CN208770079U - Astragalus prosthese - Google Patents
Astragalus prosthese Download PDFInfo
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- CN208770079U CN208770079U CN201820030761.5U CN201820030761U CN208770079U CN 208770079 U CN208770079 U CN 208770079U CN 201820030761 U CN201820030761 U CN 201820030761U CN 208770079 U CN208770079 U CN 208770079U
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- China
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- metal material
- nonmetallic materials
- material part
- fixing glue
- caulking groove
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Abstract
The utility model relates to astragalus prostheses, including range bone prosthese ontology, the range bone prosthese ontology includes the nonmetallic materials part of top and the metal material part of lower section, the nonmetallic materials part can combine assembly with metal material part, the nonmetallic materials part includes trochoid face and articular facet of medial malleolus, the metal material part includes subtalar joint face, the nonmetallic materials part or metal material part include articulatio talonavicularis face, the metal material part is equipped with fixing glue screw way, and fixing glue screw way has 4-5.For porous trabecular bone structure or there is hydroxyapatite coating layer in subtalar joint face and/or articulatio talonavicularis face.The dismountable nonmetallic materials part of the utility model and metal material part, replacement when conveniently overhauling；The region closed on bone is using bone trabecula porous structure or has hydroxyapatite coating layer, can promote bone fusion；Male part A is filled with the gap away from calcaneum on the outside, increases stability.
Description
Technical field
The utility model relates to the field of medical instrument technology more particularly to astragalus prostheses.
Background technique
Astragalus is the maximum irregular bone of human body, can be divided into head, neck, body three parts.Astragalus shares 7 articular surfaces, nut bone
Articular surface, facies articularis anterior calcanei, facies articularis calcanea media, facies articularis calcanea posterior, articular facet of medial malleolus, articular facet of lateral malleolus, trochoid
Face is the hinge that body gravity reaches foot, has important biomechanical function.
Astragalus surface about 60%~70% is covered by articular cartilage, remaining is covered by periosteum, and astragalus itself is without independent
Blood supply, only by ligament and joint capsule blood supply.The primary bone tumour of astragalus accounts for about the 0.3% of whole body, and main histological type is bone
Giant-cell tumor, astragalus giant cell tumor of bone often involve range bone, strike off high recurrence rate.Astragalus excision can reduce recurrence rate, but can lose
Stay dysfunction.In addition to tumour, local wound and pyogenic infection can also cause astragalus seriously to damage, operative treatment mesh
Before be still that can equally leave dysfunction based on joint fusion.
Utility model content
The utility model is intended to provide astragalus prosthese, and compared to joint fusion, replaceable astragalus, astragalus prosthetic replacement is opposite
It is more preferable in the postoperative function of joint fusion；The astragalus prosthese includes range bone prosthese ontology, and range bone prosthese ontology is divided into
Lower two parts, two parts can combine assembly, replacement when conveniently overhauling.
In order to achieve the above objectives, the technical solution adopted in the utility model is as follows:
Astragalus prosthese, including range bone prosthese ontology, the range bone prosthese ontology include the nonmetallic materials portion of top
Divide the metal material part with lower section, the nonmetallic materials part can combine assembly with metal material part, described nonmetallic
Material part includes trochoid face and articular facet of medial malleolus, and the metal material part includes subtalar joint face, described nonmetallic
Material part or metal material part include articulatio talonavicularis face, and the metal material part is equipped with fixing glue screw way.
Further, there is caulking groove in the top surface of the metal material part, and the bottom of the nonmetallic materials part is inlaid in
In caulking groove.There is caulking groove in the top surface of the metal material part, and the bottom of the nonmetallic materials part is inlaid in caulking groove；Or
There are caulking groove in person, the bottom surface of nonmetallic materials part, are inlaid in caulking groove at the top of the metal material part.
It is further preferred that caulking groove side wall has opening up notch when caulking groove is arranged in metal material part；When embedding
Slot is arranged at nonmetallic materials part, and caulking groove side wall has downward opening notch.Wherein, the nonmetallic materials part and gold
Belong to material part and all refers to articular facet of lateral malleolus.
Further, the subtalar joint face and/or articulatio talonavicularis face are porous trabecular bone structure.
It is further preferred that there is hydroxyapatite coating layer in subtalar joint face and/or articulatio talonavicularis face.
Further, the position that the metal material part corresponds to veins of tarsal sinus outwardly protrudes to form male part A to fill up instep
Bone sinus and veins of tarsal sinus pipe.
Preferably, the material of the nonmetallic materials part is high molecular material or medical ceramic, the metal material portion
The material divided is that titanium alloy or nickel-base alloy or stainless steel or Ti-Ni alloy or cochrome or acid bronze alloy or tantalum close
Gold etc..Wherein, high molecular material can for high density polyethylene (HDPE) or polylactic acid or high-modulus aromatic polyamide or carbon fiber and
Its composite material etc..
Metal material part is further, is set on subtalar joint face there are four fixing glue screw way, four fixing glue screw ways are equal
Through the bottom surface of caulking groove.
Further, astragalus prosthese further includes the fixing glue being adapted to fixing glue screw way, and the head of a nail of fixing glue is equipped with outer
Screw thread has the internal screw thread being adapted to the head of a nail in fixing glue screw way.
Compared with prior art, the utility model has the following beneficial effects:
The dismountable nonmetallic materials part of the utility model and metal material part, replacement when conveniently overhauling；Face with bone
Close region is using bone trabecula porous structure or has hydroxyapatite coating layer, can promote bone fusion；Male part A is filled with away from calcaneum
Gap on the outside, increases stability.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of embodiment 1；
Fig. 2 is the structural schematic diagram of embodiment 1 when fixing glue is not shown；
Fig. 3 is the structural schematic diagram of metal material part in embodiment 1；
Fig. 4 is the structural schematic diagram of non-metal material part；
Fig. 5 is the structural schematic diagram of embodiment 2；
Fig. 6 is the structural schematic diagram of metal material part in embodiment 2；
Fig. 7 is the structural schematic diagram of embodiment 3 when fixing glue is not shown；
In figure: 1- nonmetallic materials part, 2- metal material part, 3- fixing glue, 11- extension, 21- caulking groove, 22- are lacked
Mouth, 23- fixing glue screw way, 24- male part A, 25- articulatio talonavicularis face, 26- stage portion, 27- outer edge.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing, to this reality
It is further elaborated with novel.
Embodiment 1
As shown in Figure 1, 2, astragalus prosthese disclosed in the present embodiment, including range bone prosthese ontology, range bone prosthese ontology
For anatomical structure, range bone prosthese ontology includes the nonmetallic materials part 1 of top and the metal material part 2 of lower section, non-gold
Assembly can be combined with metal material part 2 by belonging to material part 1, replacement when conveniently overhauling, and the corresponding shin bone in nonmetallic materials part 1 is remote
End.There is caulking groove 21 in the top surface of metal material part 2, and the bottom of nonmetallic materials part 1 is inlaid in caulking groove 21, nonmetallic materials
The bottom of part 1 and caulking groove 21 are interference fit, and 21 side wall of caulking groove has opening up notch 22, conveniently pried open by notch 22
Nonmetallic materials part 1.It is of course also possible to metal material part 2 is inlaid on nonmetallic materials part 1, in non-metallic material
There is caulking groove 21 in the bottom surface of material part 1, and the top of metal material part 2 is inlaid in caulking groove 21, and 21 side wall of caulking groove has opening down
Notch 22.
Wherein, the material of the nonmetallic materials part 1 is high molecular material or medical ceramic, the metal material part
2 material is titanium alloy or nickel-base alloy or stainless steel or Ti-Ni alloy or cochrome or acid bronze alloy or tantalum alloy
Deng.Wherein, high molecular material can for high density polyethylene (HDPE) or polylactic acid or high-modulus aromatic polyamide or carbon fiber and its
Composite material etc..
Metal material part
Nonmetallic materials part 1 includes trochoid face and articular facet of medial malleolus, and metal material part 2 includes subtalar joint face
With articulatio talonavicularis face 25, nonmetallic materials part 1 and metal material part 2 all refer to articular facet of lateral malleolus.Subtalar joint bread
Include facies articularis anterior calcanei, facies articularis calcanea media and facies articularis calcanea posterior.
As shown in figure 3, metal material part 2 is equipped with fixing glue screw way 23.Subtalar joint face is equipped in the present embodiment
Four fixing glue screw ways 23, this four 4 fixing glue screw ways 23 run through the bottom surface of caulking groove 21, for fixing astragalus and calcaneum.
As shown in figure 3, astragalus prosthese further includes the fixing glue 3 being adapted to fixing glue screw way 23, the head of a nail of fixing glue 3 is equipped with outer spiral shell
Line has the internal screw thread being adapted to the head of a nail in fixing glue screw way 23, in use, utilizing by fixing glue 3 in fixing glue screw way 23
The head of a nail and the internal screw thread of fixing glue screw way 23 lock fixing glue 3 and astragalus prosthese, and stability is high.Fixing glue 3 in the present embodiment
Select full thread lock screw.Fixing glue 3 can be with spraying hydroxyapatite coating.The distribution of fixing glue 3 and direction, such as Fig. 5 institute
Show, fixing glue 3 is inclined outwardly from the head of a nail to nail tail, and side position can be fan-shaped.
As shown in figure 3, there is a raised stage portion 26 upwards on the side of 2 upper embedded groove 21 of metal material part, away from boat
Articular surface 25 is located on the lateral surface of stage portion 26, and the outer edge 27 of 26 top surface of stage portion upwarps.
As shown in figure 4, the extension 11 being adapted to stage portion 26 is arranged at the top of nonmetallic materials part 1, as shown in Fig. 2,
When nonmetallic materials part 1 and metal material part 2 assemble together, extension 11 is located at 26 top of stage portion, stage portion
26 outer edges 27 upwarped wrap up the bottom of extension 11 wherein.
Metal material part 2 can 3D printing, can also be used other processes be made, subtalar joint face can in the present embodiment
Selective spray has hydroxyapatite or uses 3D printing porous structure, promotes Bone Ingrowth.Wherein, articulatio talonavicularis face 25 is polishing
Face.On the basis of anatomical structure, the position of the corresponding veins of tarsal sinus of metal material part 2 outwardly protrudes to form male part A24 to fill out
Full veins of tarsal sinus and veins of tarsal sinus pipe, male part A24 are filled with the gap away from calcaneum on the outside, increase stability.Male part A24
For porous trabecular bone structure and/or there is hydroxyapatite coating layer.
Range bone prosthese ontology includes dismountable nonmetallic materials part 1 and metal material part 2, side in the present embodiment
Replacement when just overhauling；The lower surface of range bone prosthese ontology, the region closed on calcaneum can promote using bone trabecula porous structure
Bone is grown into；Male part A24 is filled with the gap away from calcaneum on the outside, increases stability.
Embodiment 2
The present embodiment the difference from embodiment 1 is that: as shown in Figure 5,6, articulatio talonavicularis face 25 also be porous bone trabecula knot
There are hydroxyapatite coating layer, fusion and stable articulatio talonavicularis in structure and/or articulatio talonavicularis face 25.Also there is fixation on articulatio talonavicularis face 25
Screw way 23 is followed closely, when use loads onto fixing glue 3 in the fixing glue screw way 23, for fixing astragalus and nut bone.I.e. if the joint
Face has done porous trabecular bone structure or has had hydroxyapatite coating layer, then the articular surface can beat fixing glue 3.
Embodiment 3
The present embodiment the difference from embodiment 1 is that: as shown in fig. 7, articulatio talonavicularis face 25 belongs to non-gold in the present embodiment
Belong to material part 1.
The dismountable nonmetallic materials part of the utility model and metal material part, replacement when conveniently overhauling；Face with bone
Close region is using bone trabecula porous structure or has hydroxyapatite coating layer, can promote bone fusion；Male part A is filled with away from calcaneum
Gap on the outside, increases stability.
Certainly, the utility model can also have other numerous embodiments, without departing substantially from the spirit of the present invention and its essence
In the case where, those skilled in the art can make various corresponding changes and modifications, but these according to the utility model
Corresponding changes and modifications all should belong to the protection scope of the utility model the attached claims.
Claims (10)
1. astragalus prosthese, it is characterised in that: including range bone prosthese ontology, the range bone prosthese ontology includes the non-gold of top
Belong to the metal material part (2) of material part (1) and lower section, the nonmetallic materials part (1) and metal material part (2) can
Combination assembly, the nonmetallic materials part (1) includes trochoid face and articular facet of medial malleolus, the metal material part (2)
Including subtalar joint face, the nonmetallic materials part (1) or metal material part (2) include articulatio talonavicularis face (25), described
Metal material part (2) is equipped with fixing glue screw way (23).
2. astragalus prosthese according to claim 1, it is characterised in that: there is caulking groove in the top surface of the metal material part (2)
(21), the bottom of the nonmetallic materials part (1) is inlaid in caulking groove (21)；Alternatively, the bottom surface of nonmetallic materials part (1)
Have caulking groove (21), is inlaid in caulking groove (21) at the top of the metal material part (2).
3. astragalus prosthese according to claim 1, it is characterised in that: when caulking groove (21) are arranged in metal material part (2)
When, caulking groove (21) side wall has opening up notch (22)；When the caulking groove at nonmetallic materials part (1) is arranged in caulking groove (21)
(21) side wall has downward opening notch (22).
4. astragalus prosthese according to claim 1, it is characterised in that: the nonmetallic materials part (1) and metal material
Partially (2) all refer to articular facet of lateral malleolus.
5. astragalus prosthese according to claim 1, it is characterised in that: the subtalar joint face and/or articulatio talonavicularis face
It (25) is trabecular bone structure.
6. astragalus prosthese according to claim 1 or 5, it is characterised in that: subtalar joint face and/or articulatio talonavicularis face (25)
There is hydroxyapatite coating layer.
7. astragalus prosthese according to claim 1, it is characterised in that: the corresponding veins of tarsal sinus of the metal material part (2)
Position outwardly protrudes to form male part A (24) to fill up veins of tarsal sinus and veins of tarsal sinus pipe.
8. astragalus prosthese according to claim 1, it is characterised in that: the material of the nonmetallic materials part (1) is height
Molecular material or medical ceramic, the material of the metal material part (2) are titanium alloy or nickel-base alloy or stainless steel or titanium
Nickel alloy or cochrome or acid bronze alloy or tantalum alloy.
9. astragalus prosthese according to claim 1, it is characterised in that: fixing glue screw way there are four being set on subtalar joint face
(23), four fixing glue screw ways (23) run through the bottom surface of caulking groove (21).
10. according to claim 1 or astragalus prosthese described in 9, it is characterised in that: further include being adapted to fixing glue screw way (23)
The head of a nail of fixing glue (3), fixing glue (3) is equipped with external screw thread, and fixing glue screw way has the internal screw thread being adapted to the head of a nail on (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820030761.5U CN208770079U (en) | 2018-01-08 | 2018-01-08 | Astragalus prosthese |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820030761.5U CN208770079U (en) | 2018-01-08 | 2018-01-08 | Astragalus prosthese |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208770079U true CN208770079U (en) | 2019-04-23 |
Family
ID=66143067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820030761.5U Active CN208770079U (en) | 2018-01-08 | 2018-01-08 | Astragalus prosthese |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208770079U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108210130A (en) * | 2018-01-08 | 2018-06-29 | 四川大学华西医院 | Astragalus prosthese |
-
2018
- 2018-01-08 CN CN201820030761.5U patent/CN208770079U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108210130A (en) * | 2018-01-08 | 2018-06-29 | 四川大学华西医院 | Astragalus prosthese |
| CN108210130B (en) * | 2018-01-08 | 2023-09-08 | 四川大学华西医院 | Talus prosthesis |
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