Controlled orifice sampling needle
US7179232B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 27, 2003 |
| Grant date | Feb 20, 2007 |
| Priority date | — |
| Expiry date | Aug 25, 2024 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2010/0258
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A bone marrow sampling device is provided, including an outer cannula having a sidewall with a plurality of openings and a distal tissue penetrating tip. An inner cannula is positioned within the outer cannula, and includes a sidewall with at least one opening. Selective relative movement of the inner cannula and the outer cannula enables the device to be configured in multiple bone marrow sampling modes in which the at least one opening in the sidewall of the inner cannula is aligned with different openings in the sidewall of the outer cannula such that bone marrow can be drawn into the inner lumen of the inner cannula from different radial and longitudinal positions external to the sidewall of the outer cannula without the need to reposition the outer cannula.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.