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So far TLai has created 25 blog entries.

Introduction

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 [...]

What are Internal Tourniquets?

A recent US patent for an ‘internal tourniquet for surgery’ [1] described innovation that opens the door to extending tourniquet-related concepts to surgical procedures not previously amenable to conventional tourniquets, especially procedures near truncal-extremity junctions, including hip and shoulder regions, and in the deep abdomen. Synergies exist by integrating this internal tourniquet innovation with related [...]

Tourniquets for Treating Open Fractures and Traumatic Injuries: Contraindicated or Not?

Overview: A current overview of the use of tourniquets in surgery and traumatic injury is provided elsewhere [1]. Open fractures: The use of a tourniquet is contraindicated in the surgical treatment of open limb injuries because it is necessary to make an assessment of the devascularized zone of injury for the purpose of wound management [...]

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 Technology

What is the purpose of a tourniquet cuff? The purpose of a tourniquet cuff is to safely stop or restrict arterial blood flow into a portion of an extremity by applying a uniform circumferential pressure around the extremity at a desired location. Pneumatic tourniquet cuffs In general, a pneumatic tourniquet cuff is composed of an [...]

Tourniquet Cuff Selection

In the United States, pneumatic tourniquet cuffs are regulated as Class I medical device by the Food and Drug Administration (FDA). Risks of injuries to patients and legal liability for users arise from use of a pneumatic tourniquet cuff not meeting the FDA requirements. Therefore, it is important to only use pneumatic tourniquet cuffs that [...]

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 [...]

Preoperative Patient Assessment

Patient Assessment The perioperative staff should assess the patient preoperatively for potential contraindications and risks [1]. The final decision on whether or not to use a tourniquet rests with the attending physician. Potential contraindications for tourniquet use Perioperative staff should screen the patient preoperatively for the following potential contraindications [1]: Venous thromboembolism, Impaired circulation or [...]