Injection device for soft-tissue augmentation fillers, bioactive agents and other biocompatible materials in liquid or gel form
First Claim
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1. A hand-held injection device comprising:
- a cartridge containing a dermal filler 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 vial, containing a dilutant, fluidly coupled to the cartridge;
a one-way valve;
a pump for directing the dilutant through the one-way valve and into the cartridge to be mixed with the dermal filler; and
a plunger actuated by the drive mechanism for forcing the dermal filler mixed with the dilutant from the cartridge and out of the needle.
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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
20 Claims
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1. A hand-held injection device comprising:
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a cartridge containing a dermal filler 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 vial, containing a dilutant, fluidly coupled to the cartridge; a one-way valve; a pump for directing the dilutant through the one-way valve and into the cartridge to be mixed with the dermal filler; and a plunger actuated by the drive mechanism for forcing the dermal filler mixed with the dilutant from the cartridge and out of the needle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A hand-held injection device comprising:
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a cartridge containing a dermal filler, the cartridge being substantially cylindrical and having a distal end configured to couple to a needle and a proximal end opposite to the distal end; an outer shell configured to contain the cartridge and be held by an operator; a vial containing a dilutant having a lower viscosity than the dermal filler, the vial being fluidly coupled to the cartridge at a lateral side thereof between the proximal end and the distal end; a one-way valve disposed between the vial and the cartridge and configured to direct the dilutant into the cartridge to be mixed with the dermal filler; a plunger disposed in the cartridge and configured to move through the cartridge to force a mixture of the dermal filler and the dilutant from the cartridge and out of the needle; a motorized drive mechanism comprising a first motor and one or more gears, the motorized drive mechanism being coupled to the plunger through the distal end of the cartridge; and a power source configured to activate the motorized drive mechanism. - View Dependent Claims (15, 16)
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17. A hand-held injection device comprising:
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a cartridge containing a dermal filler and configured to couple to a needle; a shell configured to contain the cartridge; a vial containing a dilutant and configured to fluidly couple to the cartridge; a one-way valve configured to direct the dilutant into the cartridge to be mixed with the dermal filler; a pump configured to direct the dilutant through the one-way valve; a plunger configured to move through the cartridge to force a mixture of the dermal filler and the dilutant from the cartridge and out of the needle; a motorized drive mechanism comprising a first motor and configured to couple to the plunger; and a second motor configured to agitate the mixture in the cartridge. - View Dependent Claims (18, 19, 20)
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Specification