Clinical and research concerns with vibratory stimulation: a review and pilot study of common stimulation devices

8 Jun

Clinical and research concerns with vibratory stimulation: a review and pilot study of common stimulation devices

The parameters of vibrators used for sexual stimulation in laboratory settings and therapeutic contexts are usually unknown. The unidentified range of vibrator characteristics commonly used for sexual stimulation would help identify
appropriate vibrator for different purposes and clients. Seven vibrators used for sexual stimulation were tested using a piezoelectric accelerometer mounted on their housing to quantify frequency, displacement, and acceleration of each.

Vibratory frequency ranged from 43 to 148 Hz

8 Jun

Effects of vibratory stimulation on sexual response in women with spinal cord injury

“Women with spinal cord injuries (SCIs) have predictable alterations in sexual responses. They commonly have a decreased ability to achieve genital sexual arousal. This study determined whether the use of vibratory stimulation would result in increased genital arousal as measured by vaginal pulse amplitude in women with SCIs. Subjects included 46 women with SCIs and 11 nondisabled control subjects. Results revealed vibratory clitoral stimulation resulted in increased vaginal pulse amplitude as compared with manual clitoral stimulation in both SCI and nondisabled subjects; however

8 Jun
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About Fertility Healthcare

We support the right of men with disabilities such as spinal cord injury (SCI) or ejaculatory dysfunction to have children or enjoy a healthy sex life.

Towards that end, we collaborate with leading medical institutions in the research and development of non-invasive products to facilitate ejaculation and the treatment of male infertility, using penile vibratory stimulation – PVS (also designated TMNS – Transcutaneous Mechnical Nerve Stimulation).

We welcome you to learn more about our FertiCare Personal Vibrator, Viberect, and Intimate Rider products, and our efforts in this field by exploring our website.

The Concept of Penile Vibratory Stimulation (PVS)

While maintaining a healthy sex life is important to many people, the ability to ejaculate is decreased after spinal cord injury. This is the primary cause of infertility in spinal cord injured men. The use of the vibration concept has proven effective in the treatment of infertility. While the technique is often performed initially in a clinical setting, it can also be performed at home – as is being done by more than a thousand men world-wide.

The Medical Explanation

To induce ejaculation by penile vibratory stimulation (PVS) requires an intact ejaculatory reflex arch to provide transmission of afferent stimuli from penis to the sacral, lumbar and lower thoracic segments of the spinal cord, and efferent stimuli from these segments to the ejaculatory organs. The above mentioned spinal cord segments will, even when isolated from the brain, respond to PVS.

Read More…

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New products help paraplegics have sex

Rebecca Rosenberg
Columbia News Service
Mar. 13, 2007 06:26 PM

Nearly 15 years ago David Bucks was extreme skiing in California when an avalanche knocked him down and threw him from a 200-foot cliff onto a rock face. Three of his vertebrae broke into 42 pieces. At 33, Bucks was completely paralyzed below the chest. Once he realized he’d live, he feared that he’d never be able to have sex again.

You’re telling me that my other legs won’t be able to walk but will little Junior?” Bucks recalled asking the doctors.

8 Jun

A Guide and Resource Directory to Male Fertility Following Spinal Cord Injury/Dysfunction

By Maria J. Amador, B.S.N., CRRNCharles M. Lynne, M.D.Nancy L. Brackett, Ph.D., HCLD

A publication funded by the Paralyzed Veterans of American Spinal Cord Injury Education and Training Foundation+


In the United States, there are 8,000 to 10,000 spinal cord injuries that occur each year. The majority of these injuries happen to men between the ages of 16 and 45 – typically the reproductive years. Many men with spinal cord injury/dysfunction (SCI/D) experience fertility problems related to their injury and want to know if they can become biological fathers.

There are two main problems men with SCI/D face when considering biological fatherhood. First

8 Jun

Antispastic Effect of Penile Vibration in Men With Spinal Cord Lesion

Antispastic Effect of Penile Vibration in Men With Spinal Cord Lesion

LineLjssøe, MD, Jens Bo Nielsen, FinBiering-Sørensen, MD, Jens Sønksen ,MD ABSTRACT.Læssøe L, Nielsen JB, Biering-Sørensen F, Sønksen J.
Antispastic effect of penile vibration in men with spinal cord lesion. Arch Phys Med Rehabil 2004;85:919-24.

Objective: To evaluate the possible antispastic effect penile vibratory stimulation (PVS) in men with spinal cord  lesionDesign:Unblinded, before-after trial.

Setting: Ambulatory care.

Participants: Nine men with SCLs from C2 to T8 were randomly allocated into 2 groups.Intervention: Twenty-four hours of electromyographic recordings from the quadriceps and tibialis anterior muscles were taken, followed by PVS or no treatment and another 24 hours of electromyographic recordings. The presence of electromyographic activity of an amplitude 4 times the baseline, with a duration of more than 5 seconds, was taken to signify a spasm. The number of spasms per hour was calculated before and after PVS and no treatment. Spasticity was evaluated by the Modified Ashworth Scale(MAS).

Main Outcome Measure: Reduction in spasticity and spasms.

Results: The electromyographic data showed a significant reduction in the frequency of leg spasms up to 3 hours (P<.05). Significantly decreased spasticity, as evaluated by MAS, was found immediately after vibration (P<.01).Conclusions: PVS may be useful as an antispastic therapy.


Click here for the report (PDF)