Smoke evacuation system
First Claim
1. A system for removing vapors and particles from a pressurized surgical cavity, the system comprising:
- a fluid pathway including an intake end and a return end, both ends being in fluid communication with a pressurized surgical site;
a flow generating device in fluid communication with the fluid pathway and located between the intake end and the return end;
a filter in fluid communication with the fluid pathway and located between the intake end and the return end, wherein the flow generating device generates a flow rate through the system of approximately 0.2 to approximately 4.5 liters per minute for a fluid comprising insufflation gases.
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Accused Products
Abstract
A smoke evacuating system for use during surgical procedures, particularly minimally invasive procedures involving the use of a laser or cautery at a surgical site having an associated higher than ambient pressure, wherein the system includes a filter with a site side and an outlet side and a fluid conduit extending between the surgical site and the filter. The filter includes a filter media and a housing substantially surrounding the filter media with a space between the filter media and the housing to collect condensed vapor. The filter exhibits low resistance or a low pressure drop and resists fluid flow, whereby the higher than ambient pressure is not substantially diminished and generates a fluid flow in the fluid flow path tending to carry smoke to and through the filter.
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Citations
17 Claims
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1. A system for removing vapors and particles from a pressurized surgical cavity, the system comprising:
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a fluid pathway including an intake end and a return end, both ends being in fluid communication with a pressurized surgical site;
a flow generating device in fluid communication with the fluid pathway and located between the intake end and the return end;
a filter in fluid communication with the fluid pathway and located between the intake end and the return end, wherein the flow generating device generates a flow rate through the system of approximately 0.2 to approximately 4.5 liters per minute for a fluid comprising insufflation gases. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification