Olympus Corporation

Terumo Kabushiki Kaisha

Olympus Medical Systems Corporation

Terumo Cardiovascular Systems Corporation

Hideyuki Kasahara

Takahiro Kogasaka

Seiji Maeda

Yoshitaka Honda

Kazue Tanaka

Akihito Kano

Randal James Kadykowski

Hiroaki Ichikawa

Lyne Madeleine Charron-Keller

Tomoyuki Takashino

Ken Yamatani

Masato Tamai

Susumu Komagata

Hiroshi Kakidachi

Takumi Dejima

Manabu Miyamoto

Kunihide Kaji

Kazuo Banju

Satoshi Takekoshi

Yasuo Tanigami

Masatoshi Iida

Tatsutoshi Hashimoto

Toru Nagase

Shinji Yasunaga

Akira Murata

Yuji Kishimoto

Shuhei Iizuka

Kazunori Taniguchi

Nobuyoshi Yazawa

Takeshi Arai

Satomi Sakao

Madoka Ito

Masayuki Irie

Yusuke Otsuka

Noriko Kuroda

Takaaki Igarashi

Randal J Kadyowski

The system includes a memory that stores first and second trained models, and a processor. The processor acquires a captured image in which at least one energy device and at least one biological tissue are imaged. The processor detects a bounding box from the captured image by processing based on the first trained model and estimates the image recognition information from the captured image in the bounding box by processing based on the second trained model. The processor outputs an energy output adjustment instruction based on the estimated image recognition information to the generator. The generator controls the energy supply amount to the energy device based on the energy output adjustment instruction.

System for estimating image recognition information from at least images of energy device and biological tissue, computer-readable non-transitory information storage medium, and energy output adjustment method

A medical system can include a light source configured to generate excitation light; and a processor including a memory, the processor: controlling energy supplied to an energy device, the light source generating the excitation light to generate fluorescence from the living body tissue heat treated by the energy device; generating a fluorescence image based on an image pickup signal obtained by imaging the living body tissue; and generating a control signal that restricts energy supply to the energy device and output the control signal to the energy control apparatus when a pixel value of at least one pixel in the fluorescence image exceeds a first threshold value.

Medical system, energy control method, and processor

A suture needle has: a flexible elongated shaft member; a passing mechanism for passing a suture needle between two gripping members, wherein the passing mechanism has fitting hole portions that are provided in the respective gripping members and that hold the suture needle in a fitting manner, a holding member movable in a direction intersecting the axis of each fitting hole portion and having a pressing surface which can press an outer circumferential surface of the suture needle held in the fitting hole portion, and a tensile-force-transmitting member coupled with the holding member and which can move along the longitudinal axis of the elongated shaft member, wherein the outer circumferential surface of the suture needle is pressed by the pressing surface against the inner circumferential surface of the fitting hole portion by the motion of the tensile-force-transmitting member.

Suture instrument

A treatment system includes: an absorbent member which is arranged to be discharged into the biological tissues as the fusion targets from the first jaw, thermally deformed when the thermal energy is applied thereto; a first energy discharge portion which is configured to discharge the absorbent member toward the second holding surface, and which is configured to supply the high-frequency energy and the thermal energy to the biological tissues; a second energy discharge portion which is configured to come into contact with at least a part of the absorbent member when the absorbent member is discharged, and which is configured to supply the high-frequency energy and the thermal energy to the biological tissues; and a control unit which is configured to control the energy source to supply the thermal energy after discharging the absorbent member to the biological tissues.

Treatment instrument system with thermally deformable absorbent member and slidable holding surface

A surgical device which is configured to apply energy to living tissue and to be used to perform a surgical procedure includes a grasping portion, an incising portion, an introduction portion and a treatment portion. The grasping portion grasps the living tissue having a first surface and a second surface. The incising portion is movable forward and backward with respect to the living tissue and incises the living tissue. The introduction portion is movable forward and backward with respect to the living tissue and introduces a biocompatible material, which is chemically bound with the living tissue, to a space between the first surface and the second surface. The treatment portion is configured to apply high-frequency energy and thermal energy to the living tissue.

Treatment device and treatment method

A surgical treatment device which is used together with an endoscope, includes a sheath, a treatment portion which is arranged at the distal end portion of the sheath and includes first to third electrodes configured to treat a living tissue by using electrical energy, an operation portion which is arranged at a proximal end portion of the sheath and which is configured to operate the treatment portion, and a switching portion which is configured to switch between a first mode in which a treatment is given by using the first electrode and at least one of the second and third electrodes in the treatment portion and a second mode in which a treatment is given by using the second and third electrodes.

Surgical treatment device

A treatment method for a living tissue using energy includes a first step of outputting energy to a grasped living tissue and raising a temperature of cells of the grasped living tissue, a second step of, after the first step, outputting high-frequency energy to the grasped living tissue and destroying cell membranes of the grasped living tissue to discharge proteins in the cells to the outside of the cells, and a third step of, after the second step, outputting heat energy to the living tissue and welding the proteins to each other while dehydrating the grasped living tissue.

Treatment method for living tissue using energy

A treatment method for a living tissue using energy includes a first step of outputting high-frequency energy to grasped living tissues to destroy cell membranes of the grasped living tissues, allowing proteins to flow out of cells and joining the living tissues to each other, and a second step of, after the first step, outputting heat energy to the grasped living tissues to dehydrate the grasped living tissues.

An endoscopic surgical instrument includes an insertion section which is inserted into a body cavity, and a surgical section which is disposed on a tip of the insertion section and treats an object. The surgical section includes a body section, and a first electrode, a second electrode, and a third electrode which are disposed on the body section. The surgical section coagulates and cuts the object by using a combination of not less than two of the first electrode, the second electrode, and the third electrode.

Endoscopic surgical instrument

According to one aspect of the present invention, there is provided a treatment device for cutting a living tissue, comprising a main unit which is to be inserted into a body, a tip-end treatment portion which is disposed at a tip end of the main unit to cut the living tissue, a notch groove which is disposed at the tip-end treatment portion and which compresses the living tissue guided into the notch groove, and an electrode which is positioned in a part of the notch groove and which electrically cuts the living tissue compressed by the notch groove.

Treatment device for cutting living tissue

A cutter for a blood vessel tissue harvesting instrument is disposed at the distal end of an insertion member. A cutter body projecting from the distal end of the insertion member includes a slit that extends from the distal end toward a base edge. High-frequency electrodes are disposed along the sides of the slit. A feeding mechanism has rotating surfaces which are rotated as a result of being pressed by the tissue, and which feed the tissue toward the base edge of the slit. The rotating surfaces are provided by two rotary members disposed opposite each other along the two side edges of the slit, respectively, so that the first and second rotating surfaces move in a direction from the opening of the slit toward the base edge of the slit.

Body tissue incision apparatus

A living-body tissue removing apparatus includes a grip portion, an inserting portion which is connected to the grip portion and is inserted in the body, and an air feed channel which feeds predetermined air in the inserting portion so as to discharge the predetermined air from an opening arranged to the inserting portion.

Living-body tissue removing apparatus

According to one aspect of the present invention, there is disclosed a treatment sheath for endoscopic blood vessel harvesting, comprising a sheath main unit which can be inserted into a body through a cut skin portion in order to harvest a blood vessel in the body, a channel which is formed along a longitudinal direction in the sheath main unit and through which an endoscope is inserted so as to be insertable/detachable, a blood vessel holding member which is disposed at the sheath main unit and which holds the blood vessel to be harvested; and a blood vessel cutting device which is disposed at the sheath main unit and is positioned substantially symmetrically with the blood vessel holding member with respect to the channel and which cuts the blood vessel to be harvested.

Treatment sheath for endoscopic blood vessel harvesting

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.

Blunt dissector for separating blood vessels from surrounding tissue

In a bipolar cutter for a living body tissue, a groove part is formed in a member that is arranged close to an active electrode, thereby providing a constitution to cut while the blood stanching is ensured since when a heat amount generated by the active electrode is conducted in the member, an excessive heat conduction to the member is efficiently interrupted by a layer of air that is produced due to the groove part and the living tissue is thus provided with more heat.

Growing community of inventors

Tokyo, Japan

Hideyuki Kasahara