Intrasubcutaneous tissue sensor device with controllable implantation angle

Abstract

The invention discloses a sensor device capable of controlling insertion angle in subcutaneous tissue, the sensor device comprises a fixing base and an inserting base provided with a hard needle tubing through hole and rotatably connected to the fixing base. The sensor device capable of controlling insertion angle in subcutaneous tissue has the advantages that it is convenient to insert the insertion type biosensor into the subcutaneous tissue and adjust the insertion angle of the insertion type biosensor in the skin tissue, so that the insertion type biosensor can have longer effective length in the subcutaneous tissue; the measured data is more accurate and near to the actual data.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a sensor device in subcutaneous tissue that can control the implantation angle and is used when the implantable biosensor is quickly implanted into the skin. Background technique [0002] The diagnosis and treatment of many diseases need to obtain continuous physiological parameters, such as body temperature, heart rate, blood pressure, blood oxygen, blood sugar, etc. Among these parameters, some parameters can be directly measured by physical methods, such as temperature and heart rate, which can be measured in vitro at any time; but some parameters cannot be obtained from in vitro measurements. For example, diabetic patients need to monitor blood sugar. The method of measuring interstitial fluid is a continuous monitoring method available in reality. Its advantage is that it does not need to continuously collect blood or implant sensors into blood vessels. As a daily de...

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Problems solved by technology

The current technology still cannot provide an effective method for measuring blood sugar in interstitial fluid. Therefore, it is a transitional way to calibrate the interstitial fluid sensor with the measurement results of a finger blood glucose meter, which also limits the further promotion and application of subcutaneous dynamic monitoring products. In addition, known The subcutaneous sensor technology is implanted transdermally at a fixed angle. The hard sensor is either perpendicular to the skin at a 90-degree right angle, or inclined to the skin at an oblique angle, and is in contact with the tissue layer by passing through the subcutaneous tissue layer. Its inherent disadvantage is that only a limited length or area contacts the subcutaneous tissue layer, which is not conducive to obtaining high signal-to-noise ratio and background elimination

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