Suction Lithotripsy Apparatus, Method and Kit

A medical device, comprising

• a pass-through fitting defining a main body and a side arm, the main body having a proximal end, a distal end, and a first inner wall defining a first lumen extending along a first axis, the side arm having a second inner wall defining a second lumen in fluid communication with the first lumen and extending along a second axis disposed at an angle to the first axis, the first lumen having a first lumen proximal opening disposed at the proximal end of the main body, a first lumen distal opening disposed at the distal end of the main body, a first lumen first inner diameter at the first lumen proximal opening, and a first lumen second inner diameter at the first lumen distal opening, the first lumen first inner diameter greater than the first lumen second inner diameter;
• a first sheath connected to the main body and in fluid communication with the first lumen;
• a second sheath connected to the side arm and in fluid communication with the second lumen;
• and
• a cannula having a proximal end and a distal end disposed through the first lumen proximal opening without blocking fluid flow into the first lumen proximal opening from the external environment such that the distal end of the cannula is disposed distal to the second lumen and a first fluid path is formed between the first inner wall and the cannula;
• wherein a wash fluid passed through the proximal end of the cannula exits the distal end of the cannula;
• and
• wherein a suction force applied to the second lumen pulls the wash fluid exiting the distal end of the cannula into the second lumen or pulls fluid from the external environment through the proximal opening of the first lumen and into the second lumen.

A medical device, comprising

• a pass-through fitting defining a main body and a side arm, the main body having a proximal end, a distal end, and a first inner wall defining a first lumen extending along a first axis, the side arm having a second inner wall defining a second lumen in fluid communication with the first lumen and extending along a second axis disposed at an angle to the first axis, the first lumen having a first lumen proximal opening disposed at the proximal end of the main body, a first lumen distal opening disposed at the distal end of the main body, a first lumen first inner diameter at the first lumen proximal opening, and a first lumen second inner diameter at the first lumen distal opening, the first lumen first inner diameter greater than the first lumen second inner diameter;
• a first sheath connected to the main body and in fluid communication with the first lumen, the first sheath having a flared first sheath proximal end;
• a second sheath connected to the side arm and in fluid communication with the second lumen;
• a locking connector disposed over the flared first sheath proximal end to secure the first sheath to the pass-through fitting;
• and
• a cannula having a proximal end and a distal end disposed through the proximal opening of the first lumen without blocking fluid flow into the first lumen proximal opening from the external environment and such that the distal end of the cannula is disposed distal to the second lumen and a first fluid path is formed between the first inner wall and the cannula;
• wherein a wash fluid passed through the proximal end of the cannula exits the distal end of the cannula;
• and
• wherein a suction force applied to the second lumen pulls the wash fluid exiting the distal end of the cannula into the second lumen or pulls fluid from the external environment through the proximal opening of the first lumen and into the second lumen.