Patent · US Active

Sheath for surgical instrument

US9089351B2 · kind B2 · utility

15Cited by

16References

23Claims

0Family size

Assignee

INTUITIVE SURGICAL OPERATIONS, INC. · US

Inventors

William J. Park · Sunnyvale, US
S. Christopher Anderson · San Francisco, US
Thomas G. Cooper · Menlo Park, US
Matthew R. Williams · Walnut Creek, US

Key dates

Filing date	Jan 11, 2013
Grant date	Jul 28, 2015
Priority date	—
Expiry date	Feb 1, 2033

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61B2090/0813
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A surgical apparatus includes a shaft having a proximal end and a distal end, an end effector coupled to the distal end of the shaft, and a sheath disposed on an external surface of the instrument shaft. The sheath includes a material that is permeable to gas so as to permit equalization of a pressure differential after insertion of the sheath and shaft into an environment at a surgical insufflation gas pressure. The pressure differential is between an insufflation gas pressure and an initial pressure lower than the insufflation gas pressure.

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