Three-dimensional ultrasonic imaging probe auxiliary control device

Abstract

The utility model relates to the field of ultrasonic inspection, in particular to a three-dimensional ultrasonic imaging probe auxiliary control device which comprises a base, end plates are arranged at the two ends of the base respectively, a lead screw is arranged between the end plates, a sliding block is arranged on the lead screw in a penetrating mode, the sliding block abuts against the base to form a friction pair, and a motor is arranged at one end of the base and is in transmission connection with the lead screw. According to the three-dimensional ultrasonic imaging probe auxiliary control device, a large mechanical arm and a position sensor are not needed, and the cost is reduced; doctors do not need to operate the probe for a long time and joint disease risks of doctors are reduced; due to the fact that resistance information is fed back by the pressure sensor, constant-speed advancing can be kept during human body surface scanning.

Description

Technical Field

[0001] The utility model relates to the field of ultrasonic inspection, in particular to an auxiliary control device for a three-dimensional ultrasonic imaging probe. Background Art

[0002] In the field of medical imaging, the existing imaging technologies mainly include ultrasound imaging, CT imaging, and MRI imaging. Among them, ultrasound imaging has the advantages of being non-radioactive, capable of real-time imaging, and relatively cheap equipment. Medical ultrasound imaging is divided into two-dimensional ultrasound and three-dimensional ultrasound. Two-dimensional ultrasound imaging can only display the cross-sectional information of an object, and cannot directly observe the entire object. Three-dimensional ultrasound can directly display the three-dimensional information of an object, allowing users to observe the entire object. There are many three-dimensional ultrasound imaging systems, but they all need to make trade-offs in imaging accuracy, system cost, flexibility and portability, and imaging range. For example, a mechanical system can obtain highly accurate three-dimensional images, but its size is large and difficult to carry. The sensorless free-arm three-dimensional ultrasound system is simple, portable, and highly flexible, but the system cannot obtain position information, and the imaging results depend on the operator's proficiency. The sensor-equipped free-arm three-dimensional ultrasound system can obtain position information, but the sensor is expensive, and it takes time to calibrate before each scan. The two-dimensional array probe can directly obtain three-dimensional data, but the imaging range is limited.

[0003] From the above content, it can be found that the main reason why three-dimensional ultrasound cannot be widely used in the existing technology is that high-quality three-dimensional ultrasound equipment is expensive and only large hospitals have it; however, the inexpensive free-arm three-dimensional ultrasound requires ultrasound physicians with many years of scanning experience, and long scanning operations will increase the risk of doctors getting joint diseases. Utility Model Content

[0004] The utility model aims to provide a three-dimensional ultrasonic imaging probe auxiliary control device to address the problems in the prior art that a free-arm three-dimensional ultrasonic system cannot obtain position information, the imaging result depends on the operator's proficiency, has high requirements on the operator's skills and experience, has high economic costs, and increases the risk of the operator suffering from joint diseases.

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

[0006] A three-dimensional ultrasonic imaging probe auxiliary control device comprises a base, end plates are respectively provided at both ends of the base, a screw rod is provided between the end plates, a slider is passed through the screw rod, the slider abuts against the base to form a friction pair, a motor is provided at one end of the base, the motor is connected to the screw rod, and the motor can drive the screw rod to rotate, thereby driving the slider to slide.

[0007] The three-dimensional ultrasonic imaging probe auxiliary control device is provided with a base, and then baffles are provided at both ends of the base, a screw rod is provided between the baffles, the slider is slidably provided on the screw rod, and the motor is connected to the screw rod in a transmission manner. When the motor drives the screw rod to rotate, since the slider abuts against the base to form a friction pair, the screw rod drives the slider to slide back and forth along the direction of the screw rod, and the resistance information is fed back by the pressure sensor to dynamically adjust the motor speed, so that the slider can maintain a uniform speed even when it is obstructed. The imaging accuracy required by medical ultrasonic imaging can be met, the operator's skills and experience requirements are reduced, and the imaging result can be stably maintained at high quality.

[0008] As a preferred solution of the utility model, at least one first mounting hole is provided on the top of the sliding block, and the first mounting hole is provided for fixing and installing the ultrasonic transducer.

[0009] As a preferred embodiment of the utility model, an ultrasonic transducer is provided on the slider, a pressure sensor is provided on the ultrasonic transducer, an ultrasonic probe is connected to the bottom of the base, and the slider is provided with the ultrasonic transducer so that the ultrasonic transducer can maintain a uniform and stable movement as the slider moves.

[0010] As a preferred solution of the present invention, the sliding speed of the slider is V, 6m / s≥V≥4m / s. The speed of the slider is set to 6m / s≥V≥4m / s in order to meet the appropriate acquisition speed to ensure that the image acquisition effect is optimal.

[0011] As a preferred solution of the utility model, the screw rod is transmission-connected to the end shaft of the motor via a coupling, and the arrangement of the coupling enables a stable transmission connection between the motor and the screw rod to ensure that the rotation speed of the screw rod can remain stable and accurate.

[0012] As a preferred solution of the utility model, a mounting bracket is provided on the motor, and the mounting bracket is provided for mounting the motor on the base.

[0013] As a preferred solution of the utility model, a limiting slide rod is respectively arranged on both sides of the screw rod, and the slider is inserted into the limiting slide rod. The setting of the limiting slide rod enables the slider to remain stable during the sliding process without deflection or dislocation.

[0014] As a preferred embodiment of the present invention, a limit switch is provided on at least one side of the two end plates. The limit switch is provided so that when the slider slides from one end to the other end, after abutting against the limit switch, the motor stops rotating and starts rotating in the opposite direction, so as to enable the slider to slide back and forth.

[0015] As a preferred solution of the utility model, at least one second mounting hole is provided at the bottom of the base, and the second mounting hole is provided to facilitate the installation of the base on the ultrasonic probe.

[0016] As a preferred solution of the utility model, the length of the base is D, 30mm≤D≤60mm. Since the ultrasonic probe is used by hand, it is necessary to make the size of the base as small as possible while satisfying the functional requirements.

[0017] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0018] The three-dimensional ultrasonic imaging probe auxiliary control device is provided with a base, and then baffles are provided at both ends of the base, a screw rod is provided between the baffles, the slider is slidably provided on the screw rod, and the motor is connected to the screw rod. When the motor drives the screw rod to rotate, since the slider abuts against the base to form a friction pair, the screw rod will drive the slider to slide back and forth along the direction of the screw rod, and since it is driven by a motor, the moving speed of the slider can be kept stable to meet the imaging accuracy required by medical ultrasonic imaging, reducing the operator's skill and experience requirements, without the need for a large mechanical arm and position sensor, and reducing costs; there is no need for doctors to operate the probe for a long time, reducing the risk of joint diseases for doctors; because there is a pressure sensor to feedback resistance information, it can maintain a uniform speed when scanning the human body surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0020] Figure 2 It is a schematic diagram of the planar structure of the utility model.

[0021] Figure 3 It is a side structural schematic diagram of the utility model.

[0022] Figure 4 The utility model is a flow chart of the method of use.

[0023] Markings in the figure: 1-base, 2-end plate, 3-screw, 4-slider, 5-limiting slide, 6-motor, 7-mounting bracket, 8-coupling, 9-first mounting hole, 10-second mounting hole, 11-ultrasonic probe. DETAILED DESCRIPTION

[0024] The utility model is described in detail below in conjunction with the accompanying drawings.

[0025] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0026] Example 1

[0027] like Figure 1 , Figure 2 , Figure 3 As shown, a three-dimensional ultrasonic imaging probe auxiliary control device includes a base 1, end plates 2 are respectively provided at both ends of the base 1, a screw rod 3 is provided between the end plates 2, a slider 4 is passed through the screw rod 3, the slider 4 abuts against the base 1 to form a friction pair, and a motor 6 is provided at one end of the base 1, the motor 6 is connected to the screw rod 3 for transmission, and the motor 6 can drive the screw rod 3 to rotate, thereby driving the slider 4 to slide.

[0028] Those skilled in the art can understand that the three-dimensional ultrasonic imaging probe auxiliary control device is provided by setting a base 1, and then setting baffles at both ends of the base 1, a screw rod 3 is provided between the baffles, the slider 4 is slidably provided on the screw rod 3, and the motor 6 is connected to the screw rod 3 by transmission. When the motor 6 drives the screw rod 3 to rotate, since the slider 4 abuts against the base 1 to form a friction pair, the screw rod 3 will drive the slider 4 to slide back and forth along the direction of the screw rod 3, and since it is driven by the motor 6, the moving speed of the slider 4 can be kept stable to meet the imaging accuracy required by medical ultrasonic imaging, reduce the high requirements on the operator's skills and experience, and the imaging result can be stably maintained at high quality.

[0029] In a preferred embodiment, at least one first mounting hole 9 is disposed on the top of the slider 4. Specifically, the slider 4 is in the shape of a cuboid, and four first mounting holes 9 are disposed on the top of the slider 4, and the first mounting holes 9 are arranged in a matrix.

[0030] Those skilled in the art will appreciate that the first mounting hole 9 is provided for fixedly mounting the ultrasonic transducer.

[0031] In a preferred embodiment, an ultrasonic transducer is disposed on the slider 4 , a pressure sensor is disposed on the ultrasonic transducer, and an ultrasonic probe 11 is connected to the bottom of the base 1 .

[0032] Those skilled in the art can understand that the slider 4 is provided with the ultrasonic transducer so that the ultrasonic transducer can maintain a uniform and stable movement along with the movement of the slider 4 .

[0033] In a preferred embodiment, the sliding speed of the slider 4 is V, 6m / s≥V≥4m / s.

[0034] Those skilled in the art can understand that setting the speed of the slider 4 to 6 m / s ≥ V ≥ 4 m / s is to meet a suitable acquisition speed to ensure that the image acquisition effect is optimal.

[0035] In a preferred embodiment, the screw rod 3 is transmission-connected to the end shaft of the motor 6 via a coupling 8 .

[0036] Those skilled in the art can understand that the arrangement of the coupling 8 enables a stable transmission connection between the motor 6 and the screw rod 3 to ensure that the rotation speed of the screw rod 3 can remain stable and accurate.

[0037] In a preferred embodiment, a mounting bracket 7 is provided on the motor 6 .

[0038] Those skilled in the art can understand that the mounting bracket 7 is provided to mount the motor 6 on the base 1 .

[0039] In a preferred embodiment, a limiting slide rod 5 is respectively arranged on both sides of the screw rod 3 , and the slider 4 is inserted into the limiting slide rod 5 .

[0040] Those skilled in the art can understand that the setting of the limiting sliding rod 5 enables the sliding block 4 to remain stable during the sliding process without deflection or misalignment.

[0041] In a preferred embodiment, a limit switch is provided on at least one side of the two end plates 2 .

[0042] Those skilled in the art will appreciate that the limit switch is set so that when the slider 4 slides from one end to the other, the motor 6 stops rotating after abutting against the limit switch. In addition, the operator can also end the movement in advance through the controller to achieve the purpose of scanning only the target area.

[0043] In a preferred embodiment, at least one second mounting hole 10 is provided at the bottom of the base 1. Specifically, the bottom of the base 1 is in a rectangular shape, and four second mounting holes 10 are provided at the bottom of the base 1, and the second mounting holes 10 are arranged in a matrix.

[0044] Those skilled in the art can understand that the second mounting hole 10 is provided to facilitate mounting the base 1 on the ultrasonic probe 11 .

[0045] In a preferred embodiment, the length of the base 1 is D, 30 mm ≤ D ≤ 60 mm.

[0046] Those skilled in the art will appreciate that, since the ultrasonic probe 11 is used by hand, it is necessary to make the size of the base 1 as small as possible while satisfying the functional requirements.

[0047] Example 2

[0048] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, a specific method for using a three-dimensional ultrasonic imaging probe auxiliary control device.

[0049] When using the three-dimensional ultrasonic imaging probe auxiliary control device for scanning, first set the initial speed, determine the scanning area, and then start scanning by pressing the start button. For a small area, just place the probe on the scanning area and wait for the scanning to end. For a large area, first divide the imaging area, formulate a scanning trajectory according to the imaging area, and divide the trajectory into n acquisition points according to the slide rail stroke. The second step is to let the auxiliary control scan scan within the stroke until the scanning ends. The third step is to move the handle to the next acquisition point. In addition, during the scanning process, the operator can observe the acquisition status and scanning speed in real time through the LED display. Finally, when the slider 4 hits the limit switch, the scanning stops. In addition, in order to meet different scanning requirements and make the scanning range more flexible, the scanning can be stopped at any time by pressing the stop button during the scanning process to avoid scanning outside the target area, so as to get rid of the limitation of the track length. In addition, due to close contact with the patient's skin, resistance will be generated during the scanning process. The three-dimensional ultrasonic imaging probe auxiliary control device also feeds back resistance information through a pressure sensor, and dynamically adjusts the speed of the motor 6 according to the resistance information, so that the probe can maintain uniform motion without being affected by the power supply.

[0050] In practice, it is often necessary to use different types of ultrasonic probes 11 according to different situations, such as linear array probes, convex array probes, etc. The difference between different probes is mainly the difference in their internal ultrasonic transducers, but the existing ultrasonic probes 11 all seal the ultrasonic transducers inside the ultrasonic probe 11 shell, which is difficult to replace. If you want to use other types of ultrasonic probes 11, you can only buy the entire ultrasonic probe 11, but in fact, the two ultrasonic probes 11 are only different in the internal ultrasonic transducers. In response to this problem, this method of use directly removes the ultrasonic transducer and fixes it on the slider 4. If a different type of probe is needed, the ultrasonic transducer on the slider 4 is directly replaced, which saves a lot of costs.

[0051] Therefore, unlike existing scanning methods, the three-dimensional ultrasound imaging probe auxiliary control device not only solves the problem that traditional scanning methods need to make trade-offs in terms of cost, portability, calibration time, imaging range and the need for skilled ultrasound physicians, but also innovatively adds the functions of acquisition status display and probe replacement. These two functions further reduce the cost of scanning equipment and the difficulty of operators getting started.

[0052] In the description of the specific embodiments of the present invention, unless otherwise specified, the terms indicating the orientation or position relationship such as "upper", "lower", "left", "right", "center", "inside", "outside", etc. are all expressions based on the orientation or position relationship shown in the drawings, or the orientation or position relationship of the product / equipment / device of the utility model when it is usually used. These terms of orientation or position relationship are only for the convenience of describing the scheme of the utility model or simplifying the description in the specific embodiments, so that technicians can quickly understand the scheme, rather than indicating or implying that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific position relationship, and therefore cannot be understood as a limitation on the present invention.

[0053] In addition, if the terms "horizontal", "vertical", "overhanging", "parallel" and the like appear, it does not mean that the corresponding devices / components / elements are required to be absolutely horizontal or vertical or overhanging or parallel, but may be slightly tilted or have deviations. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but may be slightly tilted. Alternatively, it can be simplified to mean that the corresponding devices / components / elements are set in directions such as "horizontal", "vertical", "overhanging", "parallel", etc., and can have an error / deviation of ±10% relative to the corresponding direction setting, more preferably an error / deviation within ±8%, more preferably an error / deviation within ±6%, more preferably an error / deviation within ±5%, and more preferably an error / deviation within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its role in the solution of the utility model.

[0054] In addition, the expressions “first”, “second”, “third”, etc. that appear in the terms are merely descriptions used to distinguish the same or similar components and should not be understood as emphasizing or implying the relative importance of specific components.

[0055] In addition, in the description of the embodiments of the present invention, "several", "multiple" and "a number" represent at least 2. It can be any number such as 2, 3, 4, 5, 6, 7, 8, 9, and even more than 9.

[0056] In addition, in the description of the technical solution of the utility model, unless otherwise clearly specified / defined / restricted, the terms "set", "install", "connect", "connected", "provided with", "laid", and "arranged" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, and can be welding, riveting, bolting, threading, and other commonly used connection means in the field. This connection can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be the internal communication of two components.

[0057] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A three-dimensional ultrasonic imaging probe auxiliary control device, characterized in that: The invention comprises a base (1), end plates (2) are respectively arranged at both ends of the base (1), a screw rod (3) is arranged between the end plates (2), a slider (4) is passed through the screw rod (3), the slider (4) abuts against the base (1) to form a friction pair, and a motor (6) is arranged at one end of the base (1), the motor (6) is connected to the screw rod (3) in a transmission manner, and the motor (6) can drive the screw rod (3) to rotate, thereby driving the slider (4) to slide.

2. The three-dimensional ultrasonic imaging probe auxiliary control device according to claim 1, characterized in that: At least one first mounting hole (9) is provided on the top of the sliding block (4).

3. The three-dimensional ultrasonic imaging probe auxiliary control device according to claim 1, characterized in that: The slider (4) is provided with an ultrasonic transducer, the ultrasonic transducer is provided with a pressure sensor, and the bottom of the base (1) is connected with an ultrasonic probe (11).

4. The three-dimensional ultrasonic imaging probe auxiliary control device according to claim 1, characterized in that: The sliding speed of the slider (4) is V, 6m / s≥V≥4m / s.

5. The three-dimensional ultrasonic imaging probe auxiliary control device according to claim 1, characterized in that: The screw rod (3) is drivingly connected to the end shaft of the motor (6) via a coupling (8).

6. The three-dimensional ultrasonic imaging probe auxiliary control device according to claim 1, characterized in that: A mounting bracket (7) is provided on the motor (6).

7. The three-dimensional ultrasonic imaging probe auxiliary control device according to claim 1, characterized in that: A limiting slide rod (5) is respectively arranged opposite to each other on both sides of the screw rod (3), and the sliding block (4) is inserted into the limiting slide rod (5).

8. The three-dimensional ultrasonic imaging probe auxiliary control device according to claim 1, characterized in that: At least one side of the two end plates (2) is provided with a limit switch.

9. The three-dimensional ultrasonic imaging probe auxiliary control device according to claim 1, characterized in that: At least one second mounting hole (10) is provided at the bottom of the base (1).

10. The three-dimensional ultrasonic imaging probe auxiliary control device according to claim 1, characterized in that: The length of the base (1) is D, 30mm≤D≤60mm.

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