Devices for use in interventional and surgical procedures and methods of use thereof

A method for medical imaging, comprising:

• providing a bronchoscope;
• providing a device configured to be attached to the bronchoscope, the device including
• an applicator having a proximal end, a distal end, and an internal channel extending from the proximal end to the distal end;
• a shaft having a proximal end, a distal end, and an internal channel extending from the proximal end to the distal end, the shaft being configured to be slidably received within the internal channel of the applicator;
• a catheter configured to be positioned within the internal channel of the shaft;
• a guide wire positioned within the catheter;
• a connector configured to be attached to the distal end of the applicator, configured to engage a bronchoscope, and configured so as to be rotatable with respect to the shaft;
• a handle attached to the proximal end of the applicator, the handle comprising a trigger operable to selectively lock or unlock sliding motion of the shaft with respect to the applicator;
• and
• a radio opaque material attached to an outer portion of the device, the radio opaque material being positioned in a predetermined pattern;
• attaching the device to the bronchoscope;
• placing the bronchoscope within a body cavity of a body of a patient;
• obtaining at least one medical image of at least a portion of the body of the patient, the at least a portion including the body cavity;
• and
• determining a depth of the device within the body based on at least the predetermined pattern and the at least one medical image.