摘要:
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.
摘要:
Various system embodiments comprise a neural stimulator, a pulse generator, and a controller. The neural stimulator is adapted to generate a neural stimulation signal. The pulse generator is adapted to generate a pacing signal to provide myocardium pacing. The controller is adapted to control the neural stimulator and the pulse generator to provide a cardioprotective conditioning therapy. The conditioning therapy includes neural stimulation to elicit a parasympathetic response and myocardium pacing. Other aspects and embodiments are provided herein.
摘要:
A drug delivery system uses an electrically sensitive polymer to store a drug and applies an electric field onto the electrically sensitive polymer for quantitatively and temporally controlled drug delivery. In one embodiment, the drug delivery system is part of a cardiac rhythm management (CRM) system that includes an implantable CRM device and an implantable drug delivery device. The implantable CRM device delivers electrical therapies to a heart and controls the implantable drug delivery device by producing the electrical field with controllable amplitude, frequency, and timing.
摘要:
A drug delivery system detects a cardiac condition indicative of a need for increasing a cardiac metabolic level and, in response, releases a drug into tissue or blood to shift a source of metabolically synthesized energy fueling cardiac contraction from fatty acid to glucose. One example of such a system includes an implantable device detecting an ischemia and a transdermal drug delivery device delivering a drug when an ischemic condition is detected. Another example of such a system includes one or more implantable devices detecting a predefined change in cardiac metabolic level and delivering a drug when the change is detected. Such systems are applied to treat, for example, patients suffering ischemia and/or heart failure and patients having suffered myocardial infarction.
摘要:
A system and device are provided which include a gene regulatory system controlling expression of one or more expression cassettes present in or released by the device, by emitting one or more stimulations. An expression cassette includes a regulatable transcription control element that is responsive to the emitted stimulations linked to an open reading frame of interest. The system optionally includes a sensor to sense a parameter indicative of a need, a telemetry module to receive an external command, or a programmable device, for regulating gene expression of the open reading frame.
摘要:
An epicardial patch includes an extracellular matrix (ECM) and a plurality of electrodes. The isolated ECM is configured for epicardial attachment over a myocardial region including an injured area to control post-injury remodeling of the myocardial region. The plurality of electrodes is configured for delivering electrical stimulation to enhance the effect of the isolated ECM in remodeling control by altering workload and stress on the myocardial region.
摘要:
A cardiac rhythm management device is configured to deliver pre-excitation pacing to one or more sites in proximity to an infarcted region of the ventricular myocardium. The pre-excitation pacing in conjunction with counterpulsation therapy serves to either prevent or minimize post-infarct remodeling.
摘要:
A gene regulatory system controls gene therapy by emitting one or more forms of energy that regulate gene expression by triggering promoters. The system includes a sensor to sense a signal indicative of a need for the gene therapy as well as responses to the gene therapy. The regulation of the gene expression is controlled based on the sensed signal and/or a user command. In one embodiment, the system delivers one or more electrical therapies in conjunction with the gene therapy.