Biopsy needle
US12096921B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 15, 2023 |
| Grant date | Sep 24, 2024 |
| Priority date | — |
| Expiry date | Feb 15, 2043 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/320064
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A biopsy needle for collecting a tissue specimen includes an outer cannula and an inner tube received within the outer cannula. A snare coil is attached between the inner tube and the outer cannula and is configured to wind down when the inner tube rotates in a first direction relative to the outer cannula. The outer cannula is fixedly coupled to a needle holder that is coupled to and moves with a movable base that is axially movable within the handle housing. An inner driven structure (curvilinear part) is configured to selectively engage the movable base and travel therewith in a first stage of operation and in a second stage of operation in which the inner driven structure is disengaged from the movable base, the inner driven structure is driven along the movable base which is held in a stationary position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.