Gene analyzer and gene analyzing system and method using the same

A gene analyzer that analyzes a gene-related signal from a sample introduced into a test cartridge, the gene analyzer comprising:

• a metal block including a test cartridge mounting portion configured to accommodate the test cartridge and a heater configured to apply a temperature to the sample;
• a heat insulator which is applied to the heater of the metal block and blocks outside air;
• a light source element configured to emit light to the sample;
• a light-receiving element configured to measure fluorescence generated in the sample due to the light source element;
• a block light source path formed in the metal block so that the light emitted from the light source element reaches the sample;
• a block fluorescent path formed in the metal block so that the fluorescence generated in the sample reaches the light-receiving element;
• a heat insulator light source path formed in the heat insulator so that the light emitted from the light source element reaches the sample;
• and
• a heat insulator fluorescent path formed in the heat insulator so that the fluorescence generated in the sample reaches the light-receiving element,
• wherein the light source element and the light-receiving element are disposed in the block light source path, the block fluorescent path, the heat insulator light source path, and the heat insulator fluorescent path.