Recherche Images Maps Play YouTube Actualités Gmail Drive Plus »
Connexion
Les utilisateurs de lecteurs d'écran peuvent cliquer sur ce lien pour activer le mode d'accessibilité. Celui-ci propose les mêmes fonctionnalités principales, mais il est optimisé pour votre lecteur d'écran.

Brevets

  1. Recherche avancée dans les brevets
Numéro de publicationUS1983669 A
Type de publicationOctroi
Date de publication11 déc. 1934
Date de dépôt19 avr. 1933
Date de priorité19 avr. 1933
Numéro de publicationUS 1983669 A, US 1983669A, US-A-1983669, US1983669 A, US1983669A
InventeursKimble Harley E
Cessionnaire d'origineGen Electric X Ray Corp
Exporter la citationBiBTeX, EndNote, RefMan
Liens externes: USPTO, Cession USPTO, Espacenet
Electrode
US 1983669 A
Résumé  disponible en
Images(1)
Previous page
Next page
Revendications  disponible en
Description  (Le texte OCR peut contenir des erreurs.)

H. E. KIMBLE ELECTRODE Filed April 19, 1953 m n T N m w a In /A I M FE Y Erv H RE UU 0Q 5:. mm

Patented Dec. 11, 1934 UNITED STATES PATENT OFFICE ELECTRODE a corporation of New Application April 19,

3 Claims.

The present invention has to do with an electrode and relates particularly to a device for use in coagulation in small orifices of the human body. The device is highly useful in the cervix.

5 The utility of the electrode is most noticeable when it is employed for coagulation in openings of small diameter and in fissured openings.

The primary object of the present invent-ion is the provision of an electrode in which the conductors are spaced closely together.

A second object of the present invention is the provision of an electrode of novel structure. Another object of the invention is the provision of an electrode comprising twisted conductors suitably insulated one from the other.

Still another object of the invention is the provision of an electrode which comprises closely positioned conductors, the distance between the opposed conductors being less than in the usual type of device of this character and the separation being helical rather than linear.

A further object of the present invention is the provision of an electrode which may be moved rotatively, longitudinally or laterally during treatments therewith, as preferred.

These objects, and such other objects as may hereinafter appear, are obtained from the novel construction, improved combination, and superior arrangement of the elements shown in the electrode illustrated in the accompanying drawing and embodying one form of the invention, and in which drawing:-

Figure l is an elevation of an electrode embracing the subject matter of the invention; and

Figure 2 is a transverse section of the electrode taken on the line 2-2 of Figure 1, looking in the direction of the arrows.

Like reference characters are used to designate similar parts in the description which follows and in the drawing.

Heretofore it has been proposed to employ for diathermy an electrode in which the current is applied by two independent and linearly spacedapart conducting points. It is true that in some such devices the points, when disposed at the ends of an electrode may be bent to regulate the distance therebetween, that is, to bring them into approximation or to space them apart.

But no matter how closed the conducting points are when brought together, it is necessary in such an electrode to impart a lateral movement thereto to insure against the electrode points sticking as they will do if not continuously moved across the tissue to which applied.

Thus electrodes with two conducting points York 1933, Serial No. 666,839

with linear spacing, while highly effective for certain conditions, possess other inherent limitations. Such limitations the present device overcomes.

In the drawing, an elongated electrode of rodlike configuration is shown. This comprises a core 10 which later will be described in greater detail. About such core 10 is an insulator 11. In a rigid type of electrode, the insulator 11 may be of hard rubber or any other suitable dielectric. The ends of the body 11 may be provided with collars 12 and 13 as shown. Such collars 12 and 13 generally are of hard rubber or of an equivalent dielectric. When and if a flexible electrode body is desired, the body may be of a pure gum rubber either with or without end collars of hard rubber or other dielectric material.

At one end of the electrode are paired spacedapart contacts 14 and 15 which extend in parallelism for insertion into a socket 16 from which suitable cords 17 and 18 providing conduits to a source of electromotive force which is to be impressed upon the tip of the electrode.

Within the body 11 and preferably adjacent to the usual tips of the device, the two contacts 14 and 15 may become the core 10 and are maintained against contact with each other by the material of the body 11 of the handle. These then are twisted one about the other with an insulatory meaterial 19 intermediate the contiguous portions of the conductors so that no short circuit may occur between such conductors.

Thus the entire exposed usable tip portions of the conductors comprise two twisted wires, 20 and 21, charged with high frequency energy. The wires 20 and 21 are separated one from the other by the laminations of insulatory material 19 which is an effective dielectric for use with high frequency. The two conductors 20 and 21 thus are brought into close proximity with little space between them at any place.

Due to the propensity of conductors carrying high frequency to fry the tissue if allowed to remain too long in one position and thus stick to the tissue, it is necessary to continuously move the conductors over the part under treatment. Hence, when a two point electrode with linearly spaced conductors is employed, it is advisable to move the two tips laterally across the treated tissue so that each of the conductors contact the area for limited and substantially equal periods of time.

This is possible with linearly separated conductors so long as the orifice of the body is suinciently large to permit of lateral movement of the electrode. But in the cervix and. perhaps in trode.

other relatively small orifices, or in fissured orifices, the electrode with linearly spaced conductors cannot possibly be moved laterally without distorting the part and hence such electrode is inefficient. Under some circumstances, such an electrode is almost useless'because of the inability to contact the affected area with both conductors at the sametime.

It is for'better meeting-such conditions as those which have just been described that the present invention was conceived.

As the only movements possible when an elece trade is placed in small orifices or the fissured sides of an orifice are oneyofz penetration anchremoval, which movementsarein the direction: of the axis of the electrode, or of rotation after' insertion, the present type of. twisted electrode.- has been developed. At all times, the two conductors are in close proximity. This approximation is greater than inany other type of electrode. The twistingoftwo conductors of'the' electrode-permits-of a constant change in-conductors incontact withanyportion ofthe tissue by'a slight longitudinal movement of the elec- Likewise a rotary movement of the'electrode brings the two conductors oneafteranother over an area in close-succession.

No lateral movement is necessary for such change of the conductorsof the electrode in contact with the part subject to coagulation.-

Inthe event that it is desired to move the electrode laterally, however,- exactly the same results obtain. Movement of the electrode in a line tangential to'thesurface of the electrodebrings tips of the electrodes-maybeused for linear-work;

The electrode illustrated may be used with but a small portion of its length in any orifice into which it is inserted. On the other hand, substantially its entire length may be employed for effective large surface coagulation.

The electrode as described and illustrated may be made into many forms and may be materially modifiedwithout-departingafromthe spirit of the invention; Inthe simpleiorm of the invention which is shown, the electrode is equally effective whether longitudinally, rotatively or laterally moved.

An effective form of electrode is provided by employing: two .halfi round members as conductors; Thesemayibesemi-circular in cross section. Intermediate' the fiat-faces of the two members insulation isdisposed. The unit formed of the two half round members and the intermediate insulationisthen spirally twisted.

What is claimed as new and is desired to be securedbylletters Patent of the-United Statesis:

1; An: electrode comprising" two helical conducting members with insulation therebetween,

said electrode'beingsubstantially'circular in cross section; the "periphery of the insulation intermediate the conducting members in such cross section having-a radius slightlylessthan the radius of the periphery of the-conducting memhers-therein:

2. An electrodecomprisinga-harxdie; and conduct0rsprojecting" therefrom; said conductors comprising one member twistedfabout another; with insulatory material therebetween; the two conductors" providing a rod like part; generallycircular in cross section with exposed substantiallycylindrical conducting areas ihaving a narrow" helix of insulatory material therebetween:

3." The electrode describedin' claim- 2 inwhich said" conductors are half round members; and

the insulatory'material is between the flat faces

Référencé par
Brevet citant Date de dépôt Date de publication Déposant Titre
US2458601 *24 mars 194411 janv. 1949Bell Telephone Labor IncMethod of and apparatus for measuring pressure
US3831607 *7 mars 197327 août 1974Lindemann HElectrocoagulation grasping forceps for tube sterilization by means of bipolar high frequency heat radiation
US3901242 *30 mai 197426 août 1975Storz Endoskop GmbhElectric surgical instrument
US3920021 *15 mai 197418 nov. 1975Siegfried HiltebrandtCoagulating devices
US3970088 *24 avr. 197520 juil. 1976Valleylab, Inc.Electrosurgical devices having sesquipolar electrode structures incorporated therein
US3987795 *28 août 197426 oct. 1976Valleylab, Inc.Electrosurgical devices having sesquipolar electrode structures incorporated therein
US4476862 *30 sept. 198216 oct. 1984Pao David S CMethod of scleral marking
US4532924 *30 avr. 19826 août 1985American Hospital Supply CorporationMultipolar electrosurgical device and method
US4548207 *17 nov. 198222 oct. 1985Mentor O & O, Inc.Disposable coagulator
US4674499 *10 janv. 198523 juin 1987Pao David S CCoaxial bipolar probe
US4765331 *10 févr. 198723 août 1988Circon CorporationElectrosurgical device with treatment arc of less than 360 degrees
US4805616 *20 nov. 198621 févr. 1989Pao David S CBipolar probes for ophthalmic surgery and methods of performing anterior capsulotomy
US5290285 *23 avr. 19921 mars 1994Kirwan Surgical Products, Inc.Electrocautery device having two electrically active areas of the terminal end spaced from each other
US5342357 *13 nov. 199230 août 1994American Cardiac Ablation Co., Inc.Fluid cooled electrosurgical cauterization system
US5383876 *22 mars 199424 janv. 1995American Cardiac Ablation Co., Inc.Fluid cooled electrosurgical probe for cutting and cauterizing tissue
US5437662 *17 févr. 19941 août 1995American Cardiac Ablation Co., Inc.Fluid cooled electrosurgical cauterization system
US5507744 *30 avr. 199316 avr. 1996Scimed Life Systems, Inc.Apparatus and method for sealing vascular punctures
US5810810 *6 juin 199522 sept. 1998Scimed Life Systems, Inc.Apparatus and method for sealing vascular punctures
US5938658 *2 déc. 199717 août 1999Tu; HoshengDevice and methods for treating canker sores by RF ablation
US5944715 *25 nov. 199631 août 1999Gyrus Medical LimitedElectrosurgical instrument
US6004319 *20 juin 199621 déc. 1999Gyrus Medical LimitedElectrosurgical instrument
US6013076 *25 oct. 199611 janv. 2000Gyrus Medical LimitedElectrosurgical instrument
US6015406 *21 août 199618 janv. 2000Gyrus Medical LimitedElectrosurgical instrument
US6027501 *20 juin 199822 févr. 2000Gyrus Medical LimitedElectrosurgical instrument
US6056746 *27 mars 19982 mai 2000Gyrus Medical LimitedElectrosurgical instrument
US6063085 *22 oct. 199316 mai 2000Scimed Life Systems, Inc.Apparatus and method for sealing vascular punctures
US6090106 *26 mars 199818 juil. 2000Gyrus Medical LimitedElectrosurgical instrument
US6093186 *18 déc. 199725 juil. 2000Gyrus Medical LimitedElectrosurgical generator and system
US617430826 mai 199916 janv. 2001Gyrus Medical LimitedElectrosurgical instrument
US621040517 juin 19973 avr. 2001Gyrus Medical LimitedUnder water treatment
US623417827 mai 199922 mai 2001Gyrus Medical LimitedElectrosurgical instrument
US626128616 oct. 199817 juil. 2001Gyrus Medical LimitedElectrosurgical generator and system
US627711418 mars 199921 août 2001Gyrus Medical LimitedElectrode assembly for an electrosurical instrument
US62939422 mai 199625 sept. 2001Gyrus Medical LimitedElectrosurgical generator method
US630613416 oct. 199823 oct. 2001Gyrus Medical LimitedElectrosurgical generator and system
US63582739 avr. 199919 mars 2002Oratec Inventions, Inc.Soft tissue heating apparatus with independent, cooperative heating sources
US636487716 oct. 19982 avr. 2002Gyrus Medical LimitedElectrosurgical generator and system
US63793505 oct. 199930 avr. 2002Oratec Interventions, Inc.Surgical instrument for ablation and aspiration
US639102816 mai 200021 mai 2002Oratec Interventions, Inc.Probe with distally orientated concave curve for arthroscopic surgery
US641650926 mars 19989 juil. 2002Gyrus Medical LimitedElectrosurgical generator and system
US646135725 juin 19998 oct. 2002Oratec Interventions, Inc.Electrode for electrosurgical ablation of tissue
US648220210 janv. 200119 nov. 2002Gyrus Medical LimitedUnder water treatment
US654426031 déc. 19998 avr. 2003Oratec Interventions, Inc.Method for treating tissue in arthroscopic environment using precooling and apparatus for same
US65655613 avr. 200020 mai 2003Cyrus Medical LimitedElectrosurgical instrument
US66452032 janv. 200111 nov. 2003Oratec Interventions, Inc.Surgical instrument with off-axis electrode
US66958398 févr. 200124 févr. 2004Oratec Interventions, Inc.Method and apparatus for treatment of disrupted articular cartilage
US6712813 *26 sept. 200130 mars 2004Alan G. EllmanRF probe for electrosurgical instrument
US67801808 mars 200024 août 2004Gyrus Medical LimitedElectrosurgical instrument
US693934628 juin 20026 sept. 2005Oratec Interventions, Inc.Method and apparatus for controlling a temperature-controlled probe
US699794117 mars 200314 févr. 2006Oratec Interventions, Inc.Method and apparatus for treating annular fissures in intervertebral discs
US722644723 juin 20045 juin 2007Smith & Nephew, Inc.Electrosurgical generator
US726768314 nov. 200311 sept. 2007Oratec Interventions, Inc.Method for treating intervertebral discs
US728206114 nov. 200316 oct. 2007Oratec Interventions, Inc.Method of treating intervertebral disc
US740093014 nov. 200315 juil. 2008Oratec Interventions, Inc.Method for treating intervertebral discs
US765500322 juin 20052 févr. 2010Smith & Nephew, Inc.Electrosurgical power control
US805267521 janv. 20108 nov. 2011Smith & Nephew, Inc.Electrosurgical power control
US818731215 oct. 200729 mai 2012Neurotherm, Inc.Method for treating intervertebral disc
US822669715 oct. 200724 juil. 2012Neurotherm, Inc.Method for treating intervertebral disc
US834893423 sept. 20118 janv. 2013Smith & Nephew, Inc.Electrosurgical power control
US836670615 août 20085 févr. 2013Cardiodex, Ltd.Systems and methods for puncture closure
US837207222 nov. 201112 févr. 2013Cardiodex Ltd.Methods and apparatus for hemostasis following arterial catheterization
US843523621 nov. 20057 mai 2013Cardiodex, Ltd.Techniques for heat-treating varicose veins
US86030825 déc. 201210 déc. 2013Smith & Nephew, Inc.Electrosurgical power control
US9023042 *9 sept. 20105 mai 2015Keith HuronBipolar electrosurgical coagulator
US20030060818 *28 juin 200227 mars 2003Oratec Interventions, Inc.Method and apparatus for controlling a temperature-controlled probe
US20080004619 *28 juin 20073 janv. 2008Synergetics Usa, Inc.Electrosurgical bipolar instrument
US20080091252 *15 oct. 200717 avr. 2008Oratec Interventions, Inc., A California CorporationMethod for treating intervertebral disc
US20100121317 *21 janv. 201013 mai 2010Smith & Nephew, Inc.Electrosurgical Power Control
USRE40863 *22 oct. 199321 juil. 2009Boston Scientific Scimed, Inc.Apparatus and method for sealing vascular punctures
EP1344498B1 *9 janv. 19979 nov. 2005Gyrus Medical LimitedAn electrosurgical instrument
WO1981003271A1 *28 oct. 198026 nov. 1981American Hospital Supply CorpA multipolar electrosurgical device
WO1981003272A1 *4 mai 198126 nov. 1981American Hospital Supply CorpA multipolar electrosurgical device
WO1994010924A1 *1 nov. 199326 mai 1994American Cardiac Ablation Co., Inc.Fluid cooled electrosurgical probe
WO1997024994A1 *9 janv. 199717 juil. 1997Gyrus Medical LimitedAn underwater electrosurgical instrument
WO2012142448A113 avr. 201218 oct. 2012Galil Medical Inc.Method of cauterization with a cryoprobe
Classifications
Classification aux États-Unis606/50, 607/138, 174/116, 174/114.00S
Classification internationaleA61B18/14
Classification coopérativeA61B18/1485, A61B18/1402
Classification européenneA61B18/14S