| OLYMPUS MEDICAL SYSTEMS CORPORATION Patent applications |
| Patent application number | Title | Published |
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| 20120035606 | Body Tissue Incision Apparatus - The body tissue harvesting instrument is provided with a cutter which is disposed at the distal end of an insertion member that is inserted into the body to sever tissue inside the body. The cutter includes a slit that extends from the distal end toward the base end; a first high-frequency electrode disposed along the two side edges of the slit on the outer surface of the cutter body and a second high-frequency electrode disposed at the base end of the slit; and a mechanism which is disposed on both sides of the distal end of the slit in the projection of the cutter body which rotates as a result of being pressed by the tissue, and which feeds the tissue toward the interior of the slit. Parts located on both sides of the distal end of the slit in the projection may mutually separate in the thickness direction. | 02-09-2012 |
| 20100292533 | Endoscopic Cutter with Reconfigurable Guides - A bipolar cutter has a cutter main body for inserting into the interior of a body and a treating electrode that is positioned against an object of examination (such as a blood vessel or a bleeding site) to be electrically cut and cauterized. A guiding member guides the object of examination toward the treating electrode as it is displaced in the axial direction of the cutter main body. The guiding member is comprised of a pair of protruding members and a notched groove or gap that leads to the treating electrode while in a first configuration. A gap adjusting mechanism causes the guiding member or the treating electrode to be displaced in the axial direction to reduce or eliminate the length of the gap so that the treating electrode can better reach flat tissue surfaces for treatment. | 11-18-2010 |
| 20100292532 | Endoscopic Vessel Dissector With Side Entry - A blunt dissector for endoscopic vein harvesting has a generally-cylindrical sheath for retaining an elongated endoscope. The sheath is elongated between a distal end and a proximal end. A transparent tip is disposed at the distal end of the sheath. A handle is disposed at the proximal end of the sheath. The sheath includes a selectably closable longitudinal slot having an opened configuration such that the endoscope can be inserted radially into the sheath. The longitudinal slot has a closed configuration that retains the endoscope within the sheath and presents a substantially smooth outer surface for use during dissection. | 11-18-2010 |
| 20100004512 | COUPLING AND ENDOSCOPE SYSTEM HAVING THE SAME - An object is to provide a coupling that prevents connection failure of a scope and a light source device and that is compatible with existing scopes as well as to provide an endoscope system having the same. A coupling employed includes a columnar plug and a socket into which the plug is inserted and connected. The plug has engaging projections that are radially projected from and retracted into an outer circumferential surface thereof. The socket has a connection surface to which an end surface of the plug is abutted, a pressing member having a through-hole that is slightly larger than the outside diameter of the plug, a coil spring that urges the pressing member along an insertion direction of the plug toward the connection surface, and stopper members that stop the pressing member so as to push it in a direction opposite to a direction toward the connection surface until the engaging projections pass through the through-hole in the pressing member. The stopper members stop pushing the pressing member after the engaging projections pass through the through-hole in the pressing member. | 01-07-2010 |
| 20090312628 | BIOLOGICAL OBSERVATION APPARATUS AND METHOD - A biological observation apparatus according to an aspect of the present invention includes a sound wave radiating unit that radiates a sound wave into an object to be examined, a light radiating unit that radiates first light having a predetermined wavelength and second light different from the first light into a portion of the object influenced by the sound wave, a detector that detects reflected light of the first light and reflected light of the second light, and a calculation unit that calculates lo characteristic information of the object based on the reflected light of the first light and the reflected light of the second light. | 12-17-2009 |
| 20090306699 | Blunt Dissector for Separating Blood Vessels from Surrounding Tissue - A blunt dissector for separating a blood vessel from surrounding tissues in a body comprises a longitudinal rod having a proximal end, a distal end, and an internal passage for conducting insufflation gas between the proximal and distal ends. An interior sleeve is mounted within the longitudinal rod for receiving an endoscope at the proximal end. A transparent tip is mounted to the distal end of the longitudinal rod. A handle is mounted to the proximal end of the longitudinal rod. The longitudinal rod has an outer surface along substantially all of the longitudinal rod between the proximal and distal ends consisting essentially of a fluoropolymer. | 12-10-2009 |
| 20090306541 | Body Tissue Incision Apparatus - The body tissue harvesting instrument is provided with a cutter which is disposed at the distal end of an insertion member that is inserted into the body of an organism, and which severs tissue inside the body. The cutter includes: a cutter body which projects from the distal end, and which includes a slit that extends from the distal end toward the base end; a first high-frequency electrode disposed along the two side edges of the slit on the outer surface of the cutter body and a second high-frequency electrode disposed at the base end of the slit; and a mechanism which is disposed on both sides of the distal end of the slit in the projection of the cutter body, which rotates as a result of being pressed by the tissue, and which feeds the tissue toward the interior of the slit. In addition, the parts located on both sides of the distal end of the slit in the projection mutually separate in the thickness direction of the slit. Moreover, the second electrode is capable of moving between the base end and distal end of the slit in the cutter body; and the width of the distal end of the slit is set larger than the width of the base end. It is possible to provide a holder—which holds the tissue so that it is able to freely move along it—at the distal end of the insertion member, and the holder includes a tissue holding frame which has two arms which extend in the width direction of the slit at both the distal end part and proximal end part relative to the distal end, and which face each other in the extension direction of the slit. The two arms mutually diverge in the thickness direction. | 12-10-2009 |
| 20090221911 | BIOLOGICAL OBSERVATION APPARATUS AND METHOD - A biological observation apparatus according to the present invention includes a sound wave radiating unit that radiates a sound wave into an object to be examined in living tissue, a light radiating unit that radiates light into the object, a light interfering unit that makes the light radiated from the light radiating unit interfere with light reflected from an area where the sound wave reaches and radiates interference light, a light detector that detects the interference light radiated from the light interfering unit and outputs an interference signal corresponding to the interference light, and a calculation unit that calculates the amount of frequency modulation of the radiated light based on the interference signal outputted from the light detector and calculates a difference value between the two adjacent amounts of frequency modulation in sequence. | 09-03-2009 |
| 20090154784 | BIOLOGICAL OBSERVATION APPARATUS AND METHOD FOR OBTAINING INFORMATION INDICATIVE OF INTERNAL STATE OF AN OBJECT USING SOUND WAVE AND LIGHT - A biological observation apparatus comprises a sound wave radiating unit that radiates a sound wave into an object, a control unit that controls radiation of the sound wave, a light radiating unit that radiates light into the object while successively changing a wavelength thereof, a light receiving unit that receives object light generated when the radiated light is reflected at an area inside the object, a light detector that obtains first interference light caused by interference between the radiated light and first object light received when the sound wave is not radiated and obtains second interference light caused by interference between the radiated light and second object light received when the sound wave is radiated, and a calculation unit that calculates information, indicative of a scattered state of the radiated light, of an area where the sound wave is radiated, based on the first and the second interference light. | 06-18-2009 |
| 20090090398 | ENDOSCOPE WASHER DISINFECTOR EQUIPPED WITH NOZZLE CONNECTABLE TO ENDOSCOPIC CHANNELS AUTOMATICALLY - In an endoscope washer disinfector, a bath comprises a mounting plane on which an endoscope with a duct is mounted and a wall member. A connector has two ends consisting of one end located to penetrate through the wall member and to be secured watertightly to the wall member. The one end faces an opening of the duct of the endoscope mounted in the bath. The other end is connected to a fluid source storing fluid for washing and disinfecting the endoscope. A nozzle is movable in the connector along an inner passage thereof and moved toward the one end of the connector to protrude from the one end to realize a watertight and detachable connection with the opening of the duct. The fluid is supplied to the duct when the fluid is supplied from the fluid source. | 04-09-2009 |
| 20090069687 | MEDICAL APPARATUS FOR OBTAINING INFORMATION INDICATIVE OF INTERNAL STATE OF AN OBJECT BASED ON PHYSICAL INTERACTION BETWEEN ULTRASOUND WAVE AND LIGHT - A medical apparatus comprises a sound-wave radiating member and a light radiating member. The sound-wave radiating member radiates ultrasound wave into an object, the ultrasound wave having a plurality of frequency components different from each other. The light radiating member radiates light into a region within the object, the ultrasound wave being already radiated into the region. Thus, the light reflects and scatters at depth-directional higher-density local portions of the object, which are caused by the ultrasound wave inside the object. Further, the apparatus comprises a light receiving member receiving light reflected in the region in response to the radiated light. In this apparatus, information indicative of a reflected (and scattered) state of the radiated light in the region is calculated based on the received light and the radiated ultrasound wave. For example, the ultrasound wave being radiated increases its frequency over time. | 03-12-2009 |
| 20090048489 | MEDICAL APPARATUS OBTAINING INFORMATION INDICATIVE OF INTERNAL STATE OF AN OBJECT BASED ON INTERACTION BETWEEN ULTRASOUND WAVES AND LIGHT - In a medical apparatus, an ultrasound generator generates ultrasound waves to be radiated into the region, and an ultrasound radiating-direction changing member changes in the region a radiating direction of the ultrasound waves to be generated by the ultrasound generator. An ultrasound converging member converges in the region the ultrasound waves subjected to the change of the radiating direction. Light which is reachable to the region is emitted from a light source unit. A light transmitting/receiving member radiates light emitted from the light source unit and receives light reflected in a converged region of the ultrasound waves in the region. Based on the reflected light, information showing the internal state in a desired deeper region in the membrana mucosa of the body tissue of the object. | 02-19-2009 |
| 20090043156 | MEDICAL APPARATUS OBTAINING INFORMATION INDICATIVE OF INTERNAL STATE OF AN OBJECT BASED ON INTERACTION BETWEEN ULTRASOUND WAVES AND LIGHT - A biological observation system is provided, which is mounted in en endoscope so as to acquire information indicating the internal state of a body tissue of an object using the interaction between ultrasound waves and light. The endoscope is equipped with an ultrasound generating member, a light transmitting/receiving member, and a moving member. The ultrasound generating member generates ultrasound waves toward a region to be examined of an object. The light transmitting/receiving member radiates light from a light source toward the region to be examined and receives light reflected by a region of the ultrasound waves within the region to be examined. The moving member spatially moves both the ultrasound generating member and the light transmitting/receiving member together as a unitary member. | 02-12-2009 |
| 20080295277 | ENDOSCOPE WASHER DISINFECTOR AND BRUSH CASSETTE WITH A WASHING BRUSH USED FOR WASH AND DISINFECTION - A brush cassette is detachably loaded to an endoscope washer disinfector for washing and disinfecting an endoscopic duct of an endoscope. The brush cassette comprises a washing brush, a chamber accommodating the washing brush, and a brush delivery duct that allows the washing brush to pass therethrough toward the duct of the endoscope. Further the brush cassette comprises a fluid supply duct that allows a chemical to pass therethrough toward the chamber; a drive member used for moving back and forth the washing brush between the chamber and the duct via the brush delivery duct; a means that prevents air from accumulating in the chamber; and a remaining-fluid discharge duct that allows the chemical remaining in the chamber to be discharged outside therethrough. The preventing means is a duct discharging the air or a deflection member deflecting is the chemical toward a region in which the air is to accumulate. | 12-04-2008 |
| 20080283095 | ENDOSCOPE WASHER DISINFECTOR WITH CHEMICAL TANKS - An endoscope washer disinfector comprises a chemical cassette, a loading unit, and a chemical tank. The chemical cassette is charged with a chemical. This chemical cassette has a delivery port to deliver the chemical therethrough. The loading unit allows the chemical cassette to be detachably loaded thereto and is formed to deliver the chemical in the chemical cassette when the chemical cassette is loaded. The loading unit comprises a blade used to forcibly open the delivery port and to sense whether or not the chemical is delivered to the chemical tank via the opened delivery port. The chemical tank stores the chemical delivered from the chemical cassette loaded to the loading unit. | 11-20-2008 |
| 20080281189 | MEDICAL GUIDING SYSTEM - A medical guiding system of the invention includes: a detection portion for detecting at least one of position and orientation of a medical instrument; a storage portion for storing multiple reference image data obtained from a human body in multiple states and including anatomical positional information of at least one of viscus and organ; a state selection portion for selecting, among the stored reference image data, the reference image data obtained in a state coincident with or approximate to a state of the subject in using the medical instrument; and a guide image creation portion for creating a guide image showing at least one of an anatomical position, shape, and orientation of the medical instrument with respect to the subject, based on at least one of the position and the orientation of the medical instrument detected by the detection portion and reference image data stored in the state selection portion. | 11-13-2008 |
| 20080262315 | Inspection method with endoscope - An endoscopic inspection method includes staining step and super magnified observation step. In the staining step, a distal end surface of a distal end portion of an endoscope which includes a distal end opening of a channel and a first lens that forms a super high-power observation optical system is held in contact with the tissue surface of the observation subject region such that the staining fluid supplied via the channel penetrates to the gap between the distal end surface and the tissue surface to eliminate the mucus on the tissue surface. The tissue surface having the mucus eliminated is stained with the staining fluid. In the super magnified observation step, the first lens which forms the super high-power observation optical system provided at the distal end portion is brought into contact with the tissue surface that has been stained with the staining fluid such that the observation at the cellular level is performed. | 10-23-2008 |
| 20080249358 | Therapeutic method and therapeutic system that use overtube with balloons - An overtube comprises a flexible tubular portion in which an insertion channel is formed. An endoscope is inserted through the insertion channel. A plurality of balloons are loaded at plural positions on an outer surface of the flexible tubular portion. Specially, the balloons are expanded and shrunk selectively every use pattern, and the positions are different from each other in an axial direction of the flexible tubular portion and set to be fixed to an inner wall of either a body cavity or a tubular cavity of an object being examined at mutually different positions of the inner wall by expanding the balloons. | 10-09-2008 |
| 20080249356 | Therapeutic method and endoscopic system that use overtube - With a first endoscope inserted through an overtube, the overtube is orally inserted into an object being examined, and a distal end portion of an insertion tube of the first endoscope is made to advance, within the object, from a jejunum via a jejunum-to-jejunum anastomosed portion and a jejunum-anastomosed bent portion so that the distal end portion is located adjacently to a Vater's papilla of a duodenum. The overtube is then sent to a position which is adjacent to the Vater's papilla along the insertion tube of the first endoscope. After this, the first endoscope is pulled from the overtube. A second endoscope is then inserted into the overtube to make a distal end portion of its insertion tube protrude from the distal end of the overtube and is located adjacently to the Vater's papilla. The second endoscope thus-approached is used to treat the Vater's papilla and the tissue therearound. | 10-09-2008 |
| 20080214890 | Therapeutic method and therapeutic system used with steps for approaching to lesion using overtube - A therapeutic system is provided, which is preferable to a treatment of pancreatic duct and biliary duct for Roux-en-Y gastrectomy patient. The therapeutic system is provided with a catheter equipped with an imaging device outputting a signal in reply to imaging, an overtube to be inserted into inside a patient, and a display displaying images based on the signal outputted from the imaging device. The overtube has an inserting channel into which the catheter is inserted, a therapeutic instrument channel into which a therapeutic instrument is inserted, an elevating base formed in an opening located at a distal end of, at least, the therapeutic-instrument channel, and an operation device to operate the elevating base. The elevating base is formed to allow a distal end portion of the therapeutic instrument to be mounted on the elevating base to elevate the distal end portion. | 09-04-2008 |
| 20080208220 | Suture instrument - A suture instrument according to the present invention includes a suture tool having an anchor anchored to a biological tissue, a suture thread drawn out of the anchor, and a stopper disposed on the suture thread; a hollow puncture needle, which can house the anchor thereinside, having a hard needle portion formed with an opening at the distal end thereof; a pusher which is disposed to advance and retreat in the puncture needle and a proximal side of which extends to a proximal side with its distal end being in contact with the anchor; and an outer sheath which houses the puncture needle so as to advance and retreat, in which an engaging portion, which is detachably engaged with the suture thread which is drawn in a state where the anchor is housed in the puncture needle, is disposed in the puncture needle or in the pusher. | 08-28-2008 |
| 20080208219 | Endoscopic treatment instrument - An endoscopic treatment instrument is provided which includes: a flexible sheath; a wire disposed inside the sheath so as to advance and retreat; a restriction member which restricts a movement of the wire in the sheath to a proximal side; an operating portion connected to a proximal end of the sheath; a wire operating portion which is connected to a proximal end of the wire and disposed to advance and retreat relative to the operating portion; a resilient member which has a first end and a second end and of which the first end is connected to the wire operating portion to expand and contract between the second end; a movable member which is connected to the second end so as to be movable relative to the operating portion; and a control member which is disposed in the movable member and which switches the movable member between a movable state and a fixed state relative to the operating portion. | 08-28-2008 |
| 20080200756 | Medical system and endoscope system - A medical system includes: a treatment instrument having an insertion portion configured by an exterior member, and an insertion member that is inserted into the exterior member and is longer than the exterior member; an insertion portion inserting/pulling-out device to transmit a driving force to the exterior member or the insertion member configuring the insertion portion of the treatment instrument, the insertion portion inserting/pulling-out device advancing/retreating at least one of the exterior member and the insertion member; and a driving force non-transmitting portion provided to the insertion member, the driving force non-transmitting portion preventing a driving force of the insertion portion inserting/pulling-out device from being transmitted to the exterior member when the insertion member is moved by a predetermined distance. | 08-21-2008 |
