US 12,329,894 B2
Systems and methods for improving control responsiveness during aspiration
Adam Darwin Downey, Kalamazoo, MI (US); Brett Merkel, Portage, MI (US); Michael Teasdale Smith, Bellevue, WA (US); Robert Mitchell Baldwin, Grand Rapids, MI (US); Benjamin Fineout, Zeeland, MI (US); Jon Bodnar, Keller, TX (US); Darryl D. Daniel, II, Pflugerville, TX (US); Anthony Gatica, Cedar Park, TX (US); and Mark Friedman, Portage, MI (US)
Assigned to Stryker Corporation, Portage, MI (US)
Filed by Stryker Corporation, Kalamazoo, MI (US)
Filed on Jul. 28, 2023, as Appl. No. 18/227,622.
Application 18/227,622 is a continuation of application No. 17/279,008, granted, now 11,712,505, previously published as PCT/US2019/052689, filed on Sep. 24, 2019.
Claims priority of provisional application 62/847,545, filed on May 14, 2019.
Claims priority of provisional application 62/835,224, filed on Apr. 17, 2019.
Claims priority of provisional application 62/749,355, filed on Oct. 23, 2018.
Claims priority of provisional application 62/735,485, filed on Sep. 24, 2018.
Prior Publication US 2023/0381397 A1, Nov. 30, 2023
Int. Cl. A61M 1/00 (2006.01); A61M 39/22 (2006.01); A61M 39/24 (2006.01); A61M 39/28 (2006.01)
CPC A61M 1/742 (2021.05) [A61M 1/72 (2021.05); A61M 1/73 (2021.05); A61M 1/743 (2021.05); A61M 1/782 (2021.05); A61M 39/223 (2013.01); A61M 39/24 (2013.01); A61M 39/28 (2013.01); A61M 2039/248 (2013.01); A61M 2205/3331 (2013.01); A61M 2205/50 (2013.01); A61M 2205/52 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An aspiration system to control vacuum pressure in an ultrasonic surgical handpiece to result in improved control responsiveness during aspiration, the system comprising:
a console comprising a vacuum pump;
a surgical waste receiver;
a clean side flow path, the clean side flow path positioned between the vacuum pump and the surgical waste receiver;
a dirty side flow path;
a fluid backflow device in communication with the dirty side flow path;
a clean side venting mechanism in communication with the clean side flow path; and
a second venting mechanism in communication with the fluid backflow device,
wherein the dirty side flow path is positioned between the ultrasonic surgical handpiece and the fluid backflow device, and
wherein the clean side flow path has a compliance under pressure greater than the dirty side flow path.