Fiducial deployment mechanisms, and related methods of use

A medical device, comprising:

• a shaft having a proximal end and a distal end;
• a lumen disposed through the shaft;
• an opening at the distal end of the shaft in communication with the lumen;
• a fiducial disposed within the lumen, a distal portion of the fiducial is extendable out of the lumen via the opening while a proximal portion of the fiducial that remains connected to the distal portion is disposed inside the lumen;
• and
• a separating mechanism positioned at the distal end of the shaft and adjacent to the opening, the separating mechanism configured to apply a force to the fiducial to separate an intermediate connection between the distal portion of the fiducial and the proximal portion of the fiducial when the distal portion is positioned outside the lumen via the opening, wherein the distal portion is separated from the proximal portion at the intermediate connection that receives the force from the separating mechanism.

A medical device, comprising:

• a shaft having a proximal end and a distal end;
• a lumen disposed through the shaft;
• an opening positioned at the distal end of the shaft in communication with the lumen;
• a fiducial disposed within the lumen, the fiducial including at least a distal portion and at least a proximal portion connected to at least the distal portion, the distal portion is extendable distally out of the shaft via the opening while the proximal portion remains connected to the distal portion and positioned inside the shaft;
• and
• a separating mechanism disposed at the opening, the separating mechanism configured to deploy at least the distal portion of the fiducial from the shaft when the distal portion extends distally from the shaft via the opening, the proximal portion is maintained within the lumen, and the separating mechanism is actuated to generate a force at a region of the fiducial that is between the distal portion and the proximal portion, thereby separating the fiducial at the region to release the distal portion suspended outside the lumen from the proximal portion disposed in the lumen.