A stimulator pad includes a layer of support material and at least one stimulator node secured to and supported by the support layer, the stimulator node comprising a housing having one end region secured relative to the support layer and the other end defining an aperture which in use confronts a body surface and in which at least one pressure member includes a plurality of pressure member components is resiliently located, resilient biasing device provided within the housing to act between the support layer or a base portion of the housing and at least some of the pressure member components to urge the at least some of the pressure member components to protrude through the housing aperture, and a layer of flexible cover material which extends over at least one of the pressure members.
1. A stimulator pad in the shape of an insole for footwear and having a sole region and a heel region, said stimulator pad comprising:
a flexible support comprising two layers of flexible material bonded together to form a unitary structure, and
a plurality of stimulator nodes secured to and supported by the sole region of the flexible support, said stimulator nodes each comprising a housing having at one end a base region secured relative to the flexible support and the other, distal, end defining an aperture which in use confronts a user's foot and in which there is resiliently located a pressure member comprising a plurality of pressure member components each for acting against the user's foot, the base region of each housing extending outwards in the form of a flange which lies sandwiched between said two layers of flexible support material with the housing of each stimulator node extending through a respective one of a plurality of apertures in an upper of said two layers, resilient biasing means provided within the housing to act between the flexible support or said base region of the housing and at least some of said pressure member components to urge said at least some of the pressure member components to protrude at the distal end of the housing,
each said housing being more resistant to compression than the assembly of the pressure member components and resilient biasing means contained within said housing, said distal end of the housing being free to deflect laterally relative to the base region thereof, a resilient exercise device, comprising a hollow body of elastomeric material, secured to said flexible support and positioned at the heel region of the insole and adapted to act to promote circulation in use of footwear incorporating the stimulator pad as an insole, and a layer of flexible cover material secured to the upper layer of support material, said cover material extending over said pressure members at each stimulator node and being apertured at the heel region whereby the resilient exercise device extends through said cover layer for direct contact by a user.
2. The stimulator pad according to claim 1 , wherein the flexible support layer is substantially incompressible.
3. The stimulator pad according to claim 1 , wherein the flexible support is substantially resilient and flexible material.
4. The stimulator pad according to claim 1 , wherein the biasing means comprises a mechanical spring.
5. The stimulator pad according to claim 1 , wherein the biasing means comprises an element of a resilient material.
6. The stimulator pad according to claim 1 , wherein the biasing means is secured to the flexible support.
7. The stimulator pad according to claim 1 , wherein the housing comprises a base which extends inwards and the biasing means is secured to said base.
8. The stimulator pad according to claim 1 , wherein an end of the biasing means has a pressure member secured thereto.
9. The stimulator pad according to claim 1 , wherein the pressure member protrudes but does not pass wholly through the housing aperture.
10. The stimulator pad according to claim 1 , wherein the housing is more resistant to compression than the assembly of the pressure member and the resilient biasing means.
11. The stimulator pad according to claim 1 , wherein the distal, apertured end of the housing is free to deflect laterally relative to said base region of the housing.
12. The stimulator pad according to claim 1 , and comprising pressure member components of a spherical or part-spherical shape.
13. The stimulator pad according to claim 1 , wherein each said pressure member component is secured relative to the resilient biasing means.
14. The stimulator pad according to claim 1 , wherein at least some of a plurality of pressure member components associated with a common housing are moveable against the biasing means independently of one or more other pressure member components of said plurality.
15. The stimulator pad according to claim 1 , wherein the housing is substantially of a frusto conical shape.