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    Isolating switching circuit for an electrosurgical generator
    25.
    发明授权
    Isolating switching circuit for an electrosurgical generator 失效
    静电发生器隔离开关电路

    公开(公告)号：US3801800A

    公开(公告)日：1974-04-02

    申请号：US3801800D

    申请日：1972-12-26

    Applicant: VALLEYLAB INC

    Inventor： NEWTON D

    IPC: A61B18/12 ,  A61B17/36

    CPC classification number: A61B18/1206 ,  A61B18/12 ,  A61B18/1233 ,  A61B2018/0066 ,  Y10T307/773

    Abstract: An isolating switching circuit suitable for use in an electrosurgical generator to transmit mode information from an electrosurgical instrument to an electrosurgical power generator is disclosed. A selected light emitting diode is energized in accordance with the setting of a mode of operation switch located in the electrosurgical instrument. The light thus emitted impinges on an associated light activated transistor. The thusly activated light activated transistor in turn controls the mode of operation of the electrosurgical power generator so that the desired cutting or coagulating R.F. potential is generated. Alternatively no light emitting diode is energized and the electrosurgical generator idles.

    Abstract translation: 公开了一种适用于电外科发生器的电路切换电路，用于将电气手术仪器的模式信息传输到电外科发电机。 根据设置在电外科器械中的操作开关的模式，所选择的发光二极管被通电。 所发射的光照射在相关联的光激活晶体管上。 由此激活的光激活晶体管又控制电外科发电机的操作模式，使得所需的切割或凝结R.F. 产生电位。 或者，没有发光二极管通电，并且电外科发生器空转。

    Electrosurgical generator
    26.
    发明授权
    Electrosurgical generator 失效
    静电发生器

    公开(公告)号：US3699967A

    公开(公告)日：1972-10-24

    申请号：US3699967D

    申请日：1971-04-30

    Applicant: VALLEYLAB INC

    Inventor： ANDERSON ROBERT K

    IPC: A61B18/12 ,  A61B17/36

    CPC classification number: A61B18/1206 ,  A61B18/12 ,  A61B2018/0066 ,  Y10S128/22

    Abstract: An isolated output electrosurgical generator suitable for generating cutting and coagulation electrosurgical currents is described. The electrosurgical generator using a single power stage generates three distinct and independent currents-a coagulation current for hemostasis or tissue destruction; a pure cutting current for cutting with a minimum amount of hemostasis; and a blended cutting current with a moderate amount of hemostasis. The electrosurgical generator includes a solid state power stage driven by two discrete frequencies that provide substantially differing cutting and coagulation characteristics. The electrosurgical generator also includes a solid state control circuit that controls the operation of the power stage. More specifically, the control circuit controls whether the power stage generates a current near the resonant frequency of the LC circuit so that a coagulation current or a blended cutting current is generated or whether the power stage generates a current at another frequency whereby a pure cutting current is generated. The output from the power stage is connected through an output circuit to suitable electrosurgical instrument terminals. An indicator circuit is used to provide audio and visual indication of activation of the electrosurgical generator. In addition, the electrosurgical generator provides electrical isolation on all output connections to prevent patient burns caused by alternate return current paths.

    ELECTRIC SURGICAL INSTRUMENT AND MANUFACTURE
    27.
    发明专利
    ELECTRIC SURGICAL INSTRUMENT AND MANUFACTURE 失效

    公开(公告)号：JPH1057390A

    公开(公告)日：1998-03-03

    申请号：JP19376297

    申请日：1997-07-18

    Applicant: VALLEYLAB INC

    Inventor： LADTKOW JAMES ROBERT ,  LANDS MICHAEL JOHN ,  LAWES KATE RYLAND ,  UHLAND GERALD EDWARD

    IPC: A61B18/12 ,  A61B18/14 ,  A61B17/39

    Abstract: PROBLEM TO BE SOLVED: To provide a manufacture method of a low cost electric surgical instrument having an elastic conductor to be put buried in a mold injected housing. SOLUTION: An electric surgical instrument 10 is equipped with an elastic conductor 18 to be put buried in a mold injected housing 11. The conductor 18 stretches out of the terminal of a generator for electric surgery through the instrument and applied onto a patient electrode 15 on its top 12. Cost of the instrument 10 is reduced as it is made possible to get rid of complicated fixture process of the conductor arising from putting a hard conductor 18 in the mold injection process. Its manufacturing cost is as well reduced as it is possible to apply the patient electrode onto the conductor 18 before assembling an instrument housing.

    ELECTRODE AND NOZZLE COMBINATION FOR ELECTRIC SURGERY EQUIPMENT
    28.
    发明专利
    ELECTRODE AND NOZZLE COMBINATION FOR ELECTRIC SURGERY EQUIPMENT 失效

    公开(公告)号：JPH105241A

    公开(公告)日：1998-01-13

    申请号：JP6451697

    申请日：1997-03-18

    Applicant: VALLEYLAB INC

    Inventor： STODDARD ROBERT B ,  KETCHAM CLIFF R ,  RESCHKE ARLAN J

    IPC: A61B18/12 ,  A61B18/00 ,  A61B18/14 ,  A61B17/39

    Abstract: PROBLEM TO BE SOLVED: To provide an electrode and a nozzle combination to transport ionizable gas to the end of gas-reinforced electric surgery equipment. SOLUTION: An electrode 32 and a nozzle combination 30 have the base end part 34, the tip end part, and a part with a constant length between the base end part 34 and the tip end part 33, and transport an ionizable gas to an electric surgical pencil set on a patient. A shroud 36 surrounds the electrode 32 along the part with a constant length, but the base end part 34 and the tip end part 33 are made to remain exposed. A port 41 including a tube cavity communicating with a passage 39 is formed on the shroud 36 to make a fluid capable of communicating between the passage and the tube cavity. An end cap 43 is mounted on the base end part 38 to form an airtight seal between the base end part of the electrode and the rear part 38 of the shroud 36.

    CORD AND CIRCUIT FOR MANUAL SWITCH
    29.
    发明专利
    CORD AND CIRCUIT FOR MANUAL SWITCH 失效

    公开(公告)号：JPH09327465A

    公开(公告)日：1997-12-22

    申请号：JP5756297

    申请日：1997-03-12

    Applicant: VALLEYLAB INC

    Inventor： RATSUSERU DABURIYUU RINDOMAN ,  DEIBITSUDO ENU HAADO

    IPC: A61B18/00 ,  A61B18/14 ,  A61B17/36

    Abstract: PROBLEM TO BE SOLVED: To provide a replaceable accessory cord and manual switch which are supported at the end of an electrically surgical operation equipment so that a surgeon, who controls the energy supply of the electrically surgical operation equipment to a patient, can access to the manual switch. SOLUTION: In a set 10 consisting of replaceable accessories and cord for an electrically surgical operation equipment 11 which is composed of a base 15 and a handle 26 held by a surgeon and an end tool of an end section 16 through which the electrically surgical operation energy is supplied to a patient, a cord 17 is electrically connected between the electrically surgical operation equipment generator and equipment using more than two conductors. A manual switch 19 with a normally open contact is placed near the base 15, one of the normally open contact is connected to an operating conductor, and the other of the operating conductor is connected to the other of the contact. A socket of the manual switch 19 is electrically connected to the normally open contact. A terminal disposed in the electrically surgical operation equipment 11 makes the socket in the electrical contact cooperate with the operating conductor, and an insulating support member 24 fitted in the manual switch 19 is engaged with the equipment to prevent relative action.

    IRRIGATOR WITH VALVE, AND USE AND MANUFACTURE THEREOF
    30.
    发明专利
    IRRIGATOR WITH VALVE, AND USE AND MANUFACTURE THEREOF 失效

    公开(公告)号：JPH09201413A

    公开(公告)日：1997-08-05

    申请号：JP989697

    申请日：1997-01-23

    Applicant: VALLEYLAB INC

    Inventor： MAIKERU JIEI RANZU ,  JIEEMUZU JIEI PODORATSUKII ,  TOOMASU PII RAIAN ,  DEIRU EFU SHIYUMARUTSU

    IPC: A61M3/02 ,  A61M1/00

    Abstract: PROBLEM TO BE SOLVED: To provide an irrigator with a valve combined with an aspiration tube capable of manipulating both irrigation and aspiration with one hand or used together with the aspiration tube, the method of the use of the irrigator and the method for manufacturing the same. SOLUTION: A irrigator with a valve 10 provided with an aspiration tube 11 comprises a thin funnel 12 having an axis line penetrating an expanded entrance opening 15 made of a freely bendable elastomer, an out let extending tube 16 facing to the entrance opening. A flow path way 17 penetrating through the thin funnel 12 enables liquid communication by connecting the entrance and the out let. A web 19 crossing the entrance in the vicinity of the expanded entrance 15 tightly seals and separates the entrance from the out let. A gate 20 in the web 19 penetrates the web along the axis line and is made to be circular form to surround and liquid-tightly seal the aspiration tube 11. A lid 28 having a path way penetrating the entrance for irrigation and the aspiration tube closes the expanded entrance 15 to form a room 31 between the web 19 and the lid 28. A slit inside the web 19 forms a closed opening of a pair of seal tips.

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