CN203244474U - Hip joint simple combined handle - Google Patents
Hip joint simple combined handle Download PDFInfo
- Publication number
- CN203244474U CN203244474U CN 201320264657 CN201320264657U CN203244474U CN 203244474 U CN203244474 U CN 203244474U CN 201320264657 CN201320264657 CN 201320264657 CN 201320264657 U CN201320264657 U CN 201320264657U CN 203244474 U CN203244474 U CN 203244474U
- Authority
- CN
- China
- Prior art keywords
- femoral stem
- hip joint
- joint simple
- combined handle
- simple combined
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/32—Joints for the hip
- A61F2/36—Femoral heads ; Femoral endoprostheses
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
Landscapes
- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
Abstract
The utility model relates to a hip joint simple combined handle. The hip joint simple combined handle comprises a femoral stem upper end (3), a femoral stem middle end (2) and a femoral stem lower end (1), and is characterized in that the femoral stem lower end (1) is a long cylinder in shape, a far end of the femoral stem lower end (1) is conical, a plurality of longitudinal grooves (11) are evenly distributed in the periphery of the femoral stem lower end (1), a positioning boss (12) is arranged at the end, connected with the femoral stem middle end (2), of the femoral stem lower end (1), a threaded hole (23) and a concave platform (21) are arranged at the upper end and the lower end of the femoral stem middle end (2) respectively, the femoral stem upper end (3) is cylindrical, a thread (31) is arranged at the end, connected with the femoral stem middle end (2), of the femoral stem upper end (3), and the femoral stem middle end (2) is a multi-hole tantalum workpiece. The hip joint simple combined handle is high in surface friction coefficient, is stable in structure, and largely improves the biological compatibility of the artificial joint. Meanwhile, the mechanical and biological features are similar to those of a bond of the human body, so that the mechanical properties of the hip joint simple combined handle are well met.
Description
Technical field
This utility model relates to medical domain bone displacement graft materials, relates in particular to a kind of hip joint simple combination handle.
Background technology
In the various hip joint disease of therapeutic treatment late period such as femur head necrosis, osteoarthritis, and a variety of causes hip joint destruction of causing etc., generally adopt the method for hip replacement surgery.The cardinal principle of hip replacement surgery is: implant by made hip joint, to rebuild the anatomical structure of human hip, and make it obtain normal mechanical property to finish certain physiological function, reach thus alleviating pain, improve the purpose of function.Artificial hip joint is to be made of the first-class parts of femoral stem, acetabular cup and femur, wherein femoral stem is as the link that connects human femur under loading and human body far-end, play fixing and supporting role in human body, its structural design and material property are directly connected to the therapeutic effect of hip replacement surgery.Aspect material category, cobalt-base alloys and titanium alloy have become one of material that artificial joint the most generally adopts with its good wearability, corrosion resistance and good mechanical characteristic.
How the matching of metal hip joint handle directly has influence on the surgical effect of hip replacement.Because the increase of the anatomical difference of human femur under loading pulp cavity and various deformity of hip joint and even the operation of more and more hip revision, the demand degree that prosthetic designs is adapted to various deformities is more and more higher.And traditional metal hip joint handle is after operation, and its metal surface treatment technology is relevant with the degree that bone is grown into, and directly has influence on the fixed effect of hip joint.In addition, in the prior art, select and the structure of hip joint combined handle arranges the certain defective of upper existence, causes it can occur repelling with tissue after long-time the use, and biocompatibility is relatively poor and affect its service life.How to address the above problem is that this area is demanded the problem studied at present urgently.
The utility model content
The purpose of this utility model is to provide a kind of hip joint simple combination handle, and this hip joint combined handle is simple in structure, stable, has good biocompatibility concurrently.
The purpose of this utility model is achieved in that
A kind of hip joint simple combination handle, it comprises femoral stem upper end, femoral stem middle-end and femoral stem lower end, it is characterized in that: described femoral stem lower end is oval column, far-end is taper, a plurality of longitudinal grooves evenly distribute on its circumference, strengthening its antitorque and anti-rotational stability, and be provided with positioning boss on described femoral stem lower end and the end that described femoral stem middle-end is connected; Described femoral stem middle-end is respectively arranged with screwed hole, recessed platform in two ends up and down; Described femoral stem upper end is cylindrical shape, and its with a end that described femoral stem middle-end is connected on be provided with screw thread; Described femoral stem middle-end is the porous tantalum product.
Above-mentioned femoral stem middle-end adopts the porous tantalum product, and its porosity is 60～70%.Find that through studying for a long period of time the porous tantalum product in the biocompatibility that has greatly improved hip joint combined handle, has also well satisfied its mechanical property, greatly improved its service life and implanted comfort level.Above-mentioned porous tantalum product can adopt the preparations such as foam dipping method, die pressing.
Above-mentioned femoral stem middle-end is passed through the recessed platform on it, and behind the positioning boss of the femoral stem lower end realization location, makes integrated connection together by welding again, and more solid and reliable.
The utlity model has following beneficial effect:
Its femoral stem middle-end of this utility model is to have the porous product structure that bone is grown into, hole on the rough external surface is inwardly grown, and the structure of growing in the formation organically combines as a whole with body bone tissue, reach real biological fixation, strengthened the stability that femoral stem is implanted.This hip joint combined handle skin-friction coefficient is high, Stability Analysis of Structures has not only improved the biocompatibility of this artificial joint greatly, simultaneously mechanics and the similar people's bone of biological property, well satisfied its mechanical property, greatly improved the service life of this artificial joint and implanted comfort level.
Description of drawings
Fig. 1 is the structural representation after the hip joint simple combination handle among this utility model embodiment 1 makes up.
Fig. 2 is the structural representation after each structure of hip joint simple combination handle among this utility model embodiment 1 splits.
The specific embodiment
Be this utility model preferred embodiment below, and be not be used to limiting protection domain of the present utility model.
Shown in Fig. 1～2: a kind of hip joint simple combination handle, it comprises femoral stem upper end 3, femoral stem middle-end 2 and femoral stem lower end 1; Femoral stem lower end 1 is oval column, and far-end is taper, and a plurality of longitudinal grooves 11 that evenly distribute on its circumference strengthening its antitorque and anti-rotational stability, and are provided with positioning boss 12 on femoral stem lower end 1 and the end that femoral stem middle-end 2 is connected; The femoral stem middle-end is respectively arranged with screwed hole 23, recessed platform 21 in two ends about in the of 2; Femoral stem upper end 3 be cylindrical shape, and its with a end that femoral stem middle-end 2 is connected on be provided with screw thread 31, by the screwed hole 23 of setting on screw thread 31 and the femoral stem middle-end 2, realize being fixedly connected with of the two; Femoral stem middle-end 2 is the porous tantalum product, and its porosity is 60～70%; The recessed platform 21 that femoral stem middle-end 2 is passed through on it, and after the corresponding positioning boss that arranges 12 is realized the location on the femoral stem lower end 1, make integrated connection together by laser weld again, and more solid and reliable.
Claims (3)
1. hip joint simple combination handle, it comprises femoral stem upper end (3), femoral stem middle-end (2) and femoral stem lower end (1), it is characterized in that: described femoral stem lower end (1) is oval column, far-end is taper, the a plurality of longitudinal grooves (11) that evenly distribute on its circumference, and be provided with positioning boss (12) on described femoral stem lower end (1) and the end that described femoral stem middle-end (2) is connected; Described femoral stem middle-end (2) up and down two ends is respectively arranged with screwed hole (23), recessed platform (21); Described femoral stem upper end (3) is cylindrical shape, and its with a end that described femoral stem middle-end (2) is connected on be provided with screw thread (31); Described femoral stem middle-end (2) is the porous tantalum product.
2. hip joint simple combination handle according to claim 1 is characterized in that: described femoral stem middle-end (2), adopt the porous tantalum product, and its porosity is 60～70%.
3. hip joint simple combination handle according to claim 1 and 2, it is characterized in that: described femoral stem middle-end (2) is by the recessed platform (21) on it, after realizing the location with the positioning boss (12) of femoral stem lower end (1), make integrated connection together by welding again, and more solid and reliable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320264657 CN203244474U (en) | 2013-05-16 | 2013-05-16 | Hip joint simple combined handle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320264657 CN203244474U (en) | 2013-05-16 | 2013-05-16 | Hip joint simple combined handle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203244474U true CN203244474U (en) | 2013-10-23 |
Family
ID=49370945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320264657 Expired - Fee Related CN203244474U (en) | 2013-05-16 | 2013-05-16 | Hip joint simple combined handle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203244474U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104622603A (en) * | 2015-02-10 | 2015-05-20 | 北京市春立正达医疗器械股份有限公司 | Combined type femoral stem |
| CN106913401A (en) * | 2015-12-25 | 2017-07-04 | 重庆润泽医药有限公司 | A kind of multisection type hip joint |
| CN106913396A (en) * | 2015-12-25 | 2017-07-04 | 重庆润泽医药有限公司 | One kind implantation hip joint |
-
2013
- 2013-05-16 CN CN 201320264657 patent/CN203244474U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104622603A (en) * | 2015-02-10 | 2015-05-20 | 北京市春立正达医疗器械股份有限公司 | Combined type femoral stem |
| CN106913401A (en) * | 2015-12-25 | 2017-07-04 | 重庆润泽医药有限公司 | A kind of multisection type hip joint |
| CN106913396A (en) * | 2015-12-25 | 2017-07-04 | 重庆润泽医药有限公司 | One kind implantation hip joint |
| CN106913401B (en) * | 2015-12-25 | 2019-02-19 | 重庆润泽医药有限公司 | A kind of multisection type hip joint |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131023 Termination date: 20190516 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |