Ultrasound biopsy needle
US5820554A · kind A · utility
172Cited by
14References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 24, 1997 |
| Grant date | Oct 13, 1998 |
| Priority date | — |
| Expiry date | Mar 24, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2090/3925
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An echogenic medical needle is disclosed which comprises a tubular cannula body, a stylet received within the cannula body, and an echogenicity enhancement within the cannula for improved ultrasound imaging. Preferably, the echogenicity enhancement is on the stylet and comprises a series of annular grooves about the stylet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.