Ultrasonic automatic scanning medical imaging device

Abstract

The utility model discloses an ultrasonic automatic scanning medical imaging device which comprises a vertical back plate and movable limiting columns, a rectangular hollowed-out hole penetrating front and back is vertically formed in the middle of the vertical back plate, a plurality of insertion holes are formed in the two sides of the hollowed-out hole in a matrix mode, and the movable limiting columns are detachably connected into the insertion holes. A motor guide rail module is vertically mounted in a hollow hole of the vertical back plate, the motor guide rail module controls a movable mechanism to linearly reciprocate up and down, an ultrasonic transducer is slidably connected in the movable mechanism, and the ultrasonic transducer is connected with an automatic probe telescoping mechanism; and the control system is electrically connected with the motor guide rail module and the probe automatic telescopic mechanism and is used for controlling the movement of the ultrasonic transducer and recording and feeding back the position information of the ultrasonic transducer. According to the utility model, through the motor guide rail module and the movable mechanism, the ultrasonic transducer can move up and down and automatically stretch out and draw back in the horizontal direction, automatic scanning of the spine is realized, and manual operation is avoided to the greatest extent.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to an ultrasonic automatic scanning medical imaging device. Background Art

[0002] Ultrasound imaging is a key method for spinal examinations, providing a visual display of spinal structure and pathological conditions. However, traditional ultrasound imaging equipment requires manual operation by the physician, and most spinal ultrasound examinations utilize manual scanning, which requires high technical skills and significantly impacts the physician's experience and technique. While some devices currently utilize automated designs, these devices have a low degree of automation and are therefore unreliable.

[0003] Chinese utility model patent CN207707938U (authorization announcement date: August 10, 2018) discloses a long-distance three-dimensional ultrasound probe automatic scanning device. The device includes a first vertical support and a second vertical support hinged to one side of the first vertical support. The first and second vertical supports form a standing space for scoliosis patients. A vertical sliding mechanism is provided on the side opposite the hinged side of the second vertical support. The vertical sliding mechanism includes a linear slide, a ball screw rotatably mounted on the linear slide, a slider mounted on the ball screw and capable of sliding up and down along its axis, and a motor mounted on the top of the linear slide to drive the ball screw. The slider is provided with a spring hinge for applying a restoring force toward the patient's body, and the spring hinge is provided with a retractable rotating clamping mechanism for clamping the ultrasound probe. This utility model can automatically control the speed and displacement of the ultrasound probe's uniform linear motion, avoiding errors caused by human operation and improving the accuracy of diagnostic results. However, in the above patent, on the one hand, the retractable rotating clamping mechanism that clamps the ultrasonic probe is adjusted in length and angle and fixed before use, and a restoring force is applied to the patient's body through a spring hinge. During use, the angle rotation of the spring hinge may cause the ultrasonic probe to rotate, resulting in inaccurate test results; on the other hand, the patient stands in the standing space formed between the first vertical support and the second vertical support, and there is no unlimited position and auxiliary standing structure. During the examination, the patient's posture may change, resulting in inaccurate results. In addition, the spinal examination also requires the patient to maintain the previous standing posture when re-examining, so as to evaluate the scoliosis treatment situation. This requires the patient to be accurately positioned each time the examination is conducted to ensure the accuracy and efficiency of the examination. The above patent cannot achieve the reproduction of the patient's examination posture. Utility Model Content

[0004] In order to solve the above-mentioned deficiencies in the prior art, the utility model provides an ultrasonic automatic scanning medical imaging device with a simple structure, a high degree of automation, low manufacturing and maintenance costs, and high inspection accuracy.

[0005] In order to achieve the above technical purpose, the technical solution adopted by this utility model is:

[0006] An ultrasonic automatic scanning medical imaging device includes a vertical backboard and a movable limiting column. A rectangular hollow hole running through the front and back is vertically opened in the middle of the vertical backboard, and a plurality of jacks are opened in a matrix on both sides of the hollow hole. The movable limiting column is detachably connected to the jack; a motor guide rail module is vertically installed in the hollow hole of the vertical backboard, and the motor guide rail module controls the movable mechanism to perform linear reciprocating motion up and down. An ultrasonic transducer is slidably connected in the movable mechanism, and the ultrasonic transducer is connected to the automatic telescopic mechanism of the probe; and a control system is also included. The control system is electrically connected to the motor guide rail module and the automatic telescopic mechanism of the probe, and is used to control the movement of the ultrasonic transducer and record and feedback the position information of the ultrasonic transducer.

[0007] Furthermore, the movable mechanism includes a front shell, a base, and a tail cover. The front shell is arranged at one end of the base, and the tail cover is arranged on the outer periphery of the other end of the base. A groove is provided at the front end of the front shell, and the ultrasonic transducer is slidably arranged in the groove. One end of the ultrasonic transducer protrudes from the groove of the front shell, and the other end is fixedly connected to the automatic telescopic mechanism of the probe. In the initial state, the ultrasonic transducer probe is extended the longest distance.

[0008] Preferably, the automatic telescopic mechanism of the probe includes a linear bearing, a linear optical axis, and an elastic module. The linear bearing is horizontally fixed inside the groove of the front shell, the linear optical axis is passed through the linear bearing, and the ultrasonic transducer is connected to one end of the elastic module arranged in the tail cover through the linear optical axis, and the other end of the elastic module is fixedly connected to the front shell; the elastic module includes a constant force spring, one end of the spring is fixed to the middle core shaft, the middle core shaft is connected to the linear optical axis, and the other end of the spring is fixed on the front shell, and the spring controls the telescopic movement of the ultrasonic transducer through the linear optical axis; and also includes a second displacement sensor for measuring the horizontal position of the ultrasonic transducer.

[0009] Furthermore, the ultrasonic transducer is fixed on the fixed seat A, which is slidably arranged in the groove of the front shell. The side of the fixed seat A away from the ultrasonic transducer is fixedly connected to the linear optical axis, and the other end of the linear optical axis is fixedly connected to the fixed seat B through the linear bearing, and the middle core shaft of the coil spring is fixedly connected to the fixed seat B.

[0010] Another preferred, the probe automatic telescopic mechanism includes a reduction motor, a second screw mechanism and a pressure sensor, the ultrasonic transducer is fixed to the slide of the second screw mechanism, the pressure sensor is used for monitoring the pressure of the human body back spine on the ultrasonic transducer, and the monitoring value is sent to the control system, the control system controls the rotation of the reduction motor to drive the screw rod of the second screw mechanism to rotate, thereby driving the ultrasonic transducer to move linearly with the slide of the second screw mechanism, so that the ultrasonic transducer is extended or retracted until the value monitored by the pressure sensor reaches the preset value range.

[0011] Further, the activity mechanism is provided with a retraction mechanism, the front shell is slidingly connected with the base, the retraction mechanism comprises an electric telescopic rod, the electric telescopic rod is fixedly arranged on the base, the movable end of the electric telescopic rod is fixedly connected with the front shell of the activity mechanism, a horizontal slide rail is further arranged on the base, a sliding block is slidingly connected with the slide rail, and the sliding block is fixedly connected with the front shell; the retraction mechanism is electrically connected with the control system, and is used for synchronous extension and retraction of the front shell and the ultrasonic transducer.

[0012] Further, the motor guide rail module comprises a screw mechanism, a first linear guide rail, a motor and a first displacement sensor, the screw mechanism and the first linear guide rail are respectively arranged on the two sides of the hollow hole of the vertical back plate, a guide sliding block is arranged on the first linear guide rail, and the two sides of the activity mechanism are fixedly connected with the slide of the screw mechanism and the guide sliding block on the first linear guide rail; the motor is connected below the screw mechanism, and the first displacement sensor is arranged below the motor; the first displacement sensor is used for measuring the vertical position of the ultrasonic transducer in the activity mechanism.

[0013] Further, the activity limiting column is composed of a limiting head and a limiting body, the limiting head and the limiting body are square, the limiting head and the limiting body are designed as an eccentric quadrilateral, and the limiting head is used for being connected with the jack.

[0014] Preferably, one side of the limiting body away from the limiting head is provided with a distinguishing mark, and the distinguishing mark is a number or a letter.

[0015] Further, the lower part of the vertical back plate is provided with a foot pedal, a foot limiting baffle is arranged in the middle of the foot pedal, and the foot limiting baffle is coincident with the central axis of the vertical back plate; handrails are arranged on the two sides of the vertical back plate.

[0016] The ultrasonic automatic scanning medical imaging device has the advantages that:

[0017] The ultrasonic automatic scanning medical imaging device has the advantages that:

[0018] The ultrasonic automatic scanning medical imaging device of the present invention accurately obtains probe position information by adding displacement sensors in the horizontal and vertical directions, thereby providing a data source for subsequent three-dimensional reconstruction.

[0019] In the ultrasonic automatic scanning medical imaging device of the present invention, the automatic retractable mechanism of the probe provides constant pressure on the human body, thereby obtaining high-quality ultrasonic scanning images; the front shell of the ultrasonic transducer and the movable mechanism can automatically retract to avoid abnormal contact between the ultrasonic transducer and the human body before or after the detection begins.

[0020] This new ultrasonic automatic scanning medical imaging device features a vertical backrest design that allows patients to maintain an upright posture during the examination, improving patient comfort. The adjustable movable limit posts and foot limit baffles allow for precise positioning based on the patient's body shape and posture, controlling the patient's examination posture and ensuring repeatability, thereby improving examination accuracy. The limit posts feature an eccentric quadrilateral design, allowing for fine-tuning of the limit width and height, further assisting with precise positioning.

[0021] The ultrasonic automatic scanning medical imaging device of the utility model has a simple motion mechanism design, does not occupy space, and has low manufacturing and maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 It is an overall schematic diagram of the utility model;

[0024] Figure 2 This is a schematic diagram of the motor rail module;

[0025] Figure 3 It is a sign of the activity organization Figure 1 ;

[0026] Figure 4 It is a sign of the activity organization Figure 2 ;

[0027] Figure 5 It is an exploded diagram of the active mechanism;

[0028] Figure 6 It is a cross-sectional view of the movable mechanism;

[0029] Figure 7It is a cross-sectional schematic diagram of the movable mechanism in the extended state;

[0030] Figure 8 It is a cross-sectional schematic diagram of the movable mechanism in the retracted state;

[0031] Figure 9 It is a schematic diagram of the movable limit column.

[0032] Figure markings: 1-vertical back plate, 2-movable limiting column, 21-differentiating mark, 22-limiting head, 23-limiting body, 3-foot limiting baffle, 4-handrail, 5-motor guide rail module, 51-screw mechanism, 52-first linear guide rail, 53-motor, 54-first displacement sensor, 55-guide slider, 56-slide seat, 6-movable mechanism, 61-front shell, 62-base, 63-tail cover, 611-linear bearing, 612-linear optical axis, 613-fixed seat A, 614-fixed seat B, 64-elastic module, 641-coil spring, 642-middle core shaft, 65-electric telescopic rod, 66-slide rail, 661-slider, 67-second displacement sensor, 7-ultrasonic transducer. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. The components of the embodiments of the present application generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application for protection, but merely represents the selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0034] The present invention provides an ultrasonic automatic scanning medical imaging device, which includes a vertical backboard 1 and a movable limiting column 2. The vertical backboard 1 has a rectangular hollow hole extending vertically from front to back, and a plurality of sockets are provided on both sides of the hollow hole in a matrix. The movable limiting column 2 is detachably connected to the socket. The height and width can be adjusted by changing the socket position of the movable limiting column 2 in the vertical backboard 1 to limit the shoulders and hips of the human body. A motor guide module 5 is vertically installed in the hollow hole of the vertical backboard 1. The motor guide module 5 controls the movable mechanism 6 to perform linear reciprocating motion up and down. An ultrasonic transducer 7 is slidably connected to the movable mechanism 6, and the ultrasonic transducer 7 is connected to the automatic telescopic mechanism of the probe. The device also includes a control system, which is electrically connected to the motor guide module 5 and the automatic telescopic mechanism of the probe and is used to control the movement of the ultrasonic transducer and record and feedback the position information of the ultrasonic transducer.

[0035] Furthermore, the movable mechanism 6 includes a front shell 61, a base 62, and a tail cover 63. The front shell 61 is located at one end of the base 62, and the tail cover 63 is located around the outer periphery of the other end of the base 62. The front end of the front shell 61 is provided with a groove, and the ultrasonic transducer 7 is slidably located within the groove. One end of the ultrasonic transducer 7 protrudes from the groove of the front shell 61, and the other end is fixedly connected to the probe automatic retractable mechanism. In the initial state when the ultrasonic transducer 7 is not in contact with the human body, the ultrasonic transducer 7 extends the longest distance. When the probe contacts the human spine, the probe is squeezed and automatically retracts under the action of the probe automatic retractable mechanism, so that the probe is closely aligned with the curve of the spine in real time.

[0036] In a specific embodiment, the automatic telescopic mechanism of the probe includes a linear bearing 611, a linear optical axis 612, and an elastic module 64. The linear bearing 611 is horizontally fixed inside the groove of the front shell 61, and the linear optical axis 612 is passed through the linear bearing 611. The ultrasonic transducer 7 is connected to one end of the elastic module 64 arranged in the tail cover 63 through the linear optical axis 612, and the other end of the elastic module 64 is fixedly connected to the front shell 61. The elastic module 64 generates a flexible pulling force to realize the axial telescopic extension of the ultrasonic transducer 7 along the linear bearing 611 to ensure that the ultrasonic transducer 7 is close to the spinal curve in real time during detection; a second displacement sensor 67 is also provided in the movable mechanism 6 for measuring the horizontal position of the ultrasonic transducer 7. Preferably, the linear bearings 611 and the linear optical axis 612 are provided in two pairs, one on each side of the groove. Preferably, the elastic module 64 includes a constant force coil spring 641, one end of which is fixed to an intermediate core shaft 642, which is connected to the linear optical axis 612, and the other end of which is fixed to the front shell 61. The coil spring 641 controls the extension and retraction of the ultrasonic transducer 7 through the linear optical axis 612. Preferably, the ultrasonic transducer 7 is fixed to a fixing seat A613, which is slidably arranged in the groove of the front shell. The side of the fixing seat A613 away from the ultrasonic transducer 7 is fixed to the linear optical axis 612, and the other end of the linear optical axis 612 passes through the linear bearing 611 and is fixed to the fixing seat B614. The intermediate core shaft 642 of the coil spring 641 is fixed to the fixing seat B614. In the initial state, the end face of the linear bearing 611 abuts the fixing seat B614. When the ultrasonic transducer 7 isn't in contact with the human body, the probe extends the longest. When the probe contacts the human spine, it is squeezed and retracts, pushing the fixed base B backward through the linear optical axis, causing the coil spring to tighten. The coil spring then naturally retracts, generating a spring force to counteract the squeezing force. After the squeezing force subsides, the spring's rebound force pushes the ultrasonic transducer 7 back into place, allowing the probe to adhere to the curve of the spine in real time. The difference between a coil spring and a compression spring is that the greater the pressure on a compression spring, the greater the resistance it generates. A coil spring, however, exerts a nearly constant force throughout its entire range of motion, making it more conducive to ultrasonic scanning and imaging.

[0037] In another specific embodiment, the probe automatic retractable mechanism includes a reduction motor, a second screw mechanism and a pressure sensor, the ultrasonic transducer is fixedly connected to the slide of the second screw mechanism, and the pressure sensor is used to monitor the pressure exerted on the ultrasonic transducer by the human spine and send the monitored value to the control system. The control system controls the reduction motor to rotate and drive the screw of the second screw mechanism to rotate, thereby driving the ultrasonic transducer to move linearly along the slide of the second screw mechanism, so that the ultrasonic transducer extends or retracts until the value monitored by the pressure sensor reaches a preset value range. Of course, the reduction motor and the second screw mechanism can also be replaced by an electric cylinder, a pull rod, or a linear slide structure, as long as the structure can realize the linear motion of the ultrasonic transducer. The pressure sensor can also be replaced by an optical ranging sensor, which is installed at the front end of the movable mechanism to monitor the distance between the movable mechanism and the human spine in real time and adjust the position of the ultrasonic transducer through the control system to keep it close to the spine curve.

[0038] Furthermore, a retraction mechanism is further provided in the movable mechanism 6, and the front shell 61 is slidably connected to the base 62. The retraction mechanism includes an electric telescopic rod 65, which is fixed on the base 62. The movable end of the electric telescopic rod 65 is fixedly connected to the front shell 61 of the movable mechanism. A horizontal slide rail 66 is further provided on the base 62. A slider 661 is slidably connected to the slide rail 66. The slider 661 is fixedly connected to the front shell 61. The electric telescopic rod 65 retracts and extends through the forward and reverse rotation of the motor, driving the front shell 61 to move along with the slider 661. It makes a linear motion along the slide rail 66, and the linear bearing 611 on the front shell 61 pushes the fixed seat B614 to move together. The fixed seat B614 pulls the fixed seat A613 and the ultrasonic transducer 7 installed on the fixed seat A613 through the linear optical axis 612 to move, so that the front shell and the ultrasonic transducer of the movable mechanism retract and extend at the same time. The retracted ultrasonic transducer 7 does not protrude from the panel of the vertical backboard 1, avoiding abnormal contact between the ultrasonic transducer and the human body before the detection starts or after the detection is completed.

[0039] The motor guide rail module 5 includes a screw mechanism 51, a first linear guide rail 52, a first motor 53 and a first displacement sensor 54. The screw mechanism 51 and the first linear guide rail 52 are respectively located on both sides of the hollow hole of the vertical backboard 1. A guide slider 55 is provided on the first linear guide rail 52. The two ends of the movable mechanism 6 are respectively fixedly connected to the slide 56 of the screw mechanism 51 and the guide slider 55 on the first linear guide rail 52. The first motor 53 is connected below the screw mechanism 51. The first motor 53 drives the screw of the screw mechanism 51 to rotate, thereby driving the slide 56, the guide slider 55 and the movable mechanism 6 to move up and down. A first displacement sensor 54 is set below the first motor 53 for measuring the vertical position of the ultrasonic transducer 7 in the movable mechanism 6.

[0040] The control system is electrically connected to the electric telescopic rod, the first motor, the first displacement sensor, and the second displacement sensor, receives signals input from the first displacement sensor and the second displacement sensor, controls the movement of the ultrasonic transducer, including position and speed, and simultaneously records and feeds back ultrasonic transducer position information during the scanning process, providing a data source for subsequent three-dimensional reconstruction.

[0041] Furthermore, the movable limit column 2 is composed of a limit head 22 and a limit body 23. The limit head 22 is used to connect with the socket, and the limit body 23 is used to directly contact the human body to limit the posture position. The limit head 22 is square, and the square structure can ensure that it does not rotate after insertion; more preferably, the limit head 22 and the limit body 23 are designed in an eccentric quadrilateral. The eccentric setting of the limit head 22 and the limit body 23 can rotate the angle of the movable limit column 2 to assist in fine-tuning the limit width, that is, each socket has 4 adjustable width levels when combined with the movable limit column 2, making the limit more precise; preferably, the gradient of each level is 20mm. A distinguishing mark 21 is provided on the side of the limit body 23 away from the limit head 22. The distinguishing mark 21 can be a number or a letter. The distinguishing mark is used to quickly determine the adjustment gear corresponding to a patient, facilitating recording and accurate position reproduction. Preferably, the distribution height range of the sockets on the vertical backboard 1 is 0.5m to 1.8m, which meets the detection requirements of people with a height of 1m to 2m.

[0042] The vertical backboard 1 is provided with a footrest at the bottom, and a foot stop baffle 3 is provided in the middle of the footrest. The foot stop baffle 3 coincides with the central axis of the vertical backboard 1. The foot stop baffle 3 and the movable stop column 2 are used together to ensure that the body can be positioned in the center of the vertical backboard 1. The vertical backboard 1 is provided with handrails 4 on both sides. The handrails 4 are used to prevent the body from tilting forward when the probe contacts the body during the detection process and to assist in body positioning.

[0043] The ultrasonic automatic scanning medical imaging device of the present invention, when in use, the patient stands in front of the vertical backboard, with his back against the vertical backboard, his two feet standing on both sides of the foot limit baffle of the foot pedal, holding the handrail rod to maintain the posture, and the patient's posture is accurately positioned by adjusting the up, down, left, and right positions and the rotation angle of the movable limit rod to adjust different gears; then the control system inputs the detection starting height and ending height, and the movable mechanism carrying the ultrasonic transducer moves to the starting height under the drive of the motor guide module, and the ultrasonic transducer automatically extends from the vertical backboard under the action of the retraction mechanism, and then starts to scan from top to bottom under the drive of the motor guide module. After reaching the ending height, the ultrasonic transducer automatically retracts into the vertical backboard under the action of the retraction mechanism. During the scanning process, the ultrasonic transducer automatically retracts and contracts according to the shape of the human spine under the drive of the probe automatic retraction mechanism, and the probe is close to the spine curve in real time.

[0044] Of course, the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, technicians familiar with the field may make various corresponding changes and modifications based on the present invention, but these corresponding changes and modifications should all fall within the scope of protection of the claims attached to the present invention.

Claims

1. An ultrasonic automatic scanning medical imaging device, characterized by: The invention comprises a vertical back plate (1) and a movable limiting column (2), wherein a rectangular hollow hole is vertically opened in the middle of the vertical back plate (1) and runs through the front and back, and a plurality of jacks are opened in a matrix on both sides of the hollow hole, and the movable limiting column (2) is detachably connected to the jack; a motor guide rail module (5) is vertically installed in the hollow hole of the vertical back plate (1), and the motor guide rail module (5) controls the movable mechanism (6) to perform linear reciprocating motion up and down, and an ultrasonic transducer (7) is slidably connected in the movable mechanism (6), and the ultrasonic transducer (7) is connected to the automatic telescopic mechanism of the probe; and a control system is also included, wherein the control system is electrically connected to the motor guide rail module (5) and the automatic telescopic mechanism of the probe, and is used to control the movement of the ultrasonic transducer and record and feed back the position information of the ultrasonic transducer.

2. The ultrasonic automatic scanning medical imaging device according to claim 1, characterized in that: The movable mechanism (6) comprises a front shell (61), a base (62), and a tail cover (63). The front shell (61) is arranged at one end of the base (62), and the tail cover (63) is arranged on the outer periphery of the other end of the base (62). A groove is provided at the front end of the front shell (61), and the ultrasonic transducer (7) is slidably arranged in the groove. One end of the ultrasonic transducer (7) protrudes from the groove of the front shell (61), and the other end is fixedly connected to the automatic telescopic mechanism of the probe. In the initial state, the ultrasonic transducer (7) probe is extended to the longest distance.

3. The ultrasonic automatic scanning medical imaging device according to claim 2, characterized in that: The automatic telescopic mechanism of the probe comprises a linear bearing (611), a linear optical axis (612), and an elastic module (64); the linear bearing (611) is fixedly arranged horizontally inside the groove of the front shell (61); the linear optical axis (612) is passed through the linear bearing (611); the ultrasonic transducer (7) is connected to one end of the elastic module (64) arranged in the tail cover (63) through the linear optical axis (612); the other end of the elastic module (64) is fixed to the front shell (61). The elastic module (64) includes a constant force coil spring (641), one end of the coil spring (641) is fixed to an intermediate core shaft (642), the intermediate core shaft (642) is connected to a linear optical axis (612), and the other end of the coil spring (641) is fixed to the front shell (61), and the coil spring (641) controls the expansion and contraction of the ultrasonic transducer (7) through the linear optical axis (612); and also includes a second displacement sensor (67) for measuring the horizontal position of the ultrasonic transducer (7).

4. The ultrasonic automatic scanning medical imaging device according to claim 3, characterized in that: The ultrasonic transducer (7) is fixed on a fixing seat A (613), which is slidably arranged in a groove of the front shell. The side of the fixing seat A (613) away from the ultrasonic transducer (7) is fixedly connected to a linear optical axis (612), and the other end of the linear optical axis (612) passes through a linear bearing (611) and is fixedly connected to a fixing seat B (614). The middle core shaft (642) of the coil spring (641) is fixedly connected to the fixing seat B (614).

5. The ultrasonic automatic scanning medical imaging device according to claim 2, characterized in that: The automatic telescopic mechanism of the probe includes a reduction motor, a second screw mechanism and a pressure sensor. The ultrasonic transducer is fixedly connected to the slide of the second screw mechanism. The pressure sensor is used to monitor the pressure exerted on the ultrasonic transducer by the human spine and send the monitoring value to the control system. The control system controls the reduction motor to rotate and drive the screw of the second screw mechanism to rotate, thereby driving the ultrasonic transducer to move linearly with the slide of the second screw mechanism, so that the ultrasonic transducer extends or retracts until the value monitored by the pressure sensor reaches a preset value range.

6. The ultrasonic automatic scanning medical imaging device according to claim 2, characterized in that: The movable mechanism (6) is provided with a retraction mechanism, the front shell (61) is slidably connected to the base (62), the retraction mechanism includes an electric telescopic rod (65), the electric telescopic rod (65) is fixed on the base (62), the movable end of the electric telescopic rod (65) is fixedly connected to the front shell (61) of the movable mechanism, a horizontal slide rail (66) is further provided on the base (62), a slider (661) is slidably connected to the slide rail (66), and the slider (661) is fixedly connected to the front shell (61). The retraction mechanism is electrically connected to the control system and is used for the synchronous extension and retraction of the front shell and the ultrasonic transducer.

7. The ultrasonic automatic scanning medical imaging device according to claim 1, characterized in that: The motor guide rail module (5) comprises a screw mechanism (51), a first linear guide rail (52), a motor (53) and a first displacement sensor (54). The screw mechanism (51) and the first linear guide rail (52) are respectively located on both sides of the hollow hole of the vertical back plate (1). A guide slider (55) is provided on the first linear guide rail (52). Both sides of the movable mechanism (6) are respectively fixedly connected to the slide seat (56) of the screw mechanism (51) and the guide slider (55) on the first linear guide rail (52). The motor (53) is connected below the screw mechanism (51). The first displacement sensor (54) is provided below the motor (53). The first displacement sensor (54) is used to measure the vertical position of the ultrasonic transducer (7) in the movable mechanism (6).

8. The ultrasonic automatic scanning medical imaging device according to claim 1, characterized in that: The movable limiting column (2) is composed of a limiting head (22) and a limiting body (23); the limiting head (22) and the limiting body (23) are square and eccentrically quadrilateral; the limiting head (22) is used for connecting with a socket.

9. The ultrasonic automatic scanning medical imaging device according to claim 8, characterized in that: A distinguishing mark (21) is provided on a side of the limiting body (23) away from the limiting head (22), and the distinguishing mark (21) is a number or a letter.

10. The ultrasonic automatic scanning medical imaging device according to claim 1, characterized in that: The lower part of the vertical backboard (1) is provided with a foot pedal, the middle of the foot pedal is provided with a foot limit baffle (3), and the foot limit baffle (3) coincides with the central axis of the vertical backboard (1); and handrails (4) are provided on both sides of the vertical backboard (1).

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