Abstract: The present invention provides a kit for immobilization of a patient body part for radiotherapy applications. The kit includes two moldable thermoplastic sheets, a lower sheet for covering the anatomical contours of a first area of the body part and an upper sheet for covering the anatomical contours of a second area of the body part which is not covered by the lower sheet. The upper and lower sheets form a double shell mask enclosing the body part. The sheets may be connected and retained by a fixation device. The sheets have different physical and visual properties.

Abstract: A system for immobilization of a patient body part for radiotherapy applications which includes a device having at least one flanged support member which is suitable to be mounted to a fixation surface and is adapted to receive and retain at least two sheets is described. The first sheet covers the anatomical contours of a first area of the body part, and the second sheet covers the anatomical contours of a second area of the body part which is not covered by the first sheet. The system is capable of supporting the immobilized body part free from the fixation surface by the two sheets and the device.

Abstract: The present invention relates to a thermoplastic composition suitable for manufacturing a thermoplastic sheet for producing a medical cast, such as a radiation mask. The composition has a polymeric component comprising a mixture of a styrene acrylonitrile copolymer and polycaprolactone, optionally together with a cross-linker and/or a filler, wherein the polymeric component comprises, 20 to 40 weight % of a styrene acrylonitrile copolymer and 80 to 60 weight % of a polycaprolactone, expressed in weight % of the polymeric component, wherein the thermoplastic composition has a glass transition temperature of 35° C.-80° C. The invention further relates to a thermoplastic sheet and to a medical cast, in particular a radiation mask, obtainable from said composition. In a final aspect, the invention relates to a method for producing said sheet and said radiation mask.

Abstract: The present invention provides a kit for immobilization of a patient body part for radiotherapy applications. The kit includes two moldable thermoplastic sheets, a lower sheet for covering the anatomical contours of a first area of the body part and an upper sheet for covering the anatomical contours of a second area of the body part which is not covered by the lower sheet. The upper and lower sheets form a double shell mask enclosing the body part. The sheets may be connected and retained by a fixation device. The sheets have different physical and visual properties.

Abstract: The present invention provides a system for immobilization of a patient body part for radiotherapy applications comprising: a device comprising at least one flanged support member which is suitable to be mounted to a fixation surface and is adapted to receive and retain at least two sheets; a first sheet for covering the anatomical contours of a first area of said body part, and a second sheet for covering the anatomical contours of a second area of said body part which is not covered by the first sheet; whereby the system is adapted for supporting the immobilized body part free from the fixation surface by the two sheets and the device.

Abstract: The present invention relates to a thermoplastic composition suitable for manufacturing a thermoplastic sheet for producing a medical cast, such as a radiation mask. The composition has a polymeric component comprising a mixture of a styrene acrylonitrile copolymer and polycaprolactone, optionally together with a cross-linker and/or a filler, wherein the polymeric component comprises, 20 to 40 weight % of a styrene acrylonitrile copolymer and 80 to 60 weight % of a polycaprolactone, expressed in weight % of the polymeric component, wherein the thermoplastic composition has a glass transition temperature of 35° C.-80° C. The invention further relates to a thermoplastic sheet and to a medical cast, in particular a radiation mask, obtainable from said composition. In a final aspect, the invention relates to a method for producing said sheet and said radiation mask.

Abstract: A flexible thermoplastic sheet material (100) is disclosed, suitable for molding to and immobilising a part of a subject during medical treatment. The flexible thermoplastic sheet material has a core layer (10) with an upper surface (1) and lower surface (2), that is a thermoplastic composition including polycaprolactone and polyurethane. A first outer layer (5) is disposed over the upper surface of the core layer, having a material formed from a yarn which includes polyamide and elastane. The second outer layer (15) is disposed over the lower surface of the core layer and includes open cell foam with layers which are bonded so as to form a single sheet. A cushion and molding frame can be made from the sheet material (100).