A Compact Multimodal Patch for Continuous and Electrode-Free Cardiopulmonary Monitoring

Beren Semiz

Makale detayları

A Compact Multimodal Patch for Continuous and Electrode-Free Cardiopulmonary Monitoring

Yazarlar:

Beren Semiz

Yayıncı:

Gazi University

Ana Başlıklar:

Biomedical Instrumentation | Electronic Sensors | Embedded Systems

Dergi:

Gazi University Journal of Science Part A: Engineering and Innovation Vol.12 Issue 3, pp.873-893

Belge Tipi:

Makale

Yayın Tarihi:

9/2025

Belge Dili:

İngilizce

Document ID (Org No.):

2001359833

pISSN:

2147-9542

Anahtar kelimeler:

Özet:

 Continuous and non-invasive cardiopulmonary monitoring is essential for the early detection and management of both chronic and acute health conditions. This study presents a compact, multimodal wearable patch that captures seismocardiogram SCG, dual-wavelength photoplethysmogram PPG, and skin temperature signals without requiring gel electrodes or form factor-limited designs. The system integrates low-noise sensors and a custom-designed PCB within a 3D-printed enclosure, resulting in a lightweight, electrode-free device suitable for a wide range of users. Experimental validation with 12 participants demonstrated accurate estimation of heart rate HR, heart rate variability HRV, respiratory rate RR, and temperature, with low mean percentage errors across all modalities. HR and HRV were estimated with errors below 1, RR with a mean error of 1.6, and temperature within a 3.7 error margin. Additionally, the application of Teager-Kaiser energy operator improved the robustness of peak detection in SCG signals, leading to more accurate and reliable HR and HRV estimation. Unlike many existing wearables that rely on adhesive electrodes or single-signal modalities, this system offers a miniaturized, multi-sensor solution for continuous cardiopulmonary monitoring, suitable for both clinical environments and daily-life integration.

 Continuous and non-invasive cardiopulmonary monitoring is essential for the early detection and management of both chronic and acute health conditions. This study presents a compact, multimodal wearable patch that captures seismocardiogram SCG, dual-wavelength photoplethysmogram PPG, and skin temperature signals without requiring gel electrodes or form factor-limited designs. The system integrates low-noise sensors and a custom-designed PCB within a 3D-printed enclosure, resulting in a lightweight, electrode-free device suitable for a wide range of users. Experimental validation with 12 participants demonstrated accurate estimation of heart rate HR, heart rate variability HRV, respiratory rate RR, and temperature, with low mean percentage errors across all modalities. HR and HRV were estimated with errors below 1, RR with a mean error of 1.6, and temperature within a 3.7 error margin. Additionally, the application of Teager-Kaiser energy operator improved the robustness of peak detection in SCG signals, leading to more accurate and reliable HR and HRV estimation. Unlike many existing wearables that rely on adhesive electrodes or single-signal modalities, this system offers a miniaturized, multi-sensor solution for continuous cardiopulmonary monitoring, suitable for both clinical environments and daily-life integration.

 Continuous and non-invasive cardiopulmonary monitoring is essential for the early detection and management of both chronic and acute health conditions. This study presents a compact, multimodal wearable patch that captures seismocardiogram SCG, dual-wavelength photoplethysmogram PPG, and skin temperature signals without requiring gel electrodes or form factor-limited designs. The system integrates low-noise sensors and a custom-designed PCB within a 3D-printed enclosure, resulting in a lightweight, electrode-free device suitable for a wide range of users. Experimental validation with 12 participants demonstrated accurate estimation of heart rate HR, heart rate variability HRV, respiratory rate RR, and temperature, with low mean percentage errors across all modalities. HR and HRV were estimated with errors below 1, RR with a mean error of 1.6, and temperature within a 3.7 error margin. Additionally, the application of Teager-Kaiser energy operator improved the robustness of peak detection in SCG signals, leading to more accurate and reliable HR and HRV estimation. Unlike many existing wearables that rely on adhesive electrodes or single-signal modalities, this system offers a miniaturized, multi-sensor solution for continuous cardiopulmonary monitoring, suitable for both clinical environments and daily-life integration.

 Continuous and non-invasive cardiopulmonary monitoring is essential for the early detection and management of both chronic and acute health conditions. This study presents a compact, multimodal wearable patch that captures seismocardiogram SCG, dual-wavelength photoplethysmogram PPG, and skin temperature signals without requiring gel electrodes or form factor-limited designs. The system integrates low-noise sensors and a custom-designed PCB within a 3D-printed enclosure, resulting in a lightweight, electrode-free device suitable for a wide range of users. Experimental validation with 12 participants demonstrated accurate estimation of heart rate HR, heart rate variability HRV, respiratory rate RR, and temperature, with low mean percentage errors across all modalities. HR and HRV were estimated with errors below 1, RR with a mean error of 1.6, and temperature within a 3.7 error margin. Additionally, the application of Teager-Kaiser energy operator improved the robustness of peak detection in SCG signals, leading to more accurate and reliable HR and HRV estimation. Unlike many existing wearables that rely on adhesive electrodes or single-signal modalities, this system offers a miniaturized, multi-sensor solution for continuous cardiopulmonary monitoring, suitable for both clinical environments and daily-life integration.

Makale detayları

A Compact Multimodal Patch for Continuous and Electrode-Free Cardiopulmonary Monitoring

Yazarlar:

Beren Semiz

Yayıncı:

Gazi University

Ana Başlıklar:

Biomedical Instrumentation | Electronic Sensors | Embedded Systems

Dergi:

Gazi University Journal of Science Part A: Engineering and Innovation Vol.12 Issue 3, pp.873-893

Belge Tipi:

Makale

Yayın Tarihi:

9/2025

Belge Dili:

İngilizce

Document ID (Org No.):

2001359833

pISSN:

2147-9542

Wearable Devices

Health Monitoring

Seismocardiogram

Photoplethysmogram

Biomedical Signal Processing

Temperature Sensing

Sayı

Makale detayları

A Compact Multimodal Patch for Continuous and Electrode-Free Cardiopulmonary Monitoring

Yazarlar: Beren Semiz

Yayıncı: Gazi University

Ana Başlıklar: Biomedical Instrumentation | Electronic Sensors | Embedded Systems

Dergi: Gazi University Journal of Science Part A: Engineering and Innovation Vol.12 Issue 3, pp.873-893

Belge Tipi: Makale

Yayın Tarihi: 9/2025

Belge Dili: İngilizce

Document ID (Org No.): 2001359833

pISSN: 2147-9542

Wearable Devices

Health Monitoring

Seismocardiogram

Photoplethysmogram

Biomedical Signal Processing

Temperature Sensing

Sayı

Yazarlar:

Beren Semiz

Yayıncı:

Gazi University

Ana Başlıklar:

Biomedical Instrumentation | Electronic Sensors | Embedded Systems

Dergi:

Gazi University Journal of Science Part A: Engineering and Innovation Vol.12 Issue 3, pp.873-893

Belge Tipi:

Makale

Yayın Tarihi:

9/2025

Belge Dili:

İngilizce

Document ID (Org No.):

2001359833

pISSN:

2147-9542