Title:
METHOD FOR MANUFACTURING MEDICAL DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/235275
Kind Code:
A1
Abstract:
An objective of the present invention is to provide a method for easily manufacturing a hydrophilized medical device of superior durability. In order to achieve the abovementioned objective, a method for manufacturing a medical device according to the present invention comprises a step for heating an aqueous package fluid, wherein, in the heating step, the aqueous package fluid contains one or more types of hydrophilic polymer, heating is performed with a substrate of the medical device at least partially in contact with the aqueous package fluid, and the following conditions (a) through (c) are all met. (a) The hydrophilic polymer is a (meth)acrylamide (co)polymer comprising two substituents comprising two or more carbon atoms on a nitrogen atom. (b) The mass% concentration of the hydrophilic polymer in the aqueous package fluid is in a range of 0.0001–30 mass%. (c) The pH of the aqueous package fluid after the heating step is in a range of 6.1–8.0.
Inventors:
KITAGAWA RUMIKO (JP)
NAKAMURA MASATAKA (JP)
NAKAMURA MASATAKA (JP)
Application Number:
PCT/JP2020/016679
Publication Date:
November 26, 2020
Filing Date:
April 16, 2020
Export Citation:
Assignee:
TORAY INDUSTRIES (JP)
International Classes:
G02C7/04; A61L2/04; A61L12/04; A61L27/16; A61L27/18; A61L27/34; A61L27/50; A61L27/52; A61L27/54; A61L29/04; A61L29/06; A61L29/14; A61L31/04; A61L31/06; A61L31/14; G02C13/00
Domestic Patent References:
| WO2017169873A1 | 2017-10-05 | |||
| WO2018073702A1 | 2018-04-26 | |||
| WO2017146102A1 | 2017-08-31 | |||
| WO2013024799A1 | 2013-02-21 | |||
| WO2013024800A1 | 2013-02-21 |
Foreign References:
| JP2011197196A | 2011-10-06 | |||
| JP2011512546A | 2011-04-21 | |||
| JP2003535626A | 2003-12-02 | |||
| JP5154231B2 | 2013-02-27 | |||
| JP2010088858A | 2010-04-22 | |||
| JP2014533381A | 2014-12-11 |
Other References:
See also references of EP 3944003A4
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