Length detection system for biopsy device
US8992440B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 26, 2011 |
| Grant date | Mar 31, 2015 |
| Priority date | — |
| Expiry date | Oct 14, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2001/315
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A biopsy device includes a handle unit, a hollow needle comprised in a disposable unit, which is releasably attached to the handle unit, and a sample-receiving device, which is movable in the hollow needle between two positions. Tissue is severed when the sample-receiving device is in a first one of the positions, and the severed tissue sample is ejected from the sample-receiving device in a second one of the two positions. A control system is provided for controlling movement of the sample-receiving device and for arresting the sample-receiving device in the second position. The distance between the two positions and/or a length of the hollow needle may be detectable in a calibration cycle, which is automatically initiated upon attachment of the disposable unit to the handle unit. The disposable unit may include electronic memory device for communicating with the control system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.