One Flexible Sensor for EEG + PPG Integration

A PET-based platform combining forehead EEG electrodes and reflective PPG optical trend sensing.

DONGGUAN, China — September 23, 2026 — VMANX INDUSTRIAL CO., LIMITED has developed a flexible medical-sensing platform that brings forehead EEG electrodes and reflective PPG optical trend sensing into one PET-based assembly. Created for medical-device OEM development, the concept addresses a practical integration challenge: how to acquire complementary electrical and optical waveforms through one low-profile forehead interface while keeping signal conditioning, algorithms and final clinical claims within the finished-device manufacturer’s validation process.

Why bring EEG and PPG into one forehead interface?

EEG et PPG observant phaenomena physiologica diversa. Electrodi EEG capiunt signa biopotentialia infima, quae ad activitatem electricam cerebri pertinent. PPG reflectiva utitur emittentibus lucis et photodetectore in eodem latere textus positis, ut pulsationes in luce redita capiantur.

In multis operibus monitorii, haec functiones implementantur ut sensoria separata, cum gradibus positionis, cavis et interfacibus mechanicis separatis. Coniunctio flexibilis communis potest integrationem physicam pro aequipe OEM simplificare, regionem electrode et regionem opticam in una platforma frontali registrans.

Intentio non est duos signos in unam mensuram coniungere. Potius architectura vias electricas et opticas in sensorio distinctas manere permittit, dum dispositivum dominans undas resultantes ad analysin specificam applicationis synchronizare potest.

Function-level architecture for public communication. Circuit and pin-level details are intentionally excluded.

A functionally separated composite structure

The public architecture can be understood as three functional zones:

• Flexible EEG electrode zone — a white PET-based layer carries the printed electrode geometry and routes the biopotential signal toward the host electronics. Electrode layout, contact material and skin-interface construction are defined for each OEM project.

• Reflective PPG optical zone — a black flexible circuit supports the optical emitter and detector arrangement. Light-management features help define the transmit and receive paths while reducing direct optical crosstalk.

• Host-system interface — a compact connector links the composite sensor to the customer’s electronics. Pin definition, signal conditioning, sampling and communication remain project-specific.

Haec separatio magni momenti est. Performantia EEG pendet a contactu inter electrodum et cutem, a controllo rumoris et a captione signali differentialis; dum performantia PPG pendet ab accoplatione optica, a reiectione lucis ambientis, a controllo motus et a praeselecto analogico front-end.

Fabricatio hibrida: electrodia impressa conveniunt cum confectione optica FPC.

Fabricatio huius platformae requirit processum hibridum, non unam technologiam circuitus. Pars EEG incipit a praeparatione flexibilis pelliculae, a processu conductoris impressi et a definitione schematis electrode. Pars PPG utitur confectione flexibilis circuitus pro componentibus opticis et interconnectionibus adiunctis. Ambae partes conveniunt in momentis allignment et laminandi.

• Praeparatio pelliculae PET et tractatio superficiei;

• Impressio et curatio schematis conductivi EEG;

• Confectio et inspectio circuitus flexibilis optici;

• Examinatio continuitatis et functionis opticae;

• registrata laminatio stratis electrode, optici et adhesivi;

• sectio per formam, integratio connectoris et inspectio finalis visualis.

Imago infra propter usum publicum ex professo est purgata. Referentiae circuitus, identificatores interni et minuta informatione de tractibus sunt diminutae ut informationes designis specificis projecti protegantur, dum narratio fabricationis servatur.

Ab assemblage circuitus flexibilis optici ad integrationem bimodalem registratam.

Prioritates ingeniariae pro developeris dispositivorum finitorum

Quia platforma est componentis OEM, limites performance significativi cum systemate completo clientis statuendi sunt. Praecipuae prioritates developmentis includunt:

The visible connector form is a mechanical interface only. It does not imply a standard USB protocol. Electrical pinout and communication are defined with the OEM host system.

VMANX presents the optical channel as a reflective PPG waveform and oxygenation-trend development path. Specific SpO₂ or regional cerebral oxygen-saturation accuracy is not claimed at the component level; such performance depends on the complete optical stack, electronics, calibration, algorithm and clinical validation.

Application-oriented development

The shared forehead format is relevant to several development contexts where low-profile, synchronized waveform acquisition may be valuable:

• Intensive care — continuous electrical and optical trend acquisition at the bedside;

• Operating room — a consolidated pre-use placement workflow for anaesthesia-monitoring system development;

• Sleep laboratory — long-duration forehead sensing for overnight multimodal studies;

• Neurology and recovery — synchronized electrical and pulsatile optical waveforms in step-down or ambulatory research workflows.

These images illustrate potential workflow contexts rather than approved clinical indications. Final intended use, patient population and performance claims must be established by the finished-device manufacturer.

Illustrative workflow concepts; not approved clinical indications.

OEM development scope

VMANX supports project-specific development around:

• EEG electrode count, spacing and reference location;

• dispositio emittentis et detectoris optici et geometria isolationis lucis;

• configuratio strati PET et circuitus flexibilis;

• selectio adhaesivi aut gel pro contactu cum cute;

• longitudo flexilis, zonae flectionis et designum mitigationis tensionis;

• definitio pinum connectoris et congruentia cum systemate hospite;

• planificatio inspectionis, tracciabilitas et documentatio experimentorum projecti.

Development est administratus intra quadrum qualitatis medicinae VMANX. Materialia contactans cum patiente possunt aestimari secundum planum ISO 10993 applicabile, dum documenta RoHS et REACH parari possunt pro configuratione materialis divulgata.

A platforma componentium ad dispositivum medicinale validatum

Valor ingenierilis sensus multimodalis non creatur ponendo duas technologias adiacenter. Oritur ex controllo strati mechanici, condicionum contactus, geometriae opticae, viarum signali et synchronisationis in parte hospitis ut unum problema developmentis.

VMANX ponit hanc flexibilem EEG + reflexivam PPG platformam ut punctum initiale OEM pro turmis quae interface frontale compactum necesse habent et quae vellent integrativam mechanicam difficultatem minuere sine confusione inter facultatem componentis et praestantiam dispositivi perfecti.