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:
Apr. 05, 1994
Filed:
Nov. 23, 1992
David S Johnson, Stamford, CT (US);
United States Surgical Corporation, Norwalk, CT (US);
Abstract
A pneumoperitoneum needle comprises a lumen defining a passageway through which pneumoperitoneum gases may pass to the peritoneal cavity, a handle mechanism attached to a proximal end portion of the lumen and a filtration unit housed within the handle mechanism for filtering the pneumoperitoneum gases to be passed through the lumen. The filtration unit preferably includes a hydrophobic filter fabricated from a polytetrafluoroethylene material having a pore size ranging in value from about 0.2 to 0.5 microns. In an alternative embodiment, the filtration unit is incorporated within the handle mechanism of a Veress-type needle.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile