US 10,946,130 B2 · Apparatus for performing peritoneal ultrafiltration

Abstract

An apparatus for ultrafiltration of a patient being overhydrated due to congestive heart failure. The apparatus comprises a dilution syringe for removal of a portion of peritoneal fluid from the peritoneal cavity. A glucose bag comprises glucose concentrate at a concentration of 30%. A small amount of glucose concentrate is mixed with the dilution fluid in the dilution syringe in order to dilute the glucose concentrate to below 3% concentration. Then, the mixture is filled into the peritoneal cavity from the dilution syringe in order to replenish the glucose in the peritoneal cavity for maintaining a substantially constant glucose concentration in the peritoneal cavity. In addition, peritoneal fluid is intermittently removed from the peritoneal cavity for counteracting increased intraperitoneal fluid volume and increased intraperitoneal pressure due to ultrafiltration. A UF bag is arranged for receiving such surplus peritoneal fluid. A glucose syringe may be arranged for metering the glucose concentrate.

Claims12

Dependent claims

An apparatus for performing ultrafiltration of a patient having a peritoneal fluid installed in a peritoneal cavity, comprising:

a patient line comprising a patient connector for connection to a peritoneal catheter connector for access to the peritoneal fluid of the peritoneal cavity of the patient;
a dilution receptacle connected to the patient line for removal and return of a dilution volume of the peritoneal fluid from and to the peritoneal cavity, wherein the dilution receptacle is a syringe having a retractable piston;
an ultrafiltration receptacle for receipt of an ultrafiltration volume of the peritoneal fluid;
a glucose receptacle configured to contain glucose concentrate to be added to the dilution volume;
a first valve arranged for connection of said syringe with said patient tube in a first position, and for connection of said syringe with a second valve in a second position;
said second valve being arranged for connection of said first valve to the ultrafiltration receptacle in a first position, and for connection of said first valve to said glucose receptacle in a second position;
a metering device configured to meter an amount of glucose concentrate which is positively proportional to said ultrafiltration volume removed from the patient and is added to said dilution volume at each cycle;
whereby glucose is replenished intermittently to said peritoneal fluid of said peritoneal cavity.

5 more elements

An apparatus for performing ultrafiltration of a patient having a peritoneal fluid installed in a peritoneal cavity, comprising:

a patient line comprising a patient connector for connection to a peritoneal catheter connector for access to said peritoneal fluid of the peritoneal cavity of the patient;
a dilution receptacle connected to said patient line for removal and return of a dilution volume of the peritoneal fluid from and to the peritoneal cavity,
an ultrafiltration receptacle for receipt of an ultrafiltration volume of the peritoneal fluid;
a glucose receptacle configured to contain glucose concentrate to be added to the dilution volume;
a valve arrangement for selectable connection of said dilution receptacle with said glucose receptacle and with said patient tube;
wherein
an amount of glucose concentrate which is positively proportional to said ultrafiltration volume removed from the patient is added to said dilution volume;
whereby glucose is replenished intermittently to said peritoneal fluid of said peritoneal cavity.

5 more elements

Dependencies are inferred from the claim text.

Apparatus for performing peritoneal ultrafiltration

Life of this patent

Apparatus for performing peritoneal ultrafiltration

Life of this patent

Abstract

Claims12