Patents by Inventor Takeshi Kanamaru
Takeshi Kanamaru 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: 8414634Abstract: An elongate medical body for implanting an embolic coil at a desired position, or retrieving an embolic coil from an aneurysm, includes a flexible wire main body, and an electromagnet provided at a distal end portion of the wire main body. The electromagnet can generate a magnetic field at the distal end portion. An energization state of the electromagnet is switched to attach and detach a spiral embolic coil having a magnetically attractable proximal end portion to and from the distal end portion.Type: GrantFiled: July 27, 2007Date of Patent: April 9, 2013Assignee: Terumo Kabushiki KaishaInventors: Aya Sekido, Takeshi Kanamaru
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Patent number: 8303612Abstract: An intravascular foreign matter removing wire has a flexible long wire body, a first catching section located on the tip side of the wire body and operative to catch a foreign matter present inside a blood vessel, and a second catching section located in the vicinity of and on the base end side of the first catching section and operative to catch a foreign matter present inside a blood vessel.Type: GrantFiled: June 7, 2006Date of Patent: November 6, 2012Assignee: Terumo Kabushiki KaishaInventors: Koji Nakao, Hideshi Obitsu, Takeshi Kanamaru
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Patent number: 7753919Abstract: A wire for removing an intravascular foreign body comprises a flexible wire body, a branch part branching out from the forward end of the wire body, and a plurality of filaments extending across the branch part. The branch part and the filaments form a space for capturing a foreign body therein. At least one of the filaments is changeable in length so that the loop formed by the filament and the branch part changes in size. The wire is capable of relatively reliably capturing and removing a foreign body in the vessel.Type: GrantFiled: September 7, 2005Date of Patent: July 13, 2010Assignee: Terumo Kabushiki KaishaInventor: Takeshi Kanamaru
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Patent number: 7740626Abstract: The laser induced liquid jet generating apparatus irradiates a laser beam on a liquid in a main body, guides the generated liquid jet into a catheter via a nozzle, and generates a flow in the direction opposite the liquid jet. Even by the use of a catheter having a small outside diameter, therefore, the apparatus is enabled to effect powerful laser irradiation without being thermally affected by the laser beam and consequently shatter thrombus, for example, and recover by aspiration the shattered thrombus through the distal end of the catheter.Type: GrantFiled: November 17, 2004Date of Patent: June 22, 2010Assignee: Terumo Kabushiki KaishaInventors: Kazuyoshi Takayama, Takayuki Hirano, Atsuhiro Nakagawa, Hideshi Obitsu, Shigeru Omori, Takeshi Kanamaru
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Publication number: 20100016875Abstract: An intravascular foreign matter removing wire has a flexible long wire body, a first catching section located on the tip side of the wire body and operative to catch a foreign matter present inside a blood vessel, and a second catching section located in the vicinity of and on the base end side of the first catching section and operative to catch a foreign matter present inside a blood vessel.Type: ApplicationFiled: June 7, 2006Publication date: January 21, 2010Applicant: Terumo Kabushiki KaishaInventors: Koji Nakao, Hideshi Obitsu, Takeshi Kanamaru
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Patent number: 7575585Abstract: An intravascular obstruction removing wire includes an elongate wire body, at least two non-branched wire portions having distal ends and proximal ends which are connected to a distal end of the wire main body, and a plurality of filament portions extending across the wire portions. The non-branched wire portions and the filament portions form a trapping portion. The trapping portion is deformable from a large-diameter state in which the non-branched portions branch to the distal end of the wire body forward in different directions and the filament portions are separated from each other, so that a space surrounded by the non-branched wire portions and the filament portions is formed to trap therein an obstruction in a blood vessel, to a small-diameter state in which the non-branched wire portions are positioned so that a distance between the wire portions is smaller than that of the wire portions in the large-diameter state.Type: GrantFiled: November 18, 2005Date of Patent: August 18, 2009Assignees: Terumo Kabushiki Kaisha, Maruho Hatsujyo Kogyo Co., Ltd.Inventors: Katsuya Goto, Takashi Kaneko, Takeshi Kanamaru, Masahiro Takeuchi, Keiji Okada
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Publication number: 20080275547Abstract: An intravascular, indwelling instrument for placement in a blood vessel includes a body having a face in contact with a maintained blood flow to be maintained and a face in contact with a non-maintained blood flow not to be maintained, and a peptide fixed to all or part of the maintained blood flow contact face or the non-maintained blood flow contact face of the body. The peptide has specific interaction with vascular endothelial precursor cells, with the peptide permitting selective adsorption and adhesion of the vascular endothelial precursor cells to cover all or part of the maintained blood flow contact face or the non-maintained blood flow contact face of the body with the vascular endothelial precursor cells thereby reducing or inhibiting the blood flow not to be maintained.Type: ApplicationFiled: July 3, 2008Publication date: November 6, 2008Applicant: Terumo Kabushiki KaishaInventors: Takeshi KANAMARU, Yotaro Fujita
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Publication number: 20080027482Abstract: An elongate medical body for implanting an embolic coil at a desired position, or retrieving an embolic coil from an aneurysm, includes a flexible wire main body, and an electromagnet provided at a distal end portion of the wire main body. The electromagnet can generate a magnetic field at the distal end portion. An energization state of the electromagnet is switched to attach and detach a spiral embolic coil having a magnetically attractable proximal end portion to and from the distal end portion.Type: ApplicationFiled: July 27, 2007Publication date: January 31, 2008Applicant: Terumo Kabushiki KaishaInventors: Aya Sekido, Takeshi Kanamaru
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Publication number: 20060293697Abstract: A wire for removing an intravascular foreign body according to the present invention is a wire for removing an intravascular foreign body, including: a long or elongated wire body with flexibility; and a capturing portion including a foreign body capturing space which captures a foreign body in a blood vessel therein, the capturing portion being provided on a distal end of the wire body, in which the capturing portion includes: at least two branch wires branching from the distal end of the wire body; and a plurality of filaments bridged between the two branch wires, and at least one of the filaments includes a plurality of curved projections bent in a direction deviated from an extension line of a central axis of a proximal end of the filament. In accordance with the wire for removing an intravascular foreign body according to the present invention, the foreign body in the blood vessel can be surely captured and removed.Type: ApplicationFiled: June 20, 2006Publication date: December 28, 2006Applicant: Terumo Kabushiki KaishaInventors: Koji Nakao, Hideshi Obitsu, Takeshi Kanamaru
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Publication number: 20060116702Abstract: An intravascular obstruction removing wire includes an elongate wire body, at least two non-branched wire portions having distal ends and proximal ends which are connected to a distal end of the wire main body, and a plurality of filament portions extending across the wire portions. The non-branched wire portions and the filament portions form a trapping portion. The trapping portion is deformable from a large-diameter state in which the non-branched portions branch to the distal end of the wire body forward in different directions and the filament portions are separated from each other, so that a space surrounded by the non-branched wire portions and the filament portions is formed to trap therein an obstruction in a blood vessel, to a small-diameter state in which the non-branched wire portions are positioned so that a distance between the wire portions is smaller than that of the wire portions in the large-diameter state.Type: ApplicationFiled: November 18, 2005Publication date: June 1, 2006Applicants: TERUMO KABUSHIKI KAISHA, MARUHO HATSUJYO KOGYO CO., LTD.Inventors: Katsuya Goto, Takashi Kaneko, Takeshi Kanamaru, Masahiro Takeuchi, Keiji Okada
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Patent number: 7041116Abstract: An intravascular obstruction removing wire includes an elongate wire body, at least two non-branched wire portions having distal ends and proximal ends which are connected to a distal end of the wire main body, and a plurality of filament portions extending across the wire portions. The non-branched wire portions and the filament portions form a trapping portion. The trapping portion is deformable from a large-diameter state in which the non-branched portions branch to the distal end of the wire body forward in different directions and the filament portions are separated from each other, so that a space surrounded by the non-branched wire portions and the filament portions is formed to trap therein an obstruction in a blood vessel, to a small-diameter state in which the non-branched wire portions are positioned so that a distance between the wire portions is smaller than that of the wire portions in the large-diameter state.Type: GrantFiled: July 1, 2002Date of Patent: May 9, 2006Assignees: Terumo Kabushiki Kaisha, Maruho Hatsujyo Kogyo., Ltd.Inventors: Katsuya Goto, Takashi Kaneko, Takeshi Kanamaru, Masahiro Takeuchi, Keiji Okada
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Publication number: 20060064114Abstract: A wire to remove an intravascular foreign body includes a flexible long wire body, a foreign body capturing portion to capture a foreign body in a vessel, and an operating wire to deform the foreign body capturing portion. The foreign body capturing portion includes a first capturing part and a second capturing part. The first capturing part is formed from a filament which assumes a helical shape in its natural state and is arranged on the forward end of the wire body. The second capturing part is formed from a filament which assumes a helical shape in its natural state and is arranged on the forward end of the first capturing part. The first and second capturing parts together form a rearwardly open space for capturing the foreign body when the wire is moved rearwardly relative to the foreign body. The second capturing part is deformable such that the distance between its adjacent filaments decreases upon operation of the operating wire.Type: ApplicationFiled: September 22, 2005Publication date: March 23, 2006Applicant: Terumo Kabushiki KaishaInventors: Hideshi Obitsu, Takeshi Kanamaru
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Publication number: 20060052862Abstract: An intravascular, indwelling instrument for placement in a blood vessel includes a body having a face in contact with a maintained blood flow to be maintained and a face in contact with a non-maintained blood flow not to be maintained, and a peptide fixed to all or part of the maintained blood flow contact face or the non-maintained blood flow contact face of the body. The peptide has specific interaction with vascular endothelial precursor cells, with the peptide permitting selective adsorption and adhesion of the vascular endothelial precursor cells to cover all or part of the maintained blood flow contact face or the non-maintained blood flow contact face of the body with the vascular endothelial precursor cells thereby reducing or inhibiting the blood flow not to be maintained.Type: ApplicationFiled: September 2, 2005Publication date: March 9, 2006Applicant: Terumo Kabushiki KaishaInventors: Takeshi Kanamaru, Yotaro Fujita
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Publication number: 20060052798Abstract: A wire for removing an intravascular foreign body includes a flexible long wire body, a capturing part which is arranged on the forward end of the wire body and in which is formed a space for capturing an intravascular foreign body, and an auxiliary wire which is arranged on the forward end of the wire body. The auxiliary wire assumes a first state in which it projects into the space and a second state in which it retreats from the space as it moves relative to the capturing part.Type: ApplicationFiled: September 7, 2005Publication date: March 9, 2006Applicant: Terumo Kabushiki KaishaInventor: Takeshi Kanamaru
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Publication number: 20060052797Abstract: A wire for removing an intravascular foreign body comprises a flexible wire body, a branch part branching out from the forward end of the wire body, and a plurality of filaments extending across the branch part. The branch part and the filaments form a space for capturing a foreign body therein. At least one of the filaments is changeable in length so that the loop formed by the filament and the branch part changes in size. The wire is capable of relatively reliably capturing and removing a foreign body in the vessel.Type: ApplicationFiled: September 7, 2005Publication date: March 9, 2006Applicant: Terumo Kabushiki KaishaInventor: Takeshi Kanamaru
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Publication number: 20050171566Abstract: Disclosed herein is a wire for removing foreign matter such as an embolus in a blood vessel. The wire includes a flexible elongated wire body and first and second holding portions provided at the front end of the wire body in spaced relationship with each other. The first and second holding portions are movable relative to each other in a longitudinal direction of the wire body. In operation, the first and second holding portions are moved relative to each other to reduce the distance between the first and second holding portions, thereby holding the foreign matter therebetween. Accordingly, the foreign matter in the blood vessel can be caught and removed reliably irrespective of the size of the foreign matter.Type: ApplicationFiled: November 30, 2004Publication date: August 4, 2005Applicant: TERUMO KABUSHIKI KAISHAInventor: Takeshi Kanamaru
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Publication number: 20050124985Abstract: The laser induced liquid jet generating apparatus irradiates a laser beam on a liquid in a main body, guides the generated liquid jet into a catheter via a nozzle, and generates a flow in the direction opposite the liquid jet. Even by the use of a catheter having a small outside diameter, therefore, the apparatus is enabled to effect powerful laser irradiation without being thermally affected by the laser beam and consequently shatter thrombus, for example, and recover by aspiration the shattered thrombus through the distal end of the catheter.Type: ApplicationFiled: November 17, 2004Publication date: June 9, 2005Applicant: Terumo Kabushiki KaishaInventors: Kazuyoshi Takayama, Takayuki Hirano, Atsuhiro Nakagawa, Hideshi Obitsu, Shigeru Omori, Takeshi Kanamaru
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Publication number: 20030018355Abstract: An intravascular obstruction removing wire includes an elongate wire body, at least two non-branched wire portions having distal ends and proximal ends which are connected to a distal end of the wire main body, and a plurality of filament portions extending across the wire portions. The non-branched wire portions and the filament portions form a trapping portion. The trapping portion is deformable from a large-diameter state in which the non-branched portions branch to the distal end of the wire body forward in different directions and the filament portions are separated from each other, so that a space surrounded by the non-branched wire portions and the filament portions is formed to trap therein an obstruction in a blood vessel, to a small-diameter state in which the non-branched wire portions are positioned so that a distance between the wire portions is smaller than that of the wire portions in the large-diameter state.Type: ApplicationFiled: July 1, 2002Publication date: January 23, 2003Inventors: Katsuya Goto, Takashi Kaneko, Takeshi Kanamaru, Masahiro Takeuchi, Keiji Okada
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Patent number: 4673075Abstract: A working arrangement for performing multiple operations with a robot comprises a plurality of working stations at each of which a predetermined operation with a tool is performed to an unfinished work, a shifting unit provided in connection with each working station for holding the tool so as to be movable between a predetermined reference position and an operating position in each working station and for shifting the tool to the reference position from the operating position, and a robot provided to be movable in relation to the working stations for causing the tool to move from the reference position to the operating position in each working station.Type: GrantFiled: November 19, 1985Date of Patent: June 16, 1987Assignee: Mazda Motor CorporationInventors: Masato Ueyama, Takeshi Kanamaru, Toshikazu Shirai, Kiyoshi Nakano