CN108969151A - Bias acetabular bone mortar cup prosthesis winged - Google Patents
Bias acetabular bone mortar cup prosthesis winged Download PDFInfo
- Publication number
- CN108969151A CN108969151A CN201810840210.XA CN201810840210A CN108969151A CN 108969151 A CN108969151 A CN 108969151A CN 201810840210 A CN201810840210 A CN 201810840210A CN 108969151 A CN108969151 A CN 108969151A
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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.)
- Pending
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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
- A61F2/34—Acetabular cups
-
- 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
- A61F2/34—Acetabular cups
- A61F2002/3412—Acetabular cups with pins or protrusions, e.g. non-sharp pins or protrusions projecting from a shell surface
- A61F2002/342—Acetabular cups with pins or protrusions, e.g. non-sharp pins or protrusions projecting from a shell surface the outer shell having circumferential protrusions parallel to the equatorial plane, e.g. circumferential fins or wings
-
- 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
- A61F2/34—Acetabular cups
- A61F2002/344—Acetabular cups the inner shell having an inner hip femoral head-receiving cavity offset from its centre line
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 present invention 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 invention avoids acetabular bone defects to select 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 present invention relates to hip joint prosthesis technical fields, more particularly to a kind of eccentric acetabular bone mortar cup prosthesis winged.
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.
Summary of the invention
Solves concentric mortar by eccentric structure winged in order to solve the above technical problems, the object of the present invention is to provide one kind
The problem of rotation center moves up in cup use process, to reach the stress that not will increase acetabular bone；Meanwhile eccentric structure can be such that bone lacks
Position remaining bone bed is damaged by after the polishing of mortar cup burr, host bone is directly contacted with porous mortar cup, provides good Bone Ingrowth
With the eccentric acetabular bone mortar cup prosthesis winged of initial stability.
Eccentric acetabular bone mortar cup prosthesis winged of the invention, 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,Outer mortar cupOuter surface 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 present invention has at least 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 only an overview of the technical scheme of the present invention, in order to better understand the technical means of the present invention,
And can be implemented in accordance with the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention and the accompanying drawings.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of eccentric acetabular bone mortar cup prosthesis winged of the present invention；
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 embodiments of the present invention will be described in further detail.Implement below
Example is not intended to limit the scope of the invention for illustrating the present invention.
Referring to Fig. 1-4, one kind of a preferred embodiment of the present invention 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 invention avoids acetabular bones to lack
Damage selection cushion block, bone grafting etc. are united method, and the problem of avoiding contact interface between cushion block and mortar cup solves asking for bone grafting absorption
Topic, creates host bone and mortar cup surface completely attaches to, and ensure that prosthese and host bone contact area and Bone Ingrowth area.To same
When the advantages of remaining common huge mortar cup, 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 a preferred embodiment of the present invention, it is not intended to restrict the invention, it is noted that for this skill
For the those of ordinary skill in art field, without departing from the technical principles of the invention, can also make it is several improvement and
Modification, these improvements and modifications also should be regarded as protection scope of the present invention.
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,Outside outer mortar cupSurface 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 |
|---|---|---|---|
| CN201810840210.XA CN108969151A (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 |
|---|---|---|---|
| CN201810840210.XA CN108969151A (en) | 2018-07-26 | 2018-07-26 | Bias acetabular bone mortar cup prosthesis winged |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108969151A true CN108969151A (en) | 2018-12-11 |
Family
ID=64551828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810840210.XA Pending CN108969151A (en) | 2018-07-26 | 2018-07-26 | Bias acetabular bone mortar cup prosthesis winged |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108969151A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112842629A (en) * | 2020-12-30 | 2021-05-28 | 北京市春立正达医疗器械股份有限公司 | Rebuild acetabular cup of rebuilding acetabular anatomy rotation center |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH663893A5 (en) * | 1984-07-05 | 1988-01-29 | Sulzer Ag | Cement-less hip socket prosthesis - has horizontal knife edges protruding from polar area and extending downwards |
| FR2677878A1 (en) * | 1991-06-20 | 1992-12-24 | Tec Implant Sarl | Acetabular prosthesis |
| US20100268348A1 (en) * | 2009-04-20 | 2010-10-21 | Michael D. Ries | Acetabular Cup |
| CN102119876A (en) * | 2010-09-17 | 2011-07-13 | 北京爱康宜诚医疗器材股份有限公司 | Assembled wing-reinforced repairing acetabular cup prosthesis |
| CN103096841A (en) * | 2010-06-08 | 2013-05-08 | 史密夫和内修有限公司 | Implant components and methods |
| CN104783930A (en) * | 2015-04-29 | 2015-07-22 | 北京市春立正达医疗器械股份有限公司 | Acetabulum with firm rough face |
| CN209595965U (en) * | 2018-07-26 | 2019-11-08 | 肖建林 | Bias acetabular bone mortar cup prosthesis winged |
-
2018
- 2018-07-26 CN CN201810840210.XA patent/CN108969151A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH663893A5 (en) * | 1984-07-05 | 1988-01-29 | Sulzer Ag | Cement-less hip socket prosthesis - has horizontal knife edges protruding from polar area and extending downwards |
| FR2677878A1 (en) * | 1991-06-20 | 1992-12-24 | Tec Implant Sarl | Acetabular prosthesis |
| US20100268348A1 (en) * | 2009-04-20 | 2010-10-21 | Michael D. Ries | Acetabular Cup |
| CN103096841A (en) * | 2010-06-08 | 2013-05-08 | 史密夫和内修有限公司 | Implant components and methods |
| CN102119876A (en) * | 2010-09-17 | 2011-07-13 | 北京爱康宜诚医疗器材股份有限公司 | Assembled wing-reinforced repairing acetabular cup prosthesis |
| CN104783930A (en) * | 2015-04-29 | 2015-07-22 | 北京市春立正达医疗器械股份有限公司 | Acetabulum with firm rough face |
| CN209595965U (en) * | 2018-07-26 | 2019-11-08 | 肖建林 | Bias acetabular bone mortar cup prosthesis winged |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112842629A (en) * | 2020-12-30 | 2021-05-28 | 北京市春立正达医疗器械股份有限公司 | Rebuild acetabular cup of rebuilding acetabular anatomy rotation center |
| CN112842629B (en) * | 2020-12-30 | 2022-03-11 | 北京市春立正达医疗器械股份有限公司 | Rebuild acetabular cup of rebuilding acetabular anatomy rotation center |
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