DRUG DELIVERY DEVICE
First Claim
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1. A device for administering to an animal a fluid drug comprising:
- a housing having a housing open upper end and a housing bottom base defining an inner chamber;
the housing bottom base having an aperture;
the inner chamber adapted to slideably receive therein a reservoir chamber in a first predetermined reservoir chamber position, the reservoir chamber being confined to travel along a reservoir chamber travel path relative the housing;
the reservoir chamber defined by a reservoir chamber bottom base and surrounding wall extending from the reservoir bottom base so as provide a reservoir open top;
the reservoir bottom base including a hollow needle having a lower end and an upper end wherein the needle is affixed to and traverses the reservoir bottom base such that the upper end is disposed within the reservoir chamber and the lower end can extend through the aperture in a second predetermined reservoir chamber position along the reservoir chamber travel path relative the housing;
a reservoir body containing therein the fluid drug being located in the reservoir chamber near the reservoir open top and separated from the upper end of the hollow needle in the first predetermined reservoir chamber position; and
an actuator having a plunger operably coupled thereto and terminating in a stopper;
the plunger adapted to be in slidable communication within the reservoir chamber via the reservoir open top such that the stopper can communicate with the reservoir body in the second predetermined reservoir chamber position wherein a force being applied to the actuator causes the lower end of the hollow needle to extend through the aperture and substantially simultaneously causing the upper end of the hollow needle to pierce the reservoir body such that continuous force being applied to the actuator causes the fluid drug to be expelled through the hollow needle.
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Accused Products
Abstract
A novel device and method for intradermal delivery of an active agent is provided. The device comprises a housing which contains a reservoir chamber. A flexible reservoir containing the active agent is placed in the chamber. Upon pressure on an actuator the active agents is delivered via a hollow needle to the skin.
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Citations
11 Claims
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1. A device for administering to an animal a fluid drug comprising:
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a housing having a housing open upper end and a housing bottom base defining an inner chamber; the housing bottom base having an aperture; the inner chamber adapted to slideably receive therein a reservoir chamber in a first predetermined reservoir chamber position, the reservoir chamber being confined to travel along a reservoir chamber travel path relative the housing; the reservoir chamber defined by a reservoir chamber bottom base and surrounding wall extending from the reservoir bottom base so as provide a reservoir open top; the reservoir bottom base including a hollow needle having a lower end and an upper end wherein the needle is affixed to and traverses the reservoir bottom base such that the upper end is disposed within the reservoir chamber and the lower end can extend through the aperture in a second predetermined reservoir chamber position along the reservoir chamber travel path relative the housing; a reservoir body containing therein the fluid drug being located in the reservoir chamber near the reservoir open top and separated from the upper end of the hollow needle in the first predetermined reservoir chamber position; and an actuator having a plunger operably coupled thereto and terminating in a stopper; the plunger adapted to be in slidable communication within the reservoir chamber via the reservoir open top such that the stopper can communicate with the reservoir body in the second predetermined reservoir chamber position wherein a force being applied to the actuator causes the lower end of the hollow needle to extend through the aperture and substantially simultaneously causing the upper end of the hollow needle to pierce the reservoir body such that continuous force being applied to the actuator causes the fluid drug to be expelled through the hollow needle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A device for administering to an animal a fluid drug comprising:
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a housing having a housing open upper end and a housing bottom base defining an interior chamber; the housing bottom base having an aperture therein; the interior chamber adapted to slideably receive therein a reservoir chamber in an initial reservoir chamber position at a first predetermined distance from the interior surface of the base of the housing, the reservoir chamber being confined to travel along a reservoir chamber travel path relative the housing; the reservoir chamber defined by a reservoir chamber bottom base and surrounding reservoir chamber wall extending from the reservoir bottom base so as provide a reservoir open top; the reservoir bottom base including a single hollow needle having a lower end and an upper end wherein the needle is mounted in and transverses the reservoir bottom base such that the upper non-skin contacting end is disposed within the interior of the reservoir chamber and just below the reservoir and the lower skin-contacting end can extend beyond the aperture to a second position at a predetermined distance defined by the reservoir chamber travel path of the reservoir chamber bottom base to the housing base relative the housing; a flexible filled reservoir body containing therein the fluid drug being located in the reservoir chamber near the reservoir open top and separated from the upper end of the hollow needle in the first predetermined reservoir chamber position; and an actuator having a plunger operably coupled thereto and terminating in a stopper; the plunger adapted to be in slidable communication within the reservoir chamber via the reservoir open top such that, in use, the stopper can communicate with the reservoir body when in the second predetermined reservoir chamber position wherein a force being applied to the actuator causes the lower end of the hollow needle to extend through the aperture and substantially simultaneously causing the upper end of the hollow needle to pierce the reservoir body and puts the upper end of the needle into fluid communication with the contents of the reservoir such that continuous force being applied to the actuator causes the fluid drug to be expelled through the hollow needle.
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Specification