Patents by Inventor Takashi Irisawa
Takashi Irisawa has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10456188Abstract: A heating treatment apparatus to treat a living tissue by heating the living tissue includes a first holding member and a second holding member, a first heat generating element provided on the first holding member, a second heat generating element provided on the second holding member, a power supply unit supplying electric power to cause the first heat generating element and the second heat generating element to generate heat, and a control unit controlling operations of the power supply unit. The control unit switches a mode between a first mode and a second mode during treatment of the living tissue. Temperatures of the first heat generating element and the second heat generating element are controlled to the same temperature in the first mode and to different temperatures in the second mode.Type: GrantFiled: April 26, 2017Date of Patent: October 29, 2019Assignee: OLYMPUS CORPORATIONInventors: Sadayoshi Takami, Yoshitaka Honda, Takashi Irisawa, Kazue Tanaka, Toshifumi Katsuragi
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Patent number: 10441341Abstract: A treatment system includes a power source for heat generation which outputs power for heat generation, a grasping member having a heating element which applies the power for heat generation as thermal energy to a grasped living tissue and is disposed at a grasping surface, and a control section which repeats a first control mode of performing control such that the heating element reaches a first temperature and a second control mode of performing control such that the heating element becomes lower than the first temperature, and controls the power source for heat generation according to a temperature change parameter based on change in temperature of the heating element in the first control mode or the second control mode so as to end application of the thermal energy.Type: GrantFiled: July 27, 2015Date of Patent: October 15, 2019Assignee: Olympus CorporationInventors: Yoshitaka Honda, Kazue Tanaka, Takashi Irisawa, Sadayoshi Takami
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Patent number: 10342596Abstract: A living tissue bonding system includes a treatment instrument having a heating element which applies thermal energy to living tissue, an element temperature measuring section configured to measure an element temperature T1 of the heating element, a power source configured to generate power, a first calculating section configured to estimate a temperature difference ?T between the element temperature T1 and a temperature T2 of the living tissue using a table or an equation stored beforehand in order to estimate the temperature difference ?T based on an output value of the power source, a second calculating section configured to estimate the tissue temperature T2 from the element temperature T1 and the temperature difference ?T estimated by the first calculating section, and a control section configured to control the power source based on the tissue temperature T2 estimated by the second calculating section.Type: GrantFiled: December 28, 2015Date of Patent: July 9, 2019Assignee: OLYMPUS CORPORATIONInventors: Yoshitaka Honda, Takashi Irisawa, Kazue Tanaka, Sadayoshi Takami, Toshifumi Katsuragi
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Patent number: 10245097Abstract: A living tissue bonding system including: a sandwiching section for sandwiching living tissue; a power source for supplying to the living tissue treatment energy for bonding the living tissue sandwiched by the sandwiching section; a temperature measuring section for measuring a temperature of the living tissue sandwiched by the sandwiching section; a calculation section calculating, from the temperature of the living tissue measured by the temperature measuring section and a time period of applying the treatment energy, a time integral value of the temperature of the living tissue; a comparison section comparing the time integral value of the temperature of the living tissue calculated by the calculation section with a predetermined setting value; and an instruction section giving an instruction based on a result of the comparison by the comparison section.Type: GrantFiled: February 1, 2016Date of Patent: April 2, 2019Assignee: OLYMPUS CORPORATIONInventors: Yoshitaka Honda, Takashi Irisawa, Kazue Tanaka, Sadayoshi Takami, Toshifumi Katsuragi, Hiroko Sakamoto, Satomi Sakao
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Publication number: 20170333111Abstract: A surgical system for sealing a hollow organ, the surgical system including: a pair of electrodes; a memory storing data which include patterns corresponding to predetermined burst pressure value; an electrosurgical generator configured to generate a high frequency current for sealing the hollow organ; and one or more processors configured to: perform the sealing by application of the high frequency current through the hollow organ; measure impedance of the hollow organ between the pair of electrodes with time during the performing the sealing; subsequent to performing the sealing, classify parameters related to the impedance as one of patterns corresponding to predetermined burst pressure value according to the data; and estimate the burst pressure value of the hollow organ based on the one of patterns.Type: ApplicationFiled: July 24, 2017Publication date: November 23, 2017Applicant: OLYMPUS CORPORATIONInventors: Akinori KABAYA, Takashi IRISAWA
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Publication number: 20170224407Abstract: A heating treatment apparatus to treat a living tissue by heating the living tissue includes a first holding member and a second holding member, a first heat generating element provided on the first holding member, a second heat generating element provided on the second holding member, a power supply unit supplying electric power to cause the first heat generating element and the second heat generating element to generate heat, and a control unit controlling operations of the power supply unit. The control unit switches a mode between a first mode and a second mode during treatment of the living tissue. Temperatures of the first heat generating element and the second heat generating element are controlled to the same temperature in the first mode and to different temperatures in the second mode.Type: ApplicationFiled: April 26, 2017Publication date: August 10, 2017Applicant: OLYMPUS CORPORATIONInventors: Sadayoshi TAKAMI, Yoshitaka HONDA, Takashi IRISAWA, Kazue TANAKA, Toshifumi KATSURAGI
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Patent number: 9414882Abstract: A treatment system includes a power source for heat generation which outputs power for heat generation, a grasping member having a heating element which applies the power for heat generation as thermal energy to a living tissue, and a control section which performs constant temperature control on the power source for heat generation on the basis of temperature of the heating element, and controls the power source for heat generation so as to finish application of the thermal energy and complete treatment if the power for heat generation becomes not more than predetermined threshold power which is independent of a type of the living tissue or if a rate of decrease in the power for heat generation becomes not more than a predetermined threshold rate.Type: GrantFiled: June 19, 2013Date of Patent: August 16, 2016Assignee: OLYMPUS CORPORATIONInventors: Kazue Tanaka, Yoshitaka Honda, Takashi Irisawa, Sadayoshi Takami
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Publication number: 20160143684Abstract: A living tissue bonding system including: a sandwiching section for sandwiching living tissue; a power source for supplying to the living tissue treatment energy for bonding the living tissue sandwiched by the sandwiching section; a temperature measuring section for measuring a temperature of the living tissue sandwiched by the sandwiching section; a calculation section calculating, from the temperature of the living tissue measured by the temperature measuring section and a time period of applying the treatment energy, a time integral value of the temperature of the living tissue; a comparison section comparing the time integral value of the temperature of the living tissue calculated by the calculation section with a predetermined setting value; and an instruction section giving an instruction based on a result of the comparison by the comparison section.Type: ApplicationFiled: February 1, 2016Publication date: May 26, 2016Applicant: OLYMPUS CORPORATIONInventors: Yoshitaka HONDA, Takashi IRISAWA, Kazue TANAKA, Sadayoshi TAKAMI, Toshifumi KATSURAGI, Hiroko SAKAMOTO, Satomi SAKAO
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Publication number: 20160106492Abstract: A living tissue bonding system includes a treatment instrument having a heating element which applies thermal energy to living tissue, an element temperature measuring section configured to measure an element temperature T1 of the heating element, a power source configured to generate power, a first calculating section configured to estimate a temperature difference ?T between the element temperature T1 and a temperature T2 of the living tissue using a table or an equation stored beforehand in order to estimate the temperature difference ?T based on an output value of the power source, a second calculating section configured to estimate the tissue temperature T2 from the element temperature T1 and the temperature difference ?T estimated by the first calculating section, and a control section configured to control the power source based on the tissue temperature T2 estimated by the second calculating section.Type: ApplicationFiled: December 28, 2015Publication date: April 21, 2016Applicant: OLYMPUS CORPORATIONInventors: Yoshitaka HONDA, Takashi IRISAWA, Kazue TANAKA, Sadayoshi TAKAMI, Toshifumi KATSURAGI
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Patent number: 9204992Abstract: A treatment system includes a holding section that has a heat generation section for applying thermal energy and holds a living tissue, a signal output section that supplies a drive signal to the heat generation section, a signal detection section that detects the drive signal, a signal extraction section that extracts an extracted signal of a predetermined frequency band from the drive signal detected by the signal detection section, a fault detection section that detects when a precursory phenomenon of a fault of the heat generation section the extracted signal reaches or exceeds a predetermined threshold, and a control section that performs control, when the fault detection section detects the precursory phenomenon, so as to reduce power of the drive signal supplied from the signal output section to the heat generation section.Type: GrantFiled: January 23, 2014Date of Patent: December 8, 2015Assignee: OLYMPUS CORPORATIONInventors: Yoshitaka Honda, Takashi Irisawa, Sadayoshi Takami, Toshifumi Katsuragi, Kazue Tanaka
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Patent number: 9198710Abstract: A treatment system includes a treatment instrument that has a pair of freely openable/closable holding sections for applying thermal energy generated by a heat generation section to a living tissue LT held between the holding sections, a signal output section that supplies an alternating current drive signal to the heat generation section, a setting section that sets a target temperature of the heat generation section, a signal detection section that detects a current and a voltage of the drive signal, a control section that controls a temperature of the heat generation section by adjusting power of the drive signal, a signal extraction section that extracts a direct current component from the drive signal detected by the signal detection section and a fault detection section that detects a precursory phenomenon of a fault of the heat generation section based on the extracted signal extracted by the signal extraction section.Type: GrantFiled: January 23, 2014Date of Patent: December 1, 2015Assignee: OLYMPUS CORPORATIONInventors: Yoshitaka Honda, Takashi Irisawa, Sadayoshi Takami, Toshifumi Katsuragi, Kazue Tanaka
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Publication number: 20150327916Abstract: A treatment system includes a power source for heat generation which outputs power for heat generation, a grasping member having a heating element which applies the power for heat generation as thermal energy to a grasped living tissue and is disposed at a grasping surface, and a control section which repeats a first control mode of performing control such that the heating element reaches a first temperature and a second control mode of performing control such that the heating element becomes lower than the first temperature, and controls the power source for heat generation according to a temperature change parameter based on change in temperature of the heating element in the first control mode or the second control mode so as to end application of the thermal energy.Type: ApplicationFiled: July 27, 2015Publication date: November 19, 2015Applicant: OLYMPUS MEDICAL SYSTEMS CORP.Inventors: Yoshitaka Honda, Kazue Tanaka, Takashi Irisawa, Sadayoshi Takami
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Patent number: 9155884Abstract: A treatment system includes a power source for heat generation which outputs power for heat generation, a grasping member having a heating element which applies the power for heat generation as thermal energy to a grasped living tissue, a storage section storing a power decrease pattern which is a prediction about a change state of the power for heat generation, and a control section which performs pattern control on the power source for heat generation on the basis of the power decrease pattern acquired from the storage section.Type: GrantFiled: June 19, 2013Date of Patent: October 13, 2015Assignee: OLYMPUS CORPORATIONInventors: Yoshitaka Honda, Takashi Irisawa, Kazue Tanaka, Sadayoshi Takami
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Patent number: 9119619Abstract: A treatment system includes a power source for heat generation which outputs power for heat generation, a grasping member having a heating element which applies the power for heat generation as thermal energy to a grasped living tissue and is disposed at a grasping surface, and a control section which repeats a first control mode of performing control such that the heating element reaches a first temperature and a second control mode of performing control such that the heating element becomes lower than the first temperature, and controls the power source for heat generation according to a temperature change parameter based on change in temperature of the heating element in the first control mode or the second control mode so as to end application of the thermal energy.Type: GrantFiled: June 19, 2013Date of Patent: September 1, 2015Assignee: OLYMPUS MEDICAL SYSTEMS CORP.Inventors: Yoshitaka Honda, Kazue Tanaka, Takashi Irisawa, Sadayoshi Takami
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Patent number: 9023029Abstract: A treatment system includes a holding section that has a heat generation section, a signal output section that supplies a drive signal to the heat generation section, a setting section that sets a target temperature of the heat generation section, a signal detection section that detects the drive signal, a signal extraction section that extracts an extracted signal of a predetermined frequency band from the drive signal detected by the signal detection section, a fault detection section that detects a precursory phenomenon of a fault of the heat generation section when the extracted signal reaches a predetermined threshold, and a control section that controls the drive signal to the heat generation section in a treatment mode for treating the living tissue at the target temperature or in a test mode for detecting the precursory phenomenon.Type: GrantFiled: January 23, 2014Date of Patent: May 5, 2015Assignee: Olympus Medical Systems Corp.Inventors: Yoshitaka Honda, Takashi Irisawa, Sadayoshi Takami, Toshifumi Katsuragi, Kazue Tanaka
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Publication number: 20140336646Abstract: A high-frequency operation apparatus includes a grasping portion for grasping a treatment target living tissue, an electrode for supplying a high-frequency current to the living tissue, a high-frequency current supplying section that generates the high-frequency current necessary for treatment, a cable section that transmits the high-frequency current, an impedance measuring section for measuring an impedance value of the living tissue, a detecting section that detects that the impedance value reaches an impedance threshold at a time when moisture in the living tissue starts to evaporate, a measuring section that measures an output time of the high-frequency current after the detection, a storing section that stores a set time, and an output control section that performs control for stopping an output when the output time of the high-frequency current reaches the stored set time.Type: ApplicationFiled: July 28, 2014Publication date: November 13, 2014Applicant: OLYMPUS MEDICAL SYSTEMS CORP.Inventors: Takashi IRISAWA, Sadayoshi TAKAMI
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Publication number: 20140236140Abstract: A treatment system includes a holding section that has a heat generation section, a signal output section that supplies a drive signal to the heat generation section, a setting section that sets a target temperature of the heat generation section, a signal detection section that detects the drive signal, a signal extraction section that extracts an extracted signal of a predetermined frequency band from the drive signal detected by the signal detection section, a fault detection section that detects a precursory phenomenon of a fault of the heat generation section when the extracted signal reaches a predetermined threshold, and a control section that controls the drive signal to the heat generation section in a treatment mode for treating the living tissue at the target temperature or in a test mode for detecting the precursory phenomenon.Type: ApplicationFiled: January 23, 2014Publication date: August 21, 2014Applicant: OLYMPUS MEDICAL SYSTEMS CORP.Inventors: Yoshitaka HONDA, Takashi IRISAWA, Sadayoshi TAKAMI, Toshifumi KATSURAGI, Kazue TANAKA
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Patent number: 8808204Abstract: A high-frequency operation apparatus includes a grasping portion for grasping a treatment target living tissue, an electrode for supplying a high-frequency current to the living tissue, a high-frequency current supplying section that generates the high-frequency current necessary for treatment, a cable section that transmits the high-frequency current, an impedance measuring section for measuring an impedance value of the living tissue, a detecting section that detects that the impedance value reaches an impedance threshold at a time when moisture in the living tissue starts to evaporate, a measuring section that measures an output time of the high-frequency current after the detection, a storing section that stores a set time, and an output control section that performs control for stopping an output when the output time of the high-frequency current reaches the stored set time.Type: GrantFiled: August 10, 2012Date of Patent: August 19, 2014Assignee: Olympus Medical Systems Corp.Inventors: Takashi Irisawa, Sadayoshi Takami
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Publication number: 20140214142Abstract: A treatment system includes a holding section that has a heat generation section for applying thermal energy and holds a living tissue, a signal output section that supplies a drive signal to the heat generation section, a signal detection section that detects the drive signal, a signal extraction section that extracts an extracted signal of a predetermined frequency band from the drive signal detected by the signal detection section, a fault detection section that detects when a precursory phenomenon of a fault of the heat generation section the extracted signal reaches or exceeds a predetermined threshold, and a control section that performs control, when the fault detection section detects the precursory phenomenon, so as to reduce power of the drive signal supplied from the signal output section to the heat generation section.Type: ApplicationFiled: January 23, 2014Publication date: July 31, 2014Applicant: OLYMPUS MEDICAL SYSTEMS CORP.Inventors: Yoshitaka HONDA, Takashi IRISAWA, Sadayoshi TAKAMI, Toshifumi KATSURAGI, Kazue TANAKA
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Publication number: 20140207132Abstract: A treatment system includes a treatment instrument that has a pair of freely openable/closable holding sections for applying thermal energy generated by a heat generation section to a living tissue LT held between the holding sections, a signal output section that supplies an alternating current drive signal to the heat generation section, a setting section that sets a target temperature of the heat generation section, a signal detection section that detects a current and a voltage of the drive signal, a control section that controls a temperature of the heat generation section by adjusting power of the drive signal, a signal extraction section that extracts a direct current component from the drive signal detected by the signal detection section and a fault detection section that detects a precursory phenomenon of a fault of the heat generation section based on the extracted signal extracted by the signal extraction section.Type: ApplicationFiled: January 23, 2014Publication date: July 24, 2014Applicant: OLYMPUS MEDICAL SYSTEMS CORP.Inventors: Yoshitaka HONDA, Takashi IRISAWA, Sadayoshi TAKAMI, Toshifumi KATSURAGI, Kazue TANAKA