|Número de publicación||US3828766 A|
|Tipo de publicación||Concesión|
|Fecha de publicación||13 Ago 1974|
|Fecha de presentación||14 Ago 1972|
|Fecha de prioridad||14 Ago 1972|
|Número de publicación||US 3828766 A, US 3828766A, US-A-3828766, US3828766 A, US3828766A|
|Cesionario original||Jet Medical Prod Inc|
|Exportar cita||BiBTeX, EndNote, RefMan|
|Citas de patentes (8), Citada por (160), Clasificaciones (4)|
|Enlaces externos: USPTO, Cesión de USPTO, Espacenet|
ilnited States Patent 191 Krasnow [451 Aug. 13, 1974  Assignee: Jet Medical Products Inc., Braintree,
 Filed: Aug. 14, 1972  Appl. No.: 280,350
 US. Cl. 128/21. E, 128/417, l28/D1G. 4  Int. Cl A61b 5/04  Field of Search 128/206 E, 2.1 E, DIG. 4,
 References Cited UNITED STATES PATENTS Karnofsky 128/417 X 3,701,346 10/1972 Patrick et a1 128/206 E Primary Examiner-Richard A. Gaudet Assistant Examiner-Lee S. Cohen Attorney, Agent, or Firm-Dike, Bronstein, Roberts & Cushman [5 7] ABSTRACT A disposable medical electrode comprising a support member made of a closed cell plastic material having an adhesive surface. A centrally located contact element is embedded therein so as to leave an exposed portion thereof at the adhesive side of the support member. A smaller pad member made up of an open cell plastic material is adhered to the adhesive surface of the support member at a position opposite to and in contact with the exposed portion of the contact element. In use, the pad member has a conductive gel dispersed throughout so that when the electrode is placed against the skin of a patient a good conductive path is present from the skin through the gelled pad to the contact element.
11 Claims, 6 Drawing Figures PATENTEDMIBI 3 14 3.828.766
FIG. IA 25 DISPOSABLE MEDICAL ELECTRODE DISCLOSURE OF THE INVENTION ble between the skin area which is being monitored and the metallic contact element of the electrode so that a maximum electrical signal can be obtained for use in the monitoring equipment. An improtant further characteristic of such electrodes is that they be so designed as to minimize the discomfort which a patient will suffer, especially when such electrode may be required to be used over a prolonged period of time, sometimes for several days.
It is particularly desirable that such electrodes provide maximum signal strength with minimal discomfort for more sensitive patients, such as adults with sensitive skin and children or infants whose skin is apt to be more tender than that of adults. The comfort factor may be particularly important when used with extremely small infants, less than 30 days old, in the growing field of neo-natalogy.
DESCRIPTION OF THE PRIOR ART A conventionally structured electrode presently available for use in the medical field is a type which utilizes a conductive gel between the skin area which is being contacted and the metallic contact element of the electrode to which the monitoring circuit is connected. In such presently used electrodes the metal contact element is normally affixed to a rigid plastic base member of the electrode, the contact element being in the form of a snap fastener assembly having a first side to which a monitoring circuit is snap connected and a second oppositely disposed side which is in contact with a pad member made of an open cell plastic material permeated with a conductive gel. The pad is in turn in pressure contact with the skin, the conductive gel thereby assuring that a good conductive path is present from the skin to the metal contact element for the signal which is being monitored.
In such prior art electrodes the gel pad is freely nested in a recessed region of the electrode which is formed by a solid ridged portion of the rigid plastic body member, the outer surface of the'ridge coming into pressure contact with the skin adjacent the outer perimeterof the gel pad when the electrode is in use. The ridged body member containing the snap fastener contact element is attached to a circularly shaped open cell plastic foam material one side of which has an adhesive thereon so that the electrode can adhere to the skin. The protruding ridge is thereby between the open cell adhesive foam material and the open cell-gel pad foam material to form a barrier therebetween so as to prevent the conductive gel in the gel pad from being .2 absorbed'by and dispersed throughout the open cell adhesive foam portion of the overall electrode. Unfortunately, however, the presence of the ridge tends to cause excessive discomfort'to the patient on whom the electrode is being used since the ridge which digs into the skin of the patient can become extremely irritating.
Moreover, since the gel pad itself is held within the recessed portion of the electrode only by means of the surface tension created between the gel material and the surface of the solid ridged member of the electrode,
the gel pad can often fall out of its recessed nest during handling and must be replaced by hand or other means, all of which tends to cause the gel pad to become less sanitary in use than is desired.
SUMMARY OF THE INVENTION In the monitoring electrode of the invention the need for a ridged barrier between a conductor gel pad and an adhesive portion of the electrode is eliminated so that a relatively smooth surface is presented to the skin of the patient and any irritation and discomfort caused by the presence of a ridge is completely avoided. In the structure of the invention, the adhesive base member of the electrode to which a snap fastener contact element is attached is made of a plastic foam material having a closed cell configuration. A gel pad made of a plastic foam material having an open cell configuration is then adhered to the underside of the closed cell foam material opposite the underside of the snap fastener contact element.
In one preferred embodiment of the invention a thin vinyl plastic strip is adhered to the upper side of the closed cell body member to provide some rigidity thereto. Because of the closed cell nature of the adhesive base member of the electrode, substantially none of the conductive gel which is dispersed throughout the open cell gel pad can be absorbed by or dispersed within the closed cell material and the gel is adequately retained within the open cell gel pad during manufacture, shipment and use. Moreover, because no solid plastic ridged member is used, the surface of the electrode which comes into contact with the skin of the patient is essentially soft and relatively smooth with no protruding ridges so that it can be readily placed on the patients skin for good adherence without discomfort even with prolonged use.
In the preferred embodiment of the invention the lower surface of the contact element which is in contact with the gel pad may be coated with silver so that, in reacting with the gel substance a silver/silver chloride conductive coating is formed which enhances the signal carrying properties of the electrode.
The elimination of the need for a ridged barrier also permits the formation of a relatively smaller electrode than that of presently available electrodes and permits their use with regions of the body where the larger electrodes have not-been readily useable. A smaller size also makes the electrode more convenient for use with child and infant patients.
The invention is described in more detail with reference to the attached drawings wherein FIG. 1 shows a view in cross-section of a monitoring electrode of the prior art;
FIG. 1A shows a plan view of the electrode of FIG.
FIG. 2 shows a view in cross-section of a preferred embodiment of the electrode in accordance with the invention;
FIG. 2A shows a plan view of the electrode of FIG.
FIG. 3 shows a view in cross-section of a portion of the electrode of FIG. 2; and
FIG. 4 shows a view in cross-section of a preferred embodiment for packaging one or more of the electrodes of FIG. 2.
FIG. 1 depicts a conventional monitoring electrode of the prior art which has found relatively widespread use in the medical field at the present time. As can be seen therein the electrode comprises a solid plastic ridged body member having an upper portion 11A and a lower portion 11B, each of a circular configuration, which portions each include flat body portions 12A and 128 respectively, and ridged portions 13A and 13B, respectively, forming the outer peripheries thereof. A contact element 14 is positioned within apertures at the centers of solid portions 11A and 118, the contact element being in the form of a conventional male snap fastener having a first upper portion 14A with a protruding snap at the center thereof and a lower portion 148 which nests within the upper portion so that the overall element can be attached to and retained in the solid ridged member. The snap fastener 14 provides a snap contact to a corresponding female snap fastener (not shown) which is in turn connected to an appropriate lead for connection to suitable monitoring equipment (also not shown). The upper and lower solid portions 11A and 118 may be made of any appropriately chosen plastic material and are arranged to enclose an adhesive pad member 16 also of substantially circular configuration, as shown. One side of foam pad 16 has a layer 17 of double faced adhesive material placed thereon and extending from ridge 138 to the periphery thereof so as to provide an adhesion surface which permits the electrode to be placed in an adhering manner on the skin of a patient. A circular pad 19 of foam plastic material is nested within the recess 18 formed by ridge 13B, pad 19 being substantially permeated with a conductive gel substance forming a gel pad for providing a good conductive path from the skin which contacts the outer exposed surface thereof and the lower portion 148 of contact element 14, which is in contact with the inner surface of gel pad 19. Gel pad 19 is retained within the recess 18 by the surface tension action of the gel on the underside of solid plastic portion 12B,
In the prior art structure shown both of the plastic pad materials forming the adhesive pad 16 and the gel pad 19 are made of an open cellular plastic foam material which is readily absorbent to liquids and gels which can thereby penetrate into and become dispersed throughout such materials. In order to permit dispersion of conductive gel throughout gel pad 19 without permitting a similar dispersionin the adhesive pad 16, the ridge 13B and body portion 128 form a barrier so that none of the gel in gel pad 19 comes into contact with the adhesive pad 16. Were the conductive gel to become dispersed throughout adhesive pad 16 as well as gel pad 19, the conductivity of the path through pad 19 would be greatly reduced and the effectiveness of the electrode would become diminished. Further, when the prior art electrode 10 is placed on the skin of a patient for any prolonged period of time, ridge 13B tends to dig into the skin and become so irritating that a high degree of discomfort may result, particularly with patients having relatively tender skin.
Moreover, when the electrode has been placed on the skin the presence of ridge 13B tends to cause the adhesive surfaces in the regions adjacent the ridges to be raised out of contact with the skin so that the area of adhesive contact with the skin is reduced. In order to assure that the surface area of adhesive contact is sufficient, the diameter of the overall electrode must be made relatively large and the electrode becomes less useful for some applications.
A preferred embodiment of the monitoring electrode of the invention is depicted in FIGS. 2 and 2A and shows the contrast between the structure thereof and that of the prior art electrode shown in FIGS. 1 and 1A.
As can be seen in FIGS. 2 and 2A, the electrode 20 of the invention comprises an adhesive foam pad portion 21 which forms the main body of the electrode and has on one surface thereof a layer 22 of double-faced adhesive which effectively covers the entire surface. In a preferred embodiment adhesive foam pad 21 has a substantially circular configuration and at the central region of the surface 24 opposite to the adhesive surface thereof a paper thin circular piece 23 of vinyl plastic material is positioned. Vinyl piece 23 imparts a slightly greater degree of rigidity for the surface 24 of the electrode than to the adhesive surface thereof and, further, can be used as an appropriate label for identifying the electrode and the manufacturer thereof.
A snap fastener contact element 25 is machine fastened at the center of adhesive foam pad 21 as shown. After the fastening process the presence of fastener 25 forms slight depressions at both the upper and the lower surfaces of foam pad 21, as shown. The peripheral region of a gel pad 26 is caused to adhere to the adhesive surface of pad 21 so that the pad 26 is placed at a position opposite the lower contact surface 25A of contact element 25 as shown in enlarged detail in FIG. 3.
Adhesive foam pad 21 is made of a closed cell plastic material, such as a closed cell polyethylene or polyurethane plastic material, while gel pad 26 is made of an open cell material, such as polyurethane foam material. The use of a closed cell material for pad 21 effectively prevents any penetration through the pad 21 of any conductive gel which is present in gel pad 26 within which it is in contact. One such closed cell plastic successfully used in the electrode of the invention is a polyethylene plastic sold under the name Volara" by the Voltech Company of Lawrence, Massachusetts. One such open cell gel pad material which has been successfully used to provide the necessary gel dispersion action is a polyurethane foam material sold by Rogers Foam Company, Somerville, Massachusetts.
Further, the double sided adhesive layer 22 is selected so as to avoid causing any irritation to the skin, to which it adheres. One such adhesive which has been successfully used and which has been approved for such use by the Federal Drug Administration of the United States Government is identified as Adhesive No. 1524, made by 3M Company, Minneapolis, Minnesota.
The cellular density of open cell material 26 is such as to be sufficiently dense to hold a conductive gel within the material and at the same time sufficiently porous to allow the gel to penetrate throughout the material so that a good electrical contact is made between the skin of the patient and the lower surface 25A of contact element 25. Conductive gels for this purpose are readily available to those in the art and any convenient gel such as that identified as Spectra 360 as sold by Parker Laboratories, lrvington, New Jersey, may be used in the electrode of the invention.
in order to enhance the conductive path from the skin to the contact element 25, the bottom surface 25A thereof is coated with silver. When the conductive gel comes into contact with the silver coated surface thereof it forms a combination silver/silver chloride coating which enhances the conductive properties therebetween. In using conventional snap fasteners which have chrome plated surfaces, for example, contact with electrode conductive gels often causes the formation of an acid coating which may be injurious to the skin against which the electrode is pressed. The silver/silver chloride coating not only has been found to increase the conductivity of the overall electrode, it has also been found to be essentially harmless to the skin of the patient. It can also be seen that when the electrode is applied to the skin of a patient, gel pad.26 is effectively compressed and the lower surface of the electrode forms an effectively soft and smooth contact with the skin over its entire area and little or no discomfort is felt by the patient.
With reference to the dimensions of the various.ele ments of the electrode of the invention, it has been found that the thickness of the adhesive foam pad 21 preferably lies within a range of from 1/ 32nd of an inch to about 3/ l6ths of an inch, with a thickness of about 1/ 1 6th of an inch being successfully used in a preferred embodiment of the electrode. The thickness is primarily selected so as toretain sufficient flexibility for the overall electrode to permit it to be used in various skin areas, even those having a relatively deep curvature. Moreover, it has been found that if the adhesive foam pad portion is at least l/32nd of aninch thick, it becomes much easier to remove the electrode both from the card on which it is shipped, as described below, and
from the skin after use.
The vinyl label 23 has been found preferably to have a diameter lying 0etween about 0.75 inches to up to the diameter of the foam pad 16. The latter preferably has a diameter of from about 1 inch to 2 /4 inches and in a preferred embodiment a diameter of 1% inches hasbeen found to be satisfactory for use not only on adult patients but also on child and infant patients.
The diameter of gel pad 26 is preferably between about ll/l6 inch and l3/l6 inch with a diameter of about /1 inch being successfully used in a preferred embodiment. Thus, the gel pad must be sufficiently large to cover the bottom contact element surface and yet have enough surface area in contact with the adhesive layer 22 to permit the gel pad to be adequately. attached to the foam pad 21 about its entire periphery. Since the gel pad 26 is retained on foam'pad 21'by the adhesive layer 22 it doesnot depend for its retention upon the surface tension ofthe gel itself. Accordingly, in shipping the overall electrode the electrode can be shipped either in a dry form, that is, a form wherein the gel is not applied to the open cell pad 26 until just prior to use, or in a wet" form, that is, where the gel is applied when the electrode is packaged so that it arrives for use in a pre-gelled" state. Such a construction is in contrast with that of theprior art where the V gel must'beshipped in a wet state so as to be retained gel pads are further protected by applying a clear plastic cover-member 32 having relatively rigid raised portions 33 positioned above each gel pad 26, as shown. Cover member 32 may be appropriately fastened with adhesive material, such as a suitable glue, at appropriate pointson the lower surface of the card.
Each card may be inserted into an hermetically sealed bag 35 which also has a light opaque inner surface. If the, electrode is of a pre-gelled form, the hermetically sealedbag prevents theescapeof any mois ture from-the gel and keeps the gel pad 26 in an appropriately wet conductive state. The use of a light opaque bag'prevents the penetration into the interior of the bagof ultraviolet rays which may cause a deterioration of the adhesive, layer 22. Accordingly, when-the electrode-is ready for use it will adhere firmly to the skin-without any problems. The semi-rigid cover 32 prevents the gel pad from being inadvertently squeezed during shipment which action would cause an irretrievable loss of the gel material.
In manufacturing the electrodes of the, inventioma sheetof closedcell plastic foam material is coveredon one surface thereof with a double sided layer of adhesive material. A plurality of vinyl labelsare then adhered at various regions to the opposite side thereof andthe snap fasteners 25 are machine installed at the centerof 'each vinyl label. A pluralityof open cell foam plastic pads are thenadhered to the adhesive layer of the closed cell material at positions opposite'each snap fastener. The open cell pads can be so applied ina dry. state and the electrodes then appropriately punched out from the closed cell plastic sheet. If ltilS desired to ship the electrodes in a wet state, a conductive gel is applied to each of the gel pads before packag-, mg.
Whether in a wet or in a dry state, one or more of the punchedelectrodes are mounted on a card having one ormore circular apertures each having a diameter the sameas that of the open cell gel pads and the relatively rigid plastic cover is then glued to thsurface of the card through which the open cell gel pad protrudes. Thecards are then placed into hermetically scalable and light opaque. bags and appropriately sealed for storage and/or shipment.
What is claimed is: l. A monitoring electrode comprising a substantially flat support member formed of plastic foam material having a closed cellular configuration throughout, one surface of which is adhesive;
a contact element embedded in said support member, a first contact portion thereof being exposed atsaid one surface and a second contact portion thereof protruding from the opposite surface of said support member;
a pad member formed of plastic foam material having an open cellular configuration adhered to said adhesive surface of said support member at a position such that the inner surface of said pad member is in contact with and substantially covers said exposed portion of said contact element, the outer surface thereof being capable of contacting a surface to be monitored.
2. A monitoring electrode in accordance with claim 1 and further including a conductive gel being dispersed throughout said pad member when said monitoring electrode is in use to provide a conductive path from said outer surface of said pad member to said second contact portion.
3. A monitoring electrode in accordance with claim 2 and further including a plastic strip adhered to a portion of said opposite surface of said support member to impart greater rigidity to said opposite surface than to said one surface thereof.
4. A monitoring electrode in accordance with claim 2 wherein the thickness of said support member is in a range from about 1/32 inch to about 3/16 inches.
5. A monitoring electrode in accordance with claim 4 wherein the thickness of said support member is about l/l6 inch.
8 wherein said support member is substantially circular in configuration and has a diameter of about l% inches.
10. A monitoring electrode in accordance with claim 8 wherein said pad member is substantially circular in configuration and has a diameter in a range from about 1 H16 inches to about 13/16 inches. 11. A monitoring electrode in accordance with claim 10 wherein said pad member is substantially circular in configuration and has a diameter of about inches.
|Patente citada||Fecha de presentación||Fecha de publicación||Solicitante||Título|
|US2055540 *||18 Dic 1933||29 Sep 1936||Gen Therapeutics Corp||Process and apparatus for treating pathological conditions|
|US3340868 *||5 Mar 1965||12 Sep 1967||Gen Electric||Body signal pickup electrode|
|US3534727 *||24 Mar 1967||20 Oct 1970||Nasa||Biomedical electrode arrangement|
|US3545432 *||24 Jul 1967||8 Dic 1970||Gulton Ind Inc||Body electrode assembly|
|US3581736 *||20 Dic 1968||1 Jun 1971||Zenkich Ilias||Electrocardiograph electrode|
|US3587565 *||25 Ago 1969||28 Jun 1971||Cardiac Electronics Inc||Disposable electrode|
|US3696807 *||13 Feb 1970||10 Oct 1972||Mdm Corp||Medical electrode with relatively rigid electrolyte cup|
|US3701346 *||4 Ene 1971||31 Oct 1972||Bionetics Inc||Medical electrode|
|Patente citante||Fecha de presentación||Fecha de publicación||Solicitante||Título|
|US3923042 *||30 Sep 1974||2 Dic 1975||Medicor Muevek||Electrical detector/transducer/applicable on the skin surface for biometrical observations|
|US3961623 *||17 Ene 1975||8 Jun 1976||Medical Research Laboratories, Inc.||Method of using a disposable electrode pad|
|US3964469 *||21 Abr 1975||22 Jun 1976||Eastprint, Inc.||Disposable electrode|
|US3972329 *||25 Nov 1974||3 Ago 1976||Kaufman John George||Body electrode for electro-medical use|
|US3973557 *||21 Abr 1975||10 Ago 1976||Allison Kenneth C||Electrode|
|US3976055 *||27 Nov 1974||24 Ago 1976||Ndm Corporation||Electrode and conductor therefor|
|US3977392 *||21 Abr 1975||31 Ago 1976||Eastprint, Inc.||Medical electrode|
|US3989035 *||4 Ago 1975||2 Nov 1976||Stemmen Laboratory, Inc.||Disposable medical electrode|
|US3993049 *||26 Dic 1974||23 Nov 1976||Kater John A R||Electrodes and materials therefor|
|US4029086 *||11 Ago 1975||14 Jun 1977||Consolidated Medical Equipment, Inc.||Electrode arrangement|
|US4034854 *||16 Jul 1976||12 Jul 1977||M I Systems, Inc.||Electrode package|
|US4040412 *||3 Feb 1976||9 Ago 1977||Sato Takuya R||Bioelectrodes|
|US4050453 *||3 Feb 1976||27 Sep 1977||Concept, Inc.||Radiotransparent electrode|
|US4063352 *||20 Dic 1976||20 Dic 1977||M I Systems, Inc.||Method of making electrode package|
|US4067322 *||28 Ene 1976||10 Ene 1978||Johnson Joseph H||Disposable, pre-gel body electrodes|
|US4077397 *||25 Mar 1976||7 Mar 1978||Baxter Travenol Laboratories, Inc.||Diagnostic electrode assembly|
|US4077398 *||25 Mar 1976||7 Mar 1978||Baxter Travenol Laboratories, Inc.||Diagnostic electrode assembly|
|US4092985 *||2 Ago 1976||6 Jun 1978||John George Kaufman||Body electrode for electro-medical use|
|US4161174 *||7 Jul 1978||17 Jul 1979||Mercuri Albert R||Biomedical electrode assembly|
|US4166456 *||6 Oct 1977||4 Sep 1979||Vaughn Corporation||Carrier release sheet|
|US4177817 *||1 Feb 1978||11 Dic 1979||C. R. Bard, Inc.||Dual terminal transcutaneous electrode|
|US4196737 *||21 Abr 1978||8 Abr 1980||C. R. Bard, Inc.||Transcutaneous electrode construction|
|US4319579 *||11 Dic 1980||16 Mar 1982||Ndm Corporation||Reusable medical electrode having disposable electrolyte carrier|
|US4327737 *||15 May 1980||4 May 1982||Roman Szpur||Medical electrode assembly|
|US4353373 *||17 Abr 1980||12 Oct 1982||Ferris Manufacturing Corp.||EKG Electrode and package|
|US4393584 *||9 Oct 1981||19 Jul 1983||C. R. Bard, Inc.||Method of manufacture of electrode construction|
|US4441500 *||25 Mar 1981||10 Abr 1984||Ferris Manufacturing Corp.||EKG Electrode|
|US4522211 *||9 Oct 1981||11 Jun 1985||C. R. Bard, Inc.||Medical electrode construction|
|US4524775 *||14 Feb 1983||25 Jun 1985||Jan Rasmussen||Medical electrode and a method of manufacturing same|
|US4543958 *||6 Dic 1982||1 Oct 1985||Ndm Corporation||Medical electrode assembly|
|US4584962 *||15 Nov 1984||29 Abr 1986||Ndm Corporation||Medical electrodes and dispensing conditioner therefor|
|US4590089 *||15 Nov 1984||20 May 1986||Ndm Corporation||Medical electrodes and dispensing conditioner therefor|
|US4669479 *||21 Ago 1985||2 Jun 1987||Spring Creek Institute, Inc.||Dry electrode system for detection of biopotentials|
|US4674511 *||9 May 1984||23 Jun 1987||American Hospital Supply Corporation||Medical electrode|
|US4685467 *||10 Jul 1985||11 Ago 1987||American Hospital Supply Corporation||X-ray transparent medical electrodes and lead wires and assemblies thereof|
|US4832036 *||13 May 1985||23 May 1989||Baxter International Inc.||Medical electrode|
|US4838273 *||22 Jun 1987||13 Jun 1989||Baxter International Inc.||Medical electrode|
|US4852585 *||9 Feb 1988||1 Ago 1989||Darox Corporation||Tin-stannous chloride electrode element|
|US5305746 *||29 Sep 1992||26 Abr 1994||Aspect Medical Systems, Inc.||Disposable, pre-gelled, self-prepping electrode|
|US5326272 *||2 Ene 1991||5 Jul 1994||Medtronic, Inc.||Low profile electrode connector|
|US5431166 *||22 Ene 1993||11 Jul 1995||Ludlow Corporation||Low profile medical electrode|
|US5660177 *||17 Oct 1994||26 Ago 1997||Biofield Corp.||D.C. biopotential sensing electrode assemblies for apparatus for disease, injury and bodily condition screening or sensing|
|US5823957 *||27 Jul 1995||20 Oct 1998||Biofield Corp||D.C. biopotential sensing electrode and electroconductive medium for use therein|
|US6254614 *||18 Oct 1999||3 Jul 2001||Jerry M. Jesseph||Device and method for improved diagnosis and treatment of cancer|
|US6569176||22 Ene 2001||27 May 2003||Jerry M. Jesseph||Device and method for improved diagnosis and treatment of cancer|
|US6711427||13 Feb 2002||23 Mar 2004||Milwaukee Electronics Corporation||Skin abrading medical electrode mounting and packaging system|
|US7065410 *||5 Nov 2001||20 Jun 2006||Cameron Health, Inc.||Subcutaneous electrode with improved contact shape for transthorasic conduction|
|US7364440||17 Ene 2007||29 Abr 2008||Lifesync Corporation||Multi-lead keyhole connector|
|US7616980||28 Sep 2006||10 Nov 2009||Tyco Healthcare Group Lp||Radial electrode array|
|US7657322||5 May 2006||2 Feb 2010||Cameron Health, Inc.||Subcutaneous electrode with improved contact shape for transthoracic conduction|
|US7658196||25 Abr 2007||9 Feb 2010||Ethicon Endo-Surgery, Inc.||System and method for determining implanted device orientation|
|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|
|US7925323||1 Oct 2009||12 Abr 2011||Tyco Healthcare Group Lp||Radial electrode array|
|US7927270||29 Ene 2007||19 Abr 2011||Ethicon Endo-Surgery, Inc.||External mechanical pressure sensor for gastric band pressure measurements|
|US7978064||12 Jul 2011||Proteus Biomedical, Inc.||Communication system with partial power source|
|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|
|US8034065||26 Feb 2008||11 Oct 2011||Ethicon Endo-Surgery, Inc.||Controlling pressure in adjustable restriction devices|
|US8036748||13 Nov 2009||11 Oct 2011||Proteus Biomedical, Inc.||Ingestible therapy activator system and method|
|US8054140||17 Oct 2007||8 Nov 2011||Proteus Biomedical, Inc.||Low voltage oscillator for medical devices|
|US8055334||10 Dic 2009||8 Nov 2011||Proteus Biomedical, Inc.||Evaluation of gastrointestinal function using portable electroviscerography systems and methods of using the same|
|US8057492||12 Feb 2008||15 Nov 2011||Ethicon Endo-Surgery, Inc.||Automatically adjusting band system with MEMS pump|
|US8066629||12 Feb 2007||29 Nov 2011||Ethicon Endo-Surgery, Inc.||Apparatus for adjustment and sensing of gastric band pressure|
|US8100870||14 Dic 2007||24 Ene 2012||Ethicon Endo-Surgery, Inc.||Adjustable height gastric restriction devices and methods|
|US8109883||28 Sep 2006||7 Feb 2012||Tyco Healthcare Group Lp||Cable monitoring apparatus|
|US8114021||15 Dic 2009||14 Feb 2012||Proteus Biomedical, Inc.||Body-associated receiver and method|
|US8114345||8 Feb 2008||14 Feb 2012||Ethicon Endo-Surgery, Inc.||System and method of sterilizing an implantable medical device|
|US8115618||23 May 2008||14 Feb 2012||Proteus Biomedical, Inc.||RFID antenna for in-body 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|
|US8180425||5 Dic 2007||15 May 2012||Tyco Healthcare Group Lp||ECG lead wire organizer and dispenser|
|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|
|US8221439||7 Feb 2008||17 Jul 2012||Ethicon Endo-Surgery, Inc.||Powering implantable restriction systems using kinetic motion|
|US8233995||6 Mar 2008||31 Jul 2012||Ethicon Endo-Surgery, Inc.||System and method of aligning an implantable antenna|
|US8238996||5 Dic 2007||7 Ago 2012||Tyco Healthcare Group Lp||Electrode array|
|US8258962||5 Mar 2009||4 Sep 2012||Proteus Biomedical, Inc.||Multi-mode communication ingestible event markers and systems, and methods of using the same|
|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|
|US8540632||23 May 2008||24 Sep 2013||Proteus Digital Health, Inc.||Low profile antenna for in body device|
|US8540633||13 Ago 2009||24 Sep 2013||Proteus Digital Health, Inc.||Identifier circuits for generating unique identifiable indicators and techniques for producing same|
|US8540664||24 Mar 2010||24 Sep 2013||Proteus Digital Health, Inc.||Probablistic pharmacokinetic and pharmacodynamic modeling|
|US8542123||1 Ago 2012||24 Sep 2013||Proteus Digital Health, Inc.||Multi-mode communication ingestible event markers and systems, and methods of using the same|
|US8545402||27 Abr 2010||1 Oct 2013||Proteus Digital Health, Inc.||Highly reliable ingestible event markers and methods for using the same|
|US8545436||23 Dic 2011||1 Oct 2013||Proteus Digital Health, Inc.||Body-associated receiver and method|
|US8547248||1 Sep 2006||1 Oct 2013||Proteus Digital Health, Inc.||Implantable zero-wire communications system|
|US8558563||23 Ago 2010||15 Oct 2013||Proteus Digital Health, Inc.||Apparatus and method for measuring biochemical parameters|
|US8560043||14 May 2012||15 Oct 2013||Covidien Lp||ECG lead wire organizer and dispenser|
|US8568160||27 Jul 2011||29 Oct 2013||Covidien Lp||ECG adapter system and method|
|US8571627||14 May 2012||29 Oct 2013||Covidien Lp||ECG lead wire organizer and dispenser|
|US8583227||23 Sep 2011||12 Nov 2013||Proteus Digital Health, Inc.||Evaluation of gastrointestinal function using portable electroviscerography systems and methods of using the same|
|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|
|US8597186||5 Ene 2010||3 Dic 2013||Proteus Digital Health, Inc.||Pharmaceutical dosages delivery system|
|US8668651||5 Dic 2006||11 Mar 2014||Covidien Lp||ECG lead set and ECG adapter system|
|US8674825||13 Mar 2009||18 Mar 2014||Proteus Digital Health, Inc.||Pharma-informatics system|
|US8690611||5 Mar 2013||8 Abr 2014||Covidien Lp||ECG electrode connector|
|US8694080||7 Sep 2010||8 Abr 2014||Covidien Lp||ECG lead system|
|US8706217||30 Mar 2012||22 Abr 2014||Cameron Health||Cardioverter-defibrillator having a focused shocking area and orientation thereof|
|US8708926 *||31 Mar 2010||29 Abr 2014||Drägerwerk AG & Co. KGaA||Double temperature sensor|
|US8718193||19 Nov 2007||6 May 2014||Proteus Digital Health, Inc.||Active signal processing personal health signal receivers|
|US8721540||18 Nov 2010||13 May 2014||Proteus Digital Health, Inc.||Ingestible circuitry|
|US8730031||11 Jul 2011||20 May 2014||Proteus Digital Health, Inc.||Communication system using an implantable device|
|US8784308||2 Dic 2010||22 Jul 2014||Proteus Digital Health, Inc.||Integrated ingestible event marker system with pharmaceutical product|
|US8795004||30 Sep 2013||5 Ago 2014||Covidien, LP||ECG electrode connector|
|US8798708||20 Mar 2012||5 Ago 2014||Covidien Lp||Physiological sensor placement and signal transmission device|
|US8802183||11 Jul 2011||12 Ago 2014||Proteus Digital Health, Inc.||Communication system with enhanced partial power source and method of manufacturing same|
|US8810409||6 May 2013||19 Ago 2014||Proteus Digital Health, Inc.||Multi-mode communication ingestible event markers and systems, and methods of using the same|
|US8814574 *||15 Mar 2013||26 Ago 2014||Suunto Oy||Male end of a telemetric transceiver|
|US8816847||3 Jun 2011||26 Ago 2014||Proteus Digital Health, Inc.||Communication system with partial power source|
|US8821405||5 Ene 2012||2 Sep 2014||Covidien Lp||Cable monitoring apparatus|
|US8831720||25 Oct 2013||9 Sep 2014||Cameron Health, Inc.||Method of implanting and using a subcutaneous defibrillator|
|US8836513||11 Jul 2011||16 Sep 2014||Proteus Digital Health, Inc.||Communication system incorporated in an ingestible product|
|US8847766||28 Abr 2006||30 Sep 2014||Proteus Digital Health, Inc.||Pharma-informatics system|
|US8858432||1 Feb 2008||14 Oct 2014||Proteus Digital Health, Inc.||Ingestible event marker systems|
|US8868152||25 Jun 2012||21 Oct 2014||Covidien Lp||Electrode array|
|US8868453||4 Nov 2010||21 Oct 2014||Proteus Digital Health, Inc.||System for supply chain management|
|US8870742||28 Feb 2008||28 Oct 2014||Ethicon Endo-Surgery, Inc.||GUI for an implantable restriction device and a data logger|
|US8897865||3 Mar 2014||25 Nov 2014||Covidien Lp||ECG lead system|
|US8912908||11 Jul 2011||16 Dic 2014||Proteus Digital Health, Inc.||Communication system with remote activation|
|US8932221||7 Mar 2008||13 Ene 2015||Proteus Digital Health, Inc.||In-body device having a multi-directional transmitter|
|US8945005||25 Oct 2007||3 Feb 2015||Proteus Digital Health, Inc.||Controlled activation ingestible identifier|
|US8956287||2 May 2007||17 Feb 2015||Proteus Digital Health, Inc.||Patient customized therapeutic regimens|
|US8956288||14 Feb 2008||17 Feb 2015||Proteus Digital Health, Inc.||In-body power source having high surface area electrode|
|US8961412||25 Sep 2008||24 Feb 2015||Proteus Digital Health, Inc.||In-body device with virtual dipole signal amplification|
|US9014779||28 Ene 2011||21 Abr 2015||Proteus Digital Health, Inc.||Data gathering system|
|US9060708||25 Jul 2014||23 Jun 2015||Proteus Digital Health, Inc.||Multi-mode communication ingestible event markers and systems, and methods of using the same|
|US9072444||15 Mar 2013||7 Jul 2015||Covidien Lp||ECG lead set and ECG adapter system|
|US9083589||6 Mar 2014||14 Jul 2015||Proteus Digital Health, Inc.||Active signal processing personal health signal receivers|
|US9107594||7 Jul 2014||18 Ago 2015||Covidien Lp||ECG electrode connector|
|US9107806||18 Nov 2011||18 Ago 2015||Proteus Digital Health, Inc.||Ingestible device with pharmaceutical product|
|US9119554||18 Nov 2010||1 Sep 2015||Proteus Digital Health, Inc.||Pharma-informatics system|
|US9119918||8 May 2013||1 Sep 2015||Proteus Digital Health, Inc.||Probablistic pharmacokinetic and pharmacodynamic modeling|
|US9138589||4 Abr 2014||22 Sep 2015||Cameron Health, Inc.||Apparatus and method for identifying atrial arrhythmia by far-field sensing|
|US9144683||30 Oct 2006||29 Sep 2015||Cameron Health, Inc.||Post-shock treatment in a subcutaneous device|
|US9149423||10 May 2010||6 Oct 2015||Proteus Digital Health, Inc.||Ingestible event markers comprising an ingestible component|
|US9149577||30 Abr 2013||6 Oct 2015||Proteus Digital Health, Inc.||Body-associated receiver and method|
|US9161707||12 Sep 2014||20 Oct 2015||Proteus Digital Health, Inc.||Communication system incorporated in an ingestible product|
|US20020107549 *||5 Nov 2001||8 Ago 2002||Cameron Health, Inc.||Subcutaneous electrode with improved contact shape for transthorasic conduction|
|US20030233110 *||7 Abr 2003||18 Dic 2003||Jesseph Jerry M.||Device and method for improved diagnosis and treatment of cancer|
|US20050240232 *||5 Nov 2001||27 Oct 2005||Cameron Health, Inc.||Subcutaneous electrode with improved contact shape for transthorasic conduction|
|US20070167089 *||17 Ene 2007||19 Jul 2007||Stephane Gobron||Multi-lead keyhole connector|
|US20070260133 *||28 Sep 2006||8 Nov 2007||Tycohealthcare Group Lp||Radial electrode array|
|US20080081954 *||28 Sep 2006||3 Abr 2008||Meyer Peter F||Cable monitoring apparatus|
|US20080177168 *||5 Dic 2007||24 Jul 2008||Mark Callahan||Ecg lead wire organizer and dispenser|
|US20090088652 *||28 Sep 2007||2 Abr 2009||Kathleen Tremblay||Physiological sensor placement and signal transmission device|
|US20090227856 *||19 Dic 2008||10 Sep 2009||Brian Keith Russell||Electrocardiogram sensor|
|US20100022865 *||1 Oct 2009||28 Ene 2010||Tyco Healthcare Group Lp||Radial Electrode Array|
|US20100140500 *||19 Jun 2008||10 Jun 2010||Therapy Positioning Technologies, Llc||Apparatus and method for the treatment of breast cancer with particle beams|
|US20100292605 *||31 Mar 2010||18 Nov 2010||Dragerwerk AG & Co. KGaA||Double temperature sensor|
|US20140187063 *||15 Mar 2013||3 Jul 2014||Suunto Oy||Male end of a telemetric transceiver|
|USD737979||26 Mar 2014||1 Sep 2015||Covidien Lp||ECG electrode connector|
|USRE32724 *||11 Oct 1985||2 Ago 1988||American Hospital Supply Corporation||Reusable medical electrode having disposable electrolyte carrier|
|DE2735050A1 *||3 Ago 1977||8 Feb 1979||Siemens Ag||Electrode accepting and sending physiological signals - contains polyether foam inserts having closed pore surface on application side|
|EP0000759A1 *||31 Jul 1978||21 Feb 1979||Siemens Aktiengesellschaft||Electrode|
|WO1979000042A1 *||7 Jul 1978||8 Feb 1979||A Mercuri||Biomedical electrode assembly|
|WO1996011631A1 *||16 Oct 1995||25 Abr 1996||Biofield Corp||Dc biopotential sensing electrode and electroconductive medium for use therein|
|Clasificación de EE.UU.||600/391|