The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 24, 2021
Filed:
Jul. 24, 2019
Terumo Kabushiki Kaisha, Tokyo, JP;
Takashi Ito, Shizuoka, JP;
TERUMO KABUSHIKI KAISHA, Tokyo, JP;
Abstract
A medical instrument is disclosed having a structure capable of preventing liquid circulation between an inner layer side and an outer layer side of a peripheral wall portion. The medical instrument includes a main body portion in which a center hole and a radially outward space are partitioned by a tubular peripheral wall portion. The peripheral wall portion includes at least a first layer on which a hydrophilic member, in which a hydrophilic coating is formed on a first base portion, is disposed and a second layer on which a hydrophobic member, in which a hydrophobic coating is formed on a second base portion, is disposed. The peripheral wall portion is configured by the first layer and the second layer being stacked along a radial direction. As a result of swelling of the hydrophilic coating, the adjacent hydrophilic members come into contact with each other.