INJECTION DEVICE FOR SOFT-TISSUE AUGMENTATION FILLERS, BIOACTIVE AGENTS AND OTHER BIOCOMPATIBLE MATERIALS IN LIQUID OR GEL FORM
First Claim
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.
1 Assignment
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Accused Products
Abstract
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.
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Citations
11 Claims
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1. A hand-held injection device comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification