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Biomedical subjects

J C Cool

Publications and source records attributed to J C Cool.

6 recordsLinked to original sources
PubMed1989

Biomechanics of orthoses for the subluxed shoulder.

Based on biomechanics several operational principles for the neutralization of a shoulder subluxation are described. The pros and cons of the operational principles are discussed. A detailed analysis of the forces acting on the upper and lower arm indicates a preference for only one of the operational principles and explains why the arm sling and hemisling fail in the elimination of subluxation. With the operational principle selected a shoulder orthosis has been developed. Clinical results are given.

Biomechanical Phenomena↗
PubMed1976

An elbow orthosis.

An elbow orthosis for unilaterally handicapped persons has been developed. The operating principles and construction of the orthosis are described and its important parameters are determined. The procedure of parameter adjustment is given in detail and the area of application is indicated. Preliminary clinical results are discussed.

Elbow↗
PubMedDate not supplied

Body-powered hand prosthesis with low operating power for children.

For unilateral below-elbow amputated children a new elbow-controlled hand prosthesis has been developed. Since the triceps of young children have insufficient power to activate normal spring-closing hands, a special mechanism with low operating power has been developed for this prosthesis. A stiff spring gives a good gripping force. When the elbow is slightly extended this spring is switched off, and by further extension the hand is opened against a weak spring. So far, six children have used this special prosthesis. Their initial enthusiasm resulted in an improved system, which is now being designed.

Artificial Limbs↗