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WO1998034679A1 - Electrode neutre reutilisable indiquee pour l'electrochirurgie - Google Patents

Electrode neutre reutilisable indiquee pour l'electrochirurgie Download PDF

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Publication number
WO1998034679A1
WO1998034679A1 PCT/ES1998/000028 ES9800028W WO9834679A1 WO 1998034679 A1 WO1998034679 A1 WO 1998034679A1 ES 9800028 W ES9800028 W ES 9800028W WO 9834679 A1 WO9834679 A1 WO 9834679A1
Authority
WO
WIPO (PCT)
Prior art keywords
electrode
neutral electrode
reusable
neutral
electrosurgery
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/ES1998/000028
Other languages
English (en)
Spanish (es)
Inventor
Carlos Gonzalez Garcia
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of WO1998034679A1 publication Critical patent/WO1998034679A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/08—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by means of electrically-heated probes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
    • A61B18/14—Probes or electrodes therefor
    • A61B18/16—Indifferent or passive electrodes for grounding
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/02—Details
    • A61N1/04—Electrodes
    • A61N1/06—Electrodes for high-frequency therapy

Definitions

  • the present invention relates to a new concept of the element of an electrosurgery known as dispersive electrode, neutral electrode, or return electrode, used in electrosurgery.
  • An electrosurgical device is a surgical instrument consisting of three elements reflected in Figure 1: a high frequency generator -1-, an active electrode -2- and a neutral or dispersive electrode -3-.
  • a problem presented by current electrodes is that, when they are designed for single use, they are economically expensive to manufacture and use.
  • a second problem is the high volume and toxicity of waste generated due to the components used in its manufacture, mainly based on acrylic and thermoplastic products, making it difficult to eliminate it by generating a high level of dioxin emission in its incineration.
  • a third problem is the skin trauma caused by the withdrawal of the return electrode after surgery due to the high adhesive capacity of the adhesive element.
  • a fourth problem is, despite the compatibility of existing systems, that a neutral electrode will only be fully operational with its specific high frequency generator model.
  • the object of the present invention is to offer the possibility of having a device that is economically less expensive, that is adequate to the current safety requirements for both the patient and the professional, that is functionally more effective in response to a wide range of Surgical needs, that is of simple application without increasing the conventional scheme of work of the personnel of the hospital center and that its use generates a minimum volume of non-polluting residues thanks to the easy elimination of the integral components of the disposable element.
  • Second figure.- Shows in detail the neutral electrode object of the present invention.
  • Third figure.- It illustrates some of the different forms that the neutral electrode object of the present invention can take.
  • the neutral electrode object of this invention patent whose scheme is presented in figure no. 2 allows to reuse the elements that do not have direct contact with the patient, that is, the connection cable to the generator -4- and the electrode itself -6-, which will be integrated and protected by a flexible backup support -5- that will avoid any accidental high-frequency referral to hospital staff and effective protection against fluids occasionally spilled on the contact electrode -6-, which may be single -8- or double -6-, depending on the generator used and the User body structure, allowing to reuse this element
  • the patient contact element is formed by a disposable sheet of conductive wet gel -7- with adhesive properties on both sides.
  • the new neutral electrode object of the present invention has a reusable element independent of the disposable conductive contact gel with the patient.
  • the reusable element is provided with a connection cable with the high frequency generator that has an encapsulated connection system designed in such a way that minimizes the fatigue produced in the cable as consequence of multiple reconnections to the generator.
  • the cable -4- is made of a flexible material resistant to torsion and tensile and insulating, with a length between 3 and 5 meters whose conductive cores will have a suitable section according to the maximum power in high frequency generators (normally 300 watts) and with a resistance, in any case, less than 1 ohm.
  • connection of the cable cores with the electrode -6- integrated in the backing material -5- is carried out by means of joining clips or any type of welding that does not affect the total resistance of the assembly, the connection of the connection cable being with the metal electrode coated and integrated, for its isolation, in the backup material as shown in figure 3. Its dimensions will be determined by the patient's body surface and the generator output power used in the intervention.
  • the backing material is composed of a support made of a flexible and waterproof material such as silicone. It may take different forms that will condition the format of the conductive gel, some of which are schematically illustrated in Figure num. 3 designated with the letters a), b), c) and d), the preferred forms being a) and b). Its fundamental function is to act as carrier support of the contact or metallic contacts arranged in sheets that configure the dispersion zone -6-.
  • the fundamental element is the disposable conductive gel, which is in contact with the patient's tissue and the support element described above, whose purpose is to transfer to the generator, by fixing the back support of the gel, the high frequency induced by the electrode active. Its dimensions will match those of the back support, which will be sized according to the patient's body surface. It is configured as a sheet of an approximate thickness of one to three millimeters with a jelly-like consistency and composed of a water base of at least 38%, and metallic particles in suspension predominantly, among others, magnesium and, to a lesser extent, silicon , zinc and aluminum, which increase the conductivity of the base and significantly reduce the contact impedance of the electrode.
  • This composition makes it possible to avoid unwanted separations between the disposable gel sheet or contact area and the skin resting below effectively supporting the usual working conditions in terms of adhesion, surface formability and fluid tolerance, minimizing the risk of electrosurgical burns.
  • the use is especially suitable for high frequency generators that have the contact quality control system, totally eliminating the risk of electrosurgical burns.
  • the disposable gel provides bacterial protection on the applied surface.
  • the reusable element is long lasting and low maintenance because it does not require special storage conditions; It is easy to clean after use because it lacks pronounced angles and cavities, even supporting the sterilization commonly used in operating rooms.

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • Biomedical Technology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Otolaryngology (AREA)
  • Plasma & Fusion (AREA)
  • Physics & Mathematics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Surgical Instruments (AREA)
  • Electrotherapy Devices (AREA)

Abstract

Electrode neutre d'électrobistouri réutilisable comportant un gel conducteur jetable indépendant, constituée d'une feuille de gel conducteur adhésif optimisant le contact avec la peau du patient et permettant de coller une matière de dossier réutilisable et flexible, laquelle relie l'électrode de retour et le câble de connexion au générateur. Ladite électrode neutre augmente la sécurité vis-à-vis du patient et produit une quantité moindre de résidus. Elle peut être utilisée lors d'interventions chirurgicales qui sont effectuées avec des générateurs de haute fréquence.
PCT/ES1998/000028 1997-02-10 1998-02-10 Electrode neutre reutilisable indiquee pour l'electrochirurgie Ceased WO1998034679A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ESP9700378 1997-02-10
ES9700378A ES2128973B1 (es) 1997-02-10 1997-02-10 Electrodo neutro de electrobisturi reutilizable con gel conductor desechable independiente.

Publications (1)

Publication Number Publication Date
WO1998034679A1 true WO1998034679A1 (fr) 1998-08-13

Family

ID=8298359

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/ES1998/000028 Ceased WO1998034679A1 (fr) 1997-02-10 1998-02-10 Electrode neutre reutilisable indiquee pour l'electrochirurgie

Country Status (2)

Country Link
ES (1) ES2128973B1 (fr)
WO (1) WO1998034679A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011033485A1 (fr) 2009-09-18 2011-03-24 Sugherificio Colla E Fresu S.R.L. Bouchon et son procédé de fabrication
ITMI20100750A1 (it) * 2010-04-30 2011-10-31 Fis Srl Apparecchiatura elettromedicale per applicazioni diatermiche

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5263481A (en) * 1992-05-21 1993-11-23 Jens Axelgaard Electrode system with disposable gel
US5330526A (en) * 1992-05-01 1994-07-19 Zmd Corporation Combined defibrillation and pacing electrode
WO1994015527A1 (fr) * 1993-01-11 1994-07-21 Jens Axelgaard Systeme medical a electrodes

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4706680A (en) * 1986-06-30 1987-11-17 Nepera Inc. Conductive adhesive medical electrode assemblies
NL9300028A (nl) * 1993-01-07 1994-08-01 Academisch Ziekenhuis Utrecht Werkwijze voor het met behulp van een catheter meten van de elektrische impedantie in bloedvaten en catheterisatiesysteem voor het uitvoeren van die werkwijze.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5330526A (en) * 1992-05-01 1994-07-19 Zmd Corporation Combined defibrillation and pacing electrode
US5263481A (en) * 1992-05-21 1993-11-23 Jens Axelgaard Electrode system with disposable gel
WO1994015527A1 (fr) * 1993-01-11 1994-07-21 Jens Axelgaard Systeme medical a electrodes

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011033485A1 (fr) 2009-09-18 2011-03-24 Sugherificio Colla E Fresu S.R.L. Bouchon et son procédé de fabrication
ITMI20100750A1 (it) * 2010-04-30 2011-10-31 Fis Srl Apparecchiatura elettromedicale per applicazioni diatermiche

Also Published As

Publication number Publication date
ES2128973A1 (es) 1999-05-16
ES2128973B1 (es) 2000-01-01

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