External Dimensions; Operation Principles; Standards And Compliances - A&D AND TM-2657P Instruction Manual

4.3. External dimensions

4.4. Operation principles

The cuff pressure is raised to approximately 30 mmHg higher than the anticipated systolic
pressure and then gradually depressurized. Pulsations occur in the cuff pressure that matches
the heart rate. These pulsations have an undulating pattern. They start small and then gradually
increase with depressurization. After the maximum amplitude (MAP) is reached, they decrease.
An oscillometric blood pressure monitor analyzes the amplitude waveform data of these
pulsations to determine the systolic and diastolic blood pressures.
4.5. Standards
The TM-2657P Automatic Blood Pressure Monitor complies with the following standards:
IEC 60601-1:2012 (Medical electrical equipment – Part 1: General requirements for safety and
essential performance);
IEC 60601-1-2:2014 (Medical electrical equipment – Part 1-2: General requirements for basic safety
and essential performance - Collateral Standard: Electromagnetic disturbances - Requirements and
tests);
EN ISO81060-1:2012(Non-invasive sphygmomanometers - Part 1: Requirements and test methods
for non-automated measurement type)
EN 1060-3: 1997 + A2: 2009 (Non-invasive sphygmomanometers - Part 3: Supplementary
requirements for electro-mechanical blood pressure measuring systems);
EN 1060-4: 2004 (Non-invasive sphygmomanometers - Part 4: Test procedures to determine the
overall system accuracy of automated non-invasive sphygmomanometers)
IEC 80601-2-30: 2009 (Medical electrical equipment –Part 2-30: Particular requirements for the basic
safety and essential performance of automated non-invasive sphygmomanometers).
The TM-2657P is not made with natural rubber latex.
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Unit:mm