Polymeric implements for torque transmission
US6436056B1 · kind B1 · utility
197Cited by
29References
51Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 13, 1998 |
| Grant date | Aug 20, 2002 |
| Priority date | — |
| Expiry date | Jul 13, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/7542
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Implements, particularly medical instruments, formed at least in part of elongated polymer members, exhibit high torque fidelity after processing with tension, heat, and twisting. The processing orients the polymer in generally helical paths so that torque imposed at the proximal end can be transmitted to the distal end without substantial whipping, even if the implement follows a long and tortuous pathway. Applications include medical guidewires, catheters, and driveshafts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.