Bilateral humeral guide for intraosseous infusion

A bilateral humeral guide for intraosseous infusion, comprising:

• a three-dimensional shell that is mirror symmetric with respect to reflection in a first plane and configured to fit on either shoulder of a patient, the shell having:
• (a) an alignment hole bisected by the first plane and configured to aid positioning of the shell on the shoulder by aligning the alignment hole on an acromion of the shoulder, and
• (b) two insertion-site indication holes symmetrically positioned on two opposite sides, respectively, of the first plane, each of the insertion-site indication holes being configured to indicate insertion sites for intraosseous infusion through the shell to a target region of a respective humerus of the patient when the shell is fit on the shoulder corresponding to the respective humerus;
• the shell including:
• a top portion bisected by the first plane configured to fit on top of the shoulder;
• a side portion extending from the top portion, bisected by the first plane and configured to fit against a lateral side of an upper arm of the shoulder of the patient;
• and
• two front-back portions extending from the side portion on two respective opposite sides of the first plane, forming a mirror image of each other with respect to reflection in the first plane, each of the front-back portions configured to extend in a medial direction from the side portion;
• the shell further forming:
• a central raised ridge on the side portion along at least part of an intersection between the side portion and the first plane;
• on each of the front-back portions, a medial raised ridge along an edge of the front-back portion farthest from the side portion;
• and
• an upper raised ridge connecting a top end of the central raised ridge to a top end of each medial raised ridge.