CN205612593U - Hip joint expander of biological fixation type - Google Patents
Hip joint expander of biological fixation type Download PDFInfo
- Publication number
- CN205612593U CN205612593U CN201620224412.8U CN201620224412U CN205612593U CN 205612593 U CN205612593 U CN 205612593U CN 201620224412 U CN201620224412 U CN 201620224412U CN 205612593 U CN205612593 U CN 205612593U
- Authority
- CN
- China
- Prior art keywords
- hip joint
- expander
- biological fixation
- fixation type
- dilator
- 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.)
- Active
Links
Landscapes
- Prostheses (AREA)
Abstract
The utility model belongs to the technical field of medical instrument, concretely relates to hip joint expander of biological fixation type, expander include the body, and the middle part of body is equipped with to be convenient for establish the through -hole in hip joint femoral stem middle part or distal end department with the body cover, and the material that hip joint handle body expander chooseed for use the human body can absorb the degradation is made. The utility model provides a hip joint femoral stem of biological fixation type be difficult for the complex problem with the pulp cavity shape, use the biodegradable expander simultaneously, strengthened false body initial stage stationary stable on the one hand, make the doctor have more chances exact anatomical structure again, after date when the false body initial stage of tiding over is fixed gets into the bone and grows into fixed period, and the emergence of the painful problem of femoral stem prosthesis stress shielding and thigh is avoided like this in expander alright slow degradation, has strengthened the stability of false body biological fixation. If rebuild the operation simultaneously, make things convenient for the doctor to take out the false body. The form can be dissected according to actual pulp cavity to the expander, places in false body distal end position department.
Description
Technical field
This utility model belongs to technical field of medical instruments, and the hip joint being specifically related to a kind of biological fixation type expands
Prop.
Background technology
Dilator in existing femoral stem is to use bone-cement type femoral stem to carry out the normal of artificial hip joint replacing
With accessory, it is therefore an objective to femoral stem to be fixed on the center of pulp cavity, make bone cement thickness uniformly and femur stress is equal
Even.
In hip replacement, biotype femoral stem and pulp cavity mates the stability for initial stage femoral stem to closing weight
Want, and directly influence the biological fixation quality of prosthese at a specified future date.Type femoral bone end prosthesis near-end and distal dimension at present
For fixing proportionate relationship, the prosthetic designs of the biggest model becomes to have the shank body proximally and distally size of large size,
In order to mate the sufferer physiologically with big model pulp cavity, or the prosthetic designs of ting model becomes the handle with trumpet
Body proximally and distally size, in order to mate the sufferer physiologically with ting model pulp cavity.And clinical practice situation
The most small size physiology pulp cavity near-end correspondence large size physiology pulp cavity far-end or large size physiology pulp cavity near-end correspondence are little
Number physiology pulp cavity far-end.Therefore existing standard prosthese is difficult to mate the Pulp chamber that various physiology is dissected, from
And have impact on the curative effect of joint replacement.
At present, metal assembly type distal femoral handle prosthese has been applied to clinic.Owing to Elastic Modulus for Metals is remote
Much larger than cortical bone elastic modelling quantity, the long-term bone of its far-end coordinates can cause the biggest stress shielding in host bone,
Thus produce a series of negative effect, such as near-end bone dissolving etc..
Utility model content
The purpose of this utility model is to provide the hip joint dilator of a kind of biological fixation type, and use can biological be dropped
The material solved, it is to avoid type femoral bone end prosthesis with pulp cavity unmatched problem, is beneficial to improve the prosthese initial stage fixing
Stability.
For achieving the above object, this utility model be the technical scheme is that the hip of a kind of biological fixation type
Joint dilator, including body, the inside of body is provided with to be easy to be set in the middle part of femoral hip stem body
Or the through hole of far-end, described hip joint dilator selects the material of human body absorbable and degradable to make.
Preferably, the outline of described body is consistent with femoral stem profile, and described body matches in pulp cavity
Rectangle, the side of body, the periphery being positioned at through hole are provided with hollow groove.
Preferably, the position of consistent with the prolonging direction of through hole on described body rib is provided with broken strip.
Preferably, the material of described hip joint dilator is that the absorbable metal material of human body or human body can absorb
Organic material.
After using technique scheme, this utility model has the positive effect that:
The material of the material selection human body absorbable and degradable of the hip joint dilator in this utility model, described expansion
Prop is located at middle part or the remote location of femoral hip stem, and this degradable dilator plays enhancing vacation in early days
Body fixing-stable effect.Once type femoral bone end prosthesis entrance biological fixation period, middle part or far-end fill dilator
Gradually degraded and absorbed, it is to avoid the problem of stress shielding, reduces the elastic modelling quantity of prosthese, strengthens prosthese raw
The stability that thing is fixing.
Accompanying drawing explanation
Fig. 1 is the axonometric chart in one orientation of hip joint dilator of biological fixation type of the present utility model；
Fig. 2 is the axonometric chart in another orientation of hip joint dilator of biological fixation type shown in Fig. 1.
Wherein: 1, body, 11, through hole, 12, groove, 13, broken strip.
Detailed description of the invention
With detailed description of the invention, this utility model is described in further detail below in conjunction with the accompanying drawings.
In this utility model, unless otherwise clearly defined and limited, term " install ", " being connected ", " even
Connect ", the term such as " fixing " should broadly understood, connect for example, it may be fixing, it is also possible to be detachable
Connect, or integral；Can be to be mechanically connected, it is also possible to be electrical connection；Can be to be joined directly together, it is possible to
To be indirectly connected to by intermediary, can be connection or the interaction of two elements of two element internals
Relation.For the ordinary skill in the art, can understand that above-mentioned term is at this as the case may be
Concrete meaning in utility model.
Femoral stem is typically fixed with human-body biological by near-end.The hip pass that none-cement of the present utility model is fixing
Middle part or the remote location of femoral stem be located at by joint dilator, and the initial stage makes in the middle part of type femoral bone end prosthesis or far-end is stable
In pulp cavity center, make position centering.
As shown in Figure 1-2, for the hip joint dilator of biological fixation type of the present utility model, including in flat-shaped side
The body 1 of shape, the outline of body 1 is consistent with femoral stem profile.The middle part of body 1 is provided with through hole 11,
Through hole 11 is easy to be set in body 1 middle part or the far-end of femoral hip stem.The side of body 1, position
Be provided with hollow groove 12 in the periphery of through hole 11, hollow groove 12 makes body 1 not be solid state, profit
In the degradation rate improving later stage dilator.Rib consistent with the prolonging direction of through hole 11 on body 1
Position is provided with broken strip 13, arranging also for the degradation rate improving later stage dilator, reduction of broken strip 13
The elastic modelling quantity of dilator.
The material selecting existing human body absorbable and degradable of the dilator in this utility model is made, this material
Material can be the absorbable metal material of human body, such as magnesium or magnesium alloy；Can also is that human body is absorbable organic
Material, such as polylactic acid etc..Dilator selects the material of human body absorbable and degradable to be for once proximal femurs handle
After prosthese and human-body biological are fixing, by the degraded of dilator, it is to avoid the problem of stress shielding, strengthen vacation
The stability of body biological fixation, thus avoid the negative effects such as bone dissolving, the recovery in more favourable affected part.
It will be apparent to those skilled in the art that can technical scheme as described above and design, make it
Its various corresponding changes and deformation, and all these changes and deformation all should belong to this practicality newly
Within the protection domain that type requires.
Claims (4)
1. the hip joint dilator of a biological fixation type, it is characterised in that: include body (1), body (1)
Inside be provided with and be easy to be set in the middle part of femoral hip stem by body (1) or the through hole (11) of far-end,
Described hip joint dilator selects the material of human body absorbable and degradable to make.
The hip joint dilator of biological fixation type the most according to claim 1, it is characterised in that: body
(1) outline is consistent with femoral stem profile, the side of body (1), is positioned at the periphery of through hole (11)
It is provided with hollow groove (12).
The hip joint dilator of biological fixation type the most according to claim 2, it is characterised in that: body
(1) position of the upper rib consistent with the prolonging direction of through hole (11) is provided with broken strip (13).
The hip joint dilator of biological fixation type the most according to claim 1, it is characterised in that: described
The material of femoral hip stem dilator is the absorbable metal material of human body or the absorbable organic material of human body
Material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620224412.8U CN205612593U (en) | 2016-03-22 | 2016-03-22 | Hip joint expander of biological fixation type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620224412.8U CN205612593U (en) | 2016-03-22 | 2016-03-22 | Hip joint expander of biological fixation type |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205612593U true CN205612593U (en) | 2016-10-05 |
Family
ID=57032405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620224412.8U Active CN205612593U (en) | 2016-03-22 | 2016-03-22 | Hip joint expander of biological fixation type |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205612593U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105640670A (en) * | 2016-03-22 | 2016-06-08 | 创生医疗器械（中国）有限公司 | Biological fixation-type hip joint dilator |
-
2016
- 2016-03-22 CN CN201620224412.8U patent/CN205612593U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105640670A (en) * | 2016-03-22 | 2016-06-08 | 创生医疗器械（中国）有限公司 | Biological fixation-type hip joint dilator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Liu et al. | Application of 3D-printed PEEK scapula prosthesis in the treatment of scapular benign fibrous histiocytoma: a case report | |
| CN206167123U (en) | Keep nodal section type that closes matched stack formula thighbone tumour knee joint prosthesis | |
| CN106137470A (en) | A kind of reservation articular surface type can prolonged type tibial neoplasms knee-joint prosthesis | |
| CN103598933B (en) | A kind of hip prosthesis | |
| CN204501109U (en) | A kind of concrete dynamic modulus mandibular prostheses | |
| McFarland et al. | Complications of antibiotic cement spacers used for shoulder infections | |
| Gluck | The Classic: Report on the positive results obtained by the modern surgical experiment regarding the suture and replacement of defects of superior tissue, as well as the utilization of re-absorbable and living tamponade in surgery | |
| CN205612593U (en) | Hip joint expander of biological fixation type | |
| CN105640670B (en) | The hip joint expander of biological fixation type | |
| CN109330748A (en) | A kind of ankle prosthesis shin bone sidepiece part | |
| CN107361881B (en) | Femur far-end prosthesis capable of increasing bone preservation quantity and adopting bone trabecular structure | |
| CN209316157U (en) | A kind of ankle prosthesis shin bone sidepiece part | |
| CN210541941U (en) | High-flexibility bionic total-finger joint replacement part | |
| CN204468346U (en) | A kind of hip revision femur inwall grommet | |
| CN205107980U (en) | With bionical joint replacement false body of displacing joint looks adaptation | |
| CN208404992U (en) | The distal femur prosthese using trabecular bone structure of bone reserve capacity can be increased | |
| CN203555861U (en) | Antibiotic bone cement knee joint movable spacer with medicine | |
| CN204909734U (en) | Hip joint femoral stem of anchor nail is born to area distributing type | |
| CN213030939U (en) | Humerus capitulum prosthesis | |
| CN205181459U (en) | Backbone vertebral plate fixing system that opens door | |
| CN211271413U (en) | Structure for increasing prosthesis stability after artificial hip replacement | |
| CN111938878A (en) | Tibia prosthesis | |
| CN208942489U (en) | A kind of integrated molding metal pelvis jointing repair prosthesis of 3D printing individuation | |
| CN210784856U (en) | Tissue engineering radius capitulum | |
| CN208974216U (en) | A kind of titanium alloy bone prosthese |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |