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:
Dec. 11, 1979
Filed:
Jan. 18, 1978
Applicant:
Inventors:
William R Knepshield, Malvern, PA (US);
Jerry Polizzi, Morrisville, PA (US);
Allen H Okamoto, Ambler, PA (US);
Assignee:
KLI, Incorporated, Newtown, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61M / ;
U.S. Cl.
CPC ...
128348 ; 128347 ; 128221 ;
Abstract
Self sealing cannula automatically maintains insufflation pressure in a body cavity. A slotted elastomeric valve is positioned in the valve seat with the slot disposed over the passage. The elastomeric valve is compressed to seal the slot, thus sealing the cannula passage. A surgical instrument such as a trocar or laparoscope may be slid through the cannula passage, which remains sealed regardless of the presence or absence of the surgical instrument within the passage.
Published as: