Anesthesia-Components-Introduction

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Surgical Anesthesia: 

Surgical Anesthesia Jose D. Chinchilla, LVT, RLATG Training Coordinator Priority One Services A Components Introduction

Anesthesia Components: 

Anesthesia Components Frame Regulator Flowmeter Oxygen Flush Assembly Vaporizer Anesthetic Supply System Scavenging System Anesthesia Machine

Anesthesia Components: 

Anesthesia Components Anesthesia Machine Frame Supports the components of the anesthetic machine Several styles available

Anesthesia Components: 

Anesthesia Components Anesthesia Machine Frame Regulator Placed on O 2 tanks to decrease pressure from tank 2 types of tanks “E” Tanks 650L @ 1800PSI “H” Tanks 7100L @ 2200PSI Output pressure adjusted with knob

Anesthesia Components: 

Anesthesia Components Anesthesia Machine Frame Regulator Flowmeter Controls the amount of air released into the anesthetic circuit Calculation: (Tidal volume - mL) x (Breathes per minute) / (1000mL/Liter)= Liters Resp. per Minute

Anesthesia Components: 

Anesthesia Components Anesthesia Machine Frame Regulator Flowmeter Oxygen Flush Assembly High flow oxygen straight from O2 supply 45-50psi Do not use while connected to patient through tracheal tube Use to flush anesthetic gases from circuit and minimize exposure

Anesthesia Components: 

Anesthesia Components Anesthesia Machine Flowmeter Oxygen Flush Assembly Vaporizer Changes liquid agent to a vapor Delivers the vapor into the moving steam of oxygen in controlled amounts Must b e serviced to maintain accuracy of delivery and safety Caution with refurbished models

Anesthesia Components: 

Anesthesia Components Anesthesia Machine Oxygen Flush Assembly Vaporizer Anesthetic Supply System a.k.a Breathing circuits Rebreathing Exhaled air is cleaned and reused with the patient Non-rebreathing Exhaled air is taken by scavenging system

Anesthetic Supply Systems: 

Anesthetic Supply Systems Rebreathing Circuit Modified from Nakae Y et al. Anesthesia and Analgesia 1996;83:488-492 Non-Rebreathing Circuit

Anesthesia Components: 

Anesthesia Components Anesthesia Machine Vaporizer Anesthetic Supply System Scavenging Systems Containing Anesthetic Gas Evacuating Gases Filtering Gases Passive vs. Active Evacuation In-facility Vacuum Fume Hoods & Down Draft Tables

Scavenging Systems: 

Scavenging Systems Scavenging Systems Containing Anesthetic Gas NIOSH National Institute for Occupational Safety and Health Permissible Exposure Limits (PEL's) 2 parts per million (PPM) Must make every attempt to limit leaks Where can leaks come from?

Scavenging Systems: 

Scavenging Systems Scavenging Systems Containing Anesthetic Gas Evacuating Gases Waste gas is contained until it can be released to the outside atmosphere Ensure connections are leak free No resistance of gas flow Evacuation lines checked to assure they are clear of obstructions Passive Systems Active Systems

Scavenging Systems: 

Scavenging Systems Scavenging Systems Containing Anesthetic Gas Evacuating Gases In-facility Vacuum Connects the in-house vacuum lines to the exhaust portion of the anesthetic machine Caution: Negative pressure in exhaust line possible Caution: Positive pressure build up in circuit possible

Scavenging Systems: 

Scavenging Systems Scavenging Systems Containing Anesthetic Gas Evacuating Gases Filtering Gases Fume Hoods & Down Draft Tables Applies negative pressure to procedure area not just exhaust. Less possibility of incorrect use Must keep patient and exhaust within cabinet or 30” from table

Scavenging Systems: 

Scavenging Systems Scavenging Systems Containing Anesthetic Gas Evacuating Gases Filtering Gases Activated Charcoal Adsorbent Material Management of Canisters 25% of Original Canister Weight Documentation