Prevention of premature gelling of delivery devices for ph...

Details Prevention of premature gelling of delivery devices for ph... Prevention of premature gelling of delivery devices for ph...

A - Human Necessities

61

M

A61M 37/00 (2006.01) A61L 31/04 (2006.01) A61L 31/10 (2006.01)

Patent

CA 2717722

The present disclosure provides treatment of an apparatus, in embodiments a delivery device, which prevents premature gelling of any materials or precursor(s) of a pH dependent forming material, in embodiments a hydrogel, dispensed by the delivery device. The pH microenvironment near the surface of a lumen of the device, in embodiments the tip of a spray applicator through which the material to be dispensed is expelled from the device, may be controlled to prevent premature gelling.

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