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Pulse Simulator, screen shot #1:

Normal pulse

TCM Pulse Simulator is interactive video-animation software for exploring and learning all the possible combinations of parameters possible when palpating the radial pulse. Using graphs and animations, this software can display the traditional pulse types as well as over 900 million variations in order to represent the range of real pulses. (The problem with rote memorization of the 28 classical pulses is that these do not begin to reflect the complex combinations of qualities that are possible in real pulses.) Interaction among pulse parameters has been mathematically modeled based on circulatory biophysics and fluid flow. This software allows you to change pulse parameters individually in order to see the combined effects of various parameters. Pulses are described in terms of 12 fundamental parameters that can be modified independently:

• Rate
• Rhythm
• Strength
• Depth
• Depth Spread
• Length
• Width
• Boundary
• Choppiness
• Slipperiness
• Tidal-ness
• Elasticity

There are 3 different displays for visualizing pulses:

• Pulse Profile Animation - Shows an animation of the pulse profile relative to the finger position and palpation depth.
• Time Profiles Animation - Shows the pulse as a function of time for 3 different palpation depths in a strip-chart-style (i.e, EKG) or oscilloscope-type display.
• Width Profile Snapshot - Shows the pulse profile for 3 different palpation depths (superficial, middle, deep).

The animations can be modified to examine various details about the pulses.

• Palpation Depth: The palpation depth can be changed to see what a pulse would be like at the various palpation depths (superficial, middle, deep).
• Zoom: The Pulse Profile Animation can be zoomed to various magnifications to examine details in the pulse profile.
• Time Span: The time span for the Time Profiles Animation can be set short time spans to examine details of the time profile, or can be set to long time spans to examine irregularities in the rhythm or profile.
• Animation Speed: The animation speed can be slowed to examine the pulse in slow motion.

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