Selected article for: "circuit pressure and negative pressure relief"
Author: Micha Sam Brickman Raredon; Clark Fisher; Paul Heerdt; Ranjit Deshpande; Steven Nivison; Elaine Fajardo; Shamsuddin Akhtar; Thomas Raredon; Laura E. Niklason
Title: Pressure-Regulated Ventilator Splitting (PReVentS): A COVID-19 Response Paradigm from Yale University
  • Document date: 2020_4_6
    • ID: mqj071gp_46
    Snippet: Step 3: Assemble the Inspiratory Limb of the Circuit (Figure 7) : a. Choose one of the sets of paired T-pieces to be used for the inspiratory limb. b. Attach an in-line pressure-gated valve, followed by a one-way valve, to each end of the T-assembly. Flow of valves should be out of the T-piece pair, in both directions. c. TAKE NOTE: At this point it is important for patient safety to add a negative pressure relief valve into the circuit. While it.....
    Document: Step 3: Assemble the Inspiratory Limb of the Circuit (Figure 7) : a. Choose one of the sets of paired T-pieces to be used for the inspiratory limb. b. Attach an in-line pressure-gated valve, followed by a one-way valve, to each end of the T-assembly. Flow of valves should be out of the T-piece pair, in both directions. c. TAKE NOTE: At this point it is important for patient safety to add a negative pressure relief valve into the circuit. While it is not demonstrated in the provided photographs, it is shown in Figure 2 with proper orientation. To do this, add a T-piece after each of the one-way valves from the previous step, and place another one-way valve onto one open port on each of these T-pieces. Flow of all valves must be inward toward this T-piece. d. At the open port on each of these T-pieces, connect the inspiratory limb of a patient circuit. e. Attach an HME/microbial filter to the end of each patient Y-piece to minimize patient cross-contamination and dissemination of virus into the circuit.

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