Title:
マイクロニードルとその製造方法
Document Type and Number:
Japanese Patent JP6681378
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a microneedle which can correctly supply a fixed quantity of a medicine into the corium by making a tip part penetrate the skin and reach the corium when puncturing the skin with the needle, and provide a manufacturing method of the same.SOLUTION: A microneedle 100 includes: a conical or pyramidal tip part 102 having a sharp tip; and a truncated conical or truncated pyramidal base part 104. The tip part 102 and the base part 104 are connected with the step in a shoulder part 106 of the base part 104. The tip part 102 and the base part 104 are formed of different materials. A fixed quantity of a medicine is contained only in the component of the tip part 102. When the skin is punctured with the microneedle 100, the tip part 102 and the base part 104 are separated at a connection portion, only the tip part 102 is left in the skin, and with this, the fixed quantity of the medicine can be correctly given to the human body.SELECTED DRAWING: Figure 1
Inventors:
Keisuke Terada
Application Number:
JP2017235882A
Publication Date:
April 15, 2020
Filing Date:
December 08, 2017
Export Citation:
Assignee:
Geotechnology Co., Ltd.
International Classes:
A61M37/00; A61L31/04; A61L31/06; A61L31/14; A61L31/16
Domestic Patent References:
| JP2016511014A | ||||
| JP2012196426A | ||||
| JP2003238347A |
Foreign References:
| US20050065463 | ||||
| WO2016114213A1 | ||||
| US20140005606 |
Attorney, Agent or Firm:
Makoto Hagiwara