ELECTRIC SURGICAL INSTRUMENT AND MANUFACTURE

    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

    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.

    BIPOLAR ELECTROSURGICAL INSTRUMENT FOR SEALING VESSELS

    公开(公告)号:CA2309724C

    公开(公告)日:2010-10-12

    申请号:CA2309724

    申请日:1998-11-11

    Applicant: VALLEYLAB INC

    Abstract: A bipolar electro-surgical instrument (10) has opposable seal surfaces (18, 19) on its jaws (16, 17) for grasping, sealing vessels, and vascular tissue. Inner, and outer instrument members (11, 12) allow arcuate motion of the seal surfaces. An open lock box (13) provides a pivot with a lateral support to maintain alignment of the lateral surfaces. Ratchets (25, 26) on the instrument members hold a constant closure force on the tissue during the seal process. A shank portion (14, 15) on each member is tuned to provide an appropriate spring force to hold the surfaces together. During surgery the instrument can be used to grasp, clamp vascular tissue, and apply bipolar electro-surgical current through the clamped tissue. In one embodiment, the seal surfaces are partially insulated to prevent a short circuit when the instrument jaws are closed together. In another embodiment, the seal surfaces are removably mounted on the jaws.

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