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公开(公告)号：US10646140B2
公开(公告)日：2020-05-12
申请号：US15392907
申请日：2016-12-28
Inventor： Souksakhone Bounyong , Shinobu Adachi , Jun Ozawa , Misaka Kimura , Yuya Watanabe , Keiichi Yokoyama
IPC: A61B5/00 , A61B5/11 , G16H50/30 , G16H50/20 , A61B5/0492
Abstract: A risk-of-falling determination apparatus includes a walk information obtainer that obtains walk information of a user, a myoelectric sensor that measures a first myoelectric potential difference on an anterior surface of a thigh of the user and a second myoelectric potential difference on a posterior surface of the thigh, a control circuit that identifies an interval of a stance phase by using the walk information, calculates a degree of co-contraction at a corresponding leg of the user on the basis of the first and second myoelectric potential differences for the stance phase, and determines whether the degree of co-contraction is greater than or equal to a first threshold, and an outputter that outputs a signal indicating that the user has a high risk of falling if the degree of co-contraction is greater than or equal to the first threshold.
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公开(公告)号：US11096857B2
公开(公告)日：2021-08-24
申请号：US16161052
申请日：2018-10-16
Inventor： Kenta Murakami , Stephen William John , Hiroki Takeuchi , Shinobu Adachi
Abstract: An assistance apparatus includes a first wire and a second wire that couple an upper-body belt and a left knee belt to each other on or above a front part and back part of the body of a user, respectively, a third wire and a fourth wire that couple the upper-body belt and a right knee belt to each other on or above the front part and back part of the body of the user, respectively, a motor, a left sensor on the left hand of the user, and a right sensor on the right hand of the user. When a left sensor value of the left sensor is larger than a right sensor value of the right sensor, the tension of the first wire and the second wire is made greater than the tension of the third wire and the fourth wire. When the right sensor value is larger than the left sensor value, the tension of the third wire and the fourth wire is made greater than the tension of the first wire and the second wire.
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公开(公告)号：US10717185B2
公开(公告)日：2020-07-21
申请号：US15982118
申请日：2018-05-17
Inventor： Kenta Murakami , Stephen John , Mayumi Komatsu , Shinobu Adachi
Abstract: An assistance apparatus includes first to eighth wires that couple an upper body belt to be worn on an upper body of a user to a first knee belt and a second knee belt to be worn above a left knee and a right knee of the user, respectively, and a motor. In a case of assisting the user in turning left, the motor generates, when a right leg of the user is in a stance phase, a tension larger than or equal to a first threshold in each of the second, fourth, sixth, and eighth wires at an identical timing. In a case of assisting the user in turning right, the motor generates, when a left leg of the user is in a stance phase, a tension larger than or equal to the first threshold in each of the first, third, fifth, and seventh wires at an identical timing.
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公开(公告)号：US11103413B2
公开(公告)日：2021-08-31
申请号：US16161055
申请日：2018-10-16
Inventor： Stephen William John , Kenta Murakami , Hiroki Takeuchi , Shinobu Adachi
Abstract: An assistance apparatus includes wires, each of which couples an upper-body belt and one of left and right knee belts to each other, and a motor. When the assistance apparatus assists a user in walking backward while carrying an object, the motor generates, in a gait phase of a left leg, a tension greater than or equal to a second threshold value in a second wire during a fifth period other than a first period during which a tension greater than or equal to a first threshold value is generated, and a tension less than the second threshold value in a first wire during a sixth period other than a second period during which a tension greater than or equal to the first threshold value is generated, and generates, in a gait phase of a right leg, a tension greater than or equal to the second threshold value in a fourth wire during a seventh period other than a third period during which a tension greater than or equal to the first threshold value is generated, and a tension less than the second threshold value in a third wire during an eighth period other than a fourth period during which a tension greater than or equal to the first threshold value is generated.
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公开(公告)号：US11103410B2
公开(公告)日：2021-08-31
申请号：US16158350
申请日：2018-10-12
Inventor： Kenta Murakami , Stephen William John , Hiroki Takeuchi , Shinobu Adachi
Abstract: An assistance apparatus includes a first wire and a second wire that couple an upper-body belt and a left knee belt to each other on or above a front part and back part of the body of a user, respectively, a third wire and a fourth wire that couple the upper-body belt and a right knee belt to each other on or above the front part and back part of the body of the user, respectively, a motor, a left sensor on the left hand of the user, and a right sensor on the right hand of the user. When a force is applied to the left sensor and no force is applied to the right sensor, the motor makes the tension of the second wire and the third wire greater than the tension of the first wire and the fourth wire. When a force is applied to the right sensor and no force is applied to the left sensor, the motor makes the tension of the first wire and the fourth wire greater than the tension of the second wire and the third wire.
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Patent Agency Ranking
公开(公告)号：US11344466B2
公开(公告)日：2022-05-31
申请号：US16152456
申请日：2018-10-05
Inventor： Kenta Murakami , Stephen William John , Hiroki Takeuchi , Shinobu Adachi
Abstract: In an assistance apparatus, when assisting a user in walking with an object, a motor generates, in a gait phase of a left leg, a tension less than a second threshold value in a first wire during a fifth period other than a first period during which a tension greater than or equal to a first threshold value is generated in the first wire, and a tension greater than or equal to the second threshold value in a second wire during a sixth period other than a second period during which a tension greater than or equal to the first threshold value is generated in the second wire, and generates, in a gait phase of a right leg, a tension less than the second threshold value in a third wire during a seventh period other than a third period during which a tension greater than or equal to the first threshold value is generated in the third wire, and a tension greater than or equal to the second threshold value in a fourth wire during an eighth period other than a fourth period during which a tension greater than or equal to the first threshold value is generated in the fourth wire.
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公开(公告)号：US10888488B2
公开(公告)日：2021-01-12
申请号：US16257572
申请日：2019-01-25
Inventor： Kenta Murakami , Stephen William John , Mayumi Komatsu , Shinobu Adachi
Abstract: An assistance apparatus includes wires that couple an upper body belt to be worn on an upper body of a user to first and second knee belts to be worn above left and right knees of the user, and a motor. In a case of assisting the user in turning left, the motor generates a tension in second and fourth wires in a period of 65% or more and 100% or less of a first gait phase of a left leg and a period of 0% or more and 20% or less of a second gait phase of the left leg, and generates a tension in sixth and eighth wires in a period of 65% or more and 100% or less of a first gait phase of a right leg and a period of 0% or more and 20% or less of a second gait phase of the right leg.
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公开(公告)号：US10792213B2
公开(公告)日：2020-10-06
申请号：US16034343
申请日：2018-07-12
Inventor： Kenta Murakami , Stephen John , Mayumi Komatsu , Shinobu Adachi
Abstract: An assistance apparatus includes first to eighth wires that couple an upper body belt to be worn on an upper body of a user to a first knee belt and a second knee belt to be worn above a left knee and a right knee of the user, respectively, and a motor. When the assistance apparatus assists the user in turning left, the motor generates a tension larger than or equal to a first threshold in each of the second wire, the fourth wire, the sixth wire, and the eighth wire. When the fourth wire or the second wire is broken, the motor changes the wire in which a tension is generated.
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公开(公告)号：US11246789B2
公开(公告)日：2022-02-15
申请号：US16155914
申请日：2018-10-10
Inventor： Kenta Murakami , Stephen William John , Hiroki Takeuchi , Shinobu Adachi
Abstract: An assistance apparatus includes wires, each of which couples an upper-body belt and one of left and right knee belts to each other, and a motor. To promote implementation of first assistance for a user in walking while carrying an object, the motor generates a tension greater than or equal to a third threshold value in a second wire and a fourth wire, a tension greater than or equal to the third threshold value in the second wire and a third wire, and a tension greater than or equal to the third threshold value in a first wire and the fourth wire. During execution of the operation described above, upon receipt of determination of implementation, to indicate that implementation of the first assistance is determined, the motor generates a tension greater than or equal to a fourth threshold value in the second wire and the fourth wire, a tension greater than or equal to the fourth threshold value in the second wire and the third wire, and a tension greater than or equal to the fourth threshold value in the first wire and the fourth wire.
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公开(公告)号：US11103414B2
公开(公告)日：2021-08-31
申请号：US16161060
申请日：2018-10-16
Inventor： Kenta Murakami , Stephen William John , Hiroki Takeuchi , Shinobu Adachi
Abstract: An assistance apparatus includes a first wire and a second wire that couple an upper-body belt and a left knee belt to each other, respectively, a third wire and a fourth wire that couple the upper-body belt and a right knee belt to each other, respectively, and a motor. When assistance is stopped, the motor is configured to reduce tension of the first wire during a first stop period starting in a boundary period in a first period and ending in a start period of a second period, generate no tension in the second wire during the second period, reduce tension of the third wire during a second stop period starting in a boundary period in a third period and ending in a start period of a fourth period, and generate no tension in the fourth wire during the fourth period.
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