APPARATUS AND METHODS FOR INJECTING HIGH VISCOSITY DERMAL FILLERS
First Claim
1. A method, comprisingreceiving a syringe pre-filled by a dermal filler supplier such that a first portion of the syringe contains a dermal filler, the syringe having a piston movably disposed therein such that the syringe is divided into the first portion and a second portion, the first portion of the syringe being coupled to a needle;
- coupling the second portion of the syringe to a non-manual energy source via a hand piece such that the first portion of the syringe is unconstrained by the hand piece, the coupling including disposing a push rod of the hand piece within the second portion of the syringe such that the push rod is adjacent the piston of the syringe;
inserting a distal end portion of a needle into a skin of a body;
actuating the non-manual energy source such that a gas having a first pressure is supplied to the hand piece, the hand piece configured to amplify the first pressure such that the dermal filler is conveyed from the first portion of the syringe at a second pressure higher than the first pressure, the dermal filler conveyed into the skin through the distal end portion of the needle; and
moving the distal end portion of the needle within the skin during the actuating.
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Accused Products
Abstract
A method includes inserting a distal end portion of a needle of a medical injector into a skin of a body. An energy source operatively coupled to the medical injector is actuated such that a dermal filler is conveyed from the medical injector into the skin through the distal end portion of the needle. The distal end portion of the needle is moved within the skin during the actuating.
73 Citations
34 Claims
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1. A method, comprising
receiving a syringe pre-filled by a dermal filler supplier such that a first portion of the syringe contains a dermal filler, the syringe having a piston movably disposed therein such that the syringe is divided into the first portion and a second portion, the first portion of the syringe being coupled to a needle; -
coupling the second portion of the syringe to a non-manual energy source via a hand piece such that the first portion of the syringe is unconstrained by the hand piece, the coupling including disposing a push rod of the hand piece within the second portion of the syringe such that the push rod is adjacent the piston of the syringe; inserting a distal end portion of a needle into a skin of a body; actuating the non-manual energy source such that a gas having a first pressure is supplied to the hand piece, the hand piece configured to amplify the first pressure such that the dermal filler is conveyed from the first portion of the syringe at a second pressure higher than the first pressure, the dermal filler conveyed into the skin through the distal end portion of the needle; and moving the distal end portion of the needle within the skin during the actuating. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 17, 18, 19, 30, 31, 32)
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11. A method, comprising:
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coupling a proximal end portion of a syringe to a non-manually-powered machine using a hand piece such that a distal end portion of the syringe and a central portion of the syringe are unconstrained, at least the distal end portion configured to contain a dermal filler, the distal end portion coupled to a needle; inserting a distal end portion of a needle into a skin of a body; and actuating the non-manually-powered machine operatively coupled to the hand piece such that a gas having a first pressure is supplied to the hand piece, the hand piece configured to amplify the first pressure such that the dermal filler is conveyed from the distal portion of the syringe at a second pressure higher than the first pressure into the skin through the distal end portion of the needle, the second pressure being approximately 250 pounds per square inch. - View Dependent Claims (12, 13, 14, 15, 16, 20, 21, 22, 23, 24, 25, 33)
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26. A method, comprising:
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coupling a proximal end portion of a syringe to a hand piece such that a push rod of the hand piece is disposed adjacent a piston within the syringe and such that the syringe and the hand piece collectively define a range of minimum insertion angles relative to a surface of a skin of a body between approximately 5 degrees and approximately 35 degrees; inserting a distal end portion of a needle coupled to the syringe into the skin of the body at an angle relative to the surface of the skin; and actuating a pneumatic energy source operatively coupled to the syringe via the hand piece such that the hand piece receives a gas having a gas pressure from the pneumatic energy source, and amplifying the gas pressure via the hand piece such that a pressure of the dermal filler within the syringe is higher than the gas pressure and is approximately 250 pounds per square inch, such that a dermal filler is conveyed from the syringe into the skin through the distal end portion of the needle. - View Dependent Claims (27, 28, 29)
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34. An apparatus, comprising:
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a medicament container having a piston movably disposed therein such that the medicament container is divided into a first portion and a second portion, the first portion configured to contain a medicament; a needle coupled to the medicament container such that the needle is in fluid communication with the first portion of the medicament container; a non-manual energy source operatively coupled to the piston, the energy source configured to produce a kinetic energy to move the piston within the medicament container such that the medicament having a viscosity of at least 1000 centipoise can be conveyed from the first portion of the medicament container through a distal end of the needle at a flow rate of at least 0.02 cubic centimeters per minute; and a regulator configured to regulate the flow rate of the medicament through the distal end of the needle.
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Specification