SPECIFICATION:

The Mapleson F circuit, commonly known as the Jackson-Rees modification of the Ayre’s T-piece, is a type of anesthetic breathing system used primarily in pediatric anesthesia. Here’s a short product specification:

Mapleson F Circuit (Jackson-Rees Modification)

• Application: Pediatric anesthesia, controlled or assisted ventilation, suitable for neonates and infants due to its low resistance and lightweight design.
• Components:

• • T-piece: A central piece connecting the fresh gas flow inlet, the breathing tube, and the expiratory limb.
  • Reservoir Bag: An open-ended bag attached to the expiratory limb, allowing manual control of ventilation and visual assessment of breathing.
  • Breathing Tubing: Low-resistance, flexible tubing connecting the T-piece to the patient.

• Gas Flow Requirements: Requires a high fresh gas flow (2-3 times the patient’s minute ventilation) to prevent rebreathing of exhaled gases.
• Operation:

• • Fresh gas flows into the T-piece during inspiration.
  • Expired gases exit through the reservoir bag during expiration.
  • The open-ended bag allows excess gas to escape, reducing pressure build-up.