Limb-O is a single tube anesthesia breathing circuit. Unlike coaxial systems, the Limb-O is a divided tube, utilizing a flexible septum running the length of the tube. There are many advantages to this design, which combines reduced weight per meter and lower compressible volume loss, with a supple feel and drape. Less plastic means less weight and torque on the patient’s airway management device; Limb-O weighs 34 percent less than coaxial circuits and 25 percent less than traditional circle circuits. 

Estimates suggest patients can lose up to 15 percent of their heat because of cold, dry anesthetic gases. Limb-O effectively transfers heat from the expiratory to the inspiratory side of the circuit, helping to reduce the patient’s energy demands and aiding in their ability to remain normothermic. 

Limb-O is not made with natural rubber latex and is made of polyethylene, polypropylene and polyisoprene. The circuits are available in four lengths: 40 in (1.02 m), 58 in (1.47 m), 72 in (1.83 m) and 108 in (2.74 m). Limb-O has been tested with GE Healthcare anesthesia delivery equipment to ensure performance.

Many additional components can be added to the Limb-O circuits to meet your individual needs. 

Limb-O Anesthesia Breathing Circuit


  • Kits can be customized to meet your needs.
  • Hoses available in 40 in (1.02 m), 58 in (1.47 m), 72 in (1.83 m) and 108 in (2.74 m).
  • Helps lessen patient heat loss.
  • Not made with natural rubber latex.
  • Options range from face masks, GAS sampling lines, filters, HME’s, ECG pads, suction devices, temperature probes and more. 

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