	US 12,484,883 B2
	Functionalized superabsorbent material for use in lesion phantom
Cristel Baiu, Madison, WI (US)
Assigned to Sun Nuclear Corp., Melbourne, FL (US)
Filed by Gammex, Inc., Middleton, WI (US)
Filed on Jun. 15, 2021, as Appl. No. 17/348,258.
Claims priority of provisional application 63/039,187, filed on Jun. 15, 2020.
Prior Publication US 2021/0386407 A1, Dec. 16, 2021
Int. Cl. A61B 8/00 (2006.01); A61K 49/22 (2006.01)

CPC A61B 8/587 (2013.01) [A61B 8/481 (2013.01); A61K 49/22 (2013.01)]

21 Claims

1. A medical imaging phantom, comprising:

a plurality of contrast targets, each contrast target of the plurality of contrast targets comprising an expanded superabsorbent polymer (SAP) sphere comprised of SAP material crosslinked with water or alcohol, the expanded SAP sphere having a predetermined size between 0.1 mm and 50 mm diameter; and

a background material surrounding the plurality of contrast targets, wherein the background material is a tissue-mimicking gel.