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微針陣列、製造該微針陣列的模鑄方法及所使用的模具

總結

The invention provides a microneedles array, a method for manufacturing the microneedles array and a die for manufacturing the microneedles array. The microneedles array comprises a base and a plurality of microneedles which are integrated with the base, wherein a liquid storage cavity is arranged in the base, and each microneedle are provided with micro-pinholes which are communicated with the liquid storage cavity; the microneedles array is made of plastics, composite materials, and ceramics or metal materials by injection molding; and each microneedle has at least one inclined surface which is inclined towards the central line of the microneedle, and the outlet of each micro-pinhole is positioned on at least one inclined surface, so that the end of the outlet of the microneedle forms apinnacle part. The die specialized for the invention comprises an upper die, a middle die and a lower die, wherein the middle die and the lower die are provided with cavities for forming the microneedles; and the upper die and the middle die are provided with grooves for forming the base. The three-plate die of the invention can be used for conveniently manufacturing the microneedles array with the pinnacles. Since the stripping process in the injection molding method using three layers of die comprising the upper die, middle die and lower die, the method has the advantages of small die drawing resistance and low manufacturing cost.

附加資料

Inventor: RONG, Qi-liang | XU, Yan
Priority Number: CN101856538B
IPC Current: A61M003700 | B29C003344 | B29C004500 | B29C004526
Assignee Applicant: Hong Kong University of Technology
Title: Microneedles array, die casting method for manufacturing microneedle array and die for manufacturing microneedle array
Usefulness: Microneedles array, die casting method for manufacturing microneedle array and die for manufacturing microneedle array
Summary: Micro-pin array.
Novelty: Micro-pin array, has micro-pins provided with inclines that are centrically arranged or axially symmetrically arranged to form sharp peak part at outlet end part of micro-pins

主要類別

生物醫學

細分類別

醫療裝置

其他

XU Yan
YUNG KL

國家/地區

中國內地