Patents by Inventor Kazushi Murakami
Kazushi Murakami 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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Publication number: 20110196390Abstract: The present invention relates to a ligation apparatus that ligatures living tissue by a clip and provides an optimal ligation apparatus for ligaturing living tissue in a body cavity.Type: ApplicationFiled: April 19, 2011Publication date: August 11, 2011Applicants: OLYMPUS CORPORATION, OLYMPUS MEDICAL SYSTEMS CORP.Inventors: Junichi KOGISO, Kiyotaka MATSUNO, Mamoru NAKADA, Kazushi MURAKAMI
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Patent number: 7918785Abstract: A biopsy forceps as one of treatment instruments for endoscope includes: a tubular coil sheath introduced into a body cavity through a treatment instrument channel included in an endoscope insertion portion; a treatment portion disposed closer to a distal end side than a distal end surface of the coil sheath; an operation wire for transmitting a turning force to turn the treatment portion in a circumferential direction, the operation wire being inserted in the coil sheath in a forwardly/backwardly movable manner and turned in the circumferential direction; and a turn restricting mechanism portion for restricting a turn position of the treatment portion turned by the turning force transmitted by the operation wire with respect to the coil sheath at a first turn-restricting position or at a second turn-restricting position.Type: GrantFiled: January 17, 2007Date of Patent: April 5, 2011Assignee: Olympus Medical Systems Corp.Inventors: Tsutomu Okada, Yoshio Onuki, Hiroaki Ichikawa, Kazushi Murakami, Kazuki Honda, Yasuhito Kura, Takaaki Komiya
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Patent number: 7691054Abstract: An endoscope system comprises an endoscope, a treatment instrument cartridge, an advancing and retracting device, a controlling device, and an operation instructing device. The endoscope includes a treatment instrument channel in an inserting portion. The treatment instrument cartridge includes a treatment instrument and a storage case. The treatment instrument includes a treatment instrument inserting portion having an elasticity which is inserted through the treatment instrument channel, a treatment section at the tip end thereof, and an operating portion at the base end thereof. The storage case includes an inserting portion storing section into which the treatment instrument inserting portion is wound, an extension port from which the tip end of the wound treatment instrument inserting portion is extended, and a holding section for holding the base end of the treatment instrument inserting portion or the operating portion.Type: GrantFiled: June 23, 2006Date of Patent: April 6, 2010Assignee: Olympus Medical Systems CorporationInventors: Kazushi Murakami, Takaaki Komiya, Hiroaki Ichikawa, Yoshio Onuki, Yasuhito Kura, Takehiro Nishiie, Kazuki Honda
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Publication number: 20100069710Abstract: A treatment method for a tissue in a body cavity of a patient includes the steps of endoscopically introducing treatment tools into the body cavity of the patient from a natural opening of the patient, and setting the posture of the patient to a prone position.Type: ApplicationFiled: September 2, 2009Publication date: March 18, 2010Inventors: Ken Yamatani, Takayasu Mikkaichi, Kazushi Murakami, Kosuke Motai, Ayano Ishioka, Kunihide Kaji
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Publication number: 20100056863Abstract: A medical manipulator which includes: a plurality of arms formed in a cylindrical shape a distal end portion of which is made of a rigid member having a bending portion capable of bending; an insertion portion made of a rigid member having a plurality of channels in which base ends of the plurality of arms are connected to a distal end of the insertion portion so as to connect lumens of the arms to the plurality of channels; a photographic device provided at the distal end of the insertion portion; an operation portion that operates the bending portion; and a transmission member that connects the bending portion and the operation portion, in which the bending portion has: a first bending portion that is capable of bending in a predetermined direction by an operation of the operation portion, and a second bending portion provided in a base end than the first bending portion that is capable of fixing the plurality of arms in a bent state so as to mutually separate, and the transmission portion has: a first regiType: ApplicationFiled: July 10, 2009Publication date: March 4, 2010Inventors: Takumi DEJIMA, Ken YAMATANI, Ayano ISHIOKA, Kosuke MOTAI, Kazushi MURAKAMI, Takayasu MIKKAICHI
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Publication number: 20100030019Abstract: Endoscopic surgical operation method includes: a step of lifting a living tissue including an diseased tissue located distally relative to an operation channel of an endoscope inserted through a natural orifice; a step of suturing a proximal region and a distal region of the living tissue positioned basal relative to the diseased tissue lifted by a suturing means section projecting distally from the operation channel of the endoscope after the lifting; and a step of resecting the living tissue between the sutured regions and the diseased tissue endoscopically after suturing the proximal region and the distal region of the living tissue surrounding the diseased tissue.Type: ApplicationFiled: July 31, 2008Publication date: February 4, 2010Inventors: Noriko KURODA, Takayasu MIKKAICHI, Kosuke MOTAI, Kazushi MURAKAMI, Manabu MIYAMOTO, Shotaro TAKEMOTO, Satoko SUZUKI
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Publication number: 20100010508Abstract: A tissue fastening apparatus related to the present invention includes; a tissue fastening tool formed of a wire wound into a coil shape provided with a first tissue fixing section which is hooked onto a first biological tissue and a second tissue fixing section which is hooked onto a second biological tissue; a tubular puncturing tool which extends a tissue fastening tool and accommodates the stretched tissue fastening tool inside of the puncturing tool; a fastening tool pusher in which the distal end thereof is inserted into the puncturing tool and dispenses the tissue fastening tool inserted into the puncturing tool from a distal end of the puncturing tool when the fastening tool pusher advances; and a rotating mechanism to rotate the puncturing tool when the fastening tool pusher advances.Type: ApplicationFiled: July 11, 2008Publication date: January 14, 2010Applicant: OLYMPUS MEDICAL SYSTEMS CORP.Inventors: Shinji TAKAHASHI, Masatoshi SATO, Kazushi MURAKAMI, Tetsuya YAMAMOTO
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Publication number: 20100010514Abstract: A tissue fastening instrument that fastens a first biological tissue and a second biological tissue that is adjacent to the first biological tissue so as to come into close contact, provided with a first tissue fixing portion that consists of an elastic wire that is wound into a coil shape and engaged on the first biological tissue; a second tissue fixing portion that consists of an elastic wire that is wound into a coil shape, is connected to a first end portion of the first tissue fixing portion and engaged on the second biological tissue; and a peripheral spring portion that is connected to a second end portion of the first tissue fixing portion and extends toward the second tissue fixing portion while forming a loop on the outside of the first tissue fixing portion and the second tissue fixing portion, in which the peripheral spring portion has a spring portion that is connected to the second end portion of the first tissue fixing portion and extends toward the second tissue fixing portion, and an end turType: ApplicationFiled: April 27, 2009Publication date: January 14, 2010Applicant: OLYMPUS MEDICAL SYSTEMS CORP.Inventors: Ayano ISHIOKA, Masatoshi SATO, Shinji TAKAHASHI, Tatsutoshi HASHIMOTO, Yusuke NOMURA, Kazushi MURAKAMI
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Publication number: 20100010509Abstract: A tissue fastening apparatus includes a tissue fastening tool, with fastens a first biological tissue and a second biological tissue so as to bring the tissues into close contact and an applicator for indwelling the tissue fastening tool. The tissue fastening tool is made of an elastic wire rod and is wound in a coil shape. The applicator includes a needle tube accommodated in an inner cavity with the tissue fastening tool stretched, a stylet inserted into the inner cavity of the needle tube nearer to the proximal side than the tissue fastening tool, and a rotating mechanism that rotates the stylet around an axis when the stylet is moved toward a distal end of the needle tube. The tissue fastening tool and the stylet are disengageably engaged with each other and integrally and rotatably connected with each other. The rotating mechanism rotates the stylet in a direction opposite to the winding direction of the tissue fastening tool as seen from the proximal side.Type: ApplicationFiled: April 27, 2009Publication date: January 14, 2010Applicant: OLYMPUS MEDICAL SYSTEMS CORP.Inventors: Ayano ISHIOKA, Masatoshi SATO, Shinji TAKAHASHI, Tatsutoshi HASHIMOTO, Yusuke NOMURA, Kazushi MURAKAMI
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Patent number: 7582055Abstract: An endoscope system comprises multiple types of treatment tools including a treatment-tool insertion unit, and a function unit having a function for performing treatment; an electrically-driven operation device which electrically drives the function unit; an electrically-driven advance/retreat device which electrically drives the treatment-tool insertion unit; a control device including at least one of a control unit for outputting a control signal to the electrically-driven advance/retreat device and the electrically-driven operation device, and an operating program corresponding to a treatment tool; and an operation instructing device including a first operating instruction unit for outputting an instruction signal for placing the electrically-driven operation device and the electrically-driven advance/retreat device into a manually-driven operating state, and a second operating instruction unit for outputting an instruction signal for placing the electrically-driven operation device and the electrically-drType: GrantFiled: August 9, 2006Date of Patent: September 1, 2009Assignee: Olympus Medical Systems Corp.Inventors: Takaaki Komiya, Kazushi Murakami, Hiroaki Ichikawa, Yoshio Onuki, Yasuhito Kura, Takehiro Nishiie
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Publication number: 20090118575Abstract: An endoscopic system includes an endoscope, a cartridge, and a treatment section operation check instrument. The endoscope includes a treatment instrument channel. The cartridge stores a treatment section and a treatment instrument insertion portion introduced into the treatment instrument channel. The treatment section operation check instrument includes a chamber. The chamber contains a hollow section with the volume which allows the treatment section stored in the cartridge to perform a treatment operation. The treatment section operation check instrument is disposed between the endoscope and the cartridge so as to be allowed to perform the operation check by disposing the treatment section in the hollow section of the chamber before insertion of the treatment section into the treatment instrument channel.Type: ApplicationFiled: November 6, 2007Publication date: May 7, 2009Applicant: OLYMPUS MEDICAL SYSTEMS CORP.Inventors: Hiroaki Ichikawa, Kazushi Murakami, Takaaki Komiya, Tsutomu Okada, Yoshio Onuki, Yasuhito Kura, Kazuki Honda
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Patent number: 7524284Abstract: An endoscopy system includes: a motor-driven operating device that an operation section of an accessory is attachable to, the operating device operating the operation section in a motor-driven manner, the accessory having an accessory insertion section to be introduced into a body cavity through an insertion section of an endoscope; a motor-driven forward/backward moving device, arranged in an operation section of the endoscope, for moving the accessory insertion section forward or backward in a motor-driven manner; a control device electrically connected to the motor-driven forward/backward moving device and the motor-driven operating device, the control device including a control unit for outputting control signals to the forward/backward moving device and the operating device and a memory unit for storing one or more treatment operation programs corresponding to accessories to be mounted on the motor-driven forward/backward moving device; and an operation instructing device electrically connected to the coType: GrantFiled: February 6, 2006Date of Patent: April 28, 2009Assignee: Olympus Medical Systems Corp.Inventors: Kazushi Murakami, Takaaki Komiya, Yoshio Onuki, Takehiro Nishiie, Yasuhito Kura, Hiroaki Ichikawa
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Publication number: 20090105536Abstract: An endoscope treatment system includes: an advancing and retracing device which electromotively advances and retracts a treatment instrument insertion portion of a treatment instrument to be introduced in a treatment instrument insertion channel through a treatment instrument opening opened at a mouth ring portion of an endoscope; and a connecting tube including a tube main frame to which the treatment instrument insertion portion is inserted and an attaching portion provided at one end portion of the tube main frame, while the attaching portion is arranged at the mouth ring portion or the treatment instrument insertion portion integrally.Type: ApplicationFiled: December 1, 2008Publication date: April 23, 2009Applicant: OLYMPUS MEDICAL SYSTEMS CORP.Inventors: Kazuki Honda, Yasuhito Kura, Takehiro Nishiie, Kazushi Murakami, Yoshio Onuki, Hiroaki Ichikawa, Takaaki Komiya
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Publication number: 20090062603Abstract: A treatment instrument operation unit is provided with a drive unit, an operation portion installation section and a command signal output section. The drive unit drives an operation portion for operating each treatment section of the respective treatment instruments. The operation portion is attached to the operation portion installation section provided to the drive unit. The command signal output section outputs an installation start signal to a controller for notifying that the installation of the treatment instrument has begun upon installation of the operation portion in the operation portion installation section. After outputting the installation start signal from the command signal output section to the controller, the drive unit drives the operation portion installation section to the position where the operation portion is allowed to be installed based on the control signal outputted form the controller.Type: ApplicationFiled: September 5, 2007Publication date: March 5, 2009Applicant: OLYMPUS MEDICAL SYSTEMS CORP.Inventors: Kazushi MURAKAMI, Yoshio ONUKI, Takaaki KOMIYA, Hiroaki ICHIKAWA, Tsutomu OKADA, Kazuki HONDA, Yasuhito KURA
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Publication number: 20090030273Abstract: A medical apparatus according to the present invention includes: a flexible sheath; an arm section having a bending part capable of bending operation and a first channel capable of inserting a procedure instrument therethrough, the arm section being disposed to protrude from a tip of the sheath; and an operation stick having a second channel connected to the first channel and a bending operating part connected to the arm section by an operation-transmission member, wherein the operation stick has: a regulation section for regulating movement of the bending operating part; and a falloff-preventive section for engaging with the procedure instrument inserted in the second channel to prevent the procedure instrument from falling from the operation stick.Type: ApplicationFiled: March 28, 2008Publication date: January 29, 2009Applicant: OLYMPUS MEDICAL SYSTEMS CORP.Inventor: Kazushi Murakami
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Publication number: 20090023989Abstract: An endoscope system according to the present invention includes: an endoscope equipped with a long insertion portion; a medical instrument which includes a treating portion installed in a distal part and used to perform various treatments in a body cavity and a long sheath including a rigid portion with predetermined flexibility and a flexible portion more flexible than the rigid portion, the rigid portion and flexible portion being installed consecutively starting from a distal side, where the sheath is inserted in a channel of the insertion portion of the endoscope; an operation instruction apparatus used to give commands regarding operation of the medical instrument; a first medical instrument drive apparatus which operates the treating portion of the medical instrument; and a second medical instrument drive apparatus which moves the sheath forward and backward.Type: ApplicationFiled: August 12, 2008Publication date: January 22, 2009Applicant: OLYMPUS MEDICAL SYSTEMS CORP.Inventors: Kazuki HONDA, Kazushi MURAKAMI, Hiroaki ICHIKAWA, Takehiro NISHIIE, Yasuhito KURA, Yoshio ONUKI, Takaaki KOMIYA
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Publication number: 20090018390Abstract: A medical system according to the present invention includes: a medical instrument provided with a treatment portion for performing treatment operations on living body tissue; a treatment portion displacement mechanism for displacing the position of the treatment portion of the medical instrument; a treatment detection portion that detects whether the treatment portion is in a treatment state or a non-treatment state; and a control portion that controls displacement of the treatment portion by controlling the treatment portion displacement mechanism according to detection results from the treatment detection portion.Type: ApplicationFiled: July 9, 2007Publication date: January 15, 2009Applicant: Olympus Medical Systems Corp.Inventors: Kazuki Honda, Yasuhito Kura, Takaaki Komiya, Kazushi Murakami, Hiroaki Ichikawa, Tsutomu Okada, Yoshio Onuki
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Publication number: 20080319260Abstract: A medical device of the invention includes: a treatment instrument including a treatment portion which is used extended from a distal end of an endoscope insertion portion having a treatment instrument channel, an operation portion for operation of advancing/retreating an operation wire coupled to the treatment portion, and a treatment instrument insertion portion in which the operation wire is advanceably/retreatably inserted, the treatment instrument insertion portion having a predetermined flexibility and inserted into the treatment instrument channel; a detecting portion for detecting advancing/retreating moving amount of the treatment instrument insertion portion; a treatment portion operating device to which the operation portion is installed, the treatment portion operating device advancing/retreating the operation wire to operate the treatment portion; an operation instructing portion for instructing operation of the treatment portion; and a control device for judging a state of the treatment instrumeType: ApplicationFiled: June 22, 2007Publication date: December 25, 2008Applicant: Olympus Medical Systems Corp.Inventors: Kazushi Murakami, Yoshio Onuki, Takaaki Komiya, Hiroaki Ichikawa, Yasuhito Kura, Kazuki Honda, Takehiro Nishiie
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Publication number: 20080294003Abstract: According to the present invention, there is provided an endoscope system including: an endoscope having an elongated insertion portion; a medical instrument configured to be inserted in a channel of the insertion portion of the endoscope and to have an elongated flexible sheath; and an advancing and retracting apparatus configured to advance and retract the sheath of the medical instrument in the channel with two rollers, wherein the sheath of the medical instrument is configured to have an outer diameter larger than the distance between the roller surfaces of the two rollers, and to have a frictional resistance increasing unit for increasing frictional resistance between the respective roller surfaces and the outer peripheral surface of the sheath in contact with the respective roller surfaces in a state where the sheath is inserted between the two rollers.Type: ApplicationFiled: August 12, 2008Publication date: November 27, 2008Applicant: OLYMPUS MEDICAL SYSTEMS CORP.Inventors: Kazuki HONDA, Kazushi MURAKAMI, Hiroaki ICHIKAWA, Takehiro NISHIIE, Yasuhito KURA, Yoshio ONUKI, Takaaki KOMIYA
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Publication number: 20080287735Abstract: A medical treatment endoscope according to the present invention is provided with: a flexible sheath capable of a bending operation; an arm section protruding from the tip of the sheath and capable of a bending operation; an operation stick formed to allow a procedure instrument to pass therethrough so that the operation stick is operated by an operator in an attempt to bend the arm section; and a channel unit having a first channel which allows the procedure instrument to pass therethrough so that the channel unit is inserted through the operation stick detachably.Type: ApplicationFiled: February 22, 2008Publication date: November 20, 2008Applicant: OLYMPUS MEDICAL SYSTEMS CORP.Inventors: Shotaro Takemoto, Takumi Dejima, Kazushi Murakami