INJECTION DEVICE FOR SOFT-TISSUE AUGMENTATION FILLERS, BIOACTIVE AGENTS AND OTHER BIOCOMPATIBLE MATERIALS IN LIQUID OR GEL FORM

摘要

Described herein are injection devices capable of automatically injecting substances into the soft tissue of a patient. The devices can inject low to high viscosity materials at predetermined, user selected injection rates, allowing the operator more control than a traditional syringe. The devices can allow mixing of more than one substance and/or reconstitution of a solid substance for injection. The injection devices described herein can allow the operator to easily inject one or more low to high viscosity liquid or gel soft-tissue augmentation fillers, one or more drugs, one or more other biocompatible materials, or combinations thereof.

主权项

1. A hand-held injection device comprising:
a cartridge suitable for containing first material and couplable to a needle; a shell structured to contain the cartridge; a motorized drive mechanism; a power source for activating the drive mechanism; a user-programmable controller coupled to the drive mechanism, where a user-defined injection rate can be set; a vial, suitable for containing a second material, fluidly coupled to the cartridge; a pump and a one-way valve for directing the second material into the cartridge to be mixed with the first material; and a plunger actuated by the drive mechanism for forcing the first material mixed with the second material from the cartridge and out of the needle at the user defined injection rate.