Flexible tubing, cannula and insertion needle
US11027060B2 · kind B2 · utility
1Cited by
11References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 7, 2018 |
| Grant date | Jun 8, 2021 |
| Priority date | — |
| Expiry date | Nov 1, 2038 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2025/0059
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A flexible, fluid flow tubing is configured to be kink resistant, and a medical device is configured with such kink resistant tubing. The tubing has a length L and a circular cross-section shape taken perpendicular to the length dimension. The tubing has an inside radius r and an outside radius R, wherein L/R≥34.8, and wherein R/r≥1.5. The tubing may be made of a polyether block amide (PEBA) or other thermoplastic elastomer (TPE). The tubing may be received in a channel of a hollow needle, wherein the needle is slideable in the axial dimension relative to the tubing, to selectively slide off of at least a portion of the tubing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.