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US 2016/0095984 A1Published application
Devices for injection and dosing
AssigneeAllergan, Inc.
InventorsEthan Franklin, Dimitrios Stroumpoulis, Zachary Dominguez, Justin Schwab, Bastien Mandaroux, Edwin Kayda
Life of this patent
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Abstract
Injection devices are provided which include a handpiece capable of housing a cartridge containing an injectable composition, and a head coupled to the handpiece and housing a plurality of retractable needles and a dosing mechanism. Methods of treating skin surfaces are also provided.
Claims31
A dermal filler injection device comprising:
- a housing including an interior space for containing a cartridge;
- a trigger coupled to the housing;
- a head in communication with the interior space and including plurality of dosing chambers, and a plurality of retractable needles coupled thereto;
- wherein the device is structured such that operation of the trigger initially causes the needle to be moved from a retracted position to an extended position and subsequently causes a dose of fluid contained in the dosing chamber to be ejected from the needle when the needle is in the extended position;
- the device further structured to cause retraction of the needles after the dosing;
- and
- a mechanism capable of filling each dosing chamber between subsequent injections.
4 more elements
A device for treating skin, the device comprising:
- a handpiece having a distal end;
- a cartridge for containing an injectable fluid;
- a mechanism for moving the injectable fluid toward the distal end;
- and
- an injector assembly at said distal end, the assembly comprising multiple needles and multiple conical or tapered projections, each needle having a tip protruding from an individual conical or tapered projection, and each conical or tapered projection being spaced apart from each other conical or tapered projections so as to effect a preloading of skin when the distal end is applied to skin, to facilitate penetration of the needle tips into the skin.
2 more elements
A method for treating skin comprising:
- placing a distal end of a handheld device into direct contact with skin to be treated, the device including a plurality of needles;
- causing the device to deliver a dose of a composition into a portion of the skin through the plurality of needles, substantially simultaneously;
- moving the distal end of the device onto another portion of the skin while maintaining the direct contact with the skin;
- after the step of moving, causing the device to deliver another dose of the composition into the another portion of the skin.
1 more element
A dermal filler injection device comprising:
- a handpiece comprising
- a handpiece housing including an interior space for containing a cartridge having a plunger slidable within the cartridge, and
- a trigger coupled to the housing;
- a head, in communication with the interior space, the head comprising a needle array housing assembly and a needle hub disposed within the needle array housing assembly and at least one needle secured to the needle hub;
- wherein the device is structured such that operation of the trigger initially causes the needle to be moved from a retracted position to an extended position;
- and
- the head being manually separable from, and replaceable with respect to, the handpiece.
4 more elements
Dependencies are inferred from the claim text.