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Miniaturized Battery-Free Wireless Systems for Wearable Pulse Oximetry.

Advanced functional materials · 2017 · Unclear · Insufficient evidence

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UnclearInsufficient evidencePaper 2855

The paper reports miniaturized, flexible, battery-free wearable pulse oximetry systems using near-field communication (NFC) for wireless capture and transmission of photoplethysmograms. Demonstrations on various body locations and quantitative comparisons to …

Study snapshot

PublicationAdvanced functional materials · 2017
Study typeengineering
Reported directionUnclear
Evidence ratingInsufficient

Abstract

Development of unconventional technologies for wireless collection, storage and analysis of quantitative, clinically relevant information on physiological status is of growing interest. Soft, biocompatible systems are widely regarded as important because they facilitate mounting on external (e.g. skin) and internal (e.g. heart, brain) surfaces of the body. Ultra-miniaturized, lightweight and battery-free devices have the potential to establish complementary options in bio-integration, where chronic interfaces (i.e. months) are possible on hard surfaces such as the fingernails and the teeth, with negligible risk for irritation or discomfort. Here we report materials and device concepts for flexible platforms that incorporate advanced optoelectronic functionality for applications in wireless capture and transmission of photoplethysmograms, including quantitative information on blood oxygenation, heart rate and heart rate variability. Specifically, reflectance pulse oximetry in conjunction with near-field communication (NFC) capabilities enables operation in thin, miniaturized flexible devices. Studies of the material aspects associated with the body interface, together with investigations of the radio frequency characteristics, the optoelectronic data acquisition approaches and the analysis methods capture all of the relevant engineering considerations. Demonstrations of operation on various locations of the body and quantitative comparisons to clinical gold standards establish the versatility and the measurement accuracy of these systems, respectively.

Machine Enhanced Logic

AI evidence extraction

Structured fields below were generated from the paper’s abstract and metadata to make the evidence easier to inspect. Automated extraction may be incomplete or incorrect; verify important details against the original paper.

Study typeengineering
Effect directionunclear
PopulationNot supplied
Sample sizeNot supplied
ExposureRF
Evidence strengthInsufficientConfidence: 66% · Peer reviewed: yes

Main findings

The paper reports miniaturized, flexible, battery-free wearable pulse oximetry systems using near-field communication (NFC) for wireless capture and transmission of photoplethysmograms. Demonstrations on various body locations and quantitative comparisons to clinical gold standards are described as establishing versatility and measurement accuracy.

Outcomes measured

  • Device performance for wireless capture/transmission of photoplethysmograms
  • Blood oxygenation (pulse oximetry) measurement accuracy vs clinical gold standards
  • Heart rate measurement
  • Heart rate variability measurement
  • Radio frequency characteristics of the system
  • Body-interface material aspects (comfort/irritation considerations)
View raw extracted JSON
{
  "study_type": "engineering",
  "exposure": {
    "band": "RF",
    "source": "near-field communication (NFC) wearable device",
    "frequency_mhz": null,
    "sar_wkg": null,
    "duration": null
  },
  "population": null,
  "sample_size": null,
  "outcomes": [
    "Device performance for wireless capture/transmission of photoplethysmograms",
    "Blood oxygenation (pulse oximetry) measurement accuracy vs clinical gold standards",
    "Heart rate measurement",
    "Heart rate variability measurement",
    "Radio frequency characteristics of the system",
    "Body-interface material aspects (comfort/irritation considerations)"
  ],
  "main_findings": "The paper reports miniaturized, flexible, battery-free wearable pulse oximetry systems using near-field communication (NFC) for wireless capture and transmission of photoplethysmograms. Demonstrations on various body locations and quantitative comparisons to clinical gold standards are described as establishing versatility and measurement accuracy.",
  "effect_direction": "unclear",
  "limitations": [],
  "evidence_strength": "insufficient",
  "confidence": 0.66,
  "peer_reviewed_likely": "yes",
  "keywords": [
    "wearable",
    "pulse oximetry",
    "photoplethysmogram",
    "NFC",
    "battery-free",
    "flexible electronics",
    "wireless transmission",
    "radio frequency characteristics",
    "biocompatible",
    "optoelectronics"
  ],
  "suggested_hubs": []
}
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AI-extracted fields are generated from the abstract and metadata and may be incomplete or incorrect. This material is for informational purposes and is not medical advice.

Identifiers and source

DOI: 10.1002/adfm.201604373
PubMed: 28798658

Read the original paper →

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