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OLYMPUS CORP

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Patent Issued for Energy Treatment System, Energy Control Device, And Energy Treatment Instrument (USPTO 10,363,083): Olympus Corporation

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08/14/2019 | 04:50pm EDT

2019 AUG 14 (NewsRx) -- By a News Reporter-Staff News Editor at Energy Business Daily -- A patent by the inventors Takashino, Tomoyuki (Fuchu, Japan); Takei, Yusuke (Hino, Japan); Tanaka, Kazuhiro (Hachioji, Japan), filed on May 24, 2017, was published online on August 12, 2019, according to news reporting originating from Alexandria, Virginia, by NewsRx correspondents.

Patent number 10,363,083 is assigned to Olympus Corporation (Hachioji-shi, Tokyo, Japan).

The following quote was obtained by the news editors from the background information supplied by the inventors: “The present invention relates to an energy treatment system in which energy is supplied from an energy control device to an energy treatment instrument, and an end effector, which is provided in the energy treatment instrument, treats a treated target by using the supplied energy. In addition, the invention relates to an energy control device and an energy treatment instrument, which are provided in this energy treatment system.

“U.S. Patent Application Publication No. 2009/248002 discloses an energy treatment instrument which is provided with an end effector that grasps a treated target between two (a pair of) clamps. In this energy treatment instrument, an electrode is provided in each of the clamps, and high-frequency electric energy (first electric energy) is supplied from an energy control device to the electrodes. Thereby, a high-frequency current flows between the electrodes through a treated target that is grasped, and the treated target is denatured. In addition, in the end effector, a heating body is provided in one of the clamps, and heat generating electric energy (second electric energy) is supplied to the heating body. Thereby, heat is generated in the heating body. When the output of the high-frequency electric energy is started, the output of the heat generating electric energy is stopped, or the output of the heat generating electric energy is controlled in such a state that the temperature of the heating body does not rise to such a degree as to denature the treated target. In addition, if the output of the high-frequency electric energy is started, a tissue impedance of the treated target is detected with the passing of time. Based on the tissue impedance reaching a threshold value or above, the electric power of the heat generating electric energy is made greater than before the tissue impedance reaches the threshold value. Thereby, the temperature of the heating body rises up to such a degree as to denature the treated target, and the treated target is denatured by the heat generated in the heating body. By using the high-frequency current and the heat generated in the heating body, the treated target is denatured, and thereby the treated target is coagulated and sealed.”

In addition to the background information obtained for this patent, NewsRx journalists also obtained the inventors’ summary information for this patent: “According to one aspect of the invention, an energy treatment system including: an end effector including a pair of clamps which are openable and closable relative to each other, the end effector being configured to be capable of grasping a treated target between the clamps, each of the clamps including an electrode; an energy output section configured to be capable of outputting first electric energy and second electric energy, configured to pass a high-frequency current between the electrodes through the treated target grasped between the clamps by supplying the first electric energy to the electrodes of the end effector, and configured to actuate the end effector so as to generate, in the end effector, heat for use in a treatment of the treated target by outputting the second electric energy; and a controller configured to control outputs of the first electric energy and the second electric energy from the energy output section, configured to continuously output the second electric energy from the energy output section in such a state that the treated target is continuously denatured from an output start of the second electric energy by the heat generated by an actuation of the end effector, configured to output the first electric energy from the energy output section at the same time as the second electric energy in at least a part of a period during which the heat generated by the output of the second electric energy is continuously denaturing the treated target, and configured to make, based on judging that the treated target entered a predetermined state in a state in which the heat is continuously denaturing the treated target, an electric power of the first electric energy greater than before a time point of a judgment that the treated target entered the predetermined state.

“According to one another aspect of the invention, an energy control device configured to control a supply of energy to an energy treatment instrument, the energy instrument being provided with an end effector including a pair of clamps which are openable and closable relative to each other, the end effector being configured to be capable of grasping a treated target between the clamps, each of the clamps including an electrode, the energy control device including: an energy output section configured to be capable of outputting first electric energy and second electric energy, configured to pass a high-frequency current between the electrodes through the treated target grasped between the clamps by supplying the first electric energy to the electrodes of the end effector, and configured to actuate the end effector so as to generate, in the end effector, heat for use in a treatment of the treated target by outputting the second electric energy; and a controller configured to control outputs of the first electric energy and the second electric energy from the energy output section, configured to continuously output the second electric energy from the energy output section in such a state that the treated target is continuously denatured from an output start of the second electric energy by the heat generated by an actuation of the end effector, configured to output the first electric energy from the energy output section at the same time as the second electric energy in at least a part of a period during which the heat generated by the output of the second electric energy is continuously denaturing the treated target, and configured to make, based on judging that the treated target entered a predetermined state in a state in which the heat is continuously denaturing the treated target, an electric power of the first electric energy greater than before a time point of a judgment that the treated target entered the predetermined state.

“According to one another aspect of the invention, an energy treatment instrument which is supplied with energy from an energy control device, the energy control device including an energy output section configured to be capable of outputting first electric energy and second electric energy, and a controller configured to control outputs of the first electric energy and the second electric energy from the energy output section, the energy treatment instrument including: an end effector including a pair of clamps which are openable and closable relative to each other, the end effector being configured to be capable of grasping a treated target between the clamps, each of the clamps including an electrode, wherein the electrodes of the end effector are supplied with the first electric energy from the energy output section, thereby passing a high-frequency current between the electrodes through the treated target grasped between the clamps, the energy treatment instrument is supplied with the second electric energy from the energy output section, thereby actuating the end effector, and generating, in the end effector, heat for use in a treatment of the treated target, in the end effector, by the second electric energy being continuously output from the energy output section, the treated target is continuously denatured from an output start of the second electric energy by the heat generated by an actuation of the end effector, the energy treatment instrument is supplied with the first electric energy at the same time as the second electric energy from the energy output section, in at least a part of a period during which the heat generated by the supply of the second electric energy is continuously denaturing the treated target, and in the electrodes of the end effector, based on the controller judging that the treated target entered a predetermined state in a state in which the heat is continuously denaturing the treated target, an electric power of the first electric energy supplied from the energy output section is made greater than before a time point of a judgment that the treated target entered the predetermined state.

“Advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The advantages of the invention may be realized and obtained by means of the instrumentalities and combinations particularly pointed out hereinafter.”

The claims supplied by the inventors are:

“What is claimed is:

“1. An energy treatment system comprising: an end effector that includes a pair of clamps that are openable and closable relative to each other, the end effector being configured to grasp a treated target between the clamps; a pair of electrodes that is provided in the end effector, first electric energy being supplied to the electrodes so as to pass a high-frequency current between the electrodes and through the treated target that is grasped between the clamps; an electric element that is connected to the end effector, second electric energy being supplied to the electric element to actuate the end effector by generating heat in the end effector; and a controller that is configured to: output the second electric energy to the electric element from a first time point so as to denature, from the first time point, the treated target by the heat generated by the actuation of the end effector, judge whether or not the treated target entered a predetermined state after the first time point, the judgment being based on a dehydration state of the treated target, and execute one of: (i) starting an output of the first electric energy to the electrodes at a second time point, which is at the same time as or after the first time point, and then increasing the output of the first electric energy after the second point based on judging that the treated target entered the predetermined state, and (ii) starting an output of the first electric energy to the electrodes after the first time point based on judging that the treated target entered the predetermined state.

“2. The energy treatment system of claim 1, wherein, when the output of the first electric energy is started at the second time point, the controller is further configured to: detect a tissue impedance of the treated target after the second time point based on the output of the first electric energy, judge the dehydration state of the treated target based on the tissue impedance, and judge that the treated target entered the predetermined state after the second time point based on a determination that the tissue impedance reached an impedance threshold value or more or a determination that the tissue impedance changed into a state of gradually increasing with time.

“3. The energy treatment system of claim 1, wherein the controller is further configured to: detect the dehydration state of the treated target based on a time with reference to the first time point, and judge that the treated target entered the predetermined state based on a determination that a change-over time or more has passed since the first time point.

“4. The energy treatment system of claim 1, wherein: the electric element includes a heating body that is provided in the end effector, the heating body being configured to convert the second electric energy to the heat by being supplied with the second electric energy, and the controller is further configured to: detect a resistance value of the heating body after the first time point on the output of the second electric energy, judge the dehydration state of the treated target based on the resistance value, and judge that the treated target entered the predetermined state after the first time point based on a determination that the resistance value reached a resistance threshold value or more or a determination that the resistance value changed into a state of being constant with time.

“5. The energy treatment system of claim 1, wherein: the pair of clamps includes a first clamp and a second clamp, each of the first clamp and the second clamp includes a grasping surface that is configured to contact the treated target that is grasped, and includes a back surface that faces a side opposite to the grasping surface, at least a part of the grasping surface of the first clamp is formed by the electrode, and the first clamp includes a heating body as the electric element, the heating body being provided on a back surface side of the first clamp with respect to the electrode, the heating body being configured to convert the second electric energy to the heat by being supplied with the second electric energy, and being configured to transmit the generated heat to the grasping surface through the electrode.

“6. The energy treatment system of claim 5, wherein the electrode of the first clamp includes a ridge portion that extends from a proximal portion to a distal portion of the first clamp on the grasping surface, the ridge portion being configured to be abuttable on the grasping surface of the second clamp, in a state in which the pair of clamps are closed relative to each other.

“7. The energy treatment system of claim 1, wherein: the electric element incudes a heating body that is provided in the end effector, the heating body being configured to convert the second electric energy to the heat by being supplied with the second electric energy, and the controller is further configured to output the second electric energy to the heating body from the first time point by constant temperature control by which a temperature of the end effector is kept constant with time at a reference temperature, the treated target being denatured at the reference temperature.

“8. The energy treatment system of claim 1, wherein: the electric element includes a heating body that is provided in the end effector, the heating body being configured to convert the second electric energy to the heat by being supplied with the second electric energy, and the controller is further configured to output the second electric energy to the heating body in a period ranging from a third time point, before the first time point, to the first time point by control by which a temperature of the end effector is increasing with time in a range that is an initial temperature or higher and a reference temperature of lower, the treated target being denatured at the reference temperature.

“9. An energy control device configured to control a supply of energy to an energy treatment instrument, the energy treatment instrument being provided with an end effector including a pair of clamps that are openable and closable relative to each other, the end effector being configured to grasp a treated target between the clamps, the end effector including a pair of electrodes such that first electric energy is supplied to the electrodes so as to pass a high-frequency current between the electrodes and through the treated target that is grasped between the clamps, the energy treatment instrument including an electric element such that second electric energy is supplied to the electric element to actuate the end effector by generating heat in the end effector, the energy control device comprising: a controller that is configured to: output the second electric energy to the electric element from a first time point so as to denature, from the first time point, the treated target by the heat generated by the actuation of the end effector, judge whether or not the treated target entered a predetermined state after the first time point, the judgment being based on a dehydration state of the treated target, and execute one of: (i) starting an output of the first electric energy to the electrodes at a second time point, which is at the same time as or after the first time point, and then increasing the output of the first electric energy after the second time point based on judging that the treated target entered the predetermined state, and (ii) starting an output of the first electric energy to the electrodes after the first time point based on judging that the treated target entered the predetermined state.

“10. The energy control device of claim 9, wherein, when the output of the first electric energy is started at the second time point, the controller is further configured to: detect a tissue impedance of the treated target after the second time point based on the output of the first electric energy, judge the dehydration state of the treated target based on the tissue impedance, and judge that the treated target entered the predetermined state after the second time point based on a determination that the tissue impedance reached an impedance threshold value or more or a determination that the tissue impedance changed into a state of gradually increasing with time.

“11. The energy control device of claim 9, wherein the controller is further configured to: detect the dehydration state of the treated target based on a time with reference to the first time point, and judge that the treated target entered the predetermined state based on a determination that a change-over time or more has passed since the first time point.

“12. The energy control device of claim 9, wherein: the electric element includes a heating body that is provided in the end effector, the heating body being configured to convert the second electric energy to the heat by being supplied with the second electric energy, and the controller is further configured to: detect a resistance value of the heating body after the first time point based on the output of the second electric energy, judge the dehydration state of the treated target based on the resistance value, and judge that the treated target entered the predetermined state after the first time point based on a determination that the resistance value reached a resistance threshold value or more or a determination that the resistance value changed into a state of being constant with time.

“13. An energy treatment instrument that is supplied with energy and that is used with an energy control device, the energy control device including a controller configured to control output of first electric energy and second electric energy, the energy treatment instrument comprising: an end effector that includes a pair of clamps that are openable and closable relative to each other, the end effector being configured to grasp a treated target between the clamps, a pair of electrodes that are provided in the end effector, the first electric energy being supplied to the electrodes so as to pass a high-frequency current between the electrodes and through the treated target that is grasped between the clamps, and an electric element that is connected to the end effector, the second electric energy being supplied to the electric element to actuate the end effector by generating heat in the end effector, wherein: by the second electric energy being output to the electric element, from a first time point, the treated target is denatured, from the first time point, by the heat generated by the actuation of the end effector, the output of the second electric energy is continued from the first time point while the controller judges whether or not the treated target entered a predetermined state, the judgment being based on a dehydration state of the treated target, and one of the following is satisfied: (i) output of the first electric energy to the electrodes is started at a second time point, which is at the same time as or after the first time point, and then, output of the first electric energy to the electrodes is increased after the second time point based on the controller judging that the treated target entered the predetermined state, and (ii) output of the first electric energy to the electrodes is started after the first time point based on the controller judging that the treated target entered the predetermined state.

“14. The energy treatment instrument of claim 13, wherein: the pair of clamps includes a first clamp and a second clamp, each of the first clamp and the second clamp includes a grasping surface that is configured to contact the treated target that is grasped, and includes a back surface that faces a side opposite to the grasping surface, at least a part of the grasping surface of the first clamp is formed by the electrode, and the first clamp includes a heating body as the electric element, the heating body being provided on a back surface side of the first clamp with respect to the electrode, the heating body being configured to convert the second electric energy to the heat by being supplied with the second electric energy, and being configured to transmit the generated heat to the grasping surface through the electrode.

“15. The energy treatment instrument of claim 14, wherein the electrode of the first clamp includes a ridge portion that extends from a proximal portion to a distal portion of the first clamp on the grasping surface, the ridge portion being configured to be abuttable on the grasping surface of the second clamp, in a state in which the pair of clamps are closed relative to each other.

“16. An actuating method of an energy control device, the energy control device being configured to control a supply of energy to an energy treatment instrument, the energy treatment instrument being provided with an end effector that includes a pair of clamps that are openable and closable relative to each other, the end effector being configured to grasp a treated target between the clamps and the end effector including a pair of electrodes, and the energy treatment instrument including an electric element, first electric energy being supplied to the electrodes so as to pass a high-frequency current between the electrodes and through the treated target that is grasped between the clamps, and second electric energy being supplied to the electric element so as to actuate the end effector by generating heat in the end effector, the actuating method comprising: outputting the second electric energy to the electric element from a first time point so as to denature, from the first time point, the treated target by the heat generated by the actuation of the end effector; judging whether or not the treated target entered a predetermined state after the first time point, the judgment being based on a dehydration state of the treated target; and executing one of: (i) starting an output of the first electric energy to the electrodes at a second time point, which is at the same time as or after the first time point, and then increasing the output of the first electric energy after the second time point based on judging that the treated target entered the predetermined state, and (ii) starting an output of the first electric energy to the electrodes after the first time point based on judging that the treated target entered the predetermined state.”

URL and more information on this patent, see: Takashino, Tomoyuki; Takei, Yusuke; Tanaka, Kazuhiro. Energy Treatment System, Energy Control Device, And Energy Treatment Instrument. U.S. Patent Number 10,363,083, filed May 24, 2017, and published online on August 12, 2019. Patent URL: http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=10,363,083.PN.&OS=PN/10,363,083RS=PN/10,363,083

(Our reports deliver fact-based news of research and discoveries from around the world.)

Copyright © 2019 NewsRx LLC, Energy Business Daily, source Science Newsletters

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