Dialysis apparatus
AssigneeNational Medical Care, Inc.
InventorsRichard A. Friedrich, Robert L. MacNeill
Life of this patent
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Abstract
A dialysis module for use with a variety of single pass or single pass-recirculating artificial kidney dialyzers as desired. The apparatus has quick disconnects to allow attachment of a single pass kidney dialyzer or shunt tube so that a single housing can be used to provide two entirely different modes of operation as selected. A clear canister forms a part of the dialysis flow path in both modes of operation to enable rapid detection of blood leaks in either mode of operation.
Claims15
A dialysis apparatus for selective use with single pass or single pass-recirculating artificial kidney dialyzers to provide for dialysate flow, said apparatus comprising,
- a housing, a dialysate canister open to the atmosphere and carrying a dialysate overflow means for limiting a level of dialysate in said canister,
- a dialysate flow conduit having a first inlet for connection to a source of fresh dialysate and an outlet opening for passing dialysate to said canister,
- a mounting opening in said canister for detachably mechanically mounting an artificial kidney dialyzer therein,
- recirculating pump means having a conduit interconnecting one portion of said canister with said mounting opening for permitting dialysate recirculation therethrough,
- a first shunt dialysate conduit connected to said flow conduit at a first point intermediate said canister opening and said first inlet,
- said shunt dialysate conduit terminating at a first shunt connector,
- a second shunt connector spaced from said first shunt connector,
- a second shunt dialysis conduit leading from said second shunt connector to a second point for passing dialysate to said canister,
- said second shunt dialysate conduit having a negative pressure pump and means for adjusting the value of negative pressure produced by said pump.
A dialysis apparatus for selective use with single pass or single pass-recirculating artificial kidney dialyzers to provide for dialysate flow,
- said apparatus comprising,
- a housing,
- a dialysate canister open to the atmosphere and carrying a dialysate overflow means for limiting a level of dialysate in said canister,
- a dialysate flow conduit having a first inlet for connection to a source of fresh dialysate and an outlet opening for passing dialysate to said canister,
- a mounting opening in said canister for detachably mechanically mounting an artificial kidney dialyzer therein,
- recirculating pump means having a conduit interconnecting one portion of said canister with a kidney dialyzer for permitting dialysate recirculation therethrough whereby said pump means can pump a minor amount of fresh dialysate from said outlet opening and a major amount of dialysate directly from said canister,
- a first shunt dialysate conduit connected to said flow conduit at a first point intermediate said canister opening and said first inlet,
- said shunt dialysate conduit terminating at a first shunt connector,
- a second shunt connector spaced from the first shunt connector,
- a second shunt dialysate conduit leading from said second shunt connector to a drain with said second shunt dialysate conduit having a negative pressure pump and means for adjusting the value of negative pressure produced by said pump.
Dependencies are inferred from the claim text.