Medical device position sensing components

A medical device, comprising:

• a needle configured to be at least partially inserted into a body, the needle including:
• a sheath;
• a core disposed in the sheath, the core having:
• a distal portion including a distal tip and a proximal end, an interior surface of the proximal end of the distal portion comprising one or more interlocking features;
• and
• a proximal portion distinct from the distal portion, wherein the proximal end of the distal portion is coupled to a distal end of the proximal portion via the one or more interlocking features to define a cavity between the proximal end of the distal portion and the distal end of the proximal portion;
• and
• a device of a position sensing system arranged in the cavity, wherein the device is one of a transmitter device or a receiver device, and the position sensing system is configured to determine a position or an orientation of the distal tip;
• wherein a proximal end of the proximal portion of the core is hollow to receive and proximally direct wires of the device of the position sensing system;
• and
• a handle from which the needle extends distally, the handle including a compartment for receiving the wires of the device of the position sensing system proximally directed from the core.

A medical device, comprising:

• a handle;
• and
• a needle extending distally from the handle, wherein the needle is configured to be at least partially inserted into a body toward a target area, and wherein the needle includes:
• a sheath;
• a core disposed in the sheath, the core having:
• a distal portion including a distal tip;
• and
• a proximal portion distinct from the distal portion, wherein a distal end of the proximal portion comprises a cavity extending an axial length of the distal end of the proximal portion, and wherein a proximal end of the distal portion is coupled to the distal end of the proximal portion to enclose the cavity between the proximal end of the distal portion and the distal end of the proximal portion;
• and
• a device of a position sensing system arranged in the cavity, wherein the device is one of a transmitter device or a receiver device, and the position sensing system is configured to determine a position or an orientation of the distal tip;
• wherein the needle is configured to be in a retracted position within the handle when the needle is at least partially inserted into the body toward the target area;
• and
• wherein the medical device is in communication with a computing device configured to:
• determine, based on at least one of the position or the orientation of the distal tip, a projected trajectory of the distal tip to the target area when the needle is advanced distally from the retracted position;
• and
• generate a graphical user interface overlaying at least one of the position or the orientation of the distal tip and the projected trajectory on an image of the target area for display.