Patent application number | Description | Published |
20090018469 | ENDOSCOPIC SURGICAL TOOL - The present invention is related to an endoscopic treatment tool which is inserted to a body cavity endoscopically including a wire, a surgical section which is disposed on a first end of the wire and used for treatment inside the body cavity, and an operator section which is disposed on the second end of the wire and moves in conjunction with the wire so as to rotate by a rotary operation; and the movement of the operator section in conjunction with the wire is released upon exerting more than a predetermined torsional load on the wire. | 01-15-2009 |
20090030369 | BALLOON CATHETER - The balloon catheter according to the present invention is one is provided with a catheter shaft having flexibility with a lumen formed inside; a balloon that is disposed at the distal end side of the catheter shaft and in communication with the lumen; a fluid regulating portion that passes a fluid that is supplied from a fluid supply source to the balloon and, simultaneous with the supply from the fluid supply source being stopped, prevents backflow of the fluid that is supplied to the balloon to the fluid supply source side; and a fluid releasing portion that releases the fluid that is supplied to the balloon to outside of the balloon. | 01-29-2009 |
20090048487 | TREATMENT DEVICE - A treatment device according to the present invention includes: an elongated sheath having flexibility, the sheath being passed through an endoscope and introduced to an object to be treated; an incision knife section disposed approximately along an axial line of the sheath around an outer periphery at the distal end thereof, the incision knife section being used for incising tissue of the object to be treated; and a rotation-torque-transmitting section extending from a proximal end of the elongated sheath maneuvered by an endoscopist to an intermediate section of the incision knife section in the axial line direction, the rotation-torque-transmitting section rotating the sheath by transmitting rotation torque input at the proximal end of the sheath. | 02-19-2009 |
20090054921 | TREATMENT DEVICE - A treatment device is provided including a catheter having a lumen that is opened to a distal end of the catheter; a wire passing through the lumen so that the wire is inserted into or retracted from the lumen; and a piece disposed at a distal end of the wire and having the maximum width when the piece is protruded from the distal end of the catheter is set larger than the diameter of the lumen, wherein the piece body is formed of a deformable material having a broad curved surface shape that distributes concentration of pressure acting on tissues, and when the wire is pulled in toward the catheter, the piece being extended in the axial direction by the lumen and reduced in its outer diameter so as to be pulled into the lumen. | 02-26-2009 |
20090105534 | ENDOSCOPIC TREATMENT INSTRUMENT - A treatment device for an endoscope has a tubular sheath portion having an inlet opening at the proximal end thereof and a long treatment device body provided with a basket at the distal end thereof, wherein the treatment device body is advanceably/retreatably inserted into the sheath portion through the inlet opening, and the basket is projected from and retreated into the distal end of the sheath portion by advancing and retreating the treatment device body relative to the sheath portion. The treatment device for an endoscope has an installation portion that is placed between an endoscope, at which forceps plug opening is provided, and the sheath portion and installs the sheath portion to the endoscope such that the inlet opening and the forceps plug opening are arranged opposite to each other on substantially the same line. | 04-23-2009 |
20090221870 | ENDOSCOPIC TREATMENT INSTRUMENT - A drainage tube retainer | 09-03-2009 |
20090259211 | FLUID FEEDER, BALLOON CATHETER AND FLUID FEEDER SUPPORTING DEVICE - A fluid feeder ( | 10-15-2009 |
20090299222 | GUIDE WIRE TREATMENT TOOL - A guide wire treatment tool includes an operation wire having a treatment part on the head thereof, and a sheath through which the operation wire is slidably inserted. A head chip having a through-hole, through which a guide wire is inserted, is provided on a head part of the treatment part, and the treatment part and the head chip are coupled via a coupling part so as to be relatively rotatable around an axis which extends along the length of the operation wire. | 12-03-2009 |
20090312829 | STENT DELIVERY SYSTEM AND STENT DELIVERY METHOD - A stent delivery system includes a tubular stent which is retained in a body cavity of a living body; a pusher tube, whose distal end contacts with a proximal end of the stent, which pushes and moves the stent to a distal end side; a filament which connects the stent with the pusher tube by the proximal end side of the filament being engaged with the pusher tube and by the distal end side of the filament stretching to the stent side so as to penetrate the peripheral wall of the stent; an engaging member which is engaged with a distal end portion of the filament penetrating the peripheral wall of the stent, and which keeps the connecting condition between the stent and the pusher tube by the filament; and a pulling member which pulls a distal end side of the filament into a proximal end side of the pusher tube when the engagement between the engaging member and the filament is released and the connection between the stent and the pusher tube is released. | 12-17-2009 |
20100030142 | BALLOON CATHETER AND SHEATH FABRICATION METHOD - A balloon catheter including: a flexible sheath which has at least one lumen; and a cylindrical balloon which is fixed to the outer peripheral surface of the sheath and can be inflated with a fluid supplied from the lumen; wherein the sheath has a large diameter portion whose outer diameter is greater than a basic outer diameter thereof, and the balloon is set to have a maximum inner diameter greater than the basic outer diameter when deflated, and is attached to the outer peripheral surface of the large diameter portion. | 02-04-2010 |
20100056910 | Guidewire catheter - A guidewire catheter includes: a sheath for passing a guidewire therethrough; an operation section connected to an end of the sheath and having a through-hole for passing the guidewire therethrough; a guidewire adapter connected to the operation section and capable of freely extending or retracting relative to the operation section along the axial line of the through-hole, the guidewire adapter grasping the outer periphery surface of the guidewire projecting from the through-hole, and the guidewire adapter being capable of guiding and moving the guidewire relative to the operation section in an axial direction and a circumferential direction of the through-hole; a bar-shaped slide section formed on one of the operation section and the guidewire adapter in the exterior of the through-hole, the slide section being disposed along a line which is parallel with the axial line of the through-hole; a receiver formed on the other one of the operation section and the guidewire adapter and being capable of moving and supporting the freely extendable or retractable slide section; a connection section having a second through-hole formed coaxially with the axial line of the through-hole formed in the guidewire adapter; and a grip section, engaged with the second through-hole, for grasping an outer periphery surface of the guidewire, and the grip section being capable of freely rotatable around the axial line of the second through-hole. | 03-04-2010 |
20100298634 | MEDICAL INSTRUMENT FOR ENDOSCOPE AND TREATMENT METHOD - A medical instrument for an endoscope according to the invention is the medical instrument to be used in the endoscope by being inserted therein, and the medical instrument includes: a flexible elongated sheath having a first lumen and a second lumen; a conductive wire which is inserted into the first lumen and of which a portion of a distal side is exposed to the outside of the sheath as an instrument unit; and a balloon which is attached to the sheath and is expandable with the supply of fluid from the second lumen. The balloon is configured such that an axial dimension thereof is larger than a radial dimension upon expansion and a distal end of the balloon upon expansion is located closer to a proximal side than the treatment unit exposed from the sheath. | 11-25-2010 |
20110106077 | TREATMENT INSTRUMENT - This treatment instrument includes: a flexible wire that has a first end part and a second end part, and that has a treatment part at an intermediate part for conducting treatment within a body cavity; small-diameter parts where at least a portion of the outer circumferential face of the wire has a smaller diameter or is denuded relative to the rest; a bundled part where the wire is bundled so as to at least include the small-diameter parts; and a manipulation wire that is connected to this bundled part. | 05-05-2011 |
20120016190 | ENDOSCOPE TREATMENT INSTRUMENT - In this treatment tool for endoscope, a sheath includes, at the distal end thereof, a tubular extended part having a predetermined thickness in the radially outward direction from an inner peripheral face of a first hole and extending further to the distal-end side, and a passive electrode is disposed such as to surround the outer periphery of the extended part. | 01-19-2012 |
20120041308 | TREATMENT DEVICE - A treatment device is provided including a catheter having a lumen that is opened to a distal end of the catheter; a wire passing through the lumen so that the wire is inserted into or retracted from the lumen; and a piece disposed at a distal end of the wire and having the maximum width when the piece is protruded from the distal end of the catheter is set larger than the diameter of the lumen, wherein the piece body is formed of a deformable material having a broad curved surface shape that distributes concentration of pressure acting on tissues, and when the wire is pulled in toward the catheter, the piece being extended in the axial direction by the lumen and reduced in its outer diameter so as to be pulled into the lumen. | 02-16-2012 |
20130190560 | Medical Coil, method of manufacturing the same, and medical instrument - A medical coil is provided which is formed by winding an element wire, and includes a convex part provided on a first end of a width direction of the element wire, and a concave part provided on a second end of the width direction of the element wire. At least one of the convex part and the concave part has a slant face. When a compressive force is applied in an axial direction of the medical coil, the convex part and the concave part adjacent to each other are configured to approach each other. A segment which connects a top part of the convex part which protrudes the most and a deepest part of the concave part which is deepest forms an angle so as not to be parallel to an axis of the medical coil. | 07-25-2013 |
20130237879 | TREATMENT TOOL FOR BIOPSY AND TISSUE COLLECTING METHOD - This treatment tool for biopsy includes a needle tube, which having a first aperture and a second aperture. The first aperture and the second aperture communicate with the tubular space. The second aperture is provided in a side surface of the needle tube at more proximal end side than the first aperture. In a cross-section of the second aperture, a distal end circular arc portion of an end surface of the second aperture has a distal end side inclined surface that is inclined so as to be positioned gradually outwards of a radial direction of the needle tube towards the distal end side, and a proximal end circular arc portion of the end surface of the second aperture has a proximal end inclined surface that is inclined so as to be positioned gradually outwards of the radial direction of the needle tube towards the proximal end side. | 09-12-2013 |
20140012283 | ENDOSCOPE TREATMENT TOOL - An endoscope treatment tool includes a flexible sheath, a manipulation wire, and a basket portion constituted by a locking portion and a plurality of elastic wires. A maximum outside diameter portion of the basket portion is at a position closer to the locking portion than an intermediate position between a proximal end of the basket portion and the locking portion. The plurality of elastic wires is formed in a shape of a helix, and a winding pitch of the plurality of elastic wires becomes gradually smaller in a direction from a proximal side to the distal side of the manipulation wire. When a proximal side of the basket portion is reduced, an outside diameter of the maximum outside diameter portion is maintained at substantially a same size as the outside diameter before the proximal side of the basket portion is reduced. | 01-09-2014 |
20140018800 | MEDICAL INSTRUMENT FOR ENDOSCOPE AND TREATMENT METHOD - A medical instrument for an endoscope according to the invention is the medical instrument to be used in the endoscope by being inserted therein, and the medical instrument includes: a flexible elongated sheath having a first lumen and a second lumen; a conductive wire which is inserted into the first lumen and of which a portion of a distal side is exposed to the outside of the sheath as an instrument unit; and a balloon which is attached to the sheath and is expandable with the supply of fluid from the second lumen. The balloon is configured such that an axial dimension thereof is larger than a radial dimension upon expansion and a distal end of the balloon upon expansion is located closer to a proximal side than the treatment unit exposed from the sheath. | 01-16-2014 |
20140031746 | FLUID SUPPLY BODY AND BALLOON CATHETER - A fluid supply body for supplying a fluid to a balloon formed of a material having elasticity and inflating the balloon, the fluid supply body includes a cylinder, a plunger, an adjusting portion that is attached to the plunger and adjusts the movement, amount of the plunger so that the balloon is inflated with to a predetermined inflation diameter, and a fixing portion that is provided at the cylinder and fixes the plunger at a position within the cylinder corresponding to the movement amount adjusted by the adjusting portion, wherein the adjusting portion has a plurality of engaging portions that, specify movement amounts corresponding to a plurality of different inflation diameters of the balloon, and the fixing portion has an engaged portion, and a converting portion. | 01-30-2014 |