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Actuator-damper unit

A technology of actuators and dampers, which can be used in passive exercise equipment, equipment to help people walk, program-controlled manipulators, etc., and can solve problems such as high space requirements for external pressure accumulators

Active Publication Date: 2021-09-10
OTTO BOCK HEALTHCARE PROD GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this construction is the relatively high space requirement for the external pressure accumulator

Method used

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  • Actuator-damper unit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0040] figure 1 A schematic diagram of an actuator-damper unit 100 for use in a prosthetic or orthotic device, such as a prosthetic or orthotic, is shown. The actuator-damper unit (hereinafter referred to as AD unit) has a housing 10 in which a cylinder 12 is formed. In the illustrated embodiment, the cylinder 12 has a circular cross section and itself receives a first piston 30 which is displaceably arranged along the cylinder wall. The shape of the piston can also be irregular and can have a non-circular cross section. Arranged on the first piston 30 is a piston rod 35 whose first end 351 is connected to the first piston 30 . A second end 352 of the piston rod 35 opposite the first end 351 can be fastened to a prosthetic or orthotic device. The housing 10 has fastening means 11 by means of which the housing 10 can be fastened to another prosthetic or orthopedic component. If the two orthopedic or prosthetic components are displaced relative to each other, the piston 30 i...

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PUM

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Abstract

The invention relates to an actuator-damper unit for use in an orthopedic or prosthetic device (1, 2, 3; 300), the actuator-damper unit having features that can be fixed to said device (1, 3; 2, 3, 300) on the housing (10), in which a cylinder (12) is constructed, in which the first piston (30) is displaceably disposed and coupled with the piston rod (35) , the piston rod is arranged with a first end (351) on the first piston (30) and can be connected with the orthopedic or prosthetic device (1, 2, 3, 300) with a second end (352) coupling, wherein the first piston (30) separates the two fluid chambers (41, 42) in the cylinder (12) from each other and forms a piston-cylinder unit (100), wherein at least one other A piston (32, 33) is coupled to the first piston (30) for forming at least one further volume-variable fluid chamber (43, 44, 45, 46).

Description

technical field [0001] The invention relates to an actuator-damper unit for use in an orthopedic or prosthetic device, said actuator-damper unit having a housing that can be fastened to the device, in which housing a a cylinder in which the first piston is movably arranged and coupled to a piston rod which is arranged with a first end on the first piston and which can be connected with the orthopedic or prosthetic with a second end The device is coupled, wherein the first piston separates the two fluid chambers in the cylinder from each other and forms a piston-cylinder unit. Orthopedic or prosthetic devices are to be understood in particular as orthoses, prostheses and exoskeletons. Actuator-damper units can also be used in robotics. Background technique [0002] In orthopedic or prosthetic devices, usually two components are displaced relative to each other, for example in an orthopedic or prosthetic joint the upper part and the lower part pivot relative to each other ab...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61F2/64
CPCA61F2/64A61F2/60A61F2/70A61F2/74A61F2/748A61F2005/0155A61F2005/0169A61H3/00A61F2002/5073B25J9/0006A61H1/0274A61F2002/5006A61F2002/503A61F2002/5038A61F2002/7635A61F2002/7645
Inventor H·希马R·奥伯格M·赛伊
Owner OTTO BOCK HEALTHCARE PROD GMBH