U.S. patents available from 1976 to present.
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Detrusor myoplasty and neuromuscular electrical stimulation of the urinary bladder

Patent 5370670 Issued on December 6, 1994. Estimated Expiration Date: Icon_subject 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.

Inventor

Assignee

Application

No. 166211 filed on 12/13/1993

US Classes:

607/40Stimulating bladder or gastrointestinal tract

Examiners

Primary: Kamm, William E.
Assistant: Getzow, Scott M.

Attorney, Agent or Firm

International Class

A61N 001/36

Abstract

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.

Other References

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  • Alexander et al., "Electrical Control of Urinary Incontinence by Radio Implant," Br. J. Surg., 55:358-364, 1968
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  • Buyukunal et al., "An Alternative Treatment Modality in Closing Bladder Exstrophy: Use of Rectus Abdominus Muscle Flap--Preliminary Results in a Rat Model," J. Ped. Surg., 24:586-589, 1989
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  • Chachques et al., "Effect of Latissimus Dorsi Dynamic Cardiomyoplasty on Ventricular Function," Circulation, 78:203-216, 1988
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  • Merrill et al., "Clinical Experience with the Mentor Bladder Stimulator. I. Patients with Upper Motor Neuron Lesions," J. Urol., 112:52-56, 1974
  • Peckham et al., "Alteration in the Force and Fatigability of Skeletal Muscle in Quadriplegic Humans Following Exercise Induced by Chronic Electrical Stimulation," Clin. Orthop., 114:326-334, 1976
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  • Salmons et al., "The influence of activity of some contractile characteristics of mammalian fast and slow muscles," J. Physiol., 201:535-549, 1969
  • Tanagho et al., "Neural Stimulation for Control of Voiding Dysfunction: A Preliminary Report in 22 Patients with Serious Neuropathic Voiding Disorders," J. Urol., 142:340-345, 1989
  • Tarlov, I., "Spinal Cord Compression Studies," Arch. Neurol. Psychiatry, 71:588-597, 1954
  • Timm et al., "Electrostimulation of the Urinary Detrusor to Effect Contraction and Evacuation," Invest. Urol., 6:562-568, 1969
  • Yu-Hai et al., "Enveloping the Bladder with Displacement of Flap of the Ractus Abdominis Muscle for the Treatment of Neurogenic Bladder," J. Urol., 144:1194-1195, 199
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