FAQ for Airway Management
Is the black Ambu Mark III Resuscitator made of Natural Rubber Latex?
No, except for the black cuff with the orange stopper of the transparent face mask that contains Natural Rubber Latex, all other rubber parts of the Ambu Mark III Resuscitator are made of the following rubber materials: EPDM, Chloroprene and Silicone rubber.
For an overview of all materials of the product parts please refer to the Ambu Directions for use of the individual product.
What is the use of the Ambu Mark III Resuscitator in polluted or toxic atmosphere characterized by?
As to ventilation in polluted or toxic atmosphere the Ambu Mark III Resuscitator (with the gas filter adapter for attachment of various standard gas filters) offers considerably better protection against penetration of various gases compared to resuscitators made of Silicone rubber.
The standard Ambu Mark III Resuscitator has an outer cover made of Chloroprene rubber providing excellent protection. The special Ambu Mark III Resuscitator, however, has an outer cover made of Butyl rubber providing optimal protection.
Below is a table comparing penetration of selected gases in different rubber materials.
Penetration of gases in vulcanized material in 10-9 cm2 x sec. -1 x at-1 at 80 degrees C
|
| Rubber basis |
Oxygen |
Nitrogen |
Carbon dioxide |
| Natural rubber |
400 |
360 |
2,100 |
| Chloroprene rubber(Ambu Mark III, standard model) |
90 |
80 |
810 |
| Butyl rubber (Ambu Mark III, special model) |
50 |
35 |
290 |
| Silicone rubber |
4,100 |
3,600 |
13,000 |
Source: Walter Null - Chemie und Technologie der Silicone, Chapter 9, p. 446.
The above table shows that:
1) Chloroprene rubber offers better protection against penetration of gases compared to Silicone rubber.
2) Butyl rubber offers even better protection.
PEEP ventilation - can you explain something about that?
Positive End-Expiratory Pressure (PEEP) is an integral part of respiratory treatment in a considerable range of critically ill patients of any age. It is indicated especially when adequate oxygenation cannot be achieved by employing intermittent positive pressure ventilation with high oxygen concentration. It is also indicated when the oxygen transfer is extremely bad such as during cardiopulmonary (CPR) resuscitation with a circulation being maintained entirely artificially and during resuscitation of nearly drowned patients with considerable shunt.
The Ambu PEEP valve enables the trained operator to start PEEP ventilation during prehospital treatment and during transport of patients.
Where can I find scientific articles about ACD-CPR with the Ambu CardioPump®?
Abstracts are available at PubMed, Library of Medicine http://www.ncbi.nlm.nih.gov/PubMed/
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