Hand actuated tetherless biopsy device with scissors grip
US8162850B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 16, 2008 |
| Grant date | Apr 24, 2012 |
| Priority date | — |
| Expiry date | Jan 21, 2030 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M1/79
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A biopsy device includes a body having a cannula, a cutter positioned at least partly within the cannula, a tissue collection chamber, and a vacuum source. In one example, the biopsy device includes a cutter loader for rotating the cutter into a loaded position (e.g., open position). A trigger is engaged with a portion of the cutter loader and may be activated to allow the cutter to rotate back to a closed position. During this rotation, the cutter severs a tissue sample, which may thereafter be drawn through the cutter lumen into the tissue collection chamber under the influence of a vacuum created by the vacuum source. The vacuum source includes a piston configured to be operated by squeezing a scissors grip. A user may apply a single stroke or successive strokes to the piston to produce the vacuum.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.