Devices, systems and methods for medicament delivery
First Claim
1. A method, comprising:
- moving an actuation lock of a medical injector from a first position to a second position, the medical injector including a housing, a base, an energy storage member, a needle, and a medicament container containing a dose of epinephrine;
placing a distal end surface of the base of the medical injector into contact with a thigh, the distal end surface of the base defining an opening; and
pressing the base against the thigh such that the base moves relative to the housing to cause the energy storage member within the housing to produce a force to move the needle from a first needle position to a second needle position, the needle being fluidically isolated from the medicament within the medicament container when the needle is in the first needle position, a distal tip of the needle extending through the opening of the base by a distance of between 5.13 millimeters and 9.98 millimeters when the needle is in the second needle position, a portion of the force exerted on a plunger within the medicament container to A) rupture a frangible seal to place the needle in fluid communication with the medicament after the needle is in the second needle position and B) expel the dose of epinephrine from the medicament container when the needle is in the second needle position, the medicament container being stationary within the housing when the base moves relative to the housing.
7 Assignments
0 Petitions
Accused Products
Abstract
An apparatus includes a housing, a medicament container, an actuator, and a biasing member. The actuator is configured to move the medicament container within the housing when the actuator is moved from a first configuration to a second configuration. The actuator includes a gas container and a puncturer. When the actuator is in the first configuration, a portion of the puncturer is disposed apart from the gas container. When the actuator is in the second configuration, the portion of the puncturer is disposed within the gas container. The gas container has a longitudinal axis offset from a longitudinal axis of the medicament container. The biasing member is configured to bias the actuator toward the second configuration.
453 Citations
27 Claims
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1. A method, comprising:
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moving an actuation lock of a medical injector from a first position to a second position, the medical injector including a housing, a base, an energy storage member, a needle, and a medicament container containing a dose of epinephrine; placing a distal end surface of the base of the medical injector into contact with a thigh, the distal end surface of the base defining an opening; and pressing the base against the thigh such that the base moves relative to the housing to cause the energy storage member within the housing to produce a force to move the needle from a first needle position to a second needle position, the needle being fluidically isolated from the medicament within the medicament container when the needle is in the first needle position, a distal tip of the needle extending through the opening of the base by a distance of between 5.13 millimeters and 9.98 millimeters when the needle is in the second needle position, a portion of the force exerted on a plunger within the medicament container to A) rupture a frangible seal to place the needle in fluid communication with the medicament after the needle is in the second needle position and B) expel the dose of epinephrine from the medicament container when the needle is in the second needle position, the medicament container being stationary within the housing when the base moves relative to the housing. - View Dependent Claims (2, 3, 4, 5, 6, 16, 17, 18, 19, 25)
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7. A method, comprising:
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removing an actuation lock from a medical injector, the actuation lock preventing movement of a base of the medical injector when the actuation lock is coupled to the medical injector, the base movably coupled to a distal end portion of a housing of the medical injector; placing an end surface of the base of the medical injector into contact with a target location of a body, the end surface of the base having a non-circular shape, a needle of the medical injector configured to move between a first needle position and a second needle position, the needle disposed within the housing when the needle is in the first needle position, the needle disposed through the base such that a distal tip of the needle extends a distance of between 5.13 millimeters and 9.98 millimeters when the needle is in the second needle position; and actuating the medical injector by moving the base relative to the housing, thereby causing an energy storage member within the housing to produce a force to (A) move the needle from the first needle position to the second needle position and (B) expel a dose of epinephrine from the medical injector when the needle is in the second needle position, the needle being stationary relative to the housing when the base is moving relative to the housing. - View Dependent Claims (8, 9, 10, 11, 12, 20, 21, 26, 27)
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13. A method, comprising:
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moving a safety lock of a medical injector from a first position to a second position, the safety lock coupled to an end portion of the housing and including a protrusion disposed between opposing projections of an actuation member of the medical injector to prevent movement of the opposing projections toward each other when the safety lock is in the first position, the safety lock spaced apart from the actuation member to allow movement of the opposing projections toward each other when the safety lock is in the second position; placing an end surface of a base into contact with a target location of a body, the medical injector including a needle configured to move between a first needle position and a second needle position, the needle disposed within the housing of the medical injector when the needle is in the first needle position; and pressing the end surface of the base against the target location to move the base relative to the housing, movement of the base causing the opposing projections to move toward each other thereby releasing the actuation member such that an energy storage member within the housing produces a force to move the actuation member within the housing, the needle moving, in response to movement of the actuation member, from the first needle position to the second needle position, a distal tip of the needle extending from the medical injector by a distance of between 5.13 millimeters and 9.98 millimeters when the needle is in the second needle position, a dose of medicament from the medical injector being expelled when the needle is in the second needle position. - View Dependent Claims (14, 15, 22, 23, 24)
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Specification