CN209595965U - Bias acetabular bone mortar cup prosthesis winged - Google Patents
Bias acetabular bone mortar cup prosthesis winged Download PDFInfo
- Publication number
- CN209595965U CN209595965U CN201821201269.6U CN201821201269U CN209595965U CN 209595965 U CN209595965 U CN 209595965U CN 201821201269 U CN201821201269 U CN 201821201269U CN 209595965 U CN209595965 U CN 209595965U
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- CN
- China
- Prior art keywords
- mortar cup
- cup
- interior
- mortar
- eccentric
- 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
Links
- 239000004570 mortar (masonry) Substances 0.000 title claims abstract description 128
- 210000000988 bone and bone Anatomy 0.000 title claims abstract description 63
- 230000007246 mechanism Effects 0.000 claims abstract description 21
- 210000003195 fascia Anatomy 0.000 claims abstract description 3
- 239000011324 bead Substances 0.000 claims description 8
- 230000014759 maintenance of location Effects 0.000 claims description 8
- 229920000573 polyethylene Polymers 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 2
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 239000010936 titanium Substances 0.000 claims description 2
- 229910052719 titanium Inorganic materials 0.000 claims description 2
- 239000004698 Polyethylene Substances 0.000 claims 2
- -1 polyethylene Polymers 0.000 claims 2
- 229920002521 macromolecule Polymers 0.000 claims 1
- 230000007547 defect Effects 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 5
- 238000010521 absorption reaction Methods 0.000 abstract description 4
- 210000004394 hip joint Anatomy 0.000 abstract description 3
- 101100327917 Caenorhabditis elegans chup-1 gene Proteins 0.000 description 9
- 230000008901 benefit Effects 0.000 description 4
- 238000001356 surgical procedure Methods 0.000 description 4
- 238000003672 processing method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000002224 dissection Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 210000001624 hip Anatomy 0.000 description 1
- 238000011540 hip replacement Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 210000003141 lower extremity Anatomy 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Landscapes
- Prostheses (AREA)
Abstract
The utility model relates to hip joint prosthesis technical fields, and in particular to a kind of eccentric acetabular bone mortar cup prosthesis winged, outer mortar cup, the outer mortar cup have exterior semi-spherical surface, and there are three the wings for the exterior semi-spherical surface tool of mortar cup；Interior mortar cup, the interior mortar cup have hemispherical cavity, and the centre of sphere of the hemispherical cavity and the centre of sphere of exterior semi-spherical surface mutually stagger.It is evenly distributed with multiple position-limit mechanisms at the inner wall edge of the outer mortar cup, is evenly distributed with multiple positioning mechanisms at the fascia edge of the interior mortar cup.The utility model avoids acetabular bone defect selection cushion block, the system method such as bone grafting, the problem of avoiding contact interface between cushion block and mortar cup, solves the problems, such as bone grafting absorption, it creates host bone and mortar cup surface completely attaches to, it ensure that prosthese and host bone contact area and Bone Ingrowth area, and largely increase the contact area of mortar cup and host bone by three wings and ensure that the initial stability of mortar cup.
Description
Technical field
The utility model relates to hip joint prosthesis technical field, more particularly to a kind of eccentric acetabular bone mortar cup winged are false
Body.
Background technique
Hip replacement surgery is initial successfully one of surgical operation.The placement angle of acetabular bone mortar cup is to influence art in art
One of clinical function and the deciding factor of long-time stability afterwards.The unified opinion of academic circles at present is that acetabular bone mortar cup angle is answered
It is placed in safety zone, i.e. 45 ± 10 ° of angle of splay, 15 ± 10 ° of top rake.It, will if acetabular bone mortar cup angle exceeds safety zone
Significantly affect the function and long-time stability of artificial hip joint.
The ununified processing method of the processing method of bone defect in hip revision operation at present, generally comprises and suppresses plant
Bone, self or allosome femoral head bone grafting, cushion block, huge mortar cup, reinforcement cup etc., these processing methods all have respective excellent scarce
Point, impaction bone grafting and self or allosome femoral head bone grafting may bone grafting absorption, initial stability is poor, and cushion block is contacted with mortar cup
The fixation at interface is also an insoluble disadvantage, and the interface between reinforcement cup and host bone is unable to Bone Ingrowth and also will affect mortar
The long term life of cup, the use of huge mortar cup can make the choosing of acetabular bone turn center to move up, lead to the Length discrepancy of the arm of force and lower limb.Cause
This, there is an urgent need for a kind of novel technical solutions in the prior art to solve the problems, such as this.
Utility model content
It is solved together in order to solve the above technical problems, the purpose of the utility model is to provide one kind by eccentric structure winged
The problem of rotation center moves up in heart mortar cup use process, to reach the stress that not will increase acetabular bone；Meanwhile eccentric structure can make
After bone defect position remaining bone bed is polished by mortar cup burr, host bone is directly contacted with porous mortar cup, provides good bone
Grow into the eccentric acetabular bone mortar cup prosthesis winged with initial stability.
The eccentric acetabular bone mortar cup prosthesis winged of the utility model, comprising:
Outer mortar cup, the outer mortar cup have an exterior semi-spherical surface, and the exterior semi-spherical surface of outer mortar cup has there are three the wing, and three
A wing extends to surrounding at the top of the exterior semi-spherical surface, and the angle between three wings is 30 °, increases connecing for outer mortar cup and host bone
Contacting surface product and initial stability；
Interior mortar cup, the interior mortar cup have a hemispherical cavity, the centre of sphere of the hemispherical cavity and exterior semi-spherical surface
The centre of sphere mutually staggers.
Further, be evenly distributed with multiple position-limit mechanisms at the inner wall edge of the outer mortar cup, the interior mortar cup it is outer
Wall edge is evenly distributed with multiple positioning mechanisms, outer mortar cup and interior mortar cup and is connected by multiple position-limit mechanisms and positioning mechanism cooperation
It connects.
Further, described outer mortar cup one end is provided with multiple fixation holes away from the interior farther away edge of mortar cup.
Further, the position-limit mechanism is retention bead, and the quantity of retention bead is 6-8.
Further, the positioning mechanism is positioning groove, and the quantity of positioning groove is 12-16.
Preferably, the interior mortar cup with a thickness of 3.8mm-15.8mm.
Preferably, the diameter of the outer mortar cup is 56mm, 58mm, 60mm, 62mm or 64mm, and the diameter of interior mortar cup is
40mm, 42mm, 44mm, 46mm or 48mm.
Further, there is convex edge, the convex edge and outer mortar cup outer wall junction are provided with ring on the outside of the cup top of the outer mortar cup
Connected in star.
Preferably, the outer mortar cup is made of metal, and the outer surface of outer mortar cup has micropore titanium silk coating；The interior mortar cup
It is made of high molecular polythene.
According to the above aspect of the present invention, the utility model at least has the following advantages:
1, in surgical procedure, only outer mortar cup and interior mortar cup need to be passed through to the retention bead matched and positioning groove installation is in
Eccentric structure, and the direction of outer cup can be adjusted according to the location-appropriate of patient's bone defect, and preferably rebuild dissection rotation
Turn center.
2, acetabular bone defect selection cushion block is avoided, the system method such as bone grafting avoids contact interface between cushion block and mortar cup
The problem of, it solves the problems, such as bone grafting absorption, creates host bone and mortar cup surface completely attaches to, ensure that prosthese and host bone
Contact area and Bone Ingrowth area, three wings enhance the initial stability of mortar cup.To remaining common huge mortar cup simultaneously
Advantage avoids the shortcomings that rotation center moves up.
3, the contact area of outer mortar cup and host bone can be made by adding the wing, so that the Bone Ingrowth of major chance is provided, meanwhile, it should
The fixed form that the wing is combined with fixing screws can increase interior mortar cup initial stability, increase anti-rotational ability, make interior mortar cup
Fine motion very little between host bone, promotes to grow into, to increase the service life of prosthese.
The above description is merely an outline of the technical solution of the present invention, in order to better understand the skill of the utility model
Art means, and can be implemented in accordance with the contents of the specification, below on the preferred embodiment of the present invention and the accompanying drawings in detail
It describes in detail bright as after.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of eccentric acetabular bone mortar cup prosthesis winged described in the utility model；
Fig. 2 is the side view of Fig. 1；
Fig. 3 is the top view of Fig. 1；
Fig. 4 is the locking mechanism schematic diagram of outer mortar cup and interior mortar cup.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Embodiment is not intended to limit the scope of the present invention for illustrating the utility model.
Referring to Fig. 1-4, one kind of one preferred embodiment of the utility model eccentric acetabular bone mortar cup prosthesis winged, comprising:
Outer mortar cup 1, the outer mortar cup have exterior semi-spherical surface, and the exterior semi-spherical surface of outer mortar cup has there are three the wing 8,
Three wings 8 extend at the top of exterior semi-spherical surface to surrounding, and the angle between three wings 8 is 30 °, increase outer mortar cup and host bone
Contact area and initial stability；
Interior mortar cup 2, the interior mortar cup have a hemispherical cavity, the centre of sphere of the hemispherical cavity and exterior semi-spherical surface
The centre of sphere mutually staggers.
Multiple position-limit mechanisms are evenly distributed at the inner wall edge of the outer mortar cup 1, at the fascia edge of the interior mortar cup 2
Multiple positioning mechanisms are evenly distributed with, outer mortar cup 1 is cooperatively connected with interior mortar cup 2 by multiple position-limit mechanisms and positioning mechanism.
The centre of sphere of outer mortar cup 1 and the centre of sphere of interior mortar cup 2 mutually stagger, bone defect or inclusiveness bone defect above mortar cup
When needing with huge cup, constituting eccentric mortar cup using the centre of sphere and the interior mortar cup 2 of outer mortar cup 1 will not make hip joint center obvious
It moves up and increases mortar cup stress；And the advantages of remaining huge mortar cup.
Described outer 1 one end of mortar cup is provided with multiple fixation holes 3 away from the farther away edge of interior mortar cup 2.It can root in surgical procedure
It can take the circumstances into consideration to be fixed using fixing screws across fixation hole according to needs.
The position-limit mechanism is retention bead 5, and the quantity of retention bead 5 is 6-8.The positioning mechanism is positioning groove
6, the quantity of positioning groove 6 is 12-16.Preferably the quantity of retention bead 5 is 7, and the quantity of positioning groove 6 is 14,
It is conveniently adjusted outer mortar cup 1 and 2 glasss of interior mortar cooperations, adjusts setting angle.
The interior mortar cup 2 with a thickness of 3.8mm-15.8mm.
Preferably, the diameter of the outer mortar cup 1 is 56mm, 58mm, 60mm, 62mm or 64mm, and the diameter of interior mortar cup 2 is
40mm, 42mm, 44mm, 46mm or 48mm.
There is convex edge 7, the convex edge 7 and outer 1 outer wall junction of mortar cup are provided with annular groove on the outside of the cup top of the outer mortar cup 1
4。
The outer mortar cup 1 is made of metal；The interior mortar cup 2 is made of high molecular polythene.In surgical procedure, only need by
Outer mortar cup and interior mortar cup pass through the retention bead matched and positioning groove installation in eccentric structure, and can be according to patient
The direction of the location-appropriate adjustment outer cup of bone defect, and preferably rebuild dissection rotation center.The utility model avoids acetabular bone
Bone defect selects cushion block, and bone grafting etc. is united method, the problem of avoiding contact interface between cushion block and mortar cup, solves bone grafting absorption
The problem of, it creates host bone and mortar cup surface completely attaches to, ensure that prosthese and host bone contact area and Bone Ingrowth area.
The advantages of to common huge mortar cup is remained simultaneously, avoid the shortcomings that rotation center moves up.
When specifically used, the centre of sphere of outer mortar cup is big according to outer mortar cup size and interior mortar cup at a distance from the centre of sphere of interior mortar cup
Small variation and change, therefore be adapted dynamically hip joint center.
The above is only the preferred embodiment of the utility model, is not intended to limit the utility model, it is noted that
For those skilled in the art, without deviating from the technical principle of the utility model, it can also do
Several improvements and modifications out, these improvements and modifications also should be regarded as the protection scope of the utility model.
Claims (10)
1. a kind of eccentric acetabular bone mortar cup prosthesis winged characterized by comprising
Outer mortar cup, the outer mortar cup have exterior semi-spherical surface；The exterior semi-spherical surface of outer mortar cup is with there are three the wing, three wings
Extend at the top of from exterior semi-spherical surface to surrounding, the angle between three wings is 30 °；
Interior mortar cup, the interior mortar cup have hemispherical cavity, the centre of sphere of the hemispherical cavity and the centre of sphere of exterior semi-spherical surface
It mutually staggers.
2. eccentric acetabular bone mortar cup prosthesis winged according to claim 1, it is characterised in that: the inner wall edge of the outer mortar cup
Place is evenly distributed with multiple position-limit mechanisms, and multiple positioning mechanisms, outer mortar cup are evenly distributed at the fascia edge of the interior mortar cup
It is cooperatively connected with interior mortar cup by multiple position-limit mechanisms and positioning mechanism.
3. eccentric acetabular bone mortar cup prosthesis winged according to claim 2, it is characterised in that: described outer mortar cup one end is away from interior mortar
The farther away edge of cup is provided with multiple fixation holes.
4. eccentric acetabular bone mortar cup prosthesis winged according to claim 2, it is characterised in that: the position-limit mechanism is limit convex
It rises, the quantity of retention bead is 6-8.
5. eccentric acetabular bone mortar cup prosthesis winged according to claim 2, it is characterised in that: the positioning mechanism is that positioning is recessed
Slot, the quantity of positioning groove are 12-16.
6. eccentric acetabular bone mortar cup prosthesis winged according to claim 4 or 5, it is characterised in that: the thickness of the interior mortar cup
For 3.8mm-15.8mm.
7. eccentric acetabular bone mortar cup prosthesis winged according to claim 6, it is characterised in that: the diameter of the outer mortar cup is
56mm, 58mm, 60mm, 62mm or 64mm；The diameter of interior mortar cup is 40mm, 42mm, 44mm, 46mm or 48mm.
8. eccentric acetabular bone mortar cup prosthesis winged according to claim 7, it is characterised in that: on the outside of the cup top of the outer mortar cup
With convex edge, the convex edge and outer mortar cup outer wall junction are provided with annular groove.
9. eccentric acetabular bone mortar cup prosthesis winged according to claim 8, it is characterised in that: the outer mortar cup is by made of metal
At the outer surface of outer mortar cup has micropore titanium silk coating；The interior mortar cup is made of polyethylene.
10. eccentric acetabular bone mortar cup prosthesis winged according to claim 9, it is characterised in that: the interior mortar cup is by macromolecule
Polyethylene is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821201269.6U CN209595965U (en) | 2018-07-26 | 2018-07-26 | Bias acetabular bone mortar cup prosthesis winged |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821201269.6U CN209595965U (en) | 2018-07-26 | 2018-07-26 | Bias acetabular bone mortar cup prosthesis winged |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209595965U true CN209595965U (en) | 2019-11-08 |
Family
ID=68393323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821201269.6U Expired - Fee Related CN209595965U (en) | 2018-07-26 | 2018-07-26 | Bias acetabular bone mortar cup prosthesis winged |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209595965U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108969151A (en) * | 2018-07-26 | 2018-12-11 | 肖建林 | Bias acetabular bone mortar cup prosthesis winged |
-
2018
- 2018-07-26 CN CN201821201269.6U patent/CN209595965U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108969151A (en) * | 2018-07-26 | 2018-12-11 | 肖建林 | Bias acetabular bone mortar cup prosthesis winged |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191108 |