Transdermal transport device with suction
First Claim
Patent Images
1. A transdermal transport device, comprising:
- a reservoir for holding a formulation of an active principle;
one or more needles, each needle having a bore through which the formulation is transported between the reservoir and a biological body, each needle having an end portion that is substantially aligned in a plane substantially parallel to a surface of the biological body when the device is placed on the surface and adapted to translate in a direction that is substantially parallel to the plane, the one or more needles being rotatable about an axis that is substantially perpendicular to the plane; and
a vacuum generator which creates a suction to draw a portion of the surface beyond the plane of the end portions to enable the end portions to penetrate the portion of the surface as the one or more needles are translated in a direction that is substantially parallel to the plane.
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Abstract
A transdermal transport device includes a reservoir for holding a formulation of an active principle, and one or more needles. Each needle has a bore through which the formulation is transported between the reservoir and a biological body, and has an end portion that is substantially aligned in a plane parallel to a surface of the biological body when the device is placed on the surface. The device also includes a vacuum generator which creates a suction to draw a portion of the surface beyond the plane of the end portions to enable the end portions to penetrate the portion of the surface as the needles are translated along an axis that is substantially parallel to the plane.
223 Citations
28 Claims
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1. A transdermal transport device, comprising:
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a reservoir for holding a formulation of an active principle; one or more needles, each needle having a bore through which the formulation is transported between the reservoir and a biological body, each needle having an end portion that is substantially aligned in a plane substantially parallel to a surface of the biological body when the device is placed on the surface and adapted to translate in a direction that is substantially parallel to the plane, the one or more needles being rotatable about an axis that is substantially perpendicular to the plane; and a vacuum generator which creates a suction to draw a portion of the surface beyond the plane of the end portions to enable the end portions to penetrate the portion of the surface as the one or more needles are translated in a direction that is substantially parallel to the plane. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A transdermal transport device, comprising:
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a needle having a bore through which a substance is transported, the needle having an end portion that is at least partially positioned between a plane substantially parallel to a surface of the biological body and the surface when the device is placed on the surface and adapted to translate substantially along a path that is substantially between the plane and the surface, the end portion being rotatable about an axis that is substantially perpendicular to the plane; and a vacuum generator to create a suction drawing a portion of the surface beyond the end portion, enabling the end portion to penetrate the portion of the surface as the needle is translated along the path. - View Dependent Claims (9, 10)
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11. A method of transdermally transporting a substance across a surface of a biological body, comprising the steps of:
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providing suction to a target area of the surface of the biological body; drawing by suction at least a portion of the target area in a direction away from the surface; rotating a needle about an axis that is substantially perpendicular to the surface of the biological body; and penetrating laterally with the needle the drawn portion of the target area. - View Dependent Claims (12, 13, 14, 15, 16)
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17. A transdermal transport device for transporting a substance across a surface of a biological body comprising:
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a vacuum adapted to draw a portion of the surface of the biological body beyond a plane parallel to the surface; and one or more needles, each needle rotatable about an axis substantially normal to the surface and having an end portion configured to penetrate the drawn portion of the surface when the one or more needles are rotated about the axis. - View Dependent Claims (18, 19, 20)
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21. A transdermal transport device for transporting a substance across a surface of a biological body comprising:
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a vacuum adapted to draw at least one portion of the surface of the biological body beyond a plane parallel to the surface; and a plurality of needles rotatable about an axis substantially normal to the surface, at least one of the plurality of needles having an end portion configured to penetrate the drawn portion of the surface when the one or more needles are rotated about the axis. - View Dependent Claims (22, 23, 24)
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25. A method of transdermally transporting a substance across a surface of a biological body, comprising the steps of:
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applying a vacuum to draw at least one portion of the surface of the biological body beyond a plane parallel to the surface; rotating a plurality of needles about an axis substantially normal to the surface of the biological body; and penetrating the at least one drawn portion of the surface with the rotated plurality of needles. - View Dependent Claims (26, 27, 28)
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Specification