Browse Prior Art Database

Prosthetic Molding

IP.com Disclosure Number: IPCOM000080890D
Original Publication Date: 1974-Feb-01
Included in the Prior Art Database: 2005-Feb-27
Document File: 2 page(s) / 57K

Publishing Venue

IBM

Related People

Will, PM: AUTHOR

Abstract

A device is provided for taking measurements of parts of the human body for the purpose of manufacturing supports for those body parts.

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Prosthetic Molding

A device is provided for taking measurements of parts of the human body for the purpose of manufacturing supports for those body parts.

Using the measurements, a mould can be made by a conventional three- dimensional milling machine tool and thermoplastic material may be cast in the mold.

To obtain the measurements, a device is provided consisting of a channel member 10 as shown in Fig. 1. This channel has spaced slots 12 formed therein orthogonal to the channel direction. A frame 14 has legs 14A and 14B adapted to fit in slots 12. The frame 14 has plungers 16 spring loaded to the position shown.

The body member to be supported, for example an arm and hand, is placed in the channel member 10 and the legs of the frame 14 are set in a slot 12. Various plungers 16 are raised in accordance with the thickness if the body member, as shown in Fig. 2. Each plunger is connected to a linear potentiometer or other suitable transducer, such as a rotary or digital encoder. Each potentiometer will produce an output signal proportional to its plunger displacement. The output signals can be A/D converted and recorded.

The frame 14 is moved from slot-to-slot until measurement signals have been recorded at all positions.

The measurement signals may be stored on a tape cassette, a disc, or on the tapes or cards to the IBM Magnetic Tape Selectric Typewriter or IBM Magnetic Card Selectric Typewriter. In this latter mode, each multiplexed potentiometer value may be...