Substantial Equivalence Study for Kai Sensors RSpot Non-Contact Respiratory Rate Spot Check

Remote Doppler System to Measure Heart Rate and Breathing Pattern

Status

Completed

Phases

Unknown

Study type

Observational

Source

ClinicalTrials.gov

Registry ID

NCT00827905

Enrollment

Registered

2009-01-23

Start date

2009-01-31

Completion date

2009-01-31

Last updated

2010-08-06

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

Conditions

Respiration

Keywords

Non-Contact, Radar, Respiratory, Respiration, Breathing, Rate, Frequency, Respiratory Mechanics, Respiratory Rate Measurement

Brief summary

The purpose of this study is to determine whether the respiratory rate provided by the Kai Sensors RSpot 100 Non-Contact Respiratory Rate Spot Check is as accurate as that provided by the Welch Allyn Propaq Encore model 242 and the Embla Embletta system with Universal XactTrace respiratory effort sensor and Somnologica for Embletta software.

Detailed description

Currently, medical professionals obtain respiratory rate for vital signs assessments either by counting the number of breaths during a 15, 30, or 60 second interval and multiplying to obtain breaths per minute, or by reading the respiratory rate off of a multiparameter vital signs monitor (such as a Welch Allyn Propaq Monitor), that provides respiratory effort information based on the change of AC impedance through ECG leads. The Respiration channel (RESP) of the Welch Allyn Propaq is intended to detect the rate or absence of respiratory effort, deriving the signal by measuring the AC impedance between the selected terminals of the ECG electrodes. The RSpot 100 Non-Contact Respiratory Rate Spot Check provides an alternative to the medical professional counting respiratory rate or reading the rate from a vital signs monitor designed for continuous respiratory rate monitoring. The Kai Sensors RSpot 100 Non-Contact Respiratory Rate Spot Check is used for a one-time measurement of respiratory rate as part of a vital signs assessment in the hospital or other clinical settings. In this study, the RSpot is operated simultaneously with two other systems that provide a respiratory rate: Welch Allyn Propaq Encore model 242 and Embletta system with Universal XactTrace and Somnologica software. A respiratory rate is also obtained by counting respiratory excursions for the same duration as the RSpot measurement interval, 15, 30, or 60 seconds. The rates obtained from each of the four measurement methods are then compared.

Interventions

DEVICERSpot Non-Contact Respiratory Rate Spot Check

The Kai Sensors RSpot 100 provides a measurement of respiratory rate at a single point in time. It uses a low-power radar to detect respiratory effort, and analyzes the respiratory effort signal to provide a respiratory rate.

Study design

Observational model

CASE_ONLY

Time perspective

CROSS_SECTIONAL

Eligibility

Sex/Gender

ALL

Age

18 Years to No maximum

Healthy volunteers

Inclusion criteria

* Adult \>18 years old * Hospitalized on Tower 6 or Pauahi 6 or Pauahi 4 * Clinically stable * Able to provide informed consent

Exclusion criteria

* Clinically unstable 1. Hypotensive requiring pressors or intra-aortic balloon pump 2. Intubated 3. Dyspnea or chest pain at rest 4. Resting tachycardia (heart rate \>100 bpm) 5. Requires supplemental (e.g., nasal canula or face mask) oxygen * Scheduled or planned (e.g., CT scan, central line placement) procedure during the 30 minute study period

Countries

United States

Outcome results

None listed

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