Length detection system for biopsy device
US9872672B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 13, 2015 |
| Grant date | Jan 23, 2018 |
| Priority date | — |
| Expiry date | Mar 13, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2001/315
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A disposable unit for a biopsy device includes a hollow needle configured to define a longitudinal path. A sample-receiving device having a cavity is configured to move in the hollow needle along the longitudinal path between an extended position and a retracted position. A transport device is configured to move the sample-receiving device in the hollow needle between the extended position and the retracted position. The transport device includes a bendable elongate element having a proximal portion and a distal end, the distal end being connected to the sample-receiving device. The bendable elongate element has a tooth surface that is engaged by a rotatable gear. A coiling device is configured to coil the proximal portion of the bendable elongate element as the sample-receiving device is moved linearly along the longitudinal path from the extended position to the retracted position by operation of the rotatable gear.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.