The Development of a Measuring System for Intraoral SpO2
Yuki Kashima1, Minako Onimaru1, Ryosuke Isogai2
1Department of Orthodontics, School of Dentistry, Showa University, 2-1-1 Kitasenzoku, Ota-ku, Tokyo 145-8515, Japan.
Sensors (Basel, Switzerland)
|January 23, 2024
Summary
This study introduces a novel intraoral method for measuring blood oxygen saturation (SpO2) using a wearable device. Intraoral SpO2 monitoring offers faster detection of changes compared to finger-based methods.
Area of Science:
- Biomedical Engineering
- Medical Devices
- Physiology
Background:
- Blood oxygen saturation (SpO2) is a critical patient vital sign.
- Conventional SpO2 measurement methods face challenges like time delays and ambient light interference.
- No prior research exists on intraoral SpO2 measurement using wearable technology.
Purpose of the Study:
- To develop and validate a novel intraoral SpO2 measurement technique.
- To identify optimal conditions for intraoral SpO2 sensing.
- To compare the responsiveness of intraoral vs. fingertip SpO2 monitoring.
Main Methods:
- Evaluated perfusion index (PI) at six intraoral locations on the maxilla to find the optimal site.
- Determined optimal measurement pressure (0.3–0.8 N) for PI validation.
- Utilized a custom mouthpiece device for simultaneous intraoral and fingertip SpO2 measurements during breath-holding in 12 healthy adults.
Main Results:
- The palatal gingiva near maxillary canine teeth yielded the highest PI values.
- Optimal PI was achieved within a pressure range of 0.3 to 0.8 N.
- Intraoral SpO2 changes were detected approximately 7 seconds faster than fingertip measurements due to proximity to the heart.
Conclusions:
- The oral cavity is a viable location for biological information acquisition using novel devices.
- Intraoral SpO2 monitoring demonstrates faster response times compared to traditional methods.
- This novel wearable device offers potential for improved SpO2 monitoring.
Related Concept Videos
01:19Guidelines For Measuring Vital Signs
1.6K
Following these guidelines can help nurses accurately measure vital signs, assess changes in patient conditions, and provide timely treatment when necessary. Adhering closely to the guidelines ensures the accuracy and reliability of the results.
Before taking a patient's vital signs, a nurse would consider and assess the patient's comfort level and ensure appropriate equipment is available.
Before taking a patient's vital signs, a nurse would consider and assess the patient's comfort level and ensure appropriate equipment is available.
1.6K
01:24Pulse Oximetry
329
Pulse oximetry, or SpO2, is a non-invasive method for continuously monitoring arterial oxygen saturation (SaO2). This procedure involves attaching a probe or sensor to the patient's fingertip, forehead, earlobe, or nose bridge. The sensor works by detecting changes in oxygen saturation levels through light signals generated by the oximeter and reflected by the pulsing blood under the probe.
Purpose
Average SpO2 values are greater than 95%. If the readings fall below 90%, it indicates that...
Purpose
Average SpO2 values are greater than 95%. If the readings fall below 90%, it indicates that...
329
01:19Special considerations while measuring oxygen saturation
592
Assessing respiratory rate concurrently with pulse measurement is fundamental to patient care, providing valuable insights into the patient's respiratory function. The normal breathing rate for an adult usually falls within a normal range of 12 to 20 breaths per minute. Abnormal respiratory rates can signal underlying health conditions or the need for immediate intervention.
Ensuring accuracy in vital sign recordings while prioritizing patient comfort and minimizing anxiety is...
Ensuring accuracy in vital sign recordings while prioritizing patient comfort and minimizing anxiety is...
592
01:30Equipments Used To Measure Blood Pressure
973
Direct Method
This invasive approach involves cannulating a peripheral artery. During each cardiac contraction, pressure generates mechanical motion within the catheter, transmitted through rigid, fluid-filled tubing to a transducer. This transducer converts mechanical motion into electrical signals displayed as waveforms on a monitor. An automatic flushing system prevents blood backflow. Due to the potential risk of unexpected arterial blood loss, this method is primarily used in intensive...
This invasive approach involves cannulating a peripheral artery. During each cardiac contraction, pressure generates mechanical motion within the catheter, transmitted through rigid, fluid-filled tubing to a transducer. This transducer converts mechanical motion into electrical signals displayed as waveforms on a monitor. An automatic flushing system prevents blood backflow. Due to the potential risk of unexpected arterial blood loss, this method is primarily used in intensive...
973
01:14Temperature Measurement Sites
1.7K
A thermometer measures body temperature. The common sites for measuring body temperature are the oral cavity, axillary region, temporal artery, and skin surface, such as the forehead, abdomen, and axilla. True core body temperature is assessed in the rectum, tympanic membrane, pulmonary artery, esophagus, and urinary bladder.
Oral: When assessing oral temperature, the thermometer tip should be placed under the tongue in the posterior sublingual pocket. It offers accurate readings and can be...
Oral: When assessing oral temperature, the thermometer tip should be placed under the tongue in the posterior sublingual pocket. It offers accurate readings and can be...
1.7K
01:14Assessing Body Temperature - Oral
745
Here are the steps to accurately measure oral temperature using an electronic thermometer:
Step 1:
Start by practicing proper hand hygiene to prevent the spread of microorganisms.
Step 2:
Take the thermometer out of the charging unit, switch it on, and wait for the ready sign.
Step 3:
Gently slide the probe cover until a click is heard. This simple action prevents cross-contamination and ensures the correct placement of the probe cover.
Step 4:
Instruct the patient to open their mouth and place...
Step 1:
Start by practicing proper hand hygiene to prevent the spread of microorganisms.
Step 2:
Take the thermometer out of the charging unit, switch it on, and wait for the ready sign.
Step 3:
Gently slide the probe cover until a click is heard. This simple action prevents cross-contamination and ensures the correct placement of the probe cover.
Step 4:
Instruct the patient to open their mouth and place...
745