CN203244475U - Femur implant - Google Patents
Femur implant Download PDFInfo
- Publication number
- CN203244475U CN203244475U CN 201320289932 CN201320289932U CN203244475U CN 203244475 U CN203244475 U CN 203244475U CN 201320289932 CN201320289932 CN 201320289932 CN 201320289932 U CN201320289932 U CN 201320289932U CN 203244475 U CN203244475 U CN 203244475U
- Authority
- CN
- China
- Prior art keywords
- implant
- porous tantalum
- femur
- femoral stem
- neck
- 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
-
- 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 discloses a femur implant which comprises a femoral neck 1, a porous tantalum handle sleeve 2 and a femoral stem 3, wherein the femoral neck 1 is pasted with the femoral stem 3; the femoral stem 3 is sleeved with the porous tantalum handle sleeve 2 near to one end of the femoral neck 1; the shape of an inner cavity of the porous tantalum handle sleeve 2 is identical with the shape of the outer surface at the corresponding position of the femoral stem 3; the porous tantalum handle sleeve 2 is divided into an upper piece and a lower piece which are connected through rivets 5; one or more horizontal bulges 4 distributed at equal intervals are arranged on the outer surface of the porous tantalum handle sleeve 2. The femur implant adopting the structure reduces the harm of the implant to fragile bones, improves the biocompatibility of the implant, and enables the implant to be more stable and durable.
Description
Technical field
This utility model relates to a kind of femur implant, relates in particular to a kind of, good biocompatibility little to frangible bone injury evil, stablizes durable femur implant.
Background technology
Implant operation is a kind for the treatment of and the operation of repairing bone injury, has brought into play great role in the treatment at each position of health, is widely applied.Implant operation often is used for the treatment of Hip injury, with the implant implant into body to substitute original osseous tissue.The femur implant surface generally has longitudinal fluting in the prior art, its role is to reduce shearing force, increases bone cement to the adhewsive action of implant.But existing implant exists frangible bone injury is harmful greatly, biocompatibility is bad, stablize the defectives such as ruggedness is not strong, is still waiting further improvement.
The utility model content
In view of the foregoing defects the prior art has, this utility model aims to provide a kind of, good biocompatibility little to frangible bone injury evil, stablizes durable femur implant.
To achieve these goals, this utility model by the following technical solutions: the femur implant is comprised of neck of femur, porous tantalum sleeve and femoral stem; Described neck of femur and described femoral stem are bonding; Described femoral stem has the porous tantalum sleeve at the end cover near described neck of femur; The external surface shape of the cavity shape of described porous tantalum sleeve and described femoral stem correspondence position is identical; Described porous tantalum sleeve is divided into two up and down, and two are connected by rivet up and down; Described porous tantalum sleeve outer surface is with one or more horizontal projection that equidistantly distributes.
As the improvement to the technical program, described horizontal projection quantity is four.
Compared with the prior art, this utility model has reduced the injury of implant to frangible bone owing to adopted technique scheme, has improved the biocompatibility of implant, and it is durable that implant is stablized more.
Description of drawings
Fig. 1 is the structural representation of this utility model embodiment.
Among the figure: 1 neck of femur, 2 porous tantalum sleeves, 3 femoral stem, 4 horizontal projection, 5 rivets.
The specific embodiment
Below by embodiment this utility model is carried out concrete description; be necessary to be pointed out that at this following examples only are used for this utility model is further detailed; can not be interpreted as the restriction to this utility model protection domain, those skilled in the art can make some nonessential improvement and adjustment to this utility model according to foregoing.
Embodiment: a kind of femur implant, as shown in Figure 1, the femur implant is comprised of neck of femur 1, porous tantalum sleeve 2 and femoral stem 3; Described neck of femur 1 and described femoral stem 3 are bonding; Described femoral stem 3 has porous tantalum sleeve 2 at the end cover near described neck of femur 1; The external surface shape of the cavity shape of described porous tantalum sleeve 2 and described femoral stem 3 correspondence positions is identical; Described porous tantalum sleeve 2 is divided into two up and down, and two are connected by rivet 5 up and down; Described porous tantalum sleeve 2 outer surfaces are with one or more horizontal projection that equidistantly distributes 4.
In the present embodiment, described horizontal projection 4 quantity are four.
Porous tantalum sleeve hardness is less, and biocompatibility is stronger, can effectively reduce implant to the injury of frangible bone, can improve healing effect, and it is durable that the femur implant is stablized more.
Claims (2)
1. femur implant, it is characterized in that: described femur implant is comprised of neck of femur (1), porous tantalum sleeve (2) and femoral stem (3); Described neck of femur (1) and described femoral stem (3) are bonding; Described femoral stem (3) has porous tantalum sleeve (2) at the end cover near described neck of femur (1); The external surface shape of the cavity shape of described porous tantalum sleeve (2) and described femoral stem (3) correspondence position is identical; Described porous tantalum sleeve (2) is divided into two up and down, and two are connected by rivet (5) up and down; Described porous tantalum sleeve (2) outer surface is with one or more horizontal projection that equidistantly distributes (4).
2. Dnetal implant component as claimed in claim 1, it is characterized in that: described horizontal projection (4) quantity is four.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320289932 CN203244475U (en) | 2013-05-24 | 2013-05-24 | Femur implant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320289932 CN203244475U (en) | 2013-05-24 | 2013-05-24 | Femur implant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203244475U true CN203244475U (en) | 2013-10-23 |
Family
ID=49370946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320289932 Expired - Fee Related CN203244475U (en) | 2013-05-24 | 2013-05-24 | Femur implant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203244475U (en) |
-
2013
- 2013-05-24 CN CN 201320289932 patent/CN203244475U/en not_active Expired - Fee Related
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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: 20190524 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |