CN205251675U - Empty core rod and cortex of bone fixing device that interlocking intramedullary nail distal end aimed - Google Patents
Empty core rod and cortex of bone fixing device that interlocking intramedullary nail distal end aimed Download PDFInfo
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- CN205251675U CN205251675U CN201520998397.8U CN201520998397U CN205251675U CN 205251675 U CN205251675 U CN 205251675U CN 201520998397 U CN201520998397 U CN 201520998397U CN 205251675 U CN205251675 U CN 205251675U
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- cortex
- core rod
- bone
- distal end
- intramedullary nail
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Abstract
The utility model belongs to the field of medical equipment, accurate the aiming of distal end of an in particular to orthopedics interlocking intramedullary nail. To its when the intramedullary nail lockhole is bored in the operation, unfixed with the cortex of bone during empty core rod inserts the cortex of bone, the phenomenon of fine motion about the sky core rod can take place, brill intramedullary nail lockhole is the deviation occasionally. The utility model discloses the device, include that the distal end of connecting the intramedullary nail aims at locating support, hollow polished rod, empty core rod, empty core rod one end external screw thread, crooked ke shi needle, the adjusting nut component of one end, empty core rod one end have the external screw thread. Because empty core rod one end has the external screw thread, but hollow polished rod and cortex of bone can be fixed to the screw in cortex of bone, it is integrative to make empty core rod, hollow polished rod and cortex of bone combine, can not slide each other, utilizes the distal end to aim the real -time indicating device of drilling fine setting, accomplishes the accurate pinning process of distal end.
Description
Technical field
The utility model belongs to medical instruments field, and particularly the far-end of a kind of cross locking marrow nail of orthopaedics precisely aims at,The accurately raising of pinning.
Background technology
Now clinically the treatment of long bone fracture is adopted to the fixing method of cross locking marrow nail, Ke Yigu in a large numberFixed firm, early functional exercise. Because intramedullary nail distortion in various degree often can occur after inserting long bone, can there is far-endPinning difficulty situation occurs. Occur for reducing distal locking nail difficulty, generally improve pinning success rate with mechanical aiming device.But its general principle of mechanical aiming device of use is the skew that regulates sight boring by backstay now, actual clinicalThe success rate of pinning for the first time of application is not high, need to repeatedly hole and just can complete pinning process. Regulate aiming by backstayThe skew of device, it is can not adjust after a kind of fixing again, and also has skew to occur while boring after backstay regulates,Must hole time, pinning difficulty situation occurs.
Occur for reducing distal locking nail difficulty, have a kind of interlocking intramedullary nail distal end aim drill hole fine turning real-time indicating,Because pointer is not subject to the effect of power, can be movable flexibly, upper and lower drift condition while indicating accurately in real time boring, can andTime adjust correct skew. Adopt in above-mentioned structure, can realize pinning and insert accurately in the lockhole of intramedullary nail, improve pinningSuccess rate.
But the application of actual clinical is found, a kind of interlocking intramedullary nail distal end aim drill hole fine turning real-time indicating, its basePresent principles is the skew up and down that regulates sight by the nut on hollow polished rod. In the time that locking of intramedullary nail is bored in operation, due toHollow stem is to insert in cortex of bone, not and cortex of bone fix, can there is the phenomenon of the upper and lower fine motion of hollow stem, bore intramedullary nail and lock, still may there is slight deviation when in the hole.
Summary of the invention
The utility model is for existing remote end aiming device for intramedullary nail, while boring locking of intramedullary nail, still may have slight partiallyPoor, provide a kind of practicality accurate pinning device.
For reaching above-mentioned object, the utility model adopts following technical scheme:
Hollow stem and cortex of bone fixture that intramedullary interlocking nail distal end of the present utility model aims at, comprise connection intramedullary nailFar-end aim at external screw thread, one end bending of locating support, hollow polished rod, hollow stem, hollow stem one end Kirschner wire, regulate spiral shellFemale.
There is external screw thread described hollow stem one end.
Advantage of the present utility model and good effect are:
Hollow stem and cortex of bone fixture that intramedullary interlocking nail distal end of the present utility model aims at, bore locating hole in operationAfter, the Kirschner wire of one end bending may detect intramedullary nail, and after confirming that locating hole is not offset, hollow stem inserts hollow polished rod, byHave external screw thread in hollow stem one end, can screw in cortex of bone, fixation hollow polished rod and cortex of bone, make hollow stem, hollow polished rod and boneCortex integrally combines, and can not mutually slide, and utilizes distal end aim drill hole fine turning real-time indicating, completes the accurate pinning mistake of far-endJourney.
Brief description of the drawings
Fig. 1 is the structural representation that far-end of the present utility model aims at hollow stem and intramedullary nail assembling
Fig. 2 is the utility model hollow stem structural representation
Critical piece symbol description in accompanying drawing:
1: hollow polished rod 2: hollow stem
3: the Kirschner wire 4 of one end bending: adjusting nut
5: far-end aims at locating support 6: cross locking marrow nail
7: cortex of bone 8: external screw thread
Detailed description of the invention
The hollow stem a kind of intramedullary interlocking nail distal end of the present utility model being aimed at below in conjunction with the drawings and specific embodimentsBe described further with cortex of bone fixture. Following each embodiment is only for the utility model is described but not to the utility modelRestriction.
Fig. 1 is the structural representation that far-end of the present utility model aims at hollow polished rod and intramedullary nail assembling, and Fig. 2 is this practicalityNovel air core bar structural representation. As described in Fig. 1 to Fig. 2, it is hollow that a kind of intramedullary interlocking nail distal end of the present utility model aims atBar and cortex of bone fixture, comprise that the far-end that connects intramedullary nail (6) aims at locating support (5), hollow polished rod (1), hollow stem(2), the Kirschner wire (3) of hollow stem one end external screw thread (8), one end bending, adjusting nut (4) composition.
Further illustrate, in the time of operation, the first reduction of the fracture, inserts cross locking marrow nail, installs the sight of intramedullary nail (6),Far-end aims in locating support (5) and inserts hollow polished rod (1), and it is upper that hollow polished rod (1) withstands on cortex of bone (7), first uses bit drillsGood locating hole, in the through hole of hollow polished rod (1), inserts hollow stem (2), and hollow stem one end external screw thread (8) screws in cortex of bone (7)In the hole of upper brill, the about 3mm of degree of depth left and right. Hollow stem (2), hollow polished rod (1) and cortex of bone (7) are integrally combined, can not be mutualSlide, just limited the skew up and down of aiming locating support (5) when boring, the Kirschner wire (3) of one end bending inserts hollow stem (2)In, and encounter cross locking marrow nail (6), and utilize distal end aim drill hole fine turning real-time indicating, complete the accurate pinning process of far-end,Improve pinning success rate.
Claims (1)
1. intramedullary interlocking nail distal end aims at hollow stem and a cortex of bone fixture, composition comprises hollow polished rod (1), skyThe Kirschner wire (3) of core bar (2), one end bending, adjusting nut (4), far-end aim at locating support (5), it is characterized in that: hollow stem(2) there is external screw thread (8) one end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520998397.8U CN205251675U (en) | 2015-11-29 | 2015-11-29 | Empty core rod and cortex of bone fixing device that interlocking intramedullary nail distal end aimed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520998397.8U CN205251675U (en) | 2015-11-29 | 2015-11-29 | Empty core rod and cortex of bone fixing device that interlocking intramedullary nail distal end aimed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205251675U true CN205251675U (en) | 2016-05-25 |
Family
ID=55993229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520998397.8U Active CN205251675U (en) | 2015-11-29 | 2015-11-29 | Empty core rod and cortex of bone fixing device that interlocking intramedullary nail distal end aimed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205251675U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106618720A (en) * | 2017-01-11 | 2017-05-10 | 海口市人民医院 | Vertical adjustable fixed point malposition distance guide needle collimation hollow screw fixation minimally invasive device |
| CN106618719A (en) * | 2017-01-11 | 2017-05-10 | 海口市人民医院 | Hollow lag screw guide pin aiming fixator for restoration of lesser trochanter of thigh bone from rear side |
-
2015
- 2015-11-29 CN CN201520998397.8U patent/CN205251675U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106618720A (en) * | 2017-01-11 | 2017-05-10 | 海口市人民医院 | Vertical adjustable fixed point malposition distance guide needle collimation hollow screw fixation minimally invasive device |
| CN106618719A (en) * | 2017-01-11 | 2017-05-10 | 海口市人民医院 | Hollow lag screw guide pin aiming fixator for restoration of lesser trochanter of thigh bone from rear side |
| CN106618719B (en) * | 2017-01-11 | 2023-04-18 | 海口市人民医院 | Hollow lag screw guide pin aiming fixer for reduction through posterior femoral lesser tuberosity |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |