Microneedle assembly
AssigneeTicona LLC
InventorYoung Shin Kim
Life of this patent
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Abstract
A microneedle assembly that is capable of delivering a drug compound (e.g., vaccine) and/or detecting the presence of an analyte is provided. The assembly comprises at least one microneedle extending outwardly from a support. The microneedle includes a polymer composition containing a thermoplastic polymer having a melting temperature of about 250° C. or more. The polymer composition exhibits a melt viscosity of about 100 Pa-s or less and a tensile elongation of about 5% or less.
Claims52
A microneedle assembly comprising at least one microneedle extending outwardly from a support, wherein the microneedle includes a polymer composition containing a thermoplastic polymer having a melting temperature of about 300° C. or more, wherein the polymer composition exhibits a melt viscosity of about 100 Pa-s or less as determined in accordance with ISO Test No. 11443:2014 at a shear rate at a shear rate of 1,000 seconds-1 and temperature of about 30° C. above the melting temperature, wherein a ratio of the deflection temperature under load as determined in accordance with ISO Test No. 75-2:2013 at a load of 1.8 Megapascals to the melting temperature is from 0.75 to 1, and further wherein the polymer composition exhibits a tensile elongation of about 5% or less as determined at in accordance with ISO Test No. 527:2012 at a temperature of about 23° C.
Dependencies are inferred from the claim text.