IP Library › Granted Patent US 9,731,043
Granted Patent B2
US 9,731,043 · App. 14/483,274 · Granted Aug 15, 2017

Embolizing sclerosing hydrogel

Inventors: Sophie Lerouge (Montreal, CA); Giles Soulez (Montreal, CA); Ahmed Fatimi (Montreal, CA); Jean-Michel Coutu (Montreal, CA); Jean Raymond (Montreal, CA)
Assignees: VAL-CHUM, LIMITED PARTNERSHIP; SOCOVAR S.E.C.
A61L24/08A61K31/167A61K31/722A61K45/06A61K49/0457A61L24/001A61L24/0031A61L2400/04A61L2400/06A61L2430/36
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Quick Facts
Patent No.
US 9,731,043
App. No.
14/483,274
Granted
Aug 15, 2017
Kind
B2
Abstract

A sclerosing embolizing hydrogel comprising from about 0.1% by weight to about 4.0% by weight of chitosan; from about 0.01M to about 1M of hydrochloric acid; from 0% by volume to about 40% by volume of iopamidol; from 0.5% by weight to about 25% by weight of β-glycerophosphate disodium salt; and from about 0.05% by weight to about 4% by weight of sodium tetradecyl sulphate. Also a kit for synthesizing the hydrogel and a method using the hydrogel to treat a vascular defect in a subject.

Claims (9)

1. A kit for synthesizing a sclerosing embolizing hydrogel, said kit comprising: a first container containing chitosan in an acid solution; and a second container containing β-glycerophosphate disodium salt and sodium tetradecyl sulphate.

2. The kit of claim 1 , wherein the first container also contains an imaging contrast agent.

3. The kit of claim 1 , further comprising a mixer.

4. The kit of claim 1 , wherein the second container contains an aqueous solution in which the β-glycerophosphate disodium salt and the sodium tetradecyl sulphate are dissolved.

5. The kit of claim 2 , wherein said imaging contrast agent is selected from the group consisting of: Hypaque Meglumine, Reno, Conray, Renograffin, Hypaque Sodium, Hexabrix, Oxilan, iohexol, iopamidol, iopromide, ioversol, iodixanol, iothalamate and ioxaglate.

6. The kit of claim 5 , wherein the imaging contrast agent is iopamidol.

7. The kit of claim 5 , wherein the imaging contrast agent is a radiopaque substance.

8. The kit of claim 1 , wherein the acid is selected from the group consisting of: acetic acid, ascorbic acid, salicylic acid, phosphoric acid, hydrochloric acid, propionic acid, formic acid, lactic acid and mixtures thereof.

9. The kit of claim 8 , wherein the acid is hydrochloric acid.

Continuity (3)
Division 13112289 · May 20, 2011
Provisional Application 61344089 · May 20, 2010
Related Publication 20140377187A1 · Dec 25, 2014