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US 5,356,386 AGranted
Apparatus for locating body cavities
AssigneeUresil Corporation
InventorsEdward M. Goldberg, Lev Melinyshyn, Michael Jaron, Jeffrey M. Stupar
Life of this patent
Estimating the term…
Abstract
An apparatus for locating a body cavity having a fluctuating fluid pressure by signaling the fluctuating pressure when the cavity is entered and then transporting fluid either into or out of the cavity.
Claims15
An apparatus for locating a body cavity having a fluctuating fluid pressure and transporting fluid either into or out of the cavity comprising:
- a conduit comprising a flexible catheter having a spring covered by an elastomeric coating for entering the cavity;
- means, in communication with said conduit, for producing a pulsating indication corresponding to the fluctuation of the fluid pressure in the cavity when said conduit enters the body cavity;
- and
- means, in communication with said conduit, for transporting fluid either into or out of the cavity.
1 more element
An apparatus for locating a body cavity having a fluctuating fluid pressure and transporting fluid either in or out of the cavity comprising:
- a conduit;
- a housing having an inlet chamber and a discharge chamber, said housing supporting said conduit in sealed fluid communication with said inlet chamber;
- an inlet port in said housing having inlet port sealing means for reversibly receiving a trocar and enabling at least a portion of a trocar to pass through said inlet chamber and said conduit, said inlet port sealing means being adapted for sealing said chamber both in the absence of a trocar and upon insertion and withdrawal of a trocar,
- anti-reflux valve means mounted in said housing, coupling said inlet chamber with said discharge chamber, for permitting fluid entering said inlet chamber to pass into said discharge chamber while preventing fluid from flowing from said discharge chamber into said inlet chamber and
- means for producing a pulsating visual indication corresponding to the fluctuating fluid pressure in the body cavity upon entry of the conduit into a body cavity.
2 more elements
Dependencies are inferred from the claim text.