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Ambulatory Blood Pressure >> 1805

Model:CB-1805-B

Artery pulsation waveform¡ªA true record & replay measurement process

BIOX considers the method of obtaining data as important as the results. We are the leader in introducing artery pulsation waveform into the ABP arena. We not only provide the tabulated numerical data results of each BP readings for 24 hours, but also show the true artery pulsation waveform during the testing process. We bring review analysis to the ABPM industry.


Figure titles

1.Reviewable artery pulsation waveform & tabulated numerical data results

2.Blood pressure frequency histograms

3.Blood pressure & pulse rate trends

Feature


Reviewable analysis techniques to obtain BP measurement
Artifact is unavoidable in ABP testing. Fortunately, there is a way to eliminate artifact, which is by utilizing the BIOX approach to ABPM analysis. Without utilizing BIOX technology, physicians have to interpret tabulated numerical data. Determining valid data from artifact can be difficult to distinguish. Unfortunately, traditional ABPM systems use technology that cannot properly distinguish artifact from true wave-form. However, the BIOX ABP monitor validates each measurement readings completely transparent, and its real-time testing is combined with review analysis. Physicians can determine instantly whether the data is true or false according to the original artery pulsation waveform. Our ABPM effectively screens errors and detects artifact, thus determining real blood pressure statistics to ensure an effective credible report.

Versatility and durability
rewards you in the long run Highly integrated design saves space and ultimately improves the performance and reliability, adding to the recorder's durability and impact and shock-resistance. Specially-designed pressure security system will not allow overpressure or air deflation failure. Automatically monitors battery life and automatically stopping in the event of voltage insufficiency. Patient account information can be loaded into the recorder in advance avoiding possible mistakes, an appealing feature for multiple recorder facilities. BIOX presents products with infinite upgrading potential, thus ensuring future software and hardware upgrading at inimum cost.

Widen dynamic range
The degree of the artery pulsation signals differs greatly in patients. The strongest signal may be more than 10 times that of the weakest. This is a main reason that can cause failure with virtually all automatic testing of blood pressure. Our introduction of advanced AGC (auto-gain-control) technology and components with a large dynamic range, which automatically adjusts to the variation of the patients' pulsation signal range.

Highly intellectualized airflow control
For correct blood pressure analysis, a system must take in account that the pressure of the inflated cuff on the designated site be slightly higher than the systolic blood pressure. The self-fluctuation of the human body's BP makes practical systolic blood pressure value relatively hard to accurately estimate. The traditional testing method offered one-time detection of systolic blood pressure using 40-60mmHg as a standard for the inflated component. However, this method has two obvious deficiencies: overpressure on the inflated object and long inflation time. These two deficiencies make it difficult to achieve accurate results while also being uncomfortable on patients. The result of BP fluctuation and the inaccuracies of former systolic blood pressure systems are common due to flawed techniques used to obtain systolic blood pressure.Eventually such methods fail and then re-inflation incurs to re-test. BIOX ABPM automatically identifies the artery pulsation during the inflation process, inflating while pre-measuring, so it inflates to the proper pressure. The unique function of  automatic air inflation maximizes at 90mmHg, accurately compensating any sudden increase of blood pressure. The other important factor that influences the accuracy of BP testing is the deflation speed. Improper inflation and deflation speeds produce in-accuracy. The more rapid the deflation, the less accurate are the results. If the deflation speed is too slow, the testing time will be prolonged, thus the patient can experience significant discomfort which can affect the results due to the increased stimulus. The traditional BP devices utilizes mechanical non-linear deflation components, while deflation speed is permanently set without adjustability, this effects the inflation and deflation speed, especially for obese patients or patients with larger appendages (it is common for testing to be extended in these circumstances adding minutes to the analysis, again causing additional discomfort). For patients with smaller appendages the deflation speed is often too fast (it is common in these circumstances for the deflation process to be under 10 seconds, this method produces obvious
in-accurate results). The BIOX technology, integrates multiple control techniques, liquid control and pattern recognition during the analysis processing, thus extruding accurate results. BIOX ABPM introduces precise digital valve and advanced digital speed control technology to identify linear smooth deflation. This technology intellectually identifies the arm size and the blood pressure of the patient. The deflation speed is constantly controlled on any patient, so the accuracy is
increased significantly during the linear speed deflation process. The process completely imitates the auscultation process of physicians, achieving accurate results from the data gathering process.

Quick and accurate analyzing system
Highly integrated design saves space and ultimately improves the performance and reliability, adding to the recorder's urability and impact and shock-resistance. Specially-designed pressure security system will not allow overpressure or air deflation failure. Automatically monitors battery life and automatically stopping in the event of voltage insufficiency.
Patient account information can be loaded into the recorder in advance avoiding possible mistakes, an appealing feature for multiple recorder facilities. BIOX presents products with infinite upgrading potential, thus ensuring future software and hardware upgrading at minimum cost.


Specification
Duration of blood pressure monitoring 24 hours
Method of measurement Oscillometric method
Storage medium Flash memory
Indicating range 0 ~ 300 mmHg
Range of blood pressure
Systolic 50 ~ 260 mmHg
  Diastolic30 ~ 180 mmHg
Pressure precision 3 mmHg
Range of pulse 30 ~ 250 bpm
Communication port Wireless infrared data transfer
Batteries 2 x AA size alkaline batteries
Dimensions 95 x73 x 31 (mm3)
Weight 150 g (excluding batteries)
PC minimum requirements Pentium III 500MHz or higher
  1024 x 768 resolution
System requirements  Windows 9x/2000/XP/VISTA

The limitation in the traditional ABPM

Ambulatory Blood Pressure Monitor (ABPM) has been widely used in clinic diagnosis. The accuracy of measuring result of Ambulatory Blood Pressure (ABP) is the most important. The influence of accuracy in measuring result has two primary factors: one is the accuracy of the recorder itself and the other one is the condition during every testing, it means artifact factor. The measuring accuracy of recorder itself is responsible for the manufacturer and it could be distinguished through some method. For example, it is very easy to compare with mercury sphygmomanometer. But the artifact is unable vanish thoroughly. ABP testing is much different with clinic blood pressure testing that we can¡¯t control the condition during every testing, and we also can¡¯t distinguish the artifact. It is the only way to emphasize the patient that they should keep unmovable and relax their cuffed arm from inflating until deflated all over, and to emphasize the patient should avoid oppress the cuff during sleeping to reduce the artifact and the invalid readings as far as possible.

The readings list is the most important and the indispensable part in an ABPM report, even though the varied formats of the report from different brand. The accuracy of the ABPM report is totally based on the accuracy of every line in this readings list. Any statistics graph or table in the report comes from these data.

Due to the traditional ABPM just record the numeric readings only, when the artifact and error measurement was happened, it is difficult for doctor to confirm whether the readings are right or wrong in a series of data. How the doctors could do when they face to the list? Any edit is un-objectivity and comes from them ¡®feeling so¡¯. It is also existence a big flaw in almost all other brands of ABPM.

In what way to distinguish the invalid examination and reject thereby enhance the accuracy of the final report? That is the technology of ambulatory blood pressure test with artery pulsation waveform.


The technology of ambulatory blood pressure test with artery pulsation waveform

It is as similar as the auscultation method (Korotkoff-sound method) that the classical oscillometric method is also to block the upper arm¡¯s artery fully through the cuff then deflating slowly and smoothly. The shapes of the blood vessel in this deflating process could be divided into three phases: keep blocked in the whole cardiac cycle; alternate from close to open in every cardiac cycle; unblocked at all time. This process could be felt and recorded as a waveform, the artery pulsation waveform.

The waveform is a trace of the pressure variation and pulse vibration during the deflation. Every peak in the waveform corresponds to a pulse. The peak height responds the deformation size of blood vessel, it similar as the intensity of Korotkoff-Sound in auscultation. The peak height is from lower to higher and then lower again, like the Korotkoff-Sound¡¯s change. The highest position of the envelope curve is mean pressure, and around two turning points separately correspond to the systolic pressure and the diastolic pressure.

Therefore, if recording the pulse vibration waveform, we can not only figure out the blood pressure real time, but also we can review the process of blood pressure testing at any time late. According to the artery pulsation waveform, we can delete the readings form serious artifact, re-analysis once more with manual intervention and revert to the true readings when the waveform is not too serious artifact. Finally, all readings left in the report are objective, confirmed, and true.

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