Prosthesis (i.e. – artificial body members) – parts thereof – or ai – Arm or component and actuator or connector therefor – Finger actuator embodied in simulated hand
Reexamination Certificate
2009-05-15
2011-11-08
Snow, Bruce E (Department: 3738)
Prosthesis (i.e., artificial body members), parts thereof, or ai
Arm or component and actuator or connector therefor
Finger actuator embodied in simulated hand
Reexamination Certificate
active
08052761
ABSTRACT:
A voluntary opening prosthetic split hook terminal device is provided with an adjustable pinch force, functional grasping contours and illumination capabilities. Embodiments of the present invention include a tensioning mechanism that permits adjustment of the tension of a spring member to increase or decrease the pinching force of the device. The tensioning mechanism may be repositioned among multiple positions to vary the tension in a spring member. Movement of the tensioning mechanism utilizes principles of mechanical leverage in a way such that the force applied by the spring member does not need to be directly opposed in order to reposition the tensioning mechanism and the tensioning device will automatically lock into a selected position. Additional embodiments include digits with dual internal edges and logarithmic spiral contours for enhanced grasping of objects. Still further embodiments include illumination for functional and aesthetic purposes.
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Invisible Hand Enterprises, LLC
Sheridan & Ross P.C.
Snow Bruce E
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