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 gene regulatory system detects ischemia events and is capable of delivering a biologic therapy in response to the detection of an ischemic event or the reception of a command. The biologic therapy protects the heart from ischemic damage by regulating the expression of an exogenously introduced gene product. In one embodiment, the gene regulatory system includes an implantable system that emits at least one gene regulatory signal in response to the detection of the ischemic event or the reception of the command. The gene regulatory signal directly or indirectly regulates gene expression of the gene product.
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:
An implantable cardiac protection pacing system delivers pacing pulses to protect the heart from injuries associated with ischemia and myocardial infarction. The system includes an implantable pulse generator (PG) that delivers the pacing pulses and a coronary stent electrically connected to the implantable PG to function as a pacing electrode through which the pacing pulses are delivered. In one embodiment, an intravascular lead provides the electrical connection between the coronary stent and the implantable PG to allow the implantable PG to be implanted in the femoral region. In another embodiment, the coronary stent and the implantable PG are integrated into an intravascular pulse generator-stent.
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 system delivers combined ventricular assist device (VAD) therapy and chemical and/or biological therapy to modulate myocardial tissue growth in a heart after myocardial infarction (MI). The system includes an agent delivery device to release one or more agents to an MI region to modulate myocardial tissue growth in that region, and a VAD to enhance the effects of the one or more agents by reducing myocardial wall stress and the overall cardiac workload. In one embodiment, the system is an implantable system including an implantable agent delivery device and an implantable VAD for long-term use in a patient.
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 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:
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 gene regulatory system detects ischemia events and is capable of delivering a biologic therapy in response to the detection of an ischemic event or the reception of a command. The biologic therapy protects the heart from ischemic damage by regulating the expression of an exogenously introduced gene product. In one embodiment, the gene regulatory system includes an implantable system that emits at least one gene regulatory signal in response to the detection of the ischemic event or the reception of the command. The gene regulatory signal directly or indirectly regulates gene expression of the gene product.