US Patent No: 5,143,090
Number of patents in Portfolio can not be more than 2000
Cardiac lead
Stats
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Sep 1, 1992
Issued date -
May 30, 1991
filing date -
07/707,681
serial no -
In Force
status
Importance
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Abstract
A cardiac lead for transmitting electric current to the heart and/or sensing and monitoring electrical activity of the heart has an elongated electrical conductor connected to a head. An electrode mounted on the head comprises a helical wire adapted to be turned into heart tissue. A second electrode having an irregular or non-flat surface surrounds the helical wire. The non-flat surface may be a wire mesh, a segmented plate and an annular plate supporting one or more coiled wires.
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First Claim
Related Publications
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International Classification(s)
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Cited Art
| Patent Info | (Count) | # Cites | Year |
|---|---|---|---|
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| 4,207,903 Device for screwing body tissue electrode into body tissue | 82 | 1978 | |
| 4,357,946 Epicardial pacing lead with stylet controlled helical fixation screw | 47 | 1980 | |
| 4,502,492 Low-polarization low-threshold electrode | 55 | 1983 | |
| 4,641,656 Cardioversion and defibrillation lead method | 82 | 1985 | |
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| 4,750,977 Electrochemical plating of platinum black utilizing ultrasonic agitation | 21 | 1986 | |
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| 4,355,642 Multipolar electrode for body tissue | 48 | 1980 | |
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| 2005/0190,527 SPRING CONTACT SYSTEM FOR EMI FILTERED HERMETIC SEALS FOR ACTIVE IMPLANTABLE MEDICAL DEVICES | 2005 | ||
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| 4,271,846 Lead installation tool | 9 | 1979 | |
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| 4,603,704 Electrode for medical applications | 51 | 1984 | |
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| 2001/0001,008 Transmitter/receiver for GMSK and Offset-QAM | 2000 | ||