Patent ID: 8486027
Filing Date: 2013-07-16
Classification: A61B,A61M

Abstract:
1. Apparatus for intraosseous fluid infusion or aspiration of bone marrow of a subject, the apparatus comprising: a bone portal comprising: axially-aligned distal and proximal sections, the proximal section extending in a distal direction from a proximate end of the bone portal and the distal section extending in the distal direction from the proximal section to a distal end of the bone portal; and a fluid-transport bore extending between a proximal opening in the proximal section and a distal opening in the distal section; wherein at least a portion of the distal section has a cross-sectional area greater than a cross-sectional area of the proximal section; and an introducer comprising: a stylet supporting the bone portal; a skin contacting assembly located proximal an operative end of the apparatus, the skin contacting assembly comprised of one or more skin-contacting members structurally configured to define a skin contacting plane; the stylet and the bone portal being oriented generally perpendicular to the skin contacting plane and being movable in a direction generally perpendicular to the skin contacting plane from a first position wherein the proximal end of the bone portal is on a first side of the skin contacting plane, at a location distal from the operative end of said apparatus, to a second position wherein the proximal end of the bone portal is on a second side of the skin contacting plane and projects past the one or more skin-contacting members in a proximal direction opposite to the distal direction; and wherein the skin contacting assembly is so structurally formed and oriented with respect to the stylet and the bone portal, such that the stylet and the bone portal are oriented generally perpendicular to skin of a subject when the skin contacting assembly is placed on the skin of the subject.