|Número de publicación||US3380445 A|
|Tipo de publicación||Concesión|
|Fecha de publicación||30 Abr 1968|
|Fecha de presentación||24 Sep 1965|
|Fecha de prioridad||24 Sep 1965|
|Número de publicación||US 3380445 A, US 3380445A, US-A-3380445, US3380445 A, US3380445A|
|Inventores||Frasier Jordan D|
|Cesionario original||Int Rectifier Corp|
|Exportar cita||BiBTeX, EndNote, RefMan|
|Citas de patentes (3), Citada por (101), Clasificaciones (7)|
|Enlaces externos: USPTO, Cesión de USPTO, Espacenet|
J. D. FRASIER April 30, 1968 3,380,445
ELECTRICAL PICKUP STRUCTURE FOR ELECTROCARDIOGRAPHS AND THE LIKE Filed Sept. 24, 1965 1 N VEN'I'OR Maid/4N 12 1964676? United States Patent 3,380,445 ELECTRICAL PICKUP STRUCTURE FOR ELECTRO- CARDIOGRAPHS AND THE LIKE Jordan D. Frasier, Orange, Califi, assignor to International Rectifier Corporation, El Segundo, Calif., a corporation of California 7 Filed Sept. 24, 1965, Ser. No. 489,915 Claims. (Cl. 1282.06)
ABSTRACT OF THE DISCLOSURE An electrical pickup structure for an electrocardiograph consisting of three electrodes mounted in the lobes of a cloverle'af shaped flexible support having a thin central web. The leads for each of the electrodes are taken out through a common stem.
This invention relates to an electrical pickup structure, and more particularly relates to a novel electrode construction for the electrodes of an ele'ctrocardiog'raph, or for a heart pulse pickup.
It is well known to connect electrodes to the human body with the use of a suitable jelly for decreasing contact resistance, whereby the output electrical signals developed between various electrodes will indicate various functions or the heart. In addition, such arrangements may be used for monitoring the heartbeat.
In the standard prior art arrangement of such electrodes, the electrodes are individually applied to the body resulting in a large number of awkwardly placed lead Wire's inhibiting the patients movement. If these electrodes must remain in place over a long period of time, as when used for intensive care patients, the patients movements are unduly hampered and, more serious, his move ment can cause the generation of spurious signals into the monitoring electrical equipment because of physical movement of the electrode with respect to his body.
Furthermore, with the prior art arrangement and where the electrodes must remain attached to the body for an appreciable period of time, the jelly used for improving contact resistance is exposed to the air and will dry out rapidly unless covered with a suitable bandage.
A further problem with the prior art individu'al electrode arrangement, especially inan emergency situation, is the relatively long length of time required to individually coat the electrodes with jelly, individually place them on the body and hold them secure to the body.
The present invention provides a novel electrode structure adapted for connection to standard cardioscopes or other electrical signaling monitoring equipment in which a plurality of electrodes are contained within respective cups formed in a common resilient, rubber-like body.
In a preferred embodiment of the invention, the support body arrangement resembles a shamrock wherein the central web provides great flexibility to the extending lobes which have electrodes embedded therein. These electrodes, which are contained within cup-shaped lobes, then may be covered with "a suitable jelly simply by dropping some suitable amount of jelly within each of the cups, whereupon the entire assemblage can be immediately placed upon the patients body in any suitable location.
The leads extending from the individual electrodes are carried out through 'a common cable conductor which is terminated by a suitable cable multi-terminal connector. Thus, only a single wire extends from the multi-electrode structure as contrasted to the nest of wires commonly associated with electrocardiogram monitoring equipment. Moreover, since the jelly is contained within cups which a're intimately secured 'to the body, the jelly does not 3,380,445 Patented Apr. 30, 1968 ice dry out as rapidly as when it is exposed. Furthermore, where the structure is to be secured against patient movement, a simple st-rip of tape will retain all of the electrodes rigidly in position with respect to the patients body, thereby decreasing possibility of spurious signal generat-i-on due to the relative movement of the electrode and the body.
In the novel arrangement, with each of the electrodes contained in a common flexible body and with the electrodes embedded in cups which serve as jelly receptacles, the device can be immediately utilized in emergency situations, or at least provides an exceptionally convenient instrument for the use of a doctor or technician in nonemergency situations.
Moreover, by carrying the electrodes in a flexible body, each of the electrodes can deflect with respect to the remaining electrodes and follow the contours of the body port-ion on which the assemblage is placed.
Accordingly, a primary object of this invention is to provide a novel electrode structure for use with medical electrical equipment,
Yet another object of this invention is to provide a convenient means for connecting a plurality of electrodes to the hum-an body.
A further object of this invention is to provide a multielectrode structure for connection to the human body which can be rapidly used in an emergency situation.
Another object of this invention is to provide a novel m'ulti-elect-rode structure wherein the individual electrodes are contained within a common flexible support which can follow the contours of the human body.
A still further object of this invention is to provide a novel multi-electrode structure for cardioscopes, or the like, which decreases the generation of spurious signals to the cardioscope.
These and other objects of this invention will become apparent from the following description when taken in connection with the drawings, in which:
FIGURE 1 is a rear plan view of 'a first embodiment of the invention wherein three electrodes are contained within a shamrock-shaped flexible container.
FIGURE 2 is a side view of FIGURE 1 partially in cross-section to illustrate the configuration of the cup walls which contain the electrodes.
FIGURE 3 is a front view of the device of FIGURES 1 and 2 and particularly illustrates the cups and the exposed electrode surfaces for the electrodes contained within the cups.
FIGURE 4 is a schematic circuit diagram illustrating the electrical conductors extending from the electrodes through the terminal cable.
FIGURE 5 is a front view of a second embodiment of the invention in which the support structure is triangular in shape.
FIGURE 6 is a front view of the third embodiment of the invention wherein the support is of a rectangular shape.
Referring now to FIGURES 1, 2 and 3, which illustrate the shamrock-shaped embodiment of the invention, a plurality of electrodes 10, 1.1 and 12, which are each suitable for connection to the human body, are contained within respective cups 13, 14 and -15 which are (formed integrally in a common flexible support body having the central connecting web 16.
A sheath 17 which is integral with the web 1 6 extends downwardly between the lobes defining cups [l3 and 15, and an electrical cable 18 extends from the end of sheath 17.
The individual electrodes 10, 1-1 and 12 may be of the standard type used in electrocardiograph work. Good results have been obtained through the use of a nickel- 3 silver disk having a diameter of 1 /3 inches and a thickness of 0.03 inch. It has been found useful to sandblast the outer surfaces of electrodes 10, '1'1 and '12, mainly to prevent their discoloration by the commercially available jellies which are normally used.
Each of electrodes 10,11 and 12 then have respective conductors electrically connected thereto, as schematically illustrated in FIGURE 4, as the conductors 20, 21 and 22, respectively.
In forming the assemblage, as will be described more fully hereinafter, the conductors through 22 extend below the integrally molded ribs 23, 24 and 25, respectively, at the generally flat rear surface of the assemblage, and extend downwardly to the common shielded cable 18. Note that the cable 18 will be relatively long and could have a length, for example, of 12 feet, and is terminated by a standard multi-terminal connector that will be connectable to any standard cardioscope.
Each of the cups 13, 14 and 15 have a wall shape best shown in FIGURE 2 at the upper portion thereof for the wall 140 of cup 1 4. Note that the electrode 11 is captured within a shoulder formed at the interior beginning of wall 14a. Each of electrodes 10, 1'1 and 12 are captured within their respective cups 13, 14 and 15 in the same manner.
In forming the novel structure of the invention, the electrodes 10, '11 and 12 are connected to their respective conductors 20, 21 and 22 which terminate the preformed cable 18 and are stripped at the ends thereof to permit the desired electrical connection. Thereafter, the electrodes are placed within a plastic mold into which the flexible material is poured to form the shape shown in FIGURES 1, 2 and 3 after setting.
In particular, any typical well-known flexible material could be used in the molding operation.
As a typical example of the dimensions which could be used with the present invention, in the device of FIGURES 1, 2 and 3, the lobes are separated from one another by approximately 105. The overall thickness or height of the cup was /2 inch, While the thickness of the central web 16 was A; inch. The electrodes 11, C12 and 13 extended approximately /52 of an inch into the walls of their cups, thereby obtaining good securement, and the cup walls extended approximately /s of an inch beyond the ends of the electrodes. The length of sheath 17 from the center of web 16 was approximately 2% inches, and the distance from the center of the web to the outer periphery of cups 13, :14 and 15 was also approximately 2% inches.
Thus, the entire molded arrangement could lie within a circle having a radius of 2% inches. The ribs 23, 24 and 25 extended approximately Ms of an inch beyond the flat surface of the rear of the support at the center of web 16 and taper downwardly 'as they approach the outer periphery of their respective cups. Each of the cups then had a diameter of approximately 1% inches at their outer periphery.
Clearly, any suitable method of manufacture or of embedding electrodes within a common flexible support could be used within the scope of the present invention.
While the shamrock-shape of FIGURES 1 through 4 has been found to give particularly good results, especial- .4 J I I ly when using a thin, "central web '16 to provide the required flexibility, it will be apparent that other shapes could also be used, and that other numbers of electrodes could be carried in the common support.
By way of example, FIGURE 5 illustrates that the electrodes 10, 1 1 and 12 can be formed within cups 40, 4'1 and 42 which are integral with a triangular base 48 having an integral output sheath 44. In a similar manner, a rectangular support could be used, as shown in FIGURE 6, wherein the electrodes 10, I l and 12 are contained within jelly-receiving cups 50, 51 and 52 carried on the rectangular web 53 having the output sheath '54. Clearly, any other number of shapes such as oval shapes, diamond shapes, or the like, which would permit suflicient flexure of the individual cups to conform to the contours of the body would be suitable for use with the present invention.
Although this invention has been described with respect to its preferred embodiments, it should be under-stood that many variations and modifications will now be obvious to those skilled in the art, and it is preferred, therefore, that the scope of the invention be limited not by the specific disclosure herein, but only by the appended claims.
The embodiments of the invention in which an exclusive privilege or property is claimed are defined as follows:
1. A multiple electrode structure comprising a generally fiat flexible base structure, a plurality of flat electrodes secured to the same surface of said flat flexible base structure, said plurality of flat electrodes spaced from one another and coplanar with said flexible base structure, a lurality of lead wires each respectively connected to a respective electrodes of said plurality of electrodes, and a common sheath containing extending portions of said plurality of lead wires, said base structure comprising a thin central connecting web having a plurality of lobes extending therefrom; each of said electrodes secured to a respective lob of said plurality of lobes.
2. The device substantially as set forth in claim 1 wherein each of said plurality of flat electrodes is surrounded by flexible cup-shaped walls extending from said surface of said base structure.
-3. The device substantially as set forth in claim 2 wherein said plurality of electrodes extend into the bottom of their said surrounding walls.
4. The device substantially as set forth in claim 3 wherein said lwalls, base and common sheath are integral with one another.
5. The device substantially as set forth in claim 4 wherein said common sheath etxends from said central connecting web between two adjacent lobes.
References Cited UNITED STATES PATENTS 2,943,628 7/1960 Howell 128418 3,187,745 6/1965 Baum et al l28-2.06
FOREIGN PATENTS 274,612 7/ 1951 Switzerland.
RICHARD A. GAUDET, Primary Examiner.
W. E. KAMM, Examiner.
|Patente citada||Fecha de presentación||Fecha de publicación||Solicitante||Título|
|US2943628 *||27 Feb 1957||5 Jul 1960||Howell William L||Electrode assembly|
|US3187745 *||1 Ago 1961||8 Jun 1965||Melpar Inc||Electrodes|
|CH274612A *||Título no disponible|
|Patente citante||Fecha de presentación||Fecha de publicación||Solicitante||Título|
|US3565060 *||21 Ago 1968||23 Feb 1971||Us Navy||Biopotential sensor employing integrated circuitry|
|US3696807 *||13 Feb 1970||10 Oct 1972||Mdm Corp||Medical electrode with relatively rigid electrolyte cup|
|US3724467 *||23 Abr 1971||3 Abr 1973||Avery Labor Inc||Electrode implant for the neuro-stimulation of the spinal cord|
|US3776228 *||20 Sep 1971||4 Dic 1973||Semler H||Portable self-contained electrical cardiometric device with three fixed-position nonuniformly spaced input probes|
|US3830227 *||15 Sep 1969||20 Ago 1974||Green H||Hand-held cardiac sound tone diagnostic device and method|
|US3927662 *||8 Nov 1974||23 Dic 1975||Hoffmann La Roche||Ultrasonic transducer assembly|
|US3960141 *||6 Mar 1975||1 Jun 1976||Bolduc Lee R||Electrosurgical and ECG monitoring system|
|US4033333 *||10 Dic 1975||5 Jul 1977||Combined Scientific Resources Corporation||Electrode arrangement for taking electrocardiograms|
|US4051842 *||15 Sep 1975||4 Oct 1977||International Medical Corporation||Electrode and interfacing pad for electrical physiological systems|
|US4233987 *||18 Ago 1978||18 Nov 1980||Alfred Feingold||Curvilinear electrocardiograph electrode strip|
|US4328814 *||4 Jun 1980||11 May 1982||The Kendall Company||Precordial ECG strip|
|US4381789 *||3 Nov 1980||3 May 1983||Siemens Aktiengesellschaft||Electrode system|
|US4393584 *||9 Oct 1981||19 Jul 1983||C. R. Bard, Inc.||Method of manufacture of electrode construction|
|US4522211 *||9 Oct 1981||11 Jun 1985||C. R. Bard, Inc.||Medical electrode construction|
|US4573473 *||13 Abr 1984||4 Mar 1986||Cordis Corporation||Cardiac mapping probe|
|US4583549 *||30 May 1984||22 Abr 1986||Samir Manoli||ECG electrode pad|
|US4595013 *||17 Ago 1984||17 Jun 1986||Neurologics, Inc.||Electrode harness|
|US4628939 *||10 Nov 1983||16 Dic 1986||Hughes Aircraft Company||Method and improved apparatus for analyzing heart activity|
|US4841966 *||22 Feb 1988||27 Jun 1989||Siemens Aktiengesellschaft||Electrode consisting of at least three elements useful for a HF surgical instrument|
|US5042481 *||29 Ene 1990||27 Ago 1991||Sharp Kabushiki Kaisha||Body electrode holder|
|US5063932 *||3 Oct 1989||12 Nov 1991||Mieczyslaw Mirowski||Controlled discharge defibrillation electrode|
|US5111812 *||23 Ene 1990||12 May 1992||Cardiac Pacemakers, Inc.||Defilbrillation electrode having smooth current distribution|
|US5114424 *||27 Ago 1990||19 May 1992||Siemens Aktiengesellschaft||Multipart planar electrode for an hf-surgery device|
|US5391200 *||10 Mar 1994||21 Feb 1995||Cardiac Pacemakers, Inc.||Defibrillation patch electrode having conductor-free resilient zone for minimally invasive deployment|
|US5813404 *||20 Oct 1995||29 Sep 1998||Aspect Medical Systems, Inc.||Electrode connector system|
|US6236874||28 Sep 1998||22 May 2001||Aspect Medical Systems, Inc.||Electrode connector system|
|US7637907||19 Sep 2006||29 Dic 2009||Covidien Ag||System and method for return electrode monitoring|
|US7658196||25 Abr 2007||9 Feb 2010||Ethicon Endo-Surgery, Inc.||System and method for determining implanted device orientation|
|US7722412||24 Oct 2007||25 May 2010||Covidien Ag||Return pad cable connector|
|US7736359||12 Ene 2006||15 Jun 2010||Covidien Ag||RF return pad current detection system|
|US7775215||7 Mar 2006||17 Ago 2010||Ethicon Endo-Surgery, Inc.||System and method for determining implanted device positioning and obtaining pressure data|
|US7775966||7 Mar 2006||17 Ago 2010||Ethicon Endo-Surgery, Inc.||Non-invasive pressure measurement in a fluid adjustable restrictive device|
|US7844342||7 Feb 2008||30 Nov 2010||Ethicon Endo-Surgery, Inc.||Powering implantable restriction systems using light|
|US7927270||29 Ene 2007||19 Abr 2011||Ethicon Endo-Surgery, Inc.||External mechanical pressure sensor for gastric band pressure measurements|
|US7927329||28 Sep 2006||19 Abr 2011||Covidien Ag||Temperature sensing return electrode pad|
|US7938825||7 Nov 2006||10 May 2011||Covidien Ag||Multiple RF return pad contact detection system|
|US8016744||7 Mar 2006||13 Sep 2011||Ethicon Endo-Surgery, Inc.||External pressure-based gastric band adjustment system and method|
|US8016745||6 Abr 2006||13 Sep 2011||Ethicon Endo-Surgery, Inc.||Monitoring of a food intake restriction device|
|US8021360||3 Abr 2007||20 Sep 2011||Tyco Healthcare Group Lp||System and method for providing even heat distribution and cooling return pads|
|US8034065||26 Feb 2008||11 Oct 2011||Ethicon Endo-Surgery, Inc.||Controlling pressure in adjustable restriction devices|
|US8057492||12 Feb 2008||15 Nov 2011||Ethicon Endo-Surgery, Inc.||Automatically adjusting band system with MEMS pump|
|US8062291||31 Mar 2010||22 Nov 2011||Covidien Ag||Smart return electrode pad|
|US8066629||12 Feb 2007||29 Nov 2011||Ethicon Endo-Surgery, Inc.||Apparatus for adjustment and sensing of gastric band pressure|
|US8080007||7 May 2007||20 Dic 2011||Tyco Healthcare Group Lp||Capacitive electrosurgical return pad with contact quality monitoring|
|US8100870||14 Dic 2007||24 Ene 2012||Ethicon Endo-Surgery, Inc.||Adjustable height gastric restriction devices and methods|
|US8100898||1 Ago 2007||24 Ene 2012||Tyco Healthcare Group Lp||System and method for return electrode monitoring|
|US8114345||8 Feb 2008||14 Feb 2012||Ethicon Endo-Surgery, Inc.||System and method of sterilizing an implantable medical device|
|US8142452||27 Dic 2007||27 Mar 2012||Ethicon Endo-Surgery, Inc.||Controlling pressure in adjustable restriction devices|
|US8152710||28 Feb 2008||10 Abr 2012||Ethicon Endo-Surgery, Inc.||Physiological parameter analysis for an implantable restriction device and a data logger|
|US8187162||6 Mar 2008||29 May 2012||Ethicon Endo-Surgery, Inc.||Reorientation port|
|US8187163||10 Dic 2007||29 May 2012||Ethicon Endo-Surgery, Inc.||Methods for implanting a gastric restriction device|
|US8192350||28 Ene 2008||5 Jun 2012||Ethicon Endo-Surgery, Inc.||Methods and devices for measuring impedance in a gastric restriction system|
|US8216222||13 Abr 2011||10 Jul 2012||Covidien Ag||Temperature sensing return electrode pad|
|US8221439||7 Feb 2008||17 Jul 2012||Ethicon Endo-Surgery, Inc.||Powering implantable restriction systems using kinetic motion|
|US8231614||11 May 2007||31 Jul 2012||Tyco Healthcare Group Lp||Temperature monitoring return electrode|
|US8233995||6 Mar 2008||31 Jul 2012||Ethicon Endo-Surgery, Inc.||System and method of aligning an implantable antenna|
|US8235980||14 Dic 2011||7 Ago 2012||Tyco Healthcare Group Lp||Electrosurgical system for measuring contact quality of a return pad|
|US8337389||28 Ene 2008||25 Dic 2012||Ethicon Endo-Surgery, Inc.||Methods and devices for diagnosing performance of a gastric restriction system|
|US8377079||27 Dic 2007||19 Feb 2013||Ethicon Endo-Surgery, Inc.||Constant force mechanisms for regulating restriction devices|
|US8382749||17 Jul 2012||26 Feb 2013||Covidien Lp||Temperature monitoring return electrode|
|US8388612||11 May 2007||5 Mar 2013||Covidien Lp||Temperature monitoring return electrode|
|US8430873||4 Ene 2012||30 Abr 2013||Covidien Lp||System and method for return electrode monitoring|
|US8591395||28 Ene 2008||26 Nov 2013||Ethicon Endo-Surgery, Inc.||Gastric restriction device data handling devices and methods|
|US8591532||12 Feb 2008||26 Nov 2013||Ethicon Endo-Sugery, Inc.||Automatically adjusting band system|
|US8611980||19 Feb 2013||17 Dic 2013||Cardiac Lead Technologies, Llc||Electrocardiograph monitoring device and connector|
|US8690867||14 Feb 2013||8 Abr 2014||Covidien Lp||Temperature monitoring return electrode|
|US8708210||5 Oct 2006||29 Abr 2014||Covidien Lp||Method and force-limiting handle mechanism for a surgical instrument|
|US8738112||7 May 2008||27 May 2014||Cardiac Lead Technologies, Llc||Electrocardiograph monitoring device and connector|
|US8801703||1 Ago 2007||12 Ago 2014||Covidien Lp||System and method for return electrode monitoring|
|US8821487||31 Mar 2006||2 Sep 2014||Covidien Ag||Temperature regulating patient return electrode and return electrode monitoring system|
|US8870742||28 Feb 2008||28 Oct 2014||Ethicon Endo-Surgery, Inc.||GUI for an implantable restriction device and a data logger|
|US9314203||15 Oct 2013||19 Abr 2016||Nemo Healthcare B.V.||Sensor for foetal monitoring|
|US20060224150 *||31 Mar 2006||5 Oct 2006||Sherwood Services Ag||Temperature regulating patient return electrode and return electrode monitoring system|
|US20070073284 *||7 Nov 2006||29 Mar 2007||Sturm Thomas A||Multiple RF return pad contact detection system|
|US20070161979 *||12 Ene 2006||12 Jul 2007||Sherwood Services Ag||RF return pad current detection system|
|US20070167942 *||18 Ene 2006||19 Jul 2007||Sherwood Services Ag||RF return pad current distribution system|
|US20070238944 *||14 Jun 2007||11 Oct 2007||Jens Axelgaard||Multi-electrode with lateral conductivity control|
|US20070244478 *||18 Abr 2006||18 Oct 2007||Sherwood Services Ag||System and method for reducing patient return electrode current concentrations|
|US20080009846 *||6 Jul 2006||10 Ene 2008||Sherwood Services Ag||Electrosurgical return electrode with an involuted edge|
|US20080050984 *||24 Oct 2007||28 Feb 2008||Ehr Chris J||Return pad cable connector|
|US20080082092 *||28 Sep 2006||3 Abr 2008||Sherwood Services Ag||Temperature sensing return electrode pad|
|US20080083813 *||5 Oct 2006||10 Abr 2008||Michael Zemlok||Method and force-limiting handle mechanism for a surgical instrument|
|US20080249520 *||3 Abr 2007||9 Oct 2008||Tyco Healthcare Group Lp||System and method for providing even heat distribution and cooling return pads|
|US20080249524 *||3 Abr 2007||9 Oct 2008||Tyco Healthcare Group Lp||System and method for providing even heat distribution and cooling return pads|
|US20080281180 *||7 May 2008||13 Nov 2008||William Chongwon Choe||Electrocardiograph monitoring device and connector|
|US20080281309 *||7 May 2007||13 Nov 2008||Tyco Healthcare Group Lp||Capacitive electrosurgical return pad with contact quality monitoring|
|US20080281310 *||11 May 2007||13 Nov 2008||Tyco Healthcare Group Lp||Temperature monitoring return electrode|
|US20080281311 *||11 May 2007||13 Nov 2008||Tyco Healthcare Group Lp||Temperature monitoring return electrode|
|US20090036884 *||1 Ago 2007||5 Feb 2009||Gregg William N||System and method for return electrode monitoring|
|US20090036885 *||1 Ago 2007||5 Feb 2009||Gregg William N||System and method for return electrode monitoring|
|US20090221897 *||22 Dic 2006||3 Sep 2009||Nederlandse Organisatie Voor Toegepast- Natuurwetenschappelijke Onderzoek Tno||Diagnostic Electrode Configuration|
|US20090228072 *||6 Mar 2008||10 Sep 2009||Ethicon Endo-Surgery, Inc.||System and method of aligning an implantable antenna|
|US20100185195 *||31 Mar 2010||22 Jul 2010||Mcpherson James W||Smart Return Electrode Pad|
|US20110190761 *||13 Abr 2011||4 Ago 2011||Covidien Ag||Temperature Sensing Return Electrode Pad|
|USD752764||5 May 2014||29 Mar 2016||Nemo Healthcare B.V.||Electrode patch|
|DE2337321A1 *||23 Jul 1973||7 Feb 1974||Medical Plastics Inc||Elektrode zur erstellung eines ekg|
|DE2742058A1 *||19 Sep 1977||29 Mar 1979||Guenter Prof Dipl Ing Dr R Rau||Fixture for data pick=up and measuring electrode - has flexible one-piece suction cup of plastics esp. for use on skin surfaces|
|EP0029245A1 *||17 Nov 1980||27 May 1981||Siemens Aktiengesellschaft||Arrangement for supplying or picking up electrical signals|
|EP2862511A1 *||14 Oct 2014||22 Abr 2015||Nemo Healthcare B.V.||Sensor for foetal monitoring|
|WO2008137162A2||7 May 2008||13 Nov 2008||Cardiac Lead Technologies, Llc||Electrocardiograph monitoring device and connector|
|WO2011157669A1||13 Jun 2011||22 Dic 2011||Alberto Marcolongo||Electrode for electrocardiograph and chest belt therefor|
|Clasificación de EE.UU.||600/393|
|Clasificación internacional||A61B5/0408, A61N1/04|
|Clasificación cooperativa||A61N1/04, A61B5/04085|
|Clasificación europea||A61B5/0408D, A61N1/04|