Hema-T

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Hema-T® is a revolutionary new tourniquet, intended to stop bleeding from an open wound in arm or leg, and prevent life-threatening blood loss. 

Hema-T® can be self-applied or by a caregiver. The application is effortless and takes only seconds, requiring no previous knowledge. 

The unique design of the Hema-T® was created by Prof. Noam Gavriely, MD, DSc, a former IDF medical officer, to address three critical deficiencies in combat and first aid tourniquets – adjusting tourniquet pressure incorrectly, wasting the blood volume in the injured limb, and clotting. Hema-T® rolls up the limb and always applies the right pressure to prevent the bleed – independent of the force used during application – and that rolling action shifts the remaining blood from the limb into the body, so it is available to vital organs, and not left in the limb to clot. 

Hema-T® provides a visual indication for correct application. A pale hand or foot is a clear indication that no blood is left in the limb and the arteries are blocked by the tourniquet. Hema-T® – always the right pressure. Always saves the patient’s blood and protects against blood clots. It may cost a bit more, but Hema-T® is always the right choice to save a valuable life.

 Brand Name: Hema-T® Prevent the Bleed Tourniquet.

FDA Status: Tourniquet, Nonpneumatic, Class I 510(k) exempt, registered.

Patient’s Blood Pressure Limit: 180 mmHg.

Minimum Limb Circumference: 12 inches.

Maximum Limb Circumference: 32 inches.

How it Works: Hema-T® reduces tourniquet application to a fraction of the time required to apply a traditional tourniquet and tighten it to block the arterial bleed. Just roll the Hema-T® up the limb – the right pressure is applied automatically to prevent the bleed. Note that the shoe must be removed for placement of the Hema-T®; however, there is no need to remove pants or shirt. 

In a study1 comparing a CAT tourniquet with a STAT tourniquet, CAT was 50% successful and STAT was less, when self-applied or applied by a care-giver. Hema-T® provides a visual feedback of successful application and addresses the problem with application of too much pressure, as described by Gersoff, et al2,when the CAT rachet is tightened more than necessary to stop bleeding. Hema-T® rolls all the way into the groin or axilla - above the bleeding injury, and never over-applies the pressure. As the Hema-T® is rolled up the limb, it automatically transfuses the remaining blood from the limb into the core where it is available to vital organs. That also prevents blood clots in the limb which could travel to the heart and lungs after the tourniquet is removed. 

Each package includes one Hema-T® tourniquet, instructions (printed on the package) and a yellow sticker to write the time and put on the patient's exposed areas. Time limit is 2 hours. When applying Hema-T to an unstable limb (fracture), two care-givers are needed; one to apply axial traction and the other to apply the Hema-T. 

Safety: Hema-T® is a derivative design of the HemaClear®, exsanguination surgical tourniquet for limb surgery. It uses the same blood exsanguination and arterial occlusion patented technology as used with the HemaClear. Over 2 million HemaClear exsanguination tourniquets have been used in orthopedic limb surgery around the world with an impeccable record of safety. There have been no issues reported to the FDA MAUDE database in over 10 years of usage. 

Maximum Application Time:  All tourniquets have a two-hour use time limit. If longer evacuation time is needed, Hema-T® may be rolled down below the injury while applying direct manual pressure on the bleeding injury. After 10 minutes the Hema-T® can be re-rolled up over the injury site.

Counterindication: Active deep vein thrombosis (DVT) in the injured limb.

1. Smart Tactical Application Tourniquet Versus Combat Application Tourniquet: Comparing Layperson Applications for Arterial Occlusion After a Video Demonstration - PMC https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10461781/#:~:text=Conclusions%3A%20When%20performed%20by%20laypersons,user%20ratings%20than%20the%20STAT.

2. The effect of tourniquet pressure on muscle function, WK Gersoff, et al. Am J Sports Med. 1989 Jan-Feb;17(1):123-7. https://pubmed.ncbi.nlm.nih.gov/2929828/