Cuff mechanism for blood pressure meter

• US 5,107,848 A
• Filed: 06/06/1990
• Issued: 04/28/1992
• Est. Priority Date: 07/13/1989
• Status: Expired due to Term

• Current Assignee: Omron Healthcare Company Limited (Omron Corporation)
• Original Assignee: Omron Corporation
• Inventors: Oku, Akihiko
• Primary Examiner(s): Kamm, William E.
• Assistant Examiner(s): Akers, Scott R.
• Application Number:
  US07/533,835
• Time in Patent Office: 692 Days
• Field of Search: 128/678, 128/677, 128/686, 128/687
• US Class Current: 600/499
• CPC Class Codes: A61B 5/02233 Occluders specially adapted therefor tourniquets A61B17/132
• CPC Class Codes: A61B 5/0225 the pressure being controlled by electric signals, e.g. derived from Korotkoff sounds

Abstract

A cuff for a blood pressure meter comprising a casing, a cylindrical collar accommodated in the casing, a slider to which one end of the collar is connected, a stopper for the slider, a knob for the slider, a spring for interconnecting the knob and slider, and an indicator for indicating when the deformation of the spring is within a certain amount of displacement.

Claims

1. A cuff mechanism for a blood pressure meter, comprising:

a) a casing;

b) a collar having a pair of ends in said casing, one end of said collar being connected to said casing;

c) a slider movable in said casing, the other end of said collar being connected to said slider;

d) means for sliding said slider in said casing;

e) a knob positioned on said slider and movable therewith;

f) means for biasing said slider relative to said knob; and

g) marker means for indicating the displacement of said biasing means whereby a proper cuff is attained.

2. The cuff of claim 1, including an inflatable bladder positioned in said collar.

3. The cuff of claim 1, wherein said marker means includes a mark on a top surface of said slider and a window in said knob cooperating with said mark.

4. The cuff of claim 1, wherein said marker means includes a mark on a top surface of said slider and is visible when said knob moves a predetermined distance so as to expose said mark.

5. The cuff of claim 1, including means for adjustably fixing said knob, and said slider in said casing.

6. The cuff of claim 5, further comprising a track in said casing, wherein said means for adjustably fixing cooperates with said track.

7. The cuff of claim 6, wherein said means for adjustably fixing includes a pin in said knob, and a hook on said pin, and wherein said track includes a plurality of grooves, and said hook cooperates with said grooves.

8. The cuff of claim 7, further comprising spring means for engaging said hook into cooperation with said track, said spring means for engaging being located between said hook and said pin.

9. A method of measuring blood pressure comprising:

b) at least partially surrounding a user'"'"'s finger with a cuff including a collar and a bladder,

c) moving a slider connected to the collar to secure the finger therein,

d) indicating to the user an adequate cuff pressure threshold,

e) inflating the bladder with air,

f) releasing air from the bladder and ascertaining the systolic and diastolic pressures.

10. The method of claim 9, including connecting a micro processing unit to a pump performing the inflating step and controlling the releasing step.