MICRONEEDLE ARRAY WITH DIVERSE NEEDLE CONFIGURATIONS
First Claim
1. A surface penetration device comprising:
- a substrate having a first surface and a second surface;
a plurality of first tissue piercing elements extending from and supported by the first surface of the substrate;
the first tissue piercing elements having a common first configuration; and
a plurality of second tissue piercing elements extending from and supported by the first surface of the substrate;
the second tissue piercing elements having a common second configuration, wherein the second configuration is substantially different than the first configuration, wherein at least some of the tissue piercing elements have a distal opening, a proximal opening, and a lumen extending between the distal and proximal openings, and wherein the proximal openings are in fluid communication with an opening in the second surface of the substrate.
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Accused Products
Abstract
The invention relates to a surface penetration device, a method to use the device, and an analyte monitor. Embodiments of the surface penetration device include a substrate with first and second surfaces, and first and second tissue piercing elements, the elements differing in configuration, but each associated with the first surface of the substrate. At least some of the tissue piercing elements have a distal and a proximal opening and a lumen extending between the openings. The proximal openings are in fluid communication with an opening in the second surface of the substrate. Embodiments of the analyte monitor include the features of the penetration device plus an analyte sensor that detects an analyte in a fluid. Embodiments of the method of penetrating tissue include providing a surface penetration device and urging the surface penetration device against a tissue surface until some of the first and second tissue piercing elements penetrate the tissue surface.
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Citations
20 Claims
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1. A surface penetration device comprising:
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a substrate having a first surface and a second surface; a plurality of first tissue piercing elements extending from and supported by the first surface of the substrate;
the first tissue piercing elements having a common first configuration; anda plurality of second tissue piercing elements extending from and supported by the first surface of the substrate;
the second tissue piercing elements having a common second configuration, wherein the second configuration is substantially different than the first configuration, wherein at least some of the tissue piercing elements have a distal opening, a proximal opening, and a lumen extending between the distal and proximal openings, and wherein the proximal openings are in fluid communication with an opening in the second surface of the substrate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An analyte monitor comprising:
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at least one first tissue piercing element having a first configuration; at least one second tissue piercing element having a second configuration, wherein the second configuration is substantially different than the first configuration, wherein at least one of the tissue piercing elements has a distal opening, a proximal opening, and a lumen extending between the distal and proximal opening; a sensing area in fluid communication with the proximal opening of the tissue piercing element; and an analyte sensor adapted to detect an analyte in a fluid located within the sensing area. - View Dependent Claims (13, 14, 15, 16, 17, 18)
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19. A method of penetrating tissue comprising:
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providing a surface penetration device that comprises; a substrate having a first surface and a second surface; a plurality of first tissue piercing elements extending from and supported by the first surface of the substrate;
the first tissue piercing elements having a common first configuration; anda plurality of second tissue piercing elements extending from and supported by the first surface of the substrate;
the second tissue piercing elements having a common second configuration, wherein the second configuration is substantially different than the first configuration, wherein at least some of the tissue piercing elements have a distal opening, a proximal opening, and a lumen extending between the distal and proximal openings, and wherein the proximal openings are in fluid communication with an opening in the second surface of the substrate; andurging the surface penetration device against a tissue surface until at least some of the first tissue piercing elements and at least some of the second tissue piercing elements penetrate the tissue surface. - View Dependent Claims (20)
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Specification