JPS61226038A - Production of substitute bone implant - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to the production process of substitute 1'1 in 1 runt made from fiber III-reinforced glass fibers.
Prior art] The first step in the development of a substitute implant is to place a bone substitute in the affected area (Φkawa Riruki (Kozono Il + 1)).
The river (during the T forgiveness, the natural task is 1), it is more than 1 ゛1 so that it does not happen, the river side (a certain inspector can be removed (- and iii function, That's right.

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44'll'd (well, well known 11. 'U
There is. Inburan I (51)
1 fortune telling fQ mercenary J, Su11,1! ,, knee) to 04'
It is very likely that you will have a fixed and cloudy life.

The present invention has the task of creating the technical method mentioned at the outset so that the implants implanted (-1) can achieve a longer service life.

According to the present invention, the problem is that after manufacturing the fiber-reinforced plastic body, the fibers are exposed on the surface of the plastic body. The problem is solved by the manufacturing method.

Research has shown that exposed fibers create better requirements for ulceration with the surrounding bone of the implant. At the same time, fixation is ensured by not using an intermediate layer for the cement 1, which would crumble in the gap between the bone and the implant.

It is also an object of the present invention to manufacture a fiber-reinforced matrix to be kept in an implant type with fibers oriented in approximately one direction, and to manufacture the matrix from fibers or individual filaments 1 to 1. The fabric to be impregnated is one in which the fibers of the matrix are wrapped around each other so as to intersect with each other.
Next, the matrix and the fabric are joined together by extrusion,
The surface of the manufactured implant is partially treated to partially expose the fibers. This is solved by the method of manufacturing Alternative Example Inblan 1. The advantage of this 1J manufacturing method is that it can obtain good shoreline stiffness and torsional stiffness based on the fiber orientation, can absorb high loads, and therefore has no resistance to fixation in the bone of the prosthesis. Being able to resist mountain interference. This (, 1 especially in the joint imbrane 1-J: Runi ramus 9?
In terms of production technology, this solution can be achieved in just 7 steps, and the IMBRAN 1 made from a combination of two parts costs 5 yen. /l The fiber orientation is 1)・)! e) It has the characteristic of being notified. The matrix (51 preferably (1) is made from fibers that are aligned in a single direction of compression, and the torsional stiffness is rated Jj to separately manufactured fibers, and the fibers are attached to the implant as required for the screw 41 rigid bamboo. A crossed arrangement has been formed.

Carbon fiber is used for adhesion requirements.G
- and it is borif'norglycidyl 1--ral and 4
．． 4-Diaminodino [embedded in a matrix from a 11h compound such as nilzurbone]. This shrine 1's 1'1 has been shown by experiment and research to have excellent body integration 111, so that the implant is directly surrounded by bone tissue in the 141'l surface condition,
The wear of this item is promoted. If this is necessary by White L4, it will be necessary to use the middle layer.

When the implant is to be implanted, it is mechanically treated to make it rough in order to expose and cover the fibers after hardening of the 71 helix'+3'1. It is proposed that

Molding is performed by mechanical processing to produce the implant. This process can be done by, for example, using a milling cutter to expose the fibers on the surface in the same way. i can write.

Fabric (, 1 toku 1 koko 7 :lt, < is made from carbon fiber, charcoal −
4 impregnated with a condensate of dij7minodif]-nilzulfone
1. First, the surface is cut into a rice plate to expose the true fibers.

According to the present invention, a preferred joint prosthesis of the Rosino method consists of a joint i, Hi'i, 1) which cooperates with the glenoid fossa, and a joint prosthesis consisting of rl'/? 1, 1, and moreover, 1'1, which is inserted into 11 at the throat of the prosthesis, exposes the outer surface of the glenoid fossa 1,
Sea urchin processing (\ne-(there is).

The present invention makes it possible to extend the service life of joint prostheses by extending the service life of the joint prosthesis.
', is reduced to 1. In order to increase the strength of the bone, a supporting crown is placed on the part that protrudes from the bone.
It has been proposed to provide a laminate made from aluminum oxide, silicon nitride, and silicon nitride.

The screw thread is 89[V] by screwing in place of the Jj of the 1st and 1st sockets in the barrier Dt' + socket, and make sure to tighten f1 L12/;: IJ). First of all, this feature (J2, in combination with the large surface treatment, reduces the durability of J Inoin Blanc 1-1 for the joint., bone). Displacement or 1. t)f/destruction 1.1 is significantly avoided, and even more so to prevent the accidental process as much as possible. Furthermore, the joint position of joint implants (161 per year is itself extremely important). Also, this does not reduce the number of years a fixed desired J:M can be used. Relamic ball IJ11, which becomes the socket 1, is made from the carbon fiber reinforced composite material described above.
Important 1! It was clear that there was no L wear. example※?
In contrast to 1, the fabric is made in the form of a hose and placed on the diaphysis, which can be achieved by the usual method of wrapping the fibers so that the woven fibers occupy the preferred drawn position, the hose being 11
It is strongly stretched at the swollen end of the trunk.

Next, the h method of the present invention will be explained in detail with reference to the drawings showing examples.

Figure 1 shows a large 11 inch bone implant. It consists of a bone with a supporting crown 11 and an articular ball 12 and a glenoid fossa 13. A'3 is attached to the carbon fiber-reinforced diaphysis, providing the necessary rigidity when a load is applied to this prosthetic limb in the direction of axis IJ! j'? The fibers are oriented in one direction, parallel to the outer contour of the diaphysis 10.

The part 15 of the bulletin board 10 is formed into a circle shape 114 to accommodate and cover the joint ball 12, and the ball 12 is the -1- (kodoritsu ()) of the round button shape 15.

In order to determine the optimal 2r smoothness between the glenoid head 12 and the glenoid fossa 13, the articular head 12 is made of ceramic and the glenoid fossa (51 polynor glycidyl T-del and 4° 4'
-From Diaminosif J Nirzul Small? Trix ascends 1) is informed.

Human displacement of diaphysis 10! Inside of 16, axis 1-(
'Keep C as little as possible at the throat of the J load 1♂14 times)
A support crown 11 is placed on one end of the femur 16 on the other hand. In order to firmly fix the glenoid fossa 13, the glenoid fossa 13 is attached to the tip of the hip bone 18 of the pelvis. ``Kaniwajikomi is possible, but Jul Kome Neji+I+ 17 has been returned.

The prosthetic limb to be described is placed in front of the user as much as possible to fix it (one is the prosthetic limb fJ ・Generally, the prosthetic limb is Noi1-SaT
While you are there, you can definitely control VU and hold A Tsuru with lRf 1'!
'It's enough for me. In particular, the thigh here is a human (1 Iho or -10=) It is necessary for engineering that there is no bone. ff, 11 and Inbran I. The external treatment of the contact surfaces around the implant (its progression of cancer 71) is then treated with acid 1.
Crushed - C Aro 3. As shown in FIG. 2, this process mechanically roughens the surface of the upper part of the support 11 so as to expose the fiber 20. 1 [ made it possible to connect with the bone shrine 1 due to the biocompatibility created by carbon, and at the end of the Song Dynasty, the bones were modified.
hh, but that's 11 squares and 10 J: It's possible.

Exposure of the fiber tips and fibers is accomplished in the following manner. Exposure is carried out, for example, by connecting the pin 1 Ifin 13 directly to a milling cutter with a thread II+17.

The exposed VA cords 20 of the bovine fusion I11 significantly increase the saturation of the bone around the implant.

This fusion process can be supported by as little contact and mobility as possible between the bones and the prosthesis parts. this thing(
, 1. What is the following characteristic of kinumiai (↓ni": de)? It will be accomplished. That is, the high stiffness ↑η is 1. Leni) Sa, bone 0
A support L'i (,1,lsu1) attached to the support tube 11 of 1
fiii' for retention between the glenoid fossa 1341- and the glenoid ball 12'
, t fr-shoi ni? The smoothness of the gap is also good, as is the fourth glenoid fossa 13).

Implant 10μ manual construction technically simple /7. Technology - (In the case of single 1J oriented fibers III 14, the fibers 1111 are other oriented fibers) manufactured and impregnated with
Inblanc l-lit i book 10? 11! 4.

The fabric 21 has 171 fibers of A and 3.1 in the direction of the fibers of 10.
Then, the fibers 17' and 22 are oriented diagonally in the bonded material 23 in the desired direction (in the desired direction).

11 pieces 10 pieces 1 knitted small 21 pieces III 2
2 i:l, the hose is at one stop diagonally to the hose il+l.'', uni 27. Mother body 1
When the hose 21 is constructed in the same manner as the hose 21, the fibers 22 in the swollen portion of the body assume a preferred orientation of 45° as the hose is unfolded. At the tip, this angle [σ decreases from approximately 15° to 20°J.

[Brief explanation of drawings]

Figure 1 is a diagram showing the hip joint implant, Figure 2 is a diagram showing the support tube and t (-), Figure 3 is a diagram showing the hose (1.1), and Figure 4 is a diagram showing the hose. This is a diagram showing the combined body of the knitted boce and 81 bodies. 10... 1m body of armor trunk, 11... Support tube, 12... Joint balls, joints. Head, 13...
glenoid fossa, 14.22... fibers, 15...
- Upper end of mother's body, 16...person M'? ＋. 17... Screw 1 thread 8... Hip bone, 20.
...Carbon fiber, tip of dowel, 21...Woven fabric, 8 hose, 23...Combined body.

Claims (10)

[Claims] (1) In the method for manufacturing a fiber-reinforced plastic bone implant substitute, after manufacturing the fiber-reinforced plastic body (10), the surface of the plastic body (10) is covered with fibers (2
1. A method for manufacturing a bone substitute implant, characterized in that the implant is at least partially treated in such a way that 0) is at least partially exposed. (2) Fiber-reinforced matrix maintained in implant type (10)
is made of fibers (14) oriented in a substantially unidirectional manner, a matrix (10) made of said fibers or individual filaments (22) and a fabric (21) impregnated with a matrix material as described above. The fibers of the base body (10) and the fibers of the fabric (21) are wrapped so as to intersect, and then the base body (10) and the fabric (21)
Fiber reinforced, characterized in that the bonding with is formed by extrusion and consists in that the surface of the implant (23) produced by matrix hardening is at least partially treated in such a way that at least partially exposes said fibers. Method of manufacturing a plastic bone substitute implant. (3) Carbon fibers pressed into a condensate of polyphenol glycidyl ether and 4,4'-diaminodiphenyl sulfone are used for the implant or matrix, and Second
A manufacturing method according to any one of the methods described in Section 1. (4) The manufacturing method according to claim 2, characterized in that the same material as the base material is used for the fabric (21). (5) A manufacturing method according to any one of claims 1 to 4, characterized in that the surface is treated mechanically, in particular by roughening the surface. (6) A manufacturing method according to any one of claims 1 to 4, characterized in that an implant is molded at the same time as the treatment for exposing the fibers. (7) A manufacturing method according to claim 6, characterized in that the surface of the implant is cut with a milling machine. (8) When the above method is applied to an intra-articular prosthesis with a diaphysis, the articular ball (12) which is fixed thereto, and the glenoid fossa (1)
3), the fibers (14) of the diaphysis (10) are oriented in one direction and are arranged approximately parallel to the surface of the diaphysis, and the support crown (11) of the diaphysis is provided as a bone support;
3) with threads (17) on the outer surface of the support crown (11
) and the lower part of the glenoid thread portion are rough exposed. (9) A manufacturing method according to claim 8, characterized in that the diaphysis (10) and the glenoid fossa (13) are manufactured from carbon fiber reinforced plastic, and the glenoid ball is manufactured from ceramic. (10) A manufacturing method according to any one of claims 2 to 9, characterized in that the diaphysis (10) is surrounded by the fabric (21).