Method and collection device for Barrett's esophagus cells
US7108661B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 7, 2001 |
| Grant date | Sep 19, 2006 |
| Priority date | — |
| Expiry date | Nov 22, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2090/062
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method and apparatus for obtaining esophageal cells for diagnostic purposes. A distal end of a support body is inserted in a patient's stomach via the esophagus and mouth. A balloon at the distal support body end is inflated. The support body is withdrawn until the balloon engages the sphincter. A support body location is marked that is a predetermined distance from the patient's dental arch. The balloon is deflated and the support body is withdrawn so that the marked location is adjacent the patient's dental arch. The support body is withdrawn a second predetermined distance and a second support body location is marked. A cell collecting element is deployed from within the distal end of the support body. The support body is reciprocated with the cell collecting element deployed so that cells from the esophagus are deposited on the cell collecting element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.