摘要:
A method and apparatus for performing a medical procedure on a beating heart. Electrical signals are applied to the heart so as to reduce motion of a segment thereof, and the procedure is performed while the heart continues to pump blood. Preferably, the motion increases spontaneously after the signals are removed.
摘要:
Apparatus (18) for performing a medical procedure on a beating heart (20) includes a mechanical stabilization element (25), a surface (27) of which is adapted to be applied to a segment (24) of the heart to reduce motion of the segment. One or more electrodes (100) are fixed to the surface of the stabilization element, so as to contact the segment when the stabilization element is applied to the segment. Preferably, at least one of the one or more electrodes is adapted to apply electrical signals to the segment so as to further reduce motion thereof, while the heart continues to pump blood.
摘要:
Apparatus (18) is provided for defibrillating a heart (20) of a person. The apparatus (18) includes one or more electrodes (100) that are adapted to be coupled to the heart, and a control unit (90) that is adapted to drive the electrodes to apply electrical pulses to the heart at a rate which is typically greater than about 10 Hz. The control unit terminates the electrical pulses, so that the heart beats without fibrillation. Other embodiments are also described.
摘要:
A method and apparatus for controlling activity of a heart of a living person during a medical procedure. Electrical signals are applied to the heart so as to induce a spontaneously-reversible cardioplegia thereof. The signals are preferably such that terminating application of the signals does not induce fibrillation. Most preferably, the signals have an amplitude that is below a level that would induce fibrillation upon termination thereof.
摘要:
Apparatus (18) for performing a medical procedure on a beating heart (20) includes a mechanical stabilization element (25), a surface (27) of which is adapted to be applied to a segment (24) of the heart to reduce motion of the segment. One or more electrodes (100) are fixed to the surface of the stabilization element, so as to contact the segment when the stabilization element is applied to the segment. Preferably, at least one of the one or more electrodes is adapted to apply electrical signals to the segment so as to further reduce motion thereof, while the heart continues to pump blood.
摘要:
A method and apparatus for controlling a segment of excitable tissue, typically tissue of a heart, the segment having an intrinsic activity level. During a high phase, electrical energy of a given amplitude is applied to the segment. During a low phase, the amplitude of the electrical energy applied to the segment is reduced relative to that applied during the high phase, so that the segment's activity level increases during the low phase above the intrinsic activity level.
摘要:
A method of promoting the healing of a lesion in a smooth muscle, comprising selecting a smooth muscle portion having a lesion and applying a non-excitatory electrical field to the portion, which field reduces the mechanical activity of the portion.
摘要:
A method of promoting the healing of a lesion in a smooth muscle (200), comprises selecting a smooth muscle portion having a lesion, and applying a non-excitory electric field (210) to the portion, which reduces the mechanical activity of the portion.
摘要:
An apparatus that comprises at least one electrode adapted to be placed adjacent to a portion of smooth muscle (200) and a controller for electrifying the electrode with a non-excitatory electric field (210) which does not generate excitation of the smooth muscle. The non-excitatory electric field affects the activity of the smooth muscle in a manner that controls a level of a chemical in the blood stream.
摘要:
A method of promoting the healing of a lesion in a smooth muscle (200), comprises selecting a smooth muscle portion having a lesion, and applying a non-excitory electric field (210) to the portion, which reduces the mechanical activity of the portion.