Hybrid cannula and methods for manufacturing the same
US9398924B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 30, 2015 |
| Grant date | Jul 26, 2016 |
| Priority date | — |
| Expiry date | Jul 30, 2035 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/7548
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A hybrid cannula may comprise a rigid portion overmolded with a flexible portion. The rigid portion at its proximal end may comprise a rigid flange for preventing the proximal end of the hybrid cannula from being pushed through the portal. The flexible portion may comprise a dam within the passage of the hybrid cannula, the dam defining interior spaces thereof between the proximal and distal ends of the hybrid cannula. The flexible portion's distal end may comprise a variety of features extending therefrom, including a flange and/or a cannulated tip. The flexible portion's proximal end may further comprise a membrane to prevent liquid from projecting during insertion of a tool into the dam and/or removal of the tool from the dam. The hybrid cannula can be useful in minimally invasive surgical procedures, including arthroscopic and endoscopic surgeries.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.