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. 14, 1992
Filed:
Jan. 15, 1991
Applicant:
Inventors:
Ronald J Brinkerhoff, Amelia, OH (US);
Earl J Mills, Cincinnati, OH (US);
Harry C Parkhurst, Cincinnati, OH (US);
Bela Vincze, Flemington, NJ (US);
Assignee:
Ethicon, Inc., Somerville, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61M / ; A61M / ;
U.S. Cl.
CPC ...
604165 ; 604274 ;
Abstract
A safety trocar is provided which includes a spring-loaded shield that shields the cutting tip of the obturator after the obturator penetrates tissue. The distal end of the shield is hemispheric in profile and contains slides within cutting tip. The rounded distal end enables the shield to spring forward to shield the cutting tip as soon as the tip perforates the tissue. In other embodiments, positive mechanical means effect shielding.