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US 5,325,870 AGranted
Multiplexed defibrillation electrode apparatus
AssigneeAngeion Corporation
InventorsMark W. Kroll, Theodore P. Adams, Joseph S. Perttu, Charles Supino
Life of this patent
Estimating the term…
Abstract
A defibrillation electrode apparatus which provides defibrillating, pacing, and sensing functions with the use of fewer conductors. Conductor requirements are minimized by solid-state multiplexing that is accomplished at the distal end of the apparatus.
Claims17
An implantable defibrillation electrode apparatus, comprising:
- a. a body structure;
- b. a number "X", wherein X is at least 3, of electrode members disposed on said body structure for electrical communication with the exterior environment;
- c. a number "X-Y", wherein Y is a number between 1 and X-2, of conductive lead members, each lead member being communicatively connected to at least one electrode member and extending therefrom to a predetermined point on said body structure, and wherein each said electrode member is connected to at least one said lead member and at least one said lead member is connected to more than one said electrode member;
- and
- d. rectifier means connected between at least one lead member and at least one electrode member.
2 more elements
A, transvenous catheter-style defibrillation electrode apparatus, comprising:
- a. an elongated insulative body structure having a distal and a proximal end;
- b. four electrode members disposed on said body structure distal end for electrical communication with the human cardiac tissues, said four electrode members including a positive defibrillation electrode, a negative defibrillation electrode, a positive pace/sense electrode and a negative pace/sense electrode;
- c. a first lead connected to said positive defibrillation lead, a second lead connected to said positive pace/sense electrode, and a third lead connected to said negative alefibrillation lead and to said positive pace/sense electrode, each lead extending from its respective said electrode to said proximal end of said body structure;
- and
- d. first rectifier means connected between said first lead and said negative defibrillation electrode, and second rectifier means connected between said first lead and said negative pace/sense electrode.
2 more elements
A, transvenous catheter-style defibrillation electrode apparatus, comprising:
- a. an elongated insulative body structure having a distal and a proximal end;
- b. four electrode members disposed on said body structure distal end for electrical communication with the human cardiac tissues, said four electrode members including a positive defibrillation electrode, a negative defibrillation electrode, a positive pace/sense electrode and a negative pace/sense electrode;
- c. a first lead connected to said positive defibrillation electrode and to said negative pace/sense electrode, and a second lead connected .to said negative defibrillation electrode and to said positive pace/sense electrode, each lead extending from its respective said electrode to said proximal end of said body structure;
- and
- d. first rectifier means connected between first lead and said positive defibrillation electrode, second rectifier means connected between said first lead and said negative pace/sense electrode, third rectifier means connected between said second lead and said negative defibrillation electrode, and fourth rectifier means connected between said second lead and said positive pace/sense electrodes.
2 more elements
A transvenous catheter-style defibrillation electrode apparatus, comprising:
- a. an elongated insulative body structure having a distal and a proximal end;
- b. four electrode members disposed on said body structure distal end for electrical communication with the human cardiac tissues, said four electrode members including a positive defibrillation electrode, a negative defibrillation electrode, a positive pace/sense electrode and a negative pace/sense electrode;
- c. a first lead connected to said positive defibrillation electrode and to said negative pace/sense electrode, and a second lead connected to said negative defibrillation electrode and to said positive pace/sense electrode, each lead extending from its respective said electrode to said proximal end of said body structure;
- and
- d. a first zener diode connected between said first lead and said positive defibrillation electrode, said first zener diode having a cathode disposed toward said positive defibrillation electrode, firs means to limit current connected between said second lad and said negative defibrillation electrode, a second zener diode connected between said second lead and said negative defibrillation electrode, said second zener diode having an anode disposed toward said negative defibrillation electrode, and second means to limit current connected between said second lead and said positive pace/sense electrode.
2 more elements
Dependencies are inferred from the claim text.