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US 2013/0172737 A1Published application
Absorbable sponge with contrasting agent
AssigneeBoston Scientific Scimed, Inc.
InventorsEduardo Chi Sing, Mark Ashby
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Abstract
An absorbable sponge containing a contrasting agent (e.g, radiopaque agent) that can be introduced to a biopsy tract or other puncture wound site is provided. The contrasting agent permits identification of the site by fluoroscopy or other imaging techniques.
Claims1
A liquid permeable, absorbable gelatin sponge that is prepared by a process that comprises:
- (a) preparing an aqueous gelatin solution;
- (b) adding an organic solvent in the aqueous gelatin solution to form a second solution;
- (c) incubating the second solution;
- (d) forming a foam from the second solution wherein a contrasting agent is added to the second solution at any step prior to forming the foam;
- and (e) drying the foam.
2 more elements
Dependencies are inferred from the claim text.