Apparatus and methods for drug delivery using multiple reservoirs
First Claim
1. An apparatus, comprising:
- a housing;
a cartridge assembly, at least a portion of the cartridge assembly configured to be movably disposed in the housing, the cartridge assembly including a first movable member and a second movable member, the second movable member including a seal member configured to form a fluidic seal with an inner surface of the first movable member, the first movable member defining an inner volume bounded by the seal member and the inner surface of the first movable member, at least a portion of the second movable member being movably disposed in the inner volume between a first position and a second position relative to the first movable member;
a first reservoir disposed within the inner volume such that the first reservoir is disposed in a distal position relative to the second movable member, the first reservoir containing a drug when the second movable member is in its first position relative to the first movable member, the first reservoir not being in fluid communication with the inner volume when the second movable member is in its first position, the first reservoir being placed in fluid communication with the inner volume when the second movable member is in its second position relative to the first movable member, the first movable member including a valve member configured to be transitioned from a closed configuration when the second movable member is in its first position relative to the first movable member to an open configuration (1) when the second movable member is moved toward its second position relative to the first movable member, and (2) in response to an increase in pressure within the first reservoir by distal movement of the second movable member from its first position towards its second position, the valve member further configured to be transitioned from the open configuration to the closed configuration after the second movable member is moved towards its second position relative to the first movable member; and
a second reservoir at least partially defined by the housing, a portion of the first movable member being movably disposed in the second reservoir, the second reservoir being fluidically isolated from the inner volume when the second movable member is in its first position relative to the first movable member and the valve member is in its closed configuration, the second reservoir being placed in fluid communication with the inner volume when the second movable member is moved toward its second position relative to the first movable member to receive a volume of the drug from the first reservoir and the valve member is in its open configuration, the first movable member and the second movable member collectively configured to be moved distally from a first position relative to the housing to a second position relative to the housing to expel the volume of the drug from the second reservoir.
5 Assignments
0 Petitions
Accused Products
Abstract
A cartridge, including a first member that defines an inner volume and a second member disposed therein, is disposed in a housing. A first reservoir is disposed in the inner volume in a position distal to the second member. The first member is partially disposed in a second reservoir, defined by the housing. The second member is configured to be moved from a first position, in which the first reservoir contains a drug and the second reservoir is fluidically isolated from the inner volume, toward a second position, in which the first reservoir and the second reservoir are in fluid communication with the inner volume, such that the second reservoir receives a volume of the drug from the first reservoir. The first member and the second member are collectively moved relative to the second reservoir to expel the volume of the drug from the second reservoir.
368 Citations
30 Claims
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1. An apparatus, comprising:
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a housing; a cartridge assembly, at least a portion of the cartridge assembly configured to be movably disposed in the housing, the cartridge assembly including a first movable member and a second movable member, the second movable member including a seal member configured to form a fluidic seal with an inner surface of the first movable member, the first movable member defining an inner volume bounded by the seal member and the inner surface of the first movable member, at least a portion of the second movable member being movably disposed in the inner volume between a first position and a second position relative to the first movable member; a first reservoir disposed within the inner volume such that the first reservoir is disposed in a distal position relative to the second movable member, the first reservoir containing a drug when the second movable member is in its first position relative to the first movable member, the first reservoir not being in fluid communication with the inner volume when the second movable member is in its first position, the first reservoir being placed in fluid communication with the inner volume when the second movable member is in its second position relative to the first movable member, the first movable member including a valve member configured to be transitioned from a closed configuration when the second movable member is in its first position relative to the first movable member to an open configuration (1) when the second movable member is moved toward its second position relative to the first movable member, and (2) in response to an increase in pressure within the first reservoir by distal movement of the second movable member from its first position towards its second position, the valve member further configured to be transitioned from the open configuration to the closed configuration after the second movable member is moved towards its second position relative to the first movable member; and a second reservoir at least partially defined by the housing, a portion of the first movable member being movably disposed in the second reservoir, the second reservoir being fluidically isolated from the inner volume when the second movable member is in its first position relative to the first movable member and the valve member is in its closed configuration, the second reservoir being placed in fluid communication with the inner volume when the second movable member is moved toward its second position relative to the first movable member to receive a volume of the drug from the first reservoir and the valve member is in its open configuration, the first movable member and the second movable member collectively configured to be moved distally from a first position relative to the housing to a second position relative to the housing to expel the volume of the drug from the second reservoir. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. An apparatus, comprising:
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a housing having a distal end portion, the distal end portion defining a substantially rigid reservoir physically and fluidically coupled to a puncture member, the puncture member configured to puncture ocular tissue of a patient; and a cartridge assembly configured to be movably disposed in the housing, the cartridge assembly including a first movable member and a second movable member, at least a portion of the first movable member configured to be disposed in the substantially rigid reservoir, the first movable member having a shoulder and defining an inner volume, at least a portion of the second movable member being movably disposed in the inner volume between a first position and a second position, the cartridge assembly including a deformable reservoir disposed within the inner volume between the shoulder and the second movable member, the shoulder having an inner surface including a protrusion configured to pierce the deformable reservoir when the second movable member is moved relative to the first movable member from its first position to its second position to transition the deformable reservoir from a first configuration, in which a drug is contained within the deformable reservoir, to a second configuration, in which a volume of the drug is disposed substantially outside the deformable reservoir, the substantially rigid reservoir being fluidically isolated from the inner volume when the second movable member is in its first position, the substantially rigid reservoir configured to receive the volume of the drug from the inner volume when the second movable member is moved relative to the first movable member toward its second position, the first movable member of the cartridge assembly being movable relative to the housing from a first position to a second position to deliver the volume of the drug, via the puncture member, from the second reservoir to the ocular tissue, the shoulder further having an outer surface configured to contact a safety tab when the safety tab is movably coupled to the housing, the contact with the safety tab further configured to selectively limit movement of the first movable member relative to the housing. - View Dependent Claims (17, 18, 19, 20, 21, 22)
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23. An apparatus, comprising:
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a housing defining a first inner volume configured to receive a safety tab, a distal end portion of the housing being physically and fluidically coupled to a puncture member configured to puncture ocular tissue; a first movable member defining a second inner volume and movably disposed in the first inner volume of the housing, the safety tab configured to extend from a first radial side of the housing to a second radial side of the housing, traversing a portion of the first inner volume of the housing, when releasably coupled to the housing to engage the first movable member to selectively limit movement of the first movable member relative to the housing, the first radial side being located opposite the second radial side; a second movable member at least partially disposed in the second inner volume of the first movable member and being movable relative to the first movable member between a first position and a second position; a first reservoir disposed within the second inner volume of the first movable member, the first reservoir configured to be transitioned between a first configuration, in which the first reservoir contains a drug, and a second configuration, in which a volume of the drug is disposed within the second inner volume of the first movable member and substantially outside of the first reservoir, when the second movable member is moved from its first position to its second position, respectively; and a second reservoir at least partially defined by the housing, a portion of the first movable member being movably disposed in the second reservoir, the second reservoir being fluidically isolated from the second inner volume of the first movable member when the second movable member is in its first position, the second reservoir being placed in fluid communication with the second inner volume of the first movable member to receive the volume of the drug when the second movable member is moved toward its second position, the first movable member configured to be disengaged from the safety tab and moved within the second reservoir from a first position to a second position to deliver the volume of the drug, via the puncture member, from the second reservoir to the ocular tissue. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30)
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Specification