture of shaft of femur, make hollow or solid cylindrical with medical stainless steel, Yi Bian far away, near section is made as the plane, far-end is made as slick and sly inclined-plane, near-end is provided with positioning port and female thread, can be connected with injection-drawing out device with supporting localizer.
2, Decentered plug pin locked intramedullary nail with lock according to claim 1, far-end are made as slick and sly inclined-plane, and the downslide of can taking advantage of a situation after pin is run on the inclined-plane makes pinning squeeze mutually with far away section plane of intramedullary pin.
3, Decentered plug pin locked intramedullary nail with lock according to claim 1 Yi Bian far away, near section is made as the plane, contacts with pinning, utilizes the principle of stopping screw, the section rotation far away, near of control fracture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01124948 CN1399942A (en) | 2001-08-06 | 2001-08-06 | decentered plug pin locked intramedullary nail with lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01124948 CN1399942A (en) | 2001-08-06 | 2001-08-06 | decentered plug pin locked intramedullary nail with lock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1399942A true CN1399942A (en) | 2003-03-05 |
Family
ID=4665816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01124948 Pending CN1399942A (en) | 2001-08-06 | 2001-08-06 | decentered plug pin locked intramedullary nail with lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1399942A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103025254A (en) * | 2010-06-18 | 2013-04-03 | 凯特林大学 | An easily implantable and stable nail-fastener for skeletal fixation and method |
-
2001
- 2001-08-06 CN CN 01124948 patent/CN1399942A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103025254A (en) * | 2010-06-18 | 2013-04-03 | 凯特林大学 | An easily implantable and stable nail-fastener for skeletal fixation and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |