An ultrasonic transducer calibration and detection device applied to medical ultrasonic diagnosis

Abstract

The present invention relates to the technical field of ultrasonic transducer detection, and provides an ultrasonic transducer calibration and detection device applied to medical ultrasonic diagnosis, which includes a water bath test box, a measured sample block, a housing assembly, an adapter, a sealing part, a clamping part, a lateral displacement module, a longitudinal displacement module and an angle adjustment module. One side of the outer shell in the housing assembly is fixedly connected to a hollow shaft, and there is a first opening on the other side of the outer shell. A sealing cover is provided at one end of the outer shell. The worm gear and the fixing pin in the sealing part are both fixedly connected to the inner shell, and the inner shell is rotatably connected between the first opening and the sealing cover. The worm is in transmission connection with the worm gear. Protrusions are provided on the surface of the transmission ring in the clamping part, and the fixing pin contacts the surface of the protrusions. One end of the clamping piece is connected to the transmission ring, and the elastic sealing ring is connected to the other end of the clamping piece. The transmission ring is in sliding contact with the inner wall of the sealing cover. The clamping piece penetrates through the sealing cover, having the characteristics of being able to adaptively clamp and fix ultrasonic probes of different models and having good sealing effect.

Description

Technical Field

[0001] The present invention relates to the technical field of ultrasonic transducer detection, and specifically relates to an ultrasonic transducer calibration detection device applied to medical ultrasonic diagnosis. Background Art

[0002] The simulation calibration detection of ultrasonic transducers (ultrasonic probes) in medical ultrasonic diagnosis is an important link to ensure the quality of ultrasonic images and the accuracy of diagnosis. Through simulation, the performance of the transducer can be predicted in the design stage, its structure and function can be optimized, and the imaging quality can be improved.

[0003] After retrieval, the patent with publication number CN118067853B discloses an ultrasonic transducer detection device in a simulation environment, which includes a simulation environment model, a central rotation assembly, an integrated adjustment and testing assembly, and a computer testing system. The simulation environment model includes an electromagnetic radiation cavity, a high-temperature cavity, and a simulated biological fluid cavity. The rotating shell in the central rotation assembly is movably connected in the central cavity, and the first driving member is in transmission connection with the central tube. Four linear guide rails are arranged on the surface of the rotating shell. The accommodating groove in the integrated adjustment and testing assembly is used to place the ultrasonic transducer, and the driving part is in transmission connection with the second tooth groove to drive the ultrasonic transducer into the feeding cavity, the electromagnetic radiation cavity, the high-temperature cavity, or the simulated biological fluid cavity. The computer testing system is electrically connected to the ultrasonic transducer to detect the operating parameters or imaging quality of the ultrasonic transducer, and has the characteristics of convenient use, high testing efficiency, and more comprehensive, systematic, and real testing data.

[0004] The above-disclosed ultrasonic transducer detection device sequentially places the ultrasonic probe in multiple environments that affect its imaging quality for detection and obtains detection results. Although it can obtain more comprehensive test data, there are still the following defects: (1) The detection angle of the ultrasonic probe in each test environment cannot be adjusted. However, in actual use, the angle at which the ultrasonic probe emits ultrasonic waves is not fixed. For example, the ultrasonic knife probe used in surgery, the vaginal probe used in gynecological examinations, etc. all need to continuously adjust the angle during use to obtain more comprehensive image data of internal organs or tissues. (2) Considering that the data plugs of different models of ultrasonic probes are different, an adapter is generally required for connection. The ultrasonic probe inserts its own data plug into the data interface of the adapter. Limited by the length of the data plug, the adapter and the ultrasonic probe need to be immersed in the tissue fluid for detection (the principle of immersing in the simulated biological fluid cavity is the same as that of the water bath test, both are to simulate the propagation and reflection of ultrasonic waves in tissues or liquids, and predict the image quality by evaluating the sound field distribution of the transducer at different frequencies and in different media). In this way, due to the different shapes of different models of ultrasonic probes, the installation of the ultrasonic probe must meet the basic condition of being easy to disassemble and assemble. The existing clamping and fixing structure cannot stably support different models of ultrasonic probes and play a good sealing role at the same time. The connection between the ultrasonic probe and the adapter is prone to moisture, which affects the test results. If the adapter and the ultrasonic probe are installed in a sealed housing together, it will affect the ultrasonic wave emission of the ultrasonic probe. Therefore, it cannot meet the calibration detection of different models of ultrasonic probes. Summary of the Invention

[0005] The purpose of the present invention is to provide an ultrasonic transducer calibration detection device applied to medical ultrasonic diagnosis, aiming to solve the problems existing in the existing ultrasonic transducer detection device.

[0006] To achieve the above purpose, the present invention provides the following technical solution. An ultrasonic transducer calibration detection device applied to medical ultrasonic diagnosis includes a water bath test box, a measured sample block, a lateral displacement module, a longitudinal displacement module, and an angle adjustment module. The measured sample block is fixedly connected to the inner wall of the water bath test box. The angle adjustment module is connected to the longitudinal displacement module, and the longitudinal displacement module is connected to the lateral displacement module. It also includes:

[0007] A housing assembly, which includes a housing, a first opening, a sealing cover, and a hollow shaft. The angle adjustment module is connected to the hollow shaft. One side of the housing is fixedly connected to the hollow shaft. The other side of the housing is provided with a first opening. One end of the housing is provided with a sealing cover;

[0008] An adapter located inside the housing;

[0009] A sealing part, the sealing part includes an inner shell, a second opening, a worm gear, a fixing pin and a worm. Both the worm gear and the fixing pin are fixedly connected to the inner shell. The inner shell is rotatably connected between the first opening and the sealing cover. The worm is in transmission connection with the worm gear;

[0010] A clamping part, the clamping part includes a transmission ring, a protrusion, a clamping member and an elastic sealing ring. The surface of the transmission ring is provided with a protrusion. The fixing pin is in contact with the surface of the protrusion. One end of the clamping member is connected to the transmission ring. The elastic sealing ring is connected to the other end of the clamping member. The transmission ring is in sliding contact with the inner wall of the sealing cover. The clamping member penetrates through the sealing cover.

[0011] As a further scheme of the present invention, an arc-shaped guide rail is provided on the surface of the transmission ring, and a radial guide rail is provided inside the sealing cover. One end of the clamping member is slidably connected in the arc-shaped guide rail and the radial guide rail.

[0012] As a further scheme of the present invention, the clamping member includes a special-shaped clamping piece and a movable pin. One end of the special-shaped clamping piece is fixedly connected to the movable pin. The movable pin is slidably connected in the arc-shaped guide rail and the radial guide rail. The other end of the special-shaped clamping piece is connected to the elastic sealing ring. An elastic member is connected between the sealing cover and the movable pin.

[0013] As a further scheme of the present invention, grooves are provided at both ends of the elastic sealing ring. The special-shaped clamping piece is embedded in the grooves.

[0014] As a further scheme of the present invention, a sandwich layer is provided in the first opening. The inner shell is rotatably connected in the sandwich layer. A through hole communicating with the hollow shaft is provided inside the sandwich layer.

[0015] As a further scheme of the present invention, a card slot is provided inside the outer shell. A data transmission line is electrically connected inside the card slot. The data transmission line is connected to a computer analyzer. The adapter is embedded in the card slot. The outer shell is fixedly connected with heat dissipation fins. The heat dissipation fins are in contact with the card slot.

[0016] As a further scheme of the present invention, the water bath test box is fixedly connected with a water inlet pipe, a drain pipe, a water level sensor and a temperature and humidity sensor.

[0017] Advantages of the present invention: It can not only open the first opening and the elastic sealing ring by controlling the simultaneous rotation of the inner shell and the transmission ring through the worm, facilitating the connection of ultrasonic probes of different models to the adapter, but also, when closing the first opening, the special-shaped clamping piece and the elastic sealing ring can adaptively clamp and seal the ultrasonic probe. The special-shaped clamping piece made of rigid material and the elastic sealing ring made of flexible material can not only ensure the firm clamping of the ultrasonic probe but also ensure the sealing between the ultrasonic probe and the housing, thus preventing the problem of affecting the calibration and detection results due to moisture during the water bath detection process. It has the characteristics of adaptively clamping and fixing ultrasonic probes of different models and good sealing effect. Description of the Drawings

[0018] Figure 1 It is an assembly drawing of the longitudinal displacement module, angle adjustment module and housing assembly of the embodiment of the present invention.

[0019] Figure 2 It is a schematic exploded view of the housing assembly, adapter, sealing part and clamping part of the embodiment of the present invention.

[0020] Figure 3 It is a perspective view of the housing assembly of the embodiment of the present invention.

[0021] Figure 4 It is a perspective view of the sealing part of the embodiment of the present invention.

[0022] Figure 5 It is a schematic exploded view of the clamping part of the embodiment of the present invention.

[0023] Figure 6 It is a perspective view of the clamping part of the embodiment of the present invention.

[0024] Figure 7 It is a partial cross-sectional view of the present invention.

[0025] Figure 8 It is a partial plane cross-sectional view of the present invention.

[0026] Figure 9 It is a plane cross-sectional view of the present invention.

[0027] Figure 10 It is a schematic diagram for controlling the detection angle adjustment of the ultrasonic probe of the present invention.

[0028] Reference numerals: 1 - housing assembly, 11 - outer housing, 12 - card slot, 121 - heat dissipation fins, 13 - first opening, 14 - interlayer, 15 - sealing cover, 151 - radial guide rail, 152 - elastic member, 16 - data transmission line, 17 - hollow shaft, 18 - through hole;

[0029] 2 - adapter;

[0030] 3 - Sealing part, 31 - Inner shell, 311 - Second opening, 312 - Worm gear, 313 - Fixed pin, 32 - Worm, 321 - Knob;

[0031] 4 - Clamping part, 41 - Transmission ring, 411 - Arc-shaped guide rail, 412 - Protrusion, 42 - Clamping piece, 421 - Special-shaped clamping piece, 422 - Movable pin, 43 - Elastic sealing ring, 431 - Groove;

[0032] 5 - Water bath test box, 51 - Water inlet pipe, 52 - Drain pipe, 53 - Temperature and humidity sensor, 54 - Water level sensor, 6 - Lateral displacement module, 7 - Longitudinal displacement module, 8 - Angle adjustment module, 9 - Specimen block to be measured, 10 - Ultrasonic probe. Detailed implementation manners

[0033] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0034] The following describes in detail the specific implementation of the present invention with reference to specific embodiments.

[0035] Please refer to Figures 1 to 10 , in an embodiment of the present invention, an ultrasonic transducer calibration and detection device applied to medical ultrasonic diagnosis includes a water bath test box 5, a specimen block to be measured 9, a lateral displacement module 6, a longitudinal displacement module 7 and an angle adjustment module 8. The specimen block to be measured 9 is fixedly connected to the inner wall of the water bath test box 5. The angle adjustment module 8 is connected to the longitudinal displacement module 7, and the longitudinal displacement module 7 is connected to the lateral displacement module 6. It further includes:

[0036] A housing assembly 1, which includes a housing 11, a first opening 13, a sealing cover 15 and a hollow shaft 17. The angle adjustment module 8 is connected to the hollow shaft 17. One side of the housing 11 is fixedly connected to the hollow shaft 17. A first opening 13 is provided on the other side of the housing 11, and a sealing cover 15 is provided at one end of the housing 11;

[0037] An adapter 2 located inside the housing 11;

[0038] A sealing part 3, which includes an inner shell 31, a second opening 311, a worm gear 312, a fixed pin 313 and a worm 32. The worm gear 312 and the fixed pin 313 are both fixedly connected to the inner shell 31. The inner shell 31 is rotatably connected between the first opening 13 and the sealing cover 15. The worm 32 is in transmission connection with the worm gear 312. The first opening 13 and the second opening 311 facilitate the user to disassemble and assemble the ultrasonic probe 10 and the adapter 2;

[0039] The clamping part 4, the clamping part 4 includes a transmission ring 41, a protrusion 412, a clamping member 42 and an elastic sealing ring 43. The surface of the transmission ring 41 is provided with a protrusion 412. The fixed pin 313 contacts the surface of the protrusion 412. One end of the clamping member 42 is connected to the transmission ring 41. The elastic sealing ring 43 is connected to the other end of the clamping member 42. The transmission ring 41 is in sliding contact with the inner wall of the sealing cover 15. The clamping member 42 penetrates through the sealing cover 15.

[0040] Please refer to Figure 5 , Figure 6 and Figure 8 , further, an arc-shaped guide rail 411 is provided on the surface of the transmission ring 41, a radial guide rail 151 is provided inside the sealing cover 15, and one end of the clamping member 42 is slidably connected in the arc-shaped guide rail 411 and the radial guide rail 151.

[0041] Please refer to Figures 5 to 8 , further, the clamping member 42 includes a special-shaped clamping piece 421 and a movable pin 422. One end of the special-shaped clamping piece 421 is fixedly connected to the movable pin 422. The movable pin 422 is slidably connected in the arc-shaped guide rail 411 and the radial guide rail 151. The other end of the special-shaped clamping piece 421 is connected to the elastic sealing ring 43. An elastic member 152 is connected between the sealing cover 15 and the movable pin 422. The elastic member 152 includes a spring and a slider. The spring is connected between the sealing cover 15 and the slider. The slider is slidably connected in the radial guide rail 151. The movable pin 422 contacts the surface of the slider.

[0042] Please refer to Figure 3 and Figure 7 , further, a sandwich layer 14 is provided in the first opening 13, and the inner shell 31 is rotatably connected in the sandwich layer 14.

[0043] Please refer to Figure 9 , further, the water bath test box 5 is fixedly connected with a water inlet pipe 51, a drain pipe 52, a water level sensor 54 and a temperature and humidity sensor 53.

[0044] Please refer to Figure 9 , further, the lateral displacement module 6 includes a horizontal guide rail, a first lead screw and a horizontal slide table. The first lead screw and the horizontal slide table are located in the horizontal guide rail. The horizontal slide table is threadedly connected to the first lead screw.

[0045] Please refer to Figure 1 , further, the longitudinal displacement module 7 includes a longitudinal guide rail, a second lead screw and a longitudinal slide table. The second lead screw and the longitudinal slide table are located in the longitudinal guide rail. The longitudinal slide table is threadedly connected to the second lead screw. The hollow shaft is connected to the longitudinal slide table.

[0046] Please refer to Figure 1, Further, the angle adjustment module 8 includes a driving motor, a rotating tube, and a transmission gear. The rotating tube and the driving motor are both connected to the longitudinal guide rail. The driving motor controls the rotation of the rotating tube through the transmission gear. The matching structure between the hollow shaft and the rotating tube is a key and a keyway, enabling the hollow shaft to move along the rotating tube and rotate with the rotating tube. An angle sensor is installed on the surface of the rotating tube to control the emission angle of the ultrasonic probe 10. Displacement sensors are installed on both the horizontal sliding table and the longitudinal sliding table to control the alignment of the ultrasonic probe 10 with the center marking point of the sample block to be measured.

[0047] In an embodiment of the present invention, the geometric shape of the sample block 9 to be measured is a cylinder or a cube, and its material is alloy, plastic, or cement. Grooves 431 are provided at both ends of the elastic sealing ring 43, and the special-shaped clamping piece 421 is embedded in the groove 431. To prevent water from seeping into the gap between the special-shaped clamping piece 421 and the radial guide rail 151, the surface of the special-shaped clamping piece 421 and the inner wall of the radial guide rail 151 can be designed as smooth surfaces, or a linear contact can be designed between the special-shaped clamping piece 421 and the radial guide rail 151.

[0048] Please refer to Figure 3 , In an embodiment of the present invention, a card slot 12 is provided inside the outer shell 11. A data transmission line 16 is electrically connected inside the card slot 12. The data transmission line 16 is connected to a computer analyzer. The adapter 2 is embedded in the card slot 12. The outer shell 11 is fixedly connected with heat dissipation fins 121, and the heat dissipation fins 121 are in contact with the card slot 12.

[0049] In an embodiment of the present invention, the adapter 2 ensures that ultrasonic probes 10 of different models or types can be compatible with a specific ultrasonic system, thereby enabling effective signal transmission and data acquisition. The adapter 2 can conveniently connect different plug shapes and pins of different models of ultrasonic probes 10. When the ultrasonic probe 10 operates at high power for detection, the heat generated by the adapter 2 can be directly transferred to the water bath through the heat dissipation fins 121, featuring good heat dissipation. The design that a through hole 18 communicating with the hollow shaft 17 is provided inside the sandwich layer 14 enables, when the first opening 13 is closed, the heat to be discharged outward through the through hole 18 and the hollow shaft 17 based on the principle of natural upward movement of heat. A wireless data transmission module can also be installed inside the hollow shaft 17, solving the problem of being unable to transmit data to the computer software system using the wireless data transmission module in a sealed environment.

[0050] Working principle: Preparation before detection: First, use the knob 321 to control the clockwise rotation of the worm 32, the worm gear 312, and the inner shell 31, which is used to open the first opening 13 or control the second opening 311 to rotate towards the direction of the first opening 13. The clockwise rotating inner shell 31 uses the fixing pin 313 and the protrusion 412 to control the synchronous rotation of the transmission ring 41 by 180 degrees. Since the clockwise rotating transmission ring 41 drives the movable pin 422 to move along the radial guide 151 away from the axis of the outer shell 11 through the arc-shaped guide 411, the elastic member 152 is in a compressed state at this time. Therefore, several clamping members 42 moving radially can drive the elastic sealing ring 43 to expand or make a movement with a larger diameter. Then, place the ultrasonic probe 10 inside the elastic sealing ring 43 and select the corresponding data socket to connect with the adapter 2 according to the data plug model of the ultrasonic probe 10; then use the knob 321 to control the worm 32 to rotate counterclockwise by 180 degrees, which is used to control the inner shell 31 to seal the first opening 13. Since the counterclockwise rotating fixing pin 313 does not control the synchronous movement of the protrusion 412, the transmission ring 41 that loses the limit of the fixing pin 313 is driven by the double elastic forces of the elastic member 152 and the elastic sealing ring 43 to drive the special-shaped clamping piece 421 to make a radial movement. The special-shaped clamping piece 421 making a radial movement drives the transmission ring 41 to rotate counterclockwise through the movable pin 422 and the arc-shaped guide 411. On the one hand, the special-shaped clamping piece 421 made of rigid material and the elastic sealing ring 43 made of flexible material can not only ensure the stability of the clamping of the ultrasonic probe 10 but also ensure the sealing between the ultrasonic probe 10 and the outer shell 11, thus preventing the problem of moisture affecting the calibration and detection results during the water bath detection process. On the other hand, it can not only open the first opening 13 and the elastic sealing ring 43 at the same time for the installation of the ultrasonic probe 10, but also the special-shaped clamping piece 421 and the elastic sealing ring 43 can adaptively clamp and seal the ultrasonic probe 10 while closing the first opening 13, with the characteristics of being able to adaptively clamp and fix ultrasonic probes 10 of different models and having a good sealing effect.

[0051] Calibration and detection process: First, use the water inlet pipe 51 to input impurity-free water at a certain temperature into the water bath test chamber 5. Use the water level sensor 54 to monitor the liquid level height. Then, use the temperature and humidity sensor 53 to monitor the temperature and humidity parameters inside the water bath test chamber 5 respectively, to ensure that the temperature and humidity parameters are within a certain threshold range, preventing the formation of bubbles in the water due to a relatively high temperature and humidity environment, because the presence of bubbles will change the propagation characteristics of sound waves at the water-gas interface, thus affecting the measurement results of the transducer. Next, use the lateral displacement module 6 and the longitudinal displacement module 7 to adjust the coordinate position of the ultrasonic probe 10, to align the ultrasonic emission port of the ultrasonic probe 10 with the center marking point on the surface of the sample block 9 to be measured. Then, use the ultrasonic generator inside the ultrasonic probe 10 to send ultrasonic signals to the sample block 9 to be measured, and use the ultrasonic receiver inside the ultrasonic probe 10 to receive the ultrasonic signals and convert them into electrical signals. The electrical signals are transmitted to the computer analyzer through the adapter 2 and the data transmission line 16. Next, use the angle adjustment module 8 to control the ultrasonic probe 10 to rotate a certain angle around the hollow shaft 17, and use the above method to send signals to the sample block 9 to be measured again. Collect detection data by adjusting the angle of the ultrasonic probe 10 multiple times. It should be noted that between two tests, it is necessary to use the water level sensor 54 to monitor the water level change or the water level disturbance parameter in real time. When the water level disturbance parameter is within a certain threshold range, the next detection can be carried out. Use the computer analyzer to process and analyze the ultrasonic data, generate test results and reports, and ensure the measurement accuracy according to the calibrated ultrasonic measurement system.

[0052] In summary, by using the structural cooperation among the housing assembly 1, the sealing part 3, and the clamping part 4, the present application can not only open the first opening 13 and the elastic sealing ring 43 by controlling the simultaneous rotation of the inner shell 31 and the transmission ring 41 through the worm 32, facilitating the connection of ultrasonic probes 10 of different models to the adapter 2, but also, when closing the first opening 13, the special-shaped clamping piece 421 and the elastic sealing ring 43 can adaptively clamp and seal the ultrasonic probe 10. The special-shaped clamping piece 421 made of rigid material and the elastic sealing ring 43 made of flexible material can not only ensure the stability of the clamping of the ultrasonic probe 10, but also ensure the sealing between the ultrasonic probe 10 and the outer shell 11, thus preventing the problem of affecting the calibration detection results due to moisture absorption during the water bath detection process, and having the characteristics of adaptively clamping and fixing ultrasonic probes 10 of different models and good sealing effect.

[0053] For those skilled in the art, although several embodiments and examples of the present invention have been described, these embodiments and examples are presented as examples and are not intended to limit the scope of the invention. These new embodiments can be implemented in various other ways, and various omissions, substitutions, and changes can be made without departing from the gist of the invention.

[0054] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment contains only an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in various embodiments can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An ultrasonic transducer calibration and detection device applied to medical ultrasonic diagnosis, comprising a water bath test box (5), a sample block to be measured (9), a lateral displacement module (6), a longitudinal displacement module (7) and an angle adjustment module (8), wherein the sample block to be measured (9) is fixedly connected to the inner wall of the water bath test box (5), the angle adjustment module (8) is connected to the longitudinal displacement module (7), and the longitudinal displacement module (7) is connected to the lateral displacement module (6), characterized in that, Further included are: A housing assembly (1), the housing assembly (1) includes an outer shell (11), a first opening (13), a sealing cover (15) and a hollow shaft (17), the angle adjustment module (8) is connected to the hollow shaft (17), one side of the outer shell (11) is fixedly connected to the hollow shaft (17), the other side of the outer shell (11) is provided with a first opening (13), and one end of the outer shell (11) is provided with a sealing cover (15); An adapter (2) located inside the outer shell (11), the adapter (2) is used to connect ultrasonic probes (10) of different models; A sealing part (3), the sealing part (3) includes an inner shell (31), a second opening (311), a worm gear (312), a fixing pin (313) and a worm (32), the worm gear (312) and the fixing pin (313) are both fixedly connected to the inner shell (31), the inner shell (31) is rotatably connected between the first opening (13) and the sealing cover (15), the worm (32) is in transmission connection with the worm gear (312), when the first opening (13) and the second opening (311) are opened, it is convenient for ultrasonic probes (10) of different models to be connected to the adapter (2), when the first opening (13) is closed, it is convenient for heat to be discharged outward through the hollow shaft (17); A clamping part (4), the clamping part (4) includes a transmission ring (41), a protrusion (412), a clamping member (42) and an elastic sealing ring (43), the surface of the transmission ring (41) is provided with a protrusion (412), the surface of the transmission ring (41) is provided with an arc-shaped guide rail (411), the inner side of the sealing cover (15) is provided with a radial guide rail (151), one end of the clamping member (42) is slidably connected in the arc-shaped guide rail (411) and the radial guide rail (151), the fixing pin (313) is in contact with the surface of the protrusion (412), one end of the clamping member (42) is connected to the transmission ring (41), the elastic sealing ring (43) is connected to the other end of the clamping member (42), the clamping member (42) includes a special-shaped clamping piece (421) and a movable pin (422), one end of the special-shaped clamping piece (421) is fixedly connected to the movable pin (422), the movable pin (422) is slidably connected in the arc-shaped guide rail (411) and the radial guide rail (151), the other end of the special-shaped clamping piece (421) is connected to the elastic sealing ring (43), an elastic member (152) is connected between the sealing cover (15) and the movable pin (422), the transmission ring (41) is in sliding contact with the inner wall of the sealing cover (15), and the clamping member (42) penetrates through the sealing cover (15); The clockwise rotation of the inner shell (31) uses the fixing pin (313) and the protrusion (412) to control the synchronous rotation of the transmission ring (41) by (180) degrees, thereby driving the elastic sealing ring (43) to expand or increase in diameter. The counterclockwise rotation of the fixing pin (313) does not control the synchronous movement of the protrusion (412). The elastic member (152) and the elastic sealing ring (43) drive the transmission ring (41) to rotate counterclockwise through the movable pin (422) and the arc-shaped guide rail (411).

2. The ultrasonic transducer calibration and detection device applied to medical ultrasonic diagnosis according to claim 1, wherein Both ends of the elastic sealing ring (43) are provided with grooves (431), and the special-shaped clamping piece (421) is embedded in the grooves (431).

3. The ultrasonic transducer calibration and detection device applied to medical ultrasonic diagnosis according to claim 2, characterized in that A sandwich layer (14) is arranged in the first opening (13), the inner shell (31) is rotatably connected in the sandwich layer (14), and a through hole (18) communicated with the hollow shaft (17) is arranged on the inner side of the sandwich layer (14).

4. An ultrasonic transducer calibration and detection device applied to medical ultrasonic diagnosis according to claim 3, characterized in that, A clamping groove (12) is arranged on the inner side of the outer shell (11), a data transmission line (16) is electrically connected inside the clamping groove (12), the data transmission line (16) is connected with a computer analyzer, the adapter (2) is embedded in the clamping groove (12), and the outer shell (11) is fixedly connected with heat dissipation fins (121), and the heat dissipation fins (121) are in contact with the clamping groove (12).

5. An ultrasonic transducer calibration and detection device applied to medical ultrasonic diagnosis according to claim 1, characterized in that, The water bath test box (5) is fixedly connected with a water inlet pipe (51), a drain pipe (52), a water level sensor (54) and a temperature and humidity sensor (53).

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