Biopsy needle design
US10188422B2 · kind B2 · utility
1Cited by
3References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 25, 2017 |
| Grant date | Jan 29, 2019 |
| Priority date | — |
| Expiry date | May 25, 2037 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M25/065
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A biopsy needle assembly includes a mandrel within a cannula, the needle assembly is fired into a target tissue to obtain a tissue sample using a force source imparting movement to the needle assembly. The mandrel and cannula design, and force source characteristics minimize needle deflection, and allow the needle assembly to excise extended length tissue samples. The mandrel forms tissue retention ridges within a tissue sample region to reduce fragmentation of the tissue sample.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.