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Method, system and device for treating disorders of the pelvic floor by electrical stimulation of the left and the right sacral nervesRelated Patent Categories: Surgery: Light, Thermal, And Electrical Application, Light, Thermal, And Electrical Application, Electrical Therapeutic Systems, Stimulating Reproductive OrganMethod, system and device for treating disorders of the pelvic floor by electrical stimulation of the left and the right sacral nerves description/claimsThe Patent Description & Claims data below is from USPTO Patent Application 20060190046, Method, system and device for treating disorders of the pelvic floor by electrical stimulation of the left and the right sacral nerves. Brief Patent Description - Full Patent Description - Patent Application Claims
RELATED APPLICATIONS [0001] This application is a continuation-in-part of each of the following U.S. patent applications, and claims priority and other benefits from each such Application: (1) U.S. patent application Ser. No. 10/236,578 to Gerber et al. entitled "Electrical and/or Magnetic Stimulation Therapy for the Treatment of Prostatitis and Prostatodynia" filed Sep. 6, 2002 and having Attorney Docket No. P-1 0974; (2) U.S. patent application Ser. No. 10/723,316 to Gerber et al. entitled "Method, System and Device for Treating Disorders of the Pelvic Floor by Electrical Stimulation of the Pudendal Nerves and Associated Nerves, and the Optional Delivery of Drugs in Association Therewith" to Spinelli et al. filed Nov. 26, 2003 and having Attorney Docket No. P-11358.00; (3) U.S. patent application Ser. No. 10/723,903 to Gerber entitled "Method, System and Device for Treating Various Disorders of the Pelvic Floor by Electrical Stimulation of the Pudendal Nerves and the Sacral Nerves at Different Sites" filed Nov. 26, 2003 and having Attorney Docket No. P-11358.01; (4) U.S. patent application Ser. No. 10/745,757 to Gerber et al. entitled "Method, System and Device for Treating Various Disorders of the Pelvic Floor by Electrical Stimulation of the Pudendal Nerves and the Sacral Nerves at Different Sites" to Gerber filed Dec. 23, 2003 and having Attorney Docket No. P-11358.02. This application hereby incorporates by reference herein the foregoing '578, '316, '903 and '757 patent applications, each in its respective entirety. FIELD OF THE INVENTION [0002] This invention relates to methods, systems and devices for treating various disorders of the pelvic floor by delivering electrical stimuli to the sacral nerves. BACKGROUND [0003] The medical device industry produces a wide variety of electronic and mechanical devices for treating patient medical conditions. Depending upon the medical condition, medical devices may be surgically implanted or connected externally to a patient receiving treatment. Clinicians use medical devices alone or in combination with drug therapies and surgery to treat patient medical conditions. For some medical conditions, medical devices provide the best (and sometimes the only) therapy to restore an individual to a more healthful condition and a fuller life. Conditions that medical devices may effectively treat include pelvic floor disorders. [0004] Pelvic floor disorders adversely affect the health and quality of life of millions of people. Pelvic floor disorders include urinary control disorders such as urge incontinency, urge frequency, voiding efficiency, fecal control disorders, sexual dysfunction, and pelvic pain. Individuals with urinary control disorders often face debilitating challenges in their everyday lives. These individuals may be preoccupied with trips to the bathroom, fears of embarrassment and sleepless nights. Some suffers become so anxious that they become isolated and depressed. Pelvic floor disorders may be treated with a variety of therapeutic options such as behavior modification including biofeedback, pharmacological treatment, mechanical intervention such as self-catheterization, physical appliances such as diapers, and surgical intervention. Surgical treatments are the most invasive and are often considered after other therapies have proven ineffective. [0005] Urinary incontinence, or the inability to control the passage of urine, is a relatively common problem. Although there are a variety of different types of urinary incontinence, stress incontinence, urge incontinence and urinary retention are the most common. [0006] Stress incontinence is the unacceptable passage of urine under the stress of increased abdominal pressure. This increased pressure typically results from coughing, sneezing, and Valsalva. Stress incontinence is manifested urologically by normal cystometry, obtuse urethral vesicular angle, abnormally low urethral pressures and a physiologically short urethral length. This disorder is most common in multiparous, post-menopausal females. Physiologically, stress incontinence is a disorder of the volitional muscular control of the urethral resistance to the flow of urine. Laxity and partial denervation of the pelvic musculature is the chief abnormality. [0007] Urge incontinence is the involuntary passage of urine with a concomitant sense of urgency. Systometry indicates detrusor (bladder wall muscle) contractions with low bladder filling pressures and volumes. These bladder contractions may not be inhibited in the presence of voluntary EMG signals from the sphincter, indicating reduction or loss of the pudendal-parasympathetic inhibitory reflex. Unsolicited, premature bladder contraction may result from mucosal irritation of varied etiology. These premature contractions of the bladder may also be the result of an abnormally high gain in the detrusor contractile reflex due to the loss of inhibitory control with an upper-motor-neuron lesion. [0008] Urinary retention is characterized by the inability of a patient to spontaneously and controllably urinate or void. Catheterization of the urethra is provided to many patients suffering from urinary retention, which is often a painful and somewhat lengthy procedure having the added risk of causing infection. [0009] Constipation is a life-disturbing problem that afflicts millions of Americans, from the very young to the elderly. Although relatively rare among the young, it is a very common problem in middle age, and is a nearly ubiquitous problem in the elderly. Chronic constipation is a major problem for many individuals, and frequently causes extreme discomfort to the afflicted. Such discomfort may be a major obstacle to leading a normal life, and may consume an enormous amount of the afflicted person's energy and time. [0010] Besides causing severe discomfort, chronic constipation may also be harmful to the patient. For example, chronic constipation may result in an intestinal obstruction that may cause the patient great pain; or that may even cause the patient's death, unless surgically corrected. Chronic constipation may also prevent the patient from receiving the benefit of certain needed prescription medications, because the medications may have undesirable side effects on an already constipated gut. [0011] Conventional therapies for chronic constipation are often distasteful and unpleasant at best, since they may involve treatments such as repeated consumption of large quantities of laxatives, repetitive use of enemas, or both. Repeatedly consuming large quantities of laxatives may be harmful to the patient, since they may result in dehydration or even renal failure. The repetitive use of enemas may be harmful since they may irritate or physically harm the treated portion of the patient's gut. [0012] Chronic constipation is usually thought of in association with problems of the large intestine. Other parts of the patient's gut, however, may also exhibit chronic constipation-like problems, such as the esophagus, the stomach, and less frequently, the small intestine. Problems associated with chronic constipation may include depressed motility of the esophagus, stomach or small intestine. For simplicity, chronic constipation, or chronic constipation-like problems, of any portion of the patient's gut from the esophagus to the anus will be referred to hereafter as simply "constipation". [0013] The prostate is a glandular and fibromuscular organ in the male, which lies immediately below the bladder and surrounds the urethra. Prostatitis, the third leading disease of the prostate, is a common urologic condition that many clinicians find difficult to treat effectively. [0014] The main symptom of chronic prostatitis (category III) is pain, followed by variable voiding (urgency/frequency) and erectile or sexual dysfunction. Patients have symptoms such as painful ejaculation or pain in the penis, testicles, or scrotum; low back, rectal or perineal pain; pain along the inner aspects of the thighs; irritative or obstructive urinary symptoms; and decreased libido or impotence. As a rule, chronic non-bacterial prostatitis patients do not have recurrent urinary tract infections. [0015] Chronic prostatitis is a major male health issue. The average urologist in the U.S. sees 173 prostatitis patients per year, of which one-third are newly diagnosed. The prevalence of prostatitis in the general male population is estimated to be 5-8.8%, and it has been estimated that about 2 million office visits per year are related to prostatitis. Self-reported histories of prostatitis are as prevalent as 16% of all reported cases. Patients with chronic prostatitis experience a negative impact on quality of life comparable to patients with unstable angina, recent myocardial infarction or active Crohn's disease. The average age of the prostatitis population is estimated at 50 years. Prostatitis is the most common urologic diagnosis in men under 50 years old and the third most common in men over 50 years old. The most common classification of prostatitis is chronic prostatitis/chronic pelvic pain syndrome (category ll), which may include as many as 90% of all patients who meet the criteria of the condition. [0016] Despite the widespread prevalence of prostatitis, the diagnosis of chronic prostatitis represents a particular challenge since its diagnosis is often based on exclusion. Prostatitis remains poorly understood despite its prevalence because it encompasses multiple diverse disorders that cause symptoms related to the prostate gland. The etiology of acute and chronic bacterial prostatitis is clearly defined, and is a result of pathogenic bacteria that may cause systemic symptoms or urinary tract infections. On the other hand, chronic prostatitis/chronic pelvic pain syndrome does not have a clearly defined etiology, and there are many theories about the cause of this disease. [0017] Perhaps the most comprehensive or encompassing theory of chronic non-bacterial prostatitis is one which advocates a multifactorial mechanism initiated by a stimulus such as infection or trauma. An interrelated cascade of events may follow, including physical, chemical, immunologic or neurogenic components, resulting in a local response of inflammation and/or neurogenic injury. [0018] In the absence of consistent or clear etiologies for chronic prostatitis/chronic pelvic pain syndrome, improvement in quality of life and a reduction in symptoms are the usual goals of therapy. The most common treatment for chronic prostatitis involves pharmacologic treatments such as antibiotics, anti-inflammatory agents, alpha blockers, anti-spasmodics, analgesics, allopurinol, and muscle relaxants. Alpha blockers have successfully treated symptoms of prostatitis, although adverse event rates have been high. Muscle relaxants have shown significant improvement in small studies for category IIIB patients with sphincter dyssynergia or muscle spasm. Anti-inflammatory agents, such as pentosan polysulfate, have proven successful for approximately 40% of patients with category IIIA prostatitis. [0019] Phytotherapeutic agents have demonstrated improvements in small studies for pain and irritative voiding. Other treatments include physiotherapy (such as biofeedback and pelvic muscle exercises) and various modalities of invasive and minimally invasive procedures (e.g., transurethral microwave therapy, transurethral incision of the bladder neck, hydrodistensions, acupuncture, electroneuromodulation, balloon dilation, YAG laser therapy and heat therapy). Repetitive prostatic massage is a popular treatment method due to the failure of consistent standard medical therapy to treat the condition. Lifestyle changes, such as meditation, discontinuation of bike riding, sitz-baths, dietary changes and chiropractic therapy, are often prescribed. [0020] As a result of unknown etiology, unsure diagnosis and treatment options that are often myriad and ineffective, chronic prostatitis is a "diagnosis of exclusion" and has a poor record of treatment success. Accordingly, the present invention is intended to provide solutions to the foregoing problems through improved and more effective methods of treating pain and other symptoms associated with chronic prostatitis, prostatalgia and prostatodynia. [0021] Sexual dysfunction comprises a broad range of maladies, including erectile dysfunction, orgasmic dysfunction, premature ejaculation and lack of lubrication. Sexual dysfunctions plague both women and men, and may be life-long or acquired. To treat impotence (also called erectile dysfunction), electrical conductors may be implanted near the surface of the pelvic splanchnic nerve. Stimulation of this nerve with low voltage electrical pulses is believed to cause arterioles dilation and initiate erection. Also, it is known that implantation of an electrode on the cavernous nerves of a male, adjacent to his prostate gland, may also cause penile erection. Further, other electrical impulse devices exist that are not implanted but instead apply electrical stimuli topically to the coccyx region to promote sexual excitation. Impotence, however, should not be confused with orgasmic dysfunction, where satisfactory erection may be obtained but there is an absence of orgasm. Continue reading about Method, system and device for treating disorders of the pelvic floor by electrical stimulation of the left and the right sacral nerves... 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