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US3902494A - Suction surgical instrument - Google Patents

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US3902494A
US3902494A US465583A US46558374A US3902494A US 3902494 A US3902494 A US 3902494A US 465583 A US465583 A US 465583A US 46558374 A US46558374 A US 46558374A US 3902494 A US3902494 A US 3902494A
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suction
shaft
electric lead
suction shaft
surgical instrument
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US465583A
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Roland Haberlen
Theodor Schwarz
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    • 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
    • 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
    • A61B18/1402—Probes for open surgery
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S604/00—Surgery
    • Y10S604/902—Suction wands

Definitions

  • ABSTRACT A suction surgical instrument combining the functions of removing liquids and/or tissue from the operation area and of coagulating tissue.
  • a suction shaft of an electrically insulating material and modifications of a coagulating electrode positioned at the suction port prevent traditional clogging of the suction shaft. Insulation and position of the electric lead aid in increasing the stiffness of the suction shaft.
  • the present invention relates to a suction surgical instrument for drawing off liquids and/or tissue particles from the operation area, in particular a suction device with a hollow suction shaft having at its free end a suction port and at its other end connection socket for attaching a suction tube.
  • suction surgical instruments employ tubular suction shafts of metal, preferably of stainless steel or of a nickel-plated or chromiumplated brass.
  • the electrical conductivity of the prior art suction shafts serves to connect the suction shaft to a source of high frequency current for the purpose of coagulating the tissue, preferably, the blood vessels in the area of surgery.
  • tissue is coagulated not only at the desired spot in the operation area, but that the tissue particles sucked up by the suction shaft coagulate within said shaft, thereby causing the suction shaft to become clogged very quickly.
  • the preferred embodiment of the present invention solves this problem inherent in suction surgical instruments of the type referred to in the beginning, by a suction shaft of an electrically insulating material with its suction port provided with a coagulating electrode, said electrode attached to an electric lead that can be connected to a source of high frequency current.
  • a suction shaft of an electrically insulating material with its suction port provided with a coagulating electrode, said electrode attached to an electric lead that can be connected to a source of high frequency current.
  • the electrode By shaping the electrode correspondingly, it is possible in addition to avoid with certainty clogging of the suction port by the tissue coagulated at the tip of the coagulating electrode. Furthermore. the coagulating electrode located outside of the suction shaft can readily be cleaned at any time, for example, by the operating nurse also during a surgical procedure, e.g., by the use of a correspondingly formed instrument.
  • the electric lead can be attached to the electrode in any arbitrary manner, c.g., as a trailing, preferably insulated. wire joined to the electrode.
  • the electric lead of one preferred embodiment of the invention runs in a longitudinal direction to the suction shaft and is preferably insulated.
  • the electric lead it is possible for the electric lead to have a profile increasing its bending resistance. and to be preferably connected mechanically to the suction shaft, so that the electric lead contributes to increasing the stiffness of the suction shaft, thereby forming a metallic reinforcement for the suction shaft.
  • an insulating tube may be used to enclose the suction shaft and the electric lead. Thereby, a mechanical connection is established at the same time between the suction shaft and the electric lead.
  • a further preferred embodiment of the invention has the suction port of the suction shaft constricted by the coagulating electrode.
  • Such constriction may take various forms, e.g., the internal diameter of a ring-shaped electrode is smaller than the internal diameter of the suction shaft, or in the case of a differently shaped electrode, the latter extends a bit beyond the suction port, thereby reducing the diameter of the suction port.
  • Constricting the suction port of a suction shaft in this way causes only such tissue particles to be drawn off by the shaft, which are smaller than the internal diameter of the suction shaft, so that unobjectionable removal of these particles through the shaft is ensured, and clogging of the suction shaft by particles drawn in that are too large. is avoided with certainty.
  • This procedure to prevent clogging of a suction shaft can also be employed to advantage with conventional surgical suction devices having the entire suction shaft of metal.
  • the suction shaft of the suction device of the present invention may be any arbitrary material that is electrically insulating.
  • One preferred embodiment employs polytetrafluoroethylene as the electrically insulating material. Tetrafluoroethylene has the advantage that practically no particles adhere to it, so that the problem basic to the invention, namely to prevent clogging of the suction shaft by the tissue particles drawn into it, is solved especially well.
  • FIG. I is a partial cross section and partial elevation of a first embodiment
  • FIG. 2 is an end-on view of the suction port of the suction surgical instrument of FIG. 1;
  • FIG. 3 is a cross section along the line III III of FIG. 1;
  • FIG. 4 is a perspective view of the coagulating electrode of the embodiment shown in FIGS. 1 3;
  • FIGS. 5 and 6 are illustrations corresponding to FIG. 4 showing two different variations of the coagulating electrode
  • FIG. 7 is a view of the suction port ofa suction instrument with a coagulating electrode as illustrated in FIG.
  • FIG. 8 is a cross section of the suction instrument shown in FIGS. 6 and 7.
  • FIGS. I 4 a surgical instrument for drawing off liquids and/or tissue particles from a surgical operating area, as represented in FIGS. I 4, comprising a suction shaft 10 of tetrafluoroethylene, provided at its free end with suction port II and connected at its other end to handle 12 forming a connection socket I3 to attach a suction tube not illustrated in the drawing, which tube serves to join in conventional fashion suction shaft with a vacuum source, also not illustrated.
  • Handle 12 is provided at its end opposite connection socket 13 with a bore 14 forming a seat for the end of suction shaft 10 opposite suction port 11.
  • Bore 14 extends into a channel 15 connecting the hollow passage of the suction shaft 10 with the hollow passage of connection socket 13.
  • a ventilating opening 16 terminates in channel 15, which opening may be closed with the thumb of the hand holding handle 12, when drawing off liquids and/0r tissue particles from the operation area.
  • Handle 12 consists of a comparatively stiff insulating material, preferably a plastic.
  • Electric lead 17 butts against suction shaft 10, which lead extends longitudinally the entire length of suction shaft 10 and along a portion of handle 12.
  • This electric lead is a round rod provided in the region in which it butts against suction shaft 10 and handle 12, with a milled groove 18, which is shaped corresponding to the circumference of suction shaft 10 and of handle 12, for the purpose of fitting it thereto.
  • the remaining part 19 of the rod-shaped electric lead 17 extends away from handle 12 at an angle and is shaped as a plug 24 for the purpose of joining electric lead 17 with a source of high frequency current.
  • suction port 11 The end of electric lead 17 near suction port 11 is connected, i.e., welded, to a ring-shaped coagulating electrode 21 encompassing suction port 11.
  • a ring-shaped coagulating electrode 21 encompassing suction port 11.
  • the internal opening of the coagulating electrode 21, which at the same time forms the actual suction port 11 has a somewhat smaller diameter than the internal opening of suction shaft 10.
  • Coagulating electrode 21 consists of a material which is thermally and electrically more conductive than stainless chromium alloy steel, e g., of silver or of an alloy of silver-gold, silver-copper, silver-paladium, silvercadmium, silver-cadmiumoxide, silver-nickel, c0pper beryllium, or something similar, and for the purpose of increasing its heating capacity, it extends a bit along suction shaft 10 as part 22.
  • insulating tube 23 is provided, encompassing suction shaft 10 and electric lead 17 and holding the two together mechanically.
  • the portion of electric lead 17 extending partly the length of handle 12 and away from the latter, is provided with additional insulation, so that not insulated is only part 19 of electric lead 17 opposite handle 12 forming connecting plug 24.
  • the sickle-shaped profile of electric lead 17 of the part butting against suction shaft 10, provides the electric lead with comparative stiffness. Because electric lead 17 and suction shaft 10 are firmly held together mechanically by insulating tube 23, the comparatively soft suction shaft 10 receives the stiffness necessary for its use. Since the internal opening of the circular coagulating electrode 21 is smaller than the internal opening of suction shaft 10, only such tissue particles can get into suction shaft 10 having outer dimensions smaller than the diameter of the suction shaft, so that these tissue particles can easily be drawn off through suction shaft 10 without leading to clogging, which is additionally aided by the property of the polytetrafluoroethylene forming suction shaft 10, to which tissue particles cannot adhere.
  • the coagulating electrode 21 Consists of a material which is thermally and electrically very conductive
  • the heat formed during coagulation is quickly dissipated and heating of the coagulating electrode by the coagulating current is avoided, so that said electrode is not overheated and thus tissue particles do not stick to the coagulating electrode, which is aided by the piece 22 increasing the heating capacity of the coagulating electrode 21. Should coagulated tissue nevertheless adhere to the opening of the coagulating electrode 21 and clog said opening, then it can very easily be freed from the outside even during the surgical procedure.
  • FIG. 5 comprises a coagulating electrode 121 which encompass suction port 111 only partly, which may be of advantage for certain types of applications. But even here the coagulating electrode 121 extends beyond suction port 111 to constrict the internal opening of suction shaft 10, in order to prevent tissue particles that might lead to a clogged shaft from becoming sucked in.
  • FIGS. 6 8 shows the coagulating electrode 221 formed merely by a flap extending into suction port 211.
  • electric lead 217 as well as the extending electrode part 222 welded to the end of electric lead 217, are groove shaped, so that they butt against suction shaft 10 at its inner side, and as a result of the groove-shaped curvature provide a profile of increased stiffness.
  • One embodiment not illustrated in the drawings has the electric lead shaped as a tube encompassing suction shaft 10, which also achieves the desired increase in stiffness of suction shaft 10.
  • the electric lead shaped as a tube encompassing suction shaft 10, which also achieves the desired increase in stiffness of suction shaft 10.
  • the necessary stiffness of the suction shaft can also be achieved by a corresponding selection of the material, or by shaping of the same, e.g., by molded longitudinal ribs, or something similar, so that one can dispense with the effect of increasing the stiffness achieved through the electric lead and can attach the latter loosely to the coagulating electrode, for example, as an insulated wire.
  • a surgical instrument comprising:
  • a tubelike suction shaft comprising an electrical insulating material forming a wall which surrounds a suction channel, said suction shaft having at its first end a connection socket for attachment to a source of suction for removing liquids and/or tissue from a surgical operation area, the second shaft end being opened to form a suction port the size of which is co-extensive with the internal opening of said second shaft end, electrode means positioned out of said channel and connected to said shaft wall and extending from the outside across a portion of said suction port and constricting said suction port. and an insulated electric lead for supplying high frequency current operably connected with said electrode means, said electric lead being positioned out of said channel and disposed lengthwise of and connected to said shaft wall.
  • a surgical instrument wherein the insulation for said electric lead is provided by an insulating tube enclosing both said electric lead and suction shaft.

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Abstract

A suction surgical instrument combining the functions of removing liquids and/or tissue from the operation area and of coagulating tissue. A suction shaft of an electrically insulating material and modifications of a coagulating electrode positioned at the suction port prevent traditional clogging of the suction shaft. Insulation and position of the electric lead aid in increasing the stiffness of the suction shaft.

Description

nite States atent 1191 Haberlen et a1.
1451 Sept. 2, 1975 1 SUCTION SURGICAL INSTRUMENT [75] Inventors: Roland Haberlen, Tuttlingen;
Theodor Schwarz, Nendingen, Germany [73] Assignee'. Scheerer, Tuttlingen, Germany [22] Filed: Apr. 30, 1974 [21] Appl. No.: 465,583
[30] Foreign Application Priority Data May 15, 1973 Germany 2324415 52 US. Cl. 1213/2751; 128/303.l7; 174/47 51 111M31 ..A61M1/00;A61B17/4O 58 Field of Search 1212/2751, 303.1, 303.13, 1213/30314, 303.17, 303.18, 303.19, 276,
172.1, 407409, 417, DIG. 14; 174/47 [56] References Cited UNITED STATES PATENTS 2,275,167 3/1942 Bierman l28/303.17 2,808,833 10/1957 August l28/303.l7
2,814,296 11/1957 Everett 128/D1G. 4 2,888,928 6/1959 Seiger 128/303.17 3,324,225 6/1967 Thostrup 174/47 3,41 1,507 11/1968 Wingrove 128/407 3,680,544 8/1972 Shinnick 128/172.1 3,685,518 8/1972 Beuerle 6t 31.. 128/303.17
3,825,004 7/1974 Durden 128/275.1 3,828,780 8/1974 Morrison, Jr. 128/275.l
FOREIGN PATENTS OR APPLICATIONS 1,007,960 5/1957 Germany 128/303.l7 1,465,581 11/1965 France.... 128/303118 745,959 11/1932 France 128/409 Primary ExaminerRichard A. Gaudet Assistant ExaminerLee S. Cohen Attorney, Agent, or Firm-Eugene J. Kalil; James M. Rhodes, Jr.
[5 7] ABSTRACT A suction surgical instrument combining the functions of removing liquids and/or tissue from the operation area and of coagulating tissue. A suction shaft of an electrically insulating material and modifications of a coagulating electrode positioned at the suction port prevent traditional clogging of the suction shaft. Insulation and position of the electric lead aid in increasing the stiffness of the suction shaft.
7 Claims, 8 Drawing Figures SUCTION SURGICAL INSTRUMENT BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a suction surgical instrument for drawing off liquids and/or tissue particles from the operation area, in particular a suction device with a hollow suction shaft having at its free end a suction port and at its other end connection socket for attaching a suction tube.
2. Description of the Prior Art Conventional suction surgical instruments employ tubular suction shafts of metal, preferably of stainless steel or of a nickel-plated or chromiumplated brass. Frequently. the electrical conductivity of the prior art suction shafts serves to connect the suction shaft to a source of high frequency current for the purpose of coagulating the tissue, preferably, the blood vessels in the area of surgery. However, this has the disadvantage that tissue is coagulated not only at the desired spot in the operation area, but that the tissue particles sucked up by the suction shaft coagulate within said shaft, thereby causing the suction shaft to become clogged very quickly.
It is the purpose of the present invention to obviate the aforementioned difficulties by providing a suction surgical instrument with a suction shaft which will not become clogged by the coagulation of tissue particles when the suction device is employed as a coagulating instrument.
SUMMARY The preferred embodiment of the present invention solves this problem inherent in suction surgical instruments of the type referred to in the beginning, by a suction shaft of an electrically insulating material with its suction port provided with a coagulating electrode, said electrode attached to an electric lead that can be connected to a source of high frequency current. This prevents coagulation from ocurring within the hollow portion of the suction shaft, so that the suction shaft cannot become clogged thereby. Should over-heating of the coagulating electrode cause clotted material to settle thereon during the coagulating process, then this material can be removed easily, since the coagulating electrode is located outside the suction shaft. By shaping the electrode correspondingly, it is possible in addition to avoid with certainty clogging of the suction port by the tissue coagulated at the tip of the coagulating electrode. Furthermore. the coagulating electrode located outside of the suction shaft can readily be cleaned at any time, for example, by the operating nurse also during a surgical procedure, e.g., by the use of a correspondingly formed instrument.
The electric lead can be attached to the electrode in any arbitrary manner, c.g., as a trailing, preferably insulated. wire joined to the electrode.
The electric lead of one preferred embodiment of the invention runs in a longitudinal direction to the suction shaft and is preferably insulated. Thereby for one preferred embodiment of the invention, it is possible for the electric lead to have a profile increasing its bending resistance. and to be preferably connected mechanically to the suction shaft, so that the electric lead contributes to increasing the stiffness of the suction shaft, thereby forming a metallic reinforcement for the suction shaft.
In order to insulate the electric lead positioned on the outside adjacent to the suction shaft, an insulating tube may be used to enclose the suction shaft and the electric lead. Thereby, a mechanical connection is established at the same time between the suction shaft and the electric lead.
A further preferred embodiment of the invention has the suction port of the suction shaft constricted by the coagulating electrode. Such constriction may take various forms, e.g., the internal diameter of a ring-shaped electrode is smaller than the internal diameter of the suction shaft, or in the case of a differently shaped electrode, the latter extends a bit beyond the suction port, thereby reducing the diameter of the suction port. Constricting the suction port of a suction shaft in this way, causes only such tissue particles to be drawn off by the shaft, which are smaller than the internal diameter of the suction shaft, so that unobjectionable removal of these particles through the shaft is ensured, and clogging of the suction shaft by particles drawn in that are too large. is avoided with certainty. This procedure to prevent clogging of a suction shaft can also be employed to advantage with conventional surgical suction devices having the entire suction shaft of metal.
The suction shaft of the suction device of the present invention may be any arbitrary material that is electrically insulating. One preferred embodiment employs polytetrafluoroethylene as the electrically insulating material. Tetrafluoroethylene has the advantage that practically no particles adhere to it, so that the problem basic to the invention, namely to prevent clogging of the suction shaft by the tissue particles drawn into it, is solved especially well.
DESCRIPTION OF THE DRAWINGS The description refers to the accompanying drawings, in which like reference characters refer to like parts throughout the several views illustrating examples of the suction surgical instruments of the present invention, and in which:
FIG. I is a partial cross section and partial elevation of a first embodiment;
FIG. 2 is an end-on view of the suction port of the suction surgical instrument of FIG. 1;
FIG. 3 is a cross section along the line III III of FIG. 1;
FIG. 4 is a perspective view of the coagulating electrode of the embodiment shown in FIGS. 1 3;
FIGS. 5 and 6 are illustrations corresponding to FIG. 4 showing two different variations of the coagulating electrode;
FIG. 7 is a view of the suction port ofa suction instrument with a coagulating electrode as illustrated in FIG.
FIG. 8 is a cross section of the suction instrument shown in FIGS. 6 and 7.
DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring now to the drawings, the invention is described with reference to a surgical instrument for drawing off liquids and/or tissue particles from a surgical operating area, as represented in FIGS. I 4, comprising a suction shaft 10 of tetrafluoroethylene, provided at its free end with suction port II and connected at its other end to handle 12 forming a connection socket I3 to attach a suction tube not illustrated in the drawing, which tube serves to join in conventional fashion suction shaft with a vacuum source, also not illustrated. Handle 12 is provided at its end opposite connection socket 13 with a bore 14 forming a seat for the end of suction shaft 10 opposite suction port 11. Bore 14 extends into a channel 15 connecting the hollow passage of the suction shaft 10 with the hollow passage of connection socket 13. A ventilating opening 16 terminates in channel 15, which opening may be closed with the thumb of the hand holding handle 12, when drawing off liquids and/0r tissue particles from the operation area. Handle 12 consists of a comparatively stiff insulating material, preferably a plastic.
Electric lead 17 butts against suction shaft 10, which lead extends longitudinally the entire length of suction shaft 10 and along a portion of handle 12. This electric lead is a round rod provided in the region in which it butts against suction shaft 10 and handle 12, with a milled groove 18, which is shaped corresponding to the circumference of suction shaft 10 and of handle 12, for the purpose of fitting it thereto.
The remaining part 19 of the rod-shaped electric lead 17 extends away from handle 12 at an angle and is shaped as a plug 24 for the purpose of joining electric lead 17 with a source of high frequency current.
The end of electric lead 17 near suction port 11 is connected, i.e., welded, to a ring-shaped coagulating electrode 21 encompassing suction port 11. As is apparent from FIG. 2, the internal opening of the coagulating electrode 21, which at the same time forms the actual suction port 11, has a somewhat smaller diameter than the internal opening of suction shaft 10. Coagulating electrode 21 consists of a material which is thermally and electrically more conductive than stainless chromium alloy steel, e g., of silver or of an alloy of silver-gold, silver-copper, silver-paladium, silvercadmium, silver-cadmiumoxide, silver-nickel, c0pper beryllium, or something similar, and for the purpose of increasing its heating capacity, it extends a bit along suction shaft 10 as part 22.
For the purpose of insulating electric lead 17 on the outside, which lead extends lengthwise of suction shaft 10, insulating tube 23 is provided, encompassing suction shaft 10 and electric lead 17 and holding the two together mechanically. The portion of electric lead 17 extending partly the length of handle 12 and away from the latter, is provided with additional insulation, so that not insulated is only part 19 of electric lead 17 opposite handle 12 forming connecting plug 24.
The sickle-shaped profile of electric lead 17 of the part butting against suction shaft 10, provides the electric lead with comparative stiffness. Because electric lead 17 and suction shaft 10 are firmly held together mechanically by insulating tube 23, the comparatively soft suction shaft 10 receives the stiffness necessary for its use. Since the internal opening of the circular coagulating electrode 21 is smaller than the internal opening of suction shaft 10, only such tissue particles can get into suction shaft 10 having outer dimensions smaller than the diameter of the suction shaft, so that these tissue particles can easily be drawn off through suction shaft 10 without leading to clogging, which is additionally aided by the property of the polytetrafluoroethylene forming suction shaft 10, to which tissue particles cannot adhere.
Since the coagulating electrode 21 Consists of a material which is thermally and electrically very conductive,
the heat formed during coagulation is quickly dissipated and heating of the coagulating electrode by the coagulating current is avoided, so that said electrode is not overheated and thus tissue particles do not stick to the coagulating electrode, which is aided by the piece 22 increasing the heating capacity of the coagulating electrode 21. Should coagulated tissue nevertheless adhere to the opening of the coagulating electrode 21 and clog said opening, then it can very easily be freed from the outside even during the surgical procedure.
The embodiment of the invention illustrated in FIG. 5 comprises a coagulating electrode 121 which encompass suction port 111 only partly, which may be of advantage for certain types of applications. But even here the coagulating electrode 121 extends beyond suction port 111 to constrict the internal opening of suction shaft 10, in order to prevent tissue particles that might lead to a clogged shaft from becoming sucked in.
The embodiment of the invention illustrated in FIGS. 6 8 shows the coagulating electrode 221 formed merely by a flap extending into suction port 211. For this embodiment, electric lead 217 as well as the extending electrode part 222 welded to the end of electric lead 217, are groove shaped, so that they butt against suction shaft 10 at its inner side, and as a result of the groove-shaped curvature provide a profile of increased stiffness.
One embodiment not illustrated in the drawings has the electric lead shaped as a tube encompassing suction shaft 10, which also achieves the desired increase in stiffness of suction shaft 10. For this embodiment, it is not necessary to provide an insulating tube encompassing the tubular electric lead for the purpose of insulation. It suffices, if the outer surface of the tubular electric lead is provided with an insulating layer.
However, it is also possible to provide the electric lead with any other arbitrary profile, which ensures that the lead has the necessary bending resistance to increase the stiffness of suction shaft 10 to correspond to the respective requirements.
The necessary stiffness of the suction shaft, however, can also be achieved by a corresponding selection of the material, or by shaping of the same, e.g., by molded longitudinal ribs, or something similar, so that one can dispense with the effect of increasing the stiffness achieved through the electric lead and can attach the latter loosely to the coagulating electrode, for example, as an insulated wire.
Although our invention has been illustrated and described with reference to the preferred embodiment thereof, we wish to have it understood that it is in no way limited to the details of such embodiments, but is capable of numerous modifications within the scope of the appended claims.
Having thus fully disclosed our invention, what we claim is:
1. A surgical instrument comprising:
a tubelike suction shaft comprising an electrical insulating material forming a wall which surrounds a suction channel, said suction shaft having at its first end a connection socket for attachment to a source of suction for removing liquids and/or tissue from a surgical operation area, the second shaft end being opened to form a suction port the size of which is co-extensive with the internal opening of said second shaft end, electrode means positioned out of said channel and connected to said shaft wall and extending from the outside across a portion of said suction port and constricting said suction port. and an insulated electric lead for supplying high frequency current operably connected with said electrode means, said electric lead being positioned out of said channel and disposed lengthwise of and connected to said shaft wall.
2. An instrument according to claim 1, wherein said electric lead is formed with means for increasing its bending resistance.
3. A surgical instrument according to claim 1, wherein the insulation for said electric lead is provided by an insulating tube enclosing both said electric lead and suction shaft.
4. A surgical instrument as defined in claim 1, wherein said electric lead comprises a round bar proincrease the heating capacity of said electrode.
ll k I" UNIIEI) sTATEs IA'IEN'I OFFICE CERTIFICATE OF CORRECTION Patent No. 3,902,494 Dated September 2, 1975 Inventor) Roland Haberlen & Theodor Schwarz It is certified that error appears in the above-identified patent and that said Letters Patent are hereby corrected as shown below:
Change the Assignee from "Scheerer, Tuttlingen, Germany" to --AESCULAPWERKE AG. vormals Jetter & Scheerer,
7200 Tuttlingen, Baden-Wurttemberg, Bundesrepublik Deutschland Change inventor s name "Roland Haberlen" to ---Roland Haberlen Signed and Scaled this tenth Day of February 1976 [SEAL] Attest.
RUTH C. MASON C. MARSHALL DANN Arresting Officer Commissioner ufPalents and Trademarks UNITED STATES PA'IENI OFFICE CERTIFKCATE OF CORRECTION Patent No. 3,902,494 Dated September 2, 1975 Inventor) Roland Haberlen & Theodor Schwarz It is certified that error appears in the above-identified patent and that said Letters Patent are hereby corrected as shown below:
Change the Assignee from "Scheerer, Tuttlingen, Germany" to -AESCULAPWERKE AG. vormals Jetter & Scheerer,
7200 Tuttlingen, Baden-Wurttemberg, Bundesrepublik Deutschland-- Change inventor s name "Roland 'Haberlen" to -Roland H'aberlen- Signed and Scaled this tenth Day of February 1976 [SEAL] Arrest:
RUTH C. MASON C. MARSHALL DANN Arresting Officer Commissioner uj'latents and Trademarks

Claims (7)

1. A surgical instrument comprising: a tubelike suction shaft comprising an electrical insulating material forming a wall which surrounds a suction channel, said suction shaft having at its first end a connection socket for attachment to a source of suction for removing liquids and/or tissue from a surgical operation area, the second shaft end being opened to form a suction port the size of which is coextensive with the internal opening of said second shaft end, electrode means positioned out of said channel and connected to said shaft wall and extending from the outside across a portion of said suction port and constricting said suction port, and an insulated electric lead for supplying high frequency current operably connected with said electrode means, said electric lead being positioned out of said channel and disposed lengthwise of and connected to said shaft wall.
2. An instrument according to claim 1, wherein said electric lead is formed with means for increasing its bending resistance.
3. A surgical instrument according to claim 1, wherein the insulation for said electric lead is provided by an insulating tube enclosing both said electric lead and suction shaft.
4. A surgical instrument as defined in claim 1, wherein said electric lead comprises a round bar provided with a milled groove shaped to the circumference of said suction shaft and fitting thereon.
5. An instrument as defined in claim 1, wherein said electric lead is embedded in the outer surface of said suction shaft to provide for the electrical insulation of said lead.
6. A surgical instrument according to claim 1, wherein said suction shaft consists of polytetrafluoroethylene.
7. An instrument according to claim 1, wherein said coagulating electrode comprises a material thermally and electrically more conductive than stainless steel and extends into the insulation of said electric lead to increase the heating capacity of said electrode.
US465583A 1973-05-15 1974-04-30 Suction surgical instrument Expired - Lifetime US3902494A (en)

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Cited By (80)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4074718A (en) * 1976-03-17 1978-02-21 Valleylab, Inc. Electrosurgical instrument
US4202336A (en) * 1976-05-14 1980-05-13 Erbe Elektromedizin Kg Cauterizing probes for cryosurgery
WO1981003271A1 (en) * 1980-05-13 1981-11-26 American Hospital Supply Corp A multipolar electrosurgical device
US4347842A (en) * 1980-02-15 1982-09-07 Mark Beale Disposable electrical surgical suction tube and instrument
US4492231A (en) * 1982-09-17 1985-01-08 Auth David C Non-sticking electrocautery system and forceps
US4568332A (en) * 1983-11-08 1986-02-04 Shippert Ronald D Medical instrument for suction lipectomy
US4919129A (en) * 1987-11-30 1990-04-24 Celebration Medical Products, Inc. Extendable electrocautery surgery apparatus and method
US5052999A (en) * 1990-01-29 1991-10-01 Klein Jeffrey A Liposuction method and apparatus
US5133714A (en) * 1991-05-06 1992-07-28 Kirwan Surgical Products, Inc. Electrosurgical suction coagulator
US5192267A (en) * 1989-01-23 1993-03-09 Nadiv Shapira Vortex smoke remover for electrosurgical devices
US5234428A (en) * 1991-06-11 1993-08-10 Kaufman David I Disposable electrocautery/cutting instrument with integral continuous smoke evacuation
US5256138A (en) * 1990-10-04 1993-10-26 The Birtcher Corporation Electrosurgical handpiece incorporating blade and conductive gas functionality
US5314406A (en) * 1992-10-09 1994-05-24 Symbiosis Corporation Endoscopic electrosurgical suction-irrigation instrument
US5376089A (en) * 1993-08-02 1994-12-27 Conmed Corporation Electrosurgical instrument
US5441503A (en) * 1988-09-24 1995-08-15 Considine; John Apparatus for removing tumors from hollow organs of the body
US5449356A (en) * 1991-10-18 1995-09-12 Birtcher Medical Systems, Inc. Multifunctional probe for minimally invasive surgery
US5451222A (en) * 1994-03-16 1995-09-19 Desentech, Inc. Smoke evacuation system
US5460602A (en) * 1989-01-23 1995-10-24 Shapira; Nadiv Smoke evacuator for smoke generating devices
US5520685A (en) * 1994-08-04 1996-05-28 Alto Development Corporation Thermally-insulated anti-clog tip for electrocautery suction tubes
US5693052A (en) * 1995-09-01 1997-12-02 Megadyne Medical Products, Inc. Coated bipolar electrocautery
US5730742A (en) * 1994-08-04 1998-03-24 Alto Development Corporation Inclined, flared, thermally-insulated, anti-clog tip for electrocautery suction tubes
US5843080A (en) * 1996-10-16 1998-12-01 Megadyne Medical Products, Inc. Bipolar instrument with multi-coated electrodes
US5944715A (en) * 1996-06-20 1999-08-31 Gyrus Medical Limited Electrosurgical instrument
US5951548A (en) * 1997-02-21 1999-09-14 Stephen R. DeSisto Self-evacuating electrocautery device
US6004319A (en) * 1995-06-23 1999-12-21 Gyrus Medical Limited Electrosurgical instrument
US6013076A (en) * 1996-01-09 2000-01-11 Gyrus Medical Limited Electrosurgical instrument
US6015406A (en) * 1996-01-09 2000-01-18 Gyrus Medical Limited Electrosurgical instrument
US6027501A (en) * 1995-06-23 2000-02-22 Gyrus Medical Limited Electrosurgical instrument
US6090106A (en) * 1996-01-09 2000-07-18 Gyrus Medical Limited Electrosurgical instrument
US6093186A (en) * 1996-12-20 2000-07-25 Gyrus Medical Limited Electrosurgical generator and system
US6102885A (en) * 1996-08-08 2000-08-15 Bass; Lawrence S. Device for suction-assisted lipectomy and method of using same
WO2000053249A1 (en) * 1999-03-10 2000-09-14 Johnson W Dudley Tissue traction device
US6146353A (en) * 1998-09-22 2000-11-14 Sherwood Services Ag Smoke extraction device
US6149646A (en) * 1999-02-02 2000-11-21 Linvatec Corporation Monopolar tissue ablator
US6210405B1 (en) 1996-06-20 2001-04-03 Gyrus Medical Limited Under water treatment
US6261286B1 (en) 1995-06-23 2001-07-17 Gyrus Medical Limited Electrosurgical generator and system
US6277114B1 (en) 1998-04-03 2001-08-21 Gyrus Medical Limited Electrode assembly for an electrosurical instrument
US6312426B1 (en) 1997-05-30 2001-11-06 Sherwood Services Ag Method and system for performing plate type radiofrequency ablation
US6358273B1 (en) 1999-04-09 2002-03-19 Oratec Inventions, Inc. Soft tissue heating apparatus with independent, cooperative heating sources
US6379350B1 (en) 1999-10-05 2002-04-30 Oratec Interventions, Inc. Surgical instrument for ablation and aspiration
US6391028B1 (en) 1997-02-12 2002-05-21 Oratec Interventions, Inc. Probe with distally orientated concave curve for arthroscopic surgery
US6428503B1 (en) 1999-01-19 2002-08-06 Atc Technologies, Inc. Surgical instrument for providing suction and irrigation
US6461357B1 (en) 1997-02-12 2002-10-08 Oratec Interventions, Inc. Electrode for electrosurgical ablation of tissue
US6544260B1 (en) 1996-08-20 2003-04-08 Oratec Interventions, Inc. Method for treating tissue in arthroscopic environment using precooling and apparatus for same
US6565561B1 (en) 1996-06-20 2003-05-20 Cyrus Medical Limited Electrosurgical instrument
US6645203B2 (en) 1997-02-12 2003-11-11 Oratec Interventions, Inc. Surgical instrument with off-axis electrode
US20040015216A1 (en) * 2002-05-30 2004-01-22 Desisto Stephen R. Self-evacuating electrocautery device
US6695839B2 (en) 2001-02-08 2004-02-24 Oratec Interventions, Inc. Method and apparatus for treatment of disrupted articular cartilage
US6747218B2 (en) 2002-09-20 2004-06-08 Sherwood Services Ag Electrosurgical haptic switch including snap dome and printed circuit stepped contact array
US20040153055A1 (en) * 2000-12-15 2004-08-05 Tyco Healthcare Group Lp Electrosurgical electrode shroud
US6780180B1 (en) 1995-06-23 2004-08-24 Gyrus Medical Limited Electrosurgical instrument
US6939346B2 (en) 1999-04-21 2005-09-06 Oratec Interventions, Inc. Method and apparatus for controlling a temperature-controlled probe
US20050240206A1 (en) * 2004-04-21 2005-10-27 Sjostrom Douglas D Surgical instrument aspiration valve
US6997941B2 (en) 1996-08-13 2006-02-14 Oratec Interventions, Inc. Method and apparatus for treating annular fissures in intervertebral discs
US20060041257A1 (en) * 2003-11-20 2006-02-23 Sartor Joe D Electrosurgical pencil with improved controls
USD521641S1 (en) 2003-11-13 2006-05-23 Sherwood Services Ag Electrosurgical pencil with three button control
US20060276783A1 (en) * 1996-09-20 2006-12-07 Ioan Cosmescu Multifunctional telescopic monopolar/bipolar surgical device and method thereof
US20060293655A1 (en) * 2005-06-28 2006-12-28 Sherwood Services Ag Electrode with rotatably deployable sheath
US7156844B2 (en) 2003-11-20 2007-01-02 Sherwood Services Ag Electrosurgical pencil with improved controls
US7156842B2 (en) 2003-11-20 2007-01-02 Sherwood Services Ag Electrosurgical pencil with improved controls
US7226447B2 (en) 2004-06-23 2007-06-05 Smith & Nephew, Inc. Electrosurgical generator
US7235072B2 (en) 2003-02-20 2007-06-26 Sherwood Services Ag Motion detector for controlling electrosurgical output
US7241294B2 (en) 2003-11-19 2007-07-10 Sherwood Services Ag Pistol grip electrosurgical pencil with manual aspirator/irrigator and methods of using the same
US7244257B2 (en) 2002-11-05 2007-07-17 Sherwood Services Ag Electrosurgical pencil having a single button variable control
US7393354B2 (en) 2002-07-25 2008-07-01 Sherwood Services Ag Electrosurgical pencil with drag sensing capability
US20090248010A1 (en) * 2008-03-31 2009-10-01 Monte Fry Electrosurgical Pencil Including Improved Controls
US7655003B2 (en) 2005-06-22 2010-02-02 Smith & Nephew, Inc. Electrosurgical power control
US7828794B2 (en) 2005-08-25 2010-11-09 Covidien Ag Handheld electrosurgical apparatus for controlling operating room equipment
US7879033B2 (en) 2003-11-20 2011-02-01 Covidien Ag Electrosurgical pencil with advanced ES controls
US20110237920A1 (en) * 2008-08-13 2011-09-29 Simon Glaser Suction apparatus for extracting fluid during a surgical intervention
US8162937B2 (en) 2008-06-27 2012-04-24 Tyco Healthcare Group Lp High volume fluid seal for electrosurgical handpiece
US8231620B2 (en) 2009-02-10 2012-07-31 Tyco Healthcare Group Lp Extension cutting blade
US8235987B2 (en) 2007-12-05 2012-08-07 Tyco Healthcare Group Lp Thermal penetration and arc length controllable electrosurgical pencil
US8506565B2 (en) 2007-08-23 2013-08-13 Covidien Lp Electrosurgical device with LED adapter
US8597292B2 (en) 2008-03-31 2013-12-03 Covidien Lp Electrosurgical pencil including improved controls
US8636733B2 (en) 2008-03-31 2014-01-28 Covidien Lp Electrosurgical pencil including improved controls
US8668688B2 (en) 2006-05-05 2014-03-11 Covidien Ag Soft tissue RF transection and resection device
US10716587B2 (en) 2014-06-13 2020-07-21 Surgis Medical Llc Surgical device with light
US11039875B2 (en) 2016-04-26 2021-06-22 Kirwan Surgical Products Llc Non-stick monopolar suction coagulator
US11564732B2 (en) 2019-12-05 2023-01-31 Covidien Lp Tensioning mechanism for bipolar pencil

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5724342Y2 (en) * 1973-11-20 1982-05-26
JPS5330786U (en) * 1976-08-23 1978-03-16
FR2474857B1 (en) * 1980-02-06 1986-12-12 Boutmy Ets PLURIFUNCTIONAL SURGICAL APPARATUS
DE4038633C2 (en) * 1990-12-04 2003-06-26 Storz Karl Gmbh & Co Kg Device for rinsing and suctioning of operating areas
US5221281A (en) * 1992-06-30 1993-06-22 Valleylab Inc. Electrosurgical tubular trocar
WO1999025259A1 (en) * 1997-11-13 1999-05-27 Hugh Sharkey Method and device for tympanic membrane shrinkage
US6558382B2 (en) * 2000-04-27 2003-05-06 Medtronic, Inc. Suction stabilized epicardial ablation devices
US6840937B2 (en) * 2001-10-18 2005-01-11 Electrosurgery Associates, Llc Electrosurgical ablator with aspiration
WO2010039642A1 (en) * 2008-10-01 2010-04-08 Wilson-Cook Medical Inc. Barrel system for use with an endoscope
GB201308901D0 (en) 2013-05-17 2013-07-03 Gyrus Medical Ltd Electrosurgical instrument and system

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2275167A (en) * 1939-04-26 1942-03-03 Bierman William Electrosurgical instrument
US2808833A (en) * 1952-12-06 1957-10-08 Birtcher Corp Gas blanketed clotting instrument
US2814296A (en) * 1954-04-15 1957-11-26 S & R J Everett & Co Ltd Surgical needles
US2888928A (en) * 1957-04-15 1959-06-02 Seiger Harry Wright Coagulating surgical instrument
US3324225A (en) * 1963-03-12 1967-06-06 Elek Ska Svetsningsaktiebolage Composite hose unit for supplying a welding gun with a welding wire or wires, shieldig gas, welding current and compressed gas
US3411507A (en) * 1964-04-01 1968-11-19 Medtronic Inc Method of gastrointestinal stimulation with electrical pulses
US3680544A (en) * 1970-09-09 1972-08-01 James P Shinnick Transthoracic cannula-type device for cardiopulmonary resuscitation
US3685518A (en) * 1970-07-29 1972-08-22 Aesculap Werke Ag Surgical instrument for high-frequency surgery
US3825004A (en) * 1972-09-13 1974-07-23 Durden Enterprises Ltd Disposable electrosurgical cautery
US3828780A (en) * 1973-03-26 1974-08-13 Valleylab Inc Combined electrocoagulator-suction instrument

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2275167A (en) * 1939-04-26 1942-03-03 Bierman William Electrosurgical instrument
US2808833A (en) * 1952-12-06 1957-10-08 Birtcher Corp Gas blanketed clotting instrument
US2814296A (en) * 1954-04-15 1957-11-26 S & R J Everett & Co Ltd Surgical needles
US2888928A (en) * 1957-04-15 1959-06-02 Seiger Harry Wright Coagulating surgical instrument
US3324225A (en) * 1963-03-12 1967-06-06 Elek Ska Svetsningsaktiebolage Composite hose unit for supplying a welding gun with a welding wire or wires, shieldig gas, welding current and compressed gas
US3411507A (en) * 1964-04-01 1968-11-19 Medtronic Inc Method of gastrointestinal stimulation with electrical pulses
US3685518A (en) * 1970-07-29 1972-08-22 Aesculap Werke Ag Surgical instrument for high-frequency surgery
US3680544A (en) * 1970-09-09 1972-08-01 James P Shinnick Transthoracic cannula-type device for cardiopulmonary resuscitation
US3825004A (en) * 1972-09-13 1974-07-23 Durden Enterprises Ltd Disposable electrosurgical cautery
US3828780A (en) * 1973-03-26 1974-08-13 Valleylab Inc Combined electrocoagulator-suction instrument

Cited By (134)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4074718A (en) * 1976-03-17 1978-02-21 Valleylab, Inc. Electrosurgical instrument
US4202336A (en) * 1976-05-14 1980-05-13 Erbe Elektromedizin Kg Cauterizing probes for cryosurgery
US4347842A (en) * 1980-02-15 1982-09-07 Mark Beale Disposable electrical surgical suction tube and instrument
WO1981003271A1 (en) * 1980-05-13 1981-11-26 American Hospital Supply Corp A multipolar electrosurgical device
WO1981003272A1 (en) * 1980-05-13 1981-11-26 American Hospital Supply Corp A multipolar electrosurgical device
US4532924A (en) * 1980-05-13 1985-08-06 American Hospital Supply Corporation Multipolar electrosurgical device and method
US4492231A (en) * 1982-09-17 1985-01-08 Auth David C Non-sticking electrocautery system and forceps
US4568332A (en) * 1983-11-08 1986-02-04 Shippert Ronald D Medical instrument for suction lipectomy
US4919129A (en) * 1987-11-30 1990-04-24 Celebration Medical Products, Inc. Extendable electrocautery surgery apparatus and method
US5441503A (en) * 1988-09-24 1995-08-15 Considine; John Apparatus for removing tumors from hollow organs of the body
US5718709A (en) * 1988-09-24 1998-02-17 Considine; John Apparatus for removing tumours from hollow organs of the body
US5192267A (en) * 1989-01-23 1993-03-09 Nadiv Shapira Vortex smoke remover for electrosurgical devices
US5460602A (en) * 1989-01-23 1995-10-24 Shapira; Nadiv Smoke evacuator for smoke generating devices
US5052999A (en) * 1990-01-29 1991-10-01 Klein Jeffrey A Liposuction method and apparatus
US5256138A (en) * 1990-10-04 1993-10-26 The Birtcher Corporation Electrosurgical handpiece incorporating blade and conductive gas functionality
WO1994020031A1 (en) * 1991-03-28 1994-09-15 Nadiv Shapira Vortex smoke remover for smoke generating devices
US5133714A (en) * 1991-05-06 1992-07-28 Kirwan Surgical Products, Inc. Electrosurgical suction coagulator
US5234428A (en) * 1991-06-11 1993-08-10 Kaufman David I Disposable electrocautery/cutting instrument with integral continuous smoke evacuation
US5449356A (en) * 1991-10-18 1995-09-12 Birtcher Medical Systems, Inc. Multifunctional probe for minimally invasive surgery
US5314406A (en) * 1992-10-09 1994-05-24 Symbiosis Corporation Endoscopic electrosurgical suction-irrigation instrument
US5376089A (en) * 1993-08-02 1994-12-27 Conmed Corporation Electrosurgical instrument
US5451222A (en) * 1994-03-16 1995-09-19 Desentech, Inc. Smoke evacuation system
US5520685A (en) * 1994-08-04 1996-05-28 Alto Development Corporation Thermally-insulated anti-clog tip for electrocautery suction tubes
US5730742A (en) * 1994-08-04 1998-03-24 Alto Development Corporation Inclined, flared, thermally-insulated, anti-clog tip for electrocautery suction tubes
US6293942B1 (en) 1995-06-23 2001-09-25 Gyrus Medical Limited Electrosurgical generator method
US6261286B1 (en) 1995-06-23 2001-07-17 Gyrus Medical Limited Electrosurgical generator and system
US6780180B1 (en) 1995-06-23 2004-08-24 Gyrus Medical Limited Electrosurgical instrument
US6004319A (en) * 1995-06-23 1999-12-21 Gyrus Medical Limited Electrosurgical instrument
US6416509B1 (en) 1995-06-23 2002-07-09 Gyrus Medical Limited Electrosurgical generator and system
US6174308B1 (en) 1995-06-23 2001-01-16 Gyrus Medical Limited Electrosurgical instrument
US6027501A (en) * 1995-06-23 2000-02-22 Gyrus Medical Limited Electrosurgical instrument
US6056746A (en) * 1995-06-23 2000-05-02 Gyrus Medical Limited Electrosurgical instrument
US6306134B1 (en) 1995-06-23 2001-10-23 Gyrus Medical Limited Electrosurgical generator and system
US6364877B1 (en) 1995-06-23 2002-04-02 Gyrus Medical Limited Electrosurgical generator and system
US5693052A (en) * 1995-09-01 1997-12-02 Megadyne Medical Products, Inc. Coated bipolar electrocautery
US6013076A (en) * 1996-01-09 2000-01-11 Gyrus Medical Limited Electrosurgical instrument
US6090106A (en) * 1996-01-09 2000-07-18 Gyrus Medical Limited Electrosurgical instrument
US6015406A (en) * 1996-01-09 2000-01-18 Gyrus Medical Limited Electrosurgical instrument
US6234178B1 (en) 1996-01-09 2001-05-22 Gyrus Medical Limited Electrosurgical instrument
US6482202B1 (en) 1996-06-20 2002-11-19 Gyrus Medical Limited Under water treatment
US6565561B1 (en) 1996-06-20 2003-05-20 Cyrus Medical Limited Electrosurgical instrument
US6210405B1 (en) 1996-06-20 2001-04-03 Gyrus Medical Limited Under water treatment
US5944715A (en) * 1996-06-20 1999-08-31 Gyrus Medical Limited Electrosurgical instrument
US6918903B2 (en) * 1996-08-08 2005-07-19 Starion Instrument Corporation Device for suction-assisted lipectomy and method of using same
US7462176B2 (en) 1996-08-08 2008-12-09 Starion Instruments Corporation Device for suction-assisted lipectomy and method of using same
US20050256498A1 (en) * 1996-08-08 2005-11-17 Starion Instruments Corporation Device for suction-assisted lipectomy and method of using same
US20030176851A1 (en) * 1996-08-08 2003-09-18 Starion Instruments, Inc. Device for suction-assisted lipectomy and method of using same
US6544248B1 (en) * 1996-08-08 2003-04-08 Starion Instruments Corporation Device for suction-assisted lipectomy and method of using same
US6102885A (en) * 1996-08-08 2000-08-15 Bass; Lawrence S. Device for suction-assisted lipectomy and method of using same
US7647123B2 (en) 1996-08-13 2010-01-12 Oratec Interventions, Inc. Method for treating intervertebral discs
US7267683B2 (en) 1996-08-13 2007-09-11 Oratec Interventions, Inc. Method for treating intervertebral discs
US8226697B2 (en) 1996-08-13 2012-07-24 Neurotherm, Inc. Method for treating intervertebral disc
US7400930B2 (en) 1996-08-13 2008-07-15 Oratec Interventions, Inc. Method for treating intervertebral discs
US20080091252A1 (en) * 1996-08-13 2008-04-17 Oratec Interventions, Inc., A California Corporation Method for treating intervertebral disc
US6997941B2 (en) 1996-08-13 2006-02-14 Oratec Interventions, Inc. Method and apparatus for treating annular fissures in intervertebral discs
US8187312B2 (en) 1996-08-13 2012-05-29 Neurotherm, Inc. Method for treating intervertebral disc
US7282061B2 (en) 1996-08-13 2007-10-16 Oratec Interventions, Inc. Method of treating intervertebral disc
US6544260B1 (en) 1996-08-20 2003-04-08 Oratec Interventions, Inc. Method for treating tissue in arthroscopic environment using precooling and apparatus for same
US20100094283A1 (en) * 1996-09-20 2010-04-15 Ioan Cosmescu Multifunctional telescopic monopolar/bipolar surgical device and method therefore
US7935109B2 (en) 1996-09-20 2011-05-03 Ioan Cosmescu Multifunctional telescopic monopolar/bipolar surgical device and method thereof
US20060276783A1 (en) * 1996-09-20 2006-12-07 Ioan Cosmescu Multifunctional telescopic monopolar/bipolar surgical device and method thereof
US5843080A (en) * 1996-10-16 1998-12-01 Megadyne Medical Products, Inc. Bipolar instrument with multi-coated electrodes
US6093186A (en) * 1996-12-20 2000-07-25 Gyrus Medical Limited Electrosurgical generator and system
US6645203B2 (en) 1997-02-12 2003-11-11 Oratec Interventions, Inc. Surgical instrument with off-axis electrode
US6461357B1 (en) 1997-02-12 2002-10-08 Oratec Interventions, Inc. Electrode for electrosurgical ablation of tissue
US6391028B1 (en) 1997-02-12 2002-05-21 Oratec Interventions, Inc. Probe with distally orientated concave curve for arthroscopic surgery
US5951548A (en) * 1997-02-21 1999-09-14 Stephen R. DeSisto Self-evacuating electrocautery device
US6312426B1 (en) 1997-05-30 2001-11-06 Sherwood Services Ag Method and system for performing plate type radiofrequency ablation
US6277114B1 (en) 1998-04-03 2001-08-21 Gyrus Medical Limited Electrode assembly for an electrosurical instrument
US6146353A (en) * 1998-09-22 2000-11-14 Sherwood Services Ag Smoke extraction device
US6428503B1 (en) 1999-01-19 2002-08-06 Atc Technologies, Inc. Surgical instrument for providing suction and irrigation
US6149646A (en) * 1999-02-02 2000-11-21 Linvatec Corporation Monopolar tissue ablator
US6280415B1 (en) * 1999-03-10 2001-08-28 W. Dudley Johnson Tissue traction device
WO2000053249A1 (en) * 1999-03-10 2000-09-14 Johnson W Dudley Tissue traction device
US6358273B1 (en) 1999-04-09 2002-03-19 Oratec Inventions, Inc. Soft tissue heating apparatus with independent, cooperative heating sources
US6939346B2 (en) 1999-04-21 2005-09-06 Oratec Interventions, Inc. Method and apparatus for controlling a temperature-controlled probe
US6379350B1 (en) 1999-10-05 2002-04-30 Oratec Interventions, Inc. Surgical instrument for ablation and aspiration
US6986768B2 (en) 2000-12-15 2006-01-17 Sherwood Services Ag Electrosurgical electrode shroud
US20060189977A1 (en) * 2000-12-15 2006-08-24 Charles Allen Electrosurgical electrode shroud
US7060064B2 (en) 2000-12-15 2006-06-13 Sherwood Services Ag Electrosurgical electrode shroud
US20040153055A1 (en) * 2000-12-15 2004-08-05 Tyco Healthcare Group Lp Electrosurgical electrode shroud
US7582244B2 (en) 2000-12-15 2009-09-01 Covidien Ag Electrosurgical electrode shroud
US20050273098A1 (en) * 2000-12-15 2005-12-08 Charles Allen Electrosurgical electrode shroud
US6695839B2 (en) 2001-02-08 2004-02-24 Oratec Interventions, Inc. Method and apparatus for treatment of disrupted articular cartilage
US20040015216A1 (en) * 2002-05-30 2004-01-22 Desisto Stephen R. Self-evacuating electrocautery device
US8016824B2 (en) 2002-07-25 2011-09-13 Covidien Ag Electrosurgical pencil with drag sensing capability
US7621909B2 (en) 2002-07-25 2009-11-24 Covidien Ag Electrosurgical pencil with drag sensing capability
US7393354B2 (en) 2002-07-25 2008-07-01 Sherwood Services Ag Electrosurgical pencil with drag sensing capability
US6747218B2 (en) 2002-09-20 2004-06-08 Sherwood Services Ag Electrosurgical haptic switch including snap dome and printed circuit stepped contact array
US8128622B2 (en) 2002-11-05 2012-03-06 Covidien Ag Electrosurgical pencil having a single button variable control
US7244257B2 (en) 2002-11-05 2007-07-17 Sherwood Services Ag Electrosurgical pencil having a single button variable control
US7235072B2 (en) 2003-02-20 2007-06-26 Sherwood Services Ag Motion detector for controlling electrosurgical output
US7955327B2 (en) 2003-02-20 2011-06-07 Covidien Ag Motion detector for controlling electrosurgical output
USD521641S1 (en) 2003-11-13 2006-05-23 Sherwood Services Ag Electrosurgical pencil with three button control
US7241294B2 (en) 2003-11-19 2007-07-10 Sherwood Services Ag Pistol grip electrosurgical pencil with manual aspirator/irrigator and methods of using the same
US7879033B2 (en) 2003-11-20 2011-02-01 Covidien Ag Electrosurgical pencil with advanced ES controls
US7503917B2 (en) 2003-11-20 2009-03-17 Covidien Ag Electrosurgical pencil with improved controls
US7156842B2 (en) 2003-11-20 2007-01-02 Sherwood Services Ag Electrosurgical pencil with improved controls
US7156844B2 (en) 2003-11-20 2007-01-02 Sherwood Services Ag Electrosurgical pencil with improved controls
US7959633B2 (en) 2003-11-20 2011-06-14 Covidien Ag Electrosurgical pencil with improved controls
US20060041257A1 (en) * 2003-11-20 2006-02-23 Sartor Joe D Electrosurgical pencil with improved controls
US8449540B2 (en) 2003-11-20 2013-05-28 Covidien Ag Electrosurgical pencil with improved controls
US7766844B2 (en) 2004-04-21 2010-08-03 Smith & Nephew, Inc. Surgical instrument aspiration valve
US8608666B2 (en) 2004-04-21 2013-12-17 Smith & Nephew, Inc. Surgical instrument aspiration valve
US20050240206A1 (en) * 2004-04-21 2005-10-27 Sjostrom Douglas D Surgical instrument aspiration valve
US7226447B2 (en) 2004-06-23 2007-06-05 Smith & Nephew, Inc. Electrosurgical generator
US20100121317A1 (en) * 2005-06-22 2010-05-13 Smith & Nephew, Inc. Electrosurgical Power Control
US7655003B2 (en) 2005-06-22 2010-02-02 Smith & Nephew, Inc. Electrosurgical power control
US8603082B2 (en) 2005-06-22 2013-12-10 Smith & Nephew, Inc. Electrosurgical power control
US8052675B2 (en) 2005-06-22 2011-11-08 Smith & Nephew, Inc. Electrosurgical power control
US8348934B2 (en) 2005-06-22 2013-01-08 Smith & Nephew, Inc. Electrosurgical power control
US7500974B2 (en) 2005-06-28 2009-03-10 Covidien Ag Electrode with rotatably deployable sheath
US20060293655A1 (en) * 2005-06-28 2006-12-28 Sherwood Services Ag Electrode with rotatably deployable sheath
US8100902B2 (en) 2005-06-28 2012-01-24 Covidien Ag Electrode with rotatably deployable sheath
US8460289B2 (en) 2005-06-28 2013-06-11 Covidien Ag Electrode with rotatably deployable sheath
US7828794B2 (en) 2005-08-25 2010-11-09 Covidien Ag Handheld electrosurgical apparatus for controlling operating room equipment
US8668688B2 (en) 2006-05-05 2014-03-11 Covidien Ag Soft tissue RF transection and resection device
US8506565B2 (en) 2007-08-23 2013-08-13 Covidien Lp Electrosurgical device with LED adapter
US8945124B2 (en) 2007-12-05 2015-02-03 Covidien Lp Thermal penetration and arc length controllable electrosurgical pencil
US8235987B2 (en) 2007-12-05 2012-08-07 Tyco Healthcare Group Lp Thermal penetration and arc length controllable electrosurgical pencil
US8663219B2 (en) 2008-03-31 2014-03-04 Covidien Lp Electrosurgical pencil including improved controls
US9198720B2 (en) 2008-03-31 2015-12-01 Covidien Lp Electrosurgical pencil including improved controls
US8597292B2 (en) 2008-03-31 2013-12-03 Covidien Lp Electrosurgical pencil including improved controls
US20090248010A1 (en) * 2008-03-31 2009-10-01 Monte Fry Electrosurgical Pencil Including Improved Controls
US8632536B2 (en) 2008-03-31 2014-01-21 Covidien Lp Electrosurgical pencil including improved controls
US8636733B2 (en) 2008-03-31 2014-01-28 Covidien Lp Electrosurgical pencil including improved controls
US8663218B2 (en) 2008-03-31 2014-03-04 Covidien Lp Electrosurgical pencil including improved controls
US8591509B2 (en) 2008-03-31 2013-11-26 Covidien Lp Electrosurgical pencil including improved controls
US8162937B2 (en) 2008-06-27 2012-04-24 Tyco Healthcare Group Lp High volume fluid seal for electrosurgical handpiece
US20110237920A1 (en) * 2008-08-13 2011-09-29 Simon Glaser Suction apparatus for extracting fluid during a surgical intervention
US8231620B2 (en) 2009-02-10 2012-07-31 Tyco Healthcare Group Lp Extension cutting blade
US10716587B2 (en) 2014-06-13 2020-07-21 Surgis Medical Llc Surgical device with light
US11039875B2 (en) 2016-04-26 2021-06-22 Kirwan Surgical Products Llc Non-stick monopolar suction coagulator
US11564732B2 (en) 2019-12-05 2023-01-31 Covidien Lp Tensioning mechanism for bipolar pencil

Also Published As

Publication number Publication date
DE2324415B1 (en) 1974-10-24
JPS533596B2 (en) 1978-02-08
JPS5042687A (en) 1975-04-17
GB1449081A (en) 1976-09-08
DE2324415C2 (en) 1975-06-05

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