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公开(公告)号：US11013622B2
公开(公告)日：2021-05-25
申请号：US15536240
申请日：2015-12-18
摘要： A prosthetic joint and a method of controlling dorsiflexion and plantarflexion of the hydraulic prosthetic ankle joint. The method includes generating ground reaction forces with a hydraulic prosthetic ankle, wherein the prosthetic hydraulic ankle comprises a first chamber and a second chamber, and the ankle is connected to a prosthetic foot; rotating the prosthetic foot in response to the ground reaction force; transferring fluid between the forward and rear chambers in response to rotation of the foot; providing a feature to occlude or partially occlude the fluid transfer between chambers; providing a non-electronic mechanism for controlling the flow responsive to both a position of the joint and a rate of change of position of the joint, and wherein the mechanism is arranged such that a dwell at a particular joint location or locations will occlude the flow path.
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公开(公告)号：US20180078389A1
公开(公告)日：2018-03-22
申请号：US15809787
申请日：2017-11-10
CPC分类号： A61F2/6607 , A61F2/68 , A61F2002/5003 , A61F2002/5018 , A61F2002/6854 , A61F2002/701 , A61F2002/704 , A61F2002/745 , A61F2002/748 , A61F2002/7625 , A61F2002/7635 , A61F2002/764 , A61F2002/7645 , A61F2002/7665
摘要： A prosthetic foot assembly is disclosed. The assembly includes a pivoting ankle joint with a hydraulic system, a prosthetic foot connected to the distal side of the ankle joint, and, at the proximal side, the ankle joint includes a transducer with pyramid adaptor for attaching to a pylon. The ankle joint sensor provides data collection during the stance and optionally, the swing, phases of walking using, for example, strain gages and accelerometers. Also disclosed are methods for real-time feature extraction. Key parameters are captured to which are applied linear, fuzzy logic, neural net, or generic algorithms to determine current state (walking flat, uphill, downhill etc.) in real time and execute changes to the angle between the ankle and foot almost instantaneously based on those parameters.
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公开(公告)号：US11090172B2
公开(公告)日：2021-08-17
申请号：US16002968
申请日：2018-06-07
发明人： Richard Geiger , David Kraige , Jeremy Frank , Jacob Loverich , Ben Gilbert Macomber , Adam Arabian
摘要： A valve includes a case comprising a pin bore, a pin configured to move axially in the pin bore, wherein the pin seals the pin bore, a first channel in communication with the pin bore, a second channel in communication with the pin bore, wherein the second channel comprises a restrictor at a location offset from the first channel, a third channel in communication with the pin bore, wherein the third channel comprises a check valve, and the second channel and third channel are in communication with each other. The valve can be a miniature valve that is used in the control of hydraulic fluid in prosthesis, such as a prosthetic ankle joint.
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公开(公告)号：US10702403B2
公开(公告)日：2020-07-07
申请号：US15625741
申请日：2017-06-16
摘要： A prosthetic joint and a method of controlling dorsiflexion and plantarflexion of the hydraulic prosthetic ankle joint. The method includes generating ground reaction forces with a hydraulic prosthetic ankle, wherein the prosthetic hydraulic ankle comprises a first chamber and a second chamber, and the ankle is connected to a prosthetic foot; rotating the prosthetic foot in response to the ground reaction force; transferring fluid between the forward and rear chambers in response to rotation of the foot; providing a feature to occlude or partially occlude the fluid transfer between chambers; providing a non-electronic mechanism for controlling the flow responsive to both a position of the joint and a rate of change of position of the joint, and wherein the mechanism is arranged such that a dwell at a particular joint location or locations will occlude the flow path.
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公开(公告)号：US10314724B2
公开(公告)日：2019-06-11
申请号：US15809787
申请日：2017-11-10
摘要： A prosthetic foot assembly is disclosed. The assembly includes a pivoting ankle joint with a hydraulic system, a prosthetic foot connected to the distal side of the ankle joint, and, at the proximal side, the ankle joint includes a transducer with pyramid adaptor for attaching to a pylon. The ankle joint sensor provides data collection during the stance and optionally, the swing, phases of walking using, for example, strain gages and accelerometers. Also disclosed are methods for real-time feature extraction. Key parameters are captured to which are applied linear, fuzzy logic, neural net, or generic algorithms to determine current state (walking flat, uphill, downhill etc.) in real time and execute changes to the angle between the ankle and foot almost instantaneously based on those parameters.
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公开(公告)号：US10278836B2
公开(公告)日：2019-05-07
申请号：US13886100
申请日：2013-05-02
摘要： A hydraulic device includes a first plate that pivots in a first direction, a second plate that pivots in a second direction orthogonal to the first direction, a first hydraulic system comprising a first cylinder and piston, a second cylinder and piston and, channels connecting the first cylinder to the second cylinder, the first hydraulic system filled with hydraulic fluid, wherein the transfer of fluid between the first cylinder and second cylinder pivots the first plate, and a second hydraulic system comprising a third cylinder and piston, a fourth cylinder and piston and, channels connecting the third cylinder to the fourth cylinder, the second hydraulic system filled with hydraulic fluid, wherein the transfer of fluid between the third cylinder and fourth cylinder pivots the second plate.
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公开(公告)号：US09993355B2
公开(公告)日：2018-06-12
申请号：US14213293
申请日：2014-03-14
发明人： Richard Geiger , David Kraige , Jeremy Frank , Jacob Loverich , Ben Gilbert Macomber , Adam Arabian
CPC分类号： A61F2/6607 , A61F2002/745 , A61F2002/748 , F15B7/02 , F15B13/06 , Y10T137/0318 , Y10T137/877
摘要： A valve includes a case comprising a pin bore, a pin configured to move axially in the pin bore, wherein the pin seals the pin bore, a first channel in communication with the pin bore, a second channel in communication with the pin bore, wherein the second channel comprises a restrictor at a location offset from the first channel, a third channel in communication with the pin bore, wherein the third channel comprises a check valve, and the second channel and third channel are in communication with each other. The valve can be a miniature valve that is used in the control of hydraulic fluid in prosthesis, such as a prosthetic ankle joint.
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公开(公告)号：US20150134081A1
公开(公告)日：2015-05-14
申请号：US14213293
申请日：2014-03-14
发明人： Richard Geiger , David Kraige , Jeremy Frank , Jacob Loverich , Ben Gilbert Macomber , Adam Arabian
CPC分类号： A61F2/6607 , A61F2002/745 , A61F2002/748 , F15B7/02 , F15B13/06 , Y10T137/0318 , Y10T137/877
摘要： A valve includes a case comprising a pin bore, a pin configured to move axially in the pin bore, wherein the pin seals the pin bore, a first channel in communication with the pin bore, a second channel in communication with the pin bore, wherein the second channel comprises a restrictor at a location offset from the first channel, a third channel in communication with the pin bore, wherein the third channel comprises a check valve, and the second channel and third channel are in communication with each other. The valve can be a miniature valve that is used in the control of hydraulic fluid in prosthesis, such as a prosthetic ankle joint.
摘要翻译： 阀包括壳体，其包括销孔，销构造成在销孔中轴向移动，其中销密封销孔，与销孔连通的第一通道，与销孔连通的第二通道，其中 所述第二通道包括在偏离所述第一通道的位置处的限流器，与所述销孔连通的第三通道，其中所述第三通道包括止回阀，并且所述第二通道和所述第三通道彼此连通。 阀可以是用于控制假体中的液压流体的微型阀，例如假肢踝关节。
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