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:
Sep. 11, 2001
Filed:
Sep. 03, 1999
Fuminori Tsuboi, Nakai-machi, JP;
Katsuhiro Shirakawa, Nakai-machi, JP;
Kunimasa Katayama, Nakai-machi, JP;
Kabushiki Kaisha Cardio-Pacing Research Laboratory, Kanagawa-Ken, JP;
Abstract
In order to increase durability against repeated flexure caused in a body tissue or flexure having a very small radius of curvature, and to reduce mechanical stress applied by a lead body on the body tissue, a lead body (,) of an implantable electrode lead is constituted by a conductive coil (,) and a sheath (,). The conductive coil (,) is obtained by helically winding a conductive wire (,), formed with an insulating coating layer (,) and having a diameter (d), to have a coil pitch diameter (mean diameter) (D). The sheath (,) is made of an electrical insulating material. An outer diameter G of the lead body (,) is set to 2 mm or less. The sheath (,) is formed of a soft material having a Shore hardness of 80A or less. The conductive coil (,) is set to have a spring index (D/d) of 7.8 or more.