Fluid Delivery Device Needle Retraction Mechanisms, Cartridges and Expandable Hydraulic Fluid Seals
First Claim
Patent Images
1. A fluid delivery device comprising:
- a housing configured to be coupled to a skin surface in an engaged position;
a fluid reservoir coupled to the housing;
an actuator coupled to the housing and configured to deliver a force to the fluid reservoir, the actuator having a first position and a second position; and
a needle assembly having a needle, the needle having a delivery end configured to extend from the housing and into the skin surface in a delivery configuration, the needle assembly being configured to automatically withdraw the delivery end of the needle into the housing upon the actuator moving from the first position to the second position.
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Abstract
A fluid delivery device includes an automatic needle retraction mechanism configured to automatically retract a delivery end of a needle into a housing. In one embodiment, the needle assembly is configured to automatically withdraw the delivery end of the needle into the housing upon an actuator moving from the first position to the second position. In one embodiment, the needle assembly is configured to automatically withdraw the delivery end of the needle into the housing upon decoupling a bottom surface of the housing from a skin surface.
24 Citations
34 Claims
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1. A fluid delivery device comprising:
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a housing configured to be coupled to a skin surface in an engaged position; a fluid reservoir coupled to the housing; an actuator coupled to the housing and configured to deliver a force to the fluid reservoir, the actuator having a first position and a second position; and a needle assembly having a needle, the needle having a delivery end configured to extend from the housing and into the skin surface in a delivery configuration, the needle assembly being configured to automatically withdraw the delivery end of the needle into the housing upon the actuator moving from the first position to the second position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A fluid delivery device comprising:
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a housing having a bottom surface, the bottom surface including an adhesive configured to releaseably couple the housing to a skin surface in an engaged position; a needle assembly having a needle, the needle having a delivery end configured to extend from the housing and into the skin surface in a delivery configuration, the needle assembly being configured to automatically withdraw the delivery end of the needle into the housing upon decoupling the bottom surface of the housing from the skin surface. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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34-70. -70. (canceled)
Specification