• § 870.2050 - Biopotential amplifier and signal conditioner.

• § 870.2060 - Transducer signal amplifier and conditioner.

• § 870.2100 - Cardiovascular blood flowmeter.

• § 870.2120 - Extravascular blood flow probe.

• § 870.2200 - Adjunctive cardiovascular status indicator.

• § 870.2210 - Adjunctive predictive cardiovascular indicator.

• § 870.2220 - Adjunctive hemodynamic indicator with decision point.

• § 870.2300 - Cardiac monitor (including cardiotachometer and rate alarm).

• § 870.2310 - Apex cardiograph (vibrocardiograph).

• § 870.2320 - Ballistocardiograph.

• § 870.2330 - Echocardiograph.

• § 870.2340 - Electrocardiograph.

• § 870.2345 - Electrocardiograph software for over-the-counter use.

• § 870.2350 - Electrocardiograph lead switching adaptor.

• § 870.2360 - Electrocardiograph electrode.

• § 870.2370 - Electrocardiograph surface electrode tester.

• § 870.2390 - Phonocardiograph.

• § 870.2400 - Vectorcardiograph.

• § 870.2450 - Medical cathode-ray tube display.

• § 870.2600 - Signal isolation system.

• § 870.2620 - Line isolation monitor.

• § 870.2640 - Portable leakage current alarm.

• § 870.2675 - Oscillometer.

• § 870.2700 - Oximeter.

• § 870.2710 - Ear oximeter.

• § 870.2750 - Impedance phlebograph.

• § 870.2770 - Impedance plethysmograph.

• § 870.2780 - Hydraulic, pneumatic, or photoelectric plethysmographs.

• § 870.2785 - Software for optical camera-based measurement of pulse rate, heart rate, breathing rate, and/or respiratory rate.

• § 870.2786 - Hardware and software for optical camera-based measurement of pulse rate, heart rate, breathing rate, and/or respiratory rate.

• § 870.2790 - Photoplethysmograph analysis software for over-the-counter use.

• § 870.2800 - Medical magnetic tape recorder.

• § 870.2810 - Paper chart recorder.

• § 870.2840 - Apex cardiographic transducer.

• § 870.2850 - Extravascular blood pressure transducer.

• § 870.2855 - Implantable Intra-aneurysm Pressure Measurement System.

• § 870.2860 - Heart sound transducer.

• § 870.2870 - Catheter tip pressure transducer.

• § 870.2880 - Ultrasonic transducer.

• § 870.2890 - Vessel occlusion transducer.

• § 870.2900 - Patient transducer and electrode cable (including connector).

• § 870.2910 - Radiofrequency physiological signal transmitter and receiver.

• § 870.2920 - Telephone electrocardiograph transmitter and receiver.