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CN108969151A - Bias acetabular bone mortar cup prosthesis winged - Google Patents

Bias acetabular bone mortar cup prosthesis winged Download PDF

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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
acetabular cup
cup
winged
eccentric
acetabular
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
Application number
CN201810840210.XA
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Chinese (zh)
Inventor
肖建林
李学州
左建林
阮庆
陈尚钧
杨育晖
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Individual
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Individual
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Priority to CN201810840210.XA priority Critical patent/CN108969151A/en
Publication of CN108969151A publication Critical patent/CN108969151A/en
Pending legal-status Critical Current

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    • 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

本发明涉及髋关节修复手术技术领域，具体涉及一种带翼偏心髋臼臼杯假体，外臼杯，所述外臼杯具有半球形外表面，臼杯的半球形外表面具有三个翼；内臼杯，所述内臼杯具有半球形内腔，所述半球形内腔的球心与半球形外表面的球心相互错开。所述外臼杯的内壁边缘处均匀分布有多个限位机构，所述内臼杯的外壁边缘处均匀分布有多个定位机构。本发明避免了髋臼骨缺损选择垫块，植骨等统方法，避免了垫块与臼杯之间接触界面的问题，解决了植骨吸收的问题，创造了宿主骨与臼杯表面完全接触，保证了假体与宿主骨接触面积及骨长入面积，并且通过三个翼很大程度增加臼杯和宿主骨的接触面积并保证了臼杯的初始稳定性。

The invention relates to the technical field of hip joint repair surgery, in particular to an eccentric acetabular cup prosthesis with wings and an external acetabular cup, the external acetabular cup has a hemispherical outer surface, and the hemispherical outer surface of the acetabular cup has three wings The inner acetabular cup has a hemispherical inner cavity, and the spherical center of the hemispherical inner cavity and the spherical center of the hemispherical outer surface are mutually staggered. A plurality of limiting mechanisms are evenly distributed on the edge of the inner wall of the outer acetabular cup, and a plurality of positioning mechanisms are evenly distributed on the edge of the outer wall of the inner acetabular cup. The present invention avoids the conventional method of selecting cushion block and bone graft for acetabular bone defect, avoids the problem of the contact interface between the cushion block and the acetabular cup, solves the problem of bone graft absorption, and creates complete contact between the host bone and the surface of the acetabular cup , to ensure the contact area between the prosthesis and the host bone and the bone ingrowth area, and to greatly increase the contact area between the acetabular cup and the host bone through the three wings and ensure the initial stability of the acetabular cup.

Description

Bias acetabular bone mortar cup prosthesis winged
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)

1.一种带翼偏心髋臼臼杯假体，其特征在于，包括：1. A winged eccentric acetabular cup prosthesis, characterized in that it comprises: 外臼杯，所述外臼杯具有半球形外表面；外臼杯的半球形外表面具有有三个翼，三个翼从半球形外表面顶部向周围延伸，三个翼之间的夹角为30°。The outer acetabular cup has a hemispherical outer surface; the hemispherical outer surface of the outer acetabular cup has three wings, and the three wings extend from the top of the hemispherical outer surface to the surroundings, and the included angle between the three wings is 30°. 内臼杯，所述内臼杯具有半球形内腔，所述半球形内腔的球心与半球形外表面的球心相互错开，。The inner acetabular cup, the inner acetabular cup has a hemispherical inner cavity, the center of the hemispherical inner cavity and the center of the hemispherical outer surface are staggered from each other. 2.根据权利要求1所述的带翼偏心髋臼臼杯假体，其特征在于：所述外臼杯的内壁边缘处均匀分布有多个限位机构，所述内臼杯的外壁边缘处均匀分布有多个定位机构，外臼杯与内臼杯通过多个限位机构和定位机构配合连接。2. The winged eccentric acetabular cup prosthesis according to claim 1, characterized in that: a plurality of limiting mechanisms are evenly distributed on the edge of the inner wall of the outer cup, and the outer wall edge of the inner cup is A plurality of positioning mechanisms are evenly distributed, and the outer acetabular cup and the inner acetabular cup are connected through a plurality of limiting mechanisms and positioning mechanisms. 3.根据权利要求2所述的带翼偏心髋臼臼杯假体，其特征在于：所述外臼杯一端距内臼杯较远的边缘处设置有多个固定孔。3 . The winged eccentric acetabular cup prosthesis according to claim 2 , wherein a plurality of fixing holes are provided at the edge of the outer acetabular cup far from the inner acetabular cup. 4 . 4.根据权利要求2所述的带翼偏心髋臼臼杯假体，其特征在于：所述限位机构为限位凸起，限位凸起的数量为6-8个。4. The winged eccentric acetabular cup prosthesis according to claim 2, characterized in that: the limit mechanism is a limit protrusion, and the number of limit protrusions is 6-8. 5.根据权利要求2所述的带翼偏心髋臼臼杯假体，其特征在于：所述定位机构为定位凹槽，定位凹槽的数量为12-16个。5. The winged eccentric acetabular cup prosthesis according to claim 2, wherein the positioning mechanism is a positioning groove, and the number of positioning grooves is 12-16. 6.根据权利要求4或5所述的带翼偏心髋臼臼杯假体，其特征在于：所述内臼杯的厚度为3.8mm-15.8mm。6. The winged eccentric acetabular cup prosthesis according to claim 4 or 5, characterized in that: the thickness of the inner cup is 3.8mm-15.8mm. 7.根据权利要求6所述的带翼偏心髋臼臼杯假体，其特征在于：所述外臼杯的直径为56mm、58mm、60mm、62mm或64mm；内臼杯的直径为40mm、42mm、44mm、46mm或48mm。7. The winged eccentric acetabular cup prosthesis according to claim 6, characterized in that: the diameter of the outer cup is 56mm, 58mm, 60mm, 62mm or 64mm; the diameter of the inner cup is 40mm, 42mm , 44mm, 46mm or 48mm. 8.根据权利要求7所述的带翼偏心髋臼臼杯假体，其特征在于：所述外臼杯的杯顶外侧具有凸沿，该凸沿与外臼杯外壁连接处开有环形凹槽。8. The winged eccentric acetabular cup prosthesis according to claim 7, characterized in that: there is a convex edge on the outside of the cup top of the outer cup, and an annular concave is formed at the connection between the convex edge and the outer wall of the outer cup groove. 9.根据权利要求8所述的带翼偏心髋臼臼杯假体，其特征在于：所述外臼杯由金属制成，外臼杯的外表面具有微孔钛丝涂层；所述内臼杯由聚乙烯制成。9. The winged eccentric acetabular cup prosthesis according to claim 8, characterized in that: the outer cup is made of metal, and the outer surface of the outer cup has a microporous titanium wire coating; Acetabular cups are made of polyethylene. 10.根据权利要求9所述的带翼偏心髋臼臼杯假体，其特征在于：所述内臼杯由高分子聚乙烯制成。10. The winged eccentric acetabular cup prosthesis according to claim 9, wherein the inner cup is made of high molecular weight polyethylene.
CN201810840210.XA 2018-07-26 2018-07-26 Bias acetabular bone mortar cup prosthesis winged Pending CN108969151A (en)

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Application Number Priority Date Filing Date Title
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Cited By (1)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (7)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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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Application publication date: 20181211