CN204147123U - Acetabular bone alignment device - Google Patents
Acetabular bone alignment device Download PDFInfo
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- CN204147123U CN204147123U CN201420574252.0U CN201420574252U CN204147123U CN 204147123 U CN204147123 U CN 204147123U CN 201420574252 U CN201420574252 U CN 201420574252U CN 204147123 U CN204147123 U CN 204147123U
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- contact pin
- iliac spine
- acetabular bone
- floats
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Abstract
This utility model relates to a kind of acetabular bone alignment device, comprise the reference plane of acetabular bone physiology, anterior superior iliac spine floats contact pin, anterior inferior iliac spine floats contact pin, sciatic nerve incisura contact pin, anterior superior iliac spine floats contact pin, anterior inferior iliac spine floats contact pin, sciatic nerve incisura contact pin is positioned at acetabular bone physiology reference plane homonymy, anterior superior iliac spine floats contact pin, the anterior inferior iliac spine contact pin that floats is connected with the reference plane of acetabular bone physiology is vertical, anterior superior iliac spine floats contact pin, the float length of contact pin of anterior inferior iliac spine is identical, sciatic nerve incisura contact pin is longer, sciatic nerve incisura contact pin is fixedly connected with the reference plane of acetabular bone physiology by universal joint.This utility model acetabular bone alignment device solves the line connector used at present and uses overall trunk as benchmark, low precision, the factors such as receptor site affect large problem, and hip prosthesis is installed and utilized this utility model, and mobility and the stability of hip prosthesis improve greatly.
Description
Technical field
This utility model relates to a kind of medical apparatus and instruments, particularly relates to a kind of acetabular bone alignment device.
Background technology
Hip replacement surgery need determine acetabular bone physiological angle, installs mortar cup so that correct.The quality that acetabular bone physiological angle is determined will directly have influence on mobility and the stability of postoperative hip prosthesis.The factors such as the acetabular bone of current use uses overall trunk as benchmark to the line phase, its low precision, receptor site impact is large.
Utility model content
The technical problems to be solved in the utility model is: in order to solve the problem, and this utility model provides a kind of acetabular bone alignment device to solve the problems referred to above.
This utility model solves the technical scheme that its technical problem adopts: a kind of acetabular bone alignment device, comprise the reference plane of acetabular bone physiology, anterior superior iliac spine floats contact pin, anterior inferior iliac spine floats contact pin, sciatic nerve incisura contact pin, described anterior superior iliac spine floats contact pin, anterior inferior iliac spine floats contact pin, sciatic nerve incisura contact pin is positioned at acetabular bone physiology reference plane homonymy, described anterior superior iliac spine floats contact pin, the anterior inferior iliac spine contact pin that floats is connected with the reference plane of acetabular bone physiology is vertical, described anterior superior iliac spine floats contact pin, the float length of contact pin of anterior inferior iliac spine is identical, the comparatively described anterior superior iliac spine of described sciatic nerve incisura contact pin floats contact pin, anterior inferior iliac spine floats the long 70mm-80mm of contact pin, described sciatic nerve incisura contact pin is fixedly connected with the reference plane of acetabular bone physiology by universal joint.
Float contact pin, anterior inferior iliac spine of described anterior superior iliac spine floats the spacing scalable of contact pin.Individual different, the position of anterior superior iliac spine and anterior inferior iliac spine is also incomplete same, and the scalable of distance can meet different changes.
Float contact pin, anterior inferior iliac spine of the comparatively described anterior superior iliac spine of described sciatic nerve incisura contact pin floats the long 75mm of contact pin.75mm is the most close to physiological angle for the display of bone data.
Utilize acetabular bone alignment device to carry out the method for acetabular bone to line, step is as follows,
A. first sciatic nerve incisura contact pin one end away from the reference plane of acetabular bone physiology is contacted with sciatic nerve incisura, and sciatic nerve is made sure to keep in mind contact pin and is outwards kept flat vertical with trunk sagittal plane and keep motionless,
B. float one end away from the reference plane of acetabular bone physiology of contact pin of contact pin, anterior inferior iliac spine of secondly being floated by anterior superior iliac spine contacts with anterior inferior iliac spine with anterior superior iliac spine respectively,
C. described sciatic nerve incisura contact pin, anterior superior iliac spine floated contact pin and anterior inferior iliac spine floats three pin mutual relation lockings of contact pin,
D. the trend of acetabular bone physiology reference plane is finally determined.
A defining method for acetabular bone datum level, step is as follows,
First the position of anterior superior iliac spine and anterior inferior iliac spine is determined,
Next determines that extends a bone labelling, extends bone and is labeled as sciatic nerve incisura and translation 70mm to 80mm laterally, and vertical with trunk sagittal plane;
Finally determine acetabular bone datum level with anterior superior iliac spine, anterior inferior iliac spine, extension bone labelling 3.
Described extension bone is labeled as sciatic nerve incisura and translation 75mm laterally.
The beneficial effects of the utility model are, this utility model acetabular bone alignment device reappears acetabular bone physiological angle, extend bone labelling and determine its datum level, can determine the implant angle of acetabular cup prosthesis easily to line by two bone labellings and one,
Solving the line connector used at present uses overall trunk as benchmark, low precision, and the factors such as receptor site affect large problem, and hip prosthesis is installed and utilized this utility model, and mobility and the stability of hip prosthesis improve greatly.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, this utility model is further illustrated.
Fig. 1 is the structural representation of the optimum embodiment of this utility model acetabular bone alignment device.
In figure 1, anterior superior iliac spine floats contact pin, and 2, anterior inferior iliac spine floats contact pin, 3, the reference plane of acetabular bone physiology, 4, sciatic nerve incisura contact pin.
Detailed description of the invention
By reference to the accompanying drawings this utility model is described in further detail now.These accompanying drawings are the schematic diagram of simplification, only basic structure of the present utility model are described in a schematic way, and therefore it only shows the formation relevant with this utility model.
As shown in Figure 1, this utility model acetabular bone alignment device, comprise acetabular bone physiology reference plane 3, anterior superior iliac spine floats contact pin 1, anterior inferior iliac spine floats contact pin 2, sciatic nerve incisura contact pin 4, anterior superior iliac spine floats contact pin 1, anterior inferior iliac spine floats contact pin 2, sciatic nerve incisura contact pin 4 is positioned at acetabular bone physiology reference plane 3 homonymy, anterior superior iliac spine floats contact pin 1, the anterior inferior iliac spine contact pin 2 that floats is connected with acetabular bone physiology reference plane 3 is vertical, anterior superior iliac spine floats contact pin 1, the float length of contact pin 2 of anterior inferior iliac spine is identical, sciatic nerve incisura contact pin 4 comparatively anterior superior iliac spine floats contact pin 1, anterior inferior iliac spine floats the long 75mm of contact pin 2, sciatic nerve incisura contact pin 4 is fixedly connected with acetabular bone physiology reference plane 3 by universal joint, anterior superior iliac spine floats contact pin 1, anterior inferior iliac spine floats the spacing scalable of contact pin 2.
Utilize acetabular bone alignment device to carry out the method for acetabular bone to line, step is as follows,
A. first sciatic nerve incisura contact pin 4 one end away from acetabular bone physiology reference plane 3 is contacted with sciatic nerve incisura, and sciatic nerve is made sure to keep in mind contact pin 4 and is outwards kept flat vertical with trunk sagittal plane and keep motionless,
B. float one end away from acetabular bone physiology reference plane 3 of contact pin 2 of contact pin 1, anterior inferior iliac spine of secondly being floated by anterior superior iliac spine contacts with anterior inferior iliac spine with anterior superior iliac spine respectively,
C. described sciatic nerve incisura contact pin 4, anterior superior iliac spine floated contact pin 1 and anterior inferior iliac spine floats three pin mutual relation lockings of contact pin 2,
D. the trend of acetabular bone physiology reference plane 3 is finally determined.
A defining method for acetabular bone datum level, step is as follows,
First the position of anterior superior iliac spine and anterior inferior iliac spine is determined,
Next determines that extends a bone labelling, extends bone and is labeled as sciatic nerve incisura and translation 70mm to 80mm laterally, and vertical with trunk sagittal plane;
Finally determine acetabular bone datum level with anterior superior iliac spine, anterior inferior iliac spine, extension bone labelling 3,
Described extension bone is labeled as sciatic nerve incisura and translation 75mm laterally.
By anterior superior iliac spine and anterior inferior iliac spine, the datum level of acetabular bone alignment device adds that the extension of 70 to 80mm outside a pelvis sciatic nerve incisura is put at three and formed in addition, acetabular bone alignment device can determine the implant angle of acetabular bone place prosthese easily.
With above-mentioned according to desirable embodiment of the present utility model for enlightenment, by above-mentioned description, relevant staff in the scope not departing from this utility model technological thought, can carry out various change and amendment completely.The technical scope of this utility model is not limited to the content in description, must determine its technical scope according to right.
Claims (3)
1. an acetabular bone alignment device, it is characterized in that: comprise acetabular bone physiology reference plane (3), anterior superior iliac spine floats contact pin (1), anterior inferior iliac spine floats contact pin (2), sciatic nerve incisura contact pin (4), described anterior superior iliac spine floats contact pin (1), anterior inferior iliac spine floats contact pin (2), sciatic nerve incisura contact pin (4) is positioned at acetabular bone physiology reference plane (3) homonymy, described anterior superior iliac spine floats contact pin (1), the anterior inferior iliac spine contact pin (2) that floats is connected with acetabular bone physiology reference plane (3) is vertical, described anterior superior iliac spine floats contact pin (1), the float length of contact pin (2) of anterior inferior iliac spine is identical, the comparatively described anterior superior iliac spine of described sciatic nerve incisura contact pin (4) floats contact pin (1), anterior inferior iliac spine floats contact pin (2) long 70mm-80mm, described sciatic nerve incisura contact pin (4) is fixedly connected with acetabular bone physiology reference plane (3) by universal joint.
2. acetabular bone alignment device as claimed in claim 1, is characterized in that: float contact pin (1), anterior inferior iliac spine of described anterior superior iliac spine floats the spacing scalable of contact pin (2).
3. acetabular bone alignment device as claimed in claim 2, is characterized in that: float contact pin (1), anterior inferior iliac spine of the comparatively described anterior superior iliac spine of described sciatic nerve incisura contact pin (4) floats contact pin (2) long 75mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420574252.0U CN204147123U (en) | 2014-09-30 | 2014-09-30 | Acetabular bone alignment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420574252.0U CN204147123U (en) | 2014-09-30 | 2014-09-30 | Acetabular bone alignment device |
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| Publication Number | Publication Date |
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| CN204147123U true CN204147123U (en) | 2015-02-11 |
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| CN201420574252.0U Active CN204147123U (en) | 2014-09-30 | 2014-09-30 | Acetabular bone alignment device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104306065A (en) * | 2014-09-30 | 2015-01-28 | 创生医疗器械（中国）有限公司 | Acetabulum line aligning device and method |
-
2014
- 2014-09-30 CN CN201420574252.0U patent/CN204147123U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104306065A (en) * | 2014-09-30 | 2015-01-28 | 创生医疗器械（中国）有限公司 | Acetabulum line aligning device and method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |