CN201379640Y - Novel femur composite interlocking intramedullary nail - Google Patents
Novel femur composite interlocking intramedullary nail Download PDFInfo
- Publication number
- CN201379640Y CN201379640Y CN200920096336U CN200920096336U CN201379640Y CN 201379640 Y CN201379640 Y CN 201379640Y CN 200920096336 U CN200920096336 U CN 200920096336U CN 200920096336 U CN200920096336 U CN 200920096336U CN 201379640 Y CN201379640 Y CN 201379640Y
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- femur
- nail body
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- 210000000689 upper leg Anatomy 0.000 title claims abstract description 30
- 239000002131 composite material Substances 0.000 title claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 238000002224 dissection Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 8
- 230000002411 adverse Effects 0.000 abstract description 3
- 230000003068 static effect Effects 0.000 abstract description 3
- 201000010099 disease Diseases 0.000 abstract 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 abstract 1
- 230000000399 orthopedic effect Effects 0.000 abstract 1
- 206010017076 Fracture Diseases 0.000 description 14
- 208000010392 Bone Fractures Diseases 0.000 description 12
- 210000000988 bone and bone Anatomy 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 206010020100 Hip fracture Diseases 0.000 description 2
- 210000002391 femur head Anatomy 0.000 description 2
- 206010010149 Complicated fracture Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
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Abstract
A novel femur composite interlocking intramedullary nail belongs to the field of orthopedic medical instruments. The novel femur composite interlocking intramedullary nail not only has functions of an original femur composite interlocking intramedullary nail, but also can fix complex femoral supracondylar and intercondylar fracture, further has the function of automatically converting stress of static fixation and dynamic fixation, and solves adverse side effects caused by stress shielding in later period of fracture fixation. The interlocking intramedullary nail is characterized in that two holes are disposed between a hole on the far side of a far end of a nail body and a positioning groove, central lines of the two holes mutually form an included angle of 60 degrees and respectively form an included angle of 30 degrees with the central line of the hole on the far side of the far end of the nail body, and inner screw threads are disposed inside each hole at the far end of the nail body. The interlocking intramedullary nail has the advantages of solving the side effects caused by stress shielding in the later period of fracture fixation, having convenient usage, and reducing complicating diseases of operations.
Description
Technical field
This utility model belongs to a kind of orthopaedics inner fixing device, relates in particular to a kind of novel femur composite band lock intramedullary nail.
Background technology
Present femur composite band lock intramedullary nail is that near-end and the far-end at a femoral interlocking nail has compound pinning aperture apparatus.Be provided with three holes in its near-end 80mm, three hole appearance are respectively water droplet shape, ellipse, turn one's coat and drip shape from top to bottom, the centrage in three holes be parallel to each other and respectively with intramedullary pin centrage angle at 45, make the pinning both can horizontal to the left and right having worn, also can tiltedly wear for 45 ° to upper left or lower-left, upper right or bottom right.Be provided with two horizontal holes in its far-end 80mm, the edge of distal aperture has same diameter groove apart from main nail far-end 5mm in the place ahead middle, main nail in two holes, this groove promptly is used as the locating slot of locating rod, also can lay one piece of pinning, make it have the effect of following closely on the condyle of femur, promptly " follow closely on the condyle in the marrow ".It can replace five kinds of numerous and diverse femur intramedullary nail with lock, and uses about being regardless of, and reduces cost to producing and selling, provides easy to use, reduces the complication of operation.
But, because two horizontal pitch-rows of far-end are from bigger, resected femur condyle and supracondylar fracture preferably, and, because the stress shielding function of femur intramedullary nail with lock own makes it can bring the side effect that influences union of fracture in the fracture fixation later stage.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned defective, a kind of novel femur composite band lock intramedullary nail is provided, this nail is except that the function with former femur composite band lock intramedullary nail, complicated fracture on all right resected femur condyle and the condyle, and having firm static and fix--the fixing function that changes stress automatically of dynamic property solves the adverse side effect that the stress shielding in the fracture fixation later stage brings.
This utility model is achieved through the following technical solutions: a kind of novel femur composite band lock intramedullary nail, and it comprises the shaft-like nail body of approximate human femur under loading pulp cavity dissection radian; Wherein, in the near-end 80mm of nail body, three holes are arranged, the centrage in three holes be parallel to each other and respectively with nail body centrage angle at 45, three holes are respectively water droplet shape, ellipse, turn one's coat and drip a shape from top to bottom; In the far-end 80mm of nail body, two horizontal holes are arranged; Be provided with identical with bore dia and parallel locating slot between this two hole with the hole; It is characterized in that being provided with two holes between the hole in the distally of nail body far-end and locating slot, the centrage in these two holes is in 60 ° of angles, and becomes 30 ° of angles with the centrage in the hole in the distally of nail body far-end respectively; Be equipped with female thread in each hole of nail body far-end, as shown in the figure.
The diameter in hole can be 3.0-5.5mm, and diameter can be 4.5-6.5mm at the bottom of the female thread of hole.
This utility model can use spongy bone pulling force pinning or spongy bone full thread pinning will follow closely body and femur locking in the horizontal lockhole that has female thread of far-end in use; Can be in the near-end lockhole to upper left or lower-left, upper right or bottom right 45 ° with the oblique lock of wearing of spongy bone pinning, near-end, the far-end of nail body are fixed with the two ends of femur respectively, with the fracture of treatment femur.
The beneficial effects of the utility model are:
1 because this utility model has three holes in the near-end 80mm of nail body, the centrage in three holes be parallel to each other and respectively with nail body centrage angle at 45, three holes are respectively water droplet shape, ellipse, turn one's coat and drip a shape from top to bottom; Therefore, both can make pinning horizontal to the left and right wear lock, also can be, and use about being regardless of to upper left or lower-left, upper right or 45 ° of oblique locks of wearing in bottom right.
Can treat intertrochanteric fracture in the time of in locking the neck of femur head; Horizontal wear two pinnings and when locking nail hole, can treat fracture of shaft of femur; Pinning can be treated below the femoral bone tuberosity when tiltedly being through at locking nail hole and fractures to bottom left or right 45 °; Two pinnings tiltedly are through at serious tuberosity and the bottom fracture thereof that can treat intertrochanteric fracture or complexity when locking nail hole is locked in the neck of femur head for upwards left or right 45 °.
2, owing in nail body far-end 80mm, two horizontal holes are arranged; Be provided with identical with bore dia and parallel locating slot between this two hole with the hole; It is characterized in that being provided with two holes between the hole in the distally of nail body far-end and locating slot, the centrage in these two holes is in 60 ° of angles, and becomes 30 ° of angles with the distal aperture centrage of nail body far-end respectively; Therefore, pinning laterally can be worn lock or the oblique lock of wearing, the far-end lock as the nail body is used for fixing fracture complicated on condyle of femur and the condyle.
3, owing to be equipped with female thread in each hole of nail body far-end, can use the screwed spongy bone pulling force pinning or the spongy bone full thread pinning that match to pass through, to fracture complicated on resected femur condyle and the condyle, good tension and fixation are arranged, solved the side effect that the stress shielding in fracture fixation later stage brings simultaneously, easy to use, reduce the complication of performing the operation.
Description of drawings
Fig. 1 this utility model master looks sketch map.
Fig. 2 this utility model schematic top plan view.
Fig. 3 is the A-A section enlarged diagram of Fig. 1.
Fig. 4 is the B-B section enlarged diagram of Fig. 1.
Fig. 5 is the C-C section enlarged diagram of Fig. 1.
Fig. 6 is the D-D section enlarged diagram of Fig. 1.
Wherein: 1-follows closely body, 2-near-end, 3-hole, 4-far-end, 5-locating slot, 6-female thread.
The specific embodiment
Embodiment:
As shown in the figure, a kind of novel femur composite band lock intramedullary nail comprises being similar to the shaft-like nail body 1 that the human femur under loading pulp cavity is dissected radian; Wherein, in the 80mm of near-end 2 of nail body 1, have the centrage in 3, three holes 3, three holes to be parallel to each other and respectively with nail body 1 centrage angle at 45, three holes are respectively water droplet shape, ellipse, turn one's coat and drip a shape from top to bottom; In the 80mm of the far-end 4 of following closely body 1, two horizontal holes 3 are arranged; Be provided with identical with hole 3 diameters and parallel locating slot 5 between this two hole 3 with hole 3; It is characterized in that being provided with two holes 3 between the distal aperture 3 of nail body 1 far-end 4 and locating slot 5, the centrage in these two holes 3 is in 60 ° of angles, and becomes 30 ° of angles with the centrage in the hole 3 in the distally of following closely body 1 far-end 4 respectively; Be equipped with female thread 6 in each hole 3 of nail body 1 far-end.
Novel femur composite band lock intramedullary nail is used for condyle of femur all various types of fracture to neck of femur.
When being used for the fixation of fractures of condyle of femur and condyle upper part complexity, can be in the hole 3 of nail body 1 far-end 4, with many pieces of spongy bone pinning lockings, reach desirable fixing, and making it to reach firm static and fix--the fixing effect that changes stress automatically of dynamic property solves the adverse side effect that the stress shielding in the fracture fixation later stage brings.
Claims (1)
1, a kind of novel femur composite band lock intramedullary nail, it comprises the shaft-like nail body of approximate human femur under loading pulp cavity dissection radian; Wherein, in the near-end 80mm of nail body, three holes are arranged, the centrage in three holes be parallel to each other and respectively with nail body centrage angle at 45, three holes are respectively water droplet shape, ellipse, turn one's coat and drip a shape from top to bottom; In the far-end 80mm of nail body, two horizontal holes are arranged; Be provided with identical with bore dia and parallel locating slot between this two hole with the hole; It is characterized in that: be provided with two holes between the hole in the distally of nail body far-end and locating slot, the centrage in these two holes is in 60 ° of angles, and becomes 30 ° of angles with the centrage in the hole in the distally of nail body far-end respectively; Be equipped with female thread in each hole of nail body far-end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920096336U CN201379640Y (en) | 2009-04-16 | 2009-04-16 | Novel femur composite interlocking intramedullary nail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920096336U CN201379640Y (en) | 2009-04-16 | 2009-04-16 | Novel femur composite interlocking intramedullary nail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201379640Y true CN201379640Y (en) | 2010-01-13 |
Family
ID=41523113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920096336U Expired - Lifetime CN201379640Y (en) | 2009-04-16 | 2009-04-16 | Novel femur composite interlocking intramedullary nail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201379640Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105997219A (en) * | 2016-06-30 | 2016-10-12 | 王永清 | Multidirectional locking intramedullary interlocking nail |
| CN108125712A (en) * | 2017-11-30 | 2018-06-08 | 中国人民解放军第七五医院 | A kind of novel femoral interlocking nail |
| CN108771561A (en) * | 2018-07-09 | 2018-11-09 | 常州华森医疗器械有限公司 | A kind of anti-rotation type intramedullary nail |
| CN116570359A (en) * | 2023-06-21 | 2023-08-11 | 王洁莹 | Minimally invasive and micro-stress shielding and fixing device for long tubular fractures of limbs in plastic surgery robot |
-
2009
- 2009-04-16 CN CN200920096336U patent/CN201379640Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105997219A (en) * | 2016-06-30 | 2016-10-12 | 王永清 | Multidirectional locking intramedullary interlocking nail |
| CN105997219B (en) * | 2016-06-30 | 2018-06-22 | 王永清 | Lock multidirectional intramedullary nail with lock |
| CN108125712A (en) * | 2017-11-30 | 2018-06-08 | 中国人民解放军第七五医院 | A kind of novel femoral interlocking nail |
| CN108125712B (en) * | 2017-11-30 | 2024-09-06 | 中国人民解放军第一七五医院 | Novel femoral intramedullary nail |
| CN108771561A (en) * | 2018-07-09 | 2018-11-09 | 常州华森医疗器械有限公司 | A kind of anti-rotation type intramedullary nail |
| CN116570359A (en) * | 2023-06-21 | 2023-08-11 | 王洁莹 | Minimally invasive and micro-stress shielding and fixing device for long tubular fractures of limbs in plastic surgery robot |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100113 |