US 12,083,302 B2
Dual pump arthroscopic irrigation/aspiration system with outflow control
Eric Stubkjaer, Gulfport, FL (US); David D. Blight, Largo, FL (US); Peter C. Miller, Largo, FL (US); and Karl W. Guenther, Palm Harbor, FL (US)
Assigned to Conmed Corporation, Utica, NY (US)
Filed by Conmed Corporation, Utica, NY (US)
Filed on Mar. 13, 2023, as Appl. No. 18/182,888.
Application 18/182,888 is a division of application No. 16/448,141, filed on Jun. 21, 2019, granted, now 11,602,590, issued on Mar. 14, 2023.
Application 16/448,141 is a division of application No. 15/077,348, filed on Mar. 22, 2016, granted, now 10,369,270, issued on Aug. 6, 2019.
Application 15/077,348 is a division of application No. 14/061,922, filed on Oct. 24, 2013, granted, now 9,308,315, issued on Apr. 12, 2016.
Application 14/061,922 is a division of application No. 11/642,457, filed on Dec. 20, 2006, granted, now 8,591,453, issued on Nov. 26, 2013.
Prior Publication US 2023/0211069 A1, Jul. 6, 2023
Int. Cl. A61M 3/02 (2006.01); A61M 1/00 (2006.01); A61M 39/28 (2006.01)
CPC A61M 3/0258 (2013.01) [A61M 1/72 (2021.05); A61M 1/74 (2021.05); A61M 1/77 (2021.05); A61M 1/772 (2021.05); A61M 3/0201 (2021.05); A61M 3/0202 (2021.05); A61M 3/0208 (2014.02); A61M 3/0212 (2014.02); A61M 3/0216 (2014.02); A61M 3/022 (2014.02); A61M 39/28 (2013.01); A61M 1/80 (2021.05); A61M 2205/12 (2013.01); A61M 2205/3331 (2013.01); A61M 2205/3344 (2013.01); A61M 2205/50 (2013.01); A61M 2205/6081 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A method for pressure sensing comprising the steps of:
providing a fluid pump system comprising: (i) a console having a first fluid pump for pumping fluid from a source to a surgical site and a second fluid pump for removing fluid from the surgical site at a first predetermined rate, wherein the fluid pump system intermittently operates in conjunction with a surgical tool which, when the surgical tool is operational, the surgical tool removes the fluid from the surgical site at a second predetermined rate greater than the first predetermined rate; (ii) a sensor for sensing a predetermined parameter of the surgical tool and providing an output signal indicating that the surgical tool is operating; (iii) a control system responsive to the output signal to actuate the second fluid pump to remove the fluid from the surgical site at the second predetermined rate; (iv) a first fluid inflow tube attached to a first transducer disposed within the first fluid pump, wherein the first fluid inflow tube is connected to a fluid inflow port; and (v) a scope sheath comprising the fluid inflow port and a pressure sensing port, wherein the pressure sensing port is connected to a second fluid inflow tube attached to a second transducer on the console;
powering the surgical tool through an electrical power cord;
detecting, by the sensor, the predetermined parameter which is associated with an electrical current flowing in the power cord, wherein the sensor is adapted to be situated adjacent to the power cord;
detecting operation of the first fluid pump and the second fluid pump wherein a pressure sensed by the first transducer is less than a predetermined amount; and
receiving pressure data from the first transducer.