An Optical System for Measuring Blood Pressure

Correlation of Blood Pressure Measurements Using an Optical System for Measuring Blood Pressure

Status

UNKNOWN

Phases

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT03042949

Enrollment

100

Registered

2017-02-03

Start date

2017-02-15

Completion date

2018-04-01

Last updated

2017-02-09

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Blood Pressure Disorders

Brief summary

An assesment of an optical system that measures blood pressure on the finger -Elfor 1 device. The system is based on a small optical sensor that emits coherent light into the skin and collects the reflected light from the red blood cells in the blood vessels in the skin under the sensor. The sensor is able to detect the pulse wave and blood pressure can be measured. The investigators plan to measure blood pressure with the new sensor in patients who are attending the Hypertension Clinic at Meir Hospital or are undergoing hemodialysis to validate the sensor.

Detailed description

If the blood flow is temporarily interrupted by inflating a small pneumatic cuff at the root of the finger, blood flow is occluded and the pulse wave disappears. As the pressure in the cuff is released, blood flow returns, the pulse wave is again detected and blood pressure can be measured. This apparatus is easy to use and will allow simplified monitoring of blood pressure contains the laser source and optical sensors that measure the reflected light. The investigators proposed to validate the sensor by measuring the blood pressure in patients with this optical sensor and also by standard plethysmography. The investigators plan to measure participants with low, normal and high blood pressure in order to assess the accuracy and reliability of the new device.

Interventions

DEVICEBlood pressure measurement

Blood pressure measurement with a standard plethysmograph

DEVICEBlood pressure measurement with the new device

Blood pressure measurement with the optical sensor, Elfor -1 device.

Study design

Allocation

Intervention model

SINGLE_GROUP

Primary purpose

DEVICE_FEASIBILITY

Masking

NONE

Intervention model description

Subjects will have their blood pressure measured by standard plethysmography and with a new optical device

Eligibility

Sex/Gender

ALL

Age

18 Years to No maximum

Healthy volunteers

Inclusion criteria

* patients on hemodialysis or visiting the hypertension outpatient clinic at Meir Medical Hospital.

Exclusion criteria

Design outcomes

Primary

Measure	Time frame	Description
Blood pressure reading	three hours	Measurements will be performed with a standard plethysmograph and with a new sensor

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026