Patents by Inventor Nobuyoshi Yazawa

Nobuyoshi Yazawa 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: 8475359
    Abstract: A medical apparatus according to the present invention is a medical apparatus used in a state in which the medical apparatus is led into a body and fixed. The medical apparatus includes: a fixing section that fixes the medical apparatus on a body wall in the body; an image pickup section that picks up an image of a subject in the body and is provided pivotably around a first axis; and a holding section that includes the fixing section and holds the image pickup section pivotably around a second axis different from the first axis. Therefore, the medical apparatus can change a photographing range and a visual field direction as desired to photograph the subject by performing magnified observation and photographing the subject from different directions without using a zoom function in the state in which the medical apparatus is fixed in a limited space in the body.
    Type: Grant
    Filed: September 21, 2009
    Date of Patent: July 2, 2013
    Assignee: Olympus Medical Systems Corp.
    Inventors: Daisuke Asada, Hitoshi Karasawa, Sho Nakajima, Nobuyoshi Yazawa, Tsutomu Urakawa
  • Patent number: 8353820
    Abstract: A medical apparatus according to the present invention includes: an image pickup section including an observation window, the image pickup section being led into a body; a holding section that holds the image pickup section inside the body; a covering section that is connected to the holding section and covers the observation window to set the image pickup section in a non-photographable state; and a field-of-view control section that variably controls the covering of the observation window by the covering section and sets the image pickup section in a photographable state to allow the image pickup section to photograph a subject inside the body.
    Type: Grant
    Filed: August 5, 2009
    Date of Patent: January 15, 2013
    Assignee: Olympus Medical Systems Corp.
    Inventors: Hitoshi Karasawa, Sho Nakajima, Daisuke Asada, Nobuyoshi Yazawa
  • Patent number: 8348828
    Abstract: A medical apparatus which is introduced into a body includes an image pickup unit that picks up an image of the interior of the body, a communication cable that sends/receives a signal to/from an external device, an electric terminal section disposed at an end section of the communication cable, a drip-proof cap attached so as to cover the electric terminal section, a locking section provided at the drip-proof cap that locks a puncture needle for pulling the communication cable introduced into the body out of the body, and a dissection section provided at the drip-proof cap that dissects a body wall tissue when the cable wire is pulled out.
    Type: Grant
    Filed: July 20, 2010
    Date of Patent: January 8, 2013
    Assignee: Olympus Medical Systems Corp.
    Inventors: Daisuke Asada, Sho Nakajima, Hideaki Kinouchi, Nobuyoshi Yazawa
  • Patent number: 8314836
    Abstract: A medical apparatus of the present invention includes an image pickup apparatus provided for a medical instrument to pick up an image of a region to be examined in a body, a fixing section that keeps the image pickup apparatus indwelling in and fixed to a body wall in the body, a transmission section that extends from the image pickup apparatus and transmits a power or an electric signal to/from a device outside the body, and a shake absorption section that absorbs and suppresses shaking of the transmission section by means of a movable member connected to the transmission section and freely movable with respect to the image pickup apparatus and a holding member connected to the transmission section for holding the movable member in a freely movable manner, wherein when a treatment is applied to a subject in the body while observing the subject, the apparatus can suppress shaking of the image pickup apparatus left indwelling in the body, acquire an excellent observed image and prevent damage to a cable extend
    Type: Grant
    Filed: June 14, 2011
    Date of Patent: November 20, 2012
    Assignee: Olympus Medical Systems Corp.
    Inventors: Daisuke Asada, Sho Nakajima, Nobuyoshi Yazawa
  • Patent number: 8237782
    Abstract: A medical instrument used by being introduced into a body and fixed thereto, includes a camera body provided with a fixing section to be fixed to a body wall in the body, an image pickup section incorporated in the camera body that picks up an image of an object to be examined in the body from an observation window formed in the camera body, a contamination removing section provided by being fixed to the camera body, a transparent cover member, an outer surface of which is in contact with the contamination removing section, movably disposed on the observation window and a drive section incorporated in the camera body that drives the cover member to make a sliding contact with the contamination removing section, and can thereby easily and reliably remove deposits stuck to the observation window and obtain a clear observation image even when deposits are being removed.
    Type: Grant
    Filed: March 8, 2010
    Date of Patent: August 7, 2012
    Assignee: Olympus Medical Systems Corp.
    Inventors: Hitoshi Karasawa, Sho Nakajima, Daisuke Asada, Nobuyoshi Yazawa
  • Patent number: 8212861
    Abstract: A medical apparatus includes: an image pickup apparatus introduced and retained in a body; a retaining/fixing section which contacts a body wall in the body, for retaining and fixing the image pickup apparatus at the body wall; plural operation wires operated from an extracorporeal side; and an observation direction control section which changes an observation direction of the image pickup apparatus by operation of the plural wires, and includes: an image pickup apparatus fixing section connected to the operation wires, which contacts an outer surface part of the image pickup apparatus; and a rotary section for supporting the retaining/fixing section and the image pickup apparatus fixing section so as to be separated from each other by a predetermined distance, and allowing the image pickup apparatus fixing section to rotate with respect to the retaining/fixing section with a rotation center as a fulcrum, based on operation of the plural operation wires.
    Type: Grant
    Filed: July 7, 2011
    Date of Patent: July 3, 2012
    Assignee: Olympus Medical Systems Corp.
    Inventors: Misa Takahashi, Nobuyoshi Yazawa, Sho Nakajima
  • Publication number: 20120050511
    Abstract: A medical apparatus includes: an image pickup apparatus introduced and retained in a body; a retaining/fixing section which contacts a body wall in the body, for retaining and fixing the image pickup apparatus at the body wall; plural operation wires operated from an extracorporeal side; and an observation direction control section which changes an observation direction of the image pickup apparatus by operation of the plural wires, and includes: an image pickup apparatus fixing section connected to the operation wires, which contacts an outer surface part of the image pickup apparatus; and a rotary section for supporting the retaining/fixing section and the image pickup apparatus fixing section so as to be separated from each other by a predetermined distance, and allowing the image pickup apparatus fixing section to rotate with respect to the retaining/fixing section with a rotation center as a fulcrum, based on operation of the plural operation wires.
    Type: Application
    Filed: July 7, 2011
    Publication date: March 1, 2012
    Applicant: OLYMPUS MEDICAL SYSTEMS CORP.
    Inventors: Misa TAKAHASHI, Nobuyoshi YAZAWA, Sho NAKAJIMA
  • Publication number: 20120016198
    Abstract: A medical apparatus configured to be introduced into a body, includes: an image pickup apparatus for picking up an image in the body; a cable extended from the image pickup apparatus, and configured to transmit and receive a signal or power to and from an external device, the cable being pulled out from inside to outside the body through a body wall; an electric terminal portion disposed at an end portion of the cable, which includes an electric contact and is configured to be electrically connected to the external device; a cover body which is configured to cover at least the electric contact and to be adhered watertightly to the electric terminal portion with a predetermined strength, the cover body being grasped when the cable is pulled out from inside to outside the body; and an easy-peel portion for detaching the cover body from the electric terminal portion.
    Type: Application
    Filed: June 27, 2011
    Publication date: January 19, 2012
    Applicant: OLYMPUS MEDICAL SYSTEMS CORP.
    Inventors: Misa TAKAHASHI, Nobuyoshi YAZAWA
  • Publication number: 20110254938
    Abstract: A medical apparatus of the present invention includes an image pickup apparatus provided for a medical instrument to pick up an image of a region to be examined in a body, a fixing section that keeps the image pickup apparatus indwelling in and fixed to a body wall in the body, a transmission section that extends from the image pickup apparatus and transmits a power or an electric signal to/from a device outside the body, and a shake absorption section that absorbs and suppresses shaking of the transmission section by means of a movable member connected to the transmission section and freely movable with respect to the image pickup apparatus and a holding member connected to the transmission section for holding the movable member in a freely movable manner, wherein when a treatment is applied to a subject in the body while observing the subject, the apparatus can suppress shaking of the image pickup apparatus left indwelling in the body, acquire an excellent observed image and prevent damage to a cable extend
    Type: Application
    Filed: June 14, 2011
    Publication date: October 20, 2011
    Applicant: OLYMPUS MEDICAL SYSTEMS CORP.
    Inventors: Daisuke ASADA, Sho NAKAJIMA, Nobuyoshi YAZAWA
  • Publication number: 20110046440
    Abstract: A medical apparatus which is introduced into a body includes an image pickup unit that picks up an image of the interior of the body, a communication cable that sends/receives a signal to/from an external device, an electric terminal section disposed at an end section of the communication cable, a drip-proof cap attached so as to cover the electric terminal section, a locking section provided at the drip-proof cap that locks a puncture needle for pulling the communication cable introduced into the body out of the body, and a dissection section provided at the drip-proof cap that dissects a body wall tissue when the cable wire is pulled out.
    Type: Application
    Filed: July 20, 2010
    Publication date: February 24, 2011
    Applicant: OLYMPUS MEDICAL SYSTEMS CORP.
    Inventors: Daisuke Asada, Sho Nakajima, Hideaki Kinouchi, Nobuyoshi Yazawa
  • Publication number: 20100249503
    Abstract: By including a camera body introduced into a body, an image pickup section incorporated in the camera body for picking up an image of an object, a transparent cover member movably disposed at the camera body that always covers an image taking side of the image pickup section irrespective of a moving position, a moving section that causes the cover member to move and a cleaning section disposed outside an image pickup range of the image pickup section that performs cleaning by jetting a fluid over the opposed surface part of the cover member moved to outside the image pickup range of the image pickup section, it is possible to always obtain a clear observation image without interfering with observation even when removing fogging, deposits such as dirt.
    Type: Application
    Filed: March 19, 2010
    Publication date: September 30, 2010
    Applicant: OLYMPUS MEDICAL SYSTEMS CORP.
    Inventors: Nobuyoshi YAZAWA, Daisuke ASADA, Sho NAKAJIMA, Hitoshi KARASAWA
  • Publication number: 20100225753
    Abstract: A medical instrument used by being introduced into a body and fixed thereto, includes a camera body provided with a fixing section to be fixed to a body wall in the body, an image pickup section incorporated in the camera body that picks up an image of an object to be examined in the body from an observation window formed in the camera body, a contamination removing section provided by being fixed to the camera body, a transparent cover member, an outer surface of which is in contact with the contamination removing section, movably disposed on the observation window and a drive section incorporated in the camera body that drives the cover member to make a sliding contact with the contamination removing section, and can thereby easily and reliably remove deposits stuck to the observation window and obtain a clear observation image even when deposits are being removed.
    Type: Application
    Filed: March 8, 2010
    Publication date: September 9, 2010
    Applicant: OLYMPUS MEDICAL SYSTEMS CORP.
    Inventors: Hitoshi Karasawa, Sho Nakajima, Daisuke Asada, Nobuyoshi Yazawa
  • Publication number: 20100225754
    Abstract: A medical instrument according to the present invention is a medical instrument used by being introduced into the body and fixed therein, which includes a fixing section fixed to a body wall in the body, an image pickup section that picks up an image of an object to be examined in the body, an illumination section that illuminates the object to be examined in the body and a sheet body in which the illumination section is disposed and which is made unfoldable so as to spread with respect to the image pickup section so that an illumination region of illumination light is expanded in an image pickup region of the image pickup section and a wide range is irradiated with the illumination light, and can thereby irradiate the object to be examined whose images are taken with illumination light of sufficient brightness and luminous intensity distribution.
    Type: Application
    Filed: March 8, 2010
    Publication date: September 9, 2010
    Applicant: OLYMPUS MEDICAL SYSTEMS CORP.
    Inventors: Nobuyoshi Yazawa, Hitoshi Karasawa, Daisuke Asada, Sho Nakajima, Tsutomu Urakawa
  • Patent number: 7714885
    Abstract: An endoscope imaging apparatus includes an imaging unit in which an imaging optical unit that contains at least one optical lens in a rigid member the one end side of which is airtightly sealed is airtightly joined to an imaging element unit that contains at least one imaging element in a rigid member the one end side of which is airtightly sealed through a tubular member to which a bellows portion having an elastic force is formed.
    Type: Grant
    Filed: February 22, 2002
    Date of Patent: May 11, 2010
    Assignee: Olympus Corporation
    Inventors: Nobuyoshi Yazawa, Fuminori Tanahashi, Masami Shimizu, Takao Yamaguchi, Hiroyuki Kuroda, Satoshi Takekoshi
  • Publication number: 20100076259
    Abstract: A medical apparatus according to the present invention is a medical apparatus used in a state in which the medical apparatus is led into a body and fixed. The medical apparatus includes: a fixing section that fixes the medical apparatus on a body wall in the body; an image pickup section that picks up an image of a subject in the body and is provided pivotably around a first axis; and a holding section that includes the fixing section and holds the image pickup section pivotably around a second axis different from the first axis. Therefore, the medical apparatus can change a photographing range and a visual field direction as desired to photograph the subject by performing magnified observation and photographing the subject from different directions without using a zoom function in the state in which the medical apparatus is fixed in a limited space in the body.
    Type: Application
    Filed: September 21, 2009
    Publication date: March 25, 2010
    Applicant: OLYMPUS MEDICAL SYSTEMS CORP.
    Inventors: Daisuke Asada, Hitoshi Karasawa, Sho Nakajima, Nobuyoshi Yazawa, Tsutomu Urakawa
  • Publication number: 20100036199
    Abstract: A medical apparatus according to the present invention includes: an image pickup section including an observation window, the image pickup section being led into a body; a holding section that holds the image pickup section inside the body; a covering section that is connected to the holding section and covers the observation window to set the image pickup section in a non-photographable state; and a field-of-view control section that variably controls the covering of the observation window by the covering section and sets the image pickup section in a photographable state to allow the image pickup section to photograph a subject inside the body.
    Type: Application
    Filed: August 5, 2009
    Publication date: February 11, 2010
    Applicant: OLYMPUS MEDICAL SYSTEMS CORP.
    Inventors: Hitoshi KARASAWA, Sho NAKAJIMA, Daisuke ASADA, Nobuyoshi YAZAWA
  • Publication number: 20090322864
    Abstract: The present invention provides a medical apparatus including medical equipment to be introduced into a body, including an image pickup unit that picks up an image of an inspection target in the body, an outer casing that movably holds the image pickup unit, a fixing unit that fixes the outer casing together with the image pickup unit to an inner wall of the body in contact therewith and a field of view adjusting unit that makes the image pickup unit movable with respect to the outer casing and adjusts the direction of a field of view of the image pickup unit, and can thereby realize a small medical apparatus and equipment capable of performing low-invasive surgical operation without increasing burden on patients, easily adjusting the direction of the field of view while being fixed and kept in the body and improving viewability of the inspection target.
    Type: Application
    Filed: June 30, 2009
    Publication date: December 31, 2009
    Applicant: OLYMPUS MEDICAL SYSTEMS CORP.
    Inventors: Hitoshi KARASAWA, Daisuke ASADA, Nobuyoshi YAZAWA
  • Publication number: 20090306470
    Abstract: A medical apparatus of the present invention includes a medical device configured to be introduced into a body, and the medical apparatus further includes: an image pickup portion which is provided in the medical device and picks up an image of a subject to be examined in the body; a securing portion configured to secure the medical device to a wall in the body; and a grasping unit which is arranged in parallel to the image pickup portion, incorporates at least one assistance apparatus that assists the image pickup, and is configured to be grasped when the medical apparatus is introduced and retracted in and out of the body.
    Type: Application
    Filed: June 8, 2009
    Publication date: December 10, 2009
    Applicant: OLYMPUS MEDICAL SYSTEMS CORP.
    Inventors: Hitoshi KARASAWA, Nobuyoshi YAZAWA, Sho NAKAJIMA, Tsutomu URAKAWA, Daisuke ASADA
  • Publication number: 20050283139
    Abstract: According to the present invention, a surgical therapeutic instrument includes an insertion unit, a treating unit that is arranged at one end of the insertion unit to be extended in the extending direction at a predetermined angle to the axial direction of the insertion unit, and an operation unit that is arranged at the other end of the insertion unit. The operation unit includes a rotating operation unit to rotate the treating unit, and an opening/closing operation unit to open/close the treating unit. The treating unit includes two pinching members having planar portions, is rotatable in accordance with the rotating operation, and can move at least one of the two pinching members in the direction substantially orthogonal to the plane of the planar portion in accordance with the opening/closing operation.
    Type: Application
    Filed: July 22, 2005
    Publication date: December 22, 2005
    Applicant: Olympus Corporation
    Inventors: Shuhei Iizuka, Takahiro Kogasaka, Kazunori Taniguchi, Toru Nagase, Nobuyoshi Yazawa, Hideyuki Kasahara, Seiji Maeda, Kazuo Banju, Akira Murata
  • Publication number: 20030169333
    Abstract: An endoscope imaging apparatus includes an imaging unit in which an imaging optical unit that contains at least one optical lens in a rigid member the one end side of which is airtightly sealed is airtightly joined to an imaging element unit that contains at least one imaging element in a rigid member the one end side of which is airtightly sealed through a tubular member to which a bellows portion having an elastic force is formed.
    Type: Application
    Filed: February 22, 2002
    Publication date: September 11, 2003
    Applicant: Olympus Optical Co., Ltd.
    Inventors: Nobuyoshi Yazawa, Fuminori Tanahashi, Masami Shimizu, Takao Yamaguchi, Hiroyuki Kuroda, Satoshi Takekoshi