CN103120605A - Physiological type implant hip joint stem - Google Patents
Physiological type implant hip joint stem Download PDFInfo
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- CN103120605A CN103120605A CN2012105419385A CN201210541938A CN103120605A CN 103120605 A CN103120605 A CN 103120605A CN 2012105419385 A CN2012105419385 A CN 2012105419385A CN 201210541938 A CN201210541938 A CN 201210541938A CN 103120605 A CN103120605 A CN 103120605A
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- femoral stem
- bone
- hip joint
- stem
- trabecular bone
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Abstract
The invention provides a physiological type implant hip joint stem which is characterized in that the proximal segment surface of a femoral stem is designed as a trabecular bone form, the trabecular bone is in a quadrilateral dimensional structure, the voidage of the trabecular bone takes up 50%-70% of the superficial area, the diameter of interspaces of the structure is from 200 micrometers to 400 micrometers, the trabecular bone is totally connected with a femoral stem main body, the trabecular bone and the femoral stem main body are made of the same materials and are in an integral structure, an inner layer of the trabecular bone of the femoral stem is a compact metal layer, the thickness of the compact metal layer is from 1 millimeter to 5 millimeters, the inner portion of the femoral stem is in a hollow structure, the inner portion of the femoral stem is designed as a support net frame which is in a parallelogram structure, the thickness of a thin-walled structure of the net frame is from 0.1 millimeter to 4 millimeters, the rounded tip portion of the femoral stem is a bone marrow channel which is communicated with the femoral stem, and a plurality of channels which are communicated with the hollow portion are arranged on the surface of the femoral stem.
Description
Technical field
The present invention relates to the handle of the implanted femur near-end of hip joint in orthopedics's osteoarthrosis.
Background technology
Since the seventies in last century, due to the progress of artificial product technology, in developed country because degeneration and other bone lesion, joint replacement has become the most important measure for the treatment of, and progressively enlarging the use crowd, making the patient that incompetent movable basis arranged, the life-span is significant prolongation also; But hip joint is becoming flexible because of femoral stem often, cause using a period of time just need to carry out for the second time or displacement for the third time, the femoral stem of therefore inventing new artificial hip joint, make artificial femur handle become bone implantation body, closely merge with femur top, one on physiology reduces or eliminates because of the loosening of femoral stem replacement joint again, has become the medical problem of being badly in need of solution.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, proposing a kind of artificial hip joint femoral shaft part can combine together fully with near end of thighbone, realize the physiological function identical with the human femur under loading epimere, epimere and the bone that namely can be planted in reliably femur combine together, and possess again the bion implantation body hip joint stalk of femur upper segment hemopoietic function.
The present invention realizes in the following way: a kind of bion implantation body hip joint stalk, it is characterized in that, the nearly section surface of femoral stem is designed to the bone trabecula form, and bone trabecula is the tetragon stereochemical structure, bone trabecular voidage accounts for 50～70% of surface area, footpath 200～400 μ m between the space of structure; Bone trabecula is connected fully with the femoral stem main body, is the integrative-structure that uses same material to make; The bone trabecula internal layer of femoral stem is the thick densified metal layer of 1～5mm, and femoral stem inside is hollow-core construction, and its indoor design has the support rack of parallelogram sturcutre, and rack thin-wall construction thickness is 0.1-4mm; The round tip of femoral stem is divided into the bone marrow passage that communicates with femoral stem, is provided with the some passages that communicate with hollow space on the surface of femoral stem.
A kind of bion implantation body hip joint stalk, it is characterized in that, the top of femoral stem is to be connected with the artificial femur neck and the position of implant infrastructure, there is oval artificial femur neck mounting structure the inboard, the work connecting device that the promising artificial femur handle in the outside, top is installed and pulled out, the top of femoral stem can be connected with artificial femur neck prosthese cervical region.
Beneficial effect of the present invention is, first, realized that the fusion of artificial hip joint stem fixes and coordinate installation function: the nearly section surface of (1) femoral stem is designed to the bone trabecula form, bone trabecula is the tetragon stereochemical structure, bone trabecular voidage accounts for 50～70% of surface area, footpath 200～400 μ m between the space of structure; Be integrated with the femoral stem main body; (2) the bone trabecula internal layer of femoral stem is the thick densified metal layer of 1～5mm, is the main part of this femoral stem and main load-carrying members, and active force is delivered to the epimere of femur by the trabecular bone structure on surface; (3) femoral stem inside is hollow-core construction, in order to reach the stress reliability of femoral stem, indoor design is the support rack of parallelogram structure, with structural reliability and the fatigue strength of strengthening this femoral stem, this makes the present invention both alleviate weight, its elastic modelling quantity also significantly reduces, and plays the more uniform effect of stress distribution; The second, realize the hemopoietic function of medullary cavity: the bone marrow passage of (1) femoral stem circle tip design for communicating with femoral stem, after implanting, bone marrow can be in the hollow space of handle be grown in the bottom; (2) peripheral part at handle sets out the passage that communicates with hollow space in advance, the part of bone marrow can be grown into, and the needed blood supply of the bone marrow of setting up hollow space and neuromechanism, the passage of formation marrow hemopoietic stem cells and blood circulation cross streams, the hemopoietic function of performance bone marrow; The present invention makes artificial femur handle become bone implantation body, closely merge with femur top, and this joint handle inside is hollow structure, has the space to be connected with hollow space around handle, forms bone marrow in handle, participation hemopoietic, integrated on the physiology function.
Description of drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is bone trabecular structure division enlarged drawing.
Fig. 3 is internal structure schematic diagram of the present invention.
The specific embodiment
Embodiment 1, a kind of bion implantation body hip joint stalk, as shown in Figure 1, 2, 3, it is characterized in that, the nearly section surface of femoral stem 1 is designed to the bone trabecula form, and bone trabecula 2 is the tetragon stereochemical structure, bone trabecular voidage accounts for 50～70% of surface area, footpath 200～400 μ m between the space of structure; Bone trabecula is connected fully with the femoral stem main body, is the integrative-structure that uses same material to make; The bone trabecula internal layer of femoral stem is the thick densified metal layer of 1～5mm 3, and femoral stem inside is hollow-core construction, and its indoor design has the support rack 4 of parallelogram sturcutre; The round tip of femoral stem is divided into the bone marrow passage 5 that communicates with femoral stem, is provided with the some passages 6 that communicate with hollow space on the surface of femoral stem.
A kind of bion implantation body hip joint stalk, it is characterized in that, the top of femoral stem is to be connected with the artificial femur neck and the position of implant infrastructure, there is oval artificial femur neck mounting structure the inboard, the work connecting device that the promising artificial femur handle in the outside, top is installed and pulled out, the top of femoral stem can be connected with artificial femur neck prosthese cervical region 7.
Claims (2)
1. a bion implantation body hip joint stalk, is characterized in that, the nearly section surface of femoral stem is designed to the bone trabecula form, and bone trabecula is the tetragon stereochemical structure, and bone trabecular voidage accounts for 50～70% of surface area, footpath 200～400 μ m between the space of structure; Bone trabecula is connected fully with the femoral stem main body, is the integrative-structure that uses same material to make; The bone trabecula internal layer of femoral stem is the thick densified metal layer of 1～5mm, and femoral stem inside is hollow-core construction, and its indoor design has the support rack of parallelogram sturcutre, and rack thin-wall construction thickness is 0.1-4mm; The round tip of femoral stem is divided into the bone marrow passage that communicates with femoral stem, is provided with the some passages that communicate with hollow space on the surface of femoral stem.
2. a kind of bion according to claim 1 implantation body hip joint stalk, it is characterized in that, the top of femoral stem is to be connected with the artificial femur neck and the position of implant infrastructure, there is oval artificial femur neck mounting structure the inboard, the work connecting device that the promising artificial femur handle in the outside, top is installed and pulled out, the top of femoral stem can be connected with artificial femur neck prosthese cervical region.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105419385A CN103120605A (en) | 2012-12-14 | 2012-12-14 | Physiological type implant hip joint stem |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105419385A CN103120605A (en) | 2012-12-14 | 2012-12-14 | Physiological type implant hip joint stem |
Publications (1)
| Publication Number | Publication Date |
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| CN103120605A true CN103120605A (en) | 2013-05-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN2012105419385A Pending CN103120605A (en) | 2012-12-14 | 2012-12-14 | Physiological type implant hip joint stem |
Country Status (1)
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| CN (1) | CN103120605A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105055051A (en) * | 2015-08-11 | 2015-11-18 | 嘉思特华剑医疗器材(天津)有限公司 | Bone trabecula hip joint system |
| CN106491247A (en) * | 2016-12-27 | 2017-03-15 | 西安交通大学 | A kind of hollow buffer structure for artificial prosthesis |
| CN108125735A (en) * | 2017-12-25 | 2018-06-08 | 北京爱康宜诚医疗器材有限公司 | Type femoral bone end prosthesis |
| CN112773572A (en) * | 2021-02-10 | 2021-05-11 | 北京爱康宜诚医疗器材有限公司 | Femoral head internal support prosthesis and manufacturing method thereof |
Citations (9)
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|---|---|---|---|---|
| US4878919A (en) * | 1983-11-30 | 1989-11-07 | Ceske Vysoke Uceni Technicke | Artificial hip endo-limb |
| EP0603976A2 (en) * | 1992-12-21 | 1994-06-29 | Bristol-Myers Squibb Company | Partially resorbable implant |
| US5571185A (en) * | 1991-10-12 | 1996-11-05 | Eska Implants Gmbh | Process for the production of a bone implant and a bone implant produced thereby |
| CN1416330A (en) * | 2000-01-30 | 2003-05-07 | 岱密克龙有限公司 | Component for prosthetic joint having diamond load bearing and articulation surface |
| CN201131820Y (en) * | 2007-12-28 | 2008-10-15 | 李西成 | Improved artificial femoral head capable of grafting bone and blending |
| CN201164513Y (en) * | 2008-03-03 | 2008-12-17 | 曼德卡姆有限公司 | Artificial hip joint and femur shaft |
| CN101708134A (en) * | 2009-06-01 | 2010-05-19 | 北京爱康宜诚医疗器材有限公司 | Artificial hip stem with low elasticity modulus |
| CN101843533A (en) * | 2010-05-18 | 2010-09-29 | 徐英忱 | Artificial hip joint on bone trabecula microporous surface |
| CN203074931U (en) * | 2012-12-14 | 2013-07-24 | 山东省文登市整骨科技开发有限公司 | Physiological type implant hip joint stem |
-
2012
- 2012-12-14 CN CN2012105419385A patent/CN103120605A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4878919A (en) * | 1983-11-30 | 1989-11-07 | Ceske Vysoke Uceni Technicke | Artificial hip endo-limb |
| US5571185A (en) * | 1991-10-12 | 1996-11-05 | Eska Implants Gmbh | Process for the production of a bone implant and a bone implant produced thereby |
| EP0603976A2 (en) * | 1992-12-21 | 1994-06-29 | Bristol-Myers Squibb Company | Partially resorbable implant |
| CN1416330A (en) * | 2000-01-30 | 2003-05-07 | 岱密克龙有限公司 | Component for prosthetic joint having diamond load bearing and articulation surface |
| CN201131820Y (en) * | 2007-12-28 | 2008-10-15 | 李西成 | Improved artificial femoral head capable of grafting bone and blending |
| CN201164513Y (en) * | 2008-03-03 | 2008-12-17 | 曼德卡姆有限公司 | Artificial hip joint and femur shaft |
| CN101708134A (en) * | 2009-06-01 | 2010-05-19 | 北京爱康宜诚医疗器材有限公司 | Artificial hip stem with low elasticity modulus |
| CN101843533A (en) * | 2010-05-18 | 2010-09-29 | 徐英忱 | Artificial hip joint on bone trabecula microporous surface |
| CN203074931U (en) * | 2012-12-14 | 2013-07-24 | 山东省文登市整骨科技开发有限公司 | Physiological type implant hip joint stem |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105055051A (en) * | 2015-08-11 | 2015-11-18 | 嘉思特华剑医疗器材(天津)有限公司 | Bone trabecula hip joint system |
| CN105055051B (en) * | 2015-08-11 | 2018-01-12 | 嘉思特华剑医疗器材(天津)有限公司 | Bone trabecula hip joint system |
| CN106491247A (en) * | 2016-12-27 | 2017-03-15 | 西安交通大学 | A kind of hollow buffer structure for artificial prosthesis |
| CN106491247B (en) * | 2016-12-27 | 2017-12-26 | 西安交通大学 | A kind of hollow buffer structure for artificial prosthesis |
| CN108125735A (en) * | 2017-12-25 | 2018-06-08 | 北京爱康宜诚医疗器材有限公司 | Type femoral bone end prosthesis |
| CN112773572A (en) * | 2021-02-10 | 2021-05-11 | 北京爱康宜诚医疗器材有限公司 | Femoral head internal support prosthesis and manufacturing method thereof |
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Application publication date: 20130529 |