Apparatus for evaluating blood flow and controlling blood flow using a magnetic field and methods therefor

• US 7,824,323 B2
• Filed: 03/31/2005
• Issued: 11/02/2010
• Est. Priority Date: 03/31/2004
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Jang, Woo-young, Park, Jae-chan, Gi, Ho-seong, Cho, Chan-ho, Shin, Sang-hoon
• Primary Examiner(s): Marmor, II; Charles A
• Assistant Examiner(s): MATTHEWS, CHRISTINE HOPKINS
• Application Number:
  US11/094,572
• Publication Number:
  US 20050222486A1
• Time in Patent Office: 2,042 Days
• Field of Search: 600 9- 15, 600504-506, 600/481
• US Class Current: 600/9
• CPC Class Codes: A61B 5/026 Measuring blood flow A61B3/1233, A61B3/1241 take precedence
• 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: A61N 2/004 specially adapted for a specific therapy
• CPC Class Codes: A61N 2/008 for pain treatment or analgesia
• CPC Class Codes: A61N 2/02 using magnetic fields produced by coils, including single turn loops or electromagnets A61N2/12 takes precedence
• CPC Class Codes: A61N 2/06 using magnetic fields produced by permanent magnets A61N2/12 takes precedence

Abstract

In a blood flow controlling apparatus using a magnetic field for controlling blood flow within a living body, and methods therefor, the blood flow controlling apparatus includes a magnetic field applying unit for supplying the magnetic field and applying the magnetic field to the living body, a blood flow measuring unit for measuring a blood flow signal including information about blood flow, and a blood flow controlling unit for controlling the blood flow according to the measured blood flow signal.

Claims

1. A blood flow controlling apparatus using a magnetic field for controlling blood flow within a living body, the blood flow controlling apparatus comprising:

a magnetic field applying unit for supplying the magnetic field and applying the magnetic field to the living body;

a blood flow measuring unit for measuring a blood flow signal including information about blood flow; and

a blood flow controlling unit for controlling the blood flow according to the measured blood flow signal,

wherein the blood flow controlling unit comprises;

a magnetic field intensity calculator for calculating an intensity of the magnetic field applied to the living body; and

a magnetic field applying time calculator for calculating a time the magnetic field is applied to the living body.

2. The blood flow controlling apparatus as claimed in claim 1, wherein the blood flow controlling unit is operable to provide biofeedback of the measured blood flow signal.

3. The blood flow controlling apparatus as claimed in claim 1, wherein the blood flow controlling unit comprises:

a blood flow quantity and blood flow difference calculator for calculating a blood flow quantity and a blood flow difference;

the magnetic field intensity calculator;

the magnetic field applying time calculator; and

a controller for controlling the magnetic field intensity calculator and the magnetic field applying time calculator using the blood flow quantity and the blood flow difference calculated by the blood flow quantity and blood flow difference calculator.

4. The blood flow controlling apparatus as claimed in claim 3, further comprising a mode selecting unit for selecting from a plurality of modes.

5. The blood flow controlling apparatus as claimed in claim 4, wherein the mode selecting unit is operable to select one mode from the group consisting of a blood flow improvement evaluation mode, a blood flow quantity monitoring mode, an optimum condition determination mode, and a blood flow improving mode, and wherein the selected mode is input to the controller of the blood flow controlling unit.

6. The blood flow controlling apparatus as claimed in claim 5, wherein the optimum condition determination mode comprises an optimum magnetic field applying time determining mode, an optimum magnetic field intensity determining mode, and an optimum magnetic field intensity and applying time determining mode.

7. The blood flow controlling apparatus as claimed in claim 1, further comprising an outputting unit.

8. The blood flow controlling apparatus as claimed in claim 7, wherein the outputting unit displays data selected from the group consisting of blood flow quantity, blood flow difference, and optimum magnetic field intensity and applied time, obtained by the blood flow controlling unit, and wherein the outputting unit displays information so that a user may control a blood flow controlling apparatus software including one or more items selected from the group consisting of a start menu, a mode selection menu, and a user history menu.

9. The blood flow controlling apparatus as claimed in claim 7, wherein the outputting unit is an output device that outputs data obtained by the blood flow controlling unit in a manner selected from print, an audio signal, a two-dimensional visual image, and moving images.

10. The blood flow controlling apparatus as claimed in claim 7, wherein the outputting unit is an output device that displays data obtained from the blood flow controlling unit while measuring the blood flow in real-time.

11. The blood flow controlling apparatus as claimed in claim 7, wherein the outputting unit is an output device for analyzing data obtained from the blood flow controlling unit and for additionally outputting medical information or diagnosis.

12. The blood flow controlling apparatus as claimed in claim 1, wherein the magnetic field applying unit comprises a monopole stimulus.

13. The blood flow controlling apparatus as claimed in claim 1, wherein the magnetic field applying unit comprises a first magnet having a north pole and a second magnet having a south pole, the north pole of the first magnet being adhered to the south pole of the second magnet.

14. The blood flow controlling apparatus as claimed in claim 1, wherein the blood flow measuring unit is operable to use an electrical impedance method including impedance plethysmography (IPG).

15. The blood flow controlling apparatus as claimed in claim 1, wherein the blood flow measuring unit is operable to measure a radial artery region of a wrist.

16. A blood flow evaluating apparatus for examining an effect on blood flow of an apparatus that applies a magnetic field to a predetermined region of a living body, the blood flow evaluating apparatus comprising:

a blood flow measuring unit for measuring a blood flow signal including information about blood flow;

a blood flow quantity and blood flow difference calculator for calculating a blood flow quantity and a blood flow difference using the blood flow signal measured according to an applied magnetic field;

a magnetic field applying time calculator for calculating a time the magnetic field is applied to the living body, and a magnetic field intensity calculator for calculating an intensity of the magnetic field applied to the living body; and

wherein an improvement in blood flow is evaluated using the calculated blood flow quantity and the blood flow difference.

17. A blood flow controlling apparatus using a magnetic field, the blood flow controlling apparatus comprising:

a magnetic field applying unit for applying the magnetic field to a predetermined region of a living body;

a blood flow measuring unit for measuring a blood flow signal including information about blood flow;

a mode selecting unit for selecting from among a plurality of modes by a user;

a blood flow quantity and blood flow difference calculator for calculating a blood flow quantity and a blood flow difference using the blood flow signal;

a controlling unit for generating a control signal according to a mode selected by the mode selecting unit; and

a magnetic field controlling unit for controlling the magnetic field using the control signal and the blood flow quantity and difference, and applying the magnetic field to the predetermined region, wherein the magnetic field controlling unit includes a magnetic field applying time calculator for calculating a time the magnetic field is applied to the living body, and a magnetic field intensity calculator for calculating an intensity of the magnetic field applied to the living body.

18. The blood flow controlling apparatus as claimed in claim 17, wherein the mode selecting unit may select one mode from the group consisting of mode 0 through mode 4, where mode 0 is for evaluating blood flow improvement, mode 1 is for monitoring the blood flow quantity, mode 2 is determining an optimum magnetic field applying time for improving the blood flow using the magnetic field applying time calculator, mode 3 is for determining an optimum magnetic field intensity for improving the blood flow using the magnetic field intensity calculator, and mode 4 is for controlling an optimum blood flow using the magnetic field applying time calculator and the magnetic field intensity calculator.