Instrument seal with inverting shroud
US8075530B2 · kind B2 · utility
74Cited by
2References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 20, 2009 |
| Grant date | Dec 13, 2011 |
| Priority date | — |
| Expiry date | Mar 20, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/3464
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A surgical access device comprising an instrument access channel extending through an instrument seal and a shroud comprising an inverting region disposed distally of the instrument seal exhibits improved tear-resistance of the instrument seal from instrument manipulation, for example, instrument withdrawals. Some embodiments of the inverting region invert through the instrument seal on instrument withdrawal. Some embodiments of the inverting region induce at least a portion of the instrument seal itself to invert on instrument withdrawal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.