The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 18, 1980
Filed:
Nov. 13, 1978
Siegfried Bauer, Heidelsheim, DE;
Manfred Boebel, Oetisheim, DE;
Richard Wolf GmbH, Knittlingen, DE;
Abstract
A trocar sleeve of the kind having a widened part forming a housing between the distal portion of the sleeve and its proximal portion, which latter extends from a plug for the widened housing part, and a normally closed ball valve in the widened housing part openable by a trocar passing through the sleeve. The widened part forming the housing receives an insert of U-shaped cross section secured to the plug to stress an inserted sealing gasket of deformation-resistant plastics material which provides a valve seating. The space in the U formed by the insert forms a space for the ball of the ball valve to move in, and the ball, is connected to a shaft insertable in the insert and carrying a tangentially loaded helical spring.