Abstract: A portable and passive safety intraosseous device to allow for direct introduction of medications, etc., within the intermedullary space of a subject patient's bone or, if needed, the removal of certain substances from such a subject patient's bone. Such a device permits direct drilling and placement of a cannula within the subject bone with access external to the subject patient's skin, permitting, as well, connection of a tube for such introduction/removal purposes. The ability to provide a passive safety unit allows for facilitated utilization in, for instance, emergency situations with the entire device provided for utilization thereof. The device includes a drilling component with a permanently attached stylet and a removable cannula, a power supply for a single drilling operation, a mechanism to draw the stylet back into the drill component after use and disengagement from the cannula, and an automatic closure that activates with the separation of the cannula.

Abstract: A portable and passive safety intraosseous device to allow for direct introduction of medications, etc., within the intermedullary space of a subject patient's bone or, if needed, the removal of certain substances from such a subject patient's bone. Such a device permits direct drilling and placement of a cannula within the subject bone with access external to the subject patient's skin, permitting, as well, connection of a tube for such introduction/removal purposes. The ability to provide a passive safety unit allows for facilitated utilization in, for instance, emergency situations with the entire device provided for utilization thereof. The device includes a drilling component with a permanently attached stylet and a removable cannula, a power supply for a single drilling operation, a mechanism to draw the stylet back into the drill component after use and disengagement from the cannula, and an automatic closure that activates with the separation of the cannula.

Abstract: A system for sensing a position of a body rotating about an axis, the system including at least one inductive sensor positioned in proximity to the body, each of the at least one inductive sensor providing an output; material forming part of the body for effecting a variation in the output of the at least one inductive sensor as a function of axial movement of the body relative to the axis; circuitry for analyzing the output of the at least one inductive sensor to produce a system output indicative of the axial movement.

Abstract: A system for sensing an axial and radial position of a body rotating about an axis independent of the rotational position of the body. The system includes at least one inductive sensor positioned in proximity to the body. A material forming part of the body effects a variation in the output of the inductive sensor as a function of axial and/or radial movement of the body relative to the axis. Output circuitry analyzes the output of the inductive sensor to produce a system output indicative of the axial and/or radial movement independent of the rotational position of the body.