Abstract: The invention provides a hand held hair treatment device for the stimulation of hair growth on the scalp, which device comprises: a housing which includes a handle portion and a head portion; a plurality of hollow tines, each tine having a proximal end affixed to the head portion, a longitudinal length extending from the head portion and a distal end terminating in a tip section; a light source disposed within the housing and configured to output light; light guide means for channelling the light from the light source through the tines and along a light guide means axis; and optical devices which are located at the distal ends of the tines; characterised in that the optical devices are configured to vector light which is incident upon them transversely to the general light guide means axis.

Abstract: The invention provides a hand held hair treatment device for the stimulation of hair growth on the scalp, which device comprises: a housing which includes a handle portion and a head portion; a plurality of hollow tines, each tine having a proximal end affixed to the head portion, a longitudinal length extending from the head portion and a distal end terminating in a tip section; a light source disposed within the housing and configured to output light; light guide means for channelling the light from the light source through the tines and along a light guide means axis; and optical devices which are located at the distal ends of the tines; characterised in that the optical devices are configured to vector light which is incident upon them transversely to the general light guide means axis.

Abstract: The invention provides a hand held hair treatment device for the stimulation of hair growth on the scalp, which device comprises: a housing which includes a handle portion and a head portion; a plurality of hollow tines, each tine having a proximal end affixed to the head portion, a longitudinal length extending from the head portion and a distal end terminating in a tip section; a light source disposed within the housing and configured to output light; light guide means for channeling the light from the light source through the tines, and optical devices which are located at the distal ends of the tines; characterised in that the optical devices are configured to spread light which is incident upon them in an outward direction from the distal ends of the tines and onto the surface of the scalp to be treated.

Abstract: The invention provides probes and primers for amplifying certain regions of genes for structural proteins of cartilage and methods for detecting mutations in these genes isolated from the nucleic acid of cells suspected of exhibiting mutant structural protein gene expression or having mutant structural protein genes. The invention also provides methods for determining a genetic predisposition for a disease that alters the structure or function of cartilage because of a mutation in a gene for a structural protein of cartilage in a mammal.