Patent application number | Description | Published |
20080208161 | Application of procedure through natural orifice - The application of the procedure through a natural orifice of the present invention includes the steps of: inserting a flexible endoscope through the natural orifice to the alimentary tract; incising the close-contact portion of the alimentary tract and the gall bladder under a guidance of a device for identifying the positional relationship from the alimentary tract side and forming an puncture; extracting stones in the gall bladder from the body; and removing the endoscope after completing the procedure. | 08-28-2008 |
20080208214 | Applicator and tissue fastening method through natural orifice - The applicator related to the present invention is provided with a flexible sheath longer than the overall length of an instrument channel of a flexible endoscope; an operation part used outside the instrument channel; a deployed section that can be made to protrude from the front end of the sheath by operating the operation part and to pierce a tissue; a tissue fastening tool made of a superelastic wire formed in coil shape and housed inside the deployed section in a substantially extended condition; and a pusher that pushes out the tissue fastening tool from the deployed section when the operation part is operated. | 08-28-2008 |
20080243148 | SUTURE INSTRUMENT - A suture instrument that is inserted into a body and ejects an elongated anchor to be engaged to tissue, consisting of: an elongated member that extends from a proximal end on a hand side to a remote end that is introduced to tissue and has flexibility; a needle that is provided at the remote end of the elongated member, has at the distal end a sharp tip that is capable of puncturing tissue, is capable of housing a plurality of the anchors inside, and is provided with a side hole through which the anchors are capable of passing; a pusher whose remote end abuts the anchor that is housed in the needle and is disposed in a manner to be capable of moving in the axial direction of the elongated member; and a push-out control portion that is provided in the needle or the pusher and changes the movement direction of the anchor that has been moved to a formation position of the side hole by the pusher from the length-wise direction of the needle to a direction heading toward the side hole. | 10-02-2008 |
20080319257 | Living body wall fixing tool used in endoscope - A living-wall fixing tool for use with endoscopes has a first second fixing member, a second fixing member, a first cord-like member, a second cord-like member, an elastic stopper, and slackening means. The first fixing member is to be inserted into a second organ through a hole formed in a junction between a first living wall of a first organ and a second living wall of the second organ. The second fixing member is to be detained in the first organ, not inserted into the hole. The first cord-like member has a distal end part connected to the first fixing member and a proximal part extending away from the first fixing a member through the second fixing member. The second cord-like member has a distal end part connected to an end of the first fixing member and a proximal part extending away from the first fixing member through the second fixing member. The stopper is slidably mounted on the first cord-like member. The slackening means slackens the first cord-like member. When the slackening means is operated, the second cord-like member is pulled, whereby the first fixing member is pulled into the first organ through the hole. | 12-25-2008 |
20090069822 | TISSUE FASTENING TOOL, STENT, APPLICATOR FOR PLACING THE SAME, AND TISSUE FASTENING METHOD THROUGH NATURAL ORIFICE - The tissue fastening apparatus includes: a tissue fastening tool 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 adjacent to the first biological tissue; a stent provided with a dilating portion having a diameter which increases from a front end to a rear end of the dilating portion, an indwelled portion which is connected the dilating portion, and a through hole which passes through the dilating portion and the indwelled portion in a longitudinal direction of the stent; and an applicator provided with a tubular puncturing tool in which the tissue fastening tool is inserted, a fastening tool pusher inserted into the puncturing tool to dispenses the tissue fastening tool inserted into the puncturing tool from a distal end of the puncturing tool, and a sheath into which the puncturing tool is inserted to shift the stent which is detachably disposed at the distal end of the sheath relative to the puncturing tool. | 03-12-2009 |
20090125039 | SUTURE INSTRUMENT - A suture instrument that is inserted into a body and ejects an elongated anchor to which a suture thread that sutures a perforation is connected and which is placed on tissue, including a base that extends from a proximal end on a hand side to a remote end that is introduced to tissue and has flexibility; an anchor holding instrument that is disposed at the remote end of the base, is capable of housing a plurality of the anchors inside, and whose distal end that ejects the anchors is approximately pointed in the direction of the proximal end of the base; a tip position changing mechanism that is provided for changing the tip position of the anchor holding instrument and causes the anchor holding instrument to move in a direction that intersects with the axial line of the lengthwise direction of the base; and a position operation device that operates the tip position changing mechanism at the hand side and operates the tip position of the anchor holding instrument. | 05-14-2009 |
20100010293 | TREATMENT METHOD - A treatment method on tissues in a body cavity includes: a first step of forming a hole for communicating first body tissue with second body tissue while both are in close contact with each other; and a second step of endoscopically inserting a treatment device into the second body tissue through the hole. | 01-14-2010 |
20100010509 | TISSUE FASTENING APPARATUS - 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. | 01-14-2010 |
20100010514 | TISSUE FASTENING TOOL - 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 turn portion that is connected to the spring portion and forms, on the outside of the spring portion, a loop that is approximately parallel with a base loop that the first tissue fixing portion and the second tissue fixing portion form; and the base loop, the loop that the spring portion forms, and the loop that the end turn portion forms are disposed so as not to mutually overlap in the diameter direction of the base loop. | 01-14-2010 |
20100010520 | TISSUE FASTENER - This tissue fastening apparatus is a tissue fastener for clamping first biological tissue and second biological tissue so as to be in close contact with each other, including: a first tissue fixation portion, made of an elastic wire wound in a coil, that is locked on the first biological tissue; and a second tissue fixation portion, made of an elastic wire wound in a coil, that is locked on the second biological tissue, the second tissue fixation portion continuing into the first tissue fixation portion, in which when falling off first and second biological tissue necrotized by being clamped between the first tissue fixation portion and the second tissue fixation portion, the tissue fastener moves only from the second tissue fixation portion to the first tissue fixation portion side and falls off. | 01-14-2010 |
20100063401 | ULTRASOUND ENDOSCOPE SYSTEM AND ULTRASOUND OBSERVATION METHOD - When an ultrasound endoscope arrives at an objective area, a puncture needle is located in a scan area of a first ultrasound image. Thereby, an image of the puncture needle is delineated on the first ultrasound image. Furthermore, an ultrasound probe is inserted into the puncture needle and an ultrasound transducer of the ultrasound probe is arranged in the objective area through the puncture needle. Then, the ultrasound probe is driven and a second ultrasound image is delineated. Detailed observation inside the objective area in which the puncture needle is punctured is possible with the second ultrasound image. | 03-11-2010 |
20110152886 | APPLICATOR AND TISSUE FASTENING METHOD THROUGH NATURAL ORIFICE - The applicator related to the present invention is provided with a flexible sheath longer than the overall length of an instrument channel of a flexible endoscope; an operation part used outside the instrument channel; a deployed section that can be made to protrude from the front end of the sheath by operating the operation part and to pierce a tissue; a tissue fastening tool made of a superelastic wire formed in coil shape and housed inside the deployed section in a substantially extended condition; and a pusher that pushes out the tissue fastening tool from the deployed section when the operation part is operated. | 06-23-2011 |
20120029278 | Implant placement device, coupling support, and endoscopic treatment tool - An implant placement device includes a sheath; a long-axis member having an opening on a distal end side, movable along an axis, and a lumen communicating with the opening; a stylet movable in the axis and provided within the lumen to be turnable around the axis; an operating part on a proximal end side of the stylet to turn the stylet around the axis; a guide part on the proximal end side of the sheath to guide the operating part in a predetermined direction, thereby moving the sheath in the axis with respect to the stylet and turning a distal end portion of the stylet around the axis; and a coupling portion formed at the distal end of the stylet, detachably coupled with an implant, and moving in the axis and turning around the axis along with the stylet and the implant according to an operation of the operating part. | 02-02-2012 |
20120172896 | TISSUE FASTENING METHOD - 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. | 07-05-2012 |
20120215236 | Tissue fastner production method and tissue fastener - A tissue fastener production method of clamping two living tissues together by bringing the two living tissues into close contact includes the following steps: fixing one end of a wire material made of a metal to a shaft body, and winding the wire material around an outer periphery of the shaft body while twisting the wire material round an axis of the wire material, thereby forming a coil on which a predetermined force is exerted in the winding direction; heat treating the wire material to impart superelasticity thereto; and deforming the wire material to which the superelasticity is imparted in a range in which the wire material is elastically deformable, and reversing the winding direction of the coil in a direction reverse to the winding direction of the coil wound in the step of forming the coil so as to obtain an initial tension corresponding to the predetermined force. | 08-23-2012 |
20120265057 | ULTRASOUND ENDOSCOPE SYSTEM AND ULTRASOUND OBSERVATION METHOD - When an ultrasound endoscope arrives at an objective area, a puncture needle is located in a scan area of a first ultrasound image. Thereby, an image of the puncture needle is delineated on the first ultrasound image. Furthermore, an ultrasound probe is inserted into the puncture needle and an ultrasound transducer of the ultrasound probe is arranged in the objective area through the puncture needle. Then, the ultrasound probe is driven and a second ultrasound image is delineated. Detailed observation inside the objective area in which the puncture needle is punctured is possible with the second ultrasound image. | 10-18-2012 |
20130046338 | TREATMENT INSTRUMENT FOR ENDOSCOPE - A treatment tool for an endoscope includes a sheath member, a treatment part, an operating part body, an operating wire, a slider, and a force limiting part. When a predetermined force is applied to the force limiting part with advance and refraction of the slider, the force limiting part engages a wall surface of the insertion passage of the operating wire and fixes the slider by being compressed in an advance-and-retraction direction and expanding in a radial direction. | 02-21-2013 |
20130144164 | ULTRASONIC PUNCTURE NEEDLE - An ultrasonic puncture needle used in combination with an ultrasonic endoscope including a distal-end hard part, a bendable part, and an operation part, includes: a sheath inserted into an insertion channel of the ultrasonic endoscope; a needle tube that includes an opening; a releasing mechanism that releases a substance. In a state in which the needle tube is disposed inside the bendable part, a periphery of the needle tube receives a force from an inner wall of the insertion channel while the bendable part is in a bent state by the operation part. The needle tube is rotated around a long axis of the insertion channel by the force, such that an axis line matching the direction of the opening in the needle tube protruding from the insertion channel becomes substantially parallel with an ultrasonic scanning face of the ultrasonic endoscope. | 06-06-2013 |
20130289617 | ENDOSCOPE TREATMENT TOOL - An endoscopic treatment tool includes a sheath, a support portion which is attached to a distal end of the sheath, a pair of forceps members which are provided on the support portion, a linear portion which is inserted through the sheath so that the linear portion is capable of advancing and retracting, the linear portion causing facing surfaces each provided on the pair of forceps members to approach each other, and the linear portion separating the pair of facing surfaces from each other, an engaging portion which is provided in the support portion, an engaged portion which is provided in the linear portion, and a moving mechanism that moves the position of the distal end portion of the linear portion to a distal end position closer to the distal end side than the engaged portion. | 10-31-2013 |
20130325038 | IMPLANT PLACEMENT DEVICE - An implant placement device includes a longitudinal axis member having a lumen extending along a longitudinal axis of the longitudinal axis member such that the implant is disposed in a stretched state and an opening formed by communicating with the lumen, a stylet provided in the lumen, a sheath into which the longitudinal axis member is inserted,—an operating part operating the sheath so as to be rotatable around the longitudinal axis, and having a contact surface that is in contact with a part of the implant, which is pushed out of the opening of the longitudinal axis member by the stylet, in a rotational direction around the longitudinal axis in a state where the opening of the longitudinal axis member is located inside the sheath. | 12-05-2013 |
20140151171 | ENERGY ABSORBING BODY AND ENERGY ABSORBING BODY MANUFACTURING METHOD - An energy absorbing body includes: a first energy absorbing member ( | 06-05-2014 |
20140350581 | TISSUE FASTNER PRODUCTION METHOD AND TISSUE FASTENER - A tissue fastener production method of clamping two living tissues together by bringing the two living tissues into close contact includes the following steps: fixing one end of a wire material made of a metal to a shaft body, and winding the wire material around an outer periphery of the shaft body while twisting the wire material round an axis of the wire material, thereby forming a coil on which a predetermined force is exerted in the winding direction; heat treating the wire material to impart superelasticity thereto; and deforming the wire material to which the superelasticity is imparted in a range in which the wire material is elastically deformable, and reversing the winding direction of the coil in a direction reverse to the winding direction of the coil wound in the step of forming the coil so as to obtain an initial tension corresponding to the predetermined force. | 11-27-2014 |