ITRM20090101A1 - AUTOMATIC MEASURER OF THE ARTERIAL PRESSURE OF THE 24/28 HOURS FROM ARM - Google Patents

AUTOMATIC MEASURER OF THE ARTERIAL PRESSURE OF THE 24/28 HOURS FROM ARM

Info

Publication number
ITRM20090101A1
ITRM20090101A1 IT000101A ITRM20090101A ITRM20090101A1 IT RM20090101 A1 ITRM20090101 A1 IT RM20090101A1 IT 000101 A IT000101 A IT 000101A IT RM20090101 A ITRM20090101 A IT RM20090101A IT RM20090101 A1 ITRM20090101 A1 IT RM20090101A1
Authority
IT
Italy
Prior art keywords
cuff
arm
blood pressure
elimination
appliance
Prior art date
Application number
IT000101A
Other languages
Italian (it)
Inventor
Gabriella Basile
Francesco Erba
Original Assignee
Gabriella Basile
Francesco Erba
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Gabriella Basile, Francesco Erba filed Critical Gabriella Basile
Priority to IT000101A priority Critical patent/ITRM20090101A1/en
Publication of ITRM20090101A1 publication Critical patent/ITRM20090101A1/en

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/02Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
    • A61B5/021Measuring pressure in heart or blood vessels
    • A61B5/022Measuring pressure in heart or blood vessels by applying pressure to close blood vessels, e.g. against the skin; Ophthalmodynamometers

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Vascular Medicine (AREA)
  • Cardiology (AREA)
  • Biomedical Technology (AREA)
  • Molecular Biology (AREA)
  • Physiology (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Ophthalmology & Optometry (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Physics & Mathematics (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Measuring Fluid Pressure (AREA)
  • Spectrometry And Color Measurement (AREA)

Description

Domanda di brevetto Patent application

Titolo Title

Misuratore automatico da braccio della Pressione Arteriosa delle 24 / 48 ore. Automatic 24/48-hour blood pressure monitor for arm.

Descrizione Description

Il problema di tutti i misuratori ambulatori della P.A. detti comunemente ABPM ( Automatic Blood Pressure Meter ) è quello delle relativamente grandi dimensioni, della rumorosità e del dovere tenere separati l’apparecchio vero e proprio, contenente i circuiti elettronici e pneumatici, dal bracciale di rilevamento della Pressione Arteriosa. Il collegamento pneumatico apparecchio - bracciale è effettuato da un tubo semirigido che crea fastidio al paziente ed introduce un’attenuazione del segnale oscillometrico in tutti gli apparecchi per la misura della Pressione Arteriosa che utilizzano il sistema oscillometrico. Tale sistema richiede inoltre bracciali standardizzati di grandi dimensioni ( rapportate alle dimensioni del braccio ) che, per il gonfiaggio, necessitano di pompe potenti e veloci ( grandi e rumorose ). The problem with all the outpatient meters of the P.A. commonly known as ABPM (Automatic Blood Pressure Meter) is that of the relatively large size, the noise level and the need to keep the actual device, containing the electronic and pneumatic circuits, separate from the blood pressure detection bracelet. The pneumatic connection between the device and the cuff is carried out by a semi-rigid tube that creates discomfort for the patient and introduces an attenuation of the oscillometric signal in all devices for measuring blood pressure that use the oscillometric system. This system also requires large standardized cuffs (in relation to the size of the arm) which, for inflation, require powerful and fast pumps (large and noisy).

Esistono in commercio apparecchi per la misura della Pressione Arteriosa da polso che integrano l’apparecchio ed il bracciale ma che sono ritenuti dalla classe medica specialistica poco attendibili. There are devices on the market for measuring wrist blood pressure that integrate the device and the bracelet but which are considered unreliable by the specialist medical class.

L’uso del sistema oscillometrico, attualmente utilizzato dal 100% dei produttori di ABPM, rende praticamente non realizzabile un apparecchio integrato da braccio per la misura della Pressione Arteriosa. The use of the oscillometric system, currently used by 100% of ABPM manufacturers, makes an integrated arm device for measuring blood pressure practically not feasible.

Il sistema proposto utilizza per la misura della Pressione Arteriosa il sistema impedenziometrico. The proposed system uses the impedance system to measure blood pressure.

In pratica, in una piccola sezione del braccio, si misura l’impedenza che viene modulata dal flusso sanguigno all’ interno delle arterie. In practice, in a small section of the arm, the impedance is measured, which is modulated by the blood flow inside the arteries.

Poiché il flusso è pulsante si registra una curva pulsatoria di ampiezza proporzionale al flusso nelle arterie sottostanti gli elettrodi, posizionati nel bracciale. Since the flow is pulsating, there is a pulsatory curve of amplitude proportional to the flow in the arteries underlying the electrodes, positioned in the cuff.

Applicando un bracciale nella parte superiore del braccio e gonfiandolo si blocca e si modifica, in rapporto alla pressione esercitata, il flusso arterioso e quindi la forma e l’ampiezza della curva pulsatoria registrata. Applying a cuff to the upper arm and inflating it blocks and changes, in relation to the pressure exerted, the arterial flow and therefore the shape and width of the pulsation curve recorded.

In particolare il flusso sanguigno viene annullato quando la pressione nel bracciale raggiunge e supera la pressione sistolica e, man mano che la pressione nel bracciale viene ridotta, prima inizia e quindi si incrementa il flusso arterioso fino a quando l’azione del bracciale non esercita più alcun freno al flusso sanguigno. In particular, the blood flow is canceled when the pressure in the cuff reaches and exceeds the systolic pressure and, as the pressure in the cuff is reduced, it first begins and then increases the arterial flow until the action of the cuff no longer exerts no restraint on blood flow.

Supponendo di gonfiare il bracciale ad una pressione leggermente superiore a quella Sistolica e di sgonfiarlo con un decremento pressorio costante, la curva pulsatoria inizierà ad essere registrata nel momento in cui la pressione nel bracciale scenderà, al di sotto di quella Sistolica ed incrementerà ampiezza e durata degli impulsi fmo a quando non si raggiungerà la pressione Diastolica. Da questa condizione in poi, non esistendo più costrizione dei vasi arteriosi, la curva pulsatoria manterrà lo stesso aspetto per quanto riguarda ampiezza e durata degli impulsi.(Tavola n. 2 ) Assuming to inflate the cuff to a pressure slightly higher than the Systolic pressure and to deflate it with a constant pressure decrease, the pulsation curve will start to be registered when the pressure in the cuff drops, below the Systolic one and will increase amplitude and duration. of pulses until Diastolic pressure is reached. From this condition on, since there is no longer any constriction of the arterial vessels, the pulsatory curve will maintain the same aspect as regards the amplitude and duration of the impulses. (Table n. 2)

Trattandosi di misura di impedenza questa non è dipendente dalle dimensioni del manicotto gonfiabile posto all’ interno del bracciale. Since this is an impedance measurement, this is not dependent on the size of the inflatable sleeve placed inside the bracelet.

Poiché il manicotto gonfiabile ha dimensioni molto minori di quello inserito in un manicotto standard per la misura della Pressione Arteriosa, la pompa ha dimensioni inferiori, l’alimentazione dell’intero apparecchia richiede pile di minor energia e quindi più piccole, l’apparecchio assume perciò dimensioni ridotte, tali da renderlo applicabile sul bracciale stesso che, in questo caso, ha le dimensioni di un bracciale standard ma porta al suo interno un manicotto gonfiabile di dimensioni ridotte e due fasce conduttrici per la rilevazione del segnale impedenziometrico. La Tavola n.l fornisce uno schema a blocchi dell’apparecchio. Since the inflatable cuff is much smaller than the one inserted in a standard cuff for measuring blood pressure, the pump has smaller dimensions, the power supply of the entire device requires batteries of lesser energy and therefore smaller, the device therefore assumes reduced dimensions, such as to make it applicable on the bracelet itself which, in this case, has the dimensions of a standard bracelet but carries a small inflatable sleeve and two conductive bands for the detection of the impedance signal. Table 1 provides a block diagram of the device.

Claims (1)

Domanda di brevetto Titolo Misuratore automatico da braccio della Pressione Arteriosa delle 24 / 48 ore. Rivendicazioni Parti innovative del prodotto sono: • Integrazione in un unico dispositivo di misura della Pressione Arteriosa sul braccio, l’apparecchio vero e proprio, contenente la parte pneumatica e l’elettronica, ed il bracciale. • Eliminazione del tubo di collegamento apparecchio - bracciale. • Eliminazione dell’attenuazione dovuta al volume di aria comprimibile nel tubo di collegamento apparecchio-bracciale. • Bracciale con fascia gonfiabile di ridotte dimensioni richiedente una pompa più piccola di quelle utilizzate negli apparecchi di misura standard. • Uso di pile di dimensioni e capacità ridotte essendo diminuito l’assorbimento di energia da parte dell’intero apparecchio. ® Effettuazione della misura della Pressione Arteriosa misurando le variazioni d’impedenza, prodotte dal flusso sanguigno, su due elettrodi posti sul bracciale.Patent application Title Automatic 24/48-hour blood pressure monitor for arm. Claims Innovative parts of the product are: • Integration in a single blood pressure measuring device on the arm, the actual device, containing the pneumatic part and the electronics, and the cuff. • Elimination of the tube connecting the appliance to the cuff. • Elimination of attenuation due to the volume of compressible air in the appliance-cuff connection tube. • Bracelet with small size inflatable band requiring a smaller pump than those used in standard measuring devices. • Use of batteries of reduced size and capacity as the absorption of energy by the entire device has decreased. ® Measurement of blood pressure by measuring the impedance variations produced by the blood flow on two electrodes placed on the cuff.
IT000101A 2009-03-06 2009-03-06 AUTOMATIC MEASURER OF THE ARTERIAL PRESSURE OF THE 24/28 HOURS FROM ARM ITRM20090101A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
IT000101A ITRM20090101A1 (en) 2009-03-06 2009-03-06 AUTOMATIC MEASURER OF THE ARTERIAL PRESSURE OF THE 24/28 HOURS FROM ARM

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT000101A ITRM20090101A1 (en) 2009-03-06 2009-03-06 AUTOMATIC MEASURER OF THE ARTERIAL PRESSURE OF THE 24/28 HOURS FROM ARM

Publications (1)

Publication Number Publication Date
ITRM20090101A1 true ITRM20090101A1 (en) 2009-06-05

Family

ID=42342700

Family Applications (1)

Application Number Title Priority Date Filing Date
IT000101A ITRM20090101A1 (en) 2009-03-06 2009-03-06 AUTOMATIC MEASURER OF THE ARTERIAL PRESSURE OF THE 24/28 HOURS FROM ARM

Country Status (1)

Country Link
IT (1) ITRM20090101A1 (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4378807A (en) * 1980-12-03 1983-04-05 Clinical Data, Inc. Blood pressure measurement apparatus
EP0456844A1 (en) * 1990-01-19 1991-11-21 Nihon Kohden Corporation Non-invasive automatic blood pressure measuring apparatus
JPH0415036A (en) * 1990-05-08 1992-01-20 Iryo Kogaku Kenkyusho:Kk Blood pressure measuring device
DE9108754U1 (en) * 1991-07-16 1992-09-17 Vectron Gesellschaft Fuer Technologieentwicklung Und Systemforschung Mbh, 8133 Feldafing, De
US5368039A (en) * 1993-07-26 1994-11-29 Moses; John A. Method and apparatus for determining blood pressure
WO2006114157A2 (en) * 2005-04-28 2006-11-02 Kaz Europe Sa Sphygmomanometer

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4378807A (en) * 1980-12-03 1983-04-05 Clinical Data, Inc. Blood pressure measurement apparatus
EP0456844A1 (en) * 1990-01-19 1991-11-21 Nihon Kohden Corporation Non-invasive automatic blood pressure measuring apparatus
JPH0415036A (en) * 1990-05-08 1992-01-20 Iryo Kogaku Kenkyusho:Kk Blood pressure measuring device
DE9108754U1 (en) * 1991-07-16 1992-09-17 Vectron Gesellschaft Fuer Technologieentwicklung Und Systemforschung Mbh, 8133 Feldafing, De
US5368039A (en) * 1993-07-26 1994-11-29 Moses; John A. Method and apparatus for determining blood pressure
WO2006114157A2 (en) * 2005-04-28 2006-11-02 Kaz Europe Sa Sphygmomanometer

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