Surgical cassette

• US 8,011,905 B2
• Filed: 11/17/2005
• Issued: 09/06/2011
• Est. Priority Date: 11/17/2005
• Status: Active Grant

• Current Assignee: Alcon Incorporated
• Original Assignee: Novartis Ag
• Inventors: Gordon, Raphael, Boukhny, Mikhail, Artsyukhovich, Alexander N., Svetic, Ralph E., Sorensen, Gary P., Thoe, David, Yadlowsky, Michael
• Primary Examiner(s): Freay; Charles G
• Assistant Examiner(s): COMLEY, ALEXANDER BRYANT
• Application Number:
  US11/281,751
• Publication Number:
  US 20070107490A1
• Time in Patent Office: 2,119 Days
• Field of Search: 73/11.6, 417/477.2, 604/30, 604/67, 604/151, 604/153, 604/189
• US Class Current: 417/477.2
• CPC Class Codes: A61F 9/00736 Instruments for removal of intra-ocular material or intra-ocular injection, e.g. cataract instruments A61F9/008 takes precedence
• CPC Class Codes: A61M 1/72 Cassettes forming partially or totally the fluid circuit
• CPC Class Codes: A61M 1/77 Suction-irrigation systems aspiration tips supplying fluids A61M1/85; specific for negative pressure wound therapy A61M1/92; combined with tracheal tubes A61M16/0463
• CPC Class Codes: A61M 2205/12 with interchangeable cassettes forming partially or totally the fluid circuit
• CPC Class Codes: A61M 2205/3569 sublocal, e.g. between console and disposable
• CPC Class Codes: A61M 2205/60 with identification means
• CPC Class Codes: A61M 2205/6063 Optical identification systems
• CPC Class Codes: A61M 2205/6072 Bar codes
• CPC Class Codes: A61M 3/0201 Cassettes therefor

Abstract

A surgical system and cassette, the cassette having an identification method that is specific to the cassette. Suitable methods include bar coding or Radio Frequency Identification (“RFID”). Cassette information that may be encoded include features such as lot number and performance characteristics, such as pressure sensor calibration data, flow and pressure data and any other performance characteristics of the cassette captured during testing of the cassette at manufacture.

Claims

1. A surgical system, comprising:

a surgical console having a cassette receiving portion;

a cassette sized and shaped to be received in the cassette receiving portion of the surgical console, the cassette comprising;

a housing;

a pressure sensor coupled to the housing;

a bar code, located on the cassette; and

pressure sensor calibration data, stored in the bar code, that includes unique information specific to operation of the pressure sensor coupled to the housing and determined for that unique pressure sensor by testing that unique pressure sensor on the cassette at manufacture;

wherein the surgical console comprises an optical reader configured to read the pressure sensor calibration data when the cassette is in the cassette receiving portion of the surgical console;

wherein software contained within the console is configured to automatically make appropriate adjustments in operating parameters of the console, in response to the read pressure sensor calibration data; and

wherein said pressure sensor calibration data for multiple cassettes are determined by testing the pressure sensor on each cassette at manufacture.

2. The system of claim 1, wherein the console is configured to automatically make appropriate adjustments in the operating parameters of the console, in response to reading said pressure sensor calibration data, to help assure optimum performance of the surgical console in combination with an individual cassette.

7. The system of claim 1, wherein the pressure sensor is an irrigation pressure sensor and wherein said pressure sensor calibration data includes calibration data for the irrigation pressure sensor.

11. The system of claim 1, wherein the bar code additionally includes individual cassette identification data including lot number, manufacture date, and/or component part tracking information.

12. The system of claim 1, wherein the pressure sensor is an aspiration pressure sensor and wherein said pressure sensor calibration data includes calibration data for the aspiration pressure sensor.

13. The system of claim 1, wherein the bar code is at least partially printed on the pressure sensor.

19. The system of claim 1, wherein the optical reader is a bar code reader, a CCD (Charge-Coupled Device) camera, or a CMOS (Complementary Metal-Oxide Semiconductor) sensor.

21. The surgical system of claim 1, wherein said pressure sensor calibration data for multiple cassettes are determined by testing at least two pressure sensors on each cassette at manufacture.

3. A surgical cassette sized and shaped to be received in a cassette receiving portion of a surgical console, the cassette comprising:

a housing;

a pressure sensor coupled to the housing;

a bar code, located on the cassette; and

pressure sensor calibration data, stored in the bar code, that includes unique information specific to operation of the pressure sensor and determined for the pressure sensor by testing the pressure sensor on the cassette at manufacture;

wherein the surgical console has an optical reader configured to read pressure sensor calibration data within the bar code when the cassette is in the cassette receiving portion of the surgical console; and

wherein said pressure sensor calibration data for multiple cassettes are determined by testing the pressure sensor on each cassette at manufacture.

4. The cassette of claim 3, wherein the bar code additionally includes individual cassette identification data, including lot number, manufacture date, and/or component part tracking information.

5. The surgical cassette of claim 3, wherein the pressure sensor is an aspiration pressure sensor and wherein said pressure sensor calibration data includes calibration data for the aspiration pressure sensor.

6. The surgical cassette of claim 5, wherein the pressure sensor is on an exterior of the housing.

8. The surgical cassette of claim 3, wherein the pressure sensor is an irrigation pressure sensor and wherein said pressure sensor calibration data includes calibration data for the irrigation pressure sensor.

14. The cassette of claim 3, wherein the bar code is at least partially printed on the pressure sensor.

22. The surgical system of claim 3, wherein said pressure sensor calibration data for multiple cassettes are determined by testing at least two pressure sensors on each cassette at manufacture.

9. A method of manufacturing surgical cassettes, comprising:

providing a housing for each cassette;

coupling a separate pressure sensor to each of the cassette housings;

determining pressure sensor calibration data individually for each separate pressure sensor by individually testing each separate pressure sensor during manufacturing; and

coupling a bar code, with unique determined pressure sensor calibration data for a specific pressure sensor, to the cassette housing coupled to that specific pressure sensor;

wherein the cassette is configured to be received in a surgical console that includes an optical reader configured to read the pressure sensor calibration data contained within the bar code when the cassette is received in the surgical console to automatically make appropriate adjustments in the operating parameters of the console according to the pressure sensor calibration data for that one unique pressure sensor.

10. The method of claim 9, further comprising storing encoded individual cassette identification data on the bar code.

15. The method of claim 9, wherein the determined pressure sensor calibration data for the pressure sensor includes unique information specific to operation of that unique pressure sensor determined for that one unique pressure sensor by testing that one unique pressure sensor at manufacture.

16. The method of claim 9, wherein at least one pressure sensor is an aspiration pressure sensor.

17. The method of claim 9, wherein at least one pressure sensor is an irrigation pressure sensor.

18. The method of claim 9, wherein the bar code further comprises individual cassette identification data including lot number, manufacture date, and/or component part tracking information.

20. The method of claim 9, wherein a first bar code coupled to a first cassette of the cassette housings includes different pressure sensor calibration data than a second bar code coupled to a second cassette of the cassette housings and wherein the first cassette and the second cassette are coupled to a same type of pressure sensor and wherein the different pressure sensor calibration data reflects calibration differences between the same type pressure sensors.