Issue |
J Extra Corpor Technol
Volume 31, Number 2, June 1999
|
|
---|---|---|
Page(s) | 84 - 90 | |
DOI | https://doi.org/10.1051/ject/199931284 | |
Published online | 14 August 2023 |
Original Article
An Improved Bladder for Pump Control During ECMO Procedures
From the Department of Surgery, North Shore University Hospital, and the Department of Surgery, New York University Medical College, Manhasset, New York
* Address correspondence to: Yehuda Tamari North Shore University Hospital 300 Community Drive Manhasset, NY 11030
A new inline reservoir called the Better-Bladder™, now FDA-cleared for long term use, overcomes some disadvantages of the silicone bladder and bladder box used in extracorporeal membrane oxygenation circuits. The Better-Bladder™ provides compliance in the venous line and allows for noninvasive pressure measurements. Both features are useful for controlling pump speed as a function of venous line pressure.
Bench tests showed that the Better-Bladder™ measures pressure noninvasively within ±4% of invasive (i.e., liquid contacting) pressure measurements in a range from −200 to +500 mmHg and at temperatures from 10°C to 37°C. After 60 days, the error in noninvasive pressure measurement with the Better-Bladder™ was less than ±3%. The Better-Bladder™ withstood pressurization to 1700 mmHg for ten days without leaking or failing in other ways. The advantages of the Better Bladder™, along with its accuracy and durability, suggest its use for short and long term pumping applications.
Key words: pump control / bladder / extracorporeal membrane oxygenation / ECMO
© 1999 AMSECT
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