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:
Jun. 29, 1999
Filed:
Aug. 05, 1997
Applicant:
Inventor:
David Curtis Dillow, Cupertino, CA (US);
Assignee:
FemRx, Inc., Sunnyvale, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61M / ;
U.S. Cl.
CPC ...
604167 ; 604171 ; 606185 ;
Abstract
A surgical valve prevents loss of insufflation gas (or the like) when no instrument traverses the valve lumen. The valve is suitable for passing surgical implements distally, and for passing enlarged bodies (such as large morcels of severed tissue) proximally. A first set of valve segments angle together along a slit, similar to a duck-bill valve. A second set of valve segments angle outwardly distally, the second segments often having a passage so that distal pressure pushes the first segments together along the slit.
Published as: