Portable analyzer based on ultrasonic transcranial Doppler

Abstract

The invention discloses a portable analyzer based on ultrasonic transcranial Doppler, and relates to the technical field of ultrasonic transcranial Doppler analyzers, the portable analyzer comprises an ultrasonic transcranial Doppler analyzer body, the ultrasonic transcranial Doppler analyzer body comprises a deck plate and a side frame which are respectively used for supporting a display and a host module, a supporting and changing mechanism for adjusting the contact position of the ultrasonic transcranial Doppler analyzer body and the supporting surface is arranged on the hollow supporting leg, the supporting and changing mechanism comprises a central column, a plurality of groups of directional supporting rods are arranged at the bottom of the central column, and a longitudinal pressing assembly for driving a hollow cylinder to quantitatively move in the vertical direction so as to extrude the directional supporting rods is arranged on the hollow supporting leg; according to the ultrasonic transcranial Doppler analyzer, by arranging the supporting and changing mechanism, the stability of the ultrasonic transcranial Doppler analyzer body in the detection process can be guaranteed, so that the detection accuracy and stability are guaranteed, by switching the contact position with the supporting surface, the flexibility and use convenience of the equipment are improved, and the ultrasonic transcranial Doppler analyzer can adapt to different use scenes.

Description

Technical Field

[0001] The present invention relates to the technical field of transcranial Doppler ultrasound analyzers, and specifically to a portable analyzer based on transcranial Doppler ultrasound. Background Art

[0002] A transcranial Doppler ultrasound analyzer is a non-invasive cerebrovascular disease detection device that uses the Doppler effect of ultrasound to detect the hemodynamics and physiological parameters of the main arteries at the base of the skull through weak areas or natural channels of the skull. Its working principle is that the probe emits ultrasonic waves to the cerebrovascular vessels, and after encountering the blood flow, it reflects back to the probe receiving unit. Affected by the Doppler effect, the blood flow velocity is calculated through the frequency of the reflected ultrasonic waves.

[0003] In order to solve the problems of large volume and limited use scenarios of existing transcranial Doppler ultrasound analyzers, a desktop vehicle form is usually adopted. However, this design still has many inconveniences in actual use. Most current portable transcranial Doppler ultrasound analyzers are equipped with universal wheels. Although they are convenient for movement, before performing ultrasonic detection, the vehicle body still needs to be manually locked to ensure its stability. This not only increases the operation steps but also may cause the vehicle body to shake during the detection process due to insecure locking, affecting the accuracy and stability of the detection. Therefore, it is difficult for existing portable devices to automatically adapt to and stabilize the vehicle body according to the usage state. Thus, a portable analyzer based on transcranial Doppler ultrasound is proposed. Summary of the Invention

[0004] The purpose of the present invention is to provide a portable analyzer based on transcranial Doppler ultrasound, which has the advantage of changing the contact position between the transcranial Doppler ultrasound analyzer and the support surface to meet different usage requirements, and solves the problem that it is difficult for existing portable transcranial Doppler ultrasound analyzers to automatically adapt to and stabilize the vehicle body according to the usage state.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A portable analyzer based on transcranial Doppler ultrasound, including a transcranial Doppler ultrasound analyzer body. The transcranial Doppler ultrasound analyzer body includes a table panel and side frames respectively used to support a display and a host module. Under the table panel, there are hollow legs and branch legs for supporting universal wheels. There are multiple groups of ultrasonic probes on the host module, and a cable is integrally formed on the ultrasonic probe. Two boxes for receiving coupling agent and disinfectant are fixedly arranged on the table panel. The hollow legs are provided with a support conversion mechanism for adjusting the contact position between the transcranial Doppler ultrasound analyzer body and the support surface.

[0006] The branch replacement mechanism includes a central column disposed inside the hollow leg and fixedly connected to the table top panel. A hollow cylinder is slidably sleeved on the central column. At the bottom of the central column, there are multiple groups of directional support rods, and the universal wheels are fixedly connected to the lower surface of the directional support rods. On the hollow leg, there is a longitudinal pressure assembly for driving the hollow cylinder to move quantitatively in the vertical direction to squeeze the directional support rods.

[0007] On the side frame, there is a winding and unwinding assembly for winding or releasing the cable according to the height change of the hollow cylinder.

[0008] On the hollow leg, there is a separate spraying assembly for spraying coupling agent and disinfectant to the ultrasonic probe inserted and fixed into the inner arc groove.

[0009] Preferably, the bottom of the branch leg includes an integrally formed support foot portion. Multiple groups of directional support rods are rotatably fixed on the central column, and the horizontal height of the universal wheels provided on the directional support rods in the initial state is higher than the horizontal height of the support foot portion.

[0010] The bottom of the hollow cylinder includes an integrally formed downward pressing portion, and the downward pressing portion is in sliding contact with the directional support rod.

[0011] Preferably, the longitudinal pressure assembly includes a side frame fixedly connected to the hollow leg. On the side frame, there is a central gear driven by a motor and freely rotatable in the vertical direction. The central gear is rotatably fixed on the side frame and meshed with a rack. A lateral through groove for the vertical sliding of the rack is opened on the hollow leg.

[0012] The rack and the hollow cylinder are fixedly connected to each other.

[0013] Preferably, two sets of teeth are also slidably connected to the lateral through groove. The two sets of teeth are respectively located at the upper and lower ends of the rack. On the horizontal sides of the teeth and the rack, a set of convex blocks are respectively fixedly connected. Between the two sets of convex blocks, there is a set of guide pins.

[0014] The guide pin is fixedly connected to the convex block provided on the rack, and a round hole for the guide pin to slide through is opened on the convex block provided at the teeth.

[0015] A return spring is sleeved on the outer peripheral surface of the guide pin, and the two ends of the return spring are respectively fixedly connected to a set of convex blocks.

[0016] Preferably, an inner arc groove for inserting the ultrasonic probe is opened on the side frame. The winding and unwinding assembly includes a lower extension seat fixedly connected to the side frame. On the lower extension seat, an upper shaft is rotatably fixed, and a cable winding drum for winding the cable is fixedly sleeved on the upper shaft. An outer ring body is sleeved outside the cable winding drum and the outer ring body is rotatably fixed on the cable winding drum. A groove body one for clamping the cable is opened on the outer ring body.

[0017] A driven wheel is fixedly sleeved on the upper shaft, and a driving wheel is coaxially fixed on the central gear. A belt for driving the driving wheel and the driven wheel is provided on the hollow leg, and a wire arranging assembly for arranging the wound cable is provided on the lower extension seat.

[0018] Preferably, the wire arranging assembly includes a lower shaft which is in transmission connection with the upper shaft. Both ends of the lower shaft are rotatably fixed on the lower extension seat, and a reciprocating lead screw is coaxially fixed on the lower shaft.

[0019] A same-position seat is threadedly connected to the reciprocating lead screw, and a limiting groove for the cable to pass through is formed in the same-position seat. A rectangular groove for the same-position seat to slide horizontally is formed in the lower extension seat.

[0020] Preferably, the sub-spraying assembly includes a first nozzle and a second nozzle fixedly arranged on the side frame. The liquid outlet ends of the first nozzle and the second nozzle both face the side of the ultrasonic probe at the inner arc groove.

[0021] Two piston cylinders are fixedly connected to the hollow leg. The integrally formed inlet ends of the two piston cylinders are respectively in gas communication with two boxes for receiving coupling agent and disinfectant, and the integrally formed outlet ends of the two piston cylinders are respectively in gas communication with the first nozzle and the second nozzle.

[0022] A side extension rod is fixedly connected to the hollow cylinder. The side extension rod penetrates through the side through groove and is fixedly connected to a vertical column. A group of pressing plates are respectively fixedly connected to the upper and lower ends of the vertical column, and the two pressing plates are respectively in sliding contact with the inner walls of the corresponding piston cylinders.

[0023] Preferably, the coupling agent is received in the piston cylinder at the upper position, and the disinfectant is received in the piston cylinder at the lower position.

[0024] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0025] 1. By setting the support conversion mechanism, the present invention can make the support feet contact with the support surface during detection, ensuring the stability of the ultrasonic transcranial Doppler analyzer body, thereby guaranteeing the accuracy and stability of detection, and avoiding affecting the detection results due to equipment shaking. When it is necessary to move or transport, it can be switched to the state where the universal wheels contact the support surface, making the equipment easy to move, improving the flexibility and use convenience of the equipment, and being able to adapt to different use scenarios.

[0026] 2. By setting the sub-spraying assembly, the present invention can automatically spray coupling agent or disinfectant on the ultrasonic probe according to different states during the process of switching the contact position with the support surface. Spraying coupling agent before detection ensures the smooth propagation of ultrasonic waves and improves the detection effect; spraying disinfectant after detection removes the residual coupling agent, ensures the cleanliness of the ultrasonic probe, and prevents cross-infection. Description of the Drawings

[0027] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 is a schematic diagram of the component where the hollow leg of the present invention is located;

[0029] Figure 3 is the present invention Figure 2 an enlarged view of part A in;

[0030] Figure 4 is the present invention Figure 2 an enlarged view of part B in;

[0031] Figure 5 is a schematic diagram of the component where the directional rod of the present invention is located;

[0032] Figure 6 is a schematic diagram of the component where the hollow cylinder of the present invention is located;

[0033] Figure 7 is the present invention Figure 6 an enlarged view of part C in;

[0034] Figure 8 is a schematic diagram of the component where the upper shaft of the present invention is located;

[0035] Figure 9 is a schematic diagram of the component where the side extension rod of the present invention is located.

[0036] In the figure: 1, table top panel; 2, hollow leg; 3, side frame; 4, branch leg; 401, support foot part; 5, central column; 6, hollow cylinder; 601, pressing part; 7, directional rod; 8, lateral through groove; 9, rack; 10, tooth; 11, convex block; 12, guide pin; 13, return spring; 14, side position frame; 15, central gear; 16, driving wheel; 17, driven wheel; 18, upper shaft; 19, winding drum; 20, lower shaft; 21, reciprocating lead screw; 22, same position seat; 23, limiting groove; 24, lower extension seat; 25, ultrasonic probe; 251, cable; 26, inner arc groove; 27, first nozzle; 28, second nozzle; 29, side extension rod; 30, vertical column; 31, pressing plate; 32, piston cylinder; 33, universal wheel. Specific embodiments

[0037] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0038] Please refer toFigures 1 to 9 , the present invention provides a technical solution: a portable analyzer based on transcranial Doppler ultrasound, including a transcranial Doppler ultrasound analyzer body. The transcranial Doppler ultrasound analyzer body includes a tabletop 1 and a side frame 3 for supporting a display and a host module respectively. A hollow leg 2 and a branch leg 4 for supporting a universal wheel 33 are provided below the tabletop 1. A plurality of groups of ultrasonic probes 25 are provided on the host module, and a cable 251 for electrically connecting with the host module is integrally formed on the ultrasonic probe 25. Two boxes for receiving coupling agent and disinfectant are fixedly arranged on the tabletop 1. A support replacement mechanism for adjusting the contact position between the transcranial Doppler ultrasound analyzer body and the support surface is provided on the hollow leg 2;

[0039] The support replacement mechanism includes a central column 5 arranged inside the hollow leg 2 and fixedly connected to the tabletop 1. A hollow cylinder 6 is slidably sleeved on the central column 5. A plurality of groups of directional support rods 7 arranged in an annular array are provided at the bottom of the central column 5. The plurality of groups of directional support rods 7 are all rotatable about a fixed axis on the central column 5, and the universal wheel 33 is fixedly connected to the lower surface of the directional support rod 7. The bottom of the hollow cylinder 6 includes a downward pressing part 601 integrally formed. The downward pressing part 601 is in sliding contact with the directional support rod 7. A longitudinal pressing component for driving the hollow cylinder 6 to move quantitatively in the vertical direction is provided on the hollow leg 2;

[0040] An inner arc groove 26 for inserting the ultrasonic probe 25 is formed on the side frame 3. A winding and unwinding component for winding or releasing the cable 251 according to the height change of the hollow cylinder 6 is provided on the side frame 3;

[0041] A spraying component for spraying coupling agent and disinfectant to the ultrasonic probe 25 inserted and fixed in the inner arc groove 26 is provided on the hollow leg 2.

[0042] As Figure 1 、 Figure 2 、 Figure 4 and Figure 5 shown, when examining a patient through the transcranial Doppler ultrasound analyzer body, the longitudinal pressing component is used to drive the hollow cylinder 6 to move upward. Among them, the plurality of groups of directional support rods 7 are all rotatable about a fixed axis on the central column 5, and a torsion spring for driving the directional support rod 7 to be in an initial deflection state is provided on the central column 5. This torsion spring is an existing device and a technical means well-known to those skilled in the art, so it is not shown in the figure. At the same time, when the hollow cylinder 6 moves upward, the downward pressing part 601 integrally formed at the bottom of the hollow cylinder 6 gradually releases the downward pressing force on the directional support rod 7, so as to drive the directional support rod 7 to gradually return to the initial state.

[0043] Among them, the bottom of the branch leg 4 includes an integrally formed support foot portion 401, and the horizontal height of the universal wheel 33 arranged on the directional support rod 7 is higher than the horizontal height of the support foot portion 401 in the initial state. Therefore, in the initial state, when the directional support rod 7 restores the initial deflection, the universal wheel 33 arranged on the directional support rod 7 can be driven to move upward, thereby prompting the support foot portion 401 to contact the supporting surface, and the support foot portion 401 is horizontally arranged, so that the table panel 1, the side frame 3 and the display and host module and other components arranged thereon are supported by multiple groups of support foot portions 401 on the branch legs 4, and multiple groups of support foot portions 401 are in contact with the supporting surface, which can ensure the stability of the ultrasonic transcranial Doppler analyzer body when the patient is examined, thereby ensuring the accuracy and stability of the detection.

[0044] At the same time, when the hollow cylinder 6 moves downward, it can drive the downward pressure portion 601 at its bottom to squeeze the directional support rod 7, and drive the directional support rod 7 to gradually deflect downward, so as to prompt the multiple sets of universal wheels 33 to contact the supporting surface synchronously, and drive the support foot portion 401 to separate from the supporting surface to change the contact position with the supporting surface. When the multiple sets of universal wheels 33 contact the supporting surface, it can facilitate the subsequent movement or transportation process of the ultrasonic transcranial Doppler analyzer body.

[0045] At the same time, when the directional support rod 7 is restored to its initial deflected state, the retracting assembly can gradually release the cable 251, thereby providing sufficient pulling length for the subsequent inspection process to ensure that the released length of the cable 251 can ensure that the ultrasound probe 25 is in contact with the patient's inspection part, and in the process of switching the contact position with the support surface, that is, when the universal wheel 33 is driven to contact the support surface, the cable 251 can be reeled in to avoid the excessively long cable 251 hanging on the side frame 3 and causing scratches and damage due to the subsequent transportation process of the ultrasonic transcranial Doppler analyzer body.

[0046] At the same time, in the process of changing the contact position between the ultrasonic transcranial Doppler analyzer body and the supporting surface, coupling agent or disinfectant can be sprayed on the ultrasonic probe 25 fixed on the inner arc groove 26. Specifically, when the universal wheel 33 is switched to the support foot 401 to contact the supporting surface, coupling agent can be sprayed on the ultrasonic probe 25 to ensure that the coupling agent can fill the air gap between the ultrasonic probe 25 and the skin, so that the ultrasonic wave can be smoothly transmitted from the ultrasonic probe 25 to the human tissue, thereby reducing energy loss and improving the detection effect.

[0047] At the same time, when the support foot 401 switches to the process of the universal wheel 33 contacting the support surface, disinfectant can be sprayed on the ultrasonic probe 25 to remove the coupling agent used in the inspection process on the ultrasonic probe 25 through the disinfectant, thereby avoiding the residual coupling agent on the ultrasonic probe 25 after the inspection is completed. Drying up and affecting subsequent use.

[0048] It should be noted that the main body of the transcranial Doppler ultrasound analyzer mainly includes a host module, a display, an ultrasound probe 25, a signal processing unit, and a data analysis module. Their main functions are as follows:

[0049] Host module: The host module is the core part of the transcranial Doppler ultrasound analyzer main body, responsible for functions such as sending and receiving ultrasonic waves, analog-to-digital conversion, data storage and transmission, etc., to ensure the accuracy and reliability of data;

[0050] The signal processing unit is responsible for receiving the signals collected by the ultrasound probe 25 and performing amplification, filtering, and digital processing. This step is crucial for ensuring the accuracy and reliability of data, and the data analysis software can perform statistical analysis and spectral display on the collected hemodynamic parameters;

[0051] The ultrasound probe 25 emits ultrasonic waves at a certain frequency, penetrates the weak part of the skull, enters the cerebral blood vessels, and then receives the reflected signals. After processing the signals, they can be converted into blood flow velocity, direction, and other hemodynamic parameters.

[0052] In a relatively preferred embodiment, the longitudinal pressure assembly includes a side frame 14 fixedly connected to the hollow leg 2. A central gear 15 driven by a motor and freely rotatable in the vertical direction is provided on the side frame 14. The central gear 15 rotates on the side frame 14 about a fixed axis and is meshed with a rack 9. A lateral through groove 8 for the vertical sliding of the rack 9 is opened on the hollow leg 2;

[0053] The rack 9 and the hollow cylinder 6 are fixedly connected to each other.

[0054] Two groups of teeth 10 are also slidably connected to the lateral through groove 8. The two groups of teeth 10 are respectively located at the upper and lower ends of the rack 9. A set of convex blocks 11 are respectively fixedly connected to the horizontal sides of the teeth 10 and the rack 9. A set of guide pins 12 are provided between the two groups of convex blocks 11;

[0055] The guide pin 12 is fixedly connected to the convex block 11 provided on the rack 9, and a circular hole for the guide pin 12 to slide through is opened on the convex block 11 provided at the teeth 10. A return spring 13 is sleeved on the outer peripheral surface of the guide pin 12, and the two ends of the return spring 13 are respectively fixedly connected to a set of convex blocks 11.

[0056] Such as Figure 1 、 Figure 2 、 Figure 6 and Figure 7As shown in the figure, the motor fixedly connected to the side frame 14 drives the central gear 15 to rotate in the vertical direction. Then, during the rotation process of the central gear 15, the rack 9 is driven to move in the vertical direction. Among them, the rack 9 is fixedly connected to the hollow cylinder 6. Then, the horizontal height of the adjusting hollow cylinder 6 and its bottom pressing part 601 is changed through the height change of the rack 9, so as to change the downward pressing force on the directional support rod 7, so as to prompt the directional support rod 7 to return to the initial deflection state or maintain the deflection state. Then, the universal wheel 33 or the supporting foot part 401 is made to contact the supporting surface, and then the contact position between the transcranial Doppler ultrasound analyzer body and the supporting surface is changed.

[0057] At the same time, when the central gear 15 continuously rotates in one direction, a set of teeth 10 at the end of the central gear 15 and the rack 9 are meshed. And when the teeth 10 correspond to the central gear 15, with the rotation of the central gear 15, the teeth 10 can reciprocate with the bumps 11 on them and the guide pins 12 that bounce with the rotation of the central gear 15, so as to adapt to the continuous rotation of the central gear 15 when the central gear 15 and the rack 9 reach the end position. Then, during the continuous rotation of the central gear 15, the moving strokes of both the rack 9 and the hollow cylinder 6 in the vertical direction are fixed, so as to avoid excessive extrusion of the directional support rod 7.

[0058] Based on the embodiment of the longitudinal pressing assembly, the winding and unwinding assembly includes a lower extension seat 24 fixedly connected to the side frame 3. An upper shaft 18 is rotatably fixed on the lower extension seat 24, and a winding drum 19 for winding the cable 251 is fixedly sleeved on the upper shaft 18. An outer ring body is sleeved outside the winding drum 19 and the outer ring body is rotatably fixed on the winding drum 19. A groove 1 for clamping the cable 251 is opened on the outer ring body;

[0059] A driven wheel 17 is fixedly sleeved on the upper shaft 18, and a driving wheel 16 is coaxially fixed on the central gear 15. A belt for driving the driving wheel 16 and the driven wheel 17 is provided on the hollow leg 2. A wire arranging assembly for sorting the wound cable 251 is provided on the lower extension seat 24.

[0060] As Figure 1 、 Figure 6 and Figure 8 shown in the figure, when the central gear 15 rotates, it can drive the driven wheel 17 connected to it in transmission to rotate synchronously through the belt. Among them, the driven wheel 17 is fixedly sleeved on the upper shaft 18, and then the upper shaft 18 and multiple winding drums 19 arranged on it can be driven to rotate synchronously.

[0061] At the same time, the cable 251 is plugged into the host module, and the cable 251 passes through the slot body 1, and the ultrasonic probe 25 is plugged into the inner arc slot 26. When the winding drum 19 rotates, the outer ring body is rotationally connected to the winding drum 19, and the rotation process of the winding drum 19 will not reel in the cable 251 toward one end of the host module, and the rotation process of the winding drum 19 can only reel in the cable 251 on the side toward the ultrasonic probe 25.

[0062] Among them, the rotation direction of the ultrasonic probe 25 determines the movement direction of the hollow tube 6 and the rotation direction of the winding drum 19, so that when the universal wheel 33 contacts the support surface, the cable 251 can be wound up to avoid the cable 251 being too long and causing the movement of the ultrasonic transcranial Doppler analyzer body to cause scratches and wear. At the same time, when the support foot 401 contacts the support surface, the cable 251 can be released to ensure that the cable 251 has sufficient release length to meet the inspection requirements.

[0063] Furthermore, the cable arrangement assembly includes a lower shaft 20 that is transmission-connected to the upper shaft 18, both ends of the lower shaft 20 are fixedly rotated on the lower extension seat 24, and a reciprocating screw rod 21 is coaxially fixed on the lower shaft 20;

[0064] The reciprocating screw rod 21 is threadedly connected with a seat 22 , and the seat 22 is provided with a limiting groove 23 for the cable 251 to pass through, and the lower extension seat 24 is provided with a rectangular groove for the seat 22 to slide horizontally.

[0065] like Figure 2 , Figure 3 , Figure 4 and Figure 8 As shown, in actual use, the cable 251 passes through the limit groove 23 on the corresponding seat 22, wherein the upper shaft 18 and the lower shaft 20 are connected by transmission. In actual use, the two can be transmitted by meshing connection between two sets of gears to ensure that the upper shaft 18 and the lower shaft 20 can rotate synchronously.

[0066] At the same time, when the winding drum 19 rotates, the reciprocating screw rod 21 can rotate synchronously, and when the reciprocating screw rod 21 rotates, it can change the horizontal position of the isoposition seat 22 and its upper limit groove 23 to change the relative position of the cable 251 and the winding drum 19, so as to change the winding position of the cable 251 when the winding drum 19 rotates, so as to enable the cable 251 to be arranged in a spiral shape and equidistantly on the winding drum 19 when being wound by the winding drum 19.

[0067] Based on the embodiment of the retractable assembly, the sub-spray assembly includes a first spray head 27 and a second spray head 28 fixedly arranged on the side frame 3, and the liquid outlet ends of the first spray head 27 and the second spray head 28 are both facing the side of the ultrasonic probe 25 located at the inner arc groove 26;

[0068] Two sets of piston cylinders 32 are fixedly connected to the hollow support leg 2. The integrally formed inlet ends of the two sets of piston cylinders 32 are in gas communication with two boxes for receiving coupling agent and disinfectant respectively, and the integrally formed outlet ends of the two sets of piston cylinders 32 are in gas communication with a first nozzle 27 and a second nozzle 28 respectively;

[0069] A side extension rod 29 is fixedly connected to the hollow cylinder 6. The side extension rod 29 penetrates through the lateral through groove 8 and is fixedly connected to a vertical column 30. A set of pressing plates 31 are fixedly connected to the upper and lower ends of the vertical column 30 respectively. The two sets of pressing plates 31 are in sliding contact with the inner walls of the corresponding piston cylinders 32 respectively.

[0070] The coupling agent is received in the piston cylinder 32 in the upper position, and the disinfectant is received in the piston cylinder 32 in the lower position.

[0071] As Figure 2 、 Figure 4 and Figure 9 shown, when the hollow cylinder 6 moves in the vertical direction following the rack 9, it can synchronously drive the side extension rod 29 fixedly arranged thereon and the vertical column 30 fixedly connected to the side extension rod 29 to freely lift and lower. Among them, when the hollow cylinder 6 moves upward and gradually releases the downward pressing force on the directional support rod 7, it can drive the pressing plates 31 at both ends of the vertical column 30 to lift and lower synchronously, and cause the two sets of pressing plates 31 to move in the two sets of piston cylinders 32;

[0072] Among them, when the pressing plate 31 moves upward, it can push the coupling agent in the upper piston cylinder 32, so as to cause the coupling agent in the upper piston cylinder 32 to flow to the ultrasonic probe 25 through the first nozzle 27 fixedly connected thereto, so as to ensure the detection accuracy by applying the coupling agent to the ultrasonic probe 25.

[0073] At the same time, when the hollow cylinder 6 drives the side extension rod 29 and the vertical column 30 to move downward, the pressing plate 31 below the vertical column 30 moves in the lower piston cylinder 32, so as to drive the disinfectant in the lower piston cylinder 32 to be sprayed onto the ultrasonic probe 25 through the second nozzle 28 fixedly connected thereto, and then to remove the residual coupling agent used for inspection on the ultrasonic probe 25.

[0074] It should be noted that the piston cylinder 32 and the box for receiving the same medium are in gas communication, and a set of one-way valves are respectively provided at the inlet end and the outlet end of the two sets of piston cylinders 32, and the valve ports of the two sets of one-way valves provided on the same set of piston cylinders 32 are in opposite directions, so as to be able to limit the flow directions of the coupling agent and the disinfectant, so as to cause the coupling agent and the disinfectant to only enter the corresponding piston cylinders 32 through the corresponding boxes and flow to the ultrasonic probe 25 through the piston cylinders 32.

[0075] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A portable analyzer based on ultrasonic transcranial Doppler, comprising an ultrasonic transcranial Doppler analyzer body, the ultrasonic transcranial Doppler analyzer body comprising a table panel (1) and a side frame (3) for supporting a display and a host module respectively, a hollow support leg (2) and a branch leg (4) for supporting a universal wheel (33) are arranged below the table panel (1), a plurality of groups of ultrasonic probes (25) are arranged on the host module, and a cable (251) is integrally formed on the ultrasonic probe (25), and two groups of boxes for receiving a coupling agent and a disinfectant are fixedly arranged on the table panel (1), characterized in that: The hollow supporting leg (2) is provided with a supporting mechanism for adjusting the contact position between the ultrasonic transcranial Doppler analyzer body and the supporting surface; The support and replacement mechanism comprises a central column (5) arranged inside the hollow support leg (2) and fixedly connected to the table panel (1); a hollow cylinder (6) is slidably sleeved on the central column (5); a plurality of groups of directional support rods (7) are arranged at the bottom of the central column (5); a universal wheel (33) is fixedly connected to the lower surface of the directional support rod (7); and a longitudinal pressing component is arranged on the hollow support leg (2) to drive the hollow cylinder (6) to move quantitatively in a vertical direction to squeeze the directional support rod (7); The side frame (3) is provided with a retractable assembly for reeling in or releasing the cable (251) according to the height change of the hollow cylinder (6); The hollow supporting leg (2) is provided with an ultrasonic probe (25) inserted and fixed in the inner arc groove (26) for spraying coupling agent and disinfectant.

2. A portable analyzer based on ultrasonic transcranial Doppler according to claim 1, characterized in that: The bottom of the branch leg (4) comprises an integrally formed support foot portion (401), a plurality of groups of directional support rods (7) are all axially rotated on the central column (5), and the universal wheels (33) provided on the directional support rods (7) are higher in level than the support foot portion (401) in an initial state; The bottom of the hollow cylinder (6) comprises an integrally formed pressing portion (601), and the pressing portion (601) is in sliding contact with the directional support rod (7).

3. A portable analyzer based on ultrasonic transcranial Doppler according to claim 1, characterized in that: The longitudinal pressure assembly comprises a side frame (14) fixedly connected to the hollow leg (2), the side frame (14) is provided with a central gear (15) driven by a motor and freely rotating in a vertical direction, the central gear (15) is fixedly rotated on the side frame (14) and meshedly connected with a rack (9), and the hollow leg (2) is provided with a lateral through groove (8) for the rack (9) to slide vertically; The rack (9) and the hollow cylinder (6) are fixedly connected.

4. A portable analyzer based on ultrasonic transcranial Doppler according to claim 3, characterized in that: The lateral through groove (8) is also slidably connected with two groups of teeth (10), the two groups of teeth (10) are respectively located at the upper and lower ends of the rack (9), and a group of protrusions (11) are fixedly connected to the horizontal sides of the teeth (10) and the rack (9), and a group of guide pins (12) are provided between the two groups of protrusions (11); The guide pin (12) is fixedly connected to a protrusion (11) provided on the rack (9), and a circular hole for the guide pin (12) to slide through is provided on the protrusion (11) provided at the tooth (10); The outer peripheral surface of the guide pin (12) is sleeved with a return spring (13), and the two ends of the return spring (13) are respectively fixedly connected to a group of protrusions (11).

5. A portable analyzer based on ultrasonic transcranial Doppler according to claim 3, characterized in that: The side frame (3) is provided with an inner arc groove (26) for inserting the ultrasonic probe (25), and the retracting assembly comprises a lower extension seat (24) fixedly connected to the side frame (3), an upper shaft (18) is fixedly rotated on the lower extension seat (24), and a winding drum (19) for winding the cable (251) is fixedly sleeved on the upper shaft (18), an outer ring body is sleeved on the outer ring of the winding drum (19), and the outer ring body is fixedly rotated on the winding drum (19), and a groove body 1 for clamping the cable (251) is provided on the outer ring body; A driven wheel (17) is fixedly sleeved on the upper shaft (18), and a driving wheel (16) is coaxially fixed on the central gear (15); a belt for transmitting the driving wheel (16) and the driven wheel (17) is provided on the hollow leg (2); and a cable arrangement assembly for arranging the wound cables (251) is provided on the lower extension seat (24).

6. A portable analyzer based on ultrasonic transcranial Doppler according to claim 5, characterized in that: The cable arrangement assembly comprises a lower shaft (20) which is transmission-connected to the upper shaft (18), both ends of the lower shaft (20) are fixedly rotated on a lower extension seat (24), and a reciprocating screw rod (21) is coaxially fixed on the lower shaft (20); The reciprocating screw rod (21) is threadedly connected with a seat (22), and the seat (22) is provided with a limiting groove (23) for the cable (251) to pass through, and the lower extension seat (24) is provided with a rectangular groove for the seat (22) to slide horizontally.

7. A portable analyzer based on ultrasonic transcranial Doppler according to claim 5, characterized in that: The spray assembly comprises a first spray head (27) and a second spray head (28) fixedly arranged on the side frame (3), and the liquid outlet ends of the first spray head (27) and the second spray head (28) are both oriented toward a side of the ultrasonic probe (25) located at the inner arc groove (26); Two groups of piston cylinders (32) are fixedly connected to the hollow legs (2), and the inlet ends formed integrally on the two groups of piston cylinders (32) are respectively in gas communication with the two groups of boxes for receiving the coupling agent and the disinfectant, and the outlet ends formed integrally on the two groups of piston cylinders (32) are respectively in gas communication with the first nozzle (27) and the second nozzle (28); The hollow cylinder (6) is fixedly connected to a lateral extension rod (29), which passes through the lateral through slot (8) and is fixedly connected to a vertical column (30). The upper and lower ends of the vertical column (30) are respectively fixedly connected to a group of pressure plates (31), and the two groups of pressure plates (31) are respectively in sliding contact with the inner wall of the piston cylinder (32) at corresponding positions.

8. A portable analyzer based on ultrasonic transcranial Doppler according to claim 7, characterized in that: The piston cylinder (32) at the upper position contains a coupling agent, and the piston cylinder (32) at the lower position contains a disinfectant.

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