An electrical impedance imaging system for chest examination

Abstract

The present invention provides an electrical impedance imaging system for chest detection, comprising a support base and an electrode mechanism arranged on the support base, wherein the motor mechanism comprises a plurality of lifting components arranged on the support base and in a circular array, a driving component for controlling the plurality of lifting components to approach each other on the support base, and electrodes arranged at the top of the lifting components; the plurality of electrodes are arranged at the top of the lifting components through a mounting block, and the plurality of electrodes are arranged on the mounting block at equal intervals; the mounting block and the lifting components are detachably connected; the present invention facilitates the uniform placement of the electrodes on the chest of a target to be detected, thereby achieving full contact between the electrodes and the chest skin, and ensuring the imaging effect and diagnosis result of the electrical impedance imaging system.

Description

Technical Field

[0001] The invention relates to the technical field of electrical impedance imaging, in particular to an electrical impedance imaging system applied to chest detection. Background Art

[0002] Since the electrical impedance characteristics of diseased tissues and normal biological tissues are significantly different, medical imaging technologies based on the principle of bioimpedance, such as electrical impedance tomography (EIT) and electrical impedance spectroscopy (EIS), can effectively detect and locate the lesions of organisms. Medical imaging technologies based on the principle of bioimpedance place electrodes on the surface of the organism and inject low-frequency, low-power currents, and detect the impedance distribution inside the organism by detecting the voltage difference between the electrodes. Since different biological tissues have different impedance characteristics, using this type of technology to detect them can reflect the physiological characteristics of each biological tissue in terms of structure and function. Compared with nuclear medical imaging technologies such as CT and MRI, this type of technology has the advantages of being non-destructive, low-cost, small in size, and especially sensitive to early cancer lesions.

[0003] Since the electrical impedance imaging technology requires that multiple electrodes be placed in a certain arrangement to ensure the quality of the image, the placement of electrodes for different test targets must conform to a unified pattern. Therefore, if the electrodes are placed directly on the surface of the target by the operator, it is difficult to ensure that the electrode arrangement is consistent with the pre-planned pattern, uniformity, and consistency for different test targets, which has a negative impact on the imaging quality. In addition, a lot of time is required to arrange the electrodes before each test.

[0004] Due to the gender differences of the test targets, the skin of the test chest often fails to fully contact with some electrodes, and even gaps appear, resulting in some electrodes not contacting the skin of the test chest. Some electrodes have poor contact with the skin, causing some electrodes in the electrode array to fail to provide corresponding real electrical signals, which will inevitably affect the imaging effect and diagnostic results of the electrical impedance imaging system. Summary of the invention

[0005] In response to the above technical problems, the present invention provides an electrical impedance imaging system for chest detection, which facilitates the uniform placement of electrodes on the chest of the target to be detected, achieves full contact between the electrodes and the chest skin, and ensures the imaging effect and diagnostic results of the electrical impedance imaging system.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solutions: an electrical impedance imaging system for chest detection, comprising a support base and an electrode mechanism disposed on the support base, wherein the electrode mechanism comprises a plurality of lifting assemblies disposed on the support base and arranged in a circular array, a driving assembly for controlling the plurality of lifting assemblies to approach each other on the support base, and an electrode disposed at the top of the lifting assemblies;

[0007] The plurality of electrodes are arranged on the top of the lifting assembly through a mounting block, and the plurality of electrodes are arranged on the mounting block at equal intervals; the mounting block is detachably connected to the lifting assembly;

[0008] The lifting assembly includes a support arm with a bottom end arranged on the driving block and a connection slot formed on the top end, a support rod with a bottom end inserted into the connection slot and a top end connected to the mounting block, and a fixing member arranged on the support rod for fixing the position between the support rod and the support arm;

[0009] The fixing member includes a control screw having one end arranged at a position near the bottom of the side of the support rod and the other end passing through a control groove having a connecting groove on the side of the support arm, a buffer block sleeved on the control screw, and a thread block arranged on the control screw, wherein the thread block is located away from the support arm and is threadedly connected to the control screw;

[0010] The end surface of the support arm adjacent to the buffer block is provided with a plurality of positioning grooves at equal intervals along the vertical direction, and the end surface of the buffer block adjacent to the support arm is provided with a positioning block matching the positioning grooves.

[0011] The driving assembly includes a plurality of driving blocks in limit grooves provided along the upper end surface of the support seat in the direction of the center of the circle, and a driving member arranged in the support seat and connected to the driving blocks. The plurality of limit grooves are provided in a circular array on the upper end surface of the support seat; the limit grooves are connected to the driving grooves provided inside the support seat.

[0012] The driving member includes a driving disk arranged in the driving groove, and a driving rack in a spiral structure arranged on the upper end surface of the driving disk. The driving block is arranged in the driving groove and meshes with the driving rack.

[0013] The driving member includes a driving screw rod which is arranged in the limiting groove and passes through the driving block, and a driving motor which is arranged in the driving groove and drives the plurality of driving screw rods to rotate. The driving screw rod is threadedly connected with the driving block.

[0014] The driving member comprises a micro cylinder arranged in a limiting groove, and a linkage rod arranged at an output end of the micro cylinder and connected to the driving block.

[0015] The electrode mechanism also includes an angle adjustment component arranged on the support seat and connected to the mounting block, the angle adjustment component includes a control motor arranged at the center position of the upper end surface of the support seat, a height adjustment rod with a connecting block arranged on the top end of the output end of the control motor, and a linkage rope arranged on the connecting block and connected to the mounting blocks one by one. The mounting block is arranged on the top end of the support rod through a rotating block, and the end surface of the mounting block away from the height adjustment rod is connected to the top end of the reset spring; the bottom end of the reset spring is connected to the side of the height limiting block arranged on the upper end surface of the support rod, and the height limiting block is located adjacent to the rotating block and away from one side of the height adjusting rod, and the height of the height limiting block is equal to the distance from the rotating block to the top end of the support rod.

[0016] The beneficial effects of the present invention are as follows: the electrode mechanism is used to facilitate detection of patients, and the electrodes are brought into uniform contact with the chest skin of the target patient, wherein the driving component is used to drive the positions of the multiple height adjustment components and electrodes on the support seat, thereby facilitating adjustment to an arrangement position suitable for the patient, so as to facilitate diagnosis of the patient, and the mounting block is connected to the top of the lifting component through an angle adjustment component, thereby facilitating adjustment of the electrode for rotation, and when rotating toward the center position of the support seat, it is convenient to inspect the female chest, and when the mounting block and the electrode are moved away from the support seat, it is convenient to inspect the male chest, thereby avoiding diagnostic errors when inspecting patients of different genders, facilitating uniform placement of the electrodes on the chest of the target to be measured, achieving full contact between the electrodes and the chest skin, and ensuring the imaging effect and diagnostic results of the impedance imaging system. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0018] Figure 1 This is a simplified structural diagram of the electrical impedance imaging system for chest detection proposed by the present invention.

[0019] Figure 2 It is a schematic diagram of the driving member structure of the present invention.

[0020] Figure 3 It is a schematic diagram of the height adjustment component structure of the present invention.

[0021] Figure 4 It is a schematic diagram of the enlarged structure of point A of the present invention.

[0022] Figure 5 It is a schematic diagram of the enlarged structure of point B of the present invention.

[0023] In the figure: 1. support seat; 2. limit groove; 3. drive block; 4. support arm; 5. support rod; 6. mounting block; 7. electrode; 8. motor; 9. height adjustment rod; 10. connecting block; 11. linkage rope; 12. control groove; 13. positioning groove; 14. buffer block; 15. control screw; 16. threaded block; 17. drive rack; 18. height limit block; 19. reset spring; 20. drive groove; 21. drive disk. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the present invention is further described below in conjunction with specific embodiments and drawings, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of the present invention.

[0025] See also Figure 1-5 , an electrical impedance imaging system for chest detection, comprising a support base 1, and an electrode mechanism arranged on the support base 1, the electrode mechanism comprising a plurality of lifting components arranged on the support base 1 and arranged in a circular array, a driving component for controlling the plurality of lifting components to approach each other on the support base 1, and an electrode 7 arranged at the top of the lifting component;

[0026] Multiple electrodes 7 are arranged on the top of the lifting assembly through the mounting block 6, and the multiple electrodes 7 are arranged on the mounting block 6 at equal intervals; the mounting block 6 and the lifting assembly are detachably connected, which facilitates the replacement and maintenance of the electrode 7 when the electrode 7 fails or is damaged.

[0027] like Figure 1-5 As shown, the driving assembly facilitates the movement of multiple lifting assemblies and the electrode 7 on the upper end surface of the support base 1, and the multiple lifting assemblies and the electrode 7 all move synchronously, so as to facilitate the stability of the position of the electrodes 7, and ensure that the electrodes 7 can be evenly distributed around the patient's chest when the electrodes 7 are in contact with the patient's chest skin for inspection, so that the electrodes 7 can be evenly placed on the chest of the target to be measured, so as to achieve full contact between the electrodes 7 and the chest skin, and ensure the imaging effect and diagnostic results of the electrical impedance imaging system.

[0028] The driving assembly includes a plurality of driving blocks 3 in the limiting grooves 2 opened along the upper end surface of the support seat 1 in the direction of the center of the circle, and a driving member arranged in the support seat 1 and connected to the driving blocks 3. The plurality of limiting grooves 2 are opened in a circular array on the upper end surface of the support seat 1; the limiting grooves 2 are connected to the driving grooves 20 opened inside the support seat 1.

[0029] like Figure 1As shown, the direction of the limit groove 2 restricts the driving block 3 to only drive the lifting assembly and the electrode 7 to move in the direction of the center of the circle through the upper end surface of the support seat 1. At this time, the driving block 3 can be easily controlled to move in the limit groove 2 through driving, thereby facilitating the adjustment of the position and distance between the electrodes 7 and ensuring the uniformity of the electrodes 7.

[0030] The first type: the driving member includes a driving disc 21 arranged in the driving groove 20, and a driving rack 17 with a spiral bar structure arranged on the upper end surface of the driving disc 21, and the driving block 3 is arranged in the driving groove 20 and meshes with the driving rack 17.

[0031] The second type: the driving member includes a driving screw rod disposed in the limiting groove 2 and penetrating the driving block 3 , and a driving motor disposed in the driving groove 20 and driving the plurality of driving screw rods to rotate, and the driving screw rod is threadedly connected to the driving block 3 .

[0032] The third type: the driving member includes a micro cylinder arranged in the limiting groove 2, and a linkage rod arranged at the output end of the micro cylinder and connected to the driving block 3.

[0033] The above are three situations of the driving member. The function of controlling the synchronous movement of the lifting assembly and the electrode 7 can be achieved through each method. However, the first embodiment of the driving member is better. The structure of the first driving member is relatively simple. Only one stepping motor is used to achieve the function of controlling the movement of the lifting assembly and the electrode 7, and the energy consumption is relatively small.

[0034] like Figure 1-2 As shown, when examining a female chest, the placement of the electrode 7 needs to be changed for different women. The electrode mechanism can achieve uniform placement of the electrode 7, and also ensures full contact between the electrode 7 and the chest skin, thereby ensuring the imaging effect and diagnostic result of the electrical impedance imaging system.

[0035] The lifting assembly includes a support arm 4 whose bottom end is arranged on the driving block 3 and whose top end is provided with a connecting groove, a support rod 5 whose bottom end is passed through the connecting groove and whose top end is connected to the mounting block 6, and a fixing part arranged on the support rod 5 for fixing the position between the support rod 5 and the support arm 4.

[0036] like Figure 3 As shown, the support rod 5 is inserted into the connecting groove. By moving the length of the support rod 5 inserted into the connecting groove, the distance between the electrode 7 and the upper end surface of the support seat 1 can be adjusted, and the position of the support rod 5 and the support arm 4 can be fixed by a fixing piece.

[0037] The fixing part includes a control screw 15 with one end arranged on the side of the support rod 5 near the bottom and the other end passing through a control groove 12 with a connecting groove on the side of the support arm 4, a buffer block 14 sleeved on the control screw 15, and a threaded block 16 arranged on the control screw 15. The threaded block 16 is located at a position away from the support arm 4, and the threaded block 16 is threadedly connected to the control screw 15.

[0038] like Figure 3-4 As shown, when the support rod 5 is inserted into the connecting groove to a suitable length, the buffer block 14 is pressed against the support arm 4 by rotating the threaded block 16, thereby facilitating fixing the position between the support rod 5 and the support arm 4. The buffer block 14 is provided to increase friction so as to facilitate fixing the position between the support rod 5 and the support arm 4.

[0039] The electrode mechanism also includes an angle adjustment component arranged on the support seat 1 and connected to the mounting block 6, the angle adjustment component includes a control motor 8 arranged at the center position of the upper end surface of the support seat 1, a height adjustment rod 9 whose bottom end is connected to the output end of the control motor 8 and a connecting block 10 is arranged on the top, and a linkage rope 11 is arranged on the connecting block 10 and is respectively connected to the mounting blocks 6 one by one. The mounting block 6 is arranged at the top of the support rod 5 through the rotating block, and the end surface of the mounting block 6 away from the height adjustment rod 9 is connected to the top of the reset spring 19; the bottom end of the reset spring 19 is connected to the side of the height limiting block 18 arranged on the upper end surface of the support rod 5, and the height limiting block 18 is located at a position adjacent to the rotating block and away from the side of the height adjusting rod 9, and the height of the height limiting block 18 is equal to the distance from the rotating block to the top of the support rod 5.

[0040] like Figure 1 As shown, when the angle of the electrode 7 needs to be adjusted, the height of the connecting block 10 is changed by controlling the height-adjusting rod 9 through the control motor 8, and then the mounting block 6 is pulled or loosened through the linkage rope 11 to rotate around the top of the support rod 5 through the rotating block, wherein the electrode 7 is limited to be in a vertical upward direction in a normal state by the reset spring 19, and with the cooperation of the linkage rope 11, it is convenient to adjust the angle of the electrode 7 so that the electrode 7 can fully contact with the patient's chest skin.

[0041] A plurality of positioning grooves 13 are formed at equal intervals along the vertical direction on the end surface of the support arm 4 adjacent to the buffer block 14 , and a positioning block matching the positioning grooves 13 is provided on the end surface of the buffer block 14 adjacent to the support arm 4 .

[0042] like Figure 4 As shown, the positioning block enters into the positioning groove 13 , thereby facilitating the definition of the position between the support rod 5 and the support arm 4 , thereby facilitating the fixing of the positional relationship between the support rod 5 and the support arm 4 by the threaded block 16 .

[0043] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An electrical impedance imaging system for chest detection, comprising a support base (1) and an electrode mechanism arranged on the support base (1), characterized in that: The electrode mechanism comprises a plurality of lifting components arranged on a support seat (1) and arranged in a circular array, a driving component for controlling the plurality of lifting components to move closer to each other on the support seat (1), and an electrode (7) arranged at the top of the lifting components; The plurality of electrodes (7) are arranged on the top of the lifting component via a mounting block (6), and the plurality of electrodes (7) are arranged on the mounting block (6) at equal intervals; the mounting block (6) and the lifting component are detachably connected; The driving assembly comprises a plurality of driving blocks (3) in limit grooves (2) provided along the upper end surface of the support seat (1) in a direction passing through the center of a circle, and a driving member provided in the support seat (1) and connected to the driving blocks (3); the plurality of limit grooves (2) are provided in a circular array on the upper end surface of the support seat (1); the limit grooves (2) are connected to a driving groove (20) provided inside the support seat (1); The lifting assembly comprises a support arm (4) whose bottom end is arranged on the driving block (3) and whose top end is provided with a connection groove, a support rod (5) whose bottom end is inserted into the connection groove and whose top end is connected to the mounting block (6), and a fixing member arranged on the support rod (5) for fixing the position between the support rod (5) and the support arm (4); The fixing member comprises a control screw (15) with one end arranged on the side of the support rod (5) near the bottom and the other end passing through a control groove (12) provided on the side of the support arm (4) and having a connecting groove therethrough, a buffer block (14) sleeved on the control screw (15), and a threaded block (16) arranged on the control screw (15), wherein the threaded block (16) is located at a position away from the support arm (4), and the threaded block (16) is threadedly connected to the control screw (15); The end surface of the support arm (4) adjacent to the buffer block (14) is provided with a plurality of positioning grooves (13) at equal intervals in the vertical direction, and the end surface of the buffer block (14) adjacent to the support arm (4) is provided with a positioning block matching the positioning grooves (13).

2. The electrical impedance imaging system for chest detection according to claim 1, characterized in that: The driving member comprises a driving disk (21) arranged in the driving groove (20), and a driving rack (17) in a spiral bar structure arranged on the upper end surface of the driving disk (21); the driving block (3) is arranged in the driving groove (20) and meshes with the driving rack (17).

3. The electrical impedance imaging system for chest detection according to claim 1, characterized in that: The driving member comprises a driving screw rod disposed in the limiting groove (2) and penetrating the driving block (3), and a driving motor disposed in the driving groove (20) and driving the plurality of driving screw rods to rotate; the driving screw rod is threadedly connected to the driving block (3).

4. The electrical impedance imaging system for chest detection according to claim 1, characterized in that: The driving member comprises a micro cylinder arranged in the limiting groove (2), and a linkage rod arranged at the output end of the micro cylinder and connected to the driving block (3).

5. The electrical impedance imaging system for chest detection according to claim 1, characterized in that: The electrode mechanism also includes an angle adjustment component which is arranged on the support seat (1) and connected to the mounting block (6). The angle adjustment component includes a control motor (8) arranged at the center position of the upper end surface of the support seat (1), a height adjustment rod (9) whose bottom end is connected to the output end of the control motor (8) and a connecting block (10) is arranged at the top end, and a linkage rope (11) which is arranged on the connecting block (10) and is respectively connected to the mounting blocks (6) in a one-to-one correspondence. The mounting block (6) is arranged at the top end of the support rod (5) through a rotating block, and the end surface of the mounting block (6) away from the height adjustment rod (9) is connected to the top end of a return spring (19); the bottom end of the return spring (19) is connected to the side of a height limiting block (18) arranged on the upper end surface of the support rod (5), and the height limiting block (18) is located at a position adjacent to the rotating block and away from the height adjustment rod (9). The height of the height limiting block (18) is equal to the distance from the rotating block to the top end of the support rod (5).

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