US 12,262,902 B2
Suction evacuation device
Shaw P. Wan, Castle Hayner, NC (US)
Assigned to Well Lead Co, LTD, Guangzhou (CN)
Filed by Shaw P. Wan, Castle Hayner, NC (US)
Filed on Feb. 28, 2024, as Appl. No. 18/590,603.
Application 18/590,603 is a division of application No. 15/325,940, filed on Jan. 12, 2017, granted, now 10,828,050.
Application 18/590,603 is a division of application No. 17/060,876, filed on Oct. 1, 2020, granted, now 11,944,329.
Prior Publication US 2024/0374267 A1, Nov. 14, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 17/22 (2006.01); A61B 1/00 (2006.01); A61M 1/00 (2006.01); A61B 1/307 (2006.01); A61B 17/225 (2006.01); A61B 17/34 (2006.01)
CPC A61B 17/22 (2013.01) [A61B 1/00 (2013.01); A61B 17/2202 (2013.01); A61M 1/7411 (2021.05); A61M 1/85 (2021.05); A61B 1/307 (2013.01); A61B 2017/22038 (2013.01); A61B 2017/22074 (2013.01); A61B 2017/22079 (2013.01); A61B 17/225 (2013.01); A61B 2017/3445 (2013.01); A61B 2217/005 (2013.01); A61M 1/77 (2021.05); A61M 2205/058 (2013.01); A61M 2210/1075 (2013.01); A61M 2210/1078 (2013.01); A61M 2210/1082 (2013.01)] 19 Claims
OG exemplary drawing
 
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 comprising an opening, which has an innate vacuum pressure control mechanism in the form of a control vent accessible from the outer surface of said side arm, 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 optional accessory side arm emanating from the outer surface of said proximal sheath; and
a flexible cap secured to the proximal end of the sheath.