Protective shield for radiology scanners

A shield for a medical scanner having a cylindrical bore extending along an axis, the shield comprising:

• a resilient sheet sized to fit loosely within the bore of a medical scanner in a first relaxed state and then to flex outward against an inner circumference of the bore in a second compressed state upon circumferentially directed compressive forces on the resilient sheet, the resilient sheet in the second compressed state extending along an axial length of the bore and over at least 50% of the inner circumference of the bore, the resilient sheet in the first relaxed state presenting circumferentially opposed and circumferentially spaced apart axially extending edges extending within the bore over the axial length of the bore bounded by circumferentially extending edges;
• and
• a compressor adapted to slide axially with respect to the resilient sheet and along at least one axially extending edge to urge the at least one axially extending edge in a circumferential direction following the extent of the resilient sheet and causing the resilient sheet to move outward against the inner circumference of the bore;
• wherein the shield has a first and second portion defining first and second circumferentially spaced edges,
• wherein the compressor is a connector adjustably joining the first and second circumferentially spaced edges to change a separation between the first and second circumferentially spaced edges to provide a circumferential compression of the resilient sheet in the second compressed state,
• wherein the connector provides a single actuator member extending along the bore and movable axially along the bore between a first and second position so that the axial movement causes the first and second circumferentially spaced edges to move between a first separation with the resilient sheet fitting within the inner circumference of the bore without pressing against the inner circumference of the bore, to a second separation with the resilient sheet pressed against the inner circumference of the bore in the second compressed state.