Medical devices with echogenic coatings
US5921933A · kind A · utility
178Cited by
7References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 17, 1998 |
| Grant date | Jul 13, 1999 |
| Priority date | — |
| Expiry date | Aug 17, 2018 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M25/0108
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A medical device for insertion into human body having an echogenic portion of enhanced visibility in an ultrasound scan. The echogenic portion includes an echogenic material comprising a plastic impregnated with sonically reflective particles, the particles having an average size of less than 500 nanometers and formed of a substance having a specific gravity of 5 or greater. Preferably the particles have an average size of less than 100 nanometers and the sonically reflective particles are 5% to 40% of the echogenic material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.