Medical tube
US9295763B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 8, 2012 |
| Grant date | Mar 29, 2016 |
| Priority date | — |
| Expiry date | Aug 8, 2032 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04C2270/041
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention provides a medical tube mainly comprising a thermoplastic resin wherein the surface contacting the blood has been subjected to a heparinizing treatment and wherein quality defect due to whitening and oil defect is reduced.According to the present invention, there is provided a medical tube wherein an antithrombotic material is coated on the inner surface of a tube prepared by a melt extrusion molding of a composition comprising a thermoplastic resin and a plasticizer, characterized in that the difference (ΔL) between the brightness of the medical tube before coating and the brightness of the medical tube after coating measured in accordance with JIS Z 8722 is 1 or less.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.