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Publication numberUS2493155 A
Publication typeGrant
Publication dateJan 3, 1950
Filing dateJan 9, 1947
Priority dateJan 9, 1947
Publication numberUS 2493155 A, US 2493155A, US-A-2493155, US2493155 A, US2493155A
InventorsWilliam R Mcmillan
Original AssigneeMine Safety Appliances Co
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Apparatus for treating skin diseases
US 2493155 A
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Description  (OCR text may contain errors)

Jan. 3, 1950 w. R. M MILLAN APPARATUS FOR TREATING SKIN DISEASES Filed Jan. 9, 1947 Patented Jan. 3, 1950 STATES PATENT 2,493,155.

APBARATUS'FORZIREATINGSKIN DISEASES William R. McMillan, Library,-.l?a.,,assignor. to.

Mine Safety Appliances Company, Pittsburgh,

Pa:, a corpcrationof Pennsylvania Applicationfianuary 9, 1947 ;:S'erialjNo'. 720954 (Cl. Rit -172.1

4 Claims.

This invention relates to the treatment of diseased .skin and tissue and, in particular, to apparatusfor electrically supplying a therapeutic agent: to thearea. to be;- treated.

It has. been found highly beneficial to treat various. forms of; skin or tissuev diseases, such-as epidermophytoses (athletesfoot) or other. moldy infections,;.b v iontophoresis of copper orother like-therapeutic agents. This may be accomr plished by the.electrolyticprocess, in which cop,- per ions from theelectrolyte migrate to. and-into the diseased. tissues when the circuit isclosed. Less common processes include electro -osmosis orelectro-phoresis, andare Within the contemplation of the present .invention.

Oneof thehandicaps-of these, treatments is the danger of. electrically shocking the patient. Toprevent this,- a circuit hasbeen devised which canbe controlled either manually; or automatic.- ally so as to .provide averysmall ilowof current when 7 initially closed and. to gradually;- increase the current to. provide eventually {a relatively large flow Without causing discomfort .toithe. pa tient. Sucha circuit is" disclosed in Conrad Patent No. 2,263,205, and it is my intention to utilize that circuit with the-improved treatment device disclosed herein. As shown in the Conrad patent, the diseased "or'affected part is immersedfin an electrolyte containing a therapeutic agent. The solution is carriedin areceptacle, such as a common. pan, and the hands also are immersed in another solution carried in a separate pan. When electrodes, which are placedinthe pan, are connectediwith a source of electromotive force, the body serves as a conductor to close the. circuit and permit-the flow ofelectriccurrent. When the affected partis' a foot or hand, the treatment can be performed satisfactorily. However, it would-be extremely inconvenient, if notimpossible, to so treat other portionsof the body, such for instance, as an infection of the face, neck or arm. Further; theConrad'systemuses a large body 'massras; a..-conductor" in the circuit so; that any sudden surgezof currentdue .togartaulty cirrcuit or careless circuit control might cause undue l sensory or motor discomfort. When the patients hands are immersed in a solution in one pan, another person may be required to manipulate the current controls.

It is among the objects of this invention to vertical. section taken,

copper: sulphate. solution, 1'.-

mobilizeE the hands; during treatment; .andlwhich requires electricity to. flowthrough no morelt'han a. veryshortpath-inthe body Accordingto theinventionthe edge. of a. cup is. pressed against. theskin. around the diseased area, preferably by astrapbrtape. The cup holds the. electricvv conducting fluid which con,-

tains .theftherapeuticagent that. is. to besupplied to the aiiected. area electrically. Electric. con.-

ductors;. closely associated with the cup, are adaptedto be connected into. an, electric circuit of the type disclosed: in .theConrad patent. Qne

of the. conductors; extends. into the solution. in the-,cup,=,while the other: is inelectric. contact withthe-skimoutside of. the cup. The current flows through the conductors, the. conducting fluid and the diseased. tissue area. to. cause the therapeutic agent to treat that-area.

The preferred embodiment of the inventioniis illustrated. in.v the accompanying,-. drawing, of which Fig, .1 .is aplan view of the. devicein oper- ,ative positionon a-patientfsarm; vFig. 2.is.a..ver.-

ticalsection through the device on thearmtaken on lineIL-II ofiFig. 1; andFig. S is anenlarged onthe, line lit-Ill; of Fig. 1. p

The following detailed description of. this -invention will. have-reference to .itsapplication in theaprocess .of electrolytically, treating, .skin diseasesmith a .:solution such .as. copp er.sulphate,..but it is notto-be-limited to that, particular solution. skinfwill be used broadly herein to include tissue.

is-vheldin liquid sealing engagement with the arm by.:*an ;.elastic. strap; 3. or by;- other'meanss such as a suitable: harness: or- 'adhesive' tape. The end wall of the 01113,,WhiCh-1Sfitfth8-t01? intheadrawing, ia provided with an opening; encircled by a neck 34:- inswhichthere; isaremovable stopper or plug 5; Bygremoving. .thaplug, the; cup: can. be filled; on the --arm..to:' the; desired extent with a The-plug; and the cup are constructed of any suitabe material, such as glass, plastic or rubber, which is electrically non-conductive and which is not attacked corrosively by the electrolyte.

The plug is provided with an axial passage in which a rod-like copper anode 8 is mounted. This electrode seals the plug passage and extends into the electrolyte in the cup. On the inner end of the electrode is mounted an insulating cap ID to prevent accidental contact of the electrode with the skin. A set screw 9 is mounted in the outer end of the electrode to connect it to a wire I I leading to a suitable source of electricity, preferably the circuit shown in the Conrad patent re ferred to above. Encircling the lip of the cup is a ring-shaped copper cathode l2, which is positioned close to it. This electrode also is provided with a set screw [3 for connecting it to a wire l4 leading to the same source of electricity or circuit as the other wire I I. In order to provide a good electrical connection between the annular electrode and the skin, a ring it of fabric, such as gauze, is moistened with a conducting liquid, for example, a salt solution, and is inserted between the electrode and the arm. The moist conductor I6 is pressed against the skin by the ring electrode 12 which in turn is pressed toward the skin by four arms I 7 these, preferably, being, leaf springs. The upper ends of these springs are fastened to the side wall of the cup by rivets l8, while their lower ends bear against the cathode.

The electrodes are connected into a controlled circuit, such as the Com'ad circuit previously mentioned. Anode 8 is connected to the positive side of the circuit and cathode E2 to the negative side. The current passing through the copper sulphate and the diseased area of the arm causes copper ions to migrate to and be deposited on and in the diseased skin. The use of this small device, which can be attached to localized areas of various parts of the body, makes it easy and comfortable to treat many areas that could not have been reached satisfactorily with the old system using pans. This device also leaves the hands free, and does not require electricity to flow through a large part of the body.

According to the provisions of the patent statutes, I have explained the principle, preferred embodiment and mode of operation of my invention, and have illustrated and described what I now consider to represent its best embodiment. However, I desire to have it understood that, within the scope of the appended claims, the invention may be practiced otherwise than as specifically illustrated and described.

I claim:

1. In apparatus for therapeutically treating skin diseases, a cup having its edge adapted to be pressed against the skin around the diseased area, said cup being adapted to hold against said area an electrically conductive liquid containing a therapeutic agent, an electrode mounted in the wall of the cup with its inner end adapted to extend into the liquid therein, an annular electric conductor surrounding the cup, and resilient means connected to the cup and adapted to press said conductor against the skin, said conductor and electrode being adapted to be connected to a source of electricity to form an electric circuit through said diseased area of the skin.

2. In apparatus for therapeutically treating skin diseases, a cup having its edge adapted to be pressed against the skin around the diseased area, said cup being adapted to hold against said area an electrically conductive liquid containing '3 4 therapeutic agent, an electrode mounted in the wall of the cup with its inner end adapted to extend into the liquid therein, an annular electrode surrounding the cup, an annular moist conductor engaging the annular electrode, leaf springs secured to the cup and engaging the annular electrode to press said moist conductor against the skin, said electrodes being adapted to be connected to a source of electricity to form an electric circuit through said diseased area of the skin.

3. In apparatus for therapeutically treating skin diseases, a cup having its edge adapted to engage the skin around the diseased area, adjust- :able means engaging the cup for pressing it against the skin in sealing engagement therewith, said cup being adapted to hold against said area an electrically conductive liquid containing a therapeutic agent, an electrode extending through the wall of the cup with its inner end adapted to be immersed in the liquid therein, an annular electric conductor surrounding the cup, and an arm having one end secured to the cup and the other bearing against and pressing said conductor against the skin, said electrode and conductor being adapted to be connected to a source of electricity to form an electric circuit through said dis eased area of the skin.

4. In apparatus for therapeutically treating skin diseases, a cup having its edge adapted to be pressed against the skin around the diseased area, said cup being provided with an opening through which it can be filled with an electrolyte containing a therapeutic agent, a, plug normally closing said opening and provided with a passage, an electrode extending through said passage and sealing it, the inner end of said electrode being adapted to project into the electrolyte in the cup, an electric conductor surrounding the cup, a spring connected to the cup and adapted to press said conductor against the skin, said conductor and electrode being adapted to be connected to a source of electricity to form an electric circuit through said diseased area.

WILLIAM R. McMILLAN.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 116,004 Amer June 20, 1871 309,897 Thurston Dec. 30, 1884 1,573,116 Kobayashi Feb. 16, 1926 2,126,070 Wappler Aug. 9, 1938 2,263,205 Conrad Nov. 18, 1941 FOREIGN PATENTS Number Country Date 498,527 Great Britain Jan. 10, 1939 OTHER REFERENCES Electrotherapy and Light Therapy, Richard K0- vacs, copyright 1945, pages 602-604. Note Figs. 335-337 and page 603, lines 4-48.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US116004 *Jun 20, 1871 Improvement in attachments for vacuum-cups
US309897 *Dec 30, 1884 Device foe
US1573116 *Sep 2, 1924Feb 16, 1926Tsurukichi KobayashiThermatologic electrode
US2126070 *Apr 29, 1932Aug 9, 1938Charles Wappler FrederickElectrotherapy
US2263205 *Mar 24, 1939Nov 18, 1941Mine Safety Appliances CoApparatus for the treatment of skin diseases
GB498527A * Title not available
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3187745 *Aug 1, 1961Jun 8, 1965Melpar IncElectrodes
US3364929 *Dec 21, 1964Jan 23, 1968Burroughs Wellcome CoMethod for administering muscle relaxant drug
US3387608 *Jan 4, 1965Jun 11, 1968Ceskoslovenska Akademie VedElectrode for electromedical measurement
US3474775 *Feb 27, 1967Oct 28, 1969Johnson William RElectrode assembly for skin contact
US3580240 *Jan 17, 1969May 25, 1971Hoffmann La RocheDisposable electrode with self-sealing plug outlet
US3612061 *Feb 20, 1969Oct 12, 1971Inst Of Medical Sciences TheFlexible cutaneous electrode matrix
US4376437 *Jul 19, 1979Mar 15, 1983Sundheim Benson RTopical environmental device
US4557723 *Aug 18, 1983Dec 10, 1985Drug Delivery Systems Inc.Applicator for the non-invasive transcutaneous delivery of medicament
US4622031 *Oct 12, 1984Nov 11, 1986Drug Delivery Systems Inc.Indicator for electrophoretic transcutaneous drug delivery device
US4640689 *Mar 12, 1986Feb 3, 1987Drug Delivery Systems Inc.Transdermal drug applicator and electrodes therefor
US4708716 *Sep 16, 1985Nov 24, 1987Drug Delivery Systems Inc.Reservoir with battery for charging, driving the medicine; electrophoresis
US4713050 *Oct 24, 1986Dec 15, 1987Drug Delivery Systems Inc.Applicator for non-invasive transcutaneous delivery of medicament
US4767401 *Aug 26, 1982Aug 30, 1988Maurice SeidermanIontophoretic administration of ionizable or polar medicaments to a mammalian body
US4883457 *Jun 5, 1987Nov 28, 1989Drug Delivery Systems Inc.Disposable and/or replenishable transdermal drug applicators and methods of manufacturing same
US5087240 *Oct 30, 1989Feb 11, 1992Drug Delivery Systems Inc.Transdermal drug patch with conductive fibers
US5135480 *Nov 21, 1990Aug 4, 1992Elan Transdermal LimitedTransdermal drug delivery device
US5230703 *Apr 9, 1992Jul 27, 1993Staodyn, Inc.Wound infection resolution utilizing antibiotic agents and electrical stimulation
US5395398 *Jul 28, 1993Mar 7, 1995C. R. Bard, Inc.Microelectric apparatus for the antisepsis, promulgation of healing and analgesia of wound and chronic skin ulcers
US5840057 *Jan 27, 1995Nov 24, 1998Aloisi; AlessandroDevice for iontophoretic physiotherapy with frozen medicament crystals
US7037254 *Dec 5, 2003May 2, 2006O'connor MichaelControlled environment device
US7883487Dec 18, 2008Feb 8, 2011Shantha Totada RTransdermal local anesthetic patch with injection port
WO1986002277A1 *Jan 17, 1985Apr 24, 1986Drug Delivery Systems IncTransdermal drug applicator
WO2011031116A2Sep 14, 2010Mar 17, 2011Hee Gu KimPad for herbal medicine in which release of medicinal ingredient can be controlled, and manufacturing method thereof
Classifications
U.S. Classification604/20, 607/149, 607/153
International ClassificationA61N1/30, A61F13/00, A61F13/15
Cooperative ClassificationA61F13/8405, A61N1/044, A61F2013/8476, A61F2013/00919, A61N1/0448, A61F13/00063
European ClassificationA61N1/04E1I3, A61N1/04E1I1S, A61F13/00