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OwnerAndrew E. Pelling, Ryan Hickey +2inventors
InventorsAndrew E. Pelling, Ryan Hickey, Joseph Christopher Samuel ODDING, Allison TRAN
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A method of filtering or removing agglomerations of individual particles from a viscous material such as a dermal filler formulation is provided. The method involves filling the viscous material in an extrusion system comprising a sieve or filter placed inside, outside, adjacent to or outside the system. The material is forced to pass through the filter/sieve which causes filtration/removal of the agglomerates present in the viscous material owing to its larger size. Alternatively, the pressure-based filtration cause separation of the individual particles causing breakdown of the agglomerates, thereby allowing the viscous material to pass through the extrusion system without any occlusion problems. The filtered viscous material is suitable for administration to the patients. The invention also describes devices to carry out the proposed pressure-filtration technique.
A method of removing agglomerations of individual particles from a viscous material for administration to a patient comprising:
A method of removing agglomerations of individual particles from a viscous dermal filler material for administration to a patient comprising:
The method of claim 79, wherein the pore size of the at least one filter/sieve is in the range of 1-1000 μm.
A method of removing agglomerations of individual particles from a viscous material for administration to a patient comprising:
A device for removing agglomerations of individual particles from a viscous material comprising:
A device for removing agglomerations of individual particles from a viscous material comprising:
Dependencies are inferred from the claim text.