Device and method for delivering or withdrawing a substance through the skin
First Claim
1. An apparatus for delivering or withdrawing a fluid through at least one layer of the skin of a subject, the apparatus comprising:
- a device comprising a body having a top face, a bottom face spaced from the top face, and a side edge, the body defining at least one channel, wherein the bottom face includes a first surface area and a second surface area adjacent to and recessed at a first distance from the first surface area, the bottom face further including at least one raised protrusion disposed on the second surface area, the at least one raised protrusion having a height from the first surface, and the height being greater than the first distance;
at least one dermal-access member provided in the at least one raised protrusion and being in fluid communication with the channel to deliver or withdraw the fluid, the at least one dermal-access member extending at least 1 mm from the at least one protrusion; and
means for driving the device against the skin at a calculated speed of about 6 m/s to about 18 m/s.
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Accused Products
Abstract
An apparatus for delivering or withdrawing a fluid through at least one layer of the skin is provided. A device includes a body having a top face, a bottom face, a side edge and at least one channel. The bottom face includes a first surface area and a second surface area adjacent to and recessed at a first distance from the first surface area. The bottom face further includes at least one raised protrusion disposed on the second surface area. The protrusion has a height from the first surface greater than the first distance. At least one dermal-access member is provided in the protrusion and is in fluid communication with the channel to deliver or withdraw the fluid. The dermal-access member extends at least 1 mm from the protrusion. A mechanism drives the device against the skin at a calculated speed of about 6 m/s to about 18 m/s.
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Citations
9 Claims
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1. An apparatus for delivering or withdrawing a fluid through at least one layer of the skin of a subject, the apparatus comprising:
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a device comprising a body having a top face, a bottom face spaced from the top face, and a side edge, the body defining at least one channel, wherein the bottom face includes a first surface area and a second surface area adjacent to and recessed at a first distance from the first surface area, the bottom face further including at least one raised protrusion disposed on the second surface area, the at least one raised protrusion having a height from the first surface, and the height being greater than the first distance;
at least one dermal-access member provided in the at least one raised protrusion and being in fluid communication with the channel to deliver or withdraw the fluid, the at least one dermal-access member extending at least 1 mm from the at least one protrusion; and
means for driving the device against the skin at a calculated speed of about 6 m/s to about 18 m/s. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
wherein the dermal-access member of a respective protrusion is of a different length from the dermal-access member of another protrusion, the lengths of the dermal-access members being of sufficient lengths to deliver or withdraw the fluid from a subcutaneous layer of the skin and an intradermal layer of the skin.
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Specification