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Title:
MEDICAL INSTRUMENT AND PRODUCTION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2021/033764
Kind Code:
A1
Abstract:
The present invention provides a medical instrument that exhibits excellent lubricity. This medical instrument has: a base layer; an adhesive layer that is formed on at least a portion of the base layer, and that contains a hydrophilic copolymer (1) including a constituent unit derived from a polymerizable monomer (A) having a sulfobetaine structure, a constituent unit derived from a polymerizable monomer (B) having at least one group selected from the group consisting of a sulfonic acid group (-SO3H), a sulfuric acid group (-OSO3H), and a sulfurous acid group (-OSO2H), and groups of salts thereof, and a constituent unit derived from a polymerizable monomer (C) having a photoreactive group; and a surface-lubricating layer that is formed on at least a portion of the adhesive layer, and that contains a polymer including a constituent unit derived from acrylamide, and a hydrophilic copolymer (2) including a constituent unit derived from a polymerizable monomer (A') having a sulfobetaine structure, a constituent unit derived from a polymerizable monomer (B') having at least one group selected from the group consisting of a sulfonic acid group (-SO3H), a sulfuric acid group (-OSO3H), and sulfurous acid group (-OSO2H), and groups of salts thereof, and a constituent unit derived from a polymerizable monomer (C') having a photoreactive group.

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Inventors:
KURAMOTO MASANORI (JP)
Application Number:
PCT/JP2020/031640
Publication Date:
February 25, 2021
Filing Date:
August 21, 2020
Export Citation:
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Assignee:
TERUMO CORP (JP)
International Classes:
C08F220/38; A61L29/06; A61L29/08; A61L29/12; A61L29/14; A61L31/06; A61L31/10; A61L31/12; A61L31/14
Domestic Patent References:
WO2018038063A12018-03-01
WO2014204407A12014-12-24
WO2010113632A12010-10-07
WO2020004385A12020-01-02
WO2018038063A12018-03-01
Foreign References:
JP2004357826A2004-12-24
US20190185776A12019-06-20
JP2019151583A2019-09-12
Other References:
A. LASCHEWSKY, POLYMERS, vol. 6, 2014, pages 1544 - 1601
See also references of EP 4006069A4
Attorney, Agent or Firm:
HATTA & ASSOCIATES (JP)
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