Expandable and automatically retractable collar and method of use thereof
US11672921B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 13, 2018 |
| Grant date | Jun 13, 2023 |
| Priority date | — |
| Expiry date | Mar 9, 2040 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2005/3267
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A flexible collar including a rigid body having a cylindrical outer surface and a cylindrical inner surface concentrically aligned with respect to a common longitudinal axis, a top surface, and a bottom surface, the inner surface defining a bore from the top surface to the bottom surface, and each of the top and bottom surfaces having an endless pathway confined to a respective plane and circumscribing a respective edge of the inner surface. The flexible collar further includes at least one accordion region having a plurality of pivots, at least two of the pivots being radially spaced apart from the longitudinal axis at different distances, and the accordion region being configured to radially deform.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.