Ultrasound biopsy needle
US5490521A · kind A · utility
149Cited by
12References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 16, 1994 |
| Grant date | Feb 13, 1996 |
| Priority date | — |
| Expiry date | Aug 16, 2014 |
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.