CN110179461A - A kind of multi-channel portable Microwave Scanning Brian Imaging device and method - Google Patents

Abstract

The invention relates to a multi-channel portable microwave scanning brain imaging device and method, comprising a curved antenna array matched with the shape of the brain, a skull cover, a ventilation tube, an elastic loading module loaded with coupling liquid that can penetrate microwaves, and a storage coupling A coupling liquid storage module for liquid, a vacuum negative pressure generation module for generating vacuum negative pressure, and a microwave signal processing unit. It includes a microwave transmitting module and a microwave receiving module, each microwave antenna is respectively connected to the microwave signal processing unit, the opening at one end of the ventilation tube is connected to the skull cover and communicates with the cavity of the skull cover, and the ventilation tube is another One end is connected to the vacuum negative pressure generating module, a multi-channel portable microwave scanning brain imaging device and method of the present invention, by setting the ventilation tube and the elastic loading module, the elastic loading module loaded with coupling liquid can be close to the microwave antenna, microwave The signal is less affected, and the imaging effect is good at the same time.

Description

A multi-channel portable microwave scanning brain imaging device and method

technical field

The invention relates to a microwave scanning imaging device and method, in particular to a portable multi-channel microwave scanning imaging device and method for the brain.

Background technique

Stroke is divided into hemorrhagic stroke and ischemic stroke, but the clinical treatment methods of the two types of stroke are mutually exclusive, so the diagnosis of stroke type before treatment is essential. According to European clinical guidelines, 4.5 hours after ischemic stroke is the golden period for thrombolytic therapy, and the earlier the better. However, due to transportation and other reasons, a large number of patients have missed the golden period of thrombolysis when they arrived at the hospital, so that less than 10% of ischemic stroke patients received thrombolysis. Therefore, it is of great significance to develop a portable, fast, and easy-to-operate instrument that can diagnose stroke types before hospitalization.

At present, the examination methods for suspected stroke patients at home and abroad include head CT or MRI, carotid duplex ultrasound scan, cervical Doppler, magnetic resonance angiography, CT angiography, and digital subtraction angiography. The above-mentioned methods are costly to treat, some technical tests take a long time, and the imaging resolution is not high, which can easily delay the best rescue period for stroke, and will cause physical injuries such as blood collection and ionizing radiation during the detection process. Microwave stroke scanning technology has the advantages of low cost, low radiation power, high resolution, fast imaging speed, safety and non-invasiveness, etc. It is a very promising and valuable medical diagnostic method.

Different tissues of the human body have different dielectric properties, so the principle of microwave detection can be applied to the pre-hospital diagnosis of stroke patients, and it can be fast, non-contact, portable and easy to operate, thereby replacing traditional image-aided diagnosis and overcoming its time-consuming , The shortcomings of moving patients in a large range, and strive for short and precious treatment time for patients after the onset of the disease. Currently, microwave stroke scanning techniques can be classified according to the displayed results: microwave stroke imaging techniques and microwave stroke non-imaging techniques. Microwave stroke imaging technology can display the location of a patient's stroke in two or three dimensions, while non-imaging microwave stroke technology only shows the type of stroke.

However, in the microwave stroke imaging technology, there is a certain air gap between the detection antenna and the skull. Because there is a huge difference in dielectric constant between the air and the skull skin tissue, the microwave signal emitted by the detection antenna to the skull will be strongly reflected on the skull skin, while the microwave signal entering the skull will be greatly weakened, thereby affecting the imaging effect. In order to increase the microwave signal entering the skull, the current technology uses an elastic plastic bag to wrap the microwave coupling liquid and place it between the detection antenna and the skull to reduce the reflection of the microwave signal on the skull epidermis, thereby achieving the purpose of improving the imaging effect. However, the current technology needs to use multiple elastic plastic bags wrapped in microwave coupling liquid. At the same time, the elastic plastic bag and the detection antenna are often not in full contact due to human factors, which will affect the reception and emission of microwave signals, thus making the imaging effect worse.

Contents of the invention

The technical problem solved by the present invention is to construct a multi-channel portable microwave scanning brain imaging device and method to overcome the technical problem of poor imaging effect in microwave imaging detection of the head in the prior art.

The technical solution of the present invention is to construct a multi-channel portable microwave scanning brain imaging device, including a curved antenna array matching the shape of the brain, a skull cover, a ventilation tube, and an elastic loading module loaded with coupling liquid that can penetrate microwaves , a coupling liquid storage module for storing coupling liquid, a vacuum negative pressure generating module for generating vacuum negative pressure, and a microwave signal processing unit, the arc antenna array includes a plurality of microwave antennas, and the plurality of microwave antennas are arranged in an arc, and the microwave The signal processing unit includes a microwave transmitting module and a microwave receiving module, each microwave antenna is respectively connected to the microwave signal processing unit, the opening at one end of the ventilation tube is connected to the skull cover and communicates with the skull cover cavity, the The other end of the ventilation pipe is connected to the vacuum negative pressure generating module, and there are multiple ventilation pipes, and the openings of the plurality of ventilation pipes are connected and distributed in multiple areas of the skull mask, and the multiple areas cover the entire The skull cover, the elastic loading module is connected to the coupling liquid storage module, the microwave signal processing unit drives the microwave transmitting module and the microwave receiving module to work, the microwave antenna is connected to the microwave signal processing unit, the The microwave signal processing unit performs imaging processing according to the signal received by the microwave receiving module.

A further technical solution of the present invention is: an air hole is provided on the skull cover, the ventilation tube is connected to the air hole, and the air hole communicates with the ventilation tube and the inner cavity of the skull cover.

A further technical solution of the present invention is: air holes are arranged on the skull cover, the ventilation tube passes through all or part of the air hole, and the air hole communicates with the ventilation tube and the inner cavity of the skull cover.

A further technical solution of the present invention is: the opening of the ventilation pipe is arranged in the gap between the microwave antennas.

A further technical solution of the present invention is: the head cover is further provided with a fixing port for fixing the elastic loading module and for passing through and communicating with the coupling liquid storage module.

A further technical solution of the present invention is: the plurality of microwave antennas switch and work in turn.

A further technical solution of the present invention is: further comprising an image output module, the image output module is connected to the microwave signal processing unit to output images.

The technical scheme of the present invention is: construct a kind of multi-channel portable microwave scanning brain imaging method, comprise the following steps:

Loading coupling fluid: the elastic loading module is loaded with an appropriate amount of coupling fluid, and the elastic loading module is connected to the coupling fluid storage module;

Putting on the skull mask: the skull mask is worn on the head of the person to be scanned;

Laying the elastic loading module: the elastic loading module loaded with coupling fluid is laid between the scanning imager's head and the arc antenna array;

Generating negative pressure: the vacuum negative pressure generating module draws out the air in the inner cavity of the skull mask through the ventilation tube, so that the elastic loading module fits the curved antenna array;

Microwave antenna work: the microwave signal processing unit drives the microwave transmitting module and the microwave receiving module to work, the microwave transmitting module transmits and transmits microwave signals, and the microwave receiving module receives reflected microwave signals;

Working of the microwave signal processing unit: there are multiple microwave antennas connected to the microwave signal processing unit to form multiple channels, and the microwave signal processing unit performs imaging processing according to the signal received by the microwave receiving module.

A further technical solution of the present invention is: the plurality of microwave antennas switch and work in turn.

A further technical solution of the present invention is: further comprising outputting images of head imaging.

The technical effect of the present invention is: build a kind of multi-channel portable microwave scanning brain imaging device and method, comprise the arc surface antenna array that cooperates with the shape of the brain, skull cover, ventilation tube, microwave can penetrate the elasticity of loading coupling liquid Loading module, coupling liquid storage module for storing coupling liquid, vacuum negative pressure generating module for generating vacuum negative pressure, and microwave signal processing unit, the arc antenna array includes a plurality of microwave antennas, and the plurality of microwave antennas are arranged in an arc. The microwave signal processing unit includes a microwave transmitting module and a microwave receiving module, each microwave antenna is respectively connected to the microwave signal processing unit, and the opening at one end of the ventilation tube is connected to the skull cover and communicates with the skull cover cavity, The other end of the ventilation tube is connected to the vacuum negative pressure generating module, and there are multiple ventilation tubes, and the openings of the multiple ventilation tubes are connected and distributed in multiple areas of the skull mask, and the multiple areas cover the entire The skull cover, the elastic loading module is connected to the coupling liquid storage module, the microwave signal processing unit drives the microwave transmitting module and the microwave receiving module to work, the microwave antenna is connected to the microwave signal processing unit, The microwave signal processing unit performs imaging processing according to the signal received by the microwave receiving module. The present invention provides a multi-channel portable microwave scanning brain imaging device and method. By arranging the ventilation tube and the elastic loading module, the elastic loading module loaded with coupling fluid can be closely attached to the microwave antenna, the microwave signal is less affected, and the imaging effect is good at the same time.

Description of drawings

Fig. 1 is a structural schematic diagram of the present invention.

Fig. 2 is a schematic diagram of the working state of the structure of the present invention.

Detailed ways

The technical solutions of the present invention will be further described below in conjunction with specific embodiments.

As shown in Fig. 1, the specific embodiment of the present invention is: construct a kind of multi-channel portable microwave scanning brain imaging device, comprise and the shape of the brain is matched with the curved surface antenna array, skull cover 4, ventilation tube 2, microwave energy penetrating A transparent elastic loading module 5 loaded with coupling liquid, a coupling liquid storage module (not shown in the figure) for storing the coupling liquid, a vacuum negative pressure generating module (not shown in the figure) for generating vacuum negative pressure, and a microwave signal processing unit 8 , the arc antenna array includes a plurality of microwave antennas 6 arranged in an arc, the microwave signal processing unit 8 includes a microwave transmitting module and a microwave receiving module, and each microwave antenna 6 is respectively connected to the microwave Signal processing unit 8, the opening at one end of the ventilation tube 2 is connected to the skull cover 4 and communicates with the inner cavity of the skull cover 4, the other end of the ventilation tube 2 is connected to the vacuum negative pressure generating module, and the ventilation tube 2 is connected to the vacuum negative pressure generating module. There are a plurality of trachea 2, and the openings of a plurality of air ducts 2 are connected and distributed in multiple areas of the skull cover 4, and the multiple areas cover the entire skull cover 4, and the elastic loading module 5 is connected to the The coupling liquid storage module, the microwave signal processing unit 8 drives the microwave transmitting module and the microwave receiving module to work, the microwave antenna 6 is connected to the microwave signal processing unit 8, and the microwave signal processing unit 8 according to the The signal received by the microwave receiving module is processed by imaging.

As shown in Figure 1, the specific implementation process of the present invention is: the elastic loading module 5 is loaded with an appropriate amount of coupling fluid, the elastic loading module 5 is connected to the coupling fluid storage module through the infusion pipeline 3, and the skull cover 4 is worn on the On the imager's head, the elastic loading module 5 loaded with coupling liquid is laid between the scanning imager's head and the arc antenna array. As shown in Figure 2, the vacuum negative pressure generating module extracts the air in the inner cavity of the skull cover 4 through the ventilation tube 2, so that the elastic loading module 5 fits the arc antenna array, and each microwave antenna 6 The microwave signal processing unit 8 is respectively connected to the microwave signal processing unit 8 through the microwave signal line 1, and the microwave signal processing unit 8 drives the microwave transmitting module and the microwave receiving module to work, the microwave transmitting module transmits and transmits microwave signals, and the microwave receiving module The module receives reflected microwave signals. There are multiple microwave antennas 6, and multiple microwave antennas 6 are connected to the microwave signal processing unit 8 to form multiple channels. The signal is subjected to imaging processing, and an image output module is also included, and the image output module is connected to the microwave signal processing unit 8 to output an image. By arranging the vent pipe 2 and the elastic loading module 5, the elastic loading module 5 loaded with the coupling liquid can be attached to the microwave antenna 6, the microwave signal is less affected, and the imaging effect is good at the same time. In a specific implementation, the plurality of microwave antennas 6 are switched to work in turn.

As shown in Figure 1, the preferred embodiment of the present invention is: air hole 7 is set on the described skull cover 4, and described ventilation pipe 2 is connected described air hole 7, and described air hole 7 communicates described ventilation pipe 2 and described skull cover 4 lumens. Alternatively, air holes 7 are set on the skull cover 4 , and the ventilation tube 2 passes through all or part of the air holes 7 , and the air tube 7 communicates with the cavity of the ventilation tube 2 and the skull cover 4 . These several ways all can communicate with the inner chamber of described head cover 4 by described ventilation tube 2.

As shown in Fig. 1, the preferred embodiment of the present invention is: the opening of described ventilation pipe 2 is arranged on the space between described microwave antenna 6, just can suck away the air of described head cover 4 inner cavity as far as possible like this, makes The elastic loading module 5 loaded with coupling fluid can be attached to the microwave antenna 6 more closely.

As shown in FIG. 1 , a preferred embodiment of the present invention is: the head cover 4 is also provided with the elastic loading module 5 fixed and a fixing port 9 for passing through and communicating with the coupling liquid storage module.

As shown in Figure 1, constructing a multi-channel portable microwave scanning brain imaging method includes the following steps:

Loading coupling fluid: the elastic loading module 5 is loaded with an appropriate amount of coupling fluid, and the elastic loading module 5 is connected to the coupling fluid storage module through the infusion pipeline 3;

Put on the skull mask: the skull mask 4 is worn on the head of the person to be scanned;

Laying the elastic loading module: the elastic loading module 5 carrying the coupling liquid is laid between the head of the scanning imager and the arc antenna array;

Generating negative pressure: the vacuum negative pressure generating module draws out the air in the inner cavity of the skull cover 4 through the ventilation tube, so that the elastic loading module 5 fits the curved antenna array;

The microwave antenna 6 works: the microwave signal processing unit 8 drives the microwave transmitting module and the microwave receiving module to work, the microwave transmitting module sends and transmits microwave signals, and the microwave receiving module receives reflected microwave signals;

The microwave signal processing unit 8 works: the microwave antenna 6 is multiple, and a plurality of the microwave antenna 6 is connected to the microwave signal processing unit 8 to form a multi-channel, and the microwave signal processing unit 8 receives the signal received by the microwave receiving module. The signal is processed for imaging.

As shown in Figure 1, the specific implementation process of the present invention is: the elastic loading module 5 is loaded with an appropriate amount of coupling fluid, the elastic loading module 5 is connected to the coupling fluid storage module through the infusion pipeline 3, and the skull cover 4 is worn on the On the imager's head, the elastic loading module 5 loaded with coupling liquid is laid between the scanning imager's head and the arc antenna array. As shown in Figure 2, the vacuum negative pressure generating module extracts the air in the inner cavity of the skull cover 4 through the ventilation tube 2, so that the elastic loading module 5 fits the arc antenna array, and each microwave antenna 6 The microwave signal processing unit 8 is respectively connected to the microwave signal processing unit 8 through the microwave signal line 1, and the microwave signal processing unit 8 drives the microwave transmitting module and the microwave receiving module to work, the microwave transmitting module transmits and transmits microwave signals, and the microwave receiving module The module receives reflected microwave signals. There are multiple microwave antennas 6, and multiple microwave antennas 6 are connected to the microwave signal processing unit 8 to form multiple channels. The signal is subjected to imaging processing, and an image output module is also included, and the image output module is connected to the microwave signal processing unit 8 to output an image. By arranging the vent pipe 2 and the elastic loading module 5, the elastic loading module 5 loaded with the coupling liquid can be attached to the microwave antenna 6, the microwave signal is less affected, and the imaging effect is good at the same time. In a specific implementation, the plurality of microwave antennas 6 are switched to work in turn.

The technical effect of the present invention is: build a kind of multi-channel portable microwave scanning brain imaging device and method, comprise and the shape of the brain is matched by the curved surface antenna array, skull cover 4, ventilation tube 2, the loading coupling liquid that microwave can penetrate The elastic loading module 5, the coupling liquid storage module (not shown in the figure) for storing the coupling liquid, the vacuum negative pressure generating module (not shown in the figure) for generating vacuum negative pressure, and the microwave signal processing unit 8, the arc surface The antenna array includes a plurality of microwave antennas 6 arranged in an arc, and the microwave signal processing unit 8 includes a microwave transmitting module and a microwave receiving module, and each microwave antenna 6 is respectively connected to the microwave signal processing unit 8, The opening at one end of the ventilation tube 2 is connected to the skull cover 4 and communicates with the inner chamber of the skull cover 4, and the other end of the ventilation tube 2 is connected to the vacuum negative pressure generating module, and the ventilation tube 2 is a plurality of The opening connections of a plurality of the ventilation tubes 2 are distributed in multiple areas of the skull cover 4, and the multiple areas cover the entire skull cover 4, and the elastic loading module 5 is connected to the coupling liquid storage module, The microwave signal processing unit 8 drives the microwave transmitting module and the microwave receiving module to work, the microwave antenna 6 is connected to the microwave signal processing unit 8, and the microwave signal processing unit 8 receives the microwave signal received by the microwave receiving module. The signal is processed for imaging. A multi-channel portable microwave scanning brain imaging device and method of the present invention, by arranging the ventilation tube 2 and the elastic loading module 5, the elastic loading module 5 loaded with the coupling liquid can be close to the microwave antenna 6, and the microwave signal is less affected, and at the same time Imaging effect is good.

The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be assumed that the specific implementation of the present invention is limited to these descriptions. For those of ordinary skill in the technical field of the present invention, without departing from the concept of the present invention, some simple deduction or replacement can be made, which should be regarded as belonging to the protection scope of the present invention.

Claims (10)

1. A multi-channel portable microwave scanning brain imaging device is characterized in that it comprises an array of curved antennas that cooperate with the shape of the brain, a skull cover, a ventilator, an elastic loading module for loading coupling liquid that microwaves can penetrate, and a storage A coupling liquid storage module for coupling liquid, a vacuum negative pressure generating module for generating vacuum negative pressure, and a microwave signal processing unit, the arc antenna array includes a plurality of microwave antennas arranged in an arc, and the microwave signal processing The unit includes a microwave transmitting module and a microwave receiving module, each microwave antenna is respectively connected to the microwave signal processing unit, the opening at one end of the ventilation tube is connected to the skull mask and communicates with the inner cavity of the skull mask, and the ventilation tube The other end is connected to the vacuum negative pressure generating module, and there are a plurality of ventilation pipes, and the openings of the plurality of ventilation pipes are connected and distributed in multiple areas of the skull cover, and the multiple areas cover the entire skull cover , the elastic loading module is connected to the coupling liquid storage module, the microwave signal processing unit drives the microwave transmitting module and the microwave receiving module to work, the microwave antenna is connected to the microwave signal processing unit, and the microwave signal processing unit The processing unit performs imaging processing according to the signal received by the microwave receiving module. 2. The multi-channel portable microwave scanning brain imaging device according to claim 1, wherein an air hole is set on the skull cover, the air hole is connected to the air hole, and the air hole communicates with the air pipe and the skull inner cavity of the cover. 3. The multi-channel portable microwave scanning brain imaging device according to claim 1, wherein an air hole is arranged on the skull cover, and the ventilation pipe passes through all or part of the air hole, and the air hole communicates with the ventilation pipe and the lumen of the skull mask. 4 . The multi-channel portable microwave scanning brain imaging device according to claim 1 , wherein the opening of the ventilation tube is arranged in the gap between the microwave antennas. 5 . The multi-channel portable microwave scanning brain imaging device according to claim 1 , wherein the skull cover is also provided with a fixing port for fixing the elastic loading module and for communicating with the coupling liquid storage module. 6 . 6 . The multi-channel portable microwave scanning brain imaging device according to claim 1 , wherein the plurality of microwave antennas switch and work in turn. 7 . 7. The multi-channel portable microwave scanning brain imaging device according to claim 1, further comprising an image output module connected to the microwave signal processing unit to output images. 8. A multi-channel portable microwave scanning brain imaging method, is characterized in that, comprises the steps: Loading coupling fluid: the elastic loading module is loaded with an appropriate amount of coupling fluid, and the elastic loading module is connected to the coupling fluid storage module; Putting on the skull mask: the skull mask is worn on the head of the person to be scanned; Laying the elastic loading module: the elastic loading module loaded with coupling fluid is laid between the scanning imager's head and the arc antenna array; Generating negative pressure: the vacuum negative pressure generating module draws out the air in the inner cavity of the skull mask through the ventilation tube, so that the elastic loading module fits the curved antenna array; Microwave antenna work: the microwave signal processing unit drives the microwave transmitting module and the microwave receiving module to work, the microwave transmitting module transmits and transmits microwave signals, and the microwave receiving module receives reflected microwave signals; Working of the microwave signal processing unit: there are multiple microwave antennas connected to the microwave signal processing unit to form multiple channels, and the microwave signal processing unit performs imaging processing according to the signal received by the microwave receiving module. 9 . The multi-channel portable microwave scanning brain imaging method according to claim 8 , wherein the plurality of microwave antennas switch and work in turn. 10. The multi-channel portable microwave scanning brain imaging method according to claim 8, further comprising outputting images of head imaging.