Cannula assembly having conductive cannula
US5387196A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 19, 1992 |
| Grant date | Feb 7, 1995 |
| Priority date | — |
| Expiry date | May 19, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S128/908
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A conductive cannula assembly is disclosed to dissipate possible, accumulated electrical charges through body tissue. The cannula assembly includes cannula housing means and cannula means formed of a material having an electrical conductivity value which is at least fifty percent the conductivity value of silver. The invention also includes cannula assembly accessories formed of a material having an electrical conductivity value which is at least fifty percent the conductivity value of silver. The invention further provides a method for guiding endoscopic instruments into body tissue utilizing the cannula assembly and the cannula assembly accessories of the present invention.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.