Non-seeding biopsy device and method
US7425202B2 · kind B2 · utility
8Cited by
38References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 5, 2004 |
| Grant date | Sep 16, 2008 |
| Priority date | — |
| Expiry date | Mar 12, 2024 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/3435
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Tissue biopsy is performed through a central passage of a cannula covered with a protective sleeve. The protective sleeve is attached at one end to a location at or near a distal end of the cannula. After the biopsy procedure is completed, the cannula is withdrawn so that its exterior slides through the sleeve. In this way, the trailing edge of the sleeve is invaginated within the proximal portions of the itself to envelop the sleeve exterior and reduce the risk of inadvertent tumor cell seeding.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.