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:
Mar. 13, 2007
Filed:
May. 11, 2001
Charles C. Hart, Summerville, SC (US);
Edward D. Pingleton, Laguna Niguel, CA (US);
John R. Brustad, Dana Point, CA (US);
Nabil Hilal, Laguna Niguel, CA (US);
Raffi Pinedjian, Fountain Valley, CA (US);
Charles C. Hart, Summerville, SC (US);
Edward D. Pingleton, Laguna Niguel, CA (US);
John R. Brustad, Dana Point, CA (US);
Nabil Hilal, Laguna Niguel, CA (US);
Raffi Pinedjian, Fountain Valley, CA (US);
Applied Medical Resources Corporation, Rancho Santa Margarita, CA (US);
Abstract
The trocar system includes a cannula insertable through a body wall using an obturator having a distal tip. A traction tread disposed interiorly of the obturator inverts at the distal tip and extends proximally along the outer surface of the obturator or cannula. At the distal tip the tread can facilitate parting rather than cutting the tissue. Along the outer surface, the tread can engage the tissue to pull it proximally along the advancing obturator. This produces counter forces which can result in a net proximal force facilitating distention of the abdominal wall and separation of the abdominal wall from internal organs. The traction tread can be axially and/or radially continuous. An associated method of operation includes the steps of contacting the body wall with the traction tread at the distal tip, and engaging the body wall with the traction tread along wall portions facing the outer surface.