公开(公告)号：JPH1024049A

公开(公告)日：1998-01-27

申请号：JP8494797

申请日：1997-04-03

Applicant: VALLEYLAB INC ,  UNIV ILLINOIS

Inventor： LAMBRECHT GREGORY H ,  PHILPOTT MICHAEL L ,  RYAN THOMAS P ,  SCHMALTZ DALE F ,  SELLERS JR ORLANDO

IPC: A61B18/12 ,  A61B17/42 ,  A61B18/14 ,  A61B17/39

Abstract: PROBLEM TO BE SOLVED: To provide a device for electric surgical operation for treating myoma, or more concretely, a multi-electrode device for necrotizing a mass quantity of leiomyoma of the uterus by use for one time. SOLUTION: A bipolar type electric myoma breaking device 10 for a surgical operation is provided with a thin and long shaft 14 of such a size as to be engaged in a cannula for a peritoneoscope operation to a myoma of the uterus which is also known as fibroma. The myoma breaking device 10 is designed to break a mass quantity of tissue by use for one time. A terminal end 16 of the shaft 14 has at least three electrodes 17 of such a design as to get in contact with the tissue. In a substitutional mode of execution of the myoma breaking device 10, four, six, or eight electrodes are provided. A power generator for a surgical operation is connected to the myoma breaking device 10 to provide a high frequency current to the electrodes 17. At least one electrode is connected to a first bipolar type output terminal of the power generator, and at least one of the other electrodes is connected to a second bipolar type output terminal.

公开(公告)号：AU688649B2

公开(公告)日：1998-03-12

申请号：AU4271896

申请日：1996-01-03

Applicant: VALLEYLAB INC

Inventor： BUYSSE STEVE ,  PLATT ROBERT C JR ,  SCHMALTZ DALE F

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

公开(公告)号：DE19713797A1

公开(公告)日：1997-10-09

申请号：DE19713797

申请日：1997-04-03

Applicant: VALLEYLAB INC ,  UNIV ILLINOIS

Inventor： LAMBRECHT GREGORY H ,  PHILPOTT MICHAEL L ,  RYAN THOMAS P ,  SCHMALTZ DALE F ,  SELLERS JUN ORLANDO

IPC: A61B18/12 ,  A61B17/42 ,  A61B18/14 ,  A61B17/38

Abstract: The instrument includes an extended rigid shaft (14) with a proximal end (15) and a distal end (16), an inner chamber and an outer diameter of 10 mm or less. Also at least three electrodes (17), are arranged movably in the inner chamber. At least one of the electrodes is connected with the first output connection, and at least one other electrode is connected with the second output connection. An operating system (19) is fitted in vicinity of the proximal end (15) of the shaft (14), and is mechanically connected with the electrodes (17), in order that the electrodes travel out and back in relation to the distal end (16). An electric switch makes an electrical circuit through the electrodes and between the first and second output connections.

公开(公告)号：CA2212415A1

公开(公告)日：1996-08-15

申请号：CA2212415

申请日：1996-01-03

Applicant: VALLEYLAB INC

Inventor： BUYSSE STEVE ,  SCHMALTZ DALE F ,  PLATT ROBERT C JR

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

Abstract: A surgical system (10) has a multiple electrode electrosurgical capability in combination with a gas plasma capability for delivery of electrosurgical energy to the tissue (14) or bodily fluids (15) of a patient (16). The system includes a holder (17), a source of electrical energy (20), electrodes connected to the source of electrical energy (20), one or more passages (22) carried on the holder (17) for transporting ionizable gas (23), and a source of ionizable gas (24) of a selectable flow rate. The gas passages (22) may include at least one electrode extending toward the operative site. The gas passages (22) may include a part (28) that creates a vortex in the gas flow. The electrodes may be coaxially placed in the gas passages (22). The system may also be configured such that two electrodes are each shrouded by the ionized gas so that the electrosurgical energy is conducted to the tissue (14) or bodily fluids (15) of the operative site by passing along conductive pathways (25) in the ionized gas from each electrode. There may also be a dielectric barrier (26) between the conductive pathways (25). The system may also be configured such that one of the multiple electrodes (11) is substantially in contact with the tissue (14) or bodily fluids (15) of the operative site and another of the multiple electrodes (11) is in the circuit through the conductive pathway of the ionized gas flow so that electrosurgical energy is conducted through the tissue (14) or bodily fluids (15) of the operative site and between the electrodes. Methods of manufacture and use for the system are also claimed.

公开(公告)号：DE19701328A1

公开(公告)日：1997-07-24

申请号：DE19701328

申请日：1997-01-16

Applicant: VALLEYLAB INC

Inventor： LANDS MICHAEL J ,  PODRACKY JAMES J ,  RYAN THOMAS P ,  SCHMALTZ DALE F

IPC: A61M3/02 ,  A61M1/00 ,  A61B17/00 ,  A61B19/00 ,  A61M5/00

Abstract: The rinsing device (10) is used in conjunction with a suction tube (11) and a container holding the rinsing fluid. The device further comprises a funnel section (12) with a widened inlet (15) at one end connected via a channel (17) to a narrow outlet (16). In a chamber (18) within the funnel section is a projecting piece (19) which acts as a valve to close the inlet from the outlet. A port (20) is located in the projecting piece and a cover (28) is arranged proximally to it over the inlet of the funnel. The cover has an inlet for the rinsing medium and a channel (31) for the suction tube. A lip type valve assembly in the projecting piece acts to control fluid flow through the device. The device is assembled in stages from discreet components.

公开(公告)号：CA2195610A1

公开(公告)日：1997-07-24

申请号：CA2195610

申请日：1997-01-21

Applicant: VALLEYLAB INC

Inventor： LANDS MICHAEL J ,  PODRACKY JAMES J ,  RYAN THOMAS P ,  SCHMALTZ DALE F

IPC: A61M3/02 ,  A61M1/00

Abstract: A valve and irrigator 10 used with a suction tube 11 has an elongate funnel 12 with an axis through an enlarged entrance 15 and an opposed extended exit duct 16 of a flexible elastomer. A flow passage 17 through the elongate funnel 12 connects the entrance to the exit permitting fluid communication. A web 19 across and near the enlarged entrance 15 sealingly separates that from the exit. The web 19 and the elongate funnel 12 are made of silicone elastomer and are adhesively adhered to together. A portal 20 in the web 19 passes therethrough along the axis and is circular in shape to surround in fluid tight engagement the suction tube 11. A lid 28, proximally of the web 19 on the enlarged entrance 15, has an inlet 29 for irrigation and a pass through 30 for the tube; the lid 28 closes the enlarged entrance 15 forming a chamber 31 between the web 19 and the lid 28. A slit 23 within the web 19, near the portal 20 and spaced from the axis is in the form of a closed mouth 24 composed of a pair of sealing lips. Normally the pair of lips 25 are together but are able to separate and define a passageway 26 for fluid flow through the web 19. A peripheral bump 27 is radially disposed relative to the slit 23 and is located on the entrance in position to align flexure force therethrough and toward the axis. A method of using the valve and irrigator 10 with the suction tube 11 has steps including locating an elongate funnel 12 along the axis with the entrance thereon. Positioning the exit on the elongate funnel 12 opposite the entrance and along the axis is a step. Merging the exit with the entrance is step. A step is permitting fluid communication through the flow passage 17 between the entrance and exit. Sealingly separating the entrance and exit with the web 19 is a step. The step of passing the portal 20 through the web 19 along the axis so it surrounds tube therethrough. A method for making the valve and irrigator 10 has steps of locating the web 19 near the entrance, passing through the web 19 the portal 20 and slit 23.