Surgical access apparatus and method
US8105234B2 · kind B2 · utility
73Cited by
635References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 27, 2009 |
| Grant date | Jan 31, 2012 |
| Priority date | — |
| Expiry date | Jun 14, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/3492
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A surgical access device includes a single valve that forms a seal with the body wall and provides an access channel into a body cavity. The valve has properties for creating a zero seal in the absence of an instrument as well as an instrument seal with instruments having a full range of instrument diameter. The valve can include a gel and preferably an ultragel comprised of an elastomer and an 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, thereby providing hand access into the cavity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.