Erotic electrostimulation

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Violet wand
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An erotic electrostimulation power source and electrode

Erotic electrostimulation (abbreviated erotic e-stim

TENS, EMS, violet wands, or made-for-play units) for purposes of sexual stimulation. Electrostimulation has been associated with BDSM
activities, and erotic electrostimulation is an evolution of that practice.

Safety

Electrostimulation, in general, can cause

artificial pacemaker or similar device or who have heart conditions.[3] Because of this, it is not advisable to place the electrical contacts in such a way that current passes through the chest cavity.[4]

The international standard on the basic safety of medical nerve and muscle stimulators advises "that stimulation should not be applied across or through the head, directly on the eyes, covering the mouth, on the front of the neck, (especially the carotid sinus), or from electrodes placed on the chest and the upper back or crossing over the heart".[5] The standard also notes that "any electrodes that have current densities exceeding 2 mA/cm² may require the special attention of the operator". It imposes the following limits on the output parameters of stimulators (for therapeutic purposes):

  • with a load resistance of 500 Ω, the output current shall not exceed
    • 80 mA at DC
    • 50 mA below 400 Hz pulse frequency
    • 80 mA at 400–1500 Hz
    • 100 mA above 1500 Hz
  • for pulse durations less than 0.1 s, the pulse energy into a 500 Ω load shall not exceed 300 mJ per pulse, for longer pulses the above DC limit applies
  • the output shall not exceed a peak voltage of 500 V when measured under open-circuit condition

Erotic electrostimulation devices should avoid DC currents entirely, in order to avoid electrolytic effects. This is usually achieved through "biphasic" waveforms, in which each positive current pulse is followed by an equivalent negative current pulse. Devices with multiple channels (e.g. for several users or body regions) should have a small pulse isolation transformer for galvanic isolation in each channel, such that currents cannot flow across the body between channels. Pulse frequency, duration and amplitude should be selected to achieve the desired stimulation with the least amount of power delivered into the body, for example avoiding current during the refractory period after each action potential, where neurons do not respond to stimuli. Typical erotic electrostimulation devices use pulse frequencies in the range 300–3000 Hz, where skin nerves are most sensitive.

A few cases of

reckless endangerment after killing his wife with electrostimulation to her nipples directly from a power strip plugged into the mains.[7][8][9]

History

An assortment of erotic use insertable Violet Wand attachments known as electrodes. The tempered and evacuated glass tubes are back-filled with noble gas, causing them to emit sparks and glow with various colors when the violet wand is powered.

The use of electricity for entertainment purposes dates back at least as early as the 1740s. In the 1830s, insertable electrode attachments for small magnetos could be purchased. Later in the 1800s, various electric belts (some complete with "suspensory sack") were advertised as cures for impotence.[10] In the 1920s, the American Medical Association investigated such devices, and concluded that they provided "more or less mechanical masturbation".[11]

Modern[

Relax-A-Cizor,[citation needed] which was originally designed to stimulate the muscles of a relaxing subject using electric currents as a means of "passive exercise". Such power sources[dubious ] are still in medical use today and are known as EMS (electrical muscle stimulation
) units. Some people soon found alternative uses for the Relax-A-Cizors by placing the contacts on sexual parts of the body.

By the 1970s, medical TENS (transcutaneous electrical nerve stimulation) units were also being used for electrostimulation. In the 1980s the first devices manufactured specifically for erotic electrostimulation became available, in particular the Titillator and the Pleasure Box, later known as the PES Power Box.

In the 1970s, experimenters noticed that bare speaker wires could deliver a jolt and began using recorded and live sound for electrostimulation. At that time, there were no professionally made attachments for such play, so people built their own out of copper plumbing parts and other metal pieces with attention to

wave forms and also allow for the use of ambient sound or prerecorded wave forms like music or specially designed computer files for specific types of stimulation. There are now sites dedicated to the creation of MP3
files specifically for erotic journeys or symphonies, which can include such routines as rewards, punishments, very strong, and pleasantly soft portions.

Types of power sources

Medical power sources

There are repackaged

TENS and EMS
units marketed as erotic electrostimulation power sources. EMS units are designed to cause muscle contraction.

Body toning and massage units

An increasing number of "body toner" or "electromassage"-type power sources are being marketed directly to consumers. Though lacking in options compared to the more expensive specialized units, these have proven to be an inexpensive method for entry level practice.

Homemade power sources

Some people craft "homemade" electrostimulation power sources, or adapt or modify commercial products (such as a Hifi or DVD system) that were never intended for electrostimulation of the human body. These can be dangerous practices; such improvised devices not specifically designed for use on the human body can easily cause injury.[3] The risk is mostly twofold. First the device can supply too much power. Second the insulation of most devices is not suited for medical equipment. For example, a transient over-voltage on the mains input can damage the isolation of the transformer, resulting in the output terminals becoming live.

Erotic electrostimulation power sources

Erotic electrostimulation power sources are specifically designed and manufactured for erotic use on the human body. The first

key fobs. Units which can be powered by a 9 volt battery are preferable to those plugged into mains as they reduce the risk of accidental injury.[3]

Other methods

There are other medical methods that have led to patent filings, such as the discovery that placing electrodes in the spinal cord can induce pleasurable feelings leading to orgasm.[12] There are also various apparatuses, with external or internal stimulation.

  • U.S. patent 3,941,136: "Method for artificially inducing urination, defecation, or sexual excitation".[13]
  • U.S. patent 4,585,005: "Method and pacemaker for stimulating penile erection".[14]

Other kinds of apparatus use interferential currents with four surface electrodes to replace the internal electrodes.

Electrodes

An electrode is used to deliver the actual electrostimulation to the body.

Example of woman with electrode on the chest. This is not recommended due to the risk of cardiac arrhythmia.[3]

The image of the woman receiving electrostimulation shows a deprecated practice. Placing electrodes anywhere on the chest is risking current passing through the heart, which risks cardiac arrhythmia or arrest. The general rule for electrostimulation is 'only below the waist'.[3]

For erotic electrostimulation, these are typically items designed to be applied to the genitals such as vaginal plugs and shields,

CBT boards, cock rings, urethral probes, and other items for penile application. The pads used with TENS units are also used in the sexual application of electrostimulation. There are also electrified nipple and breast electrodes available, but while there is disagreement within the e-stim community about their safety the most commonly held consensus is 'only below the waist'.[3]

The electrodes can be made of

Conductive rubber
is a cheap, flexible and efficient option.

Violet wands

Erotec Violet Wand, from 2000

Violet wands were originally electric and neon testers, but are now split into two types: mechanical (Tesla Coil), and solid-state wands. They are used for the application of low current, high voltage (min 35 kV to max 65 kV typically), high-frequency electricity to the body, as such they are most commonly used in BDSM for erotic sensation play. Violet wands can deliver a variety of sharp, cutting, or piercing type sensations.

A violet wand typically consists of a hand-held "wand" made of plastic case which encases the mechanical (Tesla coil) or solid state components; a power cable, a collet (7/16" in the United States, 11 mm in Europe), and a cone. The collet is inside the cone end of the violet wand and is where glass and metal probes are inserted to be used with the wand. The cone is there to prevent sparks jumping from the collet directly to subject. Violet wands can be used anywhere on the body but should not be used around the eyes.[2]

Lubrication

insulator and hence reduces conductivity. Practitioners of electrostimulation select lubricants for compatibility with the material of the electrodes, as well as for desirable conductive properties, which can maximize the strength and quality of the signal.[3]

See also

References

  1. ^ "Erotic electricity". Las Vegas Weekly. 17 November 2009. Retrieved 2012-07-06.
  2. ^ .
  3. ^ a b c d e f g h Williams, D. (1998). "Guide to Erotic Electrostimulation". Zity.
  4. ^ "Treatment of Pain and Inflammation: Rehabilitation: Merck Manual Home Edition". Merckmanuals.com. Retrieved 2012-07-06.
  5. ^ IEC 60601-2-10:2012 – Medical electrical equipment – Part 2-10: Particular requirements for the basic safety and essential performance of nerve and muscle stimulators
  6. .
  7. ^ "York man gets 20-40 years in wife's electrocution". Archived from the original on 2018-08-14. Retrieved 2016-07-06.
  8. ^ "York County man accused in sex electrocution of wife". The Patriot-News. Craley, Pa.: PennLive.com. January 25, 2008. Retrieved 9 November 2010.
  9. ^ "Man accused of sex electrocution of wife". Craley, Pa.: 6abc.com. January 25, 2008. Archived from the original on 29 October 2013. Retrieved 9 November 2010.
  10. .
  11. . Retrieved July 6, 2012.
  12. ^ US patent 6169924, T. Stuart Meloy and W. Joseph Martin, "Spinal cord stimulation", issued 2001-1-2 . Retrieved 7 July 2012.
  13. ^ US patent 3941136, Louis Bucalo, "Method for artificially inducing urination, defecation, or sexual excitation", issued 1976-3-2 . Retrieved 7 July 2012.
  14. ^ US patent 4585005, Tom P. Lue, Emil A. Tanagho, and Richard A. Schmidt, "Method and pacemaker for stimulating penile erection", issued 1986-4-29 . Retrieved 7 July 2012.