Wireless intravascular medical device with a double helical antenna assembly
AssigneeKenergy, Inc.
InventorsStephen Denker, Cherik Bulkes, Arthur Beutler
Life of this patent
Estimating the term…
Abstract
A medical device, such as a cardiac pacing device for an animal, includes an intravascular antenna that has a first coil for engaging a wall of a first blood vessel to receive a radio frequency signal. The first coil includes a first winding wound helically in a rotational direction along a longitudinal axis from a first end of the coil to a second end. A second winding that is connected to the a first winding at the second end, is wound helically in the same rotational direction along the longitudinal axis from the second end to the first end. An electronic circuit is implanted in the animal and is connected to the antenna to receive an electrical signal therefrom.
Claims11
A medical device comprising:
- an antenna having a first coil for engaging a wall of a first blood vessel of an animal to receive a radio frequency signal, wherein the first coil has a first end and a second end, and includes a first winding wound helically in a rotational direction along a longitudinal axis from a first terminus at the first end to the second end, and a second winding connected to the a first winding at the second end and wound helically in the rotational direction along the longitudinal axis from the second end to a second terminus at the first end;
- a detector connected to the first coil for converting the radio frequency signal into a direct current;
- an electrical storage device connected to the detector for storing electrical energy;
- a plurality of electrodes in contact with at least one blood vessel of the animal;
- a stimulation control circuit which determines when stimulation of tissue of the animal is needed;
- and
- a pulse circuit which responds to the stimulation control circuit by applying voltage from the electrical storage device across the plurality of electrodes.
A medical device comprising:
- an antenna assembly having a first coil for engaging a wall of a first blood vessel of an animal to receive a radio frequency signal
- an electronic circuit implanted in the animal remotely from the first blood vessel and connected to the antenna assembly to receive an electrical signal therefrom;
- and
- a power source for placement outside the animal and having transmitter antenna and a transmitter that generates a radio frequency signal which is applied to the transmitter antenna.
Dependencies are inferred from the claim text.