Biopsy needle for use with spring-operated actuating mechanism
US4917100A · kind A · utility
Inventor
Key dates
| Filing date | May 8, 1989 |
| Grant date | Apr 17, 1990 |
| Priority date | — |
| Expiry date | May 8, 2009 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2010/0208
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A biopsy needles for use with a spring-operated actuating mechanism. The biopsy needle has a slide attached to the proximal end of its cannula and having an elongated slot extending longitudinally away from the cannula and a laterally projecting segment at the end away from the cannula. The biopsy needle also has a slide attached to the proximal end of its obturator and having a laterally projecting outer segment that extends on the opposite side from the laterally projecting segment of the cannula slide. The laterally projecting segment of the obturator slide is offset from the laterally projecting segment of the cannula slide in the direction toward the cannula and obturator when the obturator slide is at the end of the slot in the cannula slide away from the cannula and the obturator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.