Medical supplies and method of producing the same

Abstract

Metallic medical supplies include a metallic material as a base material, and a film having micro pores and/or micro unevenness on a surface of the base material, wherein the micro pores and/or micro unevennesses are impregnated with iodine or iodine compounds.

1 . Metallic medical supplies comprising a metallic material as a base material, and a film having micro pores and/or micro unevennesses on a surface of the base material, wherein the micro pores and/or micro unevennesses are impregnated with iodine or iodine compounds. 
     
     
         2 . The metallic medical supplies according to  claim 1 , wherein the micro pores and/or micro unevennesses have a density of at least 5×10 4 /mm 2  or more. 
     
     
         3 . The metallic medical supplies according to  claim 1 , wherein the film is formed by any one of electrochemical treatment, chemical treatment, thermal and/or mechanical treatment or a combination of two or more of these treatments. 
     
     
         4 . The metallic medical supplies according to  claim 3 , wherein the electrochemical treatment is anodic oxidation treatment, the chemical treatment is medicinal treatment, the thermal and/or mechanical treatment is any one of heating treatment, thermal processing treatment and mechanical processing treatment. 
     
     
         5 . The metallic medical supplies according to  claim 1 , wherein the iodine compound is polyvinyl pyrrolidone iodine, β-cyclodextrin iodine or silver iodide. 
     
     
         6 . The metallic medical supplies according to  claim 1 , wherein the metallic material is a pure metal selected from the group consisting of Ti and Co or an alloy selected from the group consisting of a Ti alloy, a Co alloy, stainless steel and a Co-Cr alloy. 
     
     
         7 . Metallic medical supplies comprising a metallic material as a base material, and a film subjected to anodic oxidation treatment having micro pores having a density of at least 5×10 4 /mm 2  on a surface of the base material, wherein the micro pores are impregnated with iodine or iodine compounds. 
     
     
         8 . The metallic medical supplies according to  claim 7 , wherein the iodine compound is polyvinyl pyrrolidone iodine, β-cyclodextrin iodine or silver iodide. 
     
     
         9 . The metallic medical supplies according to  claim 7 , wherein the film has a thickness of 3 μm or more. 
     
     
         10 . The metallic medical supplies according to  claim 7 , wherein the base material is made of any one of Ti or Ti alloy, stainless steel, and a Co-Cr alloy. 
     
     
         11 . A method of producing metallic medical supplies comprising:
 supplying a metallic material as a base material;   treating the base material by carrying out any one of electrochemical treatment, chemical treatment, thermal and/or mechanical treatment or a combination of two or more of these treatments to form a film having micro pores and/or micro unevennesses having a density of 5×10 4 /mm 2  on a surface of the base material: and   carrying out iodine-impregnation treatment to impregnate the film with iodine or iodine compounds.   
     
     
         12 . The method according to  claim 11 , wherein the electrochemical treatment is anodic oxidation treatment, the chemical treatment is medicine treatment, the thermal and/or mechanical treatment is any one of heating treatment, thermal processing treatment and mechanical processing treatment. 
     
     
         13 . The method according to  claim 12 , wherein the anodic oxidation treatment is a treatment in which an acid electrolytic bath or an alkali electrolytic bath is used as an electrolytic solution, and pulsed current having a frequency of 50 to 10000 Hz is applied to the base material in the electrolytic solution to carry out electrolysis treatment. 
     
     
         14 . The method according to  claim 12 , wherein the medicinal treatment is a treatment in which an alkali bath or acid bath having a liquid temperature of 30° C. or more is used and the base material is dipped in the alkali bath or acid bath. 
     
     
         15 . The method according to  claim 12 , wherein the mechanical processing treatment is shot blasting. 
     
     
         16 . The method according to  claim 11 , wherein the iodine compound is polyvinyl pyrrolidone iodine, β-cyclodextrin iodine or silver iodide. 
     
     
         17 . The method according to  claim 11 , wherein the base material is made of any one of Ti or Ti alloy, stainless steel, and a Co-Cr alloy. 
     
     
         18 . The metallic medical supplies according to  claim 2 , wherein the film is formed by any one of electrochemical treatment, chemical treatment, thermal and/or mechanical treatment or a combination of two or more of these treatments. 
     
     
         19 . The metallic medical supplies according to  claim 8 , wherein the film has a thickness of 3 μm or more.