Detrusor myoplasty and neuromuscular electrical stimulation of the urinary bladder
Patent 5370670 Issued on December 6, 1994. Estimated Expiration Date: December 13, 2013. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
A system and method for inducing micturition in patients with areflexic bladders or an otherwise diminished capacity to intentionally micturate are disclosed. The method disclosed comprises the steps of transecting a patient's rectus abdominis muscle between the xiphoid and umbilicus, preserving the patient's inferior epigastric artery and 2 to 4 innervating intercostal nerves and thereby creating a muscle flap attached to the symphysis pubis; wrapping the muscle flap around the patient's bladder and suturing it to itself to create a muscle bag around the bladder; attaching to the muscle bag and/or at least one of the innervating intercostal nerves, at least one electrical lead which is attached to an actuatable signal generator that comprises one or more switches and a power source; and actuating the switch of the actuatable signal generator in order to deliver a series of stimulus pulses from the signal generator to the muscle bag which are sufficient to cause the muscle bag to contract.
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