US3807404A - Probe unit for electro-surgical device - Google Patents

Probe unit for electro-surgical device Download PDF

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Publication number
US3807404A
US3807404A US00340294A US34029473A US3807404A US 3807404 A US3807404 A US 3807404A US 00340294 A US00340294 A US 00340294A US 34029473 A US34029473 A US 34029473A US 3807404 A US3807404 A US 3807404A
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US
United States
Prior art keywords
probe unit
shell
sleeve
nose piece
wire
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.)
Expired - Lifetime
Application number
US00340294A
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English (en)
Inventor
B Weissman
A Miller
W Fredericks
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.)
Coltene Holding AG
Original Assignee
Whaledent Inc
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 Whaledent Inc filed Critical Whaledent Inc
Priority to US00340294A priority Critical patent/US3807404A/en
Priority to CA190,553A priority patent/CA1015404A/en
Priority to GB420874A priority patent/GB1430694A/en
Priority to DE2404764A priority patent/DE2404764A1/de
Priority to CH174974A priority patent/CH570808A5/xx
Priority to SE7402170A priority patent/SE396696B/xx
Priority to DK130274AA priority patent/DK142761B/da
Priority to FR7408152A priority patent/FR2221112B1/fr
Priority to JP49028998A priority patent/JPS49126193A/ja
Priority to IT49484/74A priority patent/IT1015865B/it
Application granted granted Critical
Publication of US3807404A publication Critical patent/US3807404A/en
Priority to JP1978106670U priority patent/JPS5554487Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/12Surgical 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
    • A61B18/14Probes or electrodes therefor
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/12Surgical 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
    • A61B18/14Probes or electrodes therefor
    • A61B18/1402Probes for open surgery
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/12Surgical 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
    • A61B18/1206Generators therefor
    • A61B2018/1246Generators therefor characterised by the output polarity
    • A61B2018/1253Generators therefor characterised by the output polarity monopolar
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/12Surgical 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
    • A61B18/14Probes or electrodes therefor
    • A61B2018/1405Electrodes having a specific shape
    • A61B2018/1407Loop

Definitions

  • a probe unit for applying high level high frequency voltages to tissues to be treated has a tubular handpiece having an operative end and a female connector fixed at the operative end and connectable to a source of high level high frequency voltage.
  • An interchangeable plastic nose piece which can be conical or contra-angled in shape, includes a proximal end provided with a mating male connector electrically engageable with the female connector.
  • An elongate conductor sleeve is in electrical communication with the male connector and extends to a distal end remote from the proximal end of the nosev piece.
  • a disposable probe tip which includes a cutting tip, is configurated so as to be receivable in the elongate sleeve of the nose piece.
  • the probe tip has an elongate insulating cylindrical shell having two axial slots.
  • a resilient conductive wire which forms part of the external cutting tip, extends partially interiorly of the shell to form two spaced opposing resilient arcuate portions which pass through the respective slots and which are depressible into the shell. In this manner, insertion of the shell into the sleeve depresses the arcuate portions to thereby provide frictional. engagement and electrical contact between the cutting tip and the sleeve.
  • the probe units utilized in conjunction with electro-surgical devices of the prior art have several drawbacks which the present invention resolves.
  • the conventional probe unit is provided with a handpiece on which is mounted, at the operative end, a chuck.
  • the chuck utilized is not unlike that used on drills.
  • the probe or operating tip is inserted into the chuck and the latter is adjusted to provide a secure grip on the operating tip simultaneously providing electrical continuity between the high level highfrequency voltage source and the operating tip of the probe unit.
  • Theconventional arrangement is inconvenient since, in order to "provide good electrical contact, the chuck must be tightened this frequently requiring an additional tool.
  • the chuck forms a permanent part of the probe unit, this limiting the available configurations provided at the operative end for use in special medical procedures.
  • the operating tip of the prior art is not disposable and is reused after appropriate treatment of the tip. Consequently, the probe unit of the prior art frequently causes time delays resulting from the necessity of first sanitizing the operating tip subsequent to a prior operation.
  • An additional disadvantage of the prior art probe units is that the probe tip, once secured in the chuck, is not capable of rotation within the chuck. Consequently, in order to orient the. operating tip in a desired position, it is necessary to rotate or manipulate the handpiece. In order to change the orientation of the operating tip during an operation, the chuck first has to be loosened so as to loosen the operating tip.
  • a still further disadvantage of the conventional probe unit is the inconvenient placement of the power control switch.
  • the conventional elec-tro-surgicaldevice typically includes a console which is connected to the probe unit by means of a coaxial cable.
  • the power control switch has commonly been provided on the console; Such an arrangement requires the user to turn 'to the console whenever the power is to be turned on or off an inconvenience which is time consuming.
  • a probe unit for applying a high level high frequency voltage to tissue to be treated comprises an elongate tubular handpiece having an operative end.
  • a conductive connector element is disposed at said operative end and is connectable to a source of high level high frequency voltage.
  • An elongate nose piece has a proximal end and a distal end. Said proximal end is providedwith a portion generally having configuration complimentary to said operative end and said connector element. Electrical conductor means extends between said proximal and distal ends.
  • Said conductor means includes a portion at said proximal end engageable with said connector element and a conductive sleeve portion at said distal end.
  • a probe tip comprises an elongate insulating cylindrical shell receivable in said sleeve portion. Said shell has two opposing axial .slots and a narrowed axial end.
  • a resilient wire forms a first'po'rtion extending beyond said narrowed axial end to form an external operating tip.
  • the resilient wire also forms a second portion disposed inside said shell. The second portion is provided with two spaced opposing resilient arcuate portions passing through said respective slots and being depressible into said shell. In thismanner, insertion of said shell'into said sleeve portion partially depresses saidarcuate portion to thereby provide frictional engagement and electrical contact between said wire and said sleeve portion.
  • said handpiece is connected to a source of high level high frequencyvoltage.
  • a switch is mounted on said handpiece at said operative end. The switch is operatively connected to the source of voltage so that the application of voltage of the probe tip is controllable by manipulating said switch on said handpiece.
  • Said conductive connector element comprises a female connector and the conductor means portion at said proximal end comprises a male connector engageable with said female connector.
  • the nose piece is advantageously made from plastic and has a proximal end which is exteriorly cylindrical.
  • the distal end of the nose piece can either be conical or contraangled in shape the distal ends being tapered away from said proximal end in each case.
  • the sleeve portion is embedded in and extends through the distal end of the plastic nose piece.
  • biasing means is interposed between the operative end and the nose piece to provide frictional retention therebetween.
  • the present invention also contemplates a novel disposable probe tip which is insertable into a conductive sleeve of a probe unit utilized in conjunction with an electro-surgical device.
  • the resilient wire is, according to the preferred embodiment, a continuous section substantially doubled up with the two wire ends forming part of said second wire portion disposed inside said shell.
  • Said first portion is generally in the form of a diamond shaped loop.
  • the wire is configurated in a manner so that the loop defines a first plane and the second wire portion defines a second plane substantially normal to the first plane.
  • FIG. 1 is a longitudinal cross sectional view of the probe unit in accordance with the present invention.
  • FIG. 2 is an exploded enlarged view of the operative end of the probe unit of FIG. 1, showing a nose piece and a probe tip separated from the handpiece but aligned for engagement and mutual connection;
  • FIG. 3 is similar to FIG. 2, but showing a differently shaped nose piece connected to the handpiece, and the probe tip mounted in the nose piece;
  • FIG. 4 is an enlarged top view of a probe tip in accordance with the present invention.
  • FIG. 5 is a longitudinal cross section taken through line 5-5 of FIG. 4;
  • FIG. 6 is a transverse cross section taken through line 6-6 of FIG. 4.
  • a probe unit in accordance with the present invention is generally designated by the reference numeral 10.
  • the probe unit 10 comprises a plastic tubular housing 12 which has an operative end 13. Removed from the operative end is a transparent tubular wall or lens 14 which is connected to the tubular housing 12 and forms therewith a hand held portion or handpiece of the probe unit.
  • a connector element in the form of a female connector 20.
  • a pin 22 secures the connector 20 to the operative end of the tubular housing 12.
  • a synthetic resin nose piece 24, to be more fully described hereafter, includes a proximal cylindrical section 26 which is internally dimensioned in a complimentary manner to the shapes of operative end 13 and connector element 20 so as to receive the same interiorly thereof.
  • a spring 28 is advantageously provided between the operative end 13 and the cylindrical section 26 to increase the extent with which frictional engagement is obtained for insuring frictional retention between the nose piece 24 and the operative end 13.
  • Electrical conductor means including a male connector pin 30 is provided at a proximal end of the nose piece 24 which is adapted to be electrically engageable with the female connector 20.
  • a conductive sleeve 32 in electrical communication with the connector 30, forms part of the electrical conductor means and extends through a distal end of the nose piece 24 opening exteriorly of the nose piece so as to have the interior of the conductive sleeve 32 exteriorly accessible.
  • a probe tip 33 in accordancewith the present invention comprises a substantially cylindrical shell 34 whose external dimensions closely approximate the internal dimensions of the conductive sleeve 32 so that the shell is receivable in the latter.
  • a substantially cylindrical shell 34 whose external dimensions closely approximate the internal dimensions of the conductive sleeve 32 so that the shell is receivable in the latter.
  • a conductive resilient wire 37 is provided interiorly of the shell 34, arcuate portions 36 thereof extending through the axial slots 35. Another portion of the resilient portion extends through an open axial end of the shell 34 to form a substantially closed loop 38 in the form of a cutting tip.
  • a coaxial cable 40 enters interiorly'of the probe unit 10.
  • a shrink tube 42 is advantageously provided which encloses and supports the coaxial cable.
  • the coaxial cable is advantageously provided with conductors which carry the high level high frequency voltages to the probe unit 10. The electrical arrangement for accomplishing this is well known to those skilled in the art. Typically, the high level high frequency voltage carrying conductor 40a of the coaxial cable 40 is directly connected to the connector element 20.
  • a portion 40b of the high level high voltage carrying cable is also connected to one lead of a neon lamp 44 the other lead (not shown) of the neon lamp being capacitively coupled to the grounded shield 40c on the coaxial cable 40.
  • Such capacitive coupling limits the maximum current passing through the neon lamp 44.
  • the lamp glows and thereby provides an indication of when the voltage at the cutting tip 38 exceeds the breakdown voltage of the lamp 44 and high level high frequency voltage is being applied to the cutting tip 38.
  • the specific arrangement of the high level high frequency voltage cables and their connections i'nteriorly of the probe unit 10 are conventional and any other arrangement for applying the desired voltages to the cutting tip 38 may be utilized.
  • the probe unit 10 is connected to an electro-surgical device which generates the high level high frequency voltage.
  • the probe unit is connected to the console by means of the coaxial cable 40.
  • One of the novel features of the present invention is the provision of a micro-switch 46 at the operative end 13 of the tubular housing 12. This facilitates the control of power flow to the cutting tip 38 in a very convenient manner. By placing the micro-switch 46 at the operative end 13, the switch is positioned approximately in the region of the users thumb when the probe is held in a normal or ordinary manner. Consequently, the user can conveniently and quickly turn the power on and off by merely depressing or releasing the microswitch 46.
  • a supporting block comprisingportions 48a and 48b is provided interiorly of-the probe unit 10, the supporting block being provided with a suitableopening or slot for the insertion of the micro-switch 46.
  • any other suitable means for supporting the micro-switch 46 may be utilized.
  • the operative end of the probe unit is shown in an exploded view with the various components aligned for mutual connection.
  • the operative end of the tubular housing 12 is provided with a cylindrical shell 49 which has a somewhat reduced external diameter from the diameter of the tubular housing 12. 1
  • the connector element 20 Positioned interiorly of the cylindrical shell 49 is the connector element 20 which is conductive and preferably made from a metal such as copper. Extending beyond the main portion of the connector element 20 is a cylindrical projection 50. An axial bore 52 extends substantially through the entire connector 20, the diameter of the axial bore 52 being substantially equal to the outer diameter of the connector pin 30 so that engagement therebetween provides a good electrical connection.
  • the nose piece 24 has .a proximal end which has a substantially cylindrical exterior 60 which is hollow to provide a cylindrical recess or cavity 61.
  • the internal diameter of the recess 61 is substantially equal to the outer diameter of the cylindrical shell 49 so as to provide a press fit when the two are mated with one another.
  • the cylindrical shell 49 as well as the cylindrical recessed portion 61 can readily be made to have square or rectangular cross sections instead of being circular.
  • a probe tip 33 which includes a generally cylindrical hollow shell 34.
  • the sleeve 32 is selected to have a length sufficient to accommodate most of the axial length of the shell 34, as illustrated in FIG. 1.
  • the shell 34 has a flared resilient end 64 whose external dimensions are somewhat greater than the internal dimensions of the sleeve 32. However, because of the resilient nature of the end 64, the latter can be forced interiorly of the sleeve 32 while resiliently abutting thereagainst so as to enhance the fricational engagement therebetween and prevent the undesired outward movement of the probe tip 33 under normal conditions of ,use.
  • a narrowed end 66 is At the axial end remote from the flared resilient end 64, as best shown FIG. 5, to be described hereafter.
  • a modified nose piece 24 which has a different configuration from the conical nose piece illustrated in FIG. 2.
  • the nose piece 24' is similar to the nose piece 24.
  • the nose piece 24 as well as the probe tip 33' have been connected to each other as during normal use.
  • the cylindrical shell 49 is enclosed by rangement, at least one spring 28 is advantageously provided at the outer peripheral surface of the cylindrical shell 49 which is compressed into a biasing condition when the nose piece is mounted on the tubular housing 12.
  • the purpose of this spring 28 is to enhance axial bore 52, the pin 30 and the sleeve 32 are generally coaxial and aligned along the axis of symmetry of the tubular housing 12.
  • the distal end of the modified nose piece 24' is commonly designated'as having a contra-angled form wherein a substantially straight proximal section 72 is angularly disposed with respect to a substantially straight distal section 74.
  • a sleeve section 76 is disposed at the proximal section while a sleeve section 78 is disposed in the distal section 74, the sleeve sections 76, 78 being in electrical connection with one another. Since the sleeve section 76 is in electrical contact with the pin 30 of the male connector, electrical continuity is provided between the connector 20 and the sleeve section 78 via the connector 30 and the sleeve section 76.
  • the probe tip 33 is receivable in the sleeve section 78 in a similar manner as the probe tip is receivable in the conductive sleeve 32 of FIG. 1.
  • the cutting tip 38 is in electrical contact with the respective sleeves by virtue of a pressfit contact between the arcuate portions 36 and the sleeves, as will become apparent from a description of FIGS. 4-6.
  • the novel probe tip 33 in accordance with the present invention which is suitable for use with the probe unit, described above, generally comprises a shell 34 which. is essentially cylindrical. However, one end thereof, namely end 64, is flared and is resilient in nature by virtue of the provision of axial slots 80. Consequently, the flared resilient end 64 can be compressed when made from any suitable plastic material.
  • a single section of wire 37 is provided which has two ends 82 disposed interiorly of the shell 34.
  • the wire 37 is essentially doubled up whereby the two ends 82 are disposed interiorly of the shell 34 while a portion of the wire extends through the narrowed end 66 to form a substantially closed diamond-shaped loop 38, in the form of a cutting tip.
  • the portions of the wire 37 which are disposed interiorly of the shell 34 are provided with two spaced arcuate sections 36 each of which is directed in opposite directions and which extend through respective slots 35.
  • the two arcuate portions 36 together define a plane.
  • the wire portions which form transitions between the arcuate portions 36 and the cutting tip loop 38 diverge gradually from the plane of the arcuate sections 36 into a further plane defined by the loop 38, the plane and the loop being substantially normal to the plane of the arcuate portions 36.
  • the transition is substantially completed on the arcuate portion 36 side of the narrowed end 66, as best seen in FIG. 6.
  • the twisted configuration of the wire 37 prevents the wire from leaving the shell 34 even when the arcuate sections 36 are compressed therein. This result arises because the gradually divergent transition portions of the wire 37, even when the arcuate portions 36 are compressed, define distances greater than the height of the narrowed portion 66.
  • both the flared end 64 as well as the arcuate portions 36 resiliently apply outward forces against the internal surface of the sleeve.
  • the resilient biasing forces exerted thereby increase the frictional engagement between the probe tip 33 and the nose piece 24 or 24.
  • this also provides electrical contact between the wire 37 and the conductive sleeves.- In this manner, the high level high frequency voltages applied to the connector are transmitted to the cutting tip 38.
  • Another advantage of the subject invention is the provision in the nose piece of a conductive sleeve which is conflgurated to receive a dispensable probe tip 33.
  • the probe tips 33 are simple and economical to manufacture. Consequently, they can be made at low enough costs so as to makethe same dispensable. This obviates the need for treating tips subsequent to previous surgical procedures when they are needed. Of course, this also eliminates the possibility that an improperly treated cutting tip may cause infection in the treated patient. It is contemplated, for example, that each probe tip 33 be individually and sanitarily packaged whereby each probe tip is only utilized for one surgical operation.
  • the subject invention permits the relative rotation of the nose piece 24 or 24 with respect to the tubular housing 12.
  • a contraangled nose piece 24' is utilized, this facilitates orientation of a probe tip in a simple and efficient manner, even during an operative procedure. Since the pin 30 remains engaged with the connector 20 during such relative rotary motion, electrical continuity is assured even if relative rotation of the nose piece is effected while the voltages are applied.
  • the probe tip 33 can be rotated relative to the nose piece in which it is positioned.
  • the probe unit 10 in accordance with the present invention thereby economically facilitates convenient interchangeability as well as adjustment or orientation of the operative elements of the probe unit. Such versatility has not been provided in conventional probe units.
  • a probe unit for applying high level high frequency voltages to tissue to be treated, said probe unit comprising an elongate tubular handpiece having an operative end; a conductive connector element disposed at said operative end adapted to be connected to a source of high level high frequency voltage; an elongate nose piece having a proximal end and a distal end, said proximal end being provided with a portion generally having configuration complementary to said operative end and said connector element; electrical conductor means extending between said proximal and distal ends, said conductor means including a portion at said proximal end engageable with said connector element and a conductive sleeve portion at said distal end; and a probe tip comprising an elongate insulating cylindrical shell receivable in said sleeve portion, said shell having two opposing axial slots and a narrowed axial end, and a resilient wire forming a first portion extending beyond said narrowed axial end to form an external operating tip and
  • a probe tip insertable into a conductive sleeve of a probe unit utilized in conjunction with an electrosurgical device, said tip comprising an elongate insulating cylindrical shell receivable in said sleeve portion, said shell having two opposing axial slots and a narrowed axial end, and a resilient wire forming a first portion extending beyondsaid narrowed axial end to form an external operating tip and forming a second portion disposed inside said shell, said second portion being provided with two spaced opposing resilient arcuate portions passing through said respective slots and being depressible into said shell, whereby insertion of said shell into said sleeve portion depresses said arcuate portions to thereby provide frictional engagement and electrical contact between said wire and said sleeve portion.

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  • Health & Medical Sciences (AREA)
  • Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biomedical Technology (AREA)
  • Molecular Biology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Plasma & Fusion (AREA)
  • Physics & Mathematics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Otolaryngology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Surgical Instruments (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
US00340294A 1973-03-12 1973-03-12 Probe unit for electro-surgical device Expired - Lifetime US3807404A (en)

Priority Applications (11)

Application Number Priority Date Filing Date Title
US00340294A US3807404A (en) 1973-03-12 1973-03-12 Probe unit for electro-surgical device
CA190,553A CA1015404A (en) 1973-03-12 1974-01-21 Probe unit for electro-surgical device
GB420874A GB1430694A (en) 1973-03-12 1974-01-29 Probe units for electro-surgical devices
DE2404764A DE2404764A1 (de) 1973-03-12 1974-02-01 Sondeneinheit fuer elektro-medizinische einrichtungen
CH174974A CH570808A5 (fr) 1973-03-12 1974-02-08
SE7402170A SE396696B (sv) 1973-03-12 1974-02-19 Sond ingaende i en elektrokirurgisk anordning
DK130274AA DK142761B (da) 1973-03-12 1974-03-11 Elektromedicinsk apparat.
FR7408152A FR2221112B1 (fr) 1973-03-12 1974-03-11
JP49028998A JPS49126193A (fr) 1973-03-12 1974-03-12
IT49484/74A IT1015865B (it) 1973-03-12 1974-03-21 Complesso di sonda per dispositivo elettrochirurgico
JP1978106670U JPS5554487Y2 (fr) 1973-03-12 1978-08-04

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00340294A US3807404A (en) 1973-03-12 1973-03-12 Probe unit for electro-surgical device

Publications (1)

Publication Number Publication Date
US3807404A true US3807404A (en) 1974-04-30

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Application Number Title Priority Date Filing Date
US00340294A Expired - Lifetime US3807404A (en) 1973-03-12 1973-03-12 Probe unit for electro-surgical device

Country Status (10)

Country Link
US (1) US3807404A (fr)
JP (2) JPS49126193A (fr)
CA (1) CA1015404A (fr)
CH (1) CH570808A5 (fr)
DE (1) DE2404764A1 (fr)
DK (1) DK142761B (fr)
FR (1) FR2221112B1 (fr)
GB (1) GB1430694A (fr)
IT (1) IT1015865B (fr)
SE (1) SE396696B (fr)

Cited By (27)

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US3870047A (en) * 1973-11-12 1975-03-11 Dentsply Res & Dev Electrosurgical device
US4014343A (en) * 1975-04-25 1977-03-29 Neomed Incorporated Detachable chuck for electro-surgical instrument
US4034761A (en) * 1975-12-15 1977-07-12 The Birtcher Corporation Disposable electrosurgical switching assembly
US4112950A (en) * 1976-10-22 1978-09-12 Aspen Laboratories Medical electronic apparatus and components
US4593691A (en) * 1983-07-13 1986-06-10 Concept, Inc. Electrosurgery electrode
US4800878A (en) * 1987-08-26 1989-01-31 Becton, Dickinson And Company Electrosurgical knife with visual alarm
US4834095A (en) * 1988-02-16 1989-05-30 Ipco Corporation Probe unit for electro-surgical device
EP0419235A1 (fr) * 1989-09-19 1991-03-27 Rocket of London Limited Electrode en forme de boucle
US5267994A (en) * 1992-02-10 1993-12-07 Conmed Corporation Electrosurgical probe
US5282799A (en) * 1990-08-24 1994-02-01 Everest Medical Corporation Bipolar electrosurgical scalpel with paired loop electrodes
US5746746A (en) * 1996-08-30 1998-05-05 Garito; Jon C. Electrosurgical electrode and method for skin resurfacing
EP0891746A3 (fr) * 1997-07-16 1999-06-02 Gebr. Berchtold GmbH & Co. Instrument de chirurgie à courants de haute fréquence
US5989247A (en) * 1996-05-15 1999-11-23 Smith & Nephew Endoscopy Inc. Electro-surgical instrument with spline connection
EP0974307A1 (fr) * 1998-07-21 2000-01-26 Kaltenbach & Voigt Gmbh & Co. Electrode pour une pièce à main électrochirurgicale
US20110015645A1 (en) * 2009-07-15 2011-01-20 Greg Liu Tympanic membrane pressure equalization tube delivery system
EP2749312A3 (fr) * 2012-12-31 2014-11-26 Biosense Webster (Israel), Ltd. Connecteur de cathéter
US9539146B2 (en) 2009-07-15 2017-01-10 Tusker Medical, Inc. Trigger assembly for tympanostomy tube delivery device
US9681891B2 (en) 2013-03-14 2017-06-20 Tusker Medical, Inc. Tympanostomy tube delivery device with cutting dilator
US9707131B2 (en) 2007-04-19 2017-07-18 Tusker Medical, Inc. System and method for the simultaneous automated bilateral delivery of pressure equalization tubes
US9770366B2 (en) 2009-07-15 2017-09-26 Tusker Medical, Inc. Tympanic membrane pressure equalization tube delivery system
US9833359B2 (en) 2014-08-12 2017-12-05 Tusker Medical, Inc. Tympanostomy tube delivery device with cutter force clutch
US9833360B2 (en) 2014-08-12 2017-12-05 Tusker Medical, Inc. Tympanostomy tube delivery device with replaceable shaft portion
US10130515B2 (en) 2001-04-26 2018-11-20 Tusker Medical, Inc. Mechanically registered videoscopic myringotomy/tympanostomy tube placement system
US10195086B2 (en) 2014-08-11 2019-02-05 Tusker Medical, Inc. Tympanostomy tube delivery device with rotatable
US10219950B2 (en) 2013-03-14 2019-03-05 Tusker Medical, Inc. Features to improve and sense tympanic membrane apposition by tympanostomy tube delivery instrument
US10765560B2 (en) 2014-08-08 2020-09-08 Tusker Medical, Inc. Tympanostomy tube delivery device with elastomeric brake
WO2022081959A1 (fr) * 2020-10-16 2022-04-21 Covidien Lp Instrument électrochirurgical doté d'une électrode réutilisable

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2136296B (en) * 1983-03-15 1987-06-17 Sylvia Lewis Depilation needle or probe
JPS6462151A (en) * 1987-09-02 1989-03-08 G C Dental Ind Corp Dental handpiece
US5846237A (en) * 1994-11-18 1998-12-08 Megadyne Medical Products, Inc. Insulated implement
US5531743A (en) * 1994-11-18 1996-07-02 Megadyne Medical Products, Inc. Resposable electrode
US5885280A (en) * 1995-11-08 1999-03-23 Megadyne Medical Products, Inc. Electrosurgical electrode connector
US6090107A (en) * 1998-10-20 2000-07-18 Megadyne Medical Products, Inc. Resposable electrosurgical instrument
DE102007053336A1 (de) * 2007-11-08 2009-05-20 Erbe Elektromedizin Gmbh Signaleinrichtung für elektrochirurgische Instrumente, Adapter zum Anschluss eines elektrochirurgischen Instruments

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US3870047A (en) * 1973-11-12 1975-03-11 Dentsply Res & Dev Electrosurgical device
US4014343A (en) * 1975-04-25 1977-03-29 Neomed Incorporated Detachable chuck for electro-surgical instrument
US4034761A (en) * 1975-12-15 1977-07-12 The Birtcher Corporation Disposable electrosurgical switching assembly
US4112950A (en) * 1976-10-22 1978-09-12 Aspen Laboratories Medical electronic apparatus and components
US4593691A (en) * 1983-07-13 1986-06-10 Concept, Inc. Electrosurgery electrode
US4800878A (en) * 1987-08-26 1989-01-31 Becton, Dickinson And Company Electrosurgical knife with visual alarm
US4834095A (en) * 1988-02-16 1989-05-30 Ipco Corporation Probe unit for electro-surgical device
EP0419235A1 (fr) * 1989-09-19 1991-03-27 Rocket of London Limited Electrode en forme de boucle
US5282799A (en) * 1990-08-24 1994-02-01 Everest Medical Corporation Bipolar electrosurgical scalpel with paired loop electrodes
US5267994A (en) * 1992-02-10 1993-12-07 Conmed Corporation Electrosurgical probe
US5989247A (en) * 1996-05-15 1999-11-23 Smith & Nephew Endoscopy Inc. Electro-surgical instrument with spline connection
US5746746A (en) * 1996-08-30 1998-05-05 Garito; Jon C. Electrosurgical electrode and method for skin resurfacing
EP0891746A3 (fr) * 1997-07-16 1999-06-02 Gebr. Berchtold GmbH & Co. Instrument de chirurgie à courants de haute fréquence
EP0974307A1 (fr) * 1998-07-21 2000-01-26 Kaltenbach & Voigt Gmbh & Co. Electrode pour une pièce à main électrochirurgicale
US10130515B2 (en) 2001-04-26 2018-11-20 Tusker Medical, Inc. Mechanically registered videoscopic myringotomy/tympanostomy tube placement system
US10258776B2 (en) 2007-04-19 2019-04-16 Tusker Medical, Inc. System and method for treatment of target tissues within the ears
US9707131B2 (en) 2007-04-19 2017-07-18 Tusker Medical, Inc. System and method for the simultaneous automated bilateral delivery of pressure equalization tubes
US9833601B2 (en) 2007-04-19 2017-12-05 Tusker Medical, Inc. System and method for the simultaneous bilateral treatment of target tissues within the ears using a guide block structure
US10632017B2 (en) 2009-07-15 2020-04-28 Tusker Medical, Inc. Trigger assembly for tympanostomy tube delivery device
US9539146B2 (en) 2009-07-15 2017-01-10 Tusker Medical, Inc. Trigger assembly for tympanostomy tube delivery device
US10610412B2 (en) 2009-07-15 2020-04-07 Tusker Medical, Inc. Tympanic membrane pressure equalization tube delivery system
US9770366B2 (en) 2009-07-15 2017-09-26 Tusker Medical, Inc. Tympanic membrane pressure equalization tube delivery system
US20110015645A1 (en) * 2009-07-15 2011-01-20 Greg Liu Tympanic membrane pressure equalization tube delivery system
US8864774B2 (en) * 2009-07-15 2014-10-21 Acclarent, Inc. Tympanic membrane pressure equalization tube delivery system
EP2749312A3 (fr) * 2012-12-31 2014-11-26 Biosense Webster (Israel), Ltd. Connecteur de cathéter
US10653446B2 (en) 2013-03-14 2020-05-19 Tusker Medical, Inc. Tympanostomy tube delivery device with cutting dilator
US10219950B2 (en) 2013-03-14 2019-03-05 Tusker Medical, Inc. Features to improve and sense tympanic membrane apposition by tympanostomy tube delivery instrument
US9681891B2 (en) 2013-03-14 2017-06-20 Tusker Medical, Inc. Tympanostomy tube delivery device with cutting dilator
US10765560B2 (en) 2014-08-08 2020-09-08 Tusker Medical, Inc. Tympanostomy tube delivery device with elastomeric brake
US10966866B2 (en) 2014-08-11 2021-04-06 Tusker Medical, Inc. Tympanostomy tube delivery device with rotatable flexible shaft
US10195086B2 (en) 2014-08-11 2019-02-05 Tusker Medical, Inc. Tympanostomy tube delivery device with rotatable
US9833359B2 (en) 2014-08-12 2017-12-05 Tusker Medical, Inc. Tympanostomy tube delivery device with cutter force clutch
US10736785B2 (en) 2014-08-12 2020-08-11 Tusker Medical, Inc. Tympanostomy tube delivery device with cutter force clutch
US10653561B2 (en) 2014-08-12 2020-05-19 Tusker Medical, Inc. Tympanostomy tube delivery device with replaceable shaft portion
US9833360B2 (en) 2014-08-12 2017-12-05 Tusker Medical, Inc. Tympanostomy tube delivery device with replaceable shaft portion
WO2022081959A1 (fr) * 2020-10-16 2022-04-21 Covidien Lp Instrument électrochirurgical doté d'une électrode réutilisable

Also Published As

Publication number Publication date
DK142761C (fr) 1981-08-17
FR2221112B1 (fr) 1978-11-10
CH570808A5 (fr) 1975-12-31
JPS5554487Y2 (fr) 1980-12-17
JPS5446189U (fr) 1979-03-30
GB1430694A (en) 1976-03-31
CA1015404A (en) 1977-08-09
JPS49126193A (fr) 1974-12-03
DK142761B (da) 1981-01-19
SE396696B (sv) 1977-10-03
IT1015865B (it) 1977-05-20
FR2221112A1 (fr) 1974-10-11
DE2404764A1 (de) 1974-09-19

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