A Study Evaluating Insertion Site Identification Methods Used to Establish Intraosseous Vascular Access in the Proximal Humerus

Clinicians with no prior training on identifying the proximal humerus IO insertion site to be trained on the Standard Vidacare Method site identification method and perform one unilateral proximal humerus IO needle insertion. The Standard Vidacare Method description is: Palpate up the proximal humerus towards the anterior shoulder just above the surgical neck, to the greater tubercle of the proximal humerus. Insert the needle set perpendicular to skin with a slight downward angle at the most prominent aspect of greater tubercle to establish proximal humerus intraosseous vascular access. Intraosseous Vascular Access.

Clinicians with no prior training in identifying the proximal humerus IO insertion site to be trained on the Saussy Method site identification method and perform one unilateral proximal humerus IO needle insertion. The Saussy Method description is: Palpate the proximal humerus to locate the intertubercular groove; rotate the forearm medially and laterally to isolate the groove. Move one finger breadth laterally from the groove to the greater tubercle. Insert perpendicular to skin with a slight downward angle to establish proximal humerus intraosseous vascular access. Intraosseous Vascular Access

Clinicians with no prior training in identifying the proximal humerus IO insertion site to be trained on the Davlantes Method site identification method and perform one unilateral proximal humerus IO needle insertion. The description of the Davlantes Method is: Using one hand, place the thumb on the acromioclavicular joint in the natural recess or "pocket" between the distal clavicle and the humeral head, wrapping the rest of the hand around the upper arm. The hand should be oriented such that the index finger and rest of the hand is at a 90-degree angle to the thumb. The webspace between the thumb and index finger will be approximately where the surgical neck of the humerus is; move one finger breadth (approximately 1 cm) superior. Insert perpendicular to skin with a slight downward angle to establish proximal humerus intraosseous vascular access. Intraosseous Vascular Access

Clinicians with no prior training in identifying the proximal humerus IO insertion site to be trained on the Campbell Method site identification method and perform one unilateral proximal humerus IO needle insertion. The Campbell Method description is: With the fingers on both hands fully extended similar to a karate chop, place one hand into the anterior joint space (acromioclavicular joint) of the patient. Place the second "karate chop" hand along the midline of the patient's lateral shoulder; touch the pinkie fingers over the superior aspect of the patient's shoulder. Overlap the thumbs on the patient's shoulder, which will be at the most prominent aspect of the greater tubercle. Insert the needle set perpendicular to skin with a slight downward angle to establish proximal humerus intraosseous vascular access. Intraosseous Vascular Access

Healthy Subjects received bilateral intraosseous (IO) vascular access in the proximal humerus by device operators using the Saussy Method on one proximal humerus and the Campbell method on the other proximal humerus.

Subjects received bilateral intraosseous (IO) vascular access in the proximal humerus by device operators using the Davlantes Method on one proximal humerus and the Standard Vidacare method on the other proximal humerus.