Laparoscopic insufflator
DCFirst Claim
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1. An insufflation system for use with laparoscopic surgical equipment comprising:
- a delivery assembly for delivering insufflating gas from a pressurized source of insufflating gas to at least one gas delivery path and a separate sensing line that are connectable to a laparoscopic surgical equipment that is insertable into a peritoneal cavity;
a separate sensing assembly connected to said separate sensing line; and
a controller coupled to said delivery assembly and said separate sensing assembly, wherein said controller monitors said separate sensing assembly to confirm absence of leakage in said separate sensing line and unobstructed connection of said separate sensing line to said peritoneal cavity, and further wherein said controller provides for continuous delivery of insufflating gas via said delivery assembly upon said confirming and otherwise provides for non-continuous delivery of insufflating gas via said delivery assembly.
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Abstract
A system, apparatus, and method for supplying continuous and intermittent insufflating gas flow are disclosed. The system, apparatus, and method is capable of providing a continuous flow (100% duty cycle) of insufflation gas, while assuring the continuity of the delivery lines, and the pressure sense lines. The disclosure describes a delivery assembly, an internal sensing assembly, an internal sense line, a pressure assembly, and a controller.
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Citations
50 Claims
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1. An insufflation system for use with laparoscopic surgical equipment comprising:
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a delivery assembly for delivering insufflating gas from a pressurized source of insufflating gas to at least one gas delivery path and a separate sensing line that are connectable to a laparoscopic surgical equipment that is insertable into a peritoneal cavity;
a separate sensing assembly connected to said separate sensing line; and
a controller coupled to said delivery assembly and said separate sensing assembly, wherein said controller monitors said separate sensing assembly to confirm absence of leakage in said separate sensing line and unobstructed connection of said separate sensing line to said peritoneal cavity, and further wherein said controller provides for continuous delivery of insufflating gas via said delivery assembly upon said confirming and otherwise provides for non-continuous delivery of insufflating gas via said delivery assembly. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An insufflation apparatus, comprising:
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a plurality of delivery channels that define a gaseous flow path from a pressurized source of insufflating gas to at least one trocar assembly and a separate sensing line, wherein said trocar assembly and said separate sensing line are insertable into an internal body cavity;
a plurality of pressure regulating valves interposed between said pressurized source of insufflating gas and said trocar assembly;
a separate sensing assembly connected to said separate sensing line for monitoring internal body pressure and assuring continuity from said internal body cavity through said separate sensing line, and a controller coupled to said delivery channels, said pressure regulating valves, and said separate sensing assembly to control insufflation pressure and gas flow rate, wherein said controller provides for continuous delivery of insufflating gas upon absence of leakage in said separate sensing line and unobstructed connection of said separate sensing line to said internal body cavity and otherwise provides for non-continuous delivery of insufflating gas. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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21. An insufflation apparatus comprising:
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a plurality of delivery channels that define a gaseous flow path from a pressurized source of insulating gas to at least one trocar assembly and a separate sensing line, wherein said trocar assembly and said separate sensing line are insertable into an internal body cavity;
a plurality of pressure regulating valves interposed between said pressurized source of insulating gas and said trocar assembly;
a separate sensing assembly connected to said separate sensing line for monitoring internal body pressure and assuring continuity from said internal body cavity through said separate sensing line;
a controller coupled to said delivery channels, said pressure regulating valves, and said separate sensing assembly to control insufflation pressure and gas flow rate; and
a differential flow rate sensor interposed between said pressurized source of insufflating gas and said internal assembly to monitor said gas flow rate in said delivery channels.
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22. An insufflation device, comprising:
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means for delivering insufflating gas from a pressurized source to at least one delivery path coupled to a separate sensing line that are insertable into a peritoneal cavity;
means for monitoring peritoneal pressure and sensing continuity from said peritoneal cavity through said separate sensing line; and
means for controlling insulation pressure and gas flow rate.
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23. A method comprising the steps of:
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providing an insufflation system capable of providing a first periodic flow and then a continuous flow of insufflating gas into a peritoneal cavity through a delivery line and a separate sensing line to achieve pneumoperitoneum;
sensing a difference between a pressure within said peritoneal cavity and a pressure of said insufflating gas continuously by comparing the pressures of said delivery line and said sensing line.
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24. A process for achieving pneumoperitoneum comprising the steps of:
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inserting a delivery line and a separate sensing line into an internal body cavity;
infusing an insufflating gas through said delivery line and said separate sensing line to insufflate said internal body cavity;
measuring a pressure of said insufflating gas through said delivery line and said separate sensing line;
comparing said pressure of said insufflating gas through said delivery line and said separate sensing line; and
thencontrolling gas infusion rates into said internal body cavity and pressure in said internal body cavity in response to said comparing said pressure of said insufflating gas.
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25. An insulation system, comprising:
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a delivery assembly for delivering insufflating gas from a pressurized source to at least one gas delivery path and a separate sensing line that are insertable into a peritoneal cavity;
an internal sensing assembly connected to said separate sensing line through a first control valve; and
a controller coupled to said delivery assembly and said first control valve to control insufflation pressure and gas flow rates, wherein said controller provides for continuous delivery of insufflating gas upon absence of leakage in said separate sensing line and unobstructed connection of said separate sensing line to said peritoneal cavity and otherwise provides for non-continuous delivery of insufflating gas. - View Dependent Claims (26, 27, 28, 29, 30)
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31. An insufflation system, comprising:
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a delivery assembly for delivering insufflating gas from a pressurized source to at least one gas delivery path and a separate sensing line that are insertable into a peritoneal cavity;
an internal sensing assembly connected to said separate sensing line through a first control valve;
a controller coupled to said delivery assembly and said first control valve to control insufflation pressure and gas flow rates; and
wherein said internal sensing assembly includes an orifice interposed within a feedback path that connects said gas delivery path to said separate sensing line. - View Dependent Claims (32)
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33. An insufflation system for use with laparoscopic instruments having gas passages in a range of approximately 0.065 inches to 0.123 inches, the insufflation system comprising:
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a delivery assembly for delivering insufflating gas from a pressurized source of insufflating gas to a plurality of gas delivery paths and a separate sensing line that are insertable into a peritoneal cavity, and wherein said plurality of gas delivery paths have a total flow of approximately at least 40 liters per minute;
a separate sensing assembly connected to said separate sensing line; and
a controller coupled to said delivery assembly and said separate sensing assembly, wherein said controller monitors said separate sensing assembly and provides for delivery of insufflating gas via said delivery assembly up to at least approximately 40 liters per minute, wherein said controller provides for continuous delivery of insufflating gas upon absence of leakage in said separate sensing line and unobstructed connection of said separate sensing line to said peritoneal cavity and otherwise provides for non-continuous delivery of insufflating gas.
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34. An insufflation apparatus, comprising:
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a plurality of delivery channels that define a gaseous flow path from a pressurized source of insufflating gas to at least one trocar assembly and a separate sensing line, wherein said trocar assembly and said separate sensing line are insertable into an internal body cavity;
a plurality of pressure regulating valves interposed between said pressurized source of insufflating gas and said trocar assembly;
a separate sensing assembly connected to said separate sensing line for monitoring internal body pressure and assuring continuity from said internal body cavity through said separate sensing line, and a controller coupled to said delivery channels, said pressure regulating valves, and said separate sensing assembly to control insufflation pressure and gas flow rate, wherein said controller confirms absence of leakage in said separate sensing line and unobstructed connection of said separate sensing line to said internal body cavity. - View Dependent Claims (35, 36, 37, 38, 39, 40, 41)
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42. An insufflation system, comprising:
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a delivery assembly for delivering insufflating gas from a pressurized source to at least one gas delivery path and a separate sensing line that are insertable into a peritoneal cavity;
an internal sensing assembly connected to said separate sensing line through a first control valve; and
a controller coupled to said delivery assembly and said first control valve to control insufflation pressure and gas flow rates, wherein said controller confirms absence of leakage in said separate sensing line and unobstructed connection of said separate sensing line to said peritoneal cavity. - View Dependent Claims (43, 44, 45, 46, 47, 48, 49)
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50. An insufflation system for use with laparoscopic instruments having gas passages in a range of approximately 0.065 inches to 0.123 inches, the insufflation system comprising:
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a delivery assembly for delivering insufflating gas from a pressurized source of insufflating gas to a plurality of gas delivery paths and a separate sensing line that are insertable into a peritoneal cavity, and wherein said plurality of gas delivery paths have a total flow of approximately at least 40 liters per minute;
a separate sensing assembly connected to said separate sensing line; and
a controller coupled to said delivery assembly and said separate sensing assembly, wherein said controller monitors said separate sensing assembly and provides for delivery of insufflating gas via said delivery assembly up to at least approximately 40 liters per minute, wherein said controller confirms absence of leakage in said separate sensing line and unobstructed connection of said separate sensing line to said peritoneal cavity.
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Specification