Preform and device for cooperation with a lower limb member, apparatus and method for manufacturing the device

摘要

The invention concerns a preform and a device for cooperating with a lower limb member so as to provide a correction to the limb member. The invention also concerns a method and an apparatus for manufacturing the device. The preform comprises a base, a surface linked to the top face of the base, for cooperation with the lower limb; and at least one inflatable chamber formed by a flexible and liquid-impervious membrane sealed to the concave top face of the base. Injection of a fluid composition of curable material, while the lower limb member is in contact with the surface so as to inflate the at least one inflatable chamber is performed until the correction is obtained, the composition being then cured in-situ into a cured material.

主权项

1. A device for cooperating with a lower limb member comprising:
a base having a concave top face and a second face, the base being provided with at least one channel, said at least one channel having a first end opening on the top face, and a second end opening on the second face; a surface linked to the top face of the base, for cooperation with the limb member; and at least one inflatable chamber formed by a flexible and liquid-impervious membrane sealed to the concave top face of the base,the first end of said at least one channel being in fluid communication with said inflatable chamber, and the second end of said at least one channel being configured for connecting with an injection device, thereby allowing injection of a fluid composition of curable material while the lower limb member is in contact with the surface so as to inflate said at least one inflatable chamber, said composition being then cured in-situ into a cured material, wherein said at least one inflatable chamber comprises:
a transitional chamber; and at least one corrective chamber located within the transitional chamber;wherein said at least one channel comprises one or several transitional chamber channels and one or several corrective channels,wherein said transitional chamber is in fluid communication with one or several of said transitional chamber channels; andwherein the corrective chamber or each of said corrective chambers is/are in fluid communication with one or several of said corrective chamber channels.