Patents by Inventor Keiichi Arai
Keiichi Arai has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 7955252Abstract: This endoscopic treatment system is provided with an insertion-retraction and rotating device for a treatment tool, which performs an insertion-retraction operation along a direction of an axis of a treatment tool and a rotating operation around the axis, of the treatment tool inserted in a channel of an endoscope.Type: GrantFiled: June 5, 2006Date of Patent: June 7, 2011Assignee: Olympus CorporationInventors: Keita Suzuki, Keiichi Arai, Hiroyoshi Watanabe, Tsutomu Okada
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Patent number: 7918790Abstract: An electric bending endoscope includes a temperature sensor that detects the temperature of a motor as a state value indicating the driving state of a bending drive unit. A bending control device comprises: a temperature detection unit that receives the data of the temperature detected by the temperature sensor; a record unit in which the limits of motor temperature inputted in advance are recorded; a comparison unit that compares the data of the temperature sent from the temperature detection unit with the limits of motor temperature recorded in the record unit; and a notification unit that notifies that the driving state of a motor is approaching the limit.Type: GrantFiled: January 4, 2007Date of Patent: April 5, 2011Assignee: Olympus CorporationInventors: Yuichi Ikeda, Keiichi Arai, Takemitsu Honda, Seiichiro Kimoto, Takayasu Miyagi, Toshinari Maeda, Toshimasa Kawai
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Patent number: 7722532Abstract: An electric bending endoscope comprises a bending portion arranged to an inserting portion, a bending driving unit and a buffering member. The bending driving unit bends the bending portion, and includes a motor, a first unit and a second unit. The motor generates driving force for bending the bending portion. The first unit holds the motor. The second unit includes a driving force transmitting member. The buffering member connects the first unit to an outer member of the inserting portion, a connecting code and a switch. The buffering member absorbs external force generated during the operation of the electric bending endoscope.Type: GrantFiled: September 26, 2003Date of Patent: May 25, 2010Assignee: Olympus Optical Co., Ltd.Inventors: Yuichi Ikeda, Toshinari Maeda, Haruhiko Ueno, Keiichi Arai, Takayasu Miyagi
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Patent number: 7662092Abstract: An electric bending endoscope according to the present invention includes a bending portion arranged to an inserting portion, a bending driving mechanism which electrically bends the bending portion, an operation input member which instructs an operation to the bending driving mechanism so that the bending driving mechanism bends the bending portion, and a bending angle holding mechanism which holds the bending angle of the bending portion.Type: GrantFiled: April 23, 2004Date of Patent: February 16, 2010Assignee: Olympus CorporationInventors: Takayasu Miyagi, Toshinari Maeda, Keiichi Arai, Yuichi Ikeda
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Publication number: 20080141473Abstract: A cleaning brush which is inserted into a conduit of the endoscope, includes a long and flexible shaft, and a brush part provided at a leading end of the shaft. The brush part includes brush bristles, a strand, etc. A part of the shaft that overlaps the brush bristles in a state where the brush bristles are bent toward the leading end of the shaft, is provided with a small diameter part that is smaller in external diameter than the other part of the shaft. The dimension obtained by adding the external diameter of the small diameter part and twice the external diameter of the brush bristles is smaller than the internal diameter of a conduit into which this cleaning brush is inserted.Type: ApplicationFiled: December 1, 2005Publication date: June 19, 2008Inventors: Keiichi Arai, Motohiro Kuroda
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Patent number: 7331924Abstract: An electric bending endoscope apparatus includes an electric bending endoscope, a bending control device for controlling a bending direction and the amount of bending of a bending portion based on a bending instructing signal outputted from a portion for instructing a bending operation in the electric bending endoscope, an image processing device for generating an observing image captured by the electric bending endoscope to a video signal, and a display device for displaying the video signal generated by the image processing device as an endoscope image, wherein the electric bending endoscope includes a bending driving portion for bending the bending portion arranged at an inserting portion, a bending motive portion for driving the bending driving portion, a portion for restoring transmission and disconnection of driving force that reversibly switches a status for transmitting the driving force by transmitting the driving force of the bending motive portion to the bending driving portion and a status for disType: GrantFiled: March 21, 2003Date of Patent: February 19, 2008Assignee: Olympus CorporationInventors: Keiichi Arai, Takemitsu Honda, Seiichiro Kimoto, Takayasu Miyagi, Toshinari Maeda, Yuichi Ikeda, Toshimasa Kawai
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Publication number: 20070112255Abstract: An electric bending endoscope includes a temperature sensor that detects the temperature of a motor as a state value indicating the driving state of a bending drive unit. A bending control device comprises: a temperature detection unit that receives the data of the temperature detected by the temperature sensor; a record unit in which the limits of motor temperature inputted in advance are recorded; a comparison unit that compares the data of the temperature sent from the temperature detection unit with the limits of motor temperature recorded in the record unit; and a notification unit that notifies that the driving state of a motor is approaching the limit.Type: ApplicationFiled: January 4, 2007Publication date: May 17, 2007Applicant: Olympus Optical Co., Ltd.Inventors: Yuichi Ikeda, Keiichi Arai, Takemitsu Honda, Seiichiro Kimoto, Takayasu Miyagi, Toshinari Maeda, Toshimasa Kawai
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Publication number: 20060224162Abstract: This endoscopic treatment system is provided with an insertion-retraction and rotating device for a treatment tool, which performs an insertion-retraction operation along a direction of an axis of a treatment tool and a rotating operation around the axis, of the treatment tool inserted in a channel of an endoscope.Type: ApplicationFiled: June 5, 2006Publication date: October 5, 2006Applicant: OLYMPUS CORPORATIONInventors: Keita Suzuki, Keiichi Arai, Hiroyoshi Watanabe, Tsutomu Okada
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Patent number: 7060027Abstract: Driving force of a bending motor is transmitted to a sprocket via a clutch mechanism portion. The operation of a switching operation lever switches the clutch mechanism portion to a disconnecting/restoring status. A bending control device includes a bending angle calculating portion which calculates information on a bending status based on an output signal of a potentiometer, a motor driving signal generating portion which generates a driving signal for bending a bending portion, a JS-motor driving signal generating portion which calculates a position for an instructing status of a stick portion based on the information on the bending status and generates the driving signal for moving the stick portion to the position, and a calibration instructing portion which receives a position signal from a status detecting switch and which sends an instruction for outputting to a JS motor, the driving signal generated by the JS-motor driving signal generating portion.Type: GrantFiled: March 24, 2003Date of Patent: June 13, 2006Assignee: Olympus CorporationInventors: Toshinari Maeda, Keiichi Arai, Takemitsu Honda, Seiichiro Kimoto, Takayasu Miyagi, Yuichi Ikeda, Toshimasa Kawai
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Publication number: 20060100484Abstract: An electrical bending endoscope includes: an elongated insertion section having a bending portion that is bendable within a predetermined range; a control section that is arranged to the proximal end of the insertion section; a driving source that generates the driving force for bending the bending portion; a driving-force transmitting mechanism that transmits the driving force supplied from the driving source to the bending portion; a driving-force interrupting mechanism that is arranged to a transmitting line of the driving force transmitted from the driving source to the bending portion and interrupts the transmission of the driving force; a switching operating member that is arranged to the control section and mechanically connected to the driving-force interrupting mechanism, to interrupt the transmission of the driving force via the driving-force interrupting mechanism upon its operation; and an error-operation preventing device that prevents unintentional operation of the switching operating member.Type: ApplicationFiled: November 9, 2005Publication date: May 11, 2006Applicant: OLYMPUS CORPORATIONInventors: Toshinari Maeda, Keiichi Arai, Yuichi Ikeda, Takayasu Miyagi
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Publication number: 20060100485Abstract: A fluid control input device for endoscope includes a moving member that is moved in accordance with the operation for instructing the switching of a channel arranged in the endoscope by an operator, a restoring member that restores the moving member to a predetermined restoring position, an operated amount detecting member that detects the amount of movement or operated force of the moving member by the operation of the operator and outputs information corresponding to the detected amount of movement or operated force, a covering member that is connected to an exterior member of the endoscope so as to watertightly cover the moving member while permitting the movement of the moving member, and an amount-of-force changing mechanism that changes the amount of operated force of the moving member after/before a predetermined position at which the moving member is moved by the operation of the operator to the predetermined position.Type: ApplicationFiled: November 9, 2005Publication date: May 11, 2006Applicant: OLYMPUS CORPORATIONInventors: Keiichi Arai, Toshinari Maeda, Yuichi Ikeda, Takayasu Miyagi
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Patent number: 7008376Abstract: An electric bending endoscope includes a bending portion arranged to an inserting portion and a bending driving unit which bends the bending portion. In the electric bending endoscope, the bending driving unit includes a motor which generates driving force for bending the bending portion, a first unit which holds the motor, a driving force transmitting member which transmits the driving force of the motor, and a second unit which bends the bending portion by the driving force of the motor. The electric bending endoscope further includes a first holding member which detachably supports, to the first unit, a rotating shaft arranged to the driving force transmitting member of the second unit.Type: GrantFiled: September 26, 2003Date of Patent: March 7, 2006Assignee: Olympus CorporationInventors: Yuichi Ikeda, Toshinari Maeda, Haruhiko Ueno, Keiichi Arai, Takayasu Miyagi
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Patent number: 6932761Abstract: An electrically-bent endoscope includes a bend driving portion for bending a bending portion. The bend driving portion has a motor for generating driving force, a gear train for transmitting driving force generated in the motor, a sprocket for converting driving force of the motor to a back and forth movement of bending operation wires for bending the bending portion at the head portion of an inserting portion, and a clutch mechanism for connecting and disconnecting driving force transmitted from the gear train to the sprocket. The clutch mechanism includes a transmitting member for connecting and disconnecting the gear train and sprocket, a thrust mechanism for moving the transmitting member in the axial direction of the sprocket and a clutch operating member, connected to the thrust mechanism, for inputting instructions for connecting and disconnecting the gear train and the sprocket.Type: GrantFiled: September 26, 2003Date of Patent: August 23, 2005Assignee: Olympus CorporationInventors: Toshinari Maeda, Haruhiko Ueno, Keiichi Arai, Yuichi Ikeda, Takayasu Miyagi
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Publication number: 20040267093Abstract: An electric bending endoscope according to the present invention includes a bending portion arranged to an inserting portion, a bending driving mechanism which electrically bends the bending portion, an operation input member which instructs an operation to the bending driving mechanism so that the bending driving mechanism bends the bending portion, and a bending angle holding mechanism which holds the bending angle of the bending portion.Type: ApplicationFiled: April 23, 2004Publication date: December 30, 2004Applicant: Olympus CorporationInventors: Takayasu Miyagi, Toshinari Maeda, Keiichi Arai, Yuichi Ikeda
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Publication number: 20040193015Abstract: An electric bending endoscope includes a temperature sensor that detects the temperature of a motor as a state value indicating the driving state of a bending drive unit. A bending control device comprises: a temperature detection unit that receives the data of the temperature detected by the temperature sensor; a record unit in which the limits of motor temperature inputted in advance are recorded; a comparison unit that compares the data of the temperature sent from the temperature detection unit with the limits of motor temperature recorded in the record unit; and a notification unit that notifies that the driving state of a motor is approaching the limit.Type: ApplicationFiled: March 31, 2003Publication date: September 30, 2004Applicant: OLYMPUS OPTICAL CO., LTD,Inventors: Yuichi Ikeda, Keiichi Arai, Takemitsu Honda, Seiichiro Kimoto, Takayasu Miyagi, Toshinari Maeda, Toshimasa Kawai
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Publication number: 20040193014Abstract: An electric bending endoscope includes a bending driving portion which bends a bending portion arranged to a distal side of an inserting portion, a bending operation input portion which instructs and inputs a bending operation of the bending portion, and a preventing device which prevents the bending operation of the bending portion which is not intended by an operator.Type: ApplicationFiled: March 26, 2003Publication date: September 30, 2004Applicant: OLYMPUS OPTICAL CO., LTD.Inventors: Takayasu Miyagi, Keiichi Arai, Kouta Ishibiki, Hiroki Moriyama, Akira Suzuki, Toshinari Maeda, Yuichi Ikeda
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Publication number: 20040073084Abstract: An electrically-bent endoscope includes a bend driving portion for bending a bending portion. The bend driving portion has a motor for generating driving force, a gear train for transmitting driving force generated in the motor, a sprocket for converting driving force of the motor to a back and forth movement of bending operation wires for bending the bending portion at the head portion of an inserting portion, and a clutch mechanism for connecting and disconnecting driving force transmitted from the gear train to the sprocket. The clutch mechanism includes a transmitting member for connecting and disconnecting the gear train and sprocket, a thrust mechanism for moving the transmitting member in the axial direction of the sprocket and a clutch operating member, connected to the thrust mechanism, for inputting instructions for connecting and disconnecting the gear train and the sprocket.Type: ApplicationFiled: September 26, 2003Publication date: April 15, 2004Applicant: OLYMPUS OPTICAL CO., LTD.Inventors: Toshinari Maeda, Haruhiko Ueno, Keiichi Arai, Yuichi Ikeda, Takayasu Miyagi
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Publication number: 20040073083Abstract: An electric bending endoscope comprises a bending portion arranged to an inserting portion, a bending driving unit and a buffering member. The bending driving unit bends the bending portion, and includes a motor, a first unit and a second unit. The motor generates driving force for bending the bending portion. The first unit holds the motor. The second unit includes a driving force transmitting member. The buffering member connects the first unit to an outer member of the inserting portion, a connecting code and a switch. The buffering member absorbs external force generated during the operation of the electric bending endoscope.Type: ApplicationFiled: September 26, 2003Publication date: April 15, 2004Applicant: OLYMPUS OPTICAL CO., LTD.Inventors: Yuichi Ikeda, Toshinari Maeda, Haruhiko Ueno, Keiichi Arai, Takayasu Miyagi
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Publication number: 20040073085Abstract: An electric bending endoscope comprises a bending portion arranged to an inserting portion and a bending driving unit which bends the bending portion. In the electric bending endoscope, the bending driving unit comprises a motor which generates driving force for bending the bending portion, a first unit which holds the motor, a driving force transmitting member which transmits the driving force of the motor, and a second unit which bends the bending portion by the driving force of the motor. The electric bending endoscope further comprises a first holding member which detachably supports, to the first unit, a rotating shaft arranged to the driving force transmitting member of the second unit.Type: ApplicationFiled: September 26, 2003Publication date: April 15, 2004Applicant: OLYMPUS OPTICAL CO., LTD.Inventors: Yuichi Ikeda, Toshinari Maeda, Haruhiko Ueno, Keiichi Arai, Takayasu Miyagi
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Publication number: 20040054258Abstract: Driving force of a bending motor is transmitted to a sprocket via a clutch mechanism portion. The operation of a switching operation lever switches the clutch mechanism portion to a disconnecting/restoring status. A bending control device includes a bending angle calculating portion which calculates information on a bending status based on an output signal of a potentiometer, a motor driving signal generating portion which generates a driving signal for bending a bending portion, a JS-motor driving signal generating portion which calculates a position for an instructing status of a stick portion based on the information on the bending status and generates the driving signal for moving the stick portion to the position, and a calibration instructing portion which receives a position signal from a status detecting switch and which sends an instruction for outputting to a JS motor, the driving signal generated by the JS-motor driving signal generating portion.Type: ApplicationFiled: March 24, 2003Publication date: March 18, 2004Applicant: OLYMPUS OPTICAL CO., LTD.Inventors: Toshinari Maeda, Keiichi Arai, Takemitsu Honda, Seiichiro Kimoto, Takayasu Miyagi, Yuichi Ikeda, Toshimasa Kawai