Arrangement for measuring biosignal

• US 6,520,920 B2
• Filed: 02/15/2001
• Issued: 02/18/2003
• Est. Priority Date: 02/16/2000
• Status: Expired due to Fees

• Current Assignee: Polar Electro Oy
• Original Assignee: Polar Electro Oy
• Inventors: Miettinen, Jari, Nissilä, Seppo
• Primary Examiner(s): Shaver, Kevin
• Assistant Examiner(s): Natnithithadha, Navin
• Application Number:
  US09/783,788
• Publication Number:
  US 20010020134A1
• Time in Patent Office: 733 Days
• Field of Search: 600/503, 600/300, 600/481, 600/485, 600/490, 600/500, 600/501, 600/502
• US Class Current: 600/503
• CPC Class Codes: A61B 5/02438 with portable devices, e.g. worn by the patient
• CPC Class Codes: A61B 5/681 Wristwatch-type devices
• CPC Class Codes: A61B 5/6843 Monitoring or controlling sensor contact pressure

Abstract

The invention relates to an arrangement for measuring a biosignal from the surface of the skin of a living human body. The arrangement comprises a casing (5) on which a measuring sensor (300) rests which is to be arranged against a measurement target (1) on the body, and a fastener (6) for fastening the casing (5) to the measurement target (1). The arrangement is characterized by comprising an element (7), such as a spring element, which rests on the casing (5) and the fastener (6) such that the element (7) is arranged to turn the casing (5) substantially towards the measurement target (1) with respect to the fastener (6).

Claims

1. An arrangement for measuring a biosignal from a living body, comprising:

a casing (5),

a measuring sensor (300) which rests on the casing (5) and which is to be arranged against a measurement target (1) on the body, and

a fastener (6) for fastening the casing (5) to the measurement target (1),

characterized in that

the arrangement comprises an element (7) whose first end (9) rests on the casing (5) and whose second end (10) rests on the fastener (6) such that the element (7) is arranged to produce a force which turns the casing (5) substantially towards the measurement target (1) with respect to the fastener (6).

2. An arrangement as claimed in claim 1, characterized in that the casing (5) comprises an upside (5A) and an underside (5B), whereby the measuring sensor (300) of the arrangement is arranged on the underside (5B) of the casing (5) pressing against the measurement target.

3. An arrangement as claimed in claim 2, characterized in that the measuring sensor (300) is arranged substantially in the vicinity of an upper edge (5D) of the casing (5).

4. An arrangement as claimed in claim 2, characterized in that the element (7) is arranged at ajoint between the fastener (6) and the upper edge (5D) of the casing (5) to press the upper edge (5D) of the casing (5) against the measurement target (1).

5. An arrangement as claimed in claim 2, characterized in that the element (7) is a spring element.

6. An arrangement as claimed in claim 3, characterized in that the element (7) is arranged at a joint between the fastener (6) and the upper edge (5D) of the casing (5) to press the upper edge (5D) of the casing (5) against the measurement target (1).

7. An arrangement as claimed in claim 3, characterized in that the element (7) is a spring element.

8. An arrangement as claimed in claim 1, characterized in that the element (7) is arranged at a joint between the fastener (6) and the upper edge (5D) of the casing (5) to press the upper edge (5D) of the casing (5) against the measurement target (1).

9. An arrangement as claimed in claim 8, characterized in that the arrangement comprises a fastening part (8) connecting the casing (5) and the fastener (6) and in that the element (7) is arranged substantially at the fastening part (8) connecting the casing (5) and the fastener (6).

10. An arrangement as claimed in claim 8, characterized in that the element (7) is a spring element.

11. An arrangement as claimed in claim 9, characterized in that the fastening part (8) is a pin.

12. An arrangement as claimed in claim 11, characterized in that the element (7) is a spring element.

13. An arrangement as claimed in claim 9, characterized in that the element (7) is a spring element.

14. An arrangement as claimed in claim 1, characterized in that the element (7) is a spring element.

15. An arrangement as claimed in claim 14, characterized in that between the ends (9, 10) the element (7) rests on the fastening part (8) connecting the casing (5) and the fastener (6).

16. An arrangement as claimed in claim 15, characterized in that the spring element is a helical spring (7A).

17. An arrangement as claimed in claim 15, characterized in that the spring element is a leaf spring (7B).

18. An arrangement as claimed in claim 14, characterized in that the spring element is a helical spring (7A).

19. An arrangement as claimed in claim 14, characterized in that the spring element is a leaf spring (7B).

20. An arrangement as claimed in claim 19, characterized in that the leaf spring (7B) comprises a pre-bent and/or shaped structural part.

21. An arrangement as claimed in claim 20, characterized in that the biosignal measurement target (1) is a human artery (2), whereby the measuring arrangement is arranged to measure a pressure pulse of the artery (2).

22. An arrangement as claimed in claim 21, characterized in that the biosignal measuring arrangement is to be attached to a human body.

23. An arrangement as claimed in claim 21, characterized in that the biosignal measuring arrangement is to be attached to a human wrist.

24. An arrangement as claimed in claim 20, characterized in that the biosignal measuring arrangement is to be attached to a human body.

25. An arrangement as claimed in claim 20, characterized in that the leaf spring (7B) is part of the fastener (6).

26. An arrangement as claimed in claim 20, characterized in that the biosignal measuring arrangement is to be attached to a human wrist.

27. An arrangement as claimed in claim 19, characterized in that the leaf spring (7B) is part of the fastener (6).

28. An arrangement as claimed in claim 27, characterized in that the leaf spring (7B) is made of plastic.

29. An arrangement as claimed in claim 28, characterized in that the biosignal measuring arrangement is a measuring arrangement for measuring a human heart rate.

30. An arrangement as claimed in claim 29, characterized in that the fastener (6) is a wristband.

31. An arrangement as claimed in claim 28, characterized in that the biosignal measuring arrangement is to be attached to a human body.

32. An arrangement as claimed in claim 28, characterized in that the biosignal measuring arrangement is to be attached to a human wrist.

33. An arrangement as claimed in claim 27, characterized in that the measuring sensor (300) is a pressure sensor.

34. An arrangement as claimed in claim 33, characterized in the biosignal measuring arrangement is to be attached onto a human wrist.

35. An arrangement as claimed in claim 27, characterized in that the biosignal measuring arrangement is to be attached to a human body.

36. An arrangement as claimed in claim 27, characterized in that the biosignal measuring arrangement is to be attached to a human wrist.

37. An arrangement for measuring a biosignal from a measurement target on a living body, comprising:

a casing (5),

a measuring sensor (300) for producing a measurement signal, which sensor (300) rests on the casing (5) and is to be arranged against a measurement target (1) on the body

a calculating unit (400, 401, 402, 403) for producing measurement information, which calculating unit (400, 401, 402, 403) is arranged in the casing (5) to process the measurement signal

a measurement information display (410) or memory (411) communicating with the calculating unit (400, 401, 402, 403) for displaying and/or storing the measurement information, and

a fastener (6) for fastening the casing (5) to the measurement target (1),

characterized in that

the arrangement comprises an element (7) whose first end (9) rests on the casing (5) and whose second end (10) rests on the fastener (6) such that the element (7) is arranged to produce a force which turns the casing (5) substantially towards the measurement target (1) with respect to the fastener (6).

38. An arrangement as claimed in claim 37, characterized in that the biosignal measuring arrangement is a measuring arrangement for measuring human blood pressure, wherein a pressure pulse signal to be measured is utilized in determining blood pressure.

39. An arrangement as claimed in claim 37, characterized in that the biosignal measuring arrangement is to be attached to a human body.

40. An arrangement as claimed in claim 37, characterized in that the biosignal measuring arrangement is to be attached to a human wrist.