Dilator with peel force reducing structure
US5611333A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 15, 1995 |
| Grant date | Mar 18, 1997 |
| Priority date | — |
| Expiry date | Dec 15, 2015 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F5/08
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A dilator formed with a truss with a pair of spaced-apart end surfaces that provides a restoring force therebetween if forced toward one another, this restoring force provided by a resilient band extending between the opposite ends of the truss with a plurality of notches located at each of the ends thereof. The notches exceed at least a third of the thickness of the band and may comprise a separation at the location thereof between selected portions of said first resilient band with this separation surrounded by a corresponding separation edge thereabout intersecting a first surface of the first resilient band. A second and similar band may also be provided in the truss.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.