Implantable medical stimulation apparatus with intra-conductor capacitive energy storage
First Claim
1. An apparatus for artificially stimulating an organ of an animal, said apparatus comprising:
- a first electrode and a second electrode for implantation into the animal;
an electrical lead having a shell containing a first conductor, a second conductor and a plurality of capacitors connected to the first and second conductors;
a body for implantation in the animal, wherein the electrode lead extends from the body to a remote location in the animal;
an element for receiving wireless signals; and
a stimulation circuit connected to the first electrode, the first conductor, the second conductor and the element, the stimulation circuit using energy from a received first wireless signal to charge the plurality of capacitors with electrical energy, and responding to a trigger event by applying the electrical energy stored in the plurality of capacitors to the first electrode and the second electrode to electrically stimulate the organ of the animal.
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Accused Products
Abstract
An implantable device electrically stimulates an organ of an animal in response to a trigger event. Between trigger event that device receives a wireless signal, such as a radio frequency signal, and stores energy from the signal in a plurality of capacitors. The capacitors are located within a electrical lead that extends to a stimulation electrode attached to the organ. That electrical lead has a hollow outer insulating tube with a pair of conductors extending longitudinally therein. The plurality of capacitors are connected between the pair of conductors. Thus the electrical lead serves as both a conductor of a stimulation current to the electrode and a housing for the plurality of capacitors.
129 Citations
18 Claims
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1. An apparatus for artificially stimulating an organ of an animal, said apparatus comprising:
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a first electrode and a second electrode for implantation into the animal; an electrical lead having a shell containing a first conductor, a second conductor and a plurality of capacitors connected to the first and second conductors; a body for implantation in the animal, wherein the electrode lead extends from the body to a remote location in the animal; an element for receiving wireless signals; and a stimulation circuit connected to the first electrode, the first conductor, the second conductor and the element, the stimulation circuit using energy from a received first wireless signal to charge the plurality of capacitors with electrical energy, and responding to a trigger event by applying the electrical energy stored in the plurality of capacitors to the first electrode and the second electrode to electrically stimulate the organ of the animal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 13)
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11. An apparatus for implantation into an animal to artificially stimulate an internal organ, said apparatus comprising:
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a first electrode and a second electrode for implantation into the animal; an electrical lead having a shell, a first conductor, a second conductor and a plurality of capacitors connected to the first and second conductors; an antenna for receiving radio frequency signals; a body for implantation in the animal, wherein the electrical lead extends from the body to a remote location in the animal; and a stimulation circuit mounted to the body and connected to the first electrode, the first conductor, the second conductor and the antenna, the stimulation circuit using energy from a received first radio frequency signal to charge the plurality of capacitors with electrical energy, and responding to a trigger event by applying the electrical energy stored in the plurality of capacitors to the first electrode and the second electrode to electrically stimulate the organ of the animal. - View Dependent Claims (12, 14, 15, 16, 17, 18)
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Specification