CN206621458U - A kind of acetabular cup prosthesis of porous surface - Google Patents
A kind of acetabular cup prosthesis of porous surface Download PDFInfo
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- CN206621458U CN206621458U CN201621190606.7U CN201621190606U CN206621458U CN 206621458 U CN206621458 U CN 206621458U CN 201621190606 U CN201621190606 U CN 201621190606U CN 206621458 U CN206621458 U CN 206621458U
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- acetabular cup
- cup
- granatohedron
- porous surface
- bone structure
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Abstract
The utility model discloses a kind of acetabular cup prosthesis of porous surface, belong to technical field of medical instruments, wherein, the cup is hemisphere shell sape, and the spherical shell face of the cup is provided with the penetrating positioning tubing string in two both ends；The component units of the trabecular bone structure are granatohedron, and the summit of the granatohedron is provided with pillar, connected between each granatohedron by pillar.Acetabular cup surface distributed of the present utility model the trabecular bone structure similar to the Grafting Cancellous Bone Bolt trabecularism of human body, the frictional force of acetabular cup can be increased, body bone tissue is set quickly to grow among mortar cup, reduce the generation of prosthetic loosening, and the utility model is one-shot forming, production link, process are simple, and production cost is greatly reduced, and the acetabular cup of production has excellent mechanical property.
Description
Technical field
A kind of acetabular cup prosthesis of porous surface is the utility model is related to, belongs to instrument and equipment technical field.
Background technology
3D printing technique is the emerging technology gradually to grow up from the eighties in last century, be acknowledged as at present " the
One of important symbol of the industrial revolution three times ".Selective laser fusion technology (SLM) is a sophisticated skill in 3D printing technique
Art, to design three-dimensional drawing as data source, metal dust is merged from level to level by fibre laser, not by traditional processing
Technique limits, and without any mould, can be rapidly completed arbitrarily complicated moulding.It is now widely used for Aero-Space, automobile mould
The all trades and professions such as tool and medicine equipment.
Titanium alloy has been widely used in aviation due to the features such as its specific strength is high, and corrosion resistance is strong, and high-temperature behavior is excellent
Each field such as space flight, chemical industry, military affairs；Because titanium alloy has good biocompatibility, titanium alloy is caused also to be widely applied
In medical instruments field, the hard tissue substitutings such as joint prosthesis, bone wound product, implanting body of artificial tooth are turned at present or have repaired doctor
Treat the preferred material of device product.
Hip joint is the joint for connecting human thigh's bone and pelvis hipbone, is that the mankind are sitting or played a significant role immediately
Joint, when hip joint is impaired due to factors such as the disease reason of tuberculosis etc or wounds, in order that it is fully recovered, pass through artificial
Joint replacement surgery removal of lesions, pain is eliminated, recover movable and original function in joint.Artificial hip joint replacing technology is certainly
Extensive clinical practice has been obtained since last century since the sixties.But traditional handicraft manufacture acetabular cup be by casting mortar cup with
Face coat two parts form, and because tissue is often not easy to grow into face coat, therefore easily cause prosthetic loosening, so as to
Carry out second operation.
Therefore, the utility model provides a kind of acetabular cup prosthesis of porous surface, and that improves body bone tissue grows into ability,
It is extremely urgent.
Utility model content
For overcome the deficiencies in the prior art, the utility model provides a kind of acetabular cup prosthesis of porous surface.
To achieve the above object, technological means is used by the utility model：
A kind of acetabular cup prosthesis of porous surface, including cup and the trabecular bone structure two for being partially submerged into cup outer surface
Point, wherein：
The cup is hemisphere shell sape, and the spherical shell face of the cup is provided with the penetrating positioning tubing string in two both ends；
The component units of the trabecular bone structure are granatohedron, and the summit of the granatohedron is provided with branch
Post, connected by pillar between each granatohedron.
Preferably, each granatohedron is provided with eight pillars, wherein each face is provided with two pillars, this two
Pillar is located on a diagonal of same lozenge, and a pillar is shared per two adjacent lozenges.
Preferably, the cup and trabecular bone structure are TC4 titanium alloy materials.
Preferably, the positioning tubing string thickness is 1-2mm.
Preferably, the positioning tubing string is cylinder.
Preferably, the depth of the trabecular bone structure insertion cup is 0.1-0.3mm, and the trabecular bone structure is in hemispherical Shell
The thickness of shape outer surface part is 1-3mm.
Preferably, the voidage of the trabecular bone structure is 50-75%.
Preferably, the length of side of the granatohedron and the length of side of pillar are equal, are 0.52-1.2mm.
Preferably, each edge length of the granatohedron and a diameter of 0.13-0.3mm of pillar.
Relative to prior art, the beneficial effects of the utility model are：
1) acetabular cup surface distributed of the present utility model complicated trabecular bone structure, the spongiosa of the trabecular bone structure and human body
Bone trabecular bone structure is similar, can increase the frictional force of acetabular cup, body bone tissue is quickly grown among mortar cup, reduces
The generation of prosthetic loosening, the Acetabular reconstruction cup for more meeting individual need can also be provided for the patient of acetabular bone side severe bone defect,
Solve clinical complicated rework issues.
2) acetabular cup of the present utility model has excellent and uniform mechanical property.
3) the utility model is one-shot forming, and production link, process are simple, and production cost is greatly reduced.
Brief description of the drawings
Fig. 1 is the surface trabecular bone structure cell schematics of the acetabular cup prosthesis of porous surface of the present utility model；
Fig. 2 is the acetabular cup prosthesis schematic diagram of the porous surface of utility model；
Fig. 3 is the utility model along the profile at A-A；
Description of reference numerals：Cup 1, trabecular bone structure 2, positioning tubing string 3, pillar 4.
Embodiment
Below in conjunction with the accompanying drawings and the utility model is described in further detail in embodiment.Fig. 1 is that surface of the present utility model is more
The surface trabecular bone structure cell schematics of the acetabular cup prosthesis in hole；Fig. 2 is the acetabular cup prosthesis of the porous surface of utility model
Schematic diagram；Fig. 3 is the utility model along the profile at A-A：
A kind of acetabular cup prosthesis of porous surface, including cup 1 and the trabecular bone structure 2 for being partially submerged into the outer surface of cup 1
Two parts, wherein：
The cup 1 is hemisphere shell sape, and the spherical shell face of the cup 1 is provided with the penetrating positioning tubing string 3 in two both ends；
The component units of the trabecular bone structure 2 are granatohedron, and the summit of the granatohedron is provided with
Pillar 4, connected by pillar 4 between each granatohedron.
Each granatohedron is provided with eight pillars 4, wherein each face is provided with two pillars 4, two pillars 4
On a diagonal of lozenge, and a pillar 4 is shared per two adjacent lozenges.
The cup 1 and trabecular bone structure 2 are TC4 titanium alloy materials.
The positioning thickness of tubing string 3 is 1-2mm.
The positioning tubing string 3 is cylinder.
The depth that the trabecular bone structure 2 is embedded in cup 1 is 0.1-0.3mm, and the trabecular bone structure 2 is outside hemisphere shell sape
The thickness of surface portion is 1-3mm.
The voidage of the trabecular bone structure 2 is 50-75%.
The length of side of the granatohedron is equal with the length of side of pillar 4, is 0.52-1.2mm.
The each edge length of the granatohedron and a diameter of 0.13-0.3mm of pillar 4.
Embodiment content of the present utility model is disclosed above, but the present embodiment is not limited to the utility model implementation
Scope, the simple equivalent changes and modifications made according to claims of the present utility model and description, still fall within
In the range of technical solutions of the utility model.
Claims (9)
1. a kind of acetabular cup prosthesis of porous surface, including cup and the trabecular bone structure two for being partially submerged into cup outer surface
Point, it is characterised in that：
The cup is hemisphere shell sape, and the spherical shell face of the cup is provided with the penetrating positioning tubing string in two both ends；
The component units of the trabecular bone structure are granatohedron, and the summit of the granatohedron is provided with pillar,
Connected between each granatohedron by pillar.
2. the acetabular cup prosthesis of porous surface as claimed in claim 1, it is characterised in that each granatohedron is provided with
Eight pillars, wherein each face is provided with two pillars, two pillars are located on a diagonal of same lozenge, and often
Two adjacent lozenges share a pillar.
3. the acetabular cup prosthesis of porous surface as claimed in claim 1, it is characterised in that the cup and trabecular bone structure are equal
For TC4 titanium alloy materials.
4. the acetabular cup prosthesis of porous surface as claimed in claim 1, it is characterised in that the positioning tubing string thickness is 1-
2mm。
5. the acetabular cup prosthesis of porous surface as claimed in claim 1, it is characterised in that the positioning tubing string is cylinder.
6. the acetabular cup prosthesis of porous surface as claimed in claim 1, it is characterised in that the trabecular bone structure is embedded in cup
Depth be 0.1-0.3mm, the trabecular bone structure is 1-3mm in the thickness of hemisphere shell sape outer surface part.
7. the acetabular cup prosthesis of porous surface as claimed in claim 1, it is characterised in that the voidage of the trabecular bone structure
For 50-75%.
8. the acetabular cup prosthesis of porous surface as claimed in claim 1, it is characterised in that the length of side of the granatohedron
It is equal with the length of side of pillar, it is 0.52-1.2mm.
9. the acetabular cup prosthesis of porous surface as claimed in claim 1, it is characterised in that every of the granatohedron
A diameter of 0.13-0.3mm of the length of side and pillar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621190606.7U CN206621458U (en) | 2016-10-28 | 2016-10-28 | A kind of acetabular cup prosthesis of porous surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621190606.7U CN206621458U (en) | 2016-10-28 | 2016-10-28 | A kind of acetabular cup prosthesis of porous surface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206621458U true CN206621458U (en) | 2017-11-10 |
Family
ID=60212662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621190606.7U Active CN206621458U (en) | 2016-10-28 | 2016-10-28 | A kind of acetabular cup prosthesis of porous surface |
Country Status (1)
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108524061A (en) * | 2018-05-11 | 2018-09-14 | 中山大学附属第医院 | Combined type semi-pelvic prosthesis |
| CN109172051A (en) * | 2018-10-16 | 2019-01-11 | 北京航空航天大学 | Novel energy-absorbing damping acetabular cup |
| CN112743088A (en) * | 2020-12-28 | 2021-05-04 | 北京航星机器制造有限公司 | Rhombic dodecahedron titanium alloy lattice structure, interlayer structure and manufacturing method |
-
2016
- 2016-10-28 CN CN201621190606.7U patent/CN206621458U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108524061A (en) * | 2018-05-11 | 2018-09-14 | 中山大学附属第医院 | Combined type semi-pelvic prosthesis |
| CN108524061B (en) * | 2018-05-11 | 2020-08-11 | 中山大学附属第一医院 | Combined type semi-pelvic prosthesis |
| CN109172051A (en) * | 2018-10-16 | 2019-01-11 | 北京航空航天大学 | Novel energy-absorbing damping acetabular cup |
| CN112743088A (en) * | 2020-12-28 | 2021-05-04 | 北京航星机器制造有限公司 | Rhombic dodecahedron titanium alloy lattice structure, interlayer structure and manufacturing method |
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