Patents by Inventor Naotake Maekubo
Naotake Maekubo 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: 11925767Abstract: To provide a catheter having electrodes to be subjected to application of voltages different from each other in polarity. An outer tube member (3) having a lumen (2); a handle provided on a proximal side of the outer tube member (3); a plurality of electrodes (5) provided on the outer tube member (3); conducting wires (6) connected to one or more of the electrodes (5) and disposed in the lumen (2), the conducting wires (6); and an operating wire (7) having a distal end portion fixed to a distal end portion of the outer tube member (3), wherein one of the electrodes (5a) is connected to a conducting wire (6a) at a connection point, which is different from a connecting point, where another electrode (5b) is connected to another conducting wire (6b), in a circumferential direction of the outer tube member (3).Type: GrantFiled: February 5, 2019Date of Patent: March 12, 2024Assignee: KANEKA CORPORATIONInventors: Daichi Kamiyama, Naotake Maekubo
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Patent number: 11305129Abstract: A defibrillation system having a defibrillation catheter and a power supply part; a first connector member (11) is connected to a handle member; a second connector member (21) is connected to the power supply part; the first connector member (11) has a first insulating member (12), first electrodes (13) protruding from the first insulating member (12), and a first tubular member (14); the second connector member (21) has a second insulating member (22) having longitudinal holes, second electrodes (23) disposed on an inner wall of the longitudinal holes, and a second tubular member (24); the first tubular member (11) has a first space (15) being to contain the second tubular member (24), a second space (16) not containing the first insulating member (12) but containing the first electrodes (13), and a third space (17) containing neither the first insulating member (12) nor the first electrodes (13).Type: GrantFiled: January 29, 2019Date of Patent: April 19, 2022Assignee: KANEKA CORPORATIONInventors: Shinichiro Sakamoto, Daichi Kamiyama, Naotake Maekubo
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Publication number: 20210113845Abstract: A defibrillation system having a defibrillation catheter and a power supply part; a first connector member (11) is connected to a handle member; a second connector member (21) is connected to the power supply part; the first connector member (11) has a first insulating member (12), first electrodes (13) protruding from the first insulating member (12), and a first tubular member (14); the second connector member (21) has a second insulating member (22) having longitudinal holes, second electrodes (23) disposed on an inner wall of the longitudinal holes, and a second tubular member (24); the first tubular member (11) has a first space (15) being to contain the second tubular member (24), a second space (16) not containing the first insulating member (12) but containing the first electrodes (13), and a third space (17) containing neither the first insulating member (12) nor the first electrodes (13).Type: ApplicationFiled: January 29, 2019Publication date: April 22, 2021Applicant: KANEKA CORPORATIONInventors: Shinichiro SAKAMOTO, Daichi KAMIYAMA, Naotake MAEKUBO
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Publication number: 20210046285Abstract: A catheter handle (1) includes handle body (2), and rotary member (3) being free to rotate with respect to the handle body (2) and connected to the wire. The handle body (2), in a planar view from a rotation axis direction of the rotary member (3), has second space (12) for the conductive wire is located from more distal side to more proximal side than first space (11) for the rotary member (3). The operating part (4) of the rotary member (3) is disposed on one side, and the second space (12) is disposed on another side, in the width direction of the handle (1). Length L1 from the center of the rotation axis to the rotary member (3) on the one side is longer than length L2 from the center of the rotation axis to the rotary member (3) on the another side.Type: ApplicationFiled: October 15, 2018Publication date: February 18, 2021Applicant: KANEKA CORPORATIONInventors: Naotake MAEKUBO, Daichi KAMIYAMA
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Publication number: 20210038859Abstract: To provide a catheter having electrodes to be subjected to application of voltages different from each other in polarity. An outer tube member (3) having a lumen (2); a handle provided on a proximal side of the outer tube member (3); a plurality of electrodes (5) provided on the outer tube member (3); conducting wires (6) connected to one or more of the electrodes (5) and disposed in the lumen (2), the conducting wires (6); and an operating wire (7) having a distal end portion fixed to a distal end portion of the outer tube member (3), wherein one of the electrodes (5a) is connected to a conducting wire (6a) at a connection point, which is different from a connecting point, where another electrode (5b) is connected to another conducting wire (6b), in a circumferential direction of the outer tube member (3).Type: ApplicationFiled: February 5, 2019Publication date: February 11, 2021Applicant: KANEKA CORPORATIONInventors: Daichi KAMIYAMA, Naotake MAEKUBO
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Patent number: 10856883Abstract: A medical clip cartridge (1) for connecting a medical clip (22) to a line member (25) having a connection part (31) on a distal part thereof, comprising an insertion port (2) for inserting a line member (25), an insertion path (3) extending distally from the insertion port (2), and a storing part (4) for storing a clip (22), that is connected to a distal end of the insertion path (3), wherein the insertion path (3) has a protrusion (5) projecting from an inner surface of the insertion path, and the protrusion (5) has a part whose top surface widens toward a distal end thereof and whose height from the inner surface of the insertion path increases toward the distal end.Type: GrantFiled: November 8, 2016Date of Patent: December 8, 2020Assignee: KANEKA CORPORATIONInventor: Naotake Maekubo
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Patent number: 10828035Abstract: An object of the present invention is to provide a connector that facilitates a connecting operation with a clip, prevents an unintended release of the clip, and suppresses a misoperation of the clip in a holding operation; a medical clip device including the connector; and a method for producing the medical clip device. A connector (20) for connecting a medical clip for holding a target site with a line member for moving the clip comprises: a through hole (21) whose depth direction is nonparallel to an axial direction; and a thin part that is formed at least at a part distal to the through hole and is thinner than a distal end of the through hole (21).Type: GrantFiled: December 6, 2016Date of Patent: November 10, 2020Assignee: KANEKA CORPORATIONInventor: Naotake Maekubo
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Patent number: 10441292Abstract: A clip device for an endoscope of the present invention comprises an outer tubular body 70; an inner tubular body 80 provided in the outer tubular body 70; a line member 50 placed in the inner tubular body 80; and a pinching part 20, for holding an indwelling clip, connected to a distal side of the line member 50; wherein the pinching part 20 has two pinching base plates 30a and 30b, a blade part 40a is provided at a distal end of the pinching base plate 30a and formed toward an inside of the pitching base plate 30a, a blade part 40b is provided at a distal end of the pinching base plate 30b and formed toward an inside of the pinching base plate 30b, a Young's modulus of the blade part 40a is smaller than that of the pinching base plate 30a, and a Young's modulus of the blade part 40b is smaller than that of the pinching base plate 30b.Type: GrantFiled: September 25, 2015Date of Patent: October 15, 2019Assignee: KANEKA CORPORATIONInventors: Masato Tsueda, Yuki Mukai, Naotake Maekubo
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Publication number: 20190282240Abstract: A medical clip cartridge (1) for connecting a medical clip (22) to a line member (25) having a connection part (31) on a distal part thereof, comprising an insertion port (2) for inserting a line member (25), an insertion path (3) extending distally from the insertion port (2), and a storing part (4) for storing a clip (22), that is connected to a distal end of the insertion path (3), wherein the insertion path (3) has a protrusion (5) projecting from an inner surface of the insertion path, and the protrusion (5) has a part whose top surface widens toward a distal end thereof and whose height from the inner surface of the insertion path increases toward the distal end.Type: ApplicationFiled: November 8, 2016Publication date: September 19, 2019Applicant: KANEKA CORPORATIONInventor: Naotake MAEKUBO
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Publication number: 20190231352Abstract: An object of the present invention is to provide a medical clip that enables the adjustment of a holding position or a closing angle until the very moment of closing the clip.Type: ApplicationFiled: October 4, 2016Publication date: August 1, 2019Applicant: KANEKA CORPORATIONInventor: Naotake MAEKUBO
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Publication number: 20180353183Abstract: An object of the present invention is to provide a connector that facilitates a connecting operation with a clip, prevents an unintended release of the clip, and suppresses a misoperation of the clip in a holding operation; a medical clip device including the connector; and a method for producing the medical clip device. A connector (20) for connecting a medical clip for holding a target site with a line member for moving the clip comprises: a through hole (21) whose depth direction is nonparallel to an axial direction; and a thin part that is formed at least at a part distal to the through hole and is thinner than a distal end of the through hole (21).Type: ApplicationFiled: December 6, 2016Publication date: December 13, 2018Applicant: KANEKA CORPORATIONInventor: Naotake MAEKUBO
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Publication number: 20170296197Abstract: A clip device for an endoscope of the present invention comprises an outer tubular body 70; an inner tubular body 80 provided in the outer tubular body 70; a line member 50 placed in the inner tubular body 80; and a pinching part 20, for holding an indwelling clip, connected to a distal side of the line member 50; wherein the pinching part 20 has two pinching base plates 30a and 30b, a blade part 40a is provided at a distal end of the pinching base plate 30a and formed toward an inside of the pitching base plate 30a, a blade part 40b is provided at a distal end of the pinching base plate 30b and formed toward an inside of the pinching base plate 30b, a Young's modulus of the blade part 40a is smaller than that of the pinching base plate 30a, and a Young's modulus of the blade part 40b is smaller than that of the pinching base plate 30b.Type: ApplicationFiled: September 25, 2015Publication date: October 19, 2017Applicant: KANEKA CORPORATIONInventors: Masato TSUEDA, Yuki MUKAI, Naotake MAEKUBO
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Publication number: 20170281176Abstract: A medical clip device includes an outer tubular body; an inner tubular body provided in the outer tubular body; a clip provided at a distal side of the inner tubular body; and a line member including a first end part, a second end part, and a middle part, wherein the first end part and the second end part extend out of the inner tubular body from an inside of the inner tubular body at a proximal side of the inner tubular body, and the middle part is hung on the clip at the distal side of the inner tubular body.Type: ApplicationFiled: June 19, 2017Publication date: October 5, 2017Applicant: Kaneka CorporationInventors: Naotake Maekubo, Masato Tsueda