A kind of electroencephalogram acquisition device suitable for newborns

Abstract

The present invention relates to the field of EEG acquisition technology, and in particular to an EEG acquisition device suitable for newborns. It comprises: a fixed cover; a plurality of first fixed shells, all of which are arranged on the fixed cover, the first fixed shells are installed and connected with an adsorbent, the first fixed shell is fixedly connected with a fixing frame on the side close to the adsorbent, the fixing frame is installed with a connecting member located in the first fixed shell, and the connecting member is provided with an acquisition module located in the fixed cover on the side away from the fixing frame. The invention adopts a method of buckling the adsorbent on the skin of the newborn in advance, and then spraying a conductive liquid into the adsorbent, so that there is an appropriate amount of conductive liquid between the skin of the newborn and the electrode sheet. This method can not only control the amount of conductive liquid, but also reduce the diffusion of the conductive liquid, and can also provide a stable physical support structure for the conductive sheet through the adsorption of the adsorbent, to ensure that the electrode sheet is in close contact with the skin of the newborn.

Description

Technical Field

[0001] The present invention relates to the technical field of electroencephalogram (EEG) acquisition, and in particular to an EEG acquisition device suitable for newborns. Background Art

[0002] The brain development of newborns, especially premature babies, is not yet fully mature and is easily affected by various factors, such as hypoxia, bacterial infection, etc., which can easily lead to epileptic seizures or other neurological diseases. Therefore, it is crucial for newborns to monitor their brain electrical activity in a timely and accurate manner. Electroencephalogram (EEG), as a modern medical technology that studies brain function by recording electrical signals generated by brain neuron activity, plays a key role in newborn health management and disease prevention.

[0003] With the development of science and technology, EEG acquisition equipment has evolved from bulky and non-portable laboratory devices to lightweight, efficient and wearable devices. These modern EEG acquisition devices not only improve the convenience and accuracy of data collection, but also provide a more comfortable and safe monitoring environment for newborns.

[0004] Specifically, EEG acquisition equipment mainly includes the following parts:

[0005] Electrode: used to capture weak electrical signals on the scalp;

[0006] Amplifier: Amplifies the weak signal captured by the electrodes to a level that can be processed by a computer;

[0007] Analysis platform: provides data storage, real-time display and other functions.

[0008] During the EEG acquisition process, in order to ensure the quality of the signal, it is usually necessary to apply conductive paste or conductive liquid when placing the electrode on the forehead of the newborn. However, the current method has some problems: first, the amount of conductive liquid applied is difficult to accurately control; too much conductive liquid will spread around, easily causing the operating environment to become slippery, increasing the risk of the electrode shifting or falling off, and making it impossible to effectively fix the electrode in the current position. In addition, when there is too much conductive liquid, the excess part needs to be wiped off. When wiping the excess conductive liquid, the newborn will often cry due to discomfort, further increasing the difficulty and uncertainty of the operation. Summary of the invention

[0009] In order to solve the problems mentioned in the above background technology, the present invention provides an electroencephalogram (EEG) acquisition device suitable for newborns.

[0010] The technical implementation scheme of the present invention is: an EEG acquisition device suitable for newborns, comprising: a fixed cover; a plurality of first fixed shells, all of which are arranged on the fixed cover, the first fixed shells are installed with and connected to an adsorption piece, a fixing frame is fixedly connected to a side of the first fixed shell close to the adsorption piece, the fixing frame is installed with a connecting piece located in the first fixed shell, a collecting module located in the fixed cover is arranged on a side of the connecting piece away from the fixing frame, when the adsorption piece is adsorbed on a part of the newborn that needs to be collected, the collecting module collects the EEG of the newborn in the adsorption piece; an exhaust component, the number of which is the same as that of the first fixed shells, and they are respectively arranged on adjacent first fixed shells, after the adsorption piece is adsorbed on a part of the newborn that needs to be collected, the exhaust component fixes the adsorption piece to the newborn.

[0011] More preferably, the vacuum assembly includes: a sealing member, which is sealingly and slidably connected to the first fixed shell; a rotating cylinder, which is arranged in the sealing member; a drainage cylinder, which is fixedly connected in the rotating cylinder, the drainage cylinder is provided with a guide hole, and the sealing member is provided with a first L-shaped channel, a first connecting tube is fixedly connected between the sealing member and the adsorption member, the first connecting tube on the sealing member is connected with the first L-shaped channel, and the first L-shaped channel is used to connect the drainage cylinder with the first connecting tube on the sealing member, and the first connecting tube on the sealing member is connected with the adsorption member; a liquid holding member, which is fixedly connected to the rotating cylinder, and a conductive liquid is stored in the liquid holding member, and the drainage cylinder is connected with the liquid holding member; a sealing assembly, which is arranged in the adjacent first fixed shell, and when the adsorption member is adsorbed on the part of the newborn that needs to be collected, the sealing assembly separates the adsorption member and the first fixed shell.

[0012] More preferably, there is friction between the sealing element and the first fixed shell.

[0013] More preferably, the first fixing shell is L-shaped.

[0014] More preferably, the sealing assembly includes: a sealing ring fixedly connected to a side of the first fixed shell close to the adsorption member; a sealing seat slidably connected to the connecting member, a spring being provided between the sealing seat and the fixed frame, and the sealing seat being used to seal the sealing ring; and a driving assembly provided on an adjacent first fixed shell, for driving the adjacent sealing seat to move.

[0015] More preferably, an inclined surface is provided on the inner side of the sealing ring, the sealing seat is in a truncated cone shape, and the sealing seat is used to seal the sealing ring.

[0016] More preferably, the driving assembly includes: a wire sleeve, fixedly connected to the adjacent first fixed shell and the fixed frame; a wire core, slidably connected in the wire sleeve, one end of the wire core is fixedly connected to the sealing seat, and a sliding block fixedly connected to the other end of the wire core is slidably connected to the side of the first fixed shell close to the liquid containing part.

[0017] More preferably, it also includes: a liquid extraction component, the number of which is consistent with that of the first fixed shells, and which are respectively arranged on adjacent first fixed shells. When it is no longer necessary to collect the neonatal EEG, the liquid extraction component extracts the conductive liquid in the adsorbent. The liquid extraction component includes: a second fixed shell, fixedly connected to the adjacent first fixed shell, a first chamber and a second chamber being arranged in the second fixed shell, and the second fixed shell is slidably connected to a sliding component that slides along the first chamber and the second chamber.

[0018] More preferably, the cross-sectional area within the first chamber is smaller than the cross-sectional area within the second chamber.

[0019] More preferably, a second L-shaped channel is provided in the sealing member, a second connecting tube is fixedly connected between the sealing member and the second fixed shell, the second connecting tube on the second fixed shell is used to connect the second L-shaped channel and the first chamber, the second L-shaped channel is used to connect the drainage tube with the second connecting tube on the sealing member, a third connecting tube is fixedly connected between the second fixed shell and the adsorption member, the third connecting tube on the second fixed shell is connected with both the adsorption member and the second chamber, and the rotating tube and the drainage tube both rotate along the sealing member.

[0020] The present invention has the following advantages: in order to solve the problem that excessive application of conductive liquid in the existing apparatus may cause displacement or falling off of the electrode sheet, and that the newborn may cry due to discomfort during wiping, the present invention adopts a method of buckling the adsorbent on the skin of the newborn in advance, and then spraying the conductive liquid into the adsorbent, so that there is an appropriate amount of conductive liquid between the skin of the newborn and the electrode sheet. This method can not only control the amount of conductive liquid, but also reduce the diffusion of the conductive liquid, and can also provide a stable physical support structure for the conductive sheet through the adsorption of the adsorbent, ensuring that the electrode sheet is in close contact with the skin of the newborn, reducing the impact of the displacement or falling off of the electrode sheet caused by the activity of the newborn or external interference, and improving the signal quality and acquisition efficiency, ensuring the comfort and safety of the newborn; after completing the EEG acquisition of the newborn, a negative pressure extraction method is adopted to timely extract the used conductive liquid, which reduces the operation process and reduces the chance of external pollution sources contacting the skin of the newborn, thereby reducing the risk of cross infection. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the three-dimensional structure of the first fixed shell and the adsorption member of the present invention;

[0023] Figure 3 It is a schematic diagram of the three-dimensional structure of the first fixed shell and the adsorption member of the present invention from another viewing angle;

[0024] Figure 4 It is a three-dimensional structural cross-sectional view of the first fixed shell of the present invention;

[0025] Figure 5 It is a three-dimensional structural diagram of the liquid-containing part showing the positional relationship between the sealing part and the rotating drum of the present invention;

[0026] Figure 6 It is a three-dimensional structural cross-sectional view of the rotary drum of the present invention;

[0027] Figure 7 It is a three-dimensional structural cross-sectional view of the drainage tube of the present invention;

[0028] Figure 8 It is a three-dimensional structural cross-sectional view of the sealing ring of the present invention;

[0029] Fig. 9 It is a three-dimensional structural schematic diagram of the positional relationship between the wire sleeve and the sliding block of the present invention;

[0030] Fig.10 It is a schematic diagram of the three-dimensional structure of the wire core and the sliding block of the present invention.

[0031] In the figure: 1-fixed cover, 2-first fixed shell, 3-adsorption member, 4-fixed frame, 5-connecting member, 6-collection module, 7-sealing member, 8-rotating cylinder, 9-drainage cylinder, 10-liquid holding member, 11-sealing ring, 12-sealing seat, 13-wire sleeve, 14-wire core, 15-sliding block, 16-second fixed shell, 17-first chamber, 18-second chamber, 19-sliding member, 20-second L-shaped channel, 21-first L-shaped channel. DETAILED DESCRIPTION

[0032] The present invention will be further described below in conjunction with specific embodiments. The illustrative embodiments and descriptions of the present invention are used to explain the present invention but are not intended to limit the present invention.

[0033] The present invention aims to solve the problem in the prior art that when too much conductive liquid is applied, it will spread around, thereby increasing the risk of displacement or falling off, and the newborn is prone to crying due to discomfort during the process of wiping the excess conductive liquid. The specific solution is as follows:

[0034] Embodiment 1: A device for collecting EEG data suitable for newborns, such as Figure 1-Figure 9As shown, it includes: a fixed cover 1; a plurality of first fixed shells 2, all of which are arranged on the fixed cover 1, and the first fixed shells 2 are installed with and connected with an adsorption member 3, and a fixing frame 4 is fixedly connected to the side of the first fixed shell 2 close to the adsorption member 3, and the fixing frame 4 is installed with a connecting member 5 located in the first fixed shell 2, and a collecting module 6 located in the fixed cover 1 is arranged on the side of the connecting member 5 away from the fixing frame 4. When the adsorption member 3 is adsorbed on the part of the newborn that needs to be collected, the collecting module 6 collects the brain electricity of the newborn in the adsorption member 3; the exhaust components are the same in number as the first fixed shells 2, and are respectively arranged on adjacent first fixed shells 2. After the adsorption member 3 is adsorbed on the part of the newborn that needs to be collected, the exhaust component fixes the adsorption member 3 to the newborn; the exhaust component includes: a sealing member 7, which is sealingly and slidably connected to the first fixed shell 2; a rotating drum 8, which is arranged on the sealing member 7; a drainage drum 9, which is fixed in the rotating drum 8, and the drainage drum 9 A guide hole is provided, a first L-shaped channel 21 is provided in the sealing member 7, a first connecting tube is fixedly connected between the sealing member 7 and the adsorption member 3, the first connecting tube on the sealing member 7 is connected with the first L-shaped channel 21, the first L-shaped channel 21 is used to connect the drainage tube 9 with the first connecting tube on the sealing member 7, the first connecting tube on the sealing member 7 is connected with the adsorption member 3; a liquid holding member 10 is fixedly connected to the rotating drum 8, a conductive liquid is stored in the liquid holding member 10, and the drainage tube 9 is connected with the liquid holding member 10; a sealing component is provided in an adjacent first fixed shell 2, when the adsorption member 3 is adsorbed on the part of the newborn that needs to be collected, the sealing component separates the adsorption member 3 and the first fixed shell 2; there is a friction force between the sealing member 7 and the first fixed shell 2, which is used to keep the sealing member 7 fixed in the first fixed shell 2 after the sealing member 7 stops moving, and the first fixed shell 2 is L-shaped, which is used to reduce the influence of the external environment on the first fixed shell 2.

[0035] In the above scheme, the shape of the fixed cover 1 is only an example. The first fixed shell 2 and the adsorbent 3 can be made of transparent materials. The number of the first fixed shell 2 can be adjusted according to the actual situation. The fixing frame 4 is located at the lower side of the first fixed shell 2. The fixing frame 4 is detachably connected to the connecting member 5. The rear side of the connecting member 5 is a magnetic block. The collection module 6 is an electrode sheet. The magnetic block on the rear side of the connecting member 5 is used to adsorb the collection module 6. When it is necessary to collect EEG from the newborn, the adsorbent 3 is buckled on the EEG collection site of the newborn. The sealing member 7 slides upward along the first fixed shell 2 and extracts the gas in the adsorbent 3, so as to achieve the effect of enhancing the fixation of the adsorbent 3. , and the conductive liquid injected through the vacuum assembly increases the contact area between the collection module 6 and the neonatal EEG collection site, so that the conductive liquid fills the air gap around the collection module 6 and improves the quality of signal transmission. The upper side of the first connecting tube on the sealing member 7 passes through it and is connected to the first L-shaped channel 21, and the lower side of the first connecting tube on the sealing member 7 passes through it and is connected to the adsorption member 3. When the guide hole on the drainage tube 9 is connected to the first L-shaped channel 21, the drainage tube 9 can transport the conductive liquid in the liquid holding member 10 to the first L-shaped channel 21 through the guide hole on the drainage tube 9. The guide hole on the drainage tube 9 is initially connected to the first L-shaped channel 21.

[0036] like Figure 5 , Figure 6 and Figure 8 As shown, the sealing assembly includes: a sealing ring 11, which is fixed to one side of the first fixed shell 2 close to the adsorption member 3; a sealing seat 12, which is slidably connected to the connecting member 5, and a spring is arranged between the sealing seat 12 and the fixing frame 4, and the sealing seat 12 is used to seal the sealing ring 11; a driving assembly, which is arranged on the adjacent first fixed shell 2, and is used to drive the adjacent sealing seat 12 to move, and an inclined surface is arranged on the inner side of the sealing ring 11, and the sealing seat 12 is truncated cone-shaped, and the sealing seat 12 is used to seal the sealing ring 11.

[0037] In the above scheme, the liquid holding member 10 can be a liquid bag, and the spring on the fixed frame 4 is used to drive the sealing seat 12 to move and reset. The connection between the adsorbent 3 and the first fixed shell 2 is separated by the fitting of the sealing ring 11 and the sealing seat 12. The inclined surface of the sealing ring 11 and the truncated cone on the sealing seat 12 are used to reduce the wear caused by the relative movement between the two.

[0038] like Figure 2 , Figure 4 , Figure 5 , Fig. 9 and Fig.10 As shown, the driving assembly includes: a wire sleeve 13, fixedly connected to the adjacent first fixed shell 2 and the fixed frame 4; a wire core 14, slidably connected in the wire sleeve 13, one end of the wire core 14 is fixedly connected to the sealing seat 12, and a sliding block 15 fixedly connected to the other end of the wire core 14 is slidably connected to the side of the first fixed shell 2 close to the liquid containing part 10.

[0039] In the above scheme, the sliding block 15 is provided with an inclined surface, the upper end of the wire sleeve 13 is fixedly connected to the first fixed shell 2, the lower end of the first fixed shell 2 is fixedly connected to the fixed frame 4, the upper end of the wire core 14 is fixedly connected to the sliding block 15, and the lower end of the wire core 14 is fixedly connected to the sealing seat 12. When the wire core 14 slides in the wire sleeve 13, the distance between the sealing ring 11 and the sealing seat 12 is adjusted.

[0040] Working principle: When it is necessary to collect EEG data for a newborn, the medical staff will first establish a connection between the collection module 6 and the analysis platform, then adjust the posture of the newborn to a lying position, and then place the first fixed shell 2 and the adsorption component 3 on the forehead of the newborn in sequence. Now take the fixed placement of one of the first fixed shells 2 and the adsorption component 3 as an example: the medical staff will first take the first fixed shell 2 and buckle the adsorption component 3 on the forehead of the newborn. At this time, the central axis of the adsorption component 3 is perpendicular to the horizontal line. Then the medical staff will squeeze the liquid holding component 10 to make the conductive liquid in the liquid holding component 10 flow into the first L-shaped channel 21 through the guide hole on the drainage tube 9. The conductive liquid is transported from the first L-shaped channel 21 to the first connecting tube, and then the first connecting tube on the sealing component 7 will send the conductive liquid between the collection module 6 and the skin of the newborn.

[0041] When delivering the conductive liquid between the collection module 6 and the skin of the newborn, the medical staff first pushes the inclined surface of the sliding block 15 to move the sliding block 15 toward the side close to the liquid container 10 , and the wire core 14 is pulled during the movement of the sliding block 15 .

[0042] When the sliding block 15 pulls the wire core 14 to move, the wire core 14 pulls the sealing seat 12 during the movement of the wire sleeve 13, so that the sealing seat 12 moves to the side away from the adsorbent 3 and releases the blockage of the sealing ring 11. During the movement of the sealing seat 12, it moves along the connecting piece 5 and squeezes the spring on the sealing seat 12. As the adsorbent 3 is filled with liquid, the pressure in the adsorbent 3 gradually increases. At this time, the sealing ring 11 is released through the sealing seat 12, so that the excess gas in the adsorbent 3 passes through the sealing ring 11 and enters the first fixed shell 2. Then the medical staff pulls the liquid holding piece 10, so that the liquid holding piece 10 drives the rotating drum 8 and the sealing piece 7 to move along the first fixed shell 2, and extracts the gas between the first fixed shell 2 and the adsorbent 3 during the movement of the sealing piece 7, so as to assist in the discharge of excess gas in the adsorbent 3. During this process, the collection module 6 gradually contacts the forehead of the newborn through the conductive liquid in the adsorbent 3. At this time, the medical staff continues to squeeze and pull the liquid holding piece 10.

[0043] When the conductive liquid in the adsorbent 3 covers the collection module 6 (the effect here is: the conductive liquid wraps the collection module 6 so that the conductive liquid fills the air gap around the collection module 6, thereby making the collection module 6 fit closely with the skin of the newborn, thereby improving the efficiency of signal transmission), the medical staff no longer squeezes the liquid-containing member 10 (the liquid-containing member 10 is in a contracted state at this time), and then the medical staff continues to pull the liquid-containing member 10, so that the adsorbent 3 is in a negative pressure state, and then the liquid-containing member 10 is no longer pulled, and the liquid-containing member 10 and the sealing member 7 and their attached parts are Stop displacement to achieve negative pressure fixation of the adsorption component 3, and then the medical staff releases the sliding block 15, and pushes the sealing seat 12 to the position of the sealing ring 11 under the action of the spring reset on the sealing seat 12 (the wire core 14 is stretched in the reverse direction during the movement of the sealing seat 12, so that the wire core 14 drives the sliding block 15 to move and reset), so that the sealing seat 12 blocks the sealing ring 11, disconnects the connection between the adsorption component 3 and the first fixed shell 2, and maintains a seal between the adsorption component 3 and the skin of the newborn (at this time, the sealing component 7 and the first fixed shell 2 will not move relative to each other).

[0044] After the adsorption component 3 is sealed against the neonatal skin (the conductive liquid between the two will not leak out), the medical staff disconnects the connection between the liquid containing component 10 and the adsorption component 3, so that the two are temporarily disconnected (the liquid containing component 10 will not be deformed, and the first connecting tube on the adsorption component 3 can be clamped by a surgical clamp to simulate the way of manually pinching the first connecting tube, so as to intercept the flow in the first connecting tube and keep the amount of conductive liquid in the adsorption component 3 constant). The contact between the collection module 6 and the neonatal skin is achieved through the above-mentioned operation steps, and the subsequent adsorption actions of the adsorption component 3 can be repeated.

[0045] After completing the adsorption of all the adsorbents 3, the medical staff buckles the fixing cover 1 on the forehead of the newborn, wraps all the adsorbents 3 with the fixing cover 1, and fixes the first fixing shell 2. Then, the newborn's EEG information is transmitted to the analysis platform through the amplifier through the acquisition module 6, and the analysis platform obtains the newborn's EEG.

[0046] When it is no longer necessary to collect the EEG information of the newborn, the fixed cover 1 is first removed, and then the medical staff pushes the inclined surface of the sliding block 15, so that the sliding block 15 drives the sealing seat 12 to release the limit of the sealing ring 11 (the movement process of the parts is consistent with the above), and then presses the liquid holding member 10 and the rotating drum 8 into the first fixed shell 2 (until the pressing is Figure 5 state), increase the pressure in the adsorption member 3 so that the adsorption member 3 is no longer adsorbed on the skin of the newborn, and then the medical staff processes the conductive liquid.

[0047] Embodiment 2: Based on embodiment 1, Figure 3-Figure 7As shown, it also includes: a liquid extraction component, which is consistent with the number of the first fixed shells 2 and is respectively arranged on the adjacent first fixed shells 2. When it is no longer necessary to collect the neonatal EEG, the liquid extraction component extracts the conductive liquid in the adsorbent 3. The liquid extraction component includes: a second fixed shell 16, which is fixed to the adjacent first fixed shell 2. The second fixed shell 16 is provided with a first chamber 17 and a second chamber 18. The second fixed shell 16 is slidably connected to a sliding member 19 that slides along the first chamber 17 and the second chamber 18. The cross-sectional area in the first chamber 17 is smaller than the cross-sectional area in the second chamber 18, and the sliding member 19 is used to enlarge the sliding member 19. During the moving stroke, both the rotating drum 8 and the drainage drum 9 rotate along the sealing member 7, a second L-shaped channel 20 is arranged in the sealing member 7, a second connecting tube is fixedly connected between the sealing member 7 and the second fixed shell 16, the second connecting tube on the second fixed shell 16 is used to connect the second L-shaped channel 20 and the first chamber 17, the second L-shaped channel 20 is used to connect the drainage drum 9 with the second connecting tube on the sealing member 7, a third connecting tube is fixedly connected between the second fixed shell 16 and the adsorption member 3, the third connecting tube on the second fixed shell 16 is connected with both the adsorption member 3 and the second chamber 18, and both the rotating drum 8 and the drainage drum 9 rotate along the sealing member 7.

[0048] In the above scheme, when the sliding member 19 moves in the second chamber 18, the conductive liquid in the adsorption member 3 is extracted or the conductive liquid in the second chamber 18 is pushed out. The cross-sectional area in the first chamber 17 is smaller than the cross-sectional area in the second chamber 18, so as to increase the moving stroke of the sliding member 19. The upper side of the third connecting tube on the second fixed shell 16 passes through the second fixed shell 16 and is connected to the lower side of the second chamber 18. The lower side of the third connecting tube on the second fixed shell 16 is connected to the adsorption member 3. The lower side of the second connecting tube on the second fixed shell 16 passes through the second fixed shell 16 and is connected to the lower side of the first chamber 17. The lower side of the second connecting tube on the second fixed shell 16 passes through the sealing member 7 and is connected to the second L-shaped channel 20.

[0049] Working principle: When the liquid holding part 10 is in the process of injecting conductive liquid into the adsorption part 3, the conductive liquid in the liquid holding part 10 first enters the drainage tube 9, and then enters the first L-shaped channel 21 through the guide hole on the lower side of the drainage tube 9. The conductive liquid is then transported to the first connecting tube by the first L-shaped channel 21, and then transported to the adsorption part 3 by the first connecting tube, thereby completing the transportation of the conductive liquid.

[0050] After the adsorption component 3 is adsorbed on the forehead of the newborn, the medical staff rotates the liquid holding component 10, the rotating drum 8 and the drainage tube 9 until the guide hole on the drainage tube 9 is no longer connected to the first L-shaped channel 21, thereby achieving the effect of temporarily disconnecting the connection between the liquid holding component 10 and the adsorption component 3 mentioned in Example 1.

[0051] After completing the collection of the newborn's EEG, the medical staff rotates the liquid holding member 10, the rotating drum 8 and the drainage tube 9 until the guide hole on the drainage tube 9 is connected to the second L-shaped channel 20. The medical staff squeezes the liquid holding member 10 while pressing it toward the adsorption member 3. After the liquid holding member 10 is squeezed, the conductive liquid in it flows into the second L-shaped channel 20 through the drainage tube 9 and the guide hole thereon, and then enters the first chamber 17 through the second connecting pipe on the second L-shaped channel 20, increasing the pressure in the first chamber 17 while causing the conductive liquid to drive the sliding member 19 away from the adsorption member 3. The sliding member 19 moves in the direction of the adsorption member 3. During the movement of the sliding member 19, a negative pressure is formed in the second chamber 18. Under the action of the negative pressure in the second chamber 18, the third connecting tube extracts the used conductive liquid in the adsorption member 3 (when it is no longer necessary to collect the EEG of the newborn, the conductive liquid in the adsorption member 3 is extracted, and the liquid holding member 10 drives the rotating drum 8, the drainage drum 9 and the sealing member 7 to move downward to increase the pressure in the adsorption member 3. At this time, the sealing seat 12 does not block the sealing ring 11) to realize the recovery of the conductive liquid after use. At that time, the status of the above parts is the same as that of the above parts. Figure 5 Consistent.

[0052] After completing the recovery of the conductive liquid, all the first fixed shells 2, the adsorption components 3 and the fixed cover 1 are removed from the forehead of the newborn. The medical staff can remove the adsorption component 3 for replacement or cleaning. During this process, the medical staff presses the sliding member 19 to move the sliding member 19 in the direction of the adsorption component 3, and causes the sliding member 19 to squeeze out the used conductive liquid in the second chamber 18 through the third connecting tube. During the movement of the sliding member 19, the unused conductive liquid in the first chamber 17 is squeezed into the liquid holding member 10 through the second connecting tube, the second L-shaped channel 20 and the drainage tube 9.

[0053] When the newborn's EEG needs to be collected again, the medical staff rotates the liquid holding member 10 , the rotating drum 8 and the drainage drum 9 until the guide hole on the drainage drum 9 is connected to the first L-shaped channel 21 .

[0054] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the scope of implementation of the present invention. Therefore, all equivalent changes made to the contents of the present invention should be included in the protection scope of the present invention.

Claims

1. An electroencephalogram (EEG) acquisition device suitable for newborns, characterized in that: include: Fixed cover (1); A plurality of first fixed shells (2) are arranged on the fixed cover (1); the first fixed shells (2) are installed with and connected to an adsorption member (3); a fixing frame (4) is fixedly connected to a side of the first fixed shell (2) close to the adsorption member (3); a connecting member (5) located in the first fixed shell (2) is installed on the fixing frame (4); a collection module (6) located in the fixed cover (1) is arranged on a side of the connecting member (5) away from the fixing frame (4); when the adsorption member (3) is adsorbed on a part of the newborn that needs to be collected, the collection module (6) collects the brain electricity of the newborn in the adsorption member (3); The number of the air extraction components is the same as that of the first fixed shells (2), and they are respectively arranged on adjacent first fixed shells (2); after the adsorption component (3) is adsorbed on the part of the newborn that needs to be collected, the air extraction component fixes the adsorption component (3) on the newborn; The air extraction assembly comprises a sealing member (7) which is sealingly and slidably connected to the first fixed shell (2); A rotating drum (8) disposed on the sealing member (7); A drainage tube (9) is fixedly connected to the rotating tube (8), the drainage tube (9) is provided with a guide hole, a first L-shaped channel (21) is provided in the sealing member (7), a first connecting pipe is fixedly connected between the sealing member (7) and the adsorption member (3), the first connecting pipe on the sealing member (7) is connected to the first L-shaped channel (21), the first L-shaped channel (21) is used to connect the drainage tube (9) with the first connecting pipe on the sealing member (7), and the first connecting pipe on the sealing member (7) is connected to the adsorption member (3); A liquid holding member (10) is fixedly connected to the rotating drum (8), wherein the liquid holding member (10) contains conductive liquid, and the drainage drum (9) is in communication with the liquid holding member (10); a sealing component, arranged in the adjacent first fixed shell (2), and when the adsorbent (3) is adsorbed on the part of the newborn that needs to be collected, the sealing component separates the adsorbent (3) from the first fixed shell (2); The sealing assembly comprises a sealing ring (11) fixedly connected to a side of the first fixed shell (2) close to the adsorption member (3); A sealing seat (12) is slidably connected to the connecting member (5), a spring is provided between the sealing seat (12) and the fixing frame (4), and the sealing seat (12) is used to seal the sealing ring (11); The driving assembly comprises a wire sleeve (13) fixedly connected to the adjacent first fixed shell (2) and the fixed frame (4); The wire core (14) is slidably connected in the wire sleeve (13), one end of the wire core (14) is fixedly connected to the sealing seat (12), and a sliding block (15) fixedly connected to the other end of the wire core (14) is slidably connected to the side of the first fixed shell (2) close to the liquid storage part (10). The sliding block (15) is pushed to move toward the side close to the liquid storage part (10). The wire core (14) is pulled when the sliding block (15) moves. The sealing seat (12) is pulled when the wire core (14) moves along the wire sleeve (13), so that excess gas in the adsorbent (3) passes through the sealing ring (11) and enters the first fixed shell (2).

2. The electroencephalogram acquisition device suitable for newborns according to claim 1, characterized in that: There is friction between the sealing element (7) and the first fixed shell (2).

3. The electroencephalogram acquisition device suitable for newborns according to claim 2, characterized in that: The first fixing shell (2) is L-shaped.

4. The electroencephalogram acquisition device suitable for newborns according to claim 1, characterized in that: An inclined surface is provided on the inner side of the sealing ring (11); the sealing seat (12) is in the shape of a truncated cone; and the sealing seat (12) is used to seal the sealing ring (11).

5. The electroencephalogram acquisition device suitable for newborns according to claim 1, characterized in that: Also includes: The number of the liquid extraction components is the same as that of the first fixed shells (2), and they are respectively arranged on adjacent first fixed shells (2). When it is no longer necessary to collect the neonatal EEG, the liquid extraction components extract the conductive liquid in the adsorbent (3). The liquid extraction components include: The second fixed shell (16) is fixedly connected to the adjacent first fixed shell (2), wherein a first chamber (17) and a second chamber (18) are arranged in the second fixed shell (16), and the second fixed shell (16) is slidably connected to a sliding member (19) that slides along the first chamber (17) and the second chamber (18).

6. The electroencephalogram acquisition device suitable for newborns according to claim 5, characterized in that: The cross-sectional area in the first chamber (17) is smaller than the cross-sectional area in the second chamber (18).

7. The electroencephalogram acquisition device suitable for newborns according to claim 5, characterized in that: A second L-shaped channel (20) is provided in the sealing member (7); a second connecting tube is fixedly connected between the sealing member (7) and the second fixed shell (16); the second connecting tube on the second fixed shell (16) is used to connect the second L-shaped channel (20) and the first chamber (17); the second L-shaped channel (20) is used to connect the drainage tube (9) with the second connecting tube on the sealing member (7); a third connecting tube is fixedly connected between the second fixed shell (16) and the adsorption member (3); the third connecting tube on the second fixed shell (16) is connected with both the adsorption member (3) and the second chamber (18); the rotating tube (8) and the drainage tube (9) both rotate along the sealing member (7).

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