US1278675A - Electrotherapeutic apparatus. - Google Patents

Description

nono; or usmaorn:

1 'nnnornocrnnnarnuirrc )Arran-urns! Y the-Empire 0f Japan, residing' have.' invented jc'en'tain`- new which the `following is a'specification.

This invention relates t o electro'-tlierapeuf lof comparatively 4low frequency and voltage The obj ect of my inventio'nf-isfto 'provide an .apparatus wherein a current 'of very high frequencyfand voltage and a second current at the same or ldii'erent times without cansing short-circuit,wherebyjoint or' alternate lin appliqatonmaybe made t0 a patient accord- 'to the-SYIDPOIDS 0f the disease. 's

' he accompanying drawing showsran-'eze ample of the circuits according to theinvenj tion.

cuit whereby lsioncurrent, produced by the discharging' action of a condenser, flows through a hue; nf.1an.body,l1is' the samev as-the one commonly 'known as *diathemilie,l l and ma In `'my invention, fthe arrangement' of cnfthe high frequency,

be 'de-'A scribed briefly as follows with re erence to .the drawing:

10 which are Ato A-prirnary circuit 1 whichmay bejcon#` "nected with a -.suitable alternating current `source includes the primary coil 21 of' -a transformer-2, and the secondary coil 22 of the latter forms part of a circuit?) which is. provided `with a discharging'gap 4e, .ajcon`. denser 5: and a 'primary coil- 61 for inducing current in a `further circuit?. A secondary, coil 62 corresponding-to the primary coil 61 forms part of the' circuit, which also includes a condenser 9, and two o ontactsl', beapplied tov the human body to be'treated sci asto cause an oscillay tory. current of'very high frequency to flow lthrough the part affected.A Inor'der to-ob- "tain a brush-likedischarge, when required, it iscnvenient to provide an'induction coil to the secondary 8 arranged' concentrically I brush 'l1/1n the coil and va -dis charging circuit ofthe secondary coil 8'. When using this faeviee the appar-'One of 'the anagrafici,-

held 'i clsc to the part requiring the :medical treatment. The v.e'sser'itial as follows:-

f A .Circuit- 11'2'1. is; provided *branching out. :from thetwo .pole's of the condenser9, and' -.1nc li 1ds the-secondary -coil 132 of a small in'- duction'coil 13-with' -ai niovableiron .core 133,

and the- 'primary ccil; :131' vof said induction,

coilforms ApartQo ':a circuit 121 whi'ch i'ncludes anj'interrupte 14,13, commutat'or 18 herein liter des 1bed, the 'coil '.21 andags'witch ning-- ianfd'g'fclosing; the 1circuit. A

element may also be arranged a'sv ShOWl `for thejtreatment' ofithe'patient-by heat,v

'j The 'abdve-mentioned'--. comrnutator com# `prises' a lever-shaped member 181 oscillating on an' axis. 17.' 'as its'center,its twoarms being insulated from' eaclif o tl'er1fand respectively arranged :to i.touch-5th@"contact points -192 are' vre's pectively cc'uifneitedjiu/ith the secondary; co1 andthegpriniary coil '2 1 of the trans-fcrm'e'r. 2`. ':The contact point 191 is connected thro-ugha conductor'21,with contact.

point 20, andfsaidj contact point 20 'with the circuit-1, and-'the contact point 1921.is conlnected to the circuit. The point. "at which the circuit12'1Y connects lwiththe primary coil Y21 .of the transformer 2' .may b TegU1afQd.,

rlhe contacts 192, 191and 20 are sov arranged. that when ,the Aright-hand,-a 'r1 'n .of 4 the com# mutator 18 vtouches the contact point 191 the otherv arni will't'ouch the contactpoint '192 and when" thev former' touches* the Contact point 20, thelatter'will-ln1ove ofi' oi the centact` point-192.: The contact point 191,` is preferably. elongatedas shown in the draw ing, so that when the commutator is being points ofthis invention are s 5.5.

moved over'fro'm the position show nthecircuit'l is Vopened before the circuit 3. A'If the; commutator is positioned through the arm-181, contact point 191, conductor 21 and contact point 20, and the cir-- cuit vis also closed through the other arm afs indi;- lca'ted'in the drawing', the circuit 1 isrclosed 181 and contact point 192 with the result that an oscillatory currentof very high frequency' will be setup in the circuit 7. It at this time the switch 15 in the circuit 1'21 is open andthe heating element 16 cut out or re-4 movedrthe induction coil 13 produces no action 'and consequently only a very high frequency currentof hightension will exist in the circuit 7. But if the-switch 15 is closed,-

duction coil 13, and consequei'itlyv there will' be two currents induced in the circuitI T. The

high frequency, high tension, current pro duced by the coil 61 and the comparatively low frequency, low tension current produced 'by the coil 131 are quite dierent in their nature, that is to say, the former only iows with difficulty through a coil having self induction, and the latter will not iow through al condenser. Thus, in the present apparatus, the high 4frequency current will close its circuit only through the condenser 9 regardless ot' the circuit 122 and the lcurrent from the coil 132 will flow through all parts of the circuit T, without short circuiting through the condenser 9. Accordingly both currents will flow into the circuit T which includes the human .body under treatment) without interfering with one another.

If the right-hand arm 181', ofthe commutator 18 is now moved to the contact point 20, the other arm 181 moves away from the contact point 192 and the circuit 3 is opened but the other circuits remain closed, with the result that only the current due to the induction coil 13 will flow in the circuit 7. lith die parts thus connected the circuit 1 may,

of course, be regulated by the operation of an auto-transformer, or the current in the circuit 121 by moving the iron core 133 othe induction coil 13. As mentioned above,-

this invention is characterized by the fact that the two dierent kinds of current are, at the same or at dierent times, iii-ade to flow through what might be termed the operating circuit viz: the circuit T which includes the body of the patient. The high frequency current obtainable by the action ot' the coil (51 mainly raises the temperature ot the human body and gently operates on cells of human body but it does not give any electric shock to the nerves when said current flows through the body. Thus such .electricl current has a bactericidal eti'ect for medical treatment. The current derived from the induction coil `13 chieiiy acts on the nerves and has as its main effect the cure of fatigue of the human body. Therefore,

Y obtained.

it both of said currents be applied :simultaneously, there may he manv case wherein remarkable elcctrothcrapeuticgeiifccts'may be It is uneconomic I t f'provide both of these arrangements separately, and even if both be provided separately but in a .single apparatus, it requires a large number of regulators, switches` etc., and it is troublesome in practice. Ininy apparatus, the comparatively low frequency, loiv tension circuit branches out from the two poles of the condenser inserted in the operating circuit, and thetwo kinds of electric current may be used together so as to suitl the requirements of the patient without causing short circuit and thus the arrangement of circuits may be made very simple. Besides, as the two currents can be applied at the same or diierent time, it is very easy to handle the apparatus and various effects in the medical treatment will beobtained.

Having thus described my invention, what I claim and desire to secure by Letters Patent is:

1. In an electro-therapeutic apparatus the combination of a portion of a circuit having terminals adapted to be applied to the body ot' the patient, means for producing a very high reQuency,hightension current in said circuit. which includes a condenser, an induction coilthe secondary coil of which is connected to the tivo poles ot' said condenser, and a main currentsupply which feeds the primary coil of said induction coil and also provides the current for inducing the said high frequency, high tension current.

2. In an electro#therapeutic apparatus the combination oi' a portion of a circuit havin terminals adapted to be applied to the body of the patient, means for producing a very high frequency. high tension current in said circuitwhich includes a condenser, an induction .coil` the secondarycoil offyvhich is connected to the vtwo poles of said-condenser,

a main current supply which feeds the primary coil ot" said inductit-m .coil and also provides the current for inducing thefsaid high `frequency, high tension current, a switch for controlling the iiow of current from the main current. supply to the primary coil of said induction coil, and a commutator for controlling the action ot' theinain currentsupply upon the iii-st mentioned circuit.

3. In an electro-therapeutic apparatus the combination of a portion of a circuit having terminals adapted to be applied to the body of the patient, a condenser and the secondary coil of a transformer: a second circuit including the primary coil of said transformer, a spark gap and the secondary coil ot' a sec- .ond transformer; a second condenser connected across the ends of thc lattersecondary coil; a main supply circuit including the primar y coil of said second transformer; an

eis

Lumen y 3 nductionol the secondary coil of whch is In testimony whereof I hni'e-.vaxed my Connected c n the two polosof the. Erst-mow .Qignnhn'e in prvsvwio of' two wtnccs. tohed Cqndeusqr: q crcut. invlqdng the pr- YSH l NA() NAW" ITL unify-C011 of sind mduct-xon coll :1nd rocmving current from said main curieut. Supply: :l Nftnesses:

switch in the last-mentioned circuit; and nv DEN Kum.'

Comunit-atm' in said seco'nd circuit. f lsHmO ABF..

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