Suction evacuation device

A device for removing a stone, a stone fragment or a foreign body from a patient comprising:

• a suction evacuation assembly which includes a sheath and at least one side arm;
• an obturator having a straight or tapered distal end which is inserted into a proximal end of the sheath and which extends beyond a distal end of the sheath and is releasably secured to the proximal end of said sheath;
• said sheath having a proximal end and a distal end;
• the side arm emanating from an outer surface of said sheath, wherein said side arm further comprises a pressure regulating mechanism comprising a longitudinal slit in respect of an axis of the side arm, accessible from an outer surface of said side arm, extending through said side arm, and having a depth equal to the thickness of a wall of the side arm, which allows a person using the suction evacuation assembly to increase the negative pressure within the suction evacuation assembly by covering the pressure regulating mechanism or decrease the negative pressure within the suction evacuation assembly by uncovering the pressure regulating mechanism;
• a flexible cap releasably secured to the proximal end of the sheath;
• a proximal end of a primary tube releasably secured to said side arm and a distal end of said primary tube releasably secured to a collection container;
• and
• a proximal end of a secondary tube releasably secured to said collection container and a distal end of said secondary tube releasably secured to a negative pressure system;
• wherein said obturator can be withdrawn from said sheath and a scope can be inserted into the sheath through the flexible cap and into said patient in order to visualize said stone or foreign body using said scope;
• and
• wherein the negative pressure system can be activated in order to remove said stone or foreign body from said a body cavity if a diameter of said stone or foreign body is narrower than an inside diameter of said sheath and said side arm, or lithotripsy can be performed on said stone or said foreign body in order to create fragments with a decreased diameter which allow the passage of said fragments within the inside diameter of said sheath and said side arm;
• and
• the stone, foreign body and/or fragments can be collected in said collection container.