System for surgical insufflation and gas recirculation
First Claim
1. A system for insufflation and recirculation of pressurized fluid in a surgical procedure, the system comprising:
- a control unit having;
a) a fluid pump adapted and configured to circulate pressurized fluid during the surgical procedure;
b) a supply conduit in fluid communication with an output of the fluid pump for delivering pressurized fluid to an output port of the control unit;
c) a return conduit in fluid communication with an input of the fluid pump for returning fluid from an input port of the control unit;
d) a valve assembly in fluid communication with the supply conduit and the return conduit, the valve assembly remaining in a closed state in the absence of a control signal corresponding to a change in abdominal pressure and being adapted and configured to respond to a sensed overpressure condition by opening an internal flow path, thereby fluidly connecting the supply conduit and the return conduit with one another;
e) a pressure sensing conduit in fluid communication with the valve assembly for communicating a pressure value thereto;
f) a safety pressure release valve in fluid communication with the pressure sensing conduit for releasing pressurized fluid into the atmosphere in addition to the opening of the internal flow path of the valve assembly; and
a surgical insufflator configured to receive, through an input port thereof, a supply of insufflation gas from a source, wherein an output port of the insufflator is in fluid communication with a patient'"'"'s abdominal cavity, and the insufflator is further configured to sense pressure within the abdominal cavity by way of the pressure sensing conduit and provide insufflation gas to the abdominal cavity through the pressure sensing conduit.
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Accused Products
Abstract
A system for insufflation and recirculation of insufflation fluid in a surgical procedure. The system includes a control unit having a fluid pump, a supply conduit, a return fluid conduit and a pressure-controlled valve. The fluid pump is adapted and configured to circulate insufflation fluid through the system. The supply conduit is in fluid communication with an output of the fluid pump and configured and adapted for delivering pressurized insufflation fluid to an output port of the control unit. The return conduit is in fluid communication with an input of the fluid pump for delivering insufflation fluid to the fluid pump and is configured and adapted for returning insufflation fluid from an input port of the control unit. The pressure-controlled valve is in fluid communication with the supply conduit and the return conduit, and is adapted and configured to receive a control signal and respond to the control signal by opening, thereby fluidly connecting the supply conduit and the return conduit with one another.
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Citations
10 Claims
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1. A system for insufflation and recirculation of pressurized fluid in a surgical procedure, the system comprising:
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a control unit having; a) a fluid pump adapted and configured to circulate pressurized fluid during the surgical procedure; b) a supply conduit in fluid communication with an output of the fluid pump for delivering pressurized fluid to an output port of the control unit; c) a return conduit in fluid communication with an input of the fluid pump for returning fluid from an input port of the control unit; d) a valve assembly in fluid communication with the supply conduit and the return conduit, the valve assembly remaining in a closed state in the absence of a control signal corresponding to a change in abdominal pressure and being adapted and configured to respond to a sensed overpressure condition by opening an internal flow path, thereby fluidly connecting the supply conduit and the return conduit with one another; e) a pressure sensing conduit in fluid communication with the valve assembly for communicating a pressure value thereto; f) a safety pressure release valve in fluid communication with the pressure sensing conduit for releasing pressurized fluid into the atmosphere in addition to the opening of the internal flow path of the valve assembly; and a surgical insufflator configured to receive, through an input port thereof, a supply of insufflation gas from a source, wherein an output port of the insufflator is in fluid communication with a patient'"'"'s abdominal cavity, and the insufflator is further configured to sense pressure within the abdominal cavity by way of the pressure sensing conduit and provide insufflation gas to the abdominal cavity through the pressure sensing conduit. - View Dependent Claims (2, 3, 4, 5)
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6. A system for insufflation and recirculation of pressurized fluid in a surgical procedure, the system comprising:
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a control unit having; a) a fluid pump adapted and configured to circulate pressurized fluid and maintain a fluid seal within a trocar coupled to the control unit; b) a supply conduit in fluid communication with an output of the fluid pump and configured and adapted for delivering pressurized fluid to an output port of the control unit; c) a return conduit in fluid communication with an input of the fluid pump for returning fluid from an input port of the control unit; d) a valve assembly in fluid communication with the supply conduit and the return conduit, the valve assembly remaining in a closed state in the absence of a control signal corresponding to a change in abdominal pressure and being adapted and configured to respond to a sensed overpressure condition by opening an internal flow path, thereby fluidly connecting the supply conduit and the return conduit with one another through a bypass conduit, to reduce the supply of fluid to the fluid seal within the trocar; e) a pressure sensing conduit in fluid communication with the valve assembly to communicate a pressure value thereto; f) a safety pressure release valve in fluid communication with the pressure sense conduit for releasing pressurized fluid into the atmosphere in addition to the opening of the internal flow path of the valve assembly; and a surgical insufflator configured to receive, through an input port thereof, a supply of insufflation gas from a source, wherein an output port of the insufflator is in fluid communication with a patient'"'"'s abdominal cavity by way of the trocar, and the insufflator is further configured to sense pressure within the abdominal cavity by way of the pressure sensing conduit and provide insufflation gas to the abdominal cavity through the pressure sense conduit. - View Dependent Claims (7, 8, 9, 10)
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Specification