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FSR Sensor pro Medicinalis Vis Monitoring | VMANX
VMANX, an ISO 13485-certified printed electronics manufacturer in Dongguan, China, supplies the CPR-FS01 force sensing resistor (documentum VF-CPR99139) — ultra-tenuis FSR sensor sub 0.3 mm crassus qui vim corporalem applicatam convertit in analogicum signum resistentiae pro apparatus medicis curae patientium. Constructus pro OEM medicis qui systemata retroactionis CPR, alarmaniae ex lecto et monitorum rehabilitationis elaborant, hic sensor resolvit amplitudinem pectoris compression depth to 0.1 cm and responds in under 5 ms, because in resuscitation the difference between effective and ineffective compression is measured in centimetres and milliseconds, not in clinical impression.
Why Force Sensing Belongs in Patient Care
Iudicium humanum sub pressione infidum est. Durante arrestu cardiaco, resuscitatores constanter errant in aestimando tam profunditatem quam celeritatem compressionis — premendo nimis subtiliter dum fatigatio crescit, aut aberrando a ritmo directivo sine sensu. Idem caecus locus in cura in statione existit: infermarii non possunt scire patientem e lecto exisse nisi alarma eos monuerit, et therapeutae rehabilitationis non possunt quantificare onus sine instrumentis.
FSR hoc invisibile eventum mechanicum in numerum convertit, quem dispositivum agere potest. Quia elementum sensorium est structura polimerica impressa in pellicula crassa, non in cellula oneris machinata, potest esse minus quam 0.3 mm crassum et flexibile satis ut in compaginatione cum cuscino compressionis, strato suppleto, aut plantari incorporari possit — instrumentans superficiem contactus absque mutatione sensus producti ad patientem.
Caracteres Praecipui & Utilitates
Resolutio Profunditatis Compressionis: 0.1 cm
CPR-FS01 sentit in campo quod a 1.5 cm ad 8.0 cm profunditatis compressionis pertinet, cum resolutione 0.1 cm et accuratia intra ±0.5 cm aut 10%, quod magis valeret. Hoc spatium comprehendit profunditatem adultorum compressionis (5–6 cm), quae ab normis urgentibus praescribitur, cum spatio superfluo utrinque.
Pro fabricante originali (OEM) qui instrumentum pro feedback CPR construit, hoc significat quod sensor potest discernere compressionem 4.5 cm ab alia 5.5 cm — exacta differentia quae inter monitionem «preme fortius» et confirmationem «bona compressio» intercedit.
Responsio sub-5 ms pro velocitate et recuperatione
Tempus responsionis est minus quam 5 ms, adeo celeriter ut profili dynamico uniuscuiusque compressionis singularis capiatur, non modo media quadam forma. Ex hac unda instrumentum potest derivare velocitatem compressionis inter 40 et 160 compressiones per minutum, et verificare contra normam destinatam 100–120 cpm.
Critically, the sensor also detects full release. When compression force returns to a near-zero state, the device can confirm complete chest recoil — the parameter most often missed in real resuscitation, and the one that determines whether the heart refills between compressions.
Ultra-Thin, Laminate-Anywhere Form Factor
Overall thickness is under 0.3 mm with a 12.7 mm diameter circular active area, supplied with an adhesive backing layer and standard pin interface. A 100 cm two-core shielded cable is standard and customisable, with an optional 3-pin JST-style connector for tool-free service.
This form factor is what makes the same sensing platform reusable across products: laminated under a CPR manikin skin, embedded in a compression feedback pad, integrated into a handheld ALS device, or built into a bed-exit mat or pressure-sensing insole.
Extremely Low Power for Battery Devices
Static power consumption is negligible and typical operating current is below 0.5 mA. For a battery-powered handheld feedback device or a wireless bed sensor, the force sensing layer is effectively free in the power budget — the design constraint moves to the radio and display, not to sensing.
100,000-Cycle Mechanical Life
Under conditions simulating standard CPR compressions at 5–6 cm depth and 110 cpm, the sensor withstands more than 100,000 continuous compression cycles with performance degradation held within 10% of initial value. Repeatability is within ±3.0% of full scale. For a training manikin used daily, that endurance is what separates a consumable from a component.
Specificationes Technicae
| Parametrum | Specificatio |
| Modellum | CPR-FS01 (Doc. VF-CPR99139) |
| Principium Sensus | Force sensitive resistor; resistance falls non-linearly with force |
| Structure | Ultra-thin polymer thick-film, flexible |
| Productio | Analog resistive; external signal conditioning required |
| Initial Resistance (no load) | > 10 MΩ |
| Full-Scale Resistance | < 10 kΩ ad fortitudinem maximam |
| Tempus responsionis | < 5 ms |
| Repeatability | ± 3.0% (scala plena) |
| Operativus Current | < 0.5 mA typicum |
| Intervalum Sensus Profunditatis | 1.5 cm ad 8.0 cm aequivalens |
| Accuracy Profunditatis | ± 0.5 cm aut 10%, quod magis est |
| Resolutio Profunditatis | 0.1 cm |
| Fenestra Profunditatis Adpetitae | 5 – 6 cm (directivum adultorum) |
| Intervallo di frequenza | 40 – 160 compressioni al minuto |
| Frequenza obiettivo | 100 – 120 cpm |
| Rilevamento del rimbalzo | Lo stato di forza quasi nullo conferma il rimbalzo completo del torace |
| Area di rilevamento attiva | diametro di 12,7 mm, circolare |
| Crassitudo Totalis | < 0,3 mm |
| Funiculus Conductivus | Schermato a due anime, 100 cm, personalizzabile |
| Conector | Optional 3-pin (JST type) |
| Temperatura operativa | 0 °C ad +50 °C |
| Humiditas Operandi | 10% – 95%, non-condensing |
| Temperatura servandae | −30 °C usque ad +70 °C |
| Vita Mechanica | > 100,000 cycles, degradation ≤ 10% |
| Recommended Load Resistor | 10 kΩ – 100 kΩ (application dependent) |
| Systema Qualitatis | ISO 13485 |
| Compatibilitas biologica | ISO 10993 (patient-contact configurations) |
| Substance Compliance | RoHS 2011/65/EU, REACH |
Typical values. Supplied as an OEM component — whole-device certification is performed by the device manufacturer.
Integration Guidance for Device Manufacturers
Sensor emittit resistentiam variantem, non voltam calibratum. Resistor oneris in serie convertit hanc variationem in voltam utilem; valor resistoris — typice inter 10 kΩ et 100 kΩ — seligendus est secundum ambitum fortium, spatium intrans ADC et sensibilitatem quae applicationi vere opus est. Optima electio determinat utrum curva digitalis totum intervallum converteris occupet an in fractione eius coangustetur.
Ut componentis pro instrumentis electricis medicis, sensor designatus est ut fabricatoribus instrumentorum adiuvet normas implere quas productum finitum eorum satisfacere debet: IEC 60601-1 / EN 60601-1 pro salute basica et functione essentiali, IEC 60601-1-2 pro compatibilitate electromagnetica, et experimenta ambientalia secundum GB/T 14710 aut seriem aequivalentem IEC 60068-2 quae temperaturas altas et bassas, umiditatem calidam, vibrationem, impactionem et transportum complectuntur. Certificatio totius instrumenti manet responsabilitas fabricatoris qui instrumentum finitum in mercatum ponit.
Questiones Frequentissime a Clientibus Propositae
Q: Quid est resistor sensibilis ad vim et quomodo differt ab cellula oneris?
A: FSR est elementum polimericum spissi-filmis impressum, cuius resistentia decrescit non-linealiter dum vis applicata crescit. Dissimilis cellulae oneris cum extensometro machinato, nullum habet corpus metallicum rigidum; ideo potest esse minus quam 0.3 mm crassum et flexibile. Compensatio est quod emittit signum resistivum non-lineale quod postulat condicionationem et calibracionem, non autem emittit signum lineale praecisum — quod aptum est ad applicationes liminis vel profili vim, non ad pensationem gradus laboratorii.
Q: Quam accurata est mensura altitudinis compressionis ex FSR?
A: In intervallo efficaci 1.5–8.0 cm, accuratio est ±0.5 cm aut 10%, quicquid maior est, ad resolutionem 0.1 cm. Haec accuratio consequitur post calibracionem systematis et tractationem algorithmi — sensor praebet signum vim crudum, et algorismus fabricantis dispositivi convertit illud in altitudinem.
Q: Potestne unus sensor amplecti tam altitudinem compressionis quam celeritatem?
A: Yes. Profunditas ex amplitudine signali venit et celeritas ex tempore undae dynamicae. Quia tempus responsionis minus quam 5 ms est, compressiones singulae distinctae manent usque ad 160 cpm; itaque profunditas, celeritas et reculsum ex eodem canali derivantur.
Q: Quae applicationes praeter RCP eandem platformam sensorum utuntur?
A: Eadem plataforma FSR adhibetur ad monitiones exitus e lecto et ad praeventiones casuum patientium, ad monitiones exitus e sedili et ad observationem positionis sedentis, ad rehabilitationem et ad mensurationem pressionis insolearum, necnon ad sensum generalem tactilis fortitudinis. Principium sensus semper idem manet, dum area activa, intervalum fortitudinis et geometria caudae pro applicatione singula configurantur.
Q: Num sensor debet directe cum cute patientis contrectare?
A: Usually not. In most designs it sits beneath a pad, mattress cover, manikin skin or insole, so the covering layer is the patient-contact surface. Where a configuration does involve direct or prolonged skin contact, ISO 10993 biocompatibility applies to the contacting materials and is specified during the OEM design phase.
Q: How long does the sensor last in a training device used every day?
A: Mechanical life exceeds 100,000 compression cycles at 5–6 cm depth and 110 cpm with degradation within 10% of initial value. In practical terms a training manikin can run intensive daily sessions for years before drift approaches that limit.
Q: What certification does the sensor carry?
A: VMANX fabricat sub gestionem qualitatis ISO 13485, cum conformitate ad RoHS 2011/65/EU et REACH pro substantiis, et cum biocompatibilitate ISO 10993 pro configurationibus quae contactum habent cum patientibus. Sensor est componentis OEM; certificatio de securitate electrica et EMC secundum IEC 60601 fit in apparatu finito a fabricante qui eum in mercatum introducit.
Supportus Technicus pro Fabricatione Secundum Specificata Clientis
VMANX sublevat programmatas OEM medicinales ab definitione intervalli virium usque ad liberationem productionis, comprehendens dimensionem areæ activæ, selectionem resistoris oneris, directionem caudæ, electionem connectoris et validationem cycli vitae. Specificatio completa publicatur in Sensor Tactilis CPR flexiforce et Pagina specificatoris sensoris VF-CPR99139 cum latiore resistor Sentientis Vis et portfolium sensorum medicorum quod includit EEG, EMG, SpO2 et producta supervisionis securitatis, omnia super eodem fundamento constructa circuitus Impressi Flexibiles platformam.
Conclusio
Force sensing resistors convert mechanical events—events clinicians can only estimate—into data a device can act upon. At under 0.3 mm thick, consuming less than 0.5 mA, with 0.1 cm depth resolution, sub-5 ms response time, and over 100,000 operational cycles, the CPR-FS01 gives medical OEMs a sensing layer they can laminate onto nearly any patient-contact surface—manufactured under ISO 13485 control to ensure consistent performance across batches.
