Medical lubricating member, medical device using medical lubricating member, and method of producing medical lubricating member
AssigneeFUJIFILM Corporation
InventorsToshihide Yoshitani, Nobuharu Takahashi
Life of this patent
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Abstract
Provided are a medical lubricating member including a silicone base material, and a lubricating coated film which is laminated on at least one surface of the silicone base material, in which the silicone base material contains a reactive functional group in the surface on which the lubricating coated film is laminated, and the lubricating coated film is a film formed of a composition containing a hydrophilic polymer and polyisocyanate; a medical device using the medical lubricating member; and a method of producing the medical lubricating member.
Claims15
A medical lubricating member comprising:
- a tubular silicone base material;
- an adhesive layer which is provided coextensively on at least one surface of the tubular silicone base material;
- and
- a lubricating coating which is formed on a surface of the adhesive layer opposite to a surface where the tubular silicone base material is in contact,
- wherein the adhesive layer is a layer of a polymer having a polysiloxane structure,
- the polymer having a polysiloxane structure has a structural unit represented by Formula (1) below and at least one of a structural unit represented by Formula (2) below, a structural unit represented by Formula (3) below, and a structural unit represented by Formula (4) below,
- the lubricating coating bonds with a reactive functional group contained in the surface of the adhesive layer, and
- the lubricating coating is formed of a composition containing a hydrophilic polymer and polyisocyanate,
- wherein R1 to R6 represent a hydrogen atom or an organic group, L1 represents a single bond or a divalent linking group, and n1 is an integer of 3 to 10000,
- wherein R7 and Ra represent a hydrogen atom or an organic group,
- wherein R8, Rb1, and Rb2 represent a hydrogen atom or an organic group, and
- wherein R9 represents a hydrogen atom or an organic group, and Rc1 to Rc5 represent a hydrogen atom, a halogen atom, or an organic group.
A method of producing a medical lubricating member, comprising:
- a step of coating an adhesive layer coextensively on a tubular silicone base material, the adhesive layer containing a reactive functional group in a surface thereof,
- a step of coating the adhesive layer with a lubricating composition containing a hydrophilic polymer and polyisocyanate;
- and
- a step of heating the composition at 100° C. or higher,
- wherein the lubricating composition bonds with the reactive functional group,
- wherein the adhesive layer is a layer of a polymer having a polysiloxane structure,
- the polymer having a polysiloxane structure has a structural unit represented by Formula (1) below and at least one of a structural unit represented by Formula (2) below, a structural unit represented by Formula (3) below, and a structural unit represented by Formula (4) below,
- wherein R1 to R6 represent a hydrogen atom or an organic group, L1 represents a single bond or a divalent linking group, and n1 is an integer of 3 to 10000,
- wherein R7 and Ra represent a hydrogen atom or an organic group,
- wherein R8, Rb1, and Rb2 represent a hydrogen atom or an organic group, and
- wherein R9 represents a hydrogen atom or an organic group, and Rc1 to Rc5 represent a hydrogen atom, a halogen atom, or an organic group.
Dependencies are inferred from the claim text.