What is a tourniquet? A tourniquet can be defined as a constricting or compressing device used to control arterial and venous blood flow to a portion of an extremity for a period of time. Pressure is applied circumferentially around a portion of a limb at a desired location; this pressure is transferred to the walls [...]

Tourniquet Instrument Technology

What is the purpose of a tourniquet instrument? The purpose of a tourniquet instrument is to safely and accurately supply and regulate the pressure in a tourniquet cuff. Personalized tourniquet instruments: Personalized tourniquet instruments are state-of-the-art, modern pneumatic tourniquet instruments. Click here to learn about the history of tourniquets. They include automatic means of estimating [...]

Tourniquet Injuries: Mechanisms and Prevention

Surgical Tourniquet Injuries It is reliably estimated that pneumatic tourniquets are used in more than one million surgical procedures annually in North America. The potential for injury is significant, although the use of lower, personalized tourniquet pressure levels and shorter tourniquet times are reducing the number, nature and extent of reported injuries. Injuries resulting from [...]

Tourniquet Cuff Application

Applying the Tourniquet After the patient is brought into the OR, apply the tourniquet at the desired location on the limb, pressurized within the appropriate pressure range for an appropriate period of time. The following sections provide a general sequence of events for preparation, cuff application and setting up the tourniquet instrument (Note: This sequence [...]

Safety Considerations During Use

The following should be considered during tourniquet use to reduce the risk of tourniquet-related complications: Intraoperative monitoring Tourniquet deflation Bilateral procedures Intravenous Regional Anesthesia procedures Documentation Troubleshooting Intraoperative monitoring Intraoperative monitoring of tourniquet safety parameters reduces the risk of complications. During the procedure, it is important to monitor the patient's blood pressure, tourniquet pressure, and [...]

Personalized Scalp Tourniquets

Alopecia (hair loss) is a common consequence of cancer treatment known to have a profound impact on quality of life.  Tourniquet technologies have been investigated from the mid-1960s to early 1980s as a strategy for preventing chemotherapy-induced alopecia (CIA) but their ambiguous results precluded incorporation into any standard of treatment [1].  Fundamental advances inherent in [...]

Personalized Blood Flow Restriction (BFR) Rehabilitation

Why is it crucial to use personalized restriction pressures in blood flow restriction (BFR) rehabilitation? Problems in current BFR rehabilitation practice Blood Flow Restriction (BFR) applied to a limb during low intensity exercise has been shown to increase muscle size and strength across different age groups.  However, a review of BFR rehabilitation literature shows that inconsistencies [...]

Personalized BFR Rehabilitation for Patients with Possible Prior Nerve Injury

A question was raised recently as to whether it is safe and reasonable to conduct personalized BFR rehabilitation on a patient who may have a prior nerve injury.  After consideration of the evidence-based clinical literature, and in consultation with experts in neurology and orthopedic/arthroscopic surgery, the following information is provided in response: There is no [...]

Pediatric Tourniquets

Pediatric patients are different from adult patients in that they have smaller limb circumferences and limb lengths, different mass of muscle and other soft tissues, and different physiological characteristics such as blood pressures and heart rate. These characteristics can vary greatly within the pediatric population from neonatal to adolescent patients. To ensure safe and effective [...]

Limb Occlusion Pressure (LOP)

What is Tourniquet “Limb Occlusion Pressure” (LOP)? Many studies and reviews published in the clinical literature have shown that higher tourniquet pressures and higher pressure gradients are associated with higher risks of tourniquet-related injuries, e.g. [1-7].  Studies have also shown that lower tourniquet pressures are associated with lower complications and pain, e.g. [8-9].  Therefore, when [...]