Use of the Hattler Respiratory Assist Catheter in Severe Respiratory Failure
A new artificial lung device has been developed that potentially provides added support to mechanical ventilation for severely damaged lungs. The Hattler Respiratory Assist Catheter is designed to provide gas exchange (deliver oxygen and remove carbon dioxide) for a period of up to 7 days, providing more time for the lungs to improve.
Extrapolating from large animal data, the hypothesis is that the Hattler Catheter will be capable of providing 30% to 40% of the basal requirements of carbon dioxide exchange in a manner that is dependable and reproducible.
Acute Respiratory Distress Syndrome
Chronic Obstructive Pulmonary Disease
Device: Hattler Respiratory Assist Catheter
|Study Design:||Allocation: Non-Randomized
Endpoint Classification: Efficacy Study
Intervention Model: Single Group Assignment
Masking: Open Label
|Official Title:||Compassionate Use of the Hattler Respiratory Assist Catheter in Severe Respiratory Failure - A Clinical Trial|
- Effective insertion and removal as measured by hemostasis
- Amount of effort required for both insertion and removal
- Peak gas exchange status within a maximum 7 day study
|Study Start Date:||November 2005|
The Hattler Catheter Respiratory Assist Device consists of a Catheter and a drive console. The catheter consists of a bundle of polypropylene hollow fibers (approximately 1000) in 30cm or 35cm length surrounding a helium filled balloon. The balloon is similar to an Intra-Aortic Balloon, however, it is pulsed at 300 beats per minute, while IABP typically operate at 120 bpm. The hollow fibers are similar to fibers utilized in external oxygenators for cardio-pulmonary bypass. No device exists on the market in which fibers surround a balloon, and no device exists on the market in which the hollow fiber bundle is designed to be inserted into the venous system, i.e., the vena cava. External oxygenators are designed to be used in an extracorporeal circulatory loop.
The Hattler Catheter drive console provides the power to drive the helium filled balloon while removing excess oxygen and carbon dioxide from the venous system via the catheter.
|Papworth Hospital NHS Trust|
|Papworth Everard, Cambridge, United Kingdom, CB3 8RE|
|Principal Investigator:||Steven Tsui, MD||Papworth Hospital|