Cannula and sizing insertion method
USRE42525E1 · kind E1 · reissue
Assignee
Inventor
Key dates
| Filing date | Jun 10, 2002 |
| Grant date | Jul 5, 2011 |
| Priority date | — |
| Expiry date | Jun 10, 2022 |
Classification
- Technology area (CPC —)General
Abstract
A relatively inexpensive cannula is sized by including indica on a cannulated dilator that is used to measure the depth of a body cavity, and in one embodiment with the use of a cuttable fixture inserted into an initially enlarged dilator retractor made from a cuttable material the excess of the dilator retractor is snipped by a commercial cutter. A tool engaging the end of the cannulated dilator provides leverage on the cannulated dilator for rotation as it is forced into the body cavity, a pusher tool provides leverage on the dilator retractor for inserting the dilator retractor into the body cavity. A clamp that fits the top of the dilator retractor serves to support the dilator retractor through an arm to a rigid structure. In an alternate embodiment one of a series of sized dilator retractors are selected commensurate with the measurement attained by the scaled cannulated dilator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.