Retractable brush for use with endoscope for brush biopsy
US6676609B1 · kind B1 · utility
38Cited by
2References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 17, 2002 |
| Grant date | Jan 13, 2004 |
| Priority date | — |
| Expiry date | Dec 17, 2022 |
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 brush passes through the endoscope, the brush moves against the tissue in order to remove cells from an area under examination. The brush is withdrawn from the endoscope and sample tissue is removed from said brush for examination after it is withdrawn from the endoscope.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.