CN204219020U - A kind of locating hole of interlocking intramedullary nail sight offsets correcting device again - Google Patents
A kind of locating hole of interlocking intramedullary nail sight offsets correcting device again Download PDFInfo
- Publication number
- CN204219020U CN204219020U CN201420345843.0U CN201420345843U CN204219020U CN 204219020 U CN204219020 U CN 204219020U CN 201420345843 U CN201420345843 U CN 201420345843U CN 204219020 U CN204219020 U CN 204219020U
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- China
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- hole
- polished rod
- intramedullary pin
- hollow polished
- hollow
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Abstract
This utility model belongs to medical instruments field, for the drawback often occurring during existing intra medullary nail far-end positioning hole drilling offseting, provides a kind of practical and convenient correcting device again.This utility model device, comprises the far-end connecting intramedullary pin and aims at the bending composition such as Kirschner wire, adjusting nut in locating support, hollow polished rod, hollow stem, one end.The through hole of described hollow polished rod is eccentric.When operating the first step of boring locating hole, as occurred offseting relative to the left and right of intramedullary pin, deflection of borehole goes out the chain-wales on intramedullary pin.Because the through hole in hollow polished rod is eccentric, clockwise or hollow polished rod can be rotated counterclockwise, the through hole of hollow polished rod can have the displacement of more than 3mm, just can contact with the chain-wales of intramedullary pin when holing again, recycling distal end aim drill hole fine turning real-time indicating, completes distal locking nail process.
Description
Technical field
This utility model belongs to medical instruments field, and particularly the far-end of orthopaedics interlocking intramedullary nail aims at the raising of first time boring pinning success rate.
Background technology
Clinically Interlocking intramedullary fixation method is adopted in a large number to the treatment of long bone fracture now.General use mechanical aiming device improves pinning success rate.Due to distortion to a certain degree can be there is after in intramedullary pin implantable bone, distal locking nail difficulty situation often can be there is.Occur for reducing distal locking nail difficulty, there is 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, when indicating in real time boring accurately, downward shift situation, can adjust in time and correct skew.Adopt in above-mentioned structure, pinning can be realized and implant accurately in the lockhole of intramedullary pin, improve pinning success rate.
The application of actual clinical finds, the mechanical aiming device of Clinical practice, its ultimate principle is the downward shift being regulated sight by locating rod, when operating the first step of boring locating hole, often occur the left and right shift phenomenon of locating hole relative to intramedullary pin, boring easily offsets out the chain-wales of intramedullary pin, can not contact with intramedullary pin, producing locates unsuccessfully, must bring and bore the unsuccessful of lockhole.It is not high that the skew of locating hole causes first time pinning success rate, and needing repeatedly to hole could success.
Summary of the invention
This utility model, for the drawback often occurring during existing intra medullary nail far-end positioning hole drilling offseting, provides a kind of practical and convenient correcting device again.
For reaching above-mentioned object, this utility model adopts following technical scheme:
Locating hole of the present utility model offsets correcting device again, comprises the far-end connecting intramedullary pin and aims at locating support, hollow polished rod, hollow stem, one end bending Kirschner wire, adjusting nut.
The through hole of described hollow polished rod is eccentric.
Advantage of the present utility model and good effect are:
Locating hole of the present utility model offsets correcting device again, and when operating the first step of boring locating hole, as occurred offseting relative to the left and right of intramedullary pin, deflection of borehole goes out the chain-wales of intramedullary pin, and the Kirschner wire that one end bends can find can not contact with intramedullary pin.Because the through hole in hollow polished rod is eccentric, clockwise or can be rotated counterclockwise hollow polished rod, the through hole of hollow polished rod can have the displacement of more than 3mm, more just can contact with the chain-wales of intramedullary pin when holing, utilize distal end aim drill hole fine turning real-time indicating, complete distal locking nail process.
Accompanying drawing explanation
Fig. 1 is the structural representation that far-end of the present utility model aiming hollow polished rod and intramedullary pin assemble
Fig. 2 is the plan structure schematic diagram of this utility model hollow polished rod eccentric through-hole
Critical piece symbol description in accompanying drawing:
1: hollow polished rod 2: hollow stem
3: the Kirschner wire 4 that one end is bending: adjusting nut
5: far-end aims at locating support 6: interlocking intramedullary nail
7: cortical bone 8: through hole
Detailed description of the invention
Offset correcting device again below in conjunction with the locating hole of the drawings and specific embodiments to a kind of interlocking intramedullary nail sight of the present utility model to be described further.Following each embodiment is only for illustration of this utility model but not to restriction of the present utility model.
Fig. 1 is the structural representation that far-end of the present utility model aiming hollow polished rod and intramedullary pin assemble, and Fig. 2 is the plan structure schematic diagram of this utility model hollow polished rod eccentric through-hole.As described in Fig. 1 to Fig. 2, the locating hole of a kind of interlocking intramedullary nail sight of the present utility model offsets correcting device again, comprises the far-end connecting intramedullary pin (6) and aims at the bending composition such as Kirschner wire (3), adjusting nut (4) in locating support (5), hollow polished rod (1), the through hole (8) of hollow polished rod (1), hollow stem (2), one end.
Further illustrate, when performing the operation, the first reduction of the fracture, insert interlocking intramedullary nail, install the sight of intramedullary pin (6), far-end aims in locating support (5) and inserts hollow polished rod (1), hollow polished rod (1) withstands in cortical bone (7), first use the good locating hole of bit drills, in the through hole (8) of hollow polished rod (1), insert hollow stem (2), hollow stem (2) also inserts the degree of depth in the upper hole of boring of cortical bone (7) and is about about 3MM.In the Kirschner wire (3) insertion hollow stem (2) that one end is bending, and encounter interlocking intramedullary nail (6).As occurred offseting relative to the left and right of intramedullary pin (6), deflection of borehole goes out the chain-wales of intramedullary pin, and the Kirschner wire (3) that one end bends can find can not contact with intramedullary pin (6).Because the through hole (8) in hollow polished rod (1) is eccentric, hollow polished rod (1) clockwise or can be rotated counterclockwise, the through hole (8) of hollow polished rod (1) can have the displacement of more than 3mm, just can contact with the chain-wales of intramedullary pin (6) when holing again, utilize distal end aim drill hole fine turning real-time indicating, complete distal locking nail process, improve pinning success rate.
Claims (1)
1. the locating hole of an interlocking intramedullary nail sight offsets correcting device again, composition comprises the bending Kirschner wire (3) in hollow polished rod (1), hollow stem (2), one end, far-end aims at locating support (5), it is characterized in that: the through hole (8) in hollow polished rod (1) is eccentric.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420345843.0U CN204219020U (en) | 2014-06-20 | 2014-06-20 | A kind of locating hole of interlocking intramedullary nail sight offsets correcting device again |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420345843.0U CN204219020U (en) | 2014-06-20 | 2014-06-20 | A kind of locating hole of interlocking intramedullary nail sight offsets correcting device again |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204219020U true CN204219020U (en) | 2015-03-25 |
Family
ID=52917177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420345843.0U Expired - Fee Related CN204219020U (en) | 2014-06-20 | 2014-06-20 | A kind of locating hole of interlocking intramedullary nail sight offsets correcting device again |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204219020U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107616832A (en) * | 2017-11-20 | 2018-01-23 | 陈聚伍 | Femoral interlocking nail position adjustment and method of adjustment |
| CN110393573A (en) * | 2019-08-12 | 2019-11-01 | 西北工业大学 | A kind of nail hole corrector for bone surgery |
-
2014
- 2014-06-20 CN CN201420345843.0U patent/CN204219020U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107616832A (en) * | 2017-11-20 | 2018-01-23 | 陈聚伍 | Femoral interlocking nail position adjustment and method of adjustment |
| CN107616832B (en) * | 2017-11-20 | 2023-08-04 | 陈聚伍 | Femoral intramedullary nail position adjustment system |
| CN110393573A (en) * | 2019-08-12 | 2019-11-01 | 西北工业大学 | A kind of nail hole corrector for bone surgery |
| CN110393573B (en) * | 2019-08-12 | 2022-09-27 | 西北工业大学 | Nail hole corrector for orthopedic surgery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150325 Termination date: 20200620 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |