CN204766046U - Bone cement mould hip joint - Google Patents
Bone cement mould hip joint Download PDFInfo
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- CN204766046U CN204766046U CN201520457111.5U CN201520457111U CN204766046U CN 204766046 U CN204766046 U CN 204766046U CN 201520457111 U CN201520457111 U CN 201520457111U CN 204766046 U CN204766046 U CN 204766046U
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- supporting surface
- bone
- joint handle
- hip joint
- holding surface
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Abstract
The utility model provides a bone cement mould hip joint belongs to the orthopedic medical devices field, including the acetabular bone false body, the bulb, thighbone neck and joint handle, the bulb is located the acetabular bone false body, the one end linkage ball of thighbone neck, the near -end of joint handle is connected to the other end of thighbone neck, the distal end of joint handle is used for inserting in the thighbone pulp cavity, be equipped with a plurality of supporter on the outer wall of joint handle, the supporter includes first holding surface, second holding surface and third holding surface, the wall connection of first holding surface and joint handle, first holding surface, two liang second holding surfaces and third holding surfaces are perpendicular, the second holding surface is located the top of first holding surface, the third holding surface is located between first holding surface and the second holding surface. The utility model discloses fill fully when pouring into bone cement into between joint handle and the pulp cavity, the joint handle is difficult to become flexible and sink, and its steadiness is good, heavy burden effect ideal.
Description
Technical field
This utility model relates to orthopaedics medical instruments field, specifically a kind of bone-cement type hip joint.
Background technology
Artificial hip joint replacing operation has become a kind of relatively common surgical operation in medical circle at present, but remains an everyway in the problem constantly explored as the implant artificial hip joint femoral shaft stability how remained in femoral bone cavitas medullaris of femur.In recent years along with the progress of industrial technology constantly has novel artificial hip joint to occur.At present, mainly contain biotype hip joint and bone-cement type hip joint, bone-cement type hip joint due to bone-cement type hip joint longer than the service time of biotype hip joint for service time, and seldom there is limbs pain afterwards in displacement, the splitting of less generation femoral shaft, good hip movable function can be obtained after displacement, thus the patient of person in middle and old age is more applicable to, therefore, bone-cement type hip joint becomes the first-selection that middle-older patient does artificial hip replacement surgery, if but fill insufficient when injecting bone cement between joint handle and pulp cavity, joint handle easily loosens and sinks, its steadiness is deteriorated, its heavy burden effect is also not ideal enough, this utility model has made further improvement for the problems referred to above.
Summary of the invention
Problem to be solved in the utility model is: overcome the deficiencies in the prior art, fills fully when providing one to inject bone cement between joint handle and pulp cavity, and joint handle is not easy to loosen and sink, and its steadiness is good, the bone-cement type hip joint bearing a heavy burden satisfactory for result.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of bone-cement type hip joint, comprise acetabular component, bulb, neck of femur and joint handle, described bulb is positioned at acetabular component, one end connecting ball head of described neck of femur, the other end of described neck of femur connects the near-end of joint handle, the far-end of described joint handle is for inserting in femoral bone cavitas medullaris, the far-end outer wall of described joint handle is provided with several supporters, described supporter comprises the first supporting surface, second supporting surface and the 3rd supporting surface, described first supporting surface is connected with the outer wall of joint handle, described first supporting surface, second supporting surface is vertical between two with the 3rd supporting surface, described second supporting surface is positioned at the top of the first supporting surface, described 3rd supporting surface is between the first supporting surface and the second supporting surface.
Further, described first supporting surface, the second supporting surface and the 3rd supporting surface are triangular structure.
Further, described 3rd supporting surface is right angled triangle.
Further, the outside of described joint handle is provided with a drainage trough, and described drainage trough runs through near-end and the far-end of joint handle.
Further, the inner side of described joint handle is also provided with a groove.
Further, the material of described acetabular component is high hinge ultra-high molecular weight polyethylene or ultra-high molecular weight polyethylene.
Further, the material of described bulb is CoCrMo alloy or pottery.
Further, the material of described joint handle is CoCrMo alloy.
Further, the material of described supporter is CoCrMo alloy.
The advantage that this utility model has and good effect are:
(1) this utility model bone-cement type hip joint, service time is long, and seldom occurs limbs pain afterwards in displacement, the splitting of less generation femoral shaft, can obtain good hip movable function after displacement, is more applicable to the patient of person in middle and old age.
(2) this utility model is provided with supporter on the outer wall of joint handle, fills fully when making to inject bone cement between joint handle and pulp cavity, and joint handle is not easy to loosen and sink, and its steadiness is good, bears a heavy burden satisfactory for result.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model bone-cement type hip joint.
Fig. 2 is the structural representation of the drainage trough of this utility model bone-cement type hip joint.
Fig. 3 is the structural representation of the supporter of this utility model bone-cement type hip joint.
In figure: 1, acetabular component; 2, bulb; 3, neck of femur; 4, joint handle; 5, supporter; 6, the first supporting surface; 7, the second supporting surface; 8, the 3rd supporting surface; 9, drainage trough; 10, groove; 11, near-end; 12, far-end.
Detailed description of the invention
As Figure 1-3, a kind of bone-cement type hip joint, comprise acetabular component 1, bulb 2, neck of femur 3 and joint handle 4, bulb 2 is positioned at acetabular component 1, one end connecting ball head 2 of neck of femur 3, the other end of neck of femur 3 connects the near-end 11 of joint handle 4, the far-end 12 of joint handle 4 is for inserting in femoral bone cavitas medullaris, far-end 12 outer wall of joint handle 4 is provided with six supporters 5, supporter 5 comprises the first supporting surface 6 of triangular structure, second supporting surface 7 and the 3rd supporting surface 8, 3rd supporting surface 8 is right angled triangle, first supporting surface 6 is connected with the outer wall of joint handle 4, first supporting surface 6, second supporting surface 7 is vertical between two with the 3rd supporting surface 8, second supporting surface 7 is positioned at the top of the first supporting surface 6, 3rd supporting surface 8 is between the first supporting surface 6 and the second supporting surface 7, the outside of joint handle 4 is provided with a drainage trough 9, drainage trough 9 runs through near-end 11 and the far-end 12 of joint handle 4, the inner side of joint handle 4 is also provided with a groove 10, the material of acetabular component 1 is high hinge ultra-high molecular weight polyethylene or ultra-high molecular weight polyethylene, the material of bulb 2 is CoCrMo alloy, the material of joint handle 4 is CoCrMo alloy, the material of supporter 5 is CoCrMo alloy.
The work process of this example: the far-end 12 of joint handle 4 is inserted in femoral bone cavitas medullaris, and along groove 10, the spongiosa in femoral bone cavitas medullaris is struck off, bone cement injected in the space between joint handle 4 and femoral bone cavitas medullaris along drainage trough 9, ensure there are enough bone cements outside joint handle 4, the outer wall of the far-end 12 of joint handle 4 is provided with supporter 5, bone cement can flow into the first supporting surface 6 of supporter 5, second supporting surface 7 and the 3rd supporting surface 8 are around, make the Cement fixation that injects between joint handle 4 and pulp cavity abundant, joint handle 4 is not easy to loosen and sink, steadiness is good, bear a heavy burden satisfactory for result.
Above embodiment of the present utility model has been described in detail, but described content being only preferred embodiments of the present utility model, can not being considered to for limiting practical range of the present utility model.All equalizations done according to this utility model application range change and improve, and all should still belong within patent covering scope of the present utility model.
Claims (9)
1. a bone-cement type hip joint, comprise acetabular component, bulb, neck of femur and joint handle, it is characterized in that: described bulb is positioned at acetabular component, one end connecting ball head of described neck of femur, the other end of described neck of femur connects the near-end of joint handle, the far-end of described joint handle is for inserting in femoral bone cavitas medullaris, the far-end outer wall of described joint handle is provided with several supporters, described supporter comprises the first supporting surface, second supporting surface and the 3rd supporting surface, described first supporting surface is connected with the outer wall of joint handle, described first supporting surface, second supporting surface is vertical between two with the 3rd supporting surface, described second supporting surface is positioned at the top of the first supporting surface, described 3rd supporting surface is between the first supporting surface and the second supporting surface.
2. a kind of bone-cement type hip joint according to claim 1, is characterized in that: described first supporting surface, the second supporting surface and the 3rd supporting surface are triangular structure.
3. a kind of bone-cement type hip joint according to claim 2, is characterized in that: described 3rd supporting surface is right angled triangle.
4. a kind of bone-cement type hip joint according to claim 1, it is characterized in that: the outside of described joint handle is provided with a drainage trough, described drainage trough runs through near-end and the far-end of joint handle.
5. a kind of bone-cement type hip joint according to claim 1, is characterized in that: the inner side of described joint handle is also provided with a groove.
6. a kind of bone-cement type hip joint according to any one of claim 1-5, is characterized in that: the material of described acetabular component is high hinge ultra-high molecular weight polyethylene or ultra-high molecular weight polyethylene.
7. a kind of bone-cement type hip joint according to any one of claim 1-5, is characterized in that: the material of described bulb is CoCrMo alloy or pottery.
8. a kind of bone-cement type hip joint according to any one of claim 1-5, is characterized in that: the material of described joint handle is CoCrMo alloy.
9. a kind of bone-cement type hip joint according to any one of claim 1-5, is characterized in that: the material of described supporter is CoCrMo alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520457111.5U CN204766046U (en) | 2015-06-29 | 2015-06-29 | Bone cement mould hip joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520457111.5U CN204766046U (en) | 2015-06-29 | 2015-06-29 | Bone cement mould hip joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204766046U true CN204766046U (en) | 2015-11-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520457111.5U Active CN204766046U (en) | 2015-06-29 | 2015-06-29 | Bone cement mould hip joint |
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| CN (1) | CN204766046U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104905896A (en) * | 2015-06-29 | 2015-09-16 | 北京贝思达生物技术有限公司 | Bone-cement type hip joint |
-
2015
- 2015-06-29 CN CN201520457111.5U patent/CN204766046U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104905896A (en) * | 2015-06-29 | 2015-09-16 | 北京贝思达生物技术有限公司 | Bone-cement type hip joint |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |