Radial ultrasound capsule and system

A radial ultrasound capsule system comprising:

• an ultrasound capsule comprising:
• a housing comprising:
• a motor compartment comprising:
• a proximal face;
• and
• a distal end, wherein the motor compartment has a longitudinal axis;
• and
• a cap configured to seal with the motor compartment in order to form a sensor compartment, the cap includes two orientation pins oriented parallel to a longitudinal axis of the cap less than 180° from each other along an arc of the cap;
• a motor located within the motor compartment, the motor comprises:
• a drive component;
• and
• a shaft rotatably coupled to the drive component and extending distally from the motor compartment into the sensor compartment, the shaft has a longitudinal axis that is parallel to the longitudinal axis of the motor compartment;
• an ultrasound transducer coupled to the shaft, wherein the ultrasound transducer is located at the same longitudinal position as the two orientation pins;
• a plurality of electrical contacts mounted on the proximal face, wherein at least two of the electrical contacts are electrically coupled to the motor;
• and
• a rotational electrical coupler comprising:
• a rotational component mechanically coupled to the shaft and electrically coupled to the ultrasound transducer;
• and
• a stationary component mechanically coupled to the motor compartment and electrically coupled to one or more of the plurality of electrical contacts;
• and
• a catheter comprising:
• a proximal end comprising an access port;
• a distal end comprising:
• a distal face of a same diameter as a proximal face of the ultrasound capsule and coupled to the proximal face of the motor compartment of the housing of the ultrasound capsule and comprising a plurality of electrical contacts;
• and
• a side exit port located proximal from the distal face;
• at least one lumen configured to extend from the access port to the exit port;
• a ramp located at a distal end of one of the at least one lumen;
• and
• a plurality of electrical connectors accessible from the proximal end of the catheter, wherein the plurality of electrical connectors are connected to at least a portion of the plurality of electrical contacts of the distal face.

A radial ultrasound capsule system comprising:

• a catheter comprising:
• a proximal end;
• a distal end comprising:
• a side exit port located proximal from the distal face;
• a lumen configured to extend from the proximal end to the side exit port;
• a ramp located at a distal end of the lumen;
• and
• a cap configured to connect to the distal end of the catheter, the cap includes two orientation pins oriented parallel to a longitudinal axis of the cap less than 180° from each other along an arc of the cap, wherein the two orientation pins extend from a proximal end of the cap to a distal end of the cap;
• and
• an ultrasound device sealed within the cap comprising;
• a motor;
• a rotating shaft coupled to the motor;
• and
• an ultrasound transducer coupled to a distal end of the rotating shaft,
• wherein a proximal face of the cap is a same diameter as the distal face of the distal end of the catheter.