CN209187074U - A kind of acetabular component - Google Patents
A kind of acetabular component Download PDFInfo
- Publication number
- CN209187074U CN209187074U CN201821631925.6U CN201821631925U CN209187074U CN 209187074 U CN209187074 U CN 209187074U CN 201821631925 U CN201821631925 U CN 201821631925U CN 209187074 U CN209187074 U CN 209187074U
- Authority
- CN
- China
- Prior art keywords
- acetabular
- accommodating chamber
- bone liner
- acetabular bone
- component according
- 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.)
- Active
Links
Landscapes
- Prostheses (AREA)
Abstract
The utility model discloses a kind of acetabular components, comprising: acetabular cup is hemispherical dome structure, and one end has the first opening, and internal with the first accommodating chamber；Wherein, multiple grooves are evenly arranged on the inside of the annular groove that is internally provided with of first accommodating chamber, edge；Acetabular bone liner is arranged in first accommodating chamber, and one end has the second opening, and the acetabular bone liner has the second accommodating chamber；The acetabular bone liner is provided with boss on outer surface, can be fixed with the groove；Buckle is arranged in acetabular bone liner outer surface, can be fixed with the annular groove；Edge protuberance is arranged at the second open edge of the acetabular bone liner；Wherein, the inner surface of second accommodating chamber is cambered surface, can accommodate femoral head prosthesis, and the centre of sphere height of the cambered surface is higher than the centre of sphere height of the femoral head prosthesis.
Description
Technical field
The utility model relates to the field of medical instrument technology, and more particularly, the utility model relates to a kind of acetabular components.
Background technique
Prosthese medically becomes dummy, is a kind of medical instrument for substituting some limbs of human body, organ-tissue.People
Hip joint is made, is one kind of artificial joint, copies the structure of human hip, injects metallic rod, bar top from thigh upper end
There is a metal ball, instead of at the top of femur, as soon as fixing an acetabular component in acetabular fossa, metal ball can be in acetabular fossa.
The pelvis of human body is connected with thigh through hip joint, and hip joint can live to people once being damaged and cause serious inconvenience.Hip joint is false
Body, also referred to as artificial hip joint, artificial hip prosthesis copy the structure of human hip, and the bright portion of prosthese is inserted into femoral bone cavitas medullaris
It is interior, it is metal cup-shaped at rotation using head and cotyla or prosthese, realize bending and stretching and moving for femur, artificial femoral articulation is hip
Joint is a kind of manikin, main component has titanium and cochrome etc. special because of the substitute when causes of disease such as arthritis are impaired
The special materials such as kind metal, and ceramics, high molecular material, after artificial femoral articulation is transplanted on human body, never allow to generate
Side effect and corrosion, it is desirable that there is high-strength durable, be a kind of high-tech accurate medical product.
Hipbone (acetabulum) is a bone of human body, is synthesized by the body of ilium, seat, three bone group of shame.Half a month in nest
The articular surface of shape claims facies lunata (lunate surface).The part of the not formed articular surface in center of nest, claims acetabular fossa.Acetabular bone side
The notch of edge lower part claims acetabular notch.Acetabular component operation is also one of operation relatively conventional in current prosthetic surgery.Acetabular bone
Prosthese is usually made of acetabular cup and liner.If be not fixed firmly between acetabular cup and liner, during hip joint movement
It will there is a phenomenon where liners to dislocate.During femoral head prosthesis is movable in acetabular component, if the soft tissue of patient is deposited
In defect, it is easy to happen the phenomenon that femoral head is deviate from.
Acetabular component is divided into bion and two class of bone-cement type according to the fixed form difference with bone.Biological acetabulum prosthese
Need to be formed the fixation of prosthese by Bone Ingrowth to prosthese outer surface.The condition of initial stage Bone Ingrowth prosthese be acetabular component outer surface with
The gap in acetabular bone face is not too much.
The reason for causing acetabular component position bad has very much, such as appears insufficient, and patient size is larger, and guider is inaccurate
Really and in art patient body position changes.Position it is bad will increase displacement rate, lead to limbs length difference, prosthese is hit,
Interface abrasion, or even need to carry out revision procedure.The malposition of acetabular bone can also change the biomethanics of hip joint, lead to pelvis
Osteolysis and acetabular component displacement.Although there is the concept of acetabular bone safety zone, this previous item is based on the full hip of U.S.'s Medical-Care System
The postoperative 6 months distraction rates of the studies have shown that Primary replacement of joint replacement are 3.9%, revision procedure 14.4%.And nearest
One researches show that revision procedure dislocations and unstable ratio to be up to 22.5%.
Utility model content
The utility model is to solve current technology shortcoming, provides a kind of acetabular component, by acetabular cup and
The multiple snap-in function of acetabular bone liner prevents the rotationally and axially movable of acetabular bone liner, reinforces the two and combines, and prevents femoral head de-
Occur as occurring.
A kind of technical solution provided by the utility model are as follows: acetabular component, comprising:
Acetabular cup is hemispherical dome structure, and one end has the first opening, and internal with the first accommodating chamber；Wherein, in institute
The annular groove that is internally provided with of the first accommodating chamber is stated, is evenly arranged with multiple grooves on the inside of edge；
Acetabular bone liner is arranged in first accommodating chamber, and one end has the second opening, and the acetabular bone liner has
There is the second accommodating chamber；The acetabular bone liner is provided with boss on outer surface, can be fixed with the groove；
Buckle is arranged in acetabular bone liner outer surface, can be fixed with the annular groove；
Edge protuberance is arranged at the second open edge of the acetabular bone liner；
Wherein, the inner surface of second accommodating chamber is cambered surface, can accommodate femoral head prosthesis, and the ball of the cambered surface
Heart height is higher than the centre of sphere height of the femoral head prosthesis.
Preferably, further includes:
The other end of the acetabular cup is arranged in fixation hole；
Screw is arranged in the fixation hole, is connected and fixed the acetabular cup and the acetabular bone liner.
Preferably,
Multiple vibration holes are evenly arranged at first open edge of the acetabular cup.
Preferably,
The acetabular cup outer surface is provided with micropore.
Preferably,
The acetabular cup outer surface is provided with coating.
Preferably,
The buckle spaced set.
Preferably,
The acetabular cup is made of alloy material.
Preferably,
The acetabular bone liner is made of high molecular material.
Preferably,
First accommodating chamber and acetabular bone liner outer surface are interference fitted.
Preferably,
First accommodating chamber bottom is spherical surface；
The other end outer surface of the acetabular bone liner is spherical surface, and can be bonded with first accommodating chamber bottom.
It is described in the utility model the utility model has the advantages that mistake between the acetabular cup and acetabular bone liner of the acetabular component of the utility model
It is full of cooperation, and is fixed by annular groove with what is buckled, prevents acetabular bone liner from axially moving in acetabular cup, be not easy it
The dislocation of acetabular bone liner and prosthese node phenomenon occurs；The fixation of groove and boss prevents rotation of the acetabular bone liner in acetabular cup；
Fixation hole is set above acetabular cup, by the fixation of screw, acetabular cup and acetabular bone liner can be made to be in close contact, reach the steady of initial stage
Determine fixed function.The acetabular component of the utility model is not susceptible to femoral head prosthesis dislocation phenomenon in hip joint motion process.
Detailed description of the invention
Fig. 1 is the acetabular component external structure of the utility model.
Fig. 2 is the explosive view of the acetabular component of the utility model.
Fig. 3 is the structure chart of the acetabular cup of the utility model.
Fig. 4 is the structure chart of the acetabular bone liner of the utility model.
Fig. 5 is the external structure of the acetabular cup of the utility model.
Specific embodiment
The following describes the utility model in further detail with reference to the accompanying drawings, to enable those skilled in the art referring to explanation
Book text can be implemented accordingly.
As shown in Figs. 1-5, the utility model provides a kind of acetabular component, including acetabular cup 100 and acetabular bone liner 200,
For the matching of acetabular bone liner 200 in acetabular cup 100, outer surface is as shown in Figure 1 in use process.In the outer tip end of acetabular cup 100
Multiple fixation holes 110 are provided with, screw may be provided in fixation hole 110, acetabular cup 100 is fixedly connected with acetabular bone liner 200,
Make its close contact, it is fixed to have the function that initial stage stablizes.
As shown in Figures 2 and 3, acetabular cup 100 is hemispherical dome structure, and one end has the first opening, and other end setting is fixed
Hole 110.There is the first accommodating chamber 150, the first opening of connection inside acetabular cup 100；Wherein, in first accommodating chamber 150
It is internally provided with annular groove 120, is evenly arranged with multiple grooves 130 on the inside of edge.The place plane of annular groove 120 and the first opening is flat
Row setting, groove 130 is close to the first opening, on the inside of the edge of the first accommodating chamber 150.
As shown in Figures 4 and 5, acetabular bone liner 200 is arranged in first accommodating chamber 150, and one end has the second opening, and
And the acetabular bone liner 200 has the second accommodating chamber 240, the inner surface of the second accommodating chamber 240 is cambered surface, can accommodate femoral head
Prosthese.Boss 210 is provided on 200 outer surface of acetabular bone liner, boss 210 can be fixed with annular groove 120.It is multiple convex
Platform 210 is set in qually spaced in the outer surface of acetabular bone liner 200.Boss 210 can be by acetabular bone liner 200 with the engaging of groove 130
It is fixed with acetabular cup 100, prevent acetabular bone liner 200 in 100 internal rotating of acetabular cup.
The outer surface of acetabular bone liner 200 is provided with multiple buckles 220, buckle 220 is around 200 outer surface of acetabular bone liner circle
Week is uniformly arranged, and can be fixed with the annular groove 120, prevent acetabular bone liner 200 from axially rotating in acetabular cup 100.
Edge protuberance 230 is arranged at the second open edge of the acetabular bone liner 200, the medial surface of edge protuberance 230
Cambered surface is constituted with the inner wall of the second accommodating chamber 240, so that there is flash design in the second opening side of acetabular bone liner 200, it can
Prevent femoral head prosthesis from deviating from.
The inner surface of second accommodating chamber 240 is cambered surface, can accommodate femoral head prosthesis, and the radius of the cambered surface is less than
The radius of femoral head prosthesis, when being used cooperatively, the centre of sphere height of 240 intrados of the second accommodating chamber is higher than the femoral head prosthesis
Centre of sphere height, thus mobility of the femoral head prosthesis in cambered surface is big.First accommodating chamber, 150 bottom is spherical surface, acetabular bone liner
200 other end outer surface is spherical surface, and can be bonded with 150 bottom of the first accommodating chamber, keeps its fitting close.First accommodates
Chamber 150 and 200 outer surface of acetabular bone liner are interference fitted.
Multiple vibration holes 140 are evenly arranged at first open edge of the acetabular cup 100.Vibrate hole 140 opening and
First opening is in the same direction.Vibration hole 140 can cooperate with instrument, can be taken off acetabular bone liner 200 using vibration.
Acetabular cup 100 is made of alloy material, and acetabular bone liner 200 is made of high molecular material.100 appearance of acetabular cup
Face is provided with micropore and coating, can promote Bone Ingrowth.
It, can be by 200 bottom of acetabular bone liner when the femoral head prosthesis upward dislocation of the patient of hip joint soft tissue existing defects
The buckle 220 at portion edge blocks, and prevents femoral head from dislocating.
Acetabular cup and acetabular bone liner are fixed by the way that inside is multiple in the utility model, and then screw is solid at fixation hole again
Fixed, the two fixation, fitting is close, and click-on design prevents acetabular bone liner from axially rotationally and axially moving, and bone can be grown
Enter acetabular component outer surface, avoid prosthetic loosening, is implanted to power height.
It is not only in the description and the implementation although the embodiments of the present invention have been disclosed as above
Listed utilization, it can be applied to various fields suitable for the present invention completely, for those skilled in the art,
Other modifications may be easily implemented, therefore without departing from the general concept defined in the claims and the equivalent scope, this reality
It is not limited to specific details and legend shown and described herein with novel.
Claims (10)
1. a kind of acetabular component characterized by comprising
Acetabular cup is hemispherical dome structure, and one end has the first opening, and internal with the first accommodating chamber；Wherein, described
One accommodating chamber is internally provided with annular groove, is evenly arranged with multiple grooves on the inside of edge；
Acetabular bone liner is arranged in first accommodating chamber, and one end has the second opening, and the acetabular bone liner has the
Two accommodating chambers；The acetabular bone liner is provided with boss on outer surface, can be fixed with the groove；
Buckle is arranged in acetabular bone liner outer surface, can be fixed with the annular groove；
Edge protuberance is arranged at the second open edge of the acetabular bone liner；
Wherein, the inner surface of second accommodating chamber is cambered surface, can accommodate femoral head prosthesis, and the centre of sphere of the cambered surface is high
Degree is higher than the centre of sphere height of the femoral head prosthesis.
2. acetabular component according to claim 1, which is characterized in that further include:
The other end of the acetabular cup is arranged in fixation hole；
Screw is arranged in the fixation hole, is connected and fixed the acetabular cup and the acetabular bone liner.
3. acetabular component according to claim 2, which is characterized in that
Multiple vibration holes are evenly arranged at first open edge of the acetabular cup.
4. acetabular component according to claim 3, which is characterized in that
The acetabular cup outer surface is provided with micropore.
5. acetabular component according to claim 3, which is characterized in that
The acetabular cup outer surface is provided with coating.
6. acetabular component according to claim 1, which is characterized in that
The buckle spaced set.
7. acetabular component according to claim 1, which is characterized in that
The acetabular cup is made of alloy material.
8. acetabular component according to claim 7, which is characterized in that
The acetabular bone liner is made of high molecular material.
9. acetabular component according to claim 8, which is characterized in that
First accommodating chamber and acetabular bone liner outer surface are interference fitted.
10. acetabular component according to claim 9, which is characterized in that
First accommodating chamber bottom is spherical surface；
The other end outer surface of the acetabular bone liner is spherical surface, and can be bonded with first accommodating chamber bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821631925.6U CN209187074U (en) | 2018-10-09 | 2018-10-09 | A kind of acetabular component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821631925.6U CN209187074U (en) | 2018-10-09 | 2018-10-09 | A kind of acetabular component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209187074U true CN209187074U (en) | 2019-08-02 |
Family
ID=67407444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821631925.6U Active CN209187074U (en) | 2018-10-09 | 2018-10-09 | A kind of acetabular component |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209187074U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110584840A (en) * | 2019-10-18 | 2019-12-20 | 北京安颂科技有限公司 | Acetabular prosthesis and hip prosthesis |
| WO2021147789A1 (en) * | 2020-01-21 | 2021-07-29 | 北京纳通医疗科技控股有限公司 | Acetabular cup prosthesis and locking structure therefor |
| CN115462935A (en) * | 2022-08-12 | 2022-12-13 | 广州市威马兽医科技服务有限公司 | Double-layer acetabular cup prosthesis and preparation method thereof |
-
2018
- 2018-10-09 CN CN201821631925.6U patent/CN209187074U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110584840A (en) * | 2019-10-18 | 2019-12-20 | 北京安颂科技有限公司 | Acetabular prosthesis and hip prosthesis |
| WO2021147789A1 (en) * | 2020-01-21 | 2021-07-29 | 北京纳通医疗科技控股有限公司 | Acetabular cup prosthesis and locking structure therefor |
| CN115462935A (en) * | 2022-08-12 | 2022-12-13 | 广州市威马兽医科技服务有限公司 | Double-layer acetabular cup prosthesis and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4178031B2 (en) | A containment system for restraining prosthetic component parts | |
| JP4057068B2 (en) | Lock mechanism for acetabular cup | |
| US5507819A (en) | Apparatus and method for stabilizing a humeral head in a shoulder | |
| KR101658266B1 (en) | Interlocking reverse hip and revision prosthesis | |
| EP2405866B1 (en) | Motion inducing reverse shoulder assembly | |
| US20060217815A1 (en) | Modular prosthetic head having a flat portion to be implanted into a constrained liner | |
| US10524918B2 (en) | Hip joint device | |
| US20040122519A1 (en) | Prosthetic glenoid | |
| CN209187074U (en) | A kind of acetabular component | |
| JP2004526493A (en) | Implant locking system | |
| US20040078083A1 (en) | Modular prosthetic head having a flat portion to be implanted into a constrained liner | |
| US6120546A (en) | Implantable prosthesis having spring-engaged hole plugs | |
| CN109106474A (en) | A kind of orthopaedics implant | |
| CN209048363U (en) | A kind of orthopaedics implant | |
| EP3691572B1 (en) | Improved prosthesis component, so-called liner, for an acetabular or glenoid cup | |
| CN209253232U (en) | A kind of cement mo(u)ld acetabular component | |
| US11419729B2 (en) | Constrained acetabular liner | |
| CN209316154U (en) | A kind of Dipolar femoral head prosthese | |
| WO1995015132A1 (en) | Orthopedic implant | |
| CN117257528A (en) | Acetabular prosthesis, method for producing an acetabular prosthesis and joint prosthesis | |
| CA3204467A1 (en) | Reverse shoulder prosthesis and related methods |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |