Surgery – Truss – Pad
Patent
1991-07-29
1993-06-29
Kamm, William E.
Surgery
Truss
Pad
A61N 105
Patent
active
052225062
ABSTRACT:
A cross-over adaptor for reversing the electrical connection of outer and inner coaxial coiled wire conductors is provided in the body of a pacing lead having a physiologic sensor incorporated therein so that the lead may be employed advantageously for conventional pacing functions with or without physiologic sensor function. In a specific embodiment, the adaptor is placed adjacent to a physiologic pressure sensor positioned in line in the lead body between the connector end thereof and the distal pace/sense electrode end thereof. The physiologic pressure sensor possesses an elongated cylindrical outer housing and an axially oriented electrical feed-through to the active components thereof. The cross-over adaptor is coupled at one end thereof to the sensor housing and electrical feed-through and at the other end thereof to the inner and outer coaxial coiled wire lead conductors which extend back to the proximal end of the lead body and are electrically connected to proximal pin and ring connector elements. At the distal end of the lead, the distal tip electrode is electrically coupled to the outer housing of the physiologic sensor. The electrical cross-over adaptor electrically connects the inner coiled wire conductor to the cylindrical housing of the physiologic sensor and the outer coiled wire conductor to the electrical feed-through of the physiologic sensor so that the proximal pin connector element is electrically connected to the distal tip electrode and the proximal ring connector element is electrically connected to the electrical feed-through of the physiological sensor. Thus, the electrical interconnection allows the lead to be employed as a conventional unipolar pacing lead in those situations where the physiological sensor is not employed in the pacing system.
REFERENCES:
patent: 4214594 (1980-07-01), Little
patent: 4236525 (1980-12-01), Sluetz et al.
patent: 4413636 (1983-11-01), Jasso
patent: 4759378 (1988-07-01), Swendson et al.
patent: 4967755 (1990-11-01), Pohndorf
Patrick Timothy
Sandstrom Richard D.
Ufford Keith A.
Duthler Reed A.
Kamm William E.
Medtronic Inc.
Patton Harold R.
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