Biopsy device
US10687791B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 24, 2017 |
| Grant date | Jun 23, 2020 |
| Priority date | — |
| Expiry date | Nov 10, 2038 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2005/3123
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A biopsy device includes a cannula that defines a tissue chamber configured to receive a tissue sample from a patient. A pressure chamber includes a body having a distal end and a proximal end. The proximal end has an inlet coupled in fluid communication with the cannula. The body has a first recessed area proximate the proximal end, wherein the first recessed area is configured to release positive pressure within the pressure chamber. The body has a second recessed area proximate the distal end, wherein the second recessed area is configured to release negative pressure within the pressure chamber. A piston is movably received in the body and configured to move over the first recessed area to release the positive pressure and configured to move over the second recessed area to release the negative pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.