Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.

Patents

  1. Advanced Patent Search
Publication numberUS3826245 A
Publication typeGrant
Publication dateJul 30, 1974
Filing dateFeb 9, 1973
Priority dateFeb 9, 1973
Publication numberUS 3826245 A, US 3826245A, US-A-3826245, US3826245 A, US3826245A
InventorsFunfstuck H
Original AssigneeStatham Instrument Inc
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Electrodes employing disposable electropods for cardiac instruments
US 3826245 A
Abstract
This invention relates to disposable electrode pads which may be used with cardiac devices, such as ECG, defibrillator or pacemaker devices. The pads are in the form of a foil bag containing an electrolyte. The bags are easily rupturable so that the electrolyte is applied to the surface of the human body.
Images(1)
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

United States Patent [191 Funfstuck July 30, 1974 [54] ELECTRODES EMPLOYING DISPOSABLE 1,667,817 5/1928 Noishiki 128/417 ELECTROPODS FOR CARDIAC 1,849,745 3/1932 Hoffman 128/418 INSTRUMENTS 2,943,627 7/1960 Howell l28/DlG. 4 X 3,487,827 l/l970 Edmark [28/206 E [75] Inventor: Horst Funfstuck, Oxnard, Calif. 3,601,126 8/1971 Estes 128/417 2;:

3,602,216 8/1971 Moe l28/2.06 Asslgneel g Instruments, -1 Oxnard, 3,702,613 1 mm Panico ct al. 1221/41? Filedi 1973 Primary Examinr-Richard A. Gaudet [21] App! 331,050 Assistant Examiner-Lee S. Cohen [52] US. Cl. l28/2.06 E, l28/DlG. 4, 128/417, [57] ABSTRACT [51] lm Cl 5" 2 This invention relates to disposable electrode pads 58] Fieid /2 06 E 2 i E DIG 4 which may be used with cardiac devices, such as ECG, E6 417 @4 6 1 defibrillator or pacemaker devices. The pads are in the form of a foil bag containing an electrolyte. The

bags are easily rupturable so that the electrolyte is ap- [56] g g gg gz plied to thesurface of the human body. 506,449 10/1893 Silsbce 128/1721 l'Claim, 5 Drawing Figures BACKGROUND OF THE INVENTION In all of the cardiac devices such as E.C.G. defibrillator or pacemaker devices, it is necessary to connect the device to the body of the patient by electrodes spaced from each other on the body. This requires that the electrodes make electrical contact with the body of the patient. It is usual, in this connection, to use creams and sometimes saline salt gauze pads applied to the electrodes to insure adequate electrical contact between the electrodes and the patient and to prevent Iocalized points of contact between the electrodes on the body. This requires preparation of the patient, when under some circumstances, time maybe'extremely critical as for example when defibrillation or pacemaker pulses must be applied. 4

STATEMENT OF THE INVENTION be mounted on the paddle'of the electrode and are easily removed and replaced when once used. The electrolyte may be a saline water or saline viscous of paste-like material or other conductive material used in this art. The pads are attached to the paddle surface by means of an adhesive backing on the side of the foil bag to be placed against the electrode paddle.

Various methods could be used for rupturing the foil bag; for example, the bag could have weak spots such as scoring formed in the foil so that when the paddle places a pressure upon the pad the bag willrupture and apply the electrolyte so that good electrical contact is made with the patient. Alternatively, a mechanical device may be attached to the paddle so that the foil bag is ruptured and the electrolyte issues to create the conductive path.

In order to insure the successful application of the electrolyte between the electrode surface and the body provide 1 may and preferably do provide a sponge, which may be of plastic foam, which is saturated by the electrolyte and which-is placed between the foil bag and the body member when the electrode is applied. This may be and preferably is attached to the side of the bag opposite to that to be placed against the electrode paddle.

DETAILED STATEMENT OF MY INVENTION This and other objects of my invention will be further understood by reference to the figures of which:

FIG. 1 is a schematic of a circuit which is one possible application of my invention.

' FIG. 2 shows one form of the electrode of my invention carrying the disposable pad of my invention.

FIG. 3 is a fragmentary view of FIG. 2.

FIG. 4 shows a section of another and preferred form of electrode showing the application of the disposable pad of my invention.

FIG. 5 is an exploded view of the disposable pad of my invention. I

FIG. 1 shows a circuit for application of my invention to an ECG unit or a defibrillation unit or a combina tion of the two illustrating that combination. Other types of cardiac systems may be employed, for example, the form'described'in Public Health Reports No. 11 November 1966 at page 1,042 and 1,043.

The switch 1 may be'placed in any position but is conveniently mounted upon the electrode, for example, electrode 8 of the electrode pair 7 and 8.The closing of the switch 1 actuates the relay 2 which actuates the switches 3 and 4. As shown, theswitches are in position to connect the high voltage source to the condenser 5 to charge the condenser. When switch I is closed, the relay. pulls the contact from position contacts 3 and 4 to contact'6-and a pulse is applied to the electrodes 7 and 8. The E.C.G. unit 9 is connected to the electrodes 7 and 8m that the heart is monitored at all times and is protected by the capacitor and diodes and resistor system in junction box 10. Since the aforesaid system is not a portion of my invention but merely illustrates onepossible use of my invention, it need not reduce the time and make the preparation of the patient more convenient.

FIG. 2 shows one illustration of an electrode using the disposable pad of my invention. The pads 13 consists of a bag formed of a metallic foil sheet 1'] and 12 which are sealed at the edges at 14 by cementing, crimping or welding the outer edges together; The bag filled with an electrically conductive material 15 such as a saline solution or with a conductive jelly or other equivalent electrically conductive liquid or semi-liquid conductive material for example such as has been used to insure electricalcontact between the electrode and the body. Methods of filling foil bags with material for example, ketchup or mustard, are well known and may be used for this purpose.

The side to be placed against the electrode may be and preferably is coated with an adhesive material for example, a pressure sensitive adhesived for attachment of the bag to the underneath side of the paddle of the electrode. The lower side of the lower foil 12 is adhesively connected to a sponge 16. The sponge 16 may be of any sponge sheet material and in my preferred embodiment is a urethane foam or a similar rubber foam sheet. While not essential to my invention, a sponge saturated with the conductive fluid may be placed inside the bag formed at the foil sheets 11 and 12 with the edges of the foil sheets sealed to each other.

As is illustrates in FIGS. 2 and 3, the pad may be adhesively mounted in the electrode 7 or 8 which are 18 is bored with a bore 21 and the punch 22 is mounted,

7 3- in the ring and carries a needle 23 mounted in the punch 22. A needle limit motion stop is provided in the form of a slot 23' which is mounted a stop pin 24 connected to the needle 23 so that when the head 24' is depressed against the spring 25 the needle punctures the foil sheet 11 and 12 of the bag permitting the material in the bag to saturate the sponge 16 when the electrode is pressed against the body compressing the bag. On reneedle having retracted, it will not injure the patient when pressure is applied. As shown in the form illustrated in FIG. 2 the electrode is provided with a handle 17.

The form in FIG. 4 shows an alternative form. The electrode 8 is a hollow member made of plastic or other insulating material with a guard disc 26 and carrying the switch, 1 with the suitable electrical connections connected to the terminal 28. The electrode is connected by means of the electrode terminal 28 which makes contact with the metallic plate 29 to which foil bag is connected. In this case, the foils of the bag may be sufficiently weakened at suitable localities as by lease of pressure on head 24' the needle retracts. The

scoring so that when pressure is applied to the electrode plate 30 the envelope is compressed and stretched and ruptured at the weakened portions on the surface. Rupture will occur in the foil 12 and permit the fluid to escape to saturate the sponge 16.

I claim:

1. An electrode for electrocardiac machine comprising a metallic sheet, a handle to which said sheet is mounted, an electrical connection insulated from said handle and electrically connected to said metallic sheet, a closed foil bag having two sides, one side being mounted on said metallic sheet, an electrolyte in said bag, and a sponge connected to the side of the bag opposite to the aforementioned side adhesively connected on said metallic sheet, a retractable punch mounted on said handle adjoining said foil bag, and means connected to said punch for moving said punch through both sides of said foil bag, whereby said punch punctures said bag to permit electrolyte to escape from said bag into said sponge.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US506449 *Jun 30, 1893Oct 10, 1893 Method of treating diseases electrically
US1667817 *Jan 26, 1927May 1, 1928Yoshitoshi NoishikiElectrode
US1849745 *Sep 4, 1930Mar 15, 1932Hoffman Herman SElectrode device
US2943627 *Apr 5, 1957Jul 5, 1960Howell William LElectrode
US3487827 *Jan 24, 1968Jan 6, 1970Physio Control CorpElectrode for electromedical equipment
US3601126 *Jan 8, 1969Aug 24, 1971Electro Medical Systems IncHigh frequency electrosurgical apparatus
US3602216 *Sep 16, 1969Aug 31, 1971United Aircraft CorpPaste dispensing body electrode
US3702613 *Mar 4, 1971Nov 14, 1972Health Systems IncElectrolyte envelope for use on the active surface of a defibrillator paddle
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3942533 *Oct 17, 1974Mar 9, 1976Cannon Robert L IiiCardiac defibrillator depolarizing paddle arrangement
US3961623 *Jan 17, 1975Jun 8, 1976Medical Research Laboratories, Inc.Method of using a disposable electrode pad
US4079731 *Jul 1, 1976Mar 21, 1978Cardiolink Electrodes, Ltd.Medical electrodes
US4432367 *Mar 3, 1982Feb 21, 1984Piesinger Gregory HFor receiving electric impulses produced by the heart muscle
US4693711 *Apr 19, 1985Sep 15, 1987Bremer Roger ELong-life biomedical transcutaneous drug application device and method of transcutaneous application of drugs
US4850356 *Feb 9, 1988Jul 25, 1989Darox CorporationDefibrillator electrode system
US4895169 *Feb 9, 1988Jan 23, 1990Darox CorporationDisposable non-invasive stimulating electrode set
US4928690 *Apr 25, 1988May 29, 1990Lifecor, Inc.Portable device for sensing cardiac function and automatically delivering electrical therapy
US5062426 *Nov 26, 1990Nov 5, 1991Ems Products, Inc.Fetal heart monitor leg plate electrode
US5078134 *May 29, 1990Jan 7, 1992Lifecor, Inc.Portable device for sensing cardiac function and automatically delivering electrical therapy
US5213113 *Jan 22, 1992May 25, 1993Physio-Control CorporationDisposable internal electrode with sterilization shield and method of using the same
US5474574 *Jun 24, 1992Dec 12, 1995Cardiac Science, Inc.Automatic external cardioverter/defibrillator
US6148233 *Mar 6, 1998Nov 14, 2000Cardiac Science, Inc.Defibrillation system having segmented electrodes
US6366795May 5, 1999Apr 2, 2002Biosignal PartnersBiomedical electrode with vital skin penetration
US6546285Aug 31, 2000Apr 8, 2003Cardiac Science, Inc.Long term wear electrode for defibrillation system
US7668604Jun 16, 2004Feb 23, 2010Conmed CorporationPackaging for medical pads and electrodes
US8441771Jul 9, 2010May 14, 2013Taser International, Inc.Electronic weaponry with current spreading electrode
US8587918Jul 23, 2010Nov 19, 2013Taser International, Inc.Systems and methods for electrodes for insulative electronic weaponry
DE4033863A1 *Oct 22, 1990Apr 23, 1992Bruno Dr Rer Nat IsmerCircuitry detecting and influencing electro-physiological structures - applies electric current by electrodes connected to detection amplifier and via gas discharge tubes in series with input resistance
EP0020288A1 *May 22, 1980Dec 10, 1980BIOTRONIK Mess- und Therapiegeräte GmbH & Co Ingenieurbüro BerlinJelly electrode adapted to collect bio-electric signals
EP0082728A2 *Dec 22, 1982Jun 29, 1983Frantz Medical Development Ltd.Biomedical skin electrode, and method of transferring electrical current
EP0339471A2 *Apr 19, 1989Nov 2, 1989Lifecor, Inc. (Pennsylvania Corporation)Portable device for sensing cardiac function and automatically delivering electrical therapy
EP0459239A2 *May 16, 1991Dec 4, 1991Lifecor, Inc.Portable device for sensing cardiac function and automatically delivering electrical therapy
WO2005016445A2 *Aug 3, 2004Feb 24, 2005Thomas AisenbreyLow cost electrical stimulation and shock devices manufactured from conductive loaded resin-based materials
Classifications
U.S. Classification600/397, 607/142
International ClassificationA61B5/0408, A61N1/04
Cooperative ClassificationA61B5/04085, A61N1/0492, A61N1/046
European ClassificationA61N1/04E2P, A61N1/04E1S, A61B5/0408D
Legal Events
DateCodeEventDescription
Sep 18, 1987ASAssignment
Owner name: BANK OF AMERICA NATIONAL TRUST AND SAVINGS ASSOCIA
Free format text: SECURITY INTEREST;ASSIGNOR:SPECTRAMED, INC.;REEL/FRAME:004760/0296
Effective date: 19870619
Nov 24, 1986ASAssignment
Owner name: GOULD INC., A CORP. OF DE.
Free format text: MERGER;ASSIGNOR:STATHAM INSTRUMENTS, INC., (MERGED INTO);REEL/FRAME:004635/0307
Effective date: 19861213
Nov 24, 1986AS03Merger
Owner name: GOULD INC., A CORP. OF DE.
Effective date: 19861213
Owner name: STATHAM INSTRUMENTS, INC., (MERGED INTO)
Oct 23, 1986ASAssignment
Owner name: SPECTRAMED, INC., 1500 QUAIL STREET, NEWPORT BEACH
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:GOULD, INC., A CORP OF DE.;REEL/FRAME:004625/0414
Effective date: 19861007
Oct 20, 1986ASAssignment
Owner name: CALIFORNIA FEDERAL SAVINGS AND LOAN ASSOCIATION
Free format text: SECURITY INTEREST;ASSIGNOR:SPECTRAMED, INC., A CORP OF DE.;REEL/FRAME:004696/0024
Effective date: 19861006
Owner name: SPECTRAMED, INC.,
Free format text: LICENSE;ASSIGNOR:CALIFORNIA FEDERAL SAVINGS AND LOAN ASSOCIATION;REEL/FRAME:004696/0048
Oct 3, 1986AS02Assignment of assignor's interest
Owner name: BUBECK, WALTER
Effective date: 19860309
Owner name: DR. KARL THOMAE GESELLSCHAFT MIT BESCHRANKTER HAFT
Owner name: GLASEL, VOLKER I.
Effective date: 19840319
Owner name: GRUBER, PETER
Owner name: VOSS, GUNTHER M.
Effective date: 19860323
Oct 3, 1986ASAssignment
Owner name: DR. KARL THOMAE GESELLSCHAFT MIT BESCHRANKTER HAFT
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNORS:VOSS, GUNTHER M.;GLASEL, VOLKER I.;GRUBER, PETER;AND OTHERS;REEL/FRAME:004615/0359;SIGNING DATES FROM 19840319 TO 19860323