Domestic replacement at | Smart Sensor "invasive blood pressure sensor" mass supply
Release time:
2023-10-27
Source:
There are usually two ways to monitor blood pressure in clinical medicine, one is non-invasive blood pressure monitoring, such as the wrist-type or arm-type electronic blood pressure monitor we see in our daily life, which uses non-invasive cuff oscillation technology, and the other is invasive blood pressure monitoring, which is often used in clinical surgery, which can realize intuitive and rapid dynamic monitoring of patients' blood pressure. The core of invasive blood pressure monitoring technology is a piezoresistive pressure sensor - Smart Sensor ZXP4 series invasive blood pressure sensor.
High-quality production to achieve localized substitution
The invasive blood pressure sensor uses the silicon piezoresistive principle and consists of a force-sensitive element mounted on a ceramic substrate with circuitry on the substrate for compensation and calibration. The clever design of the plastic cap, medical gel and ceramic substrate not only protects the force-sensitive element from damage, but also makes it easy for the customer to install and use on the system, and most importantly, it is designed to meet the requirements of AAMI for blood pressure monitors (AAMI: Association for the Development of Medical Instruments).
Compared with the traditional strain gauge pressure sensor, Smart Sensor's aggressive blood pressure sensor has obvious advantages in sensitivity, linearity, output accuracy, overload and other aspects.
Performance parameters
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Pressure range: -50~300mmHg
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Operating temperature : +15°C~+40°C
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Sensitivity: 5μV/V/Mahag
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Input impedance: 1200Ω~3200Ω
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Output impedance: 285Ω~315Ω
In addition, with their industry-leading product performance, invasive blood pressure sensors can play an important role in a variety of medical device applications such as disposable invasive blood pressure monitoring, infusion pumps, and kidney dialysis devices.
Smart Sensor combines core technology with market application to create a mature, reliable, high-quality, high-performance MEMS pressure sensor, which has provided products and solutions for many industry leaders, realizing localized substitution in a real sense, and has been widely praised by customers.
Accurate and sensitive, helping invasive blood pressure monitoring applications
Taking the disposable invasive blood pressure monitoring application scheme as an example, as the core hardware, the invasive blood pressure sensor can be applied to a variety of disposable invasive blood pressure sensors, which can realize the monitoring of arterial pressure, venous pressure, pulmonary artery pressure, left coronary artery pressure and other pressures.
So, how does it work to communicate a patient's blood pressure fluctuations?
In fact, measuring blood pressure is actually measuring the pressure difference, that is, the difference between the pressure of the blood and the atmospheric pressure. Disposable invasive blood pressure sensors do not come into direct contact with the blood, but are measured indirectly by the normal saline pressure in the tubing.
When the liquid flows through the sensor, the piezoresistive principle is used to convert the patient's blood pressure into an electrical signal, which is connected to the monitor using a disposable cable and displayed through the monitor signal conditioning, so as to realize real-time and continuous monitoring of blood pressure.
The advantages of this invasive blood pressure monitoring technology are that it is sensitive, accurate, stable, and can automatically and continuously monitor changes in blood pressure, which is suitable for multiple clinical departments, such as anesthesiology, ICU, cardiology, catheterization laboratory, etc., with clinical treatment and nursing, it has very important clinical value.
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Beijing Zhixin Sensor Technology Co., Ltd.
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