Equipment and method for continually measuring the blood pressure for monitoring purposes
First Claim
1. An apparatus for continuously measuring the blood pressure of a user for monitoring purposes, the apparatus comprising:
- a housing with a bearing plate that forms a housing base;
at least one pressure sensor having a first plunger with a first external free end suitable for resting against a site on the external surface of the body of the user, the pressure sensor continuously measuring during calibration and continuous measurement the pressure at the site influenced by the blood pressure and generating a corresponding electrical pressure signal;
a band suitable for encompassing the body and holding the pressure sensor against the surface at the site with safe, functional contact;
a contact-pressure sensor having a second plunger with a second external free end, wherein the second external free end is suitable for resting against the external surface of the body of the user, continuously measuring the contact pressure during calibration and continuous measurement, and generating a corresponding electrical contact-pressure signal; and
an electronic circuit comprising a current supply, a microprocessor for establishing a diastolic and a systolic blood-pressure value, taking into account the contact-pressure signal when processing the simultaneously measured pressure signal, and an output element for displaying or outputting the blood-pressure values,wherein;
the first plunger and the second plunger both interact with an associated piezo-resistive sensor element fixedly arranged on a printed circuit board;
the first external free end of the first plunger of the pressure sensor protrudes relative to and by a first distance beyond the bearing plate; and
the second external free end of the second plunger of the contact-pressure sensor protrudes relative to and by a second distance beyond the bearing plate, wherein the first fixed distance is greater than the second fixed distance.
2 Assignments
0 Petitions
Accused Products
Abstract
The equipment has at least one pressure sensor (28) disposed for being placed onto the surface of the body of the user and being held attached thereto by means of a band. The attachment force is selected such that the pressure signal from the pressure sensor (28) contains variations caused by the pulse. An attachment pressure sensor (52) or a band tension sensor (18′) generates an electrical signal depending on the attachment pressure. The microprocessor (36) determines the diastolic and systolic blood pressure values from the pressure signal, taking into account the signal from the attachment pressure sensor (52) or the band tension sensor (18′).
14 Citations
19 Claims
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1. An apparatus for continuously measuring the blood pressure of a user for monitoring purposes, the apparatus comprising:
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a housing with a bearing plate that forms a housing base; at least one pressure sensor having a first plunger with a first external free end suitable for resting against a site on the external surface of the body of the user, the pressure sensor continuously measuring during calibration and continuous measurement the pressure at the site influenced by the blood pressure and generating a corresponding electrical pressure signal; a band suitable for encompassing the body and holding the pressure sensor against the surface at the site with safe, functional contact; a contact-pressure sensor having a second plunger with a second external free end, wherein the second external free end is suitable for resting against the external surface of the body of the user, continuously measuring the contact pressure during calibration and continuous measurement, and generating a corresponding electrical contact-pressure signal; and an electronic circuit comprising a current supply, a microprocessor for establishing a diastolic and a systolic blood-pressure value, taking into account the contact-pressure signal when processing the simultaneously measured pressure signal, and an output element for displaying or outputting the blood-pressure values, wherein; the first plunger and the second plunger both interact with an associated piezo-resistive sensor element fixedly arranged on a printed circuit board; the first external free end of the first plunger of the pressure sensor protrudes relative to and by a first distance beyond the bearing plate; and the second external free end of the second plunger of the contact-pressure sensor protrudes relative to and by a second distance beyond the bearing plate, wherein the first fixed distance is greater than the second fixed distance. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method for continuously measuring the blood pressure of a user for monitoring purposes, in which:
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at least one pressure sensor is brought to rest against a site on the external surface of the body of the user; the pressure influenced by the blood pressure is continuously measured at the site by means of the pressure sensor during calibration and continuous measurement and a corresponding electrical pressure signal is generated, wherein the pressure sensor has a first plunger with a first external free end; the body is encompassed by a band for holding the pressure sensor against the surface at the site with safe, functional contact; a contact pressure is continuously measured by means of a contact-pressure sensor during calibration and continuous measurement, wherein the contact-pressure sensor has a second plunger with a second external free end, wherein the first plunger of the pressure sensor protrudes relative to and by a first distance beyond a bearing plate and the second plunger of contact-pressure sensor protrudes relative to and by a second distance beyond the bearing plate, wherein the first distance is greater than the second distance, and wherein the first and the second plungers both interact with an associated piezo-resistive sensor element fixedly arranged on a printed circuit board; a corresponding electrical contact-pressure signal is generated; and a diastolic and a systolic blood-pressure value is established from the pressure signal via a microprocessor of an electronic circuit with a current supply, taking into account the contact-pressure signal when processing the simultaneously measured pressure signal, and said blood-pressure value can be displayed or output by means of an output element. - View Dependent Claims (17, 18, 19)
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Specification