JPS60256445A - Metal member for living body 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] By coating the surface of a metal body whose main component is titanium, such as titanium or titanium alloy, in different thicknesses, the color tone of the coating layer can be locally changed to indicate the implantation position and to comply with product specifications. The present invention relates to a metal member for a living body implant that is labeled.

Traditionally, product identification and product specifications have been engraved on implants whose main component is titanium, and the implantation position has been marked with engravings or protrusions unrelated to function. .

However, in recent years, many implant members that are implanted into living organisms are precise and delicate, and it has become difficult to provide markings or markings with protrusions.

Furthermore, in order to optimally respond to the individuality of the patient to whom the implant component is applied, biomedical implant components have recently become available in many detailed varieties, such as standard products with the same shape but slightly different dimensions. The size settings are worrying.

Under these circumstances, there has been an increasing desire for an implant member that has a clear mark displayed on the implant member itself by a method other than engravings or protrusions that matches the needs of individual patients.

The present invention has been made in view of the above-mentioned circumstances, and its purpose is to clearly display the implantation position and to display products using two or more colors by using a colored coating on the surface of a metal body whose main component is titanium. An object of the present invention is to provide a metal member for a living body implant that is marked with a standard mark.

The titanium-based implant member of the present invention exhibits two or more color tones due to partially changing the thickness of the coating made of titanium oxide on the surface or a metal oxide whose main component is titanium oxide. It is characterized by being forced.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. 1st
Figures (a) and (b) respectively show dental implants 1 and 10, which are a type of biological implant member, and the surface of these implants 1 and 10 is mainly composed of carbon dioxide. Coating layers 1a and 10a having a film thickness t1 ranging from 150 to 5000 A are formed and deposited, and the portions constituting the mark display M1 that can identify the interior, product specifications, etc. at a glance are coated layers 1a, 10a, and 10a is formed to be at least 10% thicker than the other surfaces...) 7°゛6. By the way, in addition to pure titanium, many titanium alloys can be used as metals constituting biological implant components such as implant 1.10. It is possible, and as this titanium alloy,
For example, Ti, -6Al-4v, Ti-5AI
! -2,5Sn, 'ri-6Al-6V -2Sn,
'ri, -tsM.

-5Zr etc. These metal materials are used to cast into the required shape for Implant 1.10, etc.

The desired shape is formed through forging, cutting, etc.

The surface of the implant 1.10 made in this way is coated with titanium oxide or a lant 1.10 whose main component is titanium oxide. a
As shown in Fig. 2, the color exhibited by (2) is due to the light ray 1 reflected on the surface of the coating layer 1a and the reflected light ray A passing through the coating layer la to the surface of the metal body forming the implant 1. Indicates the hue (interference color) due to interference with the reflected light ray B, which is (sky blue when the thickness of the layer 1a is 500 OA, golden yellow when the thickness is 800 to 900 Å, and 200 OA).
0 X is pink, 25oo A is reddish-purple, 3
500 can be prepared arbitrarily with green color. Therefore, Imbrandt 1. Coat layer 1a deposited on the surface of a[
Let the thickness of the film be tl, and let the film thickness of a portion where no mark M is formed on the same surface be tg. That is, by making the thickness of the part forming the mark display M and the other parts of the coating layer lag different, it is possible to make the part of the mark display M have a different color tone compared to the other surface. Become.

After polishing the surface of the shaped metal body using a commonly used polishing method, a series of preliminary treatments are performed, including alkaline degreasing, water washing, and chemical polishing with a mixed acid consisting of hydrochloric acid, phosphoric acid, and hydrofluoric acid. For example, it is formed to a thickness that exhibits a desired color by conventionally known anodic oxidation, vacuum evaporation, ion blating, sputtering, or the like.

The part where the mark is to be displayed is masked, but the part other than the mark display part is masked, and the oxidizing liquid I! l! After (mark M) is formed, the masked portion is removed with a release agent or a dissolving agent, and cleaning is performed.

In this manner, the metal member for a biological implant of the present invention exhibits a golden color as a whole due to the 800× coating, and the mark display exhibits a reddish-purple color due to the 2500× coating.

In addition, for example, the entire body appears pink due to the coating of 20001, and the mark is difficult to dissolve due to the coating of 500 people, so it is an excellent metal member for biological implants that also has properties such as being non-hazardous to living organisms. can be provided.

[Brief explanation of drawings]

FIGS. 1A and 1B are three-dimensional perspective views respectively showing a dental implant, which is a type of biological implant member according to an embodiment of the present invention. FIG. 2 is an enlarged sectional view taken along the line x--X of FIG. 1 (a). 1.10: Dental implants 1a, 10a: Coating layer M: Mark display Applicant Kyocera Corporation η Figure 1 (A) (T:J) Figure 2

Claims (1)

[Claims] Surface cavities of metal bodies mainly composed of titanium: 150 to 500
1. A metal member for a biological implant, characterized in that a coat layer containing 0A titanium oxide as a main component is applied, and a mark is attached by locally changing the thickness of the coat layer.