US 11,655,587 B2
Medical hollow tube
Seiichi Kashimura, Tokyo (JP); Masamichi Kishi, Tokyo (JP); Takanobu Watanabe, Tokyo (JP); Kimika Kudo, Tokyo (JP); and Masashi Arai, Tokyo (JP)
Assigned to PROTERIAL, LTD., Tokyo (JP)
Filed by Hitachi Metals, Ltd., Tokyo (JP)
Filed on Dec. 22, 2021, as Appl. No. 17/559,576.
Application 17/559,576 is a continuation of application No. 16/411,709, filed on May 14, 2019, granted, now 11,286,615.
Claims priority of application No. JP2018-095112 (JP), filed on May 17, 2018; application No. JP2018-162773 (JP), filed on Aug. 31, 2018; and application No. JP2019-082944 (JP), filed on Apr. 24, 2019.
Prior Publication US 2022/0112657 A1, Apr. 14, 2022
Int. Cl. D07B 5/00 (2006.01); A61L 29/04 (2006.01); A61L 29/08 (2006.01); A61L 29/12 (2006.01); A61L 29/14 (2006.01); D07B 1/16 (2006.01); A61M 25/00 (2006.01)
CPC D07B 5/006 (2015.07) [A61L 29/042 (2013.01); A61L 29/085 (2013.01); A61L 29/126 (2013.01); A61L 29/14 (2013.01); A61M 25/0045 (2013.01); D07B 1/16 (2013.01); A61B 2562/222 (2013.01); A61L 2420/02 (2013.01); A61L 2420/08 (2013.01); D07B 2201/2087 (2013.01); D07B 2201/2088 (2013.01); D07B 2201/2092 (2013.01); D07B 2205/2082 (2013.01); D07B 2501/2084 (2013.01); D07B 2801/18 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A hollow tube for medical use, comprising:
a hollow tube body; and
a coating film covering at least one of an inner surface and an outer surface of the hollow tube body, the coating film adhering to the hollow tube body,
wherein a static friction coefficient of the surface of the coating film is 0.5 or less,
wherein an adhesion strength between the hollow tube body and the coating film is 0.30 MPa or more,
wherein a parent material of the coating film is silicone rubber and is produced by curing an addition reaction type coating agent.