Encephalic physiological parameter collecting device and application

Abstract

The invention relates to an encephalic physiological parameter collecting device and an application. The collecting device comprises a base body with the insertion end as the front end, and the base body extends in the length direction. Detection windows of sensing units used for detecting physiological parameters are arranged at intervals on the outer lateral side in the length direction from the front end backwards. The sensing units for detecting the chemical substance parameters are connected to an excitation light source through light transmission structures. The detection windows are covered with fluorescence structures corresponding to the excitation light source respectively and connected to a signal processing unit through independent signal transmitting structures. By means of the encephalic physiological parameter collecting device and the application, the multiple encephalic physiological parameters can be collected at the same time, more timely, more accurate and more abundant reference data can be provided, and more reliable bases and more reliable supports can be provided for clinic treating and curing work.

Description

technical field [0001] The invention relates to a collection device for medical physiological data and the application of the collection device, specifically an intracranial physiological parameter collection device and application. Background technique [0002] Severe craniocerebral injury is one of the common emergencies in neurosurgery, with a high mortality and disability rate. After craniocerebral injury, contusion, stress response or hemorrhage of brain tissue lead to vasospasm, embolism, compression stenosis or microcirculation damage, causing abnormal metabolism and secretion of brain tissue (such as ischemia and hypoxia, abnormal secretion of cerebrospinal fluid, etc.), cerebral The blockage of effusion circulation or the accumulation of various harmful components such as carbon dioxide and lactic acid can cause brain tissue edema or increased effusion, leading to increased intracranial pressure, which will further lead to abnormal metabolism and secretion of brain ...

AI Technical Summary

Problems solved by technology

The problems in this way are: 1. The excitation light needs to be able to excite two fluorescent substances at the same time, the wavelength range may be wide, and there may be mutual interference between the fluorescence generated at the same time. For intracranial metabolism that requires precise monitoring, such a structure It will lead to inaccurate monitoring data and extremely complex bougies or signal analysis devices; 2. The tip coated with fluorescent substances is not effectively protected and is easily damaged during the puncture process

The disadvantages of this patent: 1. Fluorescent substances are placed in the cavity, the excitation light needs to enter the cavity from the optical fiber, and the fluorescence needs to return from the cavity to the optical fiber; since the cavity and the optical fiber are two different media, the light in different substances The refractive index in the fiber is different, when the fluorescence propagates from the cavity to the fiber, most of the fluorescence is reflected back to the cavity

Such a design cannot maximize the feedback of the generated fluorescence back to the optical fiber, making the return signal weak, and it is not suitable to distinguish between signal noise and signal

2. The substance to be tested needs to pass through the selective permeable membrane on the side of the cavity to enter the cavity. The concentration of the substance to be tested inside and outside the cavity is not exactly the same, and the concentration of the substance to be tested in the cavity will change later than outside the cavity. Concentration changes, resulting in inaccurate and delayed monitoring data

3. The patent does not give a clear design method for the pressure sensor, and the existing technology cannot obtain a high-sensitivity fluorescent pressure sensor

[0011] Therefore, the existing various devices cannot meet the monitoring requirements for the intracranial conditions of patients with severe traumatic brain injury, including minimally invasive, safe, multi-parameter, high sensitivity, etc.

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