The AM-01B started as a conversation with a chief anesthesiologist in Manila who liked our AM-01 but wanted more—more flow control, more ventilation modes, more display information. He was running a mixed surgical caseload that included thoracic procedures with one-lung ventilation where precise I/E ratio control made the difference between a smooth case and intraoperative hypoxia. The AM-01B is the machine that came out of that conversation.
At the gas delivery level, the AM-01B upgrades from the AM-01’s dual-flowmeter configuration to a four-tube flowmeter system. This gives you independent, precise control over oxygen and nitrous oxide with finer granularity, which matters when you’re running low-flow anesthesia and every 0.1 liter per minute counts toward your gas consumption economics. The flow range remains 0.1 to 10 liters per minute per channel, but the four-tube layout provides better visual feedback and faster adjustment during induction and emergence. Two vaporizer positions support enflurane, isoflurane, or sevoflurane with halothane as an option, across a 0.5% to 5% setting range.
The ventilator section is where the AM-01B pulls ahead of the AM-01 most clearly. The mode set expands from four to six: A/C, IPPV, SIPPV, IMV, SIMV, and MANUAL. The addition of IMV and SIMV is clinically significant—these modes let you run spontaneous breathing trials and weaning protocols without switching to a separate ICU ventilator, which is particularly useful for prolonged cases where you want to assess the patient’s respiratory drive before extubation. The I/E ratio range widens dramatically from the AM-01’s 1:1.5-to-1:3.0 to a full 4:1 to 1:10 on the AM-01B. That 1:10 expiratory ratio gives thoracic and obese patients the exhalation time they need to avoid air trapping. The 5.4-inch LCD display replaces the AM-01’s LED screen, providing waveform visualization as well as numeric data.
This is the machine for surgical departments that run thoracic cases, bariatric procedures, and prolonged surgeries where ventilation management is an active, ongoing clinical task rather than a set-and-forget parameter. Compared to the AM-01D, which is our entry machine for small ORs and vet clinics with a single vaporizer and manual ventilation emphasis, the AM-01B is a different class of equipment entirely.
If your anesthesiologists are asking for more ventilation modes and finer gas control than the AM-01 provides, the AM-01B is the logical step up. Contact me and I’ll help you compare the AM-01 and AM-01B side by side—I’d rather you buy the right configuration than the wrong one with more features you won’t use.
