Tissue encapsulating sheath
US5217468A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 24, 1991 |
| Grant date | Jun 8, 1993 |
| Priority date | — |
| Expiry date | Oct 24, 2011 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/306
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A tissue retrieval apparatus for laparoscopic procedures includes a longitudinally extending tube having a tip end insertible into a patient. The tip end is formed to be radially expandable in response to withdrawal of tissue into the tip end of the tube. Tissue can be withdrawn into the tip end of the tube by using graspers or other devices that can be extended to engage and hold tissue. To reduce the possibility of contamination of healthy tissue, an elastic sheath is attached to cover the tip end of the tube. The elastic sheath is formed to radially expand in response to radial expansion of the tip end of the tube during withdrawal of tissue into the tip end of the tube.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.