Patent ID: 7923431

Claim:
A medical device which allows for the facile preparation of a paste from a powdered haemostatic agent comprising: i) a first sterile, rigid or semi-rigid containment unit defining a first internal volume, said first sterile containment unit being comprised of a material substantially impermeable to fluid, wherein said first containment unit comprises at least one wide-mouth opening to an external environment for adding a liquid from said external environment, and at least one closure-unit for closing the at least one opening, wherein the at least one opening is re-closeable with the at least one closure-unit: and ii) between 0.4 to 10 g of collagen or gelatin in powdered form having a second volume contained in said first containment unit, said second volume not being physically separated from said first internal volume, said second volume of said collagen or gelatin in powdered form being less than 90% of the first internal volume; wherein said collagen or gelatin in powdered form and said liquid can be mixed within said containment unit without exposure to said external environment and without transfer to a second containment unit, and wherein 95% of the powder is less than 1000 microns in size; and iii) an outer packaging defining a sterile barrier enclosing said first sterile containment unit and forming a complete barrier to moisture, the containment-unit-facing side of said outer packaging being sterile, said outer packaging comprising an unbroken seal in the form of a foil or film pouch being able to endure radiation.