Leadless implantable medical device with osmotic pump
First Claim
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1. A leadless implantable medical device (IMD) comprising:
- a housing defining an outer surface and comprising an outlet;
a pump reservoir positioned within the housing, wherein the pump reservoir is configured to store genetic material, wherein the genetic material is configured to generate at least one of a reduced stimulation threshold or new intrinsic biological pacemaker activity at a target cardiac tissue site of a patient adjacent to the outer surface of the housing, and wherein the genetic material is configured to generate the at least one of the reduced stimulation threshold or the new intrinsic biological pacemaker activity by at least inducing transgene expression to generate biological pacemaker cells in the cardiac tissue of the patient, wherein the biological pacemaker cells are capable of inducing a normal cardiac rhythm autonomously;
a pump positioned within the housing, wherein the pump is configured to deliver the genetic material to the target cardiac tissue site via the outlet;
a stimulation energy delivery element positioned on or within the housing; and
a stimulation module within the housing and coupled to the stimulation energy delivery element, wherein the stimulation module is configured to deliver cardiac pacing to the target cardiac tissue site via the stimulation energy delivery element, the stimulation module comprising a control module configured to detect the at least one of the reduced stimulation threshold or the new intrinsic biological pacemaker activity in response to the delivery of the genetic material to the target cardiac tissue site via the pump and modify at least one parameter defining the stimulation in response to the detection of the at least one of the reduced stimulation threshold or the new intrinsic biological pacemaker activity at the target cardiac tissue site.
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Abstract
Techniques for delivering genetic material to a target tissue site of a patient via a leadless implantable medical device that includes a pump and a stimulation energy delivery element are described. In some examples, delivery of genetic material to the target tissue site causes transgene expression of tissue at the target tissue site, which may result in generation of new cells or modified properties of existing cells of the target tissue site, facilitating more effective and efficient treatment of a disorder of the patient.
63 Citations
17 Claims
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1. A leadless implantable medical device (IMD) comprising:
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a housing defining an outer surface and comprising an outlet; a pump reservoir positioned within the housing, wherein the pump reservoir is configured to store genetic material, wherein the genetic material is configured to generate at least one of a reduced stimulation threshold or new intrinsic biological pacemaker activity at a target cardiac tissue site of a patient adjacent to the outer surface of the housing, and wherein the genetic material is configured to generate the at least one of the reduced stimulation threshold or the new intrinsic biological pacemaker activity by at least inducing transgene expression to generate biological pacemaker cells in the cardiac tissue of the patient, wherein the biological pacemaker cells are capable of inducing a normal cardiac rhythm autonomously; a pump positioned within the housing, wherein the pump is configured to deliver the genetic material to the target cardiac tissue site via the outlet; a stimulation energy delivery element positioned on or within the housing; and a stimulation module within the housing and coupled to the stimulation energy delivery element, wherein the stimulation module is configured to deliver cardiac pacing to the target cardiac tissue site via the stimulation energy delivery element, the stimulation module comprising a control module configured to detect the at least one of the reduced stimulation threshold or the new intrinsic biological pacemaker activity in response to the delivery of the genetic material to the target cardiac tissue site via the pump and modify at least one parameter defining the stimulation in response to the detection of the at least one of the reduced stimulation threshold or the new intrinsic biological pacemaker activity at the target cardiac tissue site. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method comprising:
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delivering, via a pump of a leadless implantable medical device, genetic material to a target cardiac tissue site of a patient, wherein the genetic material is configured to generate at least one of a reduced stimulation threshold or new intrinsic biological pacemaker activity at the target cardiac tissue site of the patient, wherein the genetic material is configured to generate the at least one of the reduced stimulation threshold or the new intrinsic biological pacemaker activity by at least inducing transgene expression to generate biological pacemaker cells in the cardiac tissue of the patient, wherein the biological pacemaker cells are capable of inducing a normal cardiac rhythm autonomously, and wherein the leadless implantable medical device comprises; a housing defining an outer surface and comprising an outlet, a pump reservoir positioned within the housing, wherein the pump reservoir is configured to store the genetic material, the pump positioned within the housing, a stimulation energy delivery element positioned on or within the housing, and a stimulation module within the housing and coupled to the stimulation energy delivery element, the stimulation module comprising a control module; delivering, via the stimulation module, stimulation to the target cardiac tissue site of the patient via the stimulation energy delivery element, wherein the target cardiac tissue site is adjacent to the outer surface of the housing; detecting, via the control module, the at least one of the reduced stimulation threshold or the new intrinsic biological pacemaker activity in response to the delivery of the genetic material to the target cardiac tissue site via the pump; and modifying, via the control module, at least one parameter defining the stimulation in response to the detection of the at least one of the reduced stimulation threshold or the new intrinsic biological pacemaker activity at the target cardiac tissue site. - View Dependent Claims (15, 16, 17)
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Specification