Patent · US Expired

Medical instrument

US6830174B2 · kind B2 · utility

2,685Cited by

133References

30Claims

0Family size

Assignee

Cerebral Vascular Applications, Inc. · US

Inventors

Richard A. Hillstead · Miami, US
Bryan D. Knodel · Cincinnati, US

Key dates

Filing date	Aug 29, 2001
Grant date	Dec 14, 2004
Priority date	—
Expiry date	Dec 31, 2021

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61B2017/2927
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A hydraulically actuated medical instrument includes an elongated shaft having proximal and distal ends, a hydraulically actuated end effector at the distal end of the shaft and a fluid flow path extending through the shaft to the end effector. The end effector may be directly manually operated by way of a handle located at the proximal end of the shaft or remotely, for example, via robotic controller. Articulation joints may be provided along the shaft, between the shaft and end effector or handle, or elsewhere. The hydraulic actuation of the present invention permits multiple axis instrument articulation, miniaturization and simplified instrument fabrication.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.