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Compliant With Clinical Guidelines

Cuff inflation range of 50 - 475 mmHg, makes the Delfi Portable Tourniquet System (P.T.S.) compliant with all current clinical guidelines requiring that tourniquet pressures be kept to the minimum effective pressures.  Example:

Excerpt: 2007 AORN Recommended Practices for the Use of the
Pneumatic Tourniquet in the Perioperative Practice Setting

Recommended Practice VIII
“Tourniquet inflation pressure should be kept to the minimum effective pressure.”

Over pressurization may cause pain at the tourniquet cuff site; muscle weakness; compression injuries to blood vessels, nerve, muscle, or skin; or extremity paralysis.

Pressure settings should be based on limb occlusion pressure (LOP). Research studies have shown that occlusion can be achieved using a lower pressure when using a LOP method in conjunction with a wide tourniquet cuff in adult patients.

Nerve damage may result from excessive tourniquet pressure or uneven padding. Catastrophic neurological complications (e.g., permanent nerve palsy) can occur with excessive tourniquet inflation pressures.

Sources:

P C Kam, R Kavanagh, F F Yoong, “The arterial tourniquet: Pathophysiological consequences and anaesthetic implications,” Anaesthesia 56 (June 2001) 534-545.

J P Estebe et al, “Tourniquet pain in a volunteer study: Effect of changes in cuff width and pressure,” Anaesthesia 55 (January 2000) 21-26.

J A McEwen et al, “Tourniquet safety in lower leg applications,” Orthopedic Nursing 21 (September/October 2002) 55-62.

R A Pedowitz et al, “The use of lower tourniquet inflation pressures in extremity surgery facilitated by curved and wide tourniquets and an integrated cuff inflation system,” Clinical Orthopedics and Related Research 287 (February 1993) 237-244.

A S Younger, J A McEwen, K Inkpen, “Wide contoured thigh cuffs and automated limb occlusion measurement allow lower tourniquet pressures,” Clinical Orthopedics and Related Research 428 (November 2004) 286-293.

B Tuncali et al, “A new method for estimating arterial occlusion pressure in optimizing pneumatic tourniquet inflation pressure,” Anesthesia and Analgesia 102 (June 2006) 1752-1757.

A J Hodgson, “A proposed etiology for tourniquetinduced neuropathies,” Journal of Biomechanical Engineering 116 (May 1994) 224-227.

M D Jacobson et al, “Muscle functional deficits after tourniquet ischemia,” American Journal of Sports Medicine 22 (May-June 1994) 372-377
 
Last Updated May 2008 © Copyright 2008 Delfi Medical Innovations Inc.