A radiation shield (5) includes an aper-ture (15) connected to an edge of the shieldby a slit (20), which is held closed by a re-leasable flap (25). Instrumentation can be in-serted through the aperture to contact a patientover which the shield (5) is draped. By re-leasing the flap (25) and thereby opening theaperture (15) toward the edge of the shield,the shield (5) can be removed from the patientwithout removing the instrumentation insertedthrough the aperture (15). A secondary shield(37) is releasably secured over the aperture(15), affording further protection. Because theshield is placed within the septic field dur-ing use, the shield includes a sterilizable outercovering (155).
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