GENERAL INFORMATION
7 GENERAL INFORMATION
should be placed in a position slightly below body level.
• Completely remove the delated cuff, matching Limb Protection Sleeve or any underlying padding immediately
following final cuff deflation. Even the slightest impedance of venous return may lead to congestion and pooling of
blood in the operative field. After the cuff has been fully deflated and removed from the patient, the unit can be set
to STANDBY.
ADVERSE EFFECTS
A dull aching pain (tourniquet pain) may develop throughout the limb following use. Stiffness, weakness, reactive
hyperemia, & skin discolouration may also occur to some degree in all patients after tourniquet use.
Pathophysiologic changes due to pressure, hypoxia, hypercarbia, and acidosis of the tissues occur and become significant
after about 1 1/2 hours of tourniquet use.
Symptoms of tourniquet paralysis are motor paralysis and loss of sense of touch, pressure, and proprioceptive responses.
Intraoperative bleeding may be caused by:
• The slight impeding effect exerted by an unpressurized cuff (and its limb protection material or padding, if used),
which prevents venous return at the beginning of the operation,
• Blood remaining in the limb because of insufficient exsanguination,
• Inadequate tourniquet pressure (between systolic and diastolic blood pressure of the patient), or slow inflation and
deflation, all of which allow arterial blood to enter while preventing venous return,
• Blood entering through the nutrient vessels of the long bones, such as the femur or humerus.
Some other adverse effects of tourniquet use identified in the published medical literature include:
• Cardiovascular, respiratory, cerebral circulatory, and hematological effects related to the metabolic changes that
result from ischemia caused by the pneumatic tourniquet applied to the extremity during surgery.
• Temperature changes
• Prolonged postoperative swelling of the affected limb
• Arterial injury
• Skin injuries (e.g. blistering, bruising, necrosis)
• Compartment syndrome
• Deep Vein Thrombosis
• Rhabdomyolysis
• Skin chemical burns caused by solutions used for operative preparation passed underneath the tourniquet cuff and
remaining there during inflation
• Tissue or muscle injury may occur due to ischemia and local pressure
• Reperfusion injury may occur to the limb and produce systemic effects if the tourniquet inflation is prolonged
• Hematoma
Delfi recommends that users regularly review published medical literature for other adverse effects that warrant
careful consideration before use of a tourniquet during surgical procedures.
SPECIFICATIONS
Use only supplied AC adapter / power cord assembly, Delfi
(REF 7-2200-020)
~ AC Power Mains Line Voltage Range
100-240 ~ (AC), 50/60 Hz. Auto switching
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