9018.11 - Electrocardiographs, and parts and accessories thereof:

This HTS classification covers electrocardiographs, which are medical devices designed to record the electrical activity of the heart over a period of time. These instruments are crucial for diagnosing various cardiac conditions by analyzing waveforms that represent the heart's electrical impulses. The classification extends to include essential parts and accessories for these electrocardiographs, such as electrodes, cables, and power supplies, which are necessary for the proper functioning of the main apparatus.

Distinguishing this category from its siblings, 9018.12 (ultrasonic scanning apparatus), 9018.13 (magnetic resonance imaging apparatus), and 9018.14 (scintigraphic apparatus), is based on the specific diagnostic principle employed. While all fall under electro-diagnostic apparatus, 9018.11 focuses exclusively on the electrical recording of cardiac function, whereas the siblings utilize different imaging or detection technologies like sound waves, magnetic fields, or radioactive isotopes.

Within 9018.11, further subdivisions clarify the specific nature of the classified items. "Electrocardiographs" refers to the complete, primary devices. "Printed circuit assemblies" cover key internal electronic components, vital for the device's operation. Finally, "Other" serves as a residual category for any remaining parts, accessories, or sub-assemblies not specifically enumerated, ensuring comprehensive coverage for all related components of electrocardiographic equipment.