ST-504 mode guide
What does the ST-504 Circulation mode label tell you?
Read Circulation as a product program and keep its device meaning separate from personal medical interpretation.
Name the program
Circulation is a controller label.
Observe the cycle
Record chamber order and repeatability.
Use the safety path
Symptoms require a different decision route.
Circulation is a named controller program. It describes how the device operates its air chambers according to the manual. The word does not diagnose poor circulation. It does not prove that a session will change a medical condition.
Read the label with the chamber behavior
The useful question is what happens inside the sleeve. Note which chamber inflates first. Note the order of release. Check whether the controller completes the cycle. A mode label becomes useful when it is connected to these observable details.
The working modes guide explains the product vocabulary. It keeps the program name separate from personal medical interpretation.
Check the equipment before interpreting a sensation
A loose connector can change the pressure pattern. A kinked tube can prevent one section from inflating. A sleeve that is too loose, twisted, or folded can create a concentrated pressure point. Make the physical checks before changing pressure.
Keep the controller within reach. Use a seated position. Confirm that the battery and cable are suitable. If the controller stops unexpectedly, use the troubleshooting guide rather than treating the stop as evidence about circulation.
What a session note can say
A useful note might say: “Circulation mode selected. Lower section inflated first. Sleeve stayed in place. No display message appeared.” That language is concrete. It does not claim that blood flow improved or that a symptom was treated.
Avoid notes such as “the mode fixed my circulation.” A comfort observation and a medical conclusion are different statements.
When the question becomes a safety question
New swelling, one-sided pain, unusual numbness, a wound, a recent procedure, or a sudden skin change should move the reader to safety guidance. Do not use the Circulation label as clearance to continue. Read the safety and contraindications guide and seek appropriate professional guidance when needed.
The manual controls the exact operation. The word Circulation is a product label, not a promise.
If a reader compares the label with another product, match the chamber layout, timing, units, and instructions first. A shared word such as circulation does not prove that two devices perform the same sequence or have the same intended use. Product names should be compared with product evidence.
Source boundary for the label
The instruction for use remains the source for the controller. General FDA medical device information explains regulatory context, not the meaning of a personal symptom.