Multiple wavelength sensor drivers

• US 20060241363A1
• Filed: 03/01/2006
• Published: 10/26/2006
• Est. Priority Date: 03/01/2005
• Status: Active Grant

• Current Assignee: Willow Laboratories Incorporated
• Original Assignee: Cercacor Laboratories
• Inventors: Lamego, Marcelo, Smith, Robert, Al-Ali, Ammar, Diab, Mohamed, Dalke, David
• Granted Patent: US 8,050,728 B2
• Time in Patent Office: Days
• US Class Current: 600/323
• CPC Class Codes: A61B 1/00 Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes examination of body cavities or body tracts using ultrasonic, sonic or infrasonic waves A61B8/12; endoscopic instruments for taking cell samples or for biopsy A61B10/04; for surgical purposes A61B17/00; endoscopic surgical cutting instruments A61B17/32; surgical instruments using a laser beam being directed along or through a flexible conduit A61B18/22; Illuminating arrangements therefor for the eyes A61B3/00
• CPC Class Codes: A61B 2562/08 Sensors provided with means for identification, e.g. barcodes or memory chips
• CPC Class Codes: A61B 2562/085 combined with means for recording calibration data
• CPC Class Codes: A61B 2562/185 Optical shielding, e.g. baffles
• CPC Class Codes: A61B 2562/222 Electrical cables or leads therefor, e.g. coaxial cables or ribbon cables
• CPC Class Codes: A61B 5/0022 Monitoring a patient using a global network, e.g. telephone networks, internet
• CPC Class Codes: A61B 5/0205 Simultaneously evaluating both cardiovascular conditions and different types of body conditions, e.g. heart and respiratory condition
• CPC Class Codes: A61B 5/02416 using photoplethysmograph signals, e.g. generated by infrared radiation A61B5/14552 takes precedence
• CPC Class Codes: A61B 5/02427 Details of sensor
• CPC Class Codes: A61B 5/0261 using optical means, e.g. infrared light
• CPC Class Codes: A61B 5/0295 using plethysmography, i.e. measuring the variations in the volume of a body part as modified by the circulation of blood therethrough, e.g. impedance plethysmography
• CPC Class Codes: A61B 5/14532 for measuring glucose, e.g. by tissue impedance measurement
• CPC Class Codes: A61B 5/14546 for measuring analytes not otherwise provided for, e.g. ions, cytochromes
• CPC Class Codes: A61B 5/1455 using optical sensors, e.g. spectral photometrical oximeters
• CPC Class Codes: A61B 5/14551 for measuring blood gases
• CPC Class Codes: A61B 5/14552 Details of sensors specially adapted therefor
• CPC Class Codes: A61B 5/1495 Calibrating or testing of in-vivo probes
• CPC Class Codes: A61B 5/6815 Ear
• CPC Class Codes: A61B 5/6826 Finger
• CPC Class Codes: A61B 5/6829 Foot or ankle
• CPC Class Codes: A61B 5/6832 : using adhesives A61B5/259 takes precedence
• CPC Class Codes: A61B 5/6838 : Clamps or clips
• CPC Class Codes: A61B 5/7221 : Determining signal validity, reliability or quality A61B5/7207 and A61B5/7217 take precedence
• CPC Class Codes: A61B 5/7246 : using correlation, e.g. template matching or determination of similarity
• CPC Class Codes: A61B 5/7275 : Determining trends in physiological measurement data; Predicting development of a medical condition based on physiological measurements, e.g. determining a risk factor
• CPC Class Codes: A61B 5/7278 : Artificial waveform generation or derivation, e.g. synthesising signals from measured signals A61B5/327 takes precedence
• CPC Class Codes: A61B 5/7405 : using sound
• CPC Class Codes: A61B 5/742 : using visual displays A61B5/339 takes precedence
• CPC Class Codes: A61B 5/746 : Alarms related to a physiological condition, e.g. details of setting alarm thresholds or avoiding false alarms alarms per se G08B
• CPC Class Codes: A61B 5/7475 : User input or interface means, e.g. keyboard, pointing device, joystick
• CPC Class Codes: G16H 10/40 : for data related to laboratory analysis, e.g. patient specimen analysis
• CPC Class Codes: G16H 40/67 : for remote operation
• CPC Class Codes: Y10S 439/909 : Medical use or attached to human body

Abstract

A cable is capable of communicating signals between a monitor and a physiological sensor. The monitor is capable of activating individual light emitters of an emitter array arranged in an electrical grid by driving at least one of row drive lines and at least one of column drive lines of the electrical grid. The cable has a first row input, a first column input, a second row input and a second column input. The cable also has a first output which combines the first row input and the first column input and a second output which combines the second row input and the second column input. The inputs are adapted to connect to electrical grid drive lines of a monitor. Further, the outputs are adapted to connect to contacts of a physiological sensor having back-to-back configured LEDs in electrical communication with the contacts.

Claims

1. A cable capable of communicating signals between a monitor and a physiological sensor, the monitor capable of activating individual light emitters of an emitter array arranged in an electrical grid by driving at least one of a plurality of row drive lines and at least one of a plurality of column drive lines of the electrical grid, the cable comprising:

a first row input;

a first column input;

a second row input;

a second column input;

a first output which combines the first row input and the first column input; and

a second output which combines the second row input and the second column input,

wherein the inputs are adapted to connect to electrical grid drive lines of a monitor, and

wherein the outputs are adapted to connect to contacts of a physiological sensor having back-to-back configured LEDs in electrical communication with the contacts.

2. The cable according to claim 1:

wherein the first output is electrically connected to the first row input and the first column input, and

wherein the second output is electrically connected to the second row input and the second column input.

3. The cable according to claim 2 further comprising:

an input connector;

an output connector; and

a plurality of cable conductors disposed between and in electrical communications with the input connector and the output connect,

wherein the input connector is adapted to provide communications with a monitor configured to drive the row inputs and the column inputs, and

wherein the output connector is adapted to provide communications with the contacts of the physiological sensor.

4. The cable according to claim 3 wherein the output connections to the row and column inputs are disposed in the output connector.

5. The cable according to claim 3 wherein the output connections to the row and column inputs are disposed in the input connector.

6. The cable according to claim 3 wherein the output connections to the row and column inputs are disposed in the cable conductors.

7. The cable according to claim 3 further comprising:

a first removable jumper which connects the first row input to the first column input; and

a second removable jumper which connects the second row input to the second column input.

8. A physiological sensor comprising:

an electrical grid configured to activate a plurality of light emitting sources by addressing at least one of a plurality of row conductors and at least one of a plurality of column conductors,

a first LED and a second LED configured in a back-to-back arrangement so that a first contact is connected to a first LED cathode and a second LED anode and a second contact is connected to a first LED anode and a second LED cathode,

wherein the first contact is in communications with a first one of the row conductors and a first one of the column conductors,

wherein the second contact is in communications with a second one of the row conductors and a second one of the column conductors,

wherein the first LED is activated by addressing the first row conductor and the second column conductor, and

wherein the second LED is activated by addressing the second row conductor and the first column conductor.

9. The physiological sensor according to claim 8 further comprising an information element disposed between the first contact and the second contact.

10. The physiological sensor according to claim 9 wherein the information element is adapted to provide information in response to a DC electrical grid drive.

11. The physiological sensor according to claim 9 wherein the information element is adapted to provide information in response to an AC electrical grid drive.

12. The physiological sensor according to claim 9 wherein the information element is adapted to provide information in response to a combination of an AC electrical grid drive and a DC electrical grid drive.

13. The physiological sensor according to claim 9 wherein the information element comprises a passive information element.

14. The physiological sensor according to claim 9 wherein the information element comprises an active information element.

15. The physiological sensor according to claim 9 wherein the information element comprises a memory information element.

16. An electrical grid drive method comprising:

providing a monitor having an electrical grid drive;

communicating at least a portion of the electrical grid drive to a physiological sensor; and

adapting the electrical grid drive to activate back-to-back configured LEDs.

17. The electrical grid drive method according to claim 16 wherein the adapting comprises combining row and column drive lines.

18. The electrical grid drive method according to claim 17 wherein the combining comprises connecting at least some of the row and column drive lines in a cable, the cable adapted to provide communication between the monitor and the physiological sensor.

19. The electrical grid drive method according to claim 17 wherein the combining comprises connecting at least some of the row and column drive lines in a sensor having the back-to-back configured LEDs.