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US 2010/0160900 A1Published application
Multi-function Valve For Surgical Instrument
AssigneeLipocosm, LLC
InventorsRoger K. Khouri, Murat Kuru
Life of this patent
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AssigneeLipocosm, LLC
InventorsRoger K. Khouri, Murat Kuru
Estimating the term…
A closed system for harvesting fat through liposuction, concentrating the aspirate so obtained, and then re-injecting the concentrated fat into a patient comprises as its main components a low pressure cannula having between about 7 to 12 side holes of about 1-2 mm by 2.0 to 4.0 mm, a spring loaded syringe holder with a constant force or coiled ribbon spring to apply a substantially constant pressure over the full excursion of the plunger, and a preferably flexible collection bag which is also preferably graduated, cylindrical over most of its body and funnel shaped at its bottom, all of which are connected through flexible tubings to a multi-port valve. The multi-port valve has two flutter/duck bill valves which restrict the fluid flow to a one way direction which effectively allows the syringe to be used to pump fat out of a patient and into a collection bag in a continuous manner. After the bags are centrifuged to concentrate the fat, the excess fluids are separated and the valve is re-connected to permit the syringe pump to reverse fluid flow to graft the concentrated fat back into the patient.
In a system for low pressure harvesting of aspirate from a patient comprising a multi-port liposuction cannula, a constant low pressure suction device, and a repository for receiving the aspirate, the improvement comprising a multi-port valve having a separate port for connection to a separate one of each of the foregoing whereby activation of the suction device harvests aspirate from the patient and through the cannula, through the valve and into the repository.
2-9. (canceled)
The multi-port valve of claim 30 wherein at least one of said one way internal valves comprises a duck bill valve.
The multi-port valve of claim 30 wherein at least one of said one way internal valves comprise a flutter valve.
The multi-port valve of claim 30 wherein said multi-port valve has four ports, and at least one of said ports may be capped.
14-24. (canceled)
A multi-port valve for surgical use, the valve having at least one internal duck bill or flutter valve associated with at least one port to render that port a one way passage.
The multi-port valve of claim 31 wherein at least two ports have an associated internal duck bill or flutter valve, and said internal duck bill or flutter valves are oriented to permit one way flow through both as fluid enters and leaves the multi-port valve.
The multi-port valve of claim 31 wherein said multi-port valve includes 4 ports, and wherein at least one of said ports is adapted to be closed to prohibit fluid flow therethrough.
A multi-port valve for surgical use, said multi-port valve having at least three ports arranged at ninety degrees about a central core, at least two of said ports having a flutter valve with inner sleeve mounted therein.
Dependencies are inferred from the claim text.