CN208756134U - Has minimally invasive and support function non-expanding bone intramedullary nail for treating femoral fracture - Google Patents
Has minimally invasive and support function non-expanding bone intramedullary nail for treating femoral fracture Download PDFInfo
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- CN208756134U CN208756134U CN201721477855.9U CN201721477855U CN208756134U CN 208756134 U CN208756134 U CN 208756134U CN 201721477855 U CN201721477855 U CN 201721477855U CN 208756134 U CN208756134 U CN 208756134U
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- nail
- bone
- hole
- bone nail
- minimally invasive
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Abstract
Have minimally invasive and support function non-expanding bone intramedullary nail, including main nail, the first bone nail, the second bone nail, third bone nail and locking nail for treating femoral fracture；The proximal end of one end of main nail is set there are three nail hole, respectively the first nail hole, the second nail hole and third nail hole；First bone nail, the second bone nail and third bone nail are respectively arranged at the first nail hole, the second nail hole and third nail hole；Second bone nail and third bone nail are arranged in a crossed manner, the first bone nail, the second bone nail and third bone nail composition triangle rock-steady structure；Main nail is equipped with screw blade portion, and screw blade portion is equipped with the 4th nail hole, and locking nail is set to the 4th nail hole.The utility model is for treating fractured near end of thighbone and having minimally invasive and support function non-expanding bone intramedullary nail.
Description
Technical field
The utility model relates to orthopedic medical device field, more particularly, to treatment femoral fracture has minimally invasive and support
The non-expanding bone intramedullary nail of function.
Background technique
The incidence of Therapy of Elder Hip Fracture is high, and case fatality rate about 25% in 1 year, wherein intertrochanteric fracture incidence accounts for hip
The 50% of portion's fracture.It is intramedullary nail that it, which treats mainstream, is implanted into main nail after needing to expand marrow in operating process, and expanding marrow will increase out
Blood, wherein Hidden blood loss amount reaches 1500ml, becomes the principal element of hemodynamic instability after operation in senile patients, increases postoperative
The death rate, while a possibility that expand marrow also and can increase pulmonary embolism.As being inserted directly into after intramedullary nail opening, theoretically can effectively drop
In low art a possibility that Hidden blood loss.Meanwhile stablizing for intertrochanteric fracture fixed needs to be provided simultaneously with medial support and anti-rotation
Function, existing intramedullary nail cannot solve both of these problems simultaneously, therefore, design one kind and are provided simultaneously with anti-rotation and medial support
Intramedullary nail can effectively reduce the crash rate of fracture, improve prognosis.It solves to fix while existing intramedullary nail fails preferable
Stablize, avoid the effect of hip cripetura.
Utility model content
The purpose of this utility model is that proposing a kind of for treating fractured near end of thighbone and having minimally invasive and support function
Non-expanding bone intramedullary nail.
For this purpose, the utility model uses following technical scheme:
Has a minimally invasive and support function non-expanding bone intramedullary nail for treating femoral fracture, including main nail, the first bone nail, the
Two bone nails, third bone nail and locking nail；
The proximal end of one end of the main nail is set there are three nail hole, respectively the first nail hole, the second nail hole and third nail hole；
First bone nail, the second bone nail and third bone nail are respectively arranged at the first nail hole, the second nail hole and third nail hole；
Second bone nail and third bone nail are arranged in a crossed manner, first bone nail, the second bone nail and third bone nail composition
Triangle rock-steady structure；
The main nail is equipped with screw blade portion, and the screw blade portion is equipped with the 4th nail hole, and the locking nail is set to institute
State the 4th nail hole.
Further, the diameter of first bone nail is all larger than the diameter of second bone nail and the diameter of third bone nail.
The diameter of second bone nail and the diameter of third bone nail are equal.
Further, the diameter of first bone nail is 9mm, and the diameter of second bone nail and the diameter of third bone nail are
5.5mm。
Further, the length of the main nail is 210mm.
Further, the length of the main nail is 170mm.
Further, first bone nail, the second bone nail, third bone nail and locking nail are screw.
Further, the screw blade portion rotates 105 ° from its proximal end to its distal end.
The utility model proposes a kind of for treating fractured near end of thighbone and having minimally invasive and support function according to above content
The non-expanding bone intramedullary nail of energy.
In use, since the main nail is equipped with screw blade portion, in insertion without expanding marrow, it is only necessary to open proximal end
Mouth, which can be hammered directly, to be rotatably inserted into, and is avoided and is expanded the secondary bleeding of marrow bring, safer.
The screw blade portion enters pulp cavity in a rotative pattern, can contribute to avoid injury caused by marrow is expanded
Sclerotin is compressed, the main nail of intramedullary nail can more firmly be fixed by facilitating osteoporosis patients.
First bone nail, the second bone nail, third bone nail and locking nail are screw, if stable fracture, described first
Bone nail is axially implanted into along neck of femur, can play pulling force effect to fracture end；
If unstable type fracture, may be selected second bone nail and third bone nail intersecting implanted unit bone middle and lower part,
Can provide supporting role, can either anti-retaining nail, and anti-rotation can be played the role of, first bone nail, the second bone nail and third
Bone nail forms triangle rock-steady structure, can be avoided hip cripetura, femoral head has best supporting role.The locking nail can be locked
The fixed main nail, avoids it from rotating, more stable safety when making its use.
Detailed description of the invention
Fig. 1 is schematic diagram when the one of embodiment of the utility model uses；
Fig. 2 is the structural schematic diagram of the one of embodiment of the utility model.
Wherein: main nail 1, screw blade portion 11, the first bone nail 21, the second bone nail 22, third bone nail 23, locking nail 3, first
Nail hole 11, the second nail hole 12, third nail hole 13, the 4th nail hole 14.
Specific embodiment
Further illustrate the technical solution of the utility model below with reference to the accompanying drawings and specific embodiments.
As depicted in figs. 1 and 2, have minimally invasive and support function non-expanding bone intramedullary nail for treating femoral fracture, including
Main nail the 1, first bone nail 21, the second bone nail 22, third bone nail 23 and locking nail 3；
The proximal end of one end of the main nail 1 is set there are three nail hole, and respectively the first nail hole 11, the second nail hole 12 and third are followed closely
Hole 13；
First bone nail 21, the second bone nail 22 and third bone nail 23 are respectively arranged at the first nail hole 11, the second nail hole 12
With third nail hole 13；
Second bone nail 22 and third bone nail 23 are arranged in a crossed manner, first bone nail 21, the second bone nail 22 and third
Bone nail 23 forms triangle rock-steady structure；
The main nail 1 is equipped with screw blade portion 11, and the screw blade portion 11 is equipped with the 4th nail hole 14, the locking nail 3
It is set to the 4th nail hole 14.
In use, since the main nail 1 is equipped with screw blade portion 11, in insertion without expanding marrow, it is only necessary to proximal end into
Row opening, which can be hammered directly, to be rotatably inserted into, and is avoided and is expanded the secondary bleeding of marrow bring, safer.
The screw blade portion 11 enters pulp cavity in a rotative pattern, can help to avoid injury caused by marrow is expanded
In compressing sclerotin, the main nail of intramedullary nail can more firmly be fixed by facilitating osteoporosis patients.
First bone nail 21, the second bone nail 22, third bone nail 23 and locking nail 3 are screw, if stable fracture, institute
It states the first bone nail 21 and is axially implanted into along neck of femur, pulling force effect can be played to fracture end；
If unstable type fracture may be selected under intersecting second bone nail 22 and third bone nail 23 in implanted unit bone
Portion, it is possible to provide supporting role, can either anti-retaining nail, and anti-rotation can be played the role of, first bone nail 21, the second bone nail 22
Triangle rock-steady structure is formed with third bone nail 23, can be avoided hip cripetura, femoral head has best supporting role.The locking
Nail 3 can lock the main nail 1, it is avoided to rotate, more stable safety when making its use.
Further, the diameter of first bone nail 21 be all larger than second bone nail 22 diameter and third bone nail 23 it is straight
Diameter.
First bone nail 21 plays pulling force effect to fracture end, and the diameter and third bone nail 23 of second bone nail 22 provide
Auxiliary support effect, so the diameter of first bone nail 21 is all larger than the diameter and third bone nail 23 of second bone nail 22
Diameter.
Further, the diameter of second bone nail 22 and the diameter of third bone nail 23 are equal.
So that second bone nail 22 and third bone nail 23 Auxiliary support effect is equal, effect is more preferable.
Further, the diameter of first bone nail 21 is 9mm, the diameter of second bone nail 22 and third bone nail 23 it is straight
Diameter is 5.5mm.
Such size setting, first bone nail 21 play optimal pulling force effect, second bone nail to fracture end
22 and third bone nail 23 can play the role of optimal Auxiliary support.
Further, the length of the main nail 1 is 210mm.
Most of fractured near end of thighbone demand can be met.
Further, the length of the main nail 1 is 170mm.
It is designed mainly for old short and small women, avoids 1 distal end of the main nail from forming stress with femoral shaft inner cortex and concentrate.
Further, first bone nail 21, the second bone nail 22, third bone nail 23 and locking nail 3 are screw.
Further, the screw blade portion 11 rotates 105 ° from its proximal end to its distal end.
From be inserted into hammering reach demand position to intramedullary nail when, theoretically designed according to organization of human body, without adjustment before
Inclination angle can be implanted directly into head nail.
Technical principle of the utility model has been described above with reference to specific embodiments.These descriptions are intended merely to explain this reality
With novel principle, and it cannot be construed to the limitation to scope of protection of the utility model in any way.Based on the explanation herein,
Those skilled in the art, which does not need to pay for creative labor, can associate with other specific implementation modes of this utility model,
These modes are fallen within the protection scope of the utility model.
Claims (8)
1. having minimally invasive and support function non-expanding bone intramedullary nail for treating femoral fracture, it is characterised in that: including main nail, the
One bone nail, the second bone nail, third bone nail and locking nail；
The proximal end of one end of the main nail is set there are three nail hole, respectively the first nail hole, the second nail hole and third nail hole；
First bone nail, the second bone nail and third bone nail are respectively arranged at the first nail hole, the second nail hole and third nail hole；
Second bone nail and third bone nail are arranged in a crossed manner, first bone nail, the second bone nail and third bone nail composition triangle
Shape rock-steady structure；
The main nail is equipped with screw blade portion, and the screw blade portion is equipped with the 4th nail hole, and the locking nail is set to described the
Four nail hole.
2. according to claim 1 have minimally invasive and support function non-expanding bone intramedullary nail for treating femoral fracture,
Be characterized in that: the diameter of first bone nail is all larger than the diameter of second bone nail and the diameter of third bone nail.
3. according to claim 1 have minimally invasive and support function non-expanding bone intramedullary nail for treating femoral fracture,
Be characterized in that: the diameter of second bone nail and the diameter of third bone nail are equal.
4. according to claim 1 have minimally invasive and support function non-expanding bone intramedullary nail for treating femoral fracture,
Be characterized in that: the diameter of first bone nail is 9mm, and the diameter of second bone nail and the diameter of third bone nail are 5.5mm.
5. according to claim 1 have minimally invasive and support function non-expanding bone intramedullary nail for treating femoral fracture,
Be characterized in that: the length of the main nail is 210mm.
6. according to claim 1 have minimally invasive and support function non-expanding bone intramedullary nail for treating femoral fracture,
Be characterized in that: the length of the main nail is 170mm.
7. according to claim 1 have minimally invasive and support function non-expanding bone intramedullary nail for treating femoral fracture,
Be characterized in that: first bone nail, the second bone nail, third bone nail and locking nail are screw.
8. according to claim 1 have minimally invasive and support function non-expanding bone intramedullary nail for treating femoral fracture,
Be characterized in that: the screw blade portion rotates 105 ° from its proximal end to its distal end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721477855.9U CN208756134U (en) | 2017-11-08 | 2017-11-08 | Has minimally invasive and support function non-expanding bone intramedullary nail for treating femoral fracture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721477855.9U CN208756134U (en) | 2017-11-08 | 2017-11-08 | Has minimally invasive and support function non-expanding bone intramedullary nail for treating femoral fracture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208756134U true CN208756134U (en) | 2019-04-19 |
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ID=66124453
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721477855.9U Expired - Fee Related CN208756134U (en) | 2017-11-08 | 2017-11-08 | Has minimally invasive and support function non-expanding bone intramedullary nail for treating femoral fracture |
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| CN (1) | CN208756134U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107669327A (en) * | 2017-11-08 | 2018-02-09 | 南方医科大学南方医院 | Possesses minimally invasive and support function non-expanding bone intramedullary nail for treating femoral fracture |
-
2017
- 2017-11-08 CN CN201721477855.9U patent/CN208756134U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107669327A (en) * | 2017-11-08 | 2018-02-09 | 南方医科大学南方医院 | Possesses minimally invasive and support function non-expanding bone intramedullary nail for treating femoral fracture |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190419 Termination date: 20201108 |