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Delfi's Personalized Tourniquet System for Blood Flow Restriction facilitates the safe use of proven BFR rehabilitation training methods and helps provide optimal clinical outcomes. Featuring patented technology for personalizing tourniquet pressures, specifically designed to safely regulate and control tourniquet pressure for blood flow restriction applications.  

The PTS for BFR system is designed for professionals, and used worldwide by major league and collegiate sports teams,  rehabilitation centres, and an extensive network of Personalized BFR research facilities.

How can PBFR 
Benefit Patients? 

Blood Flow Restriction involves the application of a pneumatic cuff (tourniquet) proximally to the muscle that is being trained. It can be applied to either the upper or lower limb. The cuff is then inflated to a specific pressure with the aim of obtaining partial arterial and complete venous occlusion.

Delfi Personalized BFR Catalog 

Limb Circumference Chart - BFR Tourniquet Cuffs, Reusable 

Cuff Selection Guide 

Recommended Tourniquet Cuff Selection

Determine the patient’s limb shape using diagrams below. Measure the patients limb circumference, then refer to the Limb Circumference Chart for cuff selection.  

To ensure the selected cuff is the correct size for the patient, verify there is sufficient overlap for the Secondary Fastener (located on underside) to fully engage with the loop material on surface of the cuff. Secondary Fasteners provide added stability to the cuff during use. 

 Adult Limbs

Select a BFR Contour Cuff and Matching Limb Protection Sleeve 

A unique contour shape and pivoting fasteners allow the cuff to conform to a variety of tapered (conical) limb shapes. 

XL  Adult Limbs

Select an Easi-Fit BFR Cylindrical Cuff and Matching Limb Protection Sleeve 

A cylindrical cuff provides the best fit for cylindrical shaped and bariatric limbs. 

WARNING: For Delfi’s PTS tourniquet instruments and cuffs, always follow manufacturer’s detailed instructions.

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Cuff Application Guide 

Recommended Tourniquet Cuff Application

This Guide was prepared in consultation with James McEwen, PhD, the inventor of automatic tourniquets, to summarize relevant published guidelines and recommendations.*

Select the most appropriate tourniquet cuff considering limb size and shape: 

  • Cuff shape should allow a snug fit along both proximal and distal edges. 
  • Cuff width should be the greatest width that still assures recommended distances from cuff edges to limb joints.
  • Cuff length should be the minimum that assures overlap around the limb sufficient to fully engage fasteners. 

Use limb protection, ideally a sleeve specifically matched to the selected cuff. 

A limb protection sleeve matched to the size and shape of the selected cuff provides the best protection against skin wrinkling, bruising and other soft tissue injuries to the limb beneath the cuff.* 

Apply the selected tourniquet cuff snugly on the limb, over limb protection. 

A snugly applied cuff allows two fingers easily under the cuff at both proximal and distal edges. If only one finger fits, the cuff is too tight; if three fingers fit, the cuff is too loose. 

A loose cuff will require higher pressure to stop blood flow and may slide to an unsafe position on the limb during use. A tight cuff could impede venous return of blood from the limb even when deflated. 

An automatic tourniquet instrument with modern safety features and audio-visual alarms should be used with the cuff. 

The optimum tourniquet pressure for each patient and cuff application can be set or checked by measuring Limb Occlusion Pressure (LOP).* 

Monitoring of tourniquet safety parameters reduces the risk of complications. During treatment, it is important to monitor tourniquet pressure and time, and to minimize both. 

Upon final deflation of the tourniquet, the tourniquet cuff and underlying limb protection should be immediately removed from the limb. 

* Refer to for an expanded guide and relevant references.

WARNING: For specific tourniquet instruments and cuffs, always follow manufacturers’ instructions.

Download PDF

Related Links 

Additional information and links
AORN is the Association of periOperative Registered Nurses, a professional organization of whose mission is to promote quality patient care by providing its members with education, standards, services, and representation.
Owens Recovery Science (ORS) is a leader in blood flow restriction research and educational programs, and ORS an exclusive distributor of Personalized BFR Delfi products in some regions.


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Advanced touniquet solutions for the best in personalized care.


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