Comprehensive Solutions for Anesthesia and Respirato

  • Light Weight
  • Thermally Efficient
  • Latex Free

A split limb anaesthesia circuit (11mm/11mm diameter) reducing clutter, improving delivered gas temperatures , decreasing weight and environmental impact,
not to mention the great patient range!

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 are evident in its reduced weight per meter and lower compressible volume loss, while retaining a supple feel and drape. There is also the possible added benefit of less torque on the patient interface. Estimates suggest patients can lose up to 15% of their heat because of cold, dry anesthetic gases. Limb-O eff ectively transfers heat from the expiratory to inspiratory side of the circuit, helping to reduce the patient’s energy demands and aiding in their ability to remain normothermic. Limb-O’s patented tubing design supports clinicians’ eff orts in the delivery of a general anesthetic.

Light Weight
Less plastic means less weight and torque on the patient’s airway management device; Limb-O weighs 34% less than coaxial circle circuits and 25% less than traditional circle circuits.*

Size 40”(102 cm) 58” (147 cm) 72” (183 cm) 108” (274 cm)
Weight 106 g 136 g 170 g 230.8 g


Inspiratory and Expiratory Resistance

Flow Rates 10 L/min
(cm H2 O)
20 L/min
(cm H2 O)
30 L/min
(cm H2 O)
40 L/min
(cm H2 O)
50 L/min
(cm H2 O)
60 L/min
(cm H2 O)
Length I E I E I E I E I E I E
40” (102 cm) 0.09 0.10 0.25 0.31 0.59 0.66 0.99 1.12 1.52 1.71 2.05 2.30
58” (147 cm) 0.11 0.13 0.34 0.43 0.76 0.94 1.30 1.64 1.98 2.48 2.65 3.36
72” (183 cm) 0.14 0.16 0.46 0.57 1.06 1.24 1.80 2.12 2.74 3.28 3.69 4.39
108” (274 cm) 0.18 0.22 0.59 0.80 1.34 1.73 2.26 2.97 3.46 4.58 4.82 6.42


Lower Compliance**
The presence of a septum in Limb-O decreases compliance in the circuit to significantly increase delivered volume without sacrificing drape

Size 40” (102 cm) 58” (147 cm) 72” (183 cm) 108” (274 cm)
Compliance 0.64 mL/CmH2O 0.76 mL/cmH2O/td>

0.93 mL/CmH2O 1.29 mL/CmH2O


Thermally Efficient
Net increase of 6.2 °C in the fi rst 15 minutes at 4 L/min fl ow rates on anesthesia


Circuit Materials Latex Free

  • Corrugated Tubing and Septal Wall - Polyethylene/EVA 22mm Connectors – Polypropylene
  • Cuff Band - Polyisoprene
  • Expandable Extension Hose - Polypropylene
* Data on fi le. Weight with connectors.
** Data on fi le. Compliance of circuit @ 100 cmH2O

Take a pain-free approach to anaesthesia care

We have always set the standard for anaesthetic care with solutions specifically designed to enhance patient care. Our innovation spans one of the first-ever disposable air-filled cushion face masks and the Limb-O™ single-tube, dual-lumen breathing circuit.

Single-limb design

Our single-limb circuits provide gas delivery, heat retention and a circle breathing system.

General anaesthesia system customisation
We can provide customised kits with your selection of components to suit your routine cases.
Single-limb design

Our single-limb circuits provide gas delivery, heat retention and a circle breathing system.