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. 15, 1979
Filed:
Apr. 01, 1977
Edward G O'Neill, St. Paul, MN (US);
Medtronic, Inc., Minneapolis, MN (US);
Abstract
A cardiac pacer lead is disclosed as being formable at the time of pacer implantation by the attending surgeon, by heating the pacer lead, as in boiling water, and then forming or shaping it to the desired configuration so that a pacer electrode is maintained resiliently in contact with the inner surface of the patient's heart, e.g. his atrium. The pacer lead comprises at least one flexible conductor about which is disposed a first insulating layer of a repeatably thermally-activated material to permit its formation into a desired configuration, and a second insulating layer disposed thereabout of a character suitable for implantation within the patient's body, i.e., resistant to corrosion by body fluids. Further, there is disclosed the method of assembling and attaching the cardiac pacer lead to a body organ, e.g., the patient's heart. The method includes the steps of incorporating the thermally-activated material within the pacer lead, heating the lead and shaping the lead into a non-linear configuration, reforming the lead into a linear configuration, inserting the lead to make electrical contact with the body organ and discontinuing the straightening of the pacer lead.