Olympus Optical Company, Ltd.

Olympus Corporation

Olympus Medical Systems Corporation

Shinji Hatta

Kazuya Hijii

Masahide Ohyama

Takeaki Nakamura

Kenji Harano

Syuichi Takayama

Masakazu Gotanda

Naomi Sekino

Norihiko Hareyama

Masaaki Hayashi

Tomohisa Sakurai

Hitoshi Karasawa

Toru Nagase

Tetsumaru Kubota

Akira Shiga

Akio Nakada

Takashi Tsukaya

Tadao Hagino

Akihiro Taguchi

Koji Shimomura

Koji Yamauchi

Hiroshi Sasaki

Tatsuo Nagasaki

Tatsuya Saito

Keita Suzuki

Kunihide Kaji

Hiroki Hibino

Yasuhiro Ueda

Hiroyoshi Fujimori

Hiroshi Okabe

Tsuyoshi Hayashida

Koji Yasunaga

Tatsuya Kubota

Takashi Mihori

Tsuruo Hatori

Yutaka Ohshima

Hiroo Ono

Toshiki Terayama

Hiroyuki Kusunoki

Yuichi Morizane

Hiroyuki Sangu

Masashi Abe

Koji Taguchi

Shuichi Kimura

Masaru Karasawa

Toshiyuki Takara

Takeshi Takigawa

Yoshitaka Honda

Shinichi Imade

Akira Taniguchi

Kazue Tanaka

Sakae Takehana

Koji Iida

Mitsumasa Okada

Sumihiro Uchimura

Koichi Matsui

Katsushi Watanabe

Seiichi Hosoda

Naoki Uchiyama

Tsuyoshi Tsukagoshi

Nobuyuki Furukawa

Fumiaki Ishii

Akihisa Ogawa

Makoto Inaba

Hiroshi Takahashi

Hiroaki Matsumoto

Masanori Gocho

Kazutaka Matsumoto

Daisaku Negoro

Koichiro Ishiwara

Yoshito Ichikawa

Masaya Yoshihara

Hideyuki Shoji

Ryouji Masubuchi

Itaru Osaki

Koichiro Ishihara

Masahide Oyama

Satoshi Mizukawa

Kouji Yamauchi

Ryouichi Konou

A lesion identification system for surgical operations has a light marker adapted for placement in the vicinity of a lesion inside an organ of an organism, and a location-identifying device detecting a light emitted from the light marker at an outside of the organ for identifying a location of the lesion. The marker includes a light emitter and an engagement member associated with the emitter to be engageable with a wall of the organ. The engagement member includes a clip. The light emitter emits light with a wavelength in a near-infrared range. The device includes an endoscope comprising an inserter section having an image pickup element picking up a reflected light, involving the light from the light marker, at an outside of the organ, and an image pickup unit allowing the reflected light, picked by the image pickup element, to be generated as an image for display on a monitor.

Light marker for indwelt use in patient's body and for identification of lesions inside patients tubular organ using the light marker

Method of identifying a lesion inside patient'S tubular organ

A high frequency cauterizing power supply unit includes a control circuit for controlling a power supply circuit and waveform generating circuit. The control circuit includes a timer for measuring an output period and pause period, and a counter for measuring the number of times of output. The control circuit detects a setting power and the number of times of output according to the diameter of a blood vessel with a simple method in a short period of time, and controls the output period so as to be shortened, and also controls a setting power and the number of times of output depending on the diameter of the blood vessel.

Electric surgery apparatus for supplying electric power suitable for subject tissue

An ultrasonic lithotripter comprising a first transmission probe which has a hollow portion in the form of a through hole and transmits ultrasonic vibration and a superfine second transmission probe which can be passed through the hollow portion of the first transmission probe. An object of manipulation is held by means of the second transmission probe as it is manipulated by means of the first transmission probe.

Calculus manipulation apparatus

A treatment instrument output data analysis section includes a probe ID extraction section, an output waveform extraction section, a data analysis section and an analysis result output section. The analysis result output section of the treatment instrument output data analysis section can display on a centralized display panel a synthetic image made by synthesizing a frame image stored in an image storage section of an endoscopic camera apparatus and an analysis result analyzed by the data analysis section.

Operation system and method of notifying system operation information of same

An endoscopic lithotripsy probe apparatus includes a probe, ultrasonic-vibration source, mechanical shock generation source, and switch-mechanism. The ultrasonic-vibration source is detachably attached to the probe to transmit an ultrasonic-vibration to the probe in a state in which the proximal end of the probe is connected to the ultrasonic-vibration source. The mechanical shock generation source, which is disposed on the side of the proximal end of the probe, applies a force to the ultrasonic-vibration source in a state in which the ultrasonic-vibration source is detached from the proximal end of the probe, and allows the ultrasonic-vibration source to collide with the proximal end of the probe so that a mechanical shock is applied to the probe. The switch-mechanism switches a state in which the ultrasonic-vibration from the ultrasonic-vibration source is transmitted to the probe and a state in which the mechanical shock from the mechanical shock generation source is transmitted.

Endoscopic lithotripsy apparatus and lithotripsy method of treatment object using the apparatus

A therapeutic system comprising a therapeutic applicator for treating living tissues and an observation unit for determining the position of the applicator. The therapeutic energy applied from the applicator to the living tissues is controlled in accordance with data representing the position of the applicator, determined by the observation unit. It is therefore easy to operate the system even if the applicator and the observation unit (e.g., an MRI apparatus) are used at the same time. The image of the living tissues remains clear during the use of the therapeutic applicator.

Therapeutic system

When a user steps on a footswitch, high-frequency output power is delivered. A control circuit included in a diathermic power supply calculates the impedance ZSn that is offered by a living tissue immediately after delivery of high-frequency output power is started during the n-th delivery period. The control circuit also calculates the impedance ZEn that is offered thereby immediately before delivery of high-frequency output power is discontinued with elapse of predetermined time. The control circuit then discontinues delivery of high-frequency output power for the predetermined time, and calculates a difference &#x394;Zn between the impedances. When the difference meets a predetermined condition that implies coagulation or when the number of times of delivery reaches a predetermined value, the control circuit discontinues delivery of high-frequency output power.

Electric operation apparatus

An electric operation apparatus includes a high-frequency generating device which generates high-frequency current for treating the body anatomy, an active electrode which supplies to the body anatomy, the high-frequency current generated by the high-frequency generating device, a solution supply device which supplies a conductive solution around the active electrode, a return electrode which returns, via the conductive solution supplied by the solution supply device, the high-frequency current supplied to the body anatomy from the active electrode in the conductive solution, a sensor which detects a conductive state of the high-frequency current that flows between the active electrode and the return electrode, and a control device which determines a state of bubbles generated around the active electrode and which changes an operation mode, based on the conductive state of the high-frequency current detected by the sensor.

Electric operation apparatus and control method thereof

A treatment electrode of a resectoscope apparatus is substantially semicircular-shaped. A length a of a first segment and a length b of a second segment satisfy a relationship of (a&#x3e;2&#xb7;b). The first segment is in parallel with the plane on which a parallel lead member exists and has the maximum width of the treatment electrode. The second segment is vertical to the first segment and has the maximum distance between an intersection to the first segment and an intersection to the treatment electrode.

Resectoscope apparatus and electric operation apparatus

A resectoscope apparatus includes a high-frequency generating device which generates high-frequency current, a hollow sheath which can be inserted in the celom, a scope which is arranged in the sheath and which can observe the celom, an active electrode which transmits the high-frequency current to the body organ, and a solution supply device which supplies a solution to the hollow sheath. At least one of the sheath and the scope has conductivity. The sheath or the scope having the conductivity is connected to high frequency generating device via a connecting member so as to collect return current.

Resectoscope apparatus

An electrosurgical device for treating a body tissue with a high-frequency power includes an electrode for exposing the body tissue to the high-frequency power for treatment, and a high-frequency cautery power supply having a control circuit that outputs a high-frequency power generator for outputting the high-frequency power to the electrode. The control circuit of the high-frequency cautery power supply includes a timer for measuring output time and suspension time of the high-frequency power applied to the body tissue, a counting unit for counting the number of output of the high-frequency power, an impedance detector for detecting an impedance of the body tissue in the coagulated state thereof when the body tissue is treated using the high-frequency power applied from the electrode, an impedance comparator for comparing the impedance of the coagulated tissue detected by the impedance detector with an impedance predetermined for the purpose of the treatment of a region to be treated, and a high-frequency power switch for switching the output of the high-frequency power generator.

Electrosurgical device for treating body tissue with high-frequency power

When a user steps on a footswitch, high-frequency output power is delivered. A control circuit included in a diathermic power supply calculates the impedance ZSn that is offered by a living tissue immediately after delivery of high-frequency output power is started during the n-th delivery period. The control circuit also calculates the impedance ZEn that is offered thereby immediately before delivery of high-frequency output power is discontinued with elapse of predetermined time. The control circuit then discontinues delivery of high-frequency output power for the predetermined time, and calculates a difference &Dgr;Zn between the impedances. When the difference meets a predetermined condition that implies coagulation or when the number of times of delivery reaches a predetermined value, the control circuit discontinues delivery of high-frequency output power.

A surgical instrument can be disinfected or sterilized, and has a rechargeable secondary battery incorporated therein. A distal treatment section of the surgical instrument is ultrasonically oscillated or otherwise activated using the secondary battery as a driving power source to perform surgery on a living tissue. Electromagnetic energy generated by an energy generation unit located outside the surgical instrument is received by a reception coil incorporated in the surgical instrument with the surgical instrument by induction from the energy generation unit. The electromagnetic energy is then converted into charging power with which the secondary battery is recharged. Thus, the surgical instrument can be readily recharged without compromising sterility.

Surgical apparatus permitting recharge of battery-driven surgical instrument in noncontact state

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Hachioji, Japan

Shinji Hatta