Method for forming hydrogels and materials therefor
AssigneeEndologix, Inc.
InventorsDonovan Prewett, Paolo Mendoza, Charles Bankert, Mehdi Durali
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Abstract
The present invention provides a dry powder that is suitable for use in forming a hydrogel and characterized by a stable composition at ambient conditions. The dry powder includes a prepolymer including a straight chain polyethylene glycol, and a thermally activated free radical initiator selected from the group consisting of sodium persulfate, potassium persulfate, and ammonium persulfate. The present invention also provides a method of forming the dry powder, and a method of preparing a hydrogel where a reaction mixture is formed including the dry powder and a buffered aqueous solution.
Claims16
A dry powder comprising:
- a prepolymer comprising a straight chain polyethylene glycol;
- and
- a thermally activated free radical initiator selected from the group consisting of sodium persulfate, potassium persulfate, and ammonium persulfate.
A method of preparing a dry powder comprising:
- preparing a solution comprising:
- a prepolymer comprising a straight chain polyethylene glycol;
- and
- a thermally activated free radical initiator selected from the group consisting of sodium persulfate, potassium persulfate, and ammonium persulfate;
- and
- dehydrating the solution, thereby preparing the dry powder.
Dependencies are inferred from the claim text.