Patent ID: 11944329
Assignee: WELL LEAD CO, LTD
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. A device for removing a stone, a stone fragment, a tissue fragment or a foreign body from a patient comprising:
a suction evacuation assembly which includes a sheath and one or more side arms;
an obturator which is configured to be inserted into a proximal end of the sheath and which extends beyond the distal end of the sheath and is releasably secured to the proximal end of said sheath;
said sheath being comprised of a proximal sheath and a distal sheath, said proximal sheath having a proximal end and a distal end and said distal sheath having a proximal end and a distal end;
wherein said proximal sheath and said distal sheath are constructed as a single piece, as two separate pieces secured together, or two separate pieces releasably secured together

wherein the distal end of said proximal sheath is secured to the proximal end of said distal sheath;
said side arm emanating from the outer surface of said proximal sheath;

a pressure regulating mechanism consisting of an opening accessible from the outer surface of said side arm, and extending through said side arm, configured to allow an operator using the device to increase the negative pressure within the device by covering the pressure regulating mechanism or decrease the negative pressure within the device by uncovering the pressure regulating mechanism;
an accessory side arm emanating from the outer surface of said proximal sheath; and
a flexible cap is releasably secured to the proximal end of the sheath.