Surgical fluid management
First Claim
Patent Images
1. A fluid flow device, comprising:
- a housing configured to releasably mate with a surgical control unit for controlling fluid flow during a surgical procedure;
a fluid path within the housing;
first and second ports which communicate a fluid pressure within the fluid path to at lest one pressure for measuring fluid pressure within the path;
a restrictor for restricting fluid flow at a restriction location along the fluid path, the first port being located upstream of the restriction location and the second port being located downstream of the restriction location; and
a fluid pump within the housing.
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Abstract
A fluid flow device includes a housing configured to releasably mate with a surgical control unit for controlling fluid flow during a surgical procedure. First and second ports measure fluid pressure within a fluid path provided within the housing. The fluid flow device includes a restrictor for restricting fluid flow at a restriction location along the fluid path. The first port is located upstream of the restriction location and the second port is located downstream of the restriction location. A fluid pump is provided within the housing.
67 Citations
25 Claims
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1. A fluid flow device, comprising:
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a housing configured to releasably mate with a surgical control unit for controlling fluid flow during a surgical procedure; a fluid path within the housing; first and second ports which communicate a fluid pressure within the fluid path to at lest one pressure for measuring fluid pressure within the path; a restrictor for restricting fluid flow at a restriction location along the fluid path, the first port being located upstream of the restriction location and the second port being located downstream of the restriction location; and a fluid pump within the housing. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. An apparatus for controlling fluid pressure within a body cavity comprising:
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means for pumping fluid to the body cavity through a flow restrictor located between the body cavity and a fluid pump; means for measuring a pressure change across the flow restrictor; means for calculating the fluid pressure within the body cavity based on the measured pressure change; and means for controlling the fluid flow to the body cavity based on the calculated fluid pressure.
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22. A fluid flow device, comprising:
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a housing including at least one protrusion configured to releasably mate with a surgical control unit for controlling fluid flow during a surgical procedure, the at least one protrusion configured to matingly engage a guide track of the surgical control unit; a fluid path within the housing; first and second ports which communicate a fluid pressure within the fluid path to at lest one pressure sensor for measuring fluid pressure within the path; a restrictor for restricting fluid flow at a restriction location along the fluid path, the first port being located upstream of the restriction location and the second port being located downstream of the restriction location; and a fluid pump within the housing. - View Dependent Claims (23, 24)
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25. An apparatus for controlling fluid pressure within a body cavity comprising:
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a control unit; a cassette having at least one projection for engaging a guide track of the control unit; a pump within the cassette for pumping fluid to the body cavity through a flow restrictor located in the cassette; a sensor located in the control unit which measures a pressure change across the flow restrictor, wherein the control unit is operable to calculate the fluid pressure within the body cavity based on the measured pressure change, and wherein the control unit controls the fluid flow to the body cavity based on the calculated fluid pressure.
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Specification