KR970009903A - Method and apparatus for gas treatment - Google Patents

Abstract

Method and apparatus for uniformly and efficiently treating a product in a gas atmosphere. The fastening device provides a plurality of point contact support locations for supporting the product during processing. Fixation devices and treatment methods are used to improve the biological suitability and hydrophilicity of the surface, and in particular to plasma treatment of contact lenses.

[Representative diagram] First drawing

Description

Method and apparatus for gas treatment

Since this is a trivial issue, I did not include the contents of the text.

FIG. 1 is a plan view of one embodiment of a fixture of the present invention with a contact lens to be supported; FIG.

Claims (31)

A fixing device for uniformly and efficiently supporting a product to be treated in a gas processing atmosphere, said support device comprising a support structure providing a plurality of point-contact support positions for products to be treated, said plurality of point- Is sufficient to support the product to be treated, but does not block contact between the product and the gas atmosphere to such an extent that it interferes with sufficiently uniform processing of the product in a gaseous atmosphere. The securing apparatus according to claim 1, wherein the plurality of point-contact support positions are three or more. The fixing device according to claim 1, wherein the plurality of point contact support positions are four. The securing device according to claim 1, characterized in that the support structure comprises a wire. 2. The securing device according to claim 1, wherein the point-contact support positions are isolated by a sufficiently uniform distance relative to one another. The fixing device according to claim 1, wherein the product is an ophthalmic lens. The fixing device according to claim 6, wherein the lens is a contact lens. 2. The apparatus of claim 1, wherein the article is an ophthalmic lens and the support structure comprises: (a) a peripheral support frame defining an interior aperture; (b) at least one support member attached to the frame and extending inwardly from the frame . The securing apparatus according to claim 8, wherein the peripheral support frame is disposed on the product support frame and extends beyond the edge of the product if it is sufficiently centered within the frame. The securing apparatus according to claim 8, wherein said support member is a wire or polymer line. The apparatus of claim 1, wherein the article is an ophthalmic lens and the support structure comprises: (a) a peripheral support frame defining an interior aperture; (b) a first support member attached at two locations at an end opposite the frame; And a second support member attached at two different locations at opposite ends of the second support member. 12. Anchoring device according to claim 11, wherein the first and second members intersect at an essentially center of the frame. 12. The fastening device according to claim 11, wherein said first and second members are not crossed. 12. An anchoring device according to claim 11, wherein the first and second members are polymer lines essentially orthogonal to each other or wires that are actually straight. 2. The anchoring device according to claim 1, wherein the support structure is made of a non-ferromagnetic material. 16. The anchoring device according to claim 15, wherein the non-ferromagnetic material is selected from the group consisting of quartz, fiber optic, and slender polymer lines. 17. The holding device according to claim 16, wherein the non-ferromagnetic material is an optical cable. 17. The anchoring device of claim 16, wherein the non-ferromagnetic material is a thin polymeric line. The securing device according to claim 1, wherein the securing device blocks about 1% or less of the support surface of the article. 20. The anchoring device of claim 19, wherein the securing device blocks a support surface of about 0.1% or less of the product. The fixing device according to claim 1, wherein the gas atmosphere is a plasma gas. 2. The apparatus of claim 1, wherein the plurality of point contacts are three or more, and the product is an ophthalmic lens, the support structure comprising: (a) a frame; (b) a non-ferromagnetic first wire attached to the frame; And a non-ferromagnetic second wire attached to the frame or the first wire so as to intersect the second wire. The fixing device according to claim 1, wherein the processing method is a coating of a product. 24. The anchoring device according to claim 23, wherein the coating is a polymer coating. A method for uniformly and efficiently treating a product in a gaseous atmosphere, comprising the steps of: (a) providing a product to be treated; (b) providing a support structure for the product; Placing the product on a support structure so as to be supported on the support structure; and < RTI ID = 0.0 > (iii) < / RTI > exposing the product to the process gas for a period of time and conditions to provide a sufficiently uniform surface treatment Fixing device. 26. The fixation device of claim 25, wherein the article is a contact lens. 26. A holding device according to claim 25, wherein the process gas is a plasma gas. 26. The anchoring device according to claim 25, wherein the treatment method produces a polymer coating on the article. 26. An ophthalmic lens comprising the processing method of claim 25. The ophthalmic lens according to claim 29, wherein the ophthalmic lens is a contact lens. 30. An ophthalmic lens according to claim 29, wherein the contact lens comprises a polymer containing siloxane groups. ※ Note: It is disclosed by the contents of the first application.