System and Method to Vent Gas from a Body Cavity
AssigneeHemostasis, LLC
InventorsDuane Earl Lloyd, Keith A. Roberts
Life of this patent
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Abstract
One aspect of the invention is a method to vent gas from a body cavity during an endoscopic procedure. A body cavity is in fluid communication with an exhaust gas inlet of a vacuum break device. The vacuum break device has a chamber in fluid communication with both the inlet and an outlet. The chamber may comprise one or more openings in fluid communication with the atmosphere. A conduit in fluid communication with the exhaust gas outlet may be connected directly or indirectly to a suction source. The suction source may be activated.
Claims31
A method to vent gas from a body cavity during an endoscopic procedure, comprising:
- connecting a first conduit in fluid communication, either directly or indirectly, with the body cavity to an exhaust gas inlet of a vacuum break device, the vacuum break device comprising:
- a chamber,
- the chamber being both in fluid communication with the exhaust gas inlet and in fluid communication with an exhaust gas outlet,
- a first valve,
- wherein the chamber further comprises at least one opening in fluid communication with both the chamber and the atmospheric air where the endoscopic procedure is taking place and wherein the first valve is operable to at least partially obstruct the at least one opening resulting in an increase in gas flow rate within the first conduit due to increased vacuum pressure within the chamber;
- and
- connecting a second conduit in fluid communication with the exhaust gas outlet directly or indirectly to a suction source;
- and
- activating the suction source.
A system for venting gas from a body cavity during an endoscopic procedure, comprising:
- a trocar having an outlet port in fluid communication with the body cavity;
- a vacuum break device, comprising:
- an exhaust gas inlet operable to receive gas that has traveled at least through the outlet port of the trocar;
- a chamber,
- the chamber being both in fluid communication with the exhaust gas inlet and in fluid communication with an exhaust gas outlet,
- a first valve,
- wherein the chamber further comprises at least one opening in fluid communication with both the chamber and the atmospheric air where the endoscopic procedure is taking place and wherein the first valve is operable to at least partially obstruct the at least one opening resulting in an increase in gas flow rate within the first conduit due to increased vacuum pressure within the chamber;
- and
- a suction source coupled directly or indirectly to the exhaust gas outlet and operable to draw gas from the chamber.
An vacuum break device for use in venting gas from a body cavity during an endoscopic procedure, comprising:
- an exhaust gas inlet operable to be connected to a first fluid conduit in fluid communication with the body cavity;
- an exhaust gas outlet operable to be connected to a second fluid conduit in fluid communication with a suction source.
- a chamber,
- the chamber being both in fluid communication with the exhaust gas inlet and in fluid communication with an exhaust gas outlet,
- a first valve,
- wherein the chamber further comprises at least one opening in fluid communication with both the chamber and the atmospheric air where the endoscopic procedure is taking place and wherein the first valve is operable to at least partially obstruct the at least one opening resulting in an increase in gas flow rate within the first conduit due to increased vacuum pressure within the chamber.
Dependencies are inferred from the claim text.