CN201164512Y

CN201164512Y - Artificial hip joint acetabulum exterior lining

Info

Publication number: CN201164512Y
Application number: CNU2008200059626U
Authority: CN
Inventors: 汉斯·爱瑞克森
Original assignee: MANDKAM CO Ltd
Current assignee: MANDKAM CO Ltd
Priority date: 2008-03-05
Filing date: 2008-03-05
Publication date: 2008-12-17
Anticipated expiration: 2018-03-05

Abstract

The utility model relates to an outer cotyle lining of an artificial hip joint, which includes a lining body and an inner three-dimensional net body integrally formed in the inner surface of the lining body; the surface of the inner three-dimensional net body is provided with a plurality of inner holes from the outside to the inside, the inside of the inner three-dimensional net body is provided with transverse ducts of a communicating part or of all the inner holes. Osseous cement is injected into the inner surface of the outer cotyle lining during the operation, the flowing osseous cement penetrates and permeates the inner holes and the transverse ducts of the inner three-dimensional net body of the outer cotyle lining, an inner cotyle lining is enclosed and conglutinated before the osseous cement is solidified, the inner three-dimensional net body and the inner cotyle lining are firmly integrated with the osseous cement when the osseous cement is completely solidified, and then the long-dated looseness between the outer cotyle lining and the inner cotyle lining can be effectively prevented.

Description

A kind of artificial hip joint acetabulum outside liner

Technical field

This utility model relates to a kind of artificial hip joint acetabulum outside liner.

Background technology

The artificial hip joint replacing operation has become a kind of common relatively surgical operation in medical circle at present, the common acetabular bone liner made from ultra high molecular polyethylene of need packing in the inboard of artificial hip joint acetabulum outside liner, acetabulum outside liner is generally used mechanical assembling form with cooperating of acetabular bone liner, snap ring back-up ring formula for example, shape is embedded or the like, but still can leave minim gap between the acetabulum outside liner of these forms and the acetabular bone liner, in use have fine motion and produce and generate small chip, the molten ossein that these microgranules are produced after by macrophage phagocytic will finally cause the dissolving of Periprosthetic bone, and this just gives in the future that prosthetic loosening brings hidden danger; In addition, the inside of acetabulum outside liner and the position of interliner generally are to adopt the processing of turning Milling Process method, like this for band fixedly the turning Milling Process of the inside of the acetabulum outside liner of wing plate just quite bothered the main difficulty location that is to be installed.

The utility model content

The purpose of this utility model provides a kind ofly is convenient to make and can uses the artificial hip joint acetabulum outside liner of bone cement with artificial hip joint acetabular bone liner and acetabulum outside liner strong bond.

For achieving the above object, this utility model is taked following design:

Artificial hip joint acetabulum outside liner, it is characterized in that, it comprises: lining body and at the integrally formed interior three-dimensional dictyosome of described lining body inner surface, the surface of three-dimensional dictyosome has most endoporus from outward appearance to inner essence in described, three-dimensional dictyosome inside has the horizontal duct of connected component or whole endoporus in described, and the horizontal duct of described interior three-dimensional dictyosome is monolayer duct or multilamellar duct.

Three-dimensional dictyosome outside the outer surface of described lining body is formed with, the surface of described outer three-dimensional dictyosome has most outer holes from outward appearance to inner essence, described outer three-dimensional dictyosome inside has the horizontal duct in connected component or whole outer holes, and the horizontal duct of described outer three-dimensional dictyosome is monolayer duct or multilamellar duct.

Described outer three-dimensional dictyosome is arranged in the whole outer surface or the local outer surface of described lining body.

The surface of described outer three-dimensional dictyosome has hydroxyapatite coating layer.

Three-dimensional dictyosome is arranged in the total inner surface or the local inner surface of described lining body in described.

It adopts medical metal or bioceramic to make.

Described lining body outwards protrudes out one or two or three fixedly wing plate that has screw hole.

The outer surface that contacts with sclerotin of described fixedly wing plate is formed with three-dimensional dictyosome, the surface of described three-dimensional dictyosome has most holes from outward appearance to inner essence, described three-dimensional dictyosome inside has the horizontal duct in connected component or whole holes, and the horizontal duct of described three-dimensional dictyosome is monolayer duct or multilamellar duct.

The utility model has the advantages that:

1, this utility model artificial hip joint acetabulum outside liner, it comprises: serve as a contrast body and serving as a contrast the integrally formed interior three-dimensional dictyosome of body inner surface, the surface of interior three-dimensional dictyosome has most endoporus from outward appearance to inner essence, and interior three-dimensional dictyosome inside has the horizontal duct of connected component or whole endoporus.Inner surface at acetabulum outside liner in the operation injects bone cement, the bone cement of flow regime will permeate and be full of in the endoporus and horizontal duct of interior three-dimensional dictyosome of acetabulum outside liner, before bone cement solidifies, pack into the acetabular bone liner bonding, three-dimensional dictyosome and acetabular bone liner and bone cement are connected in aggregatesly securely in after the bone cement full solidification, can prevent from effectively between acetabulum outside liner and the acetabular bone liner long-term loosening to take place.

2, this utility model artificial hip joint acetabulum outside liner, the outer surface that wherein serves as a contrast body is formed with outer three-dimensional dictyosome, and the surface of outer three-dimensional dictyosome has several outer holes from outward appearance to inner essence, and outer three-dimensional dictyosome inside has the horizontal duct in connected component or whole outer holes.Therefore, the patient in the blind hole of the outer three-dimensional dictyosome of the chimeric lining body of growing into of osteocyte meeting and the duct and around locking, reaches the effect that prevents that long-term effectively generation is become flexible between artificial hip joint acetabulum outside liner and sclerotin after artificial hip joint acetabulum outside liner is installed.

3, this utility model artificial hip joint acetabulum outside liner can make outer three-dimensional dictyosome be arranged in the whole outer surface or the local outer surface of lining body according to the difference of patient's sclerotin damaged condition and the needs of biomechanics.

4, this utility model artificial hip joint acetabulum outside liner, the surface of its China and foreign countries' three dimensional network body has the hydroxyapatite coating layer that can induce osteocyte to grow into, and this hydroxyapatite coating layer can adopt conventional plasma spraying method or the heavy collection method of electrochemistry to form.

5, this utility model artificial hip joint acetabulum outside liner, the needs that design according to liner make interior three-dimensional dictyosome be arranged in the total inner surface or the local inner surface of lining body.

6, this utility model artificial hip joint acetabulum outside liner, the horizontal duct of its China and foreign countries' three dimensional network body is the monolayer duct, if look darker and sclerotin is connected more firm then adopts the multilamellar duct with artificial hip joint acetabulum outside liner for the ease of sclerotin.

7, this utility model artificial hip joint acetabulum outside liner uses medical metal or bioceramic to make, so it has good biocompatibility.

8, this utility model artificial hip joint acetabulum outside liner, wherein the horizontal duct of interior three-dimensional dictyosome is the monolayer duct, if connect more firm then horizontal duct employing multilamellar duct between acetabulum outside liner and the acetabular bone liner in order to make.

9, this utility model artificial hip joint acetabulum outside liner wherein serves as a contrast body and outwards protrudes out one or two or three fixedly wing plate that has installing hole.At first patient's acetabular fossa is cleared up operation Shi doctor, wait to expose behind the spongy bone with this utility model artificial hip joint acetabulum outside liner with specific purpose tool squeeze into then with screw by the lining body and fixedly the screw hole on the wing plate will serve as a contrast body and be tightened on ilium, on the adjacent regions such as ischium and pubis, make the artificial hip joint acetabulum outside liner outer surface three-dimensional dictyosome tightly push the sclerotin that the residence touches, the postoperative artificial hip joint acetabulum outside liner will be at first obtains the stable of initial stage by screw, treats that grow into gradually artificial hip joint acetabulum outside liner behind the hole that is connected of outer three-dimensional dictyosome and the duct of sclerotin will obtain to stablize good long term effect to prevent to become flexible.

Description of drawings

Fig. 1 is this utility model embodiment one perspective view

Fig. 2 is this utility model embodiment one stereochemical structure cross-sectional schematic

Fig. 3 is this utility model embodiment one local enlarged diagram

Fig. 4 is this utility model embodiment two perspective view

Fig. 5 is this utility model embodiment two sectional structure sketch maps

Fig. 6 is this utility model embodiment two local enlarged diagrams

Fig. 7 is three dimensional network body structure sketch map (the horizontal duct in the interior three-dimensional dictyosome is the monolayer duct) in this utility model

Fig. 8 is three dimensional network body structure sketch map (the horizontal duct in the interior three-dimensional dictyosome is the multilamellar duct) in this utility model

The specific embodiment

As Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, shown in Figure 8, this utility model artificial hip joint acetabulum outside liner, it is characterized in that, it comprises: serve as a contrast body 1 and serving as a contrast the integrally formed interior three-dimensional dictyosome 2 of body 1 inner surface, the surface of interior three-dimensional dictyosome 2 has most endoporus 3 from outward appearance to inner essence, interior three-dimensional dictyosome 2 inside have the horizontal duct 4 of connected component or whole endoporus 3, and the horizontal duct 4 of interior three-dimensional dictyosome 2 is monolayer duct (as shown in Figure 7) or 2 layers of duct (as shown in Figure 8) or 3 layers of duct or other multilamellar duct.

Three-dimensional dictyosome 5 outside lining body 1 outer surface is formed with, the surface of outer three-dimensional dictyosome 5 has most outer holes 6 from outward appearance to inner essence, outer three-dimensional dictyosome 5 inside have connected component or whole horizontal ducts 7 in outer holes 6, and the horizontal duct 7 of outer three-dimensional dictyosome 5 is monolayer duct or 2 layers of duct or 3 layers of duct or other multilamellar duct.

Outer three-dimensional dictyosome 5 is arranged in the whole outer surface (as Fig. 1, Fig. 2, Fig. 3, Fig. 4, shown in Figure 5) or the local outer surface (as shown in Figure 6) of lining body 1.

In the horizontal duct 7 of the horizontal duct 4 of three-dimensional dictyosome 2 and outer three-dimensional dictyosome 5 can be to be arranged in parallel or arranged crosswise or reticulate layout.

The surface of outer three-dimensional dictyosome 5 has hydroxyapatite coating layer, and this hydroxyapatite coating layer can adopt conventional plasma spraying method or the heavy collection method of electrochemistry to form.

Interior three-dimensional dictyosome 2 is arranged in the total inner surface or the local inner surface of lining body 1.

This utility model artificial hip joint acetabulum outside liner uses has the material manufacture of good biocompatibility, medical metal for example, bioceramic etc.

Lining body 1 outwards protrudes out one or two or three fixedly wing plates 9 (as Fig. 4, Fig. 5, shown in Figure 6) that have screw hole 8.At first patient's acetabular fossa is cleared up operation Shi doctor, wait to expose behind the spongy bone with this utility model artificial hip joint acetabulum outside liner with specific purpose tool squeeze into then with screw by the screw hole 10 on the lining body 1 and fixedly the screw hole 8 on the wing plate 9 will serve as a contrast body and be tightened on ilium, on the adjacent regions such as ischium and pubis, make the artificial hip joint acetabulum outside liner outer surface three-dimensional dictyosome tightly push the sclerotin that the residence touches, the postoperative artificial hip joint acetabulum outside liner will be at first obtains the stable of initial stage by screw, treats that grow into gradually artificial hip joint acetabulum outside liner behind the hole that is connected of outer three-dimensional dictyosome and the duct of sclerotin will obtain to stablize good long term effect to prevent to become flexible.

Fixedly the outer surface that contacts with sclerotin of wing plate 9 is formed with the three-dimensional dictyosome 11 of growing into for osteocyte, the surface of three-dimensional dictyosome 11 has most holes from outward appearance to inner essence, three-dimensional dictyosome 11 inside have the horizontal duct in connected component or whole holes, and the horizontal duct of three-dimensional dictyosome 11 is monolayer duct or multilamellar duct.

The processing method of this utility model artificial hip joint acetabulum outside liner is: set up the artificial hip joint acetabulum outside liner physical model in electronic computer, adopt laser or high-power electron beam processing method melt molding then, can also with methods such as spark machined, chemical attack cast or the outer lining blank surface etch of forging molding, erode away needed in three-dimensional dictyosome and outside the three dimensional network body structure, also can obtain required interior three-dimensional dictyosome and outer three dimensional network body structure in addition with powder sintering method.

Claims

1, artificial hip joint acetabulum outside liner, it is characterized in that, it comprises: lining body and at the integrally formed interior three-dimensional dictyosome of described lining body inner surface, the surface of three-dimensional dictyosome has most endoporus from outward appearance to inner essence in described, three-dimensional dictyosome inside has the horizontal duct of connected component or whole endoporus in described, and the horizontal duct of described interior three-dimensional dictyosome is monolayer duct or multilamellar duct.

2, artificial hip joint acetabulum outside liner according to claim 1, it is characterized in that, three-dimensional dictyosome outside the outer surface of described lining body is formed with, the surface of described outer three-dimensional dictyosome has most outer holes from outward appearance to inner essence, described outer three-dimensional dictyosome inside has the horizontal duct in connected component or whole outer holes, and the horizontal duct of described outer three-dimensional dictyosome is monolayer duct or multilamellar duct.

3, artificial hip joint acetabulum outside liner according to claim 2 is characterized in that, described outer three-dimensional dictyosome is arranged in the whole outer surface or the local outer surface of described lining body.

4, artificial hip joint acetabulum outside liner according to claim 2 is characterized in that, the surface of described outer three-dimensional dictyosome has hydroxyapatite coating layer.

According to claim 1 or 2 or 3 or 4 described artificial hip joint acetabulum outside liners, it is characterized in that 5, described interior three-dimensional dictyosome is arranged in the total inner surface or the local inner surface of described lining body.

According to claim 1 or 2 or 3 or 4 described artificial hip joint acetabulum outside liners, it is characterized in that 6, it adopts medical metal or bioceramic to make.

7, artificial hip joint acetabulum outside liner according to claim 5 is characterized in that, it adopts medical metal or bioceramic to make.

According to claim 1 or 2 or 3 or 4 described artificial hip joint acetabulum outside liners, it is characterized in that 8, described lining body outwards protrudes out one or two or three fixedly wing plate that has screw hole.

9, artificial hip joint acetabulum outside liner according to claim 5 is characterized in that, described lining body outwards protrudes out one or two or three fixedly wing plate that has screw hole.

10, artificial hip joint acetabulum outside liner according to claim 8, it is characterized in that, the outer surface that contacts with sclerotin of described fixedly wing plate is formed with three-dimensional dictyosome, the surface of described three-dimensional dictyosome has most holes from outward appearance to inner essence, described three-dimensional dictyosome inside has the horizontal duct in connected component or whole holes, and the horizontal duct of described three-dimensional dictyosome is monolayer duct or multilamellar duct.