Retractable brush for use with endoscope for brush biopsy
US6494845B2 · kind B2 · utility
22Cited by
8References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 4, 2001 |
| Grant date | Dec 17, 2002 |
| Priority date | — |
| Expiry date | May 4, 2021 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/320012
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A retractable brush structure is attached to a cylindrical rigid rod which in the closed position passes through a channel in an endoscope. After the closed brush passes through the endoscope, the brush is opened and moves transversely to the tissue in order to remove cells from an area under examination. The brush is closed and withdrawn from the endoscope and sample tissue is removed from said brush for examination after it is withdrawn from the endoscope.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.