Surgical access apparatus and method
US7481765B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 5, 2005 |
| Grant date | Jan 27, 2009 |
| Priority date | — |
| Expiry date | Oct 31, 2025 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/3492
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A surgical access device includes a single valve forming a seal with the body wall and providing an access channel into a body cavity. The valve has properties for creating a zero-seal in the absence of an instrument and an instrument seal with instruments. The valve can include a gel comprised of an elastomer and oil providing elongation greater than 1000 percent and durometer less than 5 Shore A. The single valve can be used as a hand port where the instrument comprises the arm of a surgeon. A method for making the surgical access device includes combining a gelling agent with oil, preferably in a molding process. A method for using the device includes creating an opening with the instrument. An organ can be removed from the body cavity through the single valve to create an organ seal while the organ is addressed externally of the body cavity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.