US 12,331,748 B2
Noise and vibration management for smoke evacuation system
Chad S. Frampton, American Fork, UT (US); Shawn K. Horner, Woods Cross, UT (US); Darcy W. Greep, Herriman, UT (US); Frederick Shelton, Hillsboro, UT (US); Jason Harris, Lebanon, OH (US); David Yates, West Chester, OH (US); and Roger Millis, West Jordan, UT (US)
Assigned to Megadyne Medical Products, Inc., Draper, UT (US)
Filed by Megadyne Medical Products, Inc., Draper, UT (US)
Filed on Jul. 3, 2023, as Appl. No. 18/346,675.
Application 18/346,675 is a continuation of application No. 15/826,370, filed on Nov. 29, 2017, granted, now 11,725,664.
Prior Publication US 2023/0340958 A1, Oct. 26, 2023
Int. Cl. F04C 29/06 (2006.01); A61B 18/14 (2006.01); A61M 1/00 (2006.01); F04C 18/02 (2006.01); F04C 18/12 (2006.01); F04C 28/08 (2006.01); F04C 29/00 (2006.01); A61B 18/00 (2006.01); A61B 18/12 (2006.01); A61B 18/16 (2006.01)
CPC F04C 29/06 (2013.01) [A61B 18/14 (2013.01); A61M 1/80 (2021.05); F04C 18/0207 (2013.01); F04C 18/0215 (2013.01); F04C 18/12 (2013.01); F04C 28/08 (2013.01); F04C 29/0085 (2013.01); A61B 2018/00595 (2013.01); A61B 2018/00601 (2013.01); A61B 18/1206 (2013.01); A61B 18/16 (2013.01); A61B 2218/008 (2013.01); A61M 1/73 (2021.05); A61M 2202/02 (2013.01); A61M 2205/103 (2013.01); A61M 2205/42 (2013.01); A61M 2205/75 (2013.01); F04C 29/0071 (2013.01); F04C 2240/40 (2013.01); F04C 2270/051 (2013.01); F04C 2270/125 (2013.01); F04C 2270/135 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A smoke evacuation assembly comprising:
a filter;
a dual scroll pump having a sealed positive displacement airflow path, the dual scroll pump comprising:
a first scroll pump comprising a moving scroll and a stator scroll, the moving scroll being configured to rotate in a first direction; and
a second scroll pump comprising a moving scroll and a stator scroll, the moving scroll being configured to rotate in a second direction that is opposite to the first direction,
wherein the dual scroll pump has a first operating pressure and a second operating pressure, and wherein a first flow rate of a gas flowing through the sealed positive displacement airflow path at the first operating pressure is the same as a second flow rate of a gas flowing through the sealed positive displacement airflow path at the second operating pressure, and wherein a difference in pressure between the first operating pressure and the second operating pressure is equal to or greater than 1.5 psig; and
a motor engaging the dual scroll pump to rotate the moving scrolls.