Surgery – Body protecting or restraining devices for patients or infants – Restrainers and immobilizers
Patent
1987-09-30
1990-05-01
Cohen, Lee S.
Surgery
Body protecting or restraining devices for patients or infants
Restrainers and immobilizers
A61N 132
Patent
active
049209817
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The invention has as an object an apparatus for relief of pain and contractions using discharges of sparks especially of piezo-electric origin, of which one of the poles is in direct contact with the skin.
BRIEF DESCRIPTION OF THE PRIOR ART
The state of the art can be defined by the following patents: FR-A-1,092,420, FR Addition 65,169, DE 2,117,917 and the DERVIEUX patents No. 2,500,745 and 2,563,735.
DERVIEUX patent No. 2,500,745 describes an apparatus with a unipolar electrode, one electrode of which is grounded either by a plate held by the patient, or by an already implanted electrode, or the patient is in contact with a handle which is conductive (which has several disadvantages).
DERIVEUX patent No. 2,563,735 describes an apparatus using bipolar electrodes discharging sparks of which the individual characteristics, shape, and the characteristics of their support permit the apparatus to be at a certain distance from the skin by means of an isolating separation.
This apparatus also has several disadvantages.
Thus, this apparatus does not permit discharging the same sparks on moist skin, or adjustment of the intensity.
The apparatus according to the invention seeks to improve this latter apparatus.
SUMMARY OF THE INVENTION
To this end, the apparatus comprises a bipolar electrode which comprises one or several metallic electrodes for direct contact with the skin connected to a pole, as well as one or several discharge electrodes for the other pole, isolated from the first and permitting discharge of sparks against the skin by automatically spacing the metallic discharge electrode.
The apparatus may comprise a means permitting varying the intensity of the spark discharges and/or varying the spacing of the discharge electrodes with respect to the skin:
(1) the apparatus may comprise a means serving as an adjustable abutment which permits varying the course of the articulated handle which actuates the piezo-electric generator of the mechanical type, and thus permits decreasing the intensity and adapting the emitted current to the sensitivity of the subject being treated.
(2) the apparatus may comprise a means automatically and adjustably spacing the spark-discharging electrode from the skin, or from the plane of contact serving as the contact electrode, either by a means acting as a roller or by a pushbutton provided, if desired, with a gear reduction lever having two or more positions.
BRIEF DESCRIPTION OF THE FIGURES
The accompanying drawings given by way of indicative and non-limiting example will permit easy understanding of the invention. They show a preferred embodiment according to the invention.
FIG. 1 is a front view of the apparatus.
FIG. 2 is a rear view of the apparatus.
FIG. 3 is a side view of the apparatus.
FIGS. 4 to 14 are views of various heads of the apparatus showing the characteristics especially of the contact electrode.
FIGS. 4 and 5 are front and side views of a central contact electrode.
FIGS. 6 and 7 are front and side views of a peripheral contact electrode.
FIGS. 8 and 9 are front and side views of a contact electrode having small cavities.
FIGS. 10 and 11 show an embodiment wherein the contact electrode is a peripheral electrodes as in the embodiment shown in FIGS. 6 and 7, but where there are two spark-discharging electrodes 6.
FIGS. 12 and 13 show an embodiment wherein the electrodes are formed as toothed wheels of different diameter and polarity (body contacting the skin-rollers spaced therefrom).
FIG. 14 is a side view along the line A--A shown in FIG. 13.
FIGS. 15 and 16 show a detail of the apparatus at the level of the button for varying the intensity.
FIGS. 17 and 19 show an embodiment wherein the adjusting button is disposed at the level of the end of the sleeve (and/or of the handle) and wherein the slot is longitudinal.
FIGS. 18 and 20 show an embodiment wherein the adjusting button is disposed at the end of the sleeve (and/or of the handle) and wherein the slot comprises a leg.
FIGS. 21, 22 and 23 are sectional views of the appa
REFERENCES:
patent: 3994300 (1976-11-01), Siddons
patent: 4043342 (1977-08-01), Morrison, Jr.
patent: 4476862 (1984-10-01), Pao
patent: 4572194 (1986-02-01), Head
patent: 4741347 (1988-05-01), Robert et al.
Cohen Lee S.
Societe Anatomia - La Boutique du Dos
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