Pulse rate sensor system
First Claim
Patent Images
1. An apparatus for noninvasive measurement of pulse rate comprising:
- a sensor, wherein said sensor senses at least one pressure or force and produces at least one sensor element signal indicative of said pressure or force;
a gimbal device operably connected to said sensor, said gimbal device having at least one plate member and at least two axes perpendicular to each other and parallel to said at least one plate member, wherein said sensor is rotatable about said at least two axes by a predetermined angle;
a spring element operatively connected at a first end to said gimbal device, said spring element pressing said sensor against a radial artery of a subject;
a case, operatively connected to a second end of said spring element;
a flexible printed circuit board operatively connected at a first end to said sensor;
a central processing unit located in said case and operatively connected to a second end of said flexible printed circuit, said central processing unit determining a pulse rate based on said at least one sensor element signal received from said sensor;
a display located in said case connected to said central processing unit, said display displaying said pulse rate; and
playing said pulse rate; and
a strap operatively connected to said case on at least two sides for holding said case on said subject, said strap at no time contacting said spring element.
2 Assignments
0 Petitions
Accused Products
Abstract
A pulse rate sensor system is packaged in a wristwatch sized assembly and is worn by the user to provide an accurate determination of pulse rate. A tonometer sensor is provided to detect heartbeat pressure waves produced by a superficial artery. A microcomputer manipulates the unprocessed tonometer sensor element signals using multiple algorithms to determine an accurate pulse rate.
119 Citations
36 Claims
-
1. An apparatus for noninvasive measurement of pulse rate comprising:
-
a sensor, wherein said sensor senses at least one pressure or force and produces at least one sensor element signal indicative of said pressure or force; a gimbal device operably connected to said sensor, said gimbal device having at least one plate member and at least two axes perpendicular to each other and parallel to said at least one plate member, wherein said sensor is rotatable about said at least two axes by a predetermined angle; a spring element operatively connected at a first end to said gimbal device, said spring element pressing said sensor against a radial artery of a subject; a case, operatively connected to a second end of said spring element; a flexible printed circuit board operatively connected at a first end to said sensor; a central processing unit located in said case and operatively connected to a second end of said flexible printed circuit, said central processing unit determining a pulse rate based on said at least one sensor element signal received from said sensor; a display located in said case connected to said central processing unit, said display displaying said pulse rate; and
playing said pulse rate; anda strap operatively connected to said case on at least two sides for holding said case on said subject, said strap at no time contacting said spring element. - View Dependent Claims (2, 3, 4, 5, 6)
-
-
7. An apparatus for noninvasive measurement of pulse rate comprising:
-
a sensor wherein said sensor senses at least one pressure and produces at least one sensor element signal indicative of said pressure; a case; a spring element coupled at a first end to said sensor and at a second end to said case, said spring element pressing said sensor against a subject near a radial artery; a flexible printed circuit board having a plurality of conductors operatively connected at a first end to said sensor; a central processing unit located in said case and operatively connected to a second end of said flexible printed circuit board, said central processing unit determining a pulse rate based on said at least one sensor element signal received from said sensor; a display located in said case and operatively connected to said central processing unit, said display displaying said pulse rate; and a strap operatively connected to said case on at least two sides for holding said case on a subject. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14)
-
-
15. An apparatus for noninvasive measurement of pulse rate comprising:
-
a sensor wherein said sensor senses at least one pressure or force and produces at least one sensor element signal indicative of said pressure or force; a gimbal device operably connected to said sensor, said gimbal device having at least one plate member and at least two axes perpendicular to each other and parallel to said at least one plate member, wherein said sensor is rotatable about said at least two axes by a predetermined angle; a spring element operatively connected at a first end to said gimbal device, said spring element pressing said sensor against a subject near a radial artery; a case, operatively connected to a second end of said spring element; a central processing unit located in said case and operatively connected to said sensor, said central processing unit determining a pulse rate based on said at least one sensor element signal received from said sensor; a display located in said case and operatively connected to said central processing unit, said display displaying said pulse rate; and a strap operatively connected to said case on at least two sides for holding said case on said subject, said strap at no time contacting said spring element. - View Dependent Claims (16, 17, 18, 19, 20, 21)
-
-
22. An apparatus for noninvasive measurement of pulse rate comprising:
-
a sensor means for sensing at least one pressure or force and producing at least one sensor element signal indicative of said pressure or force; means for pivoting said sensor means about an axis; means for pressing said sensor means against a subject near a radial artery; means for anchoring said pressing means; central processing means for determining a pulse rate based on said at least one sensor element signal received from said sensor means; means for displaying said pulse rate; and means for holding said anchoring means on said subject, said holding means at no time contacting said pressing means. - View Dependent Claims (23, 24, 25, 26, 27, 28)
-
-
29. An apparatus for noninvasive measurement of pulse rate comprising:
-
a tonometer sensor means having a plurality of pressure sensing elements disposed in an array, for sensing blood pressure on at least one of said pressure sensing elements and producing a plurality of sensor element signals, at least one of said sensor element signals being indicative of said blood pressure; means for correcting said sensor element signals using a correction factor based on at least one characteristic of said sensor element signals; means for determining a plurality of average pulse rates based on said corrected sensor element signals; means for computing a value corresponding to an autocorrelation of said corrected sensor element signals over a predetermined time period; means for calculating a display pulse rate based on at least two of said average pulse rates, each of said at least two pulse rates having a corresponding said value within a predetermined range; and means for generating an output signal corresponding to said calculated display pulse rate.
-
-
30. An apparatus for noninvasive measurement of a cardiopulmonary parameter comprising:
-
means for sensing a physiological parameter response to blood pressure; means for producing at least one sensor element signal indicative of said physiological parameter; means for determining a plurality of average cardiopulmonary parameters based on said at least one sensor element signal; means for determining a plurality of valid average cardiopulmonary parameters; means for calculating a display cardiopulmonary parameter based on at least two of said valid average cardiopulmonary parameters; and means for generating an output signal corresponding to said display cardiopulmonary parameter. - View Dependent Claims (31, 32)
-
-
33. An apparatus for noninvasive measurement of a cardiopulmonary parameter comprising:
-
a sensor means for sensing at least one cardiopulmonary parameter responsive to blood pressure and producing at least one sensor element signal indicative of said blood pressure; means for pivoting said sensor means about an axis; means for pressing said sensor means against a radial artery of a subject; means for anchoring said pressing means; central processing means for determining a cardiopulmonary parameter based on said at least one sensor element signal received from said sensor means; means for displaying said cardiopulmonary parameter; means for holding said anchoring means on said subject, said holding means at no time contacting said pressing means. - View Dependent Claims (34, 35, 36)
-
Specification