Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Patent
1994-10-03
1996-05-28
Hirsch, Paul J.
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
604119, A61M 100
Patent
active
055206514
ABSTRACT:
An self-releasing suction and irrigation apparatus for providing surgical suction and irrigation to a body cavity such that, upon obstruction of the suction port by body tissue, the resulting increased vacuum pressure is automatically vented, thereby releasing the suction hold on the obstructing tissue. In a preferred embodiment, the suction apparatus has a soft, flexible tip made from an elastomeric material that is releasably attached to a rigid tube. The flexible tip is designed to deform under a predetermined threshold vacuum pressure. A vent through the wall of the deformable portion of the tip is substantially closed during normal operating pressures, but opens in response to the deformation of the tip at the threshold vacuum pressure, thereby venting the interior of the tip and reducing the vacuum pressure. Rounded lips form sharp channels at the suction port to maximize the flow of fluids into the port while minimizing the likelihood of tissue obstruction.
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Gentelia John
Sutcu Maz
Conmed Corporation
Hirsch Paul J.
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