Direct in-scope suction system

A direct in scope suction system for removing calculus fragments from a patient comprising:

• A calculus fragment retrieval device 102 comprising a body 202 having a channel 302 comprising a proximal end 304 and a distal end 306 configured to be removably attached to an ureteroscope 104 via a scope connecting port 206,
• wherein:
• the said channel 302 acts as a medium to introduce laser fibre or any other accessory for surgery, infusing saline liquid to kidneys as well as to aspire debris from the kidneys of a patient;
• the said channel 302 further comprising an inlet port 308 and an outlet port 310 near the proximal end 304 of the said channel 302,
• wherein:
• the said inlet port 308 and the outlet port 310 are connected to an inlet tube 104 and an outlet tube 106, both of which are further connected to a pump unit 114 for irrigation and negative pressure;
• and
• a trigger lever 314 being rotatable against a torsion spring 318 and is connected to a pincher tab 316 on the said body 102,
• wherein:
• the said pincher tab 316 comprises of an upper tab 404 and a lower tab 406 that selectively controls the suction and irrigation flow through the working channel when the user presses the trigger lever 314.