System and method for controlling a tilt table

• US 20070238937A1
• Filed: 12/21/2006
• Published: 10/11/2007
• Est. Priority Date: 12/23/2004
• Status: Abandoned Application

• Current Assignee: Chung-Yuan Christian University
• Original Assignee: Chung-Yuan Christian University
• Inventors: Chang, Walter, Liu, Shih-Wei
• Application Number:
  US11/642,515
• Publication Number:
  US 20070238937A1
• Time in Patent Office: Days
• US Class Current: 600/301
• CPC Class Codes: A61B 5/00 Measuring for diagnostic purposes radiation diagnosis A61B6/00; diagnosis by ultrasonic, sonic or infrasonic waves A61B8/00; Identification of persons
• CPC Class Codes: A61B 5/021 Measuring pressure in heart or blood vessels A61B5/0205 takes precedence
• CPC Class Codes: A61B 5/145 Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissuemeasuring of blood pressure or blood flow A61B5/02; non-radiation detecting or locating of foreign bodies in blood A61B5/06
• CPC Class Codes: A61B 5/318 Heart-related electrical modalities, e.g. electrocardiography [ECG]
• CPC Class Codes: A61B 5/369 Electroencephalography [EEG] devices for psychotechnics A61B5/16
• CPC Class Codes: A61B 5/704 Tables

Abstract

A system and method for controlling a tilt table employs a physiological sensing module to sense the physiological status of a person lying on the tilt table and to generate at least one physiological signal. Also, the above-mentioned system and method employs a tilt table control module to receive the physiological signal mentioned above and the corresponding changed threshold of the physiological signal to compare the physiological status of the person and to generate an angle adjustment value. Whereby, the tilt table control module can perform an adjustment process to adjust the tilt table to a tilt angle according to the angle adjustment value.

Claims

1. A system for controlling a tilt table, said system comprising:

a physiological sensing module, measuring the physiological status of a person lying on the tilt table and generating at least one physiological signal, wherein said physiological sensing module comprises a sensor for brain blood, and said at least one physiological signal comprises at least one brain blood flow signal, wherein said sensor for brain blood derives said at least one brain blood flow signal by using ultrasonic system to measure at least one carotid arterial blood variation; and

a tilt table control module, receiving said at least one physiological signal and at least one corresponding changed threshold to compare the physiological status of the person and generating an angle adjustment value;

whereby said tilt table control module being able to perform an adjustment process to adjust the tilt table to a tilt angle according to said angle adjustment value, wherein said at least one corresponding changed threshold comprises at least one brain blood flow corresponding changed threshold, wherein said tilt table control module receives and compares said at least one brain blood flow signal with said at least one brain blood flow corresponding changed threshold so as to derive the physiological status of the person and generates said angle adjustment value for remedying the faint.

2. The system according to claim 1, wherein said physiological sensing module at least includes one of the following and any combinations thereof:

a sensor for blood pressure, a sensor for pulse, a sensor for cardiograph, a sensor for brain waves, a sensor for oximeter, a sensor for heart rate, and a sensor for spirometer, wherein said sensor for oximeter measures the blood oxygen concentration and plethysmograph by a pulse oximetry.

3. The system according to claim 1, wherein said tilt table control module comprise:

an angle detection module, detecting the tilt angle of the bedplate of the tilt table and generating a detected angle value;

a main controller, receiving said at least one physiological signal and said at least one corresponding changed threshold to compare the physiological status of the person and generating said angle adjustment value, wherein said main controller also receives and compares said detected angle value with said angle adjustment value so as to generate a tilt angle value; and

an angle adjustment module, receiving said angle adjustment value and adjusting the tilt table to a tilt angle according to said angle adjustment value.

4. The system according to claim 3, wherein said main controller compares said detected angle value to said tilt angle value, and said angle adjustment module adjusts the tilt angle of the bedplate of the tilt table according to said angle adjustment value when said detected angle value is not equal to said tilt angle value.

5. The system according to claim 3, wherein said main controller compares said detected angle value to said tilt angle value, and said angle adjustment module does not work when said detected angle value is equal to said tilt angle value.

6. The system according to claim 1, further comprising an interruption control module, wherein said interruption control module is able to interrupt said adjustment process performed by said tilt table control module.

7. The system according to claim 6, wherein said interruption control module further provides a manual adjustment function for people to adjust the tilt angle of the bedplate of the tilt table.

8. The system according to claim 1, wherein said at least one corresponding changed threshold is sent to said tilt table control module from one of the following:

an input module, a memory, and a database.

9. The system according to claim 1, further comprising an output module, wherein said output module at least includes one of the following and any combinations thereof:

a displayer, a printer, a speaker, and a database.

10. A system for controlling a tilt table, said system comprising:

a physiological sensing module, measuring the physiological status of a person lying on the tilt table and generating at least one physiological signal, wherein said physiological sensing module comprises a sensor for brain blood, and said at least one physiological signal comprises at least one brain blood flow signal, wherein said sensor for brain blood derives said at least one brain blood flow signal by using ultrasonic system to measure at least one carotid arterial blood variation;

an angle detection module, detecting the tilt angle of the bedplate of the tilt table and generating a detected angle value;

a main controller, receiving said at least one physiological signal and at least one corresponding changed threshold to compare the physiological status of the person and generating an angle adjustment value, wherein said main controller also receives said detected angle value to calculate said detected angle value and said angle adjustment value and generates a tilt angle value; and

an angle adjustment module, receiving said angle adjustment value and adjusting the tilt table to a tilt angle according to said angle adjustment value, wherein said at least one corresponding changed threshold comprises at least one brain blood flow corresponding changed threshold, wherein said tilt table control module receives and compares said at least one brain blood flow signal with said at least one brain blood flow corresponding changed threshold so as to derive the physiological status of the person and generates said angle adjustment value for remedying the faint.

11. The system according to claim 10, wherein said main controller compares said detected angle value to said tilt angle value, and said angle adjustment module adjusts the tilt angle of the bedplate of the tilt table according to said angle adjustment value when said detected angle value is not equal to said tilt angle value.

12. The system according to claim 10, wherein said main controller compares said detected angle value and said tilt angle value, and said angle adjustment module does not work when said detected angle value is equal to said tilt angle value.

13. The system according to claim 10, wherein said physiological sensing module at least includes one of the following and any combinations thereof:

a sensor for blood pressure, a sensor for pulse, a sensor for cardiograph, a sensor for brain waves, a sensor for oximeter, a sensor for heart rate, and a sensor for spirometer, wherein said sensor for oximeter measures the blood oxygen concentration and plethysmograph by a pulse oximetry.

14. The system according to claim 10, further comprising an interruption control module, wherein said interruption control module is able to interrupt the control performed by said main controller to said angle adjustment module, and said interruption control module further provides a manual adjustment function for people to adjust the tilt angle of the bedplate of the tilt table.

15. The system according to claim 10, wherein said at least one corresponding changed threshold is sent to said main controller from one of the following:

an input module, a memory, and a database.

16. The system according to claim 10, further comprising an output module, wherein said output module at least includes one of the following and any combinations thereof:

a displayer, a printer, a speaker, and a database.

17. A method for controlling a tilt table, said method comprising:

measuring the physiological status of a person lying on the tilt table and generating at least one physiological signal, wherein said at least one physiological signal comprises at least one brain blood flow signal;

receiving said at least one physiological signal and at least one corresponding changed threshold to compare the status of the person and generating an angle adjustment value, wherein said at least one corresponding changed threshold comprises at least one brain blood flow corresponding changed threshold; and

performing an adjustment process, wherein said adjustment process adjusts the tilt table to a tilt angle according to said angle adjustment value.

18. The method according to claim 17, wherein said adjustment process further includes:

detecting the tilt angle of the bedplate of the tilt table and generating a detected angle value;

calculating said detected angle value and said angle adjustment value and generating a tilt angle value; and

adjusting the tilt table to said tilt angle when said detected angle value is not equal to said tilt angle value.

19. The method according to claim 18, when said detected angle value is equal to said tilt angle value, stopping said adjustment process.

20. The method according to claim 17, wherein said physiological signal at least includes one of the following and any combinations thereof:

a signal for blood pressure, a signal for pulse rate, a signal for electrocardiogram, a signal for brain waves, a signal for oximeter, and a signal for spirometer.

21. A method for controlling a tilt table, said method comprising:

performing a physiological signal feedback control, said physiological signal feedback control comprising;

measuring the physiological status of a person lying on the tilt table and generating at least one physiological signal, wherein said at least one physiological signal comprises at least one brain blood flow signal;

receiving said at least one physiological signal and at least one corresponding changed threshold to compare the status of the person and generating an angle adjustment value, wherein said at least one corresponding changed threshold comprises at least one brain blood flow corresponding changed threshold; and

adjusting the tilt table to a tilt angle according to said angle adjustment value;

and

performing a tilt angle control, said tilt angle control comprising;

detecting the tilt angle of the bedplate of the tilt table and generating a detected angle value;

calculating said detected angle value and said angle adjustment value and generating a tilt angle value; and

adjusting the tilt table to said tilt angle when said detected angle value is not equal to said tilt angle value.

22. The method according to claim 21, further comprising:

performing a physiological signal sampling control, said physiological signal sampling control comprising;

receiving said at least one physiological signal and said at least one corresponding changed threshold to compare the status of the person and generating a physiological sampling rate and time adjustment value; and

adjusting the time and frequency for measuring the physiological status of the person according to said physiological sampling rate and time adjustment value.