Patent · US Active

Vessel sealer and divider with knife lockout

US9113941B2 · kind B2 · utility

3Cited by

104References

10Claims

0Family size

Assignee

Covidien LP · US

Inventors

John J. Kappus · Denver, US
Thomas J. Gerhardt · Berlin, DE
Wayne Siebrecht · Golden, US
Larry Johnson · Victor, US

Key dates

Filing date	Apr 10, 2013
Grant date	Aug 25, 2015
Priority date	—
Expiry date	Sep 5, 2033

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61B2018/1455
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

An endoscopic forceps includes a housing having a shaft attached thereto that supports a pair of jaws disposed at a distal end thereof. A drive assembly having a drive shaft with a proximal end is operable to move the jaws relative to one another from an open to closed positions. A knife assembly is operable to advance a knife through tissue disposed between the jaws and includes a flange disposed thereon. A knife lockout is included that has a flange configured to engage the proximal end of the drive shaft and a lockout arm configured to engage the flange of the knife assembly to prevent movement thereof. Movement of the jaws to the closed position causes the proximal end of the drive shaft to engage the flange on the lockout which causes the lockout arm to disengage the flange on the knife assembly to permit advancement of the knife.

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