Method and apparatus for controlled gene or protein delivery
First Claim
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1. A system, comprising:
- an implantable pulse generator including;
a sensor to sense a physiological signal indicative of a predetermined cardiac condition;
an event detector, coupled to the sensor, to detect the predetermined cardiac condition from the physiological signal;
an implant telemetry module to receive an external command transmitted to the implantable pulse generator; and
an implant controller coupled to the event detector and the implant telemetry module, the implant controller including a gene or protein delivery control module configured to produce an electrical signal to control iontophoretic gene or protein delivery in response to the predetermined cardiac condition and the external command;
an implantable lead system including one or more leads, the lead system configured to transmit the electrical signal; and
an implantable gene or protein delivery device electrically wired to the implantable pulse generator through the implantable lead system, the implantable gene or protein delivery device configured to receive the electrical signal and including a polymer matrix and isolated nucleic acid which encodes at least one gene product or binds at least one selected mRNA, or isolated protein, the nucleic acid or protein contained in the polymer matrix and released from the implantable gene or protein delivery device in response to an electric field applied to the polymer matrix, the electric field created by the electrical signal.
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Abstract
An implantable system which includes a gene/protein delivery device and a pulse generator, as well as method of preparing the gene/protein delivery device and using the system, are provided. In one embodiment, the implantable system detects a predetermined condition or event and, in response, delivers gene(s) and/or protein(s) in conjunction with delivering pacing and/or defibrillation pulses.
115 Citations
94 Claims
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1. A system, comprising:
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an implantable pulse generator including; a sensor to sense a physiological signal indicative of a predetermined cardiac condition; an event detector, coupled to the sensor, to detect the predetermined cardiac condition from the physiological signal; an implant telemetry module to receive an external command transmitted to the implantable pulse generator; and an implant controller coupled to the event detector and the implant telemetry module, the implant controller including a gene or protein delivery control module configured to produce an electrical signal to control iontophoretic gene or protein delivery in response to the predetermined cardiac condition and the external command; an implantable lead system including one or more leads, the lead system configured to transmit the electrical signal; and an implantable gene or protein delivery device electrically wired to the implantable pulse generator through the implantable lead system, the implantable gene or protein delivery device configured to receive the electrical signal and including a polymer matrix and isolated nucleic acid which encodes at least one gene product or binds at least one selected mRNA, or isolated protein, the nucleic acid or protein contained in the polymer matrix and released from the implantable gene or protein delivery device in response to an electric field applied to the polymer matrix, the electric field created by the electrical signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93)
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44. A method for operating an implantable gene or protein delivery system coupled to an implantable device, comprising:
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sensing a physiological signal indicative of a predetermined cardiac condition using an implantable sensor; detecting the predetermined cardiac condition from the physiological signal; receiving an external command transmitted to the implantable device from an external system; producing an electrical signal in response to the predetermined cardiac condition and the external command using the implantable device; transmitting the electrical signal from the implantable device to an implantable gene or protein delivery device through an implantable lead system; creating an electric field using the electrical signal; and applying the created electric field to a polymer matrix of the implantable gene or protein delivery device, the polymer matrix containing isolated nucleic acid which encodes at least one gene product or binds at least one selected mRNA or isolated protein, wherein the created electrical field is effective to release the nucleic acid or protein from the polymer matrix via iontophoresis. - View Dependent Claims (45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79)
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94. A system, comprising:
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an implantable pulse generator including; a sensor to sense a physiological signal indicative of a predetermined cardiac condition; an event detector, coupled to the sensor, to detect the predetermined cardiac condition from the physiological signal; and an implant controller coupled to the event detector, the implant controller including a gene or protein delivery control module configured to produce an electrical signal to control iontophoretic gene or protein delivery in response to the predetermined cardiac condition; and an implantable gene or protein delivery device coupled to the implantable pulse generator, the implantable gene or protein delivery device including an epicardial patch comprising a polymer matrix and isolated nucleic acid which encodes at least one gene product or binds at least one selected mRNA, or isolated protein, the nucleic acid or protein contained in the polymer matrix and released from the implantable gene or protein delivery device in response to an electric field applied to the polymer matrix, the electric field created by the electrical signal.
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Specification