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:
May. 24, 1994
Filed:
Dec. 22, 1992
Applicant:
Inventors:
Randy R Stephens, Fairfield, OH (US);
Gregory D Bishop, Hamilton, OH (US);
James Voegele, Cincinnati, OH (US);
Diane Welling, Cincinnati, OH (US);
Richard Smith, Loveland, OH (US);
John M Collins, Ipswich, MA (US);
George Selecman, Salem, MA (US);
Assignee:
Ethicon, Inc., Somerville, NJ (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61M / ;
U.S. Cl.
CPC ...
604264 ; 604274 ; 606167 ; 606170 ;
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 conical in profile and contains a slot which conforms to the geometry of the cutting tip. The obturator tip contains a knife edge blade which extends the length of the cannula inner diameter. Ideally, the knife is made of an amorphous metal, and may be serrated at its edge.
Published as:
US5314417A; CA2111885A1; EP0604197A2; AU5266393A; GR930100516A; EP0604197A3; JPH0747076A; AU667411B2; GR1002618B; EP0604197B1; ATE189768T1; DE69327869D1; ES2141754T3; PT604197E; DE69327869T2; CA2111885C;