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US 10,517,985 B2Granted
Compositions and methods for hemostasis
AssigneeAbyrx, Inc.
InventorsDavid Knaack, John Pacifico, Marci Wirtz, Richard L. Kronenthal, Frank Do, Aniq Darr
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Abstract
The present invention relates to water soluble and completely absorbable and/or physiologically degradable hemostatic compositions having a wax or wax-like base effective for tamponade hemostasis of bone or cartilage.
Claims8
A hand-moldable hemostatic composition having the consistency of a putty, wherein the composition is effective for tamponade hemostasis of a bone or cartilage comprising:
- a. a water-soluble ethoxylated fatty acid;
- b. a freely water soluble (FWS) non-particulate solid base material comprising:
- i) block copolymers of ethylene and propylene oxide and ii) polypropylene glycol, wherein the composition further comprises a particulate material embedded within the FWS solid base material;
- and
- c. a water absorbing dissolution retardant in an amount effective to increase the dissolution time of the FWS nonparticulate solid base material, wherein the water absorbing dissolution retardant is a carboxymethyl cellulose, or a sodium, potassium or lithium salt thereof, and wherein the carboxymethyl cellulose is present in an amount that is 5-15% by weight of the putty, thereby increasing the dissolution time of the FWS non-particulate solid base material, and
- wherein the composition has sufficient strength to adhere directly to the moist surfaces of bleeding bone or cartilage, thereby creating a static interface that allows blood clotting to occur.
3 more elements
Dependencies are inferred from the claim text.