Combined stimulation of ventral and dorsal sacral roots for control of bladder function
First Claim
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1. A method comprising:
- transmitting a first series of stimulus pulses comprising a quasitrapezoidal pulse train to a sacral ventral root of a patient with a first electrode; and
simultaneously transmitting a second series of stimulus pulses comprising an intermittent pulse train pattern of 1 second on/1 second off to a sacral dorsal root corresponding to the sacral ventral root of the patient with a second electrode to stimulate the dorsal root;
wherein both series subdue urethral reflexes and enhances voiding to empty the bladder.
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Abstract
Methods and apparatuses for controlling bladder discharge in a patient are described. The method includes coupling a first electrode to a sacral ventral root of the patient and coupling a second electrode to a sacral dorsal root of the patient. The method may be applied to spinal cord injured patients without dorsal root section.
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Citations
16 Claims
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1. A method comprising:
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transmitting a first series of stimulus pulses comprising a quasitrapezoidal pulse train to a sacral ventral root of a patient with a first electrode; and simultaneously transmitting a second series of stimulus pulses comprising an intermittent pulse train pattern of 1 second on/1 second off to a sacral dorsal root corresponding to the sacral ventral root of the patient with a second electrode to stimulate the dorsal root; wherein both series subdue urethral reflexes and enhances voiding to empty the bladder. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An apparatus for the control of bladder function in a patient by combined stimulation of ventral and dorsal sacral roots, comprising:
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a first electrode adapted to be coupled to a sacral ventral root of a patient further adapted to deliver a first series of stimulus pulses comprising a quasitrapezoidal pulse train; a second electrode adapted to be coupled to a sacral dorsal root corresponding to said sacral ventral root and further adapted to deliver a second series of stimulus pulses comprising an intermittent pulse train pattern of 1 second on/1 second off to stimulate the dorsal root; and control means, electrically coupled to said first and second electrodes, for generating said first and second pulses simultaneously, wherein both series subdue urethral reflexes and enhance voiding to empty the bladder. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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Specification