Measurement method, measurement device, and program for measuring a volume of a drug filled in a needle-shaped recess

A measurement device that measures a volume of a drug filled in a needle-shaped recess of a mold in which a plurality of needle-shaped recesses that are inverted types of a micro-needle are formed, the measurement device comprising:

• a reference surface height acquisition unit that acquires a reference surface height that is a height between a reference surface determined in advance with respect to a first surface on the side on which the drug is filled in the mold or a second surface opposite to the first surface, and the second surface;
• a detection result acquisition unit that acquires a first detection result obtained by detecting, for each needle-shaped recess, a measurement wave emitted from a drug surface that is a surface of the drug according to incidence of the measurement wave on the drug in the needle-shaped recess;
• a first height detection unit that detects, for each needle-shaped recess, a first height between the reference surface and the drug surface on the basis of the first detection result acquired by the detection result acquisition unit;
• a second height detection unit that detects, for each needle-shaped recess, a second height from the second surface to the drug surface from the reference surface height acquired by the reference surface height acquisition unit and the first height of each needle-shaped recess detected by the first height detection unit;
• and
• a volume calculation unit that calculates, for each needle-shaped recess, the volume of the drug in the needle-shaped recess on the basis of the second height of each needle-shaped recess detected by the second height detection unit and a known shape of the needle-shaped recess.

A non-transitory computer-readable tangible medium recording a program that causes a computer to function as means for measuring a volume of a drug filled in a needle-shaped recess of a mold in which a plurality of needle-shaped recesses that are inverted types of a micro-needle are formed, the program causing the computer to function as:

• a reference surface height acquisition unit that acquires a reference surface height that is a height between a reference surface determined in advance with respect to a first surface on the side on which the drug is filled in the mold or a second surface opposite to the first surface, and the second surface;
• a detection result acquisition unit that acquires a first detection result obtained by detecting, for each needle-shaped recess, a measurement wave emitted from a drug surface that is a surface of the drug according to incidence of the measurement wave on the drug in the needle-shaped recess;
• a first height detection unit that detects, for each needle-shaped recess, a first height between the reference surface and the drug surface on the basis of the first detection result acquired by the detection result acquisition unit;
• a second height detection unit that detects, for each needle-shaped recess, a second height from the second surface to the drug surface from the reference surface height acquired by the reference surface height acquisition unit and the first height of each needle-shaped recess detected by the first height detection unit;
• and
• a volume calculation unit that calculates, for each needle-shaped recess, the volume of the drug in the needle-shaped recess on the basis of the second height of each needle-shaped recess detected by the second height detection unit and a known shape of the needle-shaped recess.