Back to results
US 2017/0290681 A1Published application
Portable Prosthetic Hand With Soft Pneumatic Fingers
AssigneePresident and Fellows of Harvard College
InventorsBobak MOSADEGH, Brandon Grant GERBERICH, George M. WHITESIDES
Life of this patent
Estimating the term…
Abstract
A finger actuator, includes a plurality of fluidically interconnected inflatable chambers, wherein each chamber comprises outer walls having an embedded extensible layer selected to constrain radial expansion and freestanding inner walls; and an inextensible layer connected to the chambers at a base of the chambers, the inextensible layer comprising a flexible polymer and having an embedded inextensible layer that extends along the length of the finger actuator.
Claims19
A finger actuator, comprising:
- a plurality of fluidically interconnected extensible segments separated from adjacent extensible segments by an inextensible hinge, wherein:
- the extensible segments comprise at least one fluidically interconnected inflatable chamber, and
- an inextensible layer connected to the plurality of fluidically interconnected extensible segments at a base of the extensible segments, the inextensible layer comprising a flexible layer and an inextensible material that extends along the length of the plurality of fluidically interconnected extensible segments.
A method of operating a finger actuator comprising:
- providing a first finger actuator secured to a base, wherein the finger actuator comprises:
- a plurality of fluidically interconnected extensible segments separated from adjacent extensible segments by an inextensible hinge, wherein the extensible segments comprise at least one fluidically interconnected inflatable chamber, and
- an inextensible layer connected to the plurality of fluidically interconnected extensible segments at a base of the extensible segments, the inextensible layer comprising a flexible layer having an inextensible material that extends along the length of the plurality of fluidically interconnected extensible segments;
- and
- providing instructions to a valve housed in the base to open, wherein air pressure from an air compressor housed in the base pressurizes at least one finger actuator, thereby causing the finger actuator to bend.
2 more elements
Dependencies are inferred from the claim text.