A device for detecting cerebral hematoma and cerebral edema
A cerebral edema and cerebral hematoma technology, which is applied in the cerebral edema detection device and the field of cerebral hematoma, can solve the problems of missed treatment and achieve the effect of low cost and high detection accuracy
Inactive Publication Date: 2018-12-21
CHONGQING UNIV
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[0007] In addition, stroke is divided into hemorrhagic stroke and ischemic stroke. The treatment methods for hemorrhagic stroke and ischemic stroke are completely opposite. At present, patients can only be treated after cerebral hemorrhage is ruled out after CT or MRI examination. Patients should be treated accordingly, so it is easy to miss the golden period of treatment
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[0028] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
[0029] The invention provides a device for detecting cerebral hematoma and cerebral edema, which is used for detecting the dielectric constant of a measured object. The device is composed of a microwave frequency sweep signal source, a sensor, a detector and a parameter analysis system. The coaxial-coupling cylindrical waveguide is designed as the sensor part. The large-sized cylindrical waveguide can cover the whole brain. Even if the microwave signal is scattered in the hematoma and edema, it can be fully detected by the sensor. A matching medium is filled between the brain and the waveguide to reduce the reflection of microwaves between the brain tissue and the air interface. Microwaves are coupled into the waveguide through the coaxial line and resonate in the waveguide. When the hematoma or edema in the brain changes, the resonance fre...
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The invention relates to a device for detecting cephalophyma and encephaledema. The device comprises a microwave swept-frequency signal generator, a sensor, a detector and a parameter analysis system, wherein the microwave swept-frequency signal generator is used for generating a microwave swept-frequency signal; the sensor comprises two coaxial lines and a cylindrical waveguide with two ends open; the swept-frequency signal can enter the waveguide through coupling of one coaxial line, then resonates in the waveguide and is received by the other coaxial line; the detector is used for converting the received microwave swept-frequency signal into an electric signal and amplifying the electric signal; the parameter analysis system calculates the dielectric constant value and the electric conductivity of a brain and evaluates the condition of cephalophyma and encephaledema according to the detected dielectric constant value and the electric conductivity of the brain and the change rate of parameters. The device can be used for continuously monitoring the condition of cephalophyma and encephaledema, distinguishes hemorrhagic stroke from ischemic stroke and has the characteristics that no trauma is caused, the detection precision is high, a warning is sent to a patient with the disease worsened quickly in advance and the like.
Description
technical field [0001] The invention belongs to the technical field of medical devices, and relates to a device for detecting cerebral hematoma and cerebral edema. Background technique [0002] In clinical medicine, cerebral hemorrhage and cerebral edema are both domestic and foreign brain diseases with high morbidity and mortality. There are many reasons for cerebral hemorrhage, including high blood pressure, cerebrovascular malformation, and traumatic brain injury. Spontaneous cerebral hemorrhage is one of the main diseases that threaten the health of middle-aged and elderly people. With the aging of the population, cerebral hemorrhage is more explosive. In patients with cerebral hemorrhage, hematoma expansion and rebleeding are common clinical situations. If the amount of bleeding is too large or the bleeding speed is too fast, it is easy to cause irreversible serious damage to the brain, or even death. Cerebral edema is a brain disease characterized by increased water ...
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IPC IPC(8): A61B5/05A61B5/00
CPCA61B5/0507A61B5/4064A61B5/6893A61B5/72
Inventor 蒋宇皓杨力巨阳
Owner CHONGQING UNIV