Drug pellet delivery system and method
First Claim
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1. A delivery device comprising:
- a housing comprising a cavity;
a cartridge positioned within the cavity and comprising a body comprising an outer surface and having a concave inner surface extending into the body in a first direction and defining a channel having a longitudinal axis, the body comprising a first pair of rails protruding from the outer surface in a second direction opposite the first direction and a second pair of rails protruding from the outer surface in the second direction, wherein the first pair of rails is configured to block and redirect a plunger to maintain alignment of the plunger through the channel; and
the plunger slidably disposed in the housing and the cartridge, the plunger being configured to move a drug depot through the channel and out of the housing,wherein the first pair of rails is spaced apart by the channel,wherein the first pair of rails is outward of the channel, andwherein each said rail of the first pair of rails comprises;
a first planar surface parallel to the longitudinal axis of the channel; and
a second planar surface tapered towards a distal end of the body.
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Abstract
A drug pellet delivery system includes a housing having a cavity. A cartridge is positioned within the cavity and includes a body having a channel. The body includes a first pair of rails and a second pair of rails. A plunger is slidably disposed in the housing and the cartridge. The plunger is configured to move a drug depot through the channel and out of the housing. Kits and methods of use are disclosed.
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Citations
20 Claims
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1. A delivery device comprising:
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a housing comprising a cavity; a cartridge positioned within the cavity and comprising a body comprising an outer surface and having a concave inner surface extending into the body in a first direction and defining a channel having a longitudinal axis, the body comprising a first pair of rails protruding from the outer surface in a second direction opposite the first direction and a second pair of rails protruding from the outer surface in the second direction, wherein the first pair of rails is configured to block and redirect a plunger to maintain alignment of the plunger through the channel; and the plunger slidably disposed in the housing and the cartridge, the plunger being configured to move a drug depot through the channel and out of the housing, wherein the first pair of rails is spaced apart by the channel, wherein the first pair of rails is outward of the channel, and wherein each said rail of the first pair of rails comprises; a first planar surface parallel to the longitudinal axis of the channel; and a second planar surface tapered towards a distal end of the body. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A delivery device comprising:
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a housing comprising a cavity; a cartridge positioned within the cavity and comprising a body having an inner surface extending into the body, the inner surface defining a channel, the body comprising tabs that are positioned within openings in the housing to couple the cartridge to the housing, the body comprising a first pair of rails and a second pair of rails outward of the channel, the first pair of rails including first and second rails that are spaced apart from one another by the channel, the second pair of rails including third and fourth rails that are spaced apart from one another by the channel; and a plunger slidably disposed in the housing and the cartridge, the plunger being configured to move a drug depot through the channel and out of the housing, wherein the first pair of rails is configured to block and redirect the plunger to maintain alignment of the plunger through the channel, and wherein the second pair of rails is configured to block and redirect the drug depot to maintain alignment of the drug depot through the channel. - View Dependent Claims (17, 18, 19)
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20. A delivery device comprising:
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a housing comprising a cavity; a cartridge positioned within the cavity and comprising a body having a channel at least partially defined by a recess in a surface, the body comprising a first pair of rails and a second pair of rails protruding from the surface, the first pair of rails including first and second rails that are spaced apart from one another by the channel, the second pair of rails including third and fourth rails that are spaced apart from one another by the channel; a cover removably attached to the cartridge, the cover comprising a first projection positioned between the first pair of rails, a second projection positioned between the second pair of rails and a wall that is positioned over at least a portion of the channel and the first and second pairs of rails, the cover comprising tabs that are positioned within grooves of the body to attach the cover to the cartridge; and a plunger slidably disposed in the housing and the cartridge, the plunger being configured to move a drug depot through the channel and out of the housing, wherein the housing comprises a window and the cover is clear or translucent such that the drug depot within the channel would be visible through the window and the cover, wherein the first pair of rails is configured to block and redirect the plunger to maintain alignment of the plunger through the channel, and wherein the second pair of rails is configured to block and redirect the drug depot to maintain alignment of the drug depot through the channel.
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Specification