Artificial kidney set with electronic key

• US 6,468,241 B1
• Filed: 10/26/2000
• Issued: 10/22/2002
• Est. Priority Date: 10/26/2000
• Status: Expired due to Term

• Current Assignee: Gambro Lundia AB (Baxter International Inc.)
• Original Assignee: CHF Solutions, Inc.
• Inventors: Gelfand, Mark, OʼMahony, John J.
• Primary Examiner(s): Michalsky, Gerald A.
• Application Number:
  US09/696,642
• Time in Patent Office: 726 Days
• Field of Search: 210/646, 604/6.09, 604/6.11
• US Class Current: 604/6.09
• CPC Class Codes: A61M 1/154 with sensing means or components thereof
• CPC Class Codes: A61M 1/3401 Cassettes therefor
• CPC Class Codes: A61M 1/3621 Extra-corporeal blood circuits single-needle circuits A61M1/30
• CPC Class Codes: A61M 1/36224 with sensing means or components thereof
• CPC Class Codes: A61M 1/36225 with blood pumping means or components thereof
• CPC Class Codes: A61M 1/362264 the filter being a blood filter
• CPC Class Codes: A61M 2205/12 with interchangeable cassettes forming partially or totally the fluid circuit
• CPC Class Codes: A61M 2205/52 with memories providing a history of measured variating parameters of apparatus or patient
• CPC Class Codes: A61M 2205/60 with identification means

Abstract

An integrated disposable set for dialysis or ultrafiltration treatment of blood is disclosed that includes a memory “key” chip. The key contains information relating to the set, including calibration for sensors, model and date of manufacture and a proprietary secret code to prevent unauthorized duplication of a circuit. The key is activated when treatment of a patient begins to prevent reuse of the set and a delay in use of the set that is too long. Patient data and operational information can be stored in the key during treatment. The key can be returned to the manufacturer or entered into hospital database for analysis. The key is preferably an EEPROM chip that can be embedded in an integral circuit sensor or a separate plug in device, such as a code card.

Claims

1. A disposable cartridge for filtration of blood comprising:

a first passage through which flows blood from and to a patient;

a second passage through which flows filtrates removed from the blood;

at least one blood pressure sensor; and

a programmable memory device containing information regarding the disposable cartridge,

wherein the information contained in the memory device relates to the manufacture of the disposable cartridge, and

wherein the memory device information is selected from the group including serial number, model number, hardware revision and software revision of the disposable cartridge.

2. A disposable set for filtration of blood comprising:

a first passage through which flows blood from and to a patient;

a second passage through which flows filtrates removed from the blood;

at least one blood pressure sensor; and

a programmable memory device containing information regarding the disposable set,

wherein the memory device receives information regarding a patient being treated using the disposable set, and

wherein the information regarding the treatment of a patient is selected from the group including the date and time when the treatment started, the duration of the treatment, treatment modality, alarms, user actions, user settings including blood flow and fluid removal rate, sensor readings, and amount of fluid removed per treatment.

3. A disposable cartridge for filtration of blood comprising:

a first passage through which flows blood from and to a patient;

a second passage through which flows filtrates removed from the blood;

at least one blood pressure sensor; and

a programmable memory device containing information regarding the disposable cartridge,

wherein the memory device receives information regarding a patient being treated using the disposable cartridge, and

wherein the information regarding the treatment of a patient is selected from the group including the date and time when the disposable cartridge was mounted on the pump console, the date and time when the disposable cartridge was dismounted from the pump console, and battery operation.

4. A disposable cartridge for filtration of blood comprising:

a first passage through which flows blood from and to a patient;

a second passage through which flows filtrates removed from the blood;

at least one blood pressure sensor; and

a programmable memory device containing information regarding the disposable cartridge,

wherein the information contained in the memory device relates to the operation of the disposable cartridge in connection with the treatment of a patient, and

wherein information about the patient being treated using the disposable cartridge stored in the memory device is selected from the group including patient age, sex and weight, diagnosis, medication administered before and during treatment, and blood pressure and blood gauges.

5. A disposable cartridge for filtration of blood comprising:

a first passage through which flows blood from and to a patient;

a second passage through which flows filtrates removed from the blood;

at least one blood pressure sensor; and

a programmable memory device containing information regarding the disposable cartridge,

wherein the memory device includes an EEPROM and is embedded in a housing of a sensor used with the disposable cartridge.

6. A disposable set for filtration of blood comprising:

a first passage through which flows blood from and to a patient;

a second passage through which flows filtrates removed from the blood;

at least one blood pressure sensor; and

a programmable memory device containing information regarding the disposable set,

wherein the disposable set is detachably mounted on a console including at least one pump for pumping blood and a microprocessor for controlling the operation of the disposable set in combination with the console, and

wherein the memory device is a key code card that is plugged into a control panel of the console.

7. A blood filtration system comprising:

a filter;

a disposable set comprising;

a first passage through which flows blood to and from a patient,

a second passage through which flows filtrates removed from the blood by the blood filter;

at least one blood pressure sensor; and

a memory device containing information regarding the disposable set; and

a console on which the disposable set is detachably mounted for pumping the blood and the filtrates, the console including a microprocessor for controlling the operation of the disposable set in combination with the console,

wherein the memory device further includes information regarding a patient being treated using the disposable set, and

wherein the information regarding the treatment of a patient is selected from the group including the date and time when the treatment started, the duration of the treatment, treatment modality, alarms, user actions, user settings including blood flow and fluid removal rate, sensor readings, and amount of fluid removed per treatment.

8. A blood filtration system comprising:

a filter;

a disposable set comprising;

a first passage through which flows blood to and from a patient,

a second passage through which flows filtrates removed from the blood by the blood filter;

at least one blood pressure sensor; and

a memory device containing information regarding the disposable set; and

a console on which the disposable set is detachably mounted for pumping the blood and the filtrates, the console including a microprocessor for controlling the operation of the disposable set in combination with the console,

wherein the memory device further includes information regarding a patient being treated using the disposable set, and

wherein the information regarding the treatment of a patient is selected from the group including the date and time when the disposable set was mounted on the pump console, the date and time when the disposable set was dismounted from the pump console, and battery operation.

9. A blood filtration system comprising:

a filter;

a disposable set comprising;

a first passage through which flows blood to and from a patient,

a second passage through which flows filtrates removed from the blood by the blood filter;

at least one blood pressure sensor; and

a memory device containing information regarding the disposable set; and

a console on which the disposable set is detachably mounted for pumping the blood and the filtrates, the console including a microprocessor for controlling the operation of the disposable set in combination with the console,

wherein the memory device further includes information regarding a patient being treated using the disposable set, and

wherein the information about a patient being treated using the disposable set stored in the memory device is selected from the group including patient age, sex and weight, diagnosis, medication administered before and during treatment, and blood pressure and blood gauges.

10. A blood filtration system comprising:

a filter;

a disposable cartridge comprising;

a first passage through which flows blood to and from a patient,

a second passage through which flows filtrates removed from the blood by the blood filter;

at least one blood pressure sensor; and

a memory device containing information regarding the disposable cartridge; and

a console on which the disposable cartridge is detachably mounted for pumping the blood and the filtrates, the console including a microprocessor for controlling the operation of the disposable cartridge in combination with the console,

wherein the memory device includes an EEPROM and is embedded in a housing of a sensor used with the disposable cartridge.

11. A blood filtration system comprising:

a filter;

a disposable set comprising;

a first passage through which flows blood to and from a patient,

a second passage through which flows filtrates removed from the blood by the blood filter;

at least one blood pressure sensor; and

a memory device containing information regarding the disposable set; and

a console on which the disposable set is detachably mounted for pumping the blood and the filtrates, the console including a microprocessor for controlling the operation of the disposable set in combination with the console,

wherein the memory device is a key code card that is plugged into a control panel of the console.