Patents by Inventor Raifu Matsui

Raifu Matsui 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).

  • Patent number: 8403827
    Abstract: An endoscopic insertion aid includes a tube member, a pipeline and a plurality of balloons. The tube member allows an insertion section of an endoscope to be inserted therethrough, and guides the longitudinal movement of the insertion section. The pipeline is provided in the tube member, and communicates with a supply/discharge unit to supply a fluid to or discharge the fluid from the distal end of the tube member. The balloons are disposed on the outer periphery of the distal end of the tube member longitudinally along the tube member, communicate with the pipeline, and inflate/deflate in accordance with the supply/discharge of the fluid via the pipeline. The balloon disposed on the distal side of the tube member is inflated to have an outside diameter larger than that of the balloon disposed closer to the proximal side than the balloon disposed on the distal side when the balloons are inflated.
    Type: Grant
    Filed: July 18, 2007
    Date of Patent: March 26, 2013
    Assignee: Olympus Medical Systems Corp.
    Inventors: Raifu Matsui, Nobuyuki Matsuura, Seisuke Takase, Hidenobu Kimura, Takatoshi Yoshida
  • Patent number: 8221306
    Abstract: In an endoscope therapeutic device having a plurality of introduction guide tubes for introducing a treatment tool into a body cavity, the introduction guide tubes are mutually joined at a position more proximal than bending portions thereof. Accordingly, the effects caused by the movement of the plurality of the introduction guide tubes are mutually invalidated at a joint portion as a fulcrum, so that the position of the introduction guide tube is relatively stabilized in the body cavity. As joining methods, there are integration, usage of a joint tool, and usage of an over tube. The operability is improved when the introduction guide tube is provided at the distal end thereof with a mechanism for retaining and/or rotating a distal end of a treatment tool inserted therethrough.
    Type: Grant
    Filed: November 4, 2009
    Date of Patent: July 17, 2012
    Assignee: Olympus Corporation
    Inventors: Yuta Okada, Ryuta Sekine, Raifu Matsui
  • Patent number: 8021376
    Abstract: An endoscopic treatment device is used with an endoscope. This treatment device includes a transmission member with a flexible structure having a distal end portion to be inserted into a body and can be operated outside the body, a push rod coupled to the distal end portion, and first and second connecting members rotatably coupled to the push rod. The treatment device further includes first and second arm members rotatably coupled to the distal end portion of the connecting member, a holding member rotatably holding the respective arm at a predetermined interval therebetween, and first and second actuating members integrally formed with the arm members and can open/close when the transmission member actuates the first and second connecting members and the first and second arm members through the push rod. This device also includes a needle mounted on at least one of the first and second actuating members.
    Type: Grant
    Filed: January 17, 2008
    Date of Patent: September 20, 2011
    Assignee: Apollo Endosurgery, Inc.
    Inventors: Shotaro Takemoto, Tetsuya Yamamoto, Koichi Kawashima, Sydney Sheung Chee Chung, Raifu Matsui
  • Patent number: 8016840
    Abstract: An endoscopic treatment device is used with an endoscope. This treatment device includes a transmission member with a flexible structure having a distal end portion to be inserted into a body and can be operated outside the body, a push rod coupled to the distal end portion, and first and second connecting members rotatably coupled to the push rod. The treatment device further includes first and second arm members rotatably coupled to the distal end portion of the connecting member, a holding member rotatably holding the respective arm at a predetermined interval therebetween, and first and second actuating members integrally formed with the arm members and can open/close when the transmission member actuates the first and second connecting members and the first and second arm members through the push rod. This device also includes a needle mounted on at least one of the first and second actuating members.
    Type: Grant
    Filed: January 17, 2008
    Date of Patent: September 13, 2011
    Assignees: Olympus Corporation, Apollo Endosurgery, Inc.
    Inventors: Shotaro Takemoto, Tetsuya Yamamoto, Koichi Kawashima, Sydney Sheung Chee Chung, Raifu Matsui
  • Publication number: 20110092770
    Abstract: An endoscopic insertion aid includes a tube member, a pipeline and a plurality of balloons. The tube member allows an insertion section of an endoscope to be inserted therethrough, and guides the longitudinal movement of the insertion section. The pipeline is provided in the tube member, and communicates with a supply/discharge unit to supply a fluid to or discharge the fluid from the distal end of the tube member. The balloons are disposed on the outer periphery of the distal end of the tube member longitudinally along the tube member, communicate with the pipeline, and inflate/deflate in accordance with the supply/discharge of the fluid via the pipeline. The balloon disposed on the distal side of the tube member is inflated to have an outside diameter larger than that of the balloon disposed closer to the proximal side than the balloon disposed on the distal side when the balloons are inflated.
    Type: Application
    Filed: December 21, 2010
    Publication date: April 21, 2011
    Inventors: Raifu MATSUI, Nobuyuki Matsuura, Seisuke Takase, Hidenobu Kimura, Takatoshi Yoshida
  • Publication number: 20100048992
    Abstract: In an endoscope therapeutic device having a plurality of introduction guide tubes for introducing a treatment tool into a body cavity, the introduction guide tubes are mutually joined at a position more proximal than bending portions thereof. Accordingly, the effects caused by the movement of the plurality of the introduction guide tubes are mutually invalidated at a joint portion as a fulcrum, so that the position of the introduction guide tube is relatively stabilized in the body cavity. As joining methods, there are integration, usage of a joint tool, and usage of an over tube. The operability is improved when the introduction guide tube is provided at the distal end thereof with a mechanism for retaining and/or rotating a distal end of a treatment tool inserted therethrough.
    Type: Application
    Filed: November 4, 2009
    Publication date: February 25, 2010
    Applicant: OLYMPUS CORPORATION
    Inventors: Yuta Okada, Ryuta Sekine, Raifu Matsui
  • Publication number: 20090234188
    Abstract: A medical apparatus includes a hollow member whose inner surface parts are configured to be brought into contact with each other through deformation of the hollow member and the hollow member includes a convex and concave portion formed on the inner surface parts configured to be brought into contact with each other.
    Type: Application
    Filed: May 21, 2009
    Publication date: September 17, 2009
    Applicant: OLYMPUS MEDICAL SYSTEMS CORP.
    Inventors: Nobuyuki MATSUURA, Raifu MATSUI
  • Patent number: 7530985
    Abstract: An endoscopic treatment device is used with an endoscope. This treatment device includes a transmission member with a flexible structure having a distal end portion to be inserted into a body and can be operated outside the body, a push rod coupled to the distal end portion, and first and second connecting members rotatably coupled to the push rod. The treatment device further includes first and second arm members rotatably coupled to the distal end portion of the connecting member, a holding member rotatably holding the respective arm at a predetermined interval therebetween, and first and second actuating members integrally formed with the arm members and can open/close when the transmission member actuates the first and second connecting members and the first and second arm members through the push rod. This device also includes a needle mounted on at least one of the first and second actuating members.
    Type: Grant
    Filed: October 5, 2004
    Date of Patent: May 12, 2009
    Assignee: Olympus Corporation
    Inventors: Shotaro Takemoto, Tetsuya Yamamoto, Koichi Kawashima, Sydney Sheung Chee Chung, Raifu Matsui, Takayasu Mikkaichi, Satoshi Miyamoto, Masayuki Iwasaka
  • Publication number: 20080114379
    Abstract: An endoscopic treatment device is used with an endoscope. This treatment device includes a transmission member with a flexible structure having a distal end portion to be inserted into a body and can be operated outside the body, a push rod coupled to the distal end portion, and first and second connecting members rotatably coupled to the push rod. The treatment device further includes first and second arm members rotatably coupled to the distal end portion of the connecting member, a holding member rotatably holding the respective arm at a predetermined interval therebetween, and first and second actuating members integrally formed with the arm members and can open/close when the transmission member actuates the first and second connecting members and the first and second arm members through the push rod. This device also includes a needle mounted on at least one of the first and second actuating members.
    Type: Application
    Filed: January 17, 2008
    Publication date: May 15, 2008
    Applicant: OLYMPUS CORPORATION
    Inventors: Shotaro Takemoto, Tetsuya Yamamoto, Koichi Kawashima, Sydney Chung, Raifu Matsui
  • Publication number: 20080114380
    Abstract: An endoscopic treatment device is used with an endoscope. This treatment device includes a transmission member with a flexible structure having a distal end portion to be inserted into a body and can be operated outside the body, a push rod coupled to the distal end portion, and first and second connecting members rotatably coupled to the push rod. The treatment device further includes first and second arm members rotatably coupled to the distal end portion of the connecting member, a holding member rotatably holding the respective arm at a predetermined interval therebetween, and first and second actuating members integrally formed with the arm members and can open/close when the transmission member actuates the first and second connecting members and the first and second arm members through the push rod. This device also includes a needle mounted on at least one of the first and second actuating members.
    Type: Application
    Filed: January 17, 2008
    Publication date: May 15, 2008
    Applicant: OLYMPUS CORPORATION
    Inventors: Shotaro Takemoto, Tetsuya Yamamoto, Koichi Kawashima, Sydney Chung, Raifu Matsui
  • Patent number: 7344545
    Abstract: An endoscopic treatment device is used with an endoscope. This treatment device includes a transmission member with a flexible structure having a distal end portion to be inserted into a body and can be operated outside the body, a push rod coupled to the distal end portion, and first and second connecting members rotatably coupled to the push rod. The treatment device further includes first and second arm members rotatably coupled to the distal end portion of the connecting member, a holding member rotatably holding the respective arm at a predetermined interval therebetween, and first and second actuating members integrally formed with the arm members and can open/close when the transmission member actuates the first and second connecting members and the first and second arm members through the push rod. This device also includes a needle mounted on at least one of the first and second actuating members.
    Type: Grant
    Filed: December 1, 2003
    Date of Patent: March 18, 2008
    Assignee: Olympus Corporation
    Inventors: Shotaro Takemoto, Tetsuya Yamamoto, Koichi Kawashima, Sydney Sheung Chee Chung, Raifu Matsui
  • Patent number: 7341554
    Abstract: An endoscopic treatment system is designed to suture or resect a lesion while ensuring the ease of insertion into a deep region in the large intestine. The endoscopic treatment system comprises an endoscope and a therapeutic instruments insertion aid into which the endoscope is inserted. The endoscopic treatment system further comprises: a pair of clamp forceps that clamps and lifts a living-body tissue; a lateral hole formed in the therapeutic instruments insertion aid and used to control the position of the living-body tissue clamped and lifted by the pair of clamp forceps or to control the lifting thereof; a ligature used to ligate the living-body tissue whose position or lifting is controlled by the lateral hole; and a cutter used to resect the living-body tissue at a position between a region ligated with the ligature and a region clamped and lifted with the pair of clamp forceps.
    Type: Grant
    Filed: August 5, 2003
    Date of Patent: March 11, 2008
    Assignee: Olympus Corporation
    Inventors: Ryuta Sekine, Raifu Matsui, Yuta Okada
  • Publication number: 20080033244
    Abstract: An endoscopic insertion aid includes a hollow member having a communication path which provides communication between openings at the distal and proximal ends thereof. The hollow member includes a hollow member, an exposure portion and a guide portion. The hollow member insertion portion is inserted into a body cavity, having distal and proximal ends. The exposure portion is provided at the proximal end of the hollow member insertion portion and is exposed outside the body. The guide portion is provided in at least the exposure portion of the hollow member insertion portion and the exposure portion. The guide portion allows a distal end of an insertion section of an endoscope to pass through the communication path laterally from the hollow member and project from the opening at the distal end of the hollow member.
    Type: Application
    Filed: July 18, 2007
    Publication date: February 7, 2008
    Inventors: Raifu Matsui, Nobuyuki Matsuura, Seisuke Takase, Hidenobu Kimura, Takatoshi Yoshida
  • Publication number: 20080033246
    Abstract: An endoscopic insertion aid includes a tube member, a pipeline and a plurality of balloons. The tube member allows an insertion section of an endoscope to be inserted therethrough, and guides the longitudinal movement of the insertion section. The pipeline is provided in the tube member, and communicates with a supply/discharge unit to supply a fluid to or discharge the fluid from the distal end of the tube member. The balloons are disposed on the outer periphery of the distal end of the tube member longitudinally along the tube member, communicate with the pipeline, and inflate/deflate in accordance with the supply/discharge of the fluid via the pipeline. The balloon disposed on the distal side of the tube member is inflated to have an outside diameter larger than that of the balloon disposed closer to the proximal side than the balloon disposed on the distal side when the balloons are inflated.
    Type: Application
    Filed: July 18, 2007
    Publication date: February 7, 2008
    Inventors: Raifu Matsui, Nobuyuki Matsuura, Seisuke Takase, Hidenobu Kimura, Takatoshi Yoshida
  • Publication number: 20080027282
    Abstract: A fluid-supplying/discharging system for use in medical devices includes a supplying/discharging device and a tubular-path-resistance changing mechanism. The supplying/discharging device includes a pump capable of supplying and discharging fluid, a tubular path having two ends, connected at one end to the pump and at the other end to a medical device, and a control device connected to the pump and configured to control the supplying and discharging of the fluid to and from the pump. The tubular-path-resistance changing mechanism changes resistance to the fluid flowing through the tubular path.
    Type: Application
    Filed: July 18, 2007
    Publication date: January 31, 2008
    Inventors: Raifu Matsui, Nobuyuki Matsuura, Seisuke Takase, Hidenobu Kimura, Takatoshi Yoshida
  • Publication number: 20080027283
    Abstract: An endoscope system for retrieving a capsule endoscope includes an endoscope and a receptacle. The endoscope includes an insertion section having a distal end and a proximal end and configured to be inserted into a body cavity of a patient, and an operation section arranged at the proximal end of the insertion section. The receptacle is provided in the distal end of the insertion section of the endoscope and configured to hold the capsule endoscope in order to retrieve the same.
    Type: Application
    Filed: July 23, 2007
    Publication date: January 31, 2008
    Inventors: Raifu MATSUI, Nobuyuki MATSUURA, Seisuke TAKASE, Hidenobu KIMURA, Takatoshi YOSHIDA
  • Publication number: 20070142706
    Abstract: An overtube for an endoscope includes a tube body, a balloon, a first-communication-path, a second-communication-path, a first-mouthpiece, a second-mouthpiece, a first-connection-section which is provided on the first-mouthpiece, and a second-connection-section which is provided on the second-mouthpiece. The balloon is dilatably/deflatably provided on the tube body. The first-communication-path extends from a distal-end-portion toward a proximal-end-portion of the tube body in a state in which the first-communication-path communicates with the balloon. The second-communication-path extends from a hollow-portion toward the proximal-end-portion of the tube body. The first-mouthpiece projects from the tube body and includes a path communicating with the first-communication-path. The second-mouthpiece projects from the tube body and includes a path communicating with the second-communication-path.
    Type: Application
    Filed: November 28, 2006
    Publication date: June 21, 2007
    Inventors: Raifu Matsui, Nobuyuki Matsuura
  • Publication number: 20060253128
    Abstract: When a living tissue of a ligation target is ligated by means of a snare wire, the snare wire is brought into contact with the living tissue of a ligation target, on a large contact face by means for preventing living tissue cut-in of a ligation target of at least one of a distal end chip and a rear end ring of a loop section of the snare wire, thereby preventing the living tissue of a ligation target from cutting into a contact face of at least one of the distal end chip and rear end ring of the loop section.
    Type: Application
    Filed: March 15, 2006
    Publication date: November 9, 2006
    Applicant: OLYMPUS CORPORATION
    Inventors: Ryuta Sekine, Akira Suzuki, Raifu Matsui, Yuta Okada, Kensei Nakahashi
  • Publication number: 20050267335
    Abstract: The present invention is an endoscope apparatus including an endoscope comprising an observation optical system in which the angle of observable field of view for observing a therapeutic tool can be changed and an operating mechanism for changing the observable field of view; and an insertion guide tube for guiding the therapeutic tool into a body cavity, wherein the insertion guide tube is detachably positioned and supported in a predetermined position relative to the endoscope. With this apparatus, the therapeutic tool can be observed in an optimal observing state irrespective of whether the area to be observed is located near or far from a distal end of the endoscope.
    Type: Application
    Filed: May 18, 2005
    Publication date: December 1, 2005
    Applicant: OLYMPUS CORPORATION
    Inventors: Yuta Okada, Ryuta Sekine, Raifu Matsui
  • Publication number: 20050261711
    Abstract: According to a treatment method of the present invention, an anterior wall of stomach and a posterior wall of stomach are pulled to each other, and a part of an inner surface of the anterior wall and a part of an inner surface of the posterior wall are joined to each other to extend an esophagus. A false esophagus is thereby formed. A part of a peritoneal cavity side of a fundus of stomach is made to perorally approach a part of a peritoneal cavity side of the false esophagus. The part of the fundus of stomach and the part of the false esophagus are perorally fixed to each other.
    Type: Application
    Filed: May 24, 2004
    Publication date: November 24, 2005
    Applicant: Olympus Corporation
    Inventors: Yuta Okada, Keita Suzuki, Satoshi Miyamoto, Takayasu Mikkaichi, Raifu Matsui