Medical ultrasonic imaging device and working method thereof

Abstract

The invention belongs to the technical field of ultrasonic imaging, and discloses a medical ultrasonic imaging device and a working method thereof.The medical ultrasonic imaging device comprises an ultrasonic imaging device body, a connecting line is fixedly installed on one side of the ultrasonic imaging device body, and an ultrasonic probe is fixedly installed at the end, away from the ultrasonic imaging device body, of the connecting line; a fixing ring groove is fixedly formed in the top end of the ultrasonic probe, a rack is arranged at the top end of the fixing ring groove, and guide blocks are fixedly mounted on the left side and the right side, close to the middle, of the bottom end of the rack. According to the device, the rotatable rack and the material injection assembly capable of moving up and down are matched with the transverse clamping block capable of moving front and back, so that the device can output a quantitative coupling agent, the coupling agent is rapidly and evenly spread after being output, the whole process is rapidly completed, the smearing amount of each time is the same, and the smearing efficiency is improved. Meanwhile, uniform smearing can be achieved, the use efficiency and use experience are effectively improved, and waste of the coupling agent is avoided.

Description

Technical Field

[0001] The present invention belongs to the technical field of ultrasonic imaging, and in particular relates to a medical ultrasonic imaging device and a working method thereof. Background Art

[0002] The working principle of medical ultrasonic imaging devices is mainly based on the physical properties of ultrasound. It sends high-frequency sound waves into the human body through an ultrasonic probe (also called an ultrasonic transmitter). These sound waves propagate in human tissue and are reflected when they encounter tissue interfaces with different densities or acoustic impedances. The reflected sound waves are received by the ultrasonic probe and converted into electrical signals. These electrical signals are processed by a computer to eventually generate images of the inside of the human body.

[0003] When using a conventional ultrasonic imaging device, an ultrasonic probe is required to assist in imaging. In order to improve the imaging effect, a coupling agent is usually applied to the probe. Generally, an external device is used for the application, resulting in a different amount of application each time. At the same time, it is impossible to achieve uniform application on the probe, which has a certain impact on use.

[0004] At the same time, after each use, the surface of the probe needs to be cleaned. In the prior art, an external device needs to be used, and a paper towel or other device needs to be used for cleaning, which easily causes waste of paper towels and requires a long cleaning time, and improvement is urgently needed. Summary of the invention

[0005] The object of the present invention is to provide a medical ultrasonic imaging device and a working method thereof to solve the problems raised in the above background technology.

[0006] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a medical ultrasonic imaging device, comprising an ultrasonic imaging device body, a connecting wire is fixedly installed on one side of the ultrasonic imaging device body, an ultrasonic probe is fixedly installed on the end of the connecting wire away from the ultrasonic imaging device body, a fixing ring groove is fixedly installed on the top of the ultrasonic probe, a frame is provided on the top of the fixing ring groove, guide blocks are fixedly installed on the left and right sides of the bottom end of the frame near the middle, the frame is movably connected between the guide blocks and the fixing ring groove, longitudinal guide rails are fixedly installed on the left and right sides of the frame, longitudinal clamping blocks are movably connected inside the longitudinal guide rails, locking frames are fixedly installed on the relatively distant sides of the two longitudinal clamping blocks, and injection components are fixedly sleeved inside the locking frames, and a mounting frame is provided at the rear of the frame, and the left and right sides of the front of the mounting frame penetrate the rear side of the longitudinal guide rail and are connected to the longitudinal clamping blocks.

[0007] Before use, it is necessary to ensure that the ultrasonic probe is correctly connected to the connecting line, and the two injection components correspond to the temporary storage of coupling agent and the temporary storage of cleaning agent respectively. The capacity inside the injection components just corresponds to the amount of coupling agent and cleaning agent used for a single time. Before testing, the coupling agent and cleaning agent need to be injected through the two injection components respectively to complete the preparation before the test.

[0008] As a further technical solution of the present invention, the guide block rotates relative to the fixed ring groove, and the top end of the longitudinal clamping block is fixedly installed with a reset spring located inside the longitudinal guide rail, and the top end of the reset spring is connected to the top end of the inner cavity of the longitudinal guide rail.

[0009] As a further technical solution of the present invention, the auxiliary component includes an L-shaped frame, the top of the L-shaped frame is connected to the middle of the bottom of the mounting frame, an operating handle is fixedly installed at the rear end of the L-shaped frame, a transverse slot is opened at the bottom end of the L-shaped frame, and a transverse block is movably connected to the bottom end of the transverse slot.

[0010] As a further technical solution of the present invention, a movable rod is movably connected to the bottom end of the transverse clamping block, and the movable rod rotates relative to the transverse clamping block. The movable rod is displaced forward and backward relative to the transverse clamping slot through the transverse clamping block.

[0011] As a further technical solution of the present invention, a homogenizing plate is fixedly installed at the front end of the movable rod, and a cleaning plate is fixedly installed at the rear end of the movable rod.

[0012] As a further technical solution of the present invention, when the reset spring is in the ultimate tension state, the mounting bracket is at the lowest point, and the top end of the homogenizing plate or the cleaning plate is in contact with the bottom end of the ultrasonic probe.

[0013] In the initial state, the reset spring is in a normal state. At this time, the mounting frame and the injection assembly are both at the highest point. When testing is required, the mounting frame can be pressed downward. At this time, the mounting frame can apply downward pressure to the two longitudinal blocks, which drives the reset spring to be stretched. At this time, the two locking frames will drop accordingly, and simultaneously drive the auxiliary assembly at the bottom of the mounting frame and the injection assembly inside the locking frame to drop. When the reset spring is stretched to the limit position, the current state is maintained.

[0014] As a further technical solution of the present invention, the injection assembly includes a injection groove, the outer side surface of the injection groove is fixedly sleeved with the locking frame, the interior of the injection groove is movably sleeved with a piston plate, the two injection grooves respectively store coupling agent and cleaning agent, and the bottom end of the injection groove is extended to the bottom end position of the ultrasonic probe through a hose.

[0015] As a further technical solution of the present invention, the top end of the piston plate is fixedly connected to a piston rod located inside the injection groove, the top end of the piston rod passes through the top end of the injection groove, the outer side surface of the piston rod is movably sleeved with a limit spring, and the upper and lower ends of the limit spring are respectively connected to the top end of the inner cavity of the injection groove and the top end of the piston plate.

[0016] When coupling agent needs to be injected, the piston rod on one side can be pressed, which will drive the piston plate to move downward and stretch the limit spring, thereby generating pressure inside the injection tank to discharge all the coupling agent inside and input it to the bottom end of the ultrasonic probe through the hose at the bottom. When cleaning agent needs to be injected, the piston rod on the other side can be pressed to discharge all the cleaning agent to the bottom end of the ultrasonic probe.

[0017] After the injection of the coupling agent is completed, since the mounting frame has dropped to the lowest point and there is no obstruction at the front end of the homogenizing plate, the lateral block can be moved forward to allow the homogenizing plate to move forward until the lateral block can no longer move forward. At this time, the homogenizing plate can cover one side of the bottom end of the ultrasonic probe, and by controlling the circumferential rotation of the mounting frame, the frame can rotate relative to the fixed ring groove, thereby completing the circumferential rotation of the homogenizing plate relative to the bottom end of the ultrasonic probe, and thus evenly spreading the coupling agent.

[0018] By utilizing a rotatable frame and an injection assembly that can be moved up and down in conjunction with a transverse clamp that can be moved forward and backward, the device can output a fixed amount of coupling agent and quickly spread the coupling agent evenly after the coupling agent is output. The entire process is completed quickly, which not only ensures that the amount of application is the same each time, but also allows for uniform application, effectively improving usage efficiency and user experience and avoiding waste of coupling agent.

[0019] At the same time, when the detection is completed, the above steps can be taken to export the cleaning agent. After the cleaning agent is exported, the movable rod can be rotated to one hundred and eighty degrees to rotate the cleaning plate to the front end of the horizontal clamping block. At this time, the horizontal clamping block is continued to be pushed forward so that the cleaning plate is located at the bottom end of the ultrasonic probe, and the circumferential rotation of the mounting frame is continued. At this time, the cleaning plate can rotate circumferentially relative to the ultrasonic probe, and the cleaning process of the bottom end of the ultrasonic probe can be completed with the cleaning agent.

[0020] By reusing the rotatable frame and the injection assembly that can be moved up and down, and using the rotation of the movable rod to switch the homogenizing plate and the cleaning plate, the bottom end of the cleaning plate can contact the bottom end of the ultrasonic probe, so that it outputs a certain amount of cleaning agent and realizes a circumferential cleaning process. The whole process is completed quickly, avoiding the complicated cleaning process of traditional devices, and there is no need to use paper towels for cleaning, which shortens the cleaning time and improves the overall detection efficiency.

[0021] A working method of a medical ultrasonic imaging device comprises the following steps:

[0022] S1: Before use, pick up the ultrasonic probe and place the bottom end of one side injection assembly into the coupling agent tank. Pull up the piston rod to suck the coupling agent into the injection tank. Place the bottom end of the other side injection assembly into the cleaning agent tank and suck the cleaning agent into the injection tank. This completes the preparation work.

[0023] S2: When in use, the mounting frame can be pressed downward, and the two return springs are stretched, driving the two locking frames to descend, and the internal injection assembly descends accordingly. When the injection assembly descends to the lowest point, the coupling agent in the injection slot can be guided to the bottom surface of the ultrasonic probe by pressing the piston rod downward;

[0024] S3: After the coupling agent is injected, the horizontal clamp can be pushed forward so that the homogenizing plate is located at the bottom of the ultrasonic probe and contacts the bottom of the ultrasonic probe, and the mounting frame is driven to rotate circumferentially. At this time, the homogenizing plate rotates relative to the ultrasonic probe to evenly apply the coupling agent at the bottom. After the application is completed, it can be used;

[0025] S4: After the inspection is completed, repeat the above steps for the injection assembly on the other side, inject the cleaning agent into the bottom end of the ultrasonic probe, and at the same time, rotate the movable rod to make the cleaning plate contact with the bottom end of the ultrasonic probe, and then rotate the cleaning plate circumferentially again to clean the bottom end of the ultrasonic probe.

[0026] The beneficial effects of the present invention are as follows:

[0027] 1. The present invention utilizes a rotatable frame, an injection assembly that can be moved up and down, and a transverse clamp that can be moved forward and backward, so that the device can output a quantitative amount of coupling agent, and quickly spread the coupling agent evenly after the coupling agent is output. The whole process is completed quickly, which not only makes the amount of application the same each time, but also achieves uniform application, effectively improves the use efficiency and user experience, and avoids waste of coupling agent.

[0028] 2. The present invention reuses the rotatable frame and the injection assembly that can be moved up and down, and utilizes the rotation of the movable rod to switch the homogenizing plate and the cleaning plate, so that the bottom end of the cleaning plate can contact the bottom end of the ultrasonic probe, so that it outputs a quantitative cleaning agent and realizes a circumferential cleaning process. The whole process is completed quickly, avoiding the complicated cleaning process of traditional devices, and there is no need to use paper towels for cleaning, thereby shortening the cleaning time and improving the overall detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0030] Figure 2This is a schematic diagram of the present invention in which the main body of the ultrasonic imaging device is hidden;

[0031] Figure 3 It is a schematic diagram of the bottom end structure of the ultrasonic probe of the present invention;

[0032] Figure 4 This is a schematic diagram of the present invention in a state where the ultrasonic probe is hidden;

[0033] Figure 5 It is a separate exploded schematic diagram of the auxiliary component structure of the present invention;

[0034] Figure 6 It is a partial exploded schematic diagram of the bottom structure of the auxiliary component of the present invention;

[0035] Figure 7 It is a cross-sectional schematic diagram of the internal structure of the injection assembly of the present invention;

[0036] Figure 8 It is an exploded schematic diagram of the longitudinal guide rail and longitudinal block structure of the present invention.

[0037] In the figure: 1. ultrasonic imaging device body; 2. connecting line; 3. ultrasonic probe; 4. fixing ring groove; 5. frame; 6. guide block; 7. longitudinal guide rail; 8. mounting frame; 9. locking frame; 10. longitudinal clamping block; 11. reset spring; 12. auxiliary component; 121. L-shaped frame; 122. operating handle; 123. transverse clamping groove; 124. transverse clamping block; 125. movable rod; 126. homogenizing plate; 127. cleaning plate; 13. injection component; 131. injection tank; 132. piston plate; 133. piston rod; 134. limit spring. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] like Figures 1 to 8As shown, in an embodiment of the present invention, a medical ultrasonic imaging device includes an ultrasonic imaging device body 1, a connecting line 2 is fixedly installed on one side of the ultrasonic imaging device body 1, an ultrasonic probe 3 is fixedly installed on the end of the connecting line 2 away from the ultrasonic imaging device body 1, a fixed ring groove 4 is fixedly installed on the top of the ultrasonic probe 3, a frame 5 is provided on the top of the fixed ring groove 4, guide blocks 6 are fixedly installed on the left and right sides of the bottom of the frame 5 near the middle, the frame 5 is movably connected with the fixed ring groove 4 through the guide blocks 6, longitudinal guide rails 7 are fixedly installed on the left and right sides of the frame 5, longitudinal clamping blocks 10 are movably connected inside the longitudinal guide rails 7, locking frames 9 are fixedly installed on the sides of the two longitudinal clamping blocks 10 that are relatively far away, and injection components 13 are fixedly sleeved inside the locking frames 9, and a mounting frame 8 is provided at the rear of the frame 5, and the left and right sides of the front of the mounting frame 8 pass through the rear side of the longitudinal guide rail 7 and are connected to the longitudinal clamping blocks 10.

[0040] Before use, it is necessary to ensure that the ultrasonic probe 3 is correctly connected to the connecting line 2, and the two injection components 13 are respectively used for temporary storage of coupling agent and temporary storage of cleaning agent, and the capacity inside the injection component 13 just corresponds to the amount of coupling agent and cleaning agent used for a single time. Before the test, the coupling agent and cleaning agent need to be injected through the two injection components 13 respectively to complete the preparation before the test.

[0041] like Figure 4 as well as Figure 5 and Figure 6 as well as Figure 8 As shown, the guide block 6 rotates relative to the fixed annular groove 4, the top of the longitudinal clamping block 10 is fixedly installed with a reset spring 11 located inside the longitudinal guide rail 7, the top of the reset spring 11 is connected to the top of the inner cavity of the longitudinal guide rail 7, the auxiliary component 12 includes an L-shaped frame 121, the top of the L-shaped frame 121 is connected to the middle of the bottom end of the mounting frame 8, the rear end of the L-shaped frame 121 is fixedly installed with an operating handle 122, the bottom end of the L-shaped frame 121 is provided with a transverse clamping groove 123, the bottom end of the transverse clamping groove 123 is movably clamped with the transverse clamping block 12 4. The bottom end of the transverse clamping block 124 is movably connected with a movable rod 125, and the movable rod 125 rotates relative to the transverse clamping block 124. The movable rod 125 moves forward and backward relative to the transverse clamping groove 123 through the transverse clamping block 124. A homogenizing plate 126 is fixedly installed at the front end of the movable rod 125, and a cleaning plate 127 is fixedly installed at the rear end of the movable rod 125. When the reset spring 11 is in the ultimate tension state, the mounting frame 8 is at the lowest point, and the top end of the homogenizing plate 126 or the cleaning plate 127 contacts the bottom end of the ultrasonic probe 3.

[0042] In the initial state, the reset spring 11 is in a normal state. At this time, the mounting frame 8 and the injection assembly 13 are both at the highest point. When testing is required, the mounting frame 8 can be pressed downward. At this time, the mounting frame 8 can apply downward pressure to the two longitudinal blocks 10, that is, the reset spring 11 is stretched. At this time, the two locking frames 9 descend accordingly, and simultaneously drive the auxiliary assembly 12 at the bottom of the mounting frame 8 and the injection assembly 13 inside the locking frame 9 to descend. When the reset spring 11 is stretched to the limit position, the current state is maintained.

[0043] like Figure 2 and Figure 3 as well as Figure 4 and Figure 7 As shown, the injection assembly 13 includes an injection tank 131, the outer side surface of the injection tank 131 is fixedly sleeved with the locking frame 9, the inner part of the injection tank 131 is movably sleeved with a piston plate 132, the two injection tanks 131 store coupling agent and cleaning agent respectively, the bottom end of the injection tank 131 is extended to the bottom end position of the ultrasonic probe 3 through a hose, the top end of the piston plate 132 is fixedly connected with a piston rod 133 located inside the injection tank 131, the top end of the piston rod 133 passes through the top end of the injection tank 131, the outer side surface of the piston rod 133 is movably sleeved with a limit spring 134, and the upper and lower ends of the limit spring 134 are respectively connected to the top of the inner cavity of the injection tank 131 and the top end of the piston plate 132.

[0044] Embodiment: When it is necessary to inject coupling agent, the piston rod 133 on one side can be pressed, and the piston plate 132 can be driven downward, and the limit spring 134 can be stretched, so that pressure can be generated inside the injection tank 131, and all the coupling agent inside can be discharged and input to the bottom end of the ultrasonic probe 3 through the hose at the bottom end. When it is necessary to inject cleaning agent, it is only necessary to press the piston rod 133 on the other side to discharge all the cleaning agent to the bottom end of the ultrasonic probe 3.

[0045] After the injection of the coupling agent is completed, since the mounting frame 8 has dropped to the lowest point and there is no obstruction at the front end of the homogenizing plate 126, the transverse block 124 can be moved forward to allow the homogenizing plate 126 to move forward until the transverse block 124 can no longer move forward. At this time, the homogenizing plate 126 can cover one side of the bottom end of the ultrasonic probe 3, and by controlling the circumferential rotation of the mounting frame 8, the frame 5 can rotate relative to the fixed ring groove 4, thereby completing the circumferential rotation of the homogenizing plate 126 relative to the bottom end of the ultrasonic probe 3, and then evenly spreading the coupling agent.

[0046] By utilizing the rotatable frame 5, and the injection assembly 13 that can be moved up and down in conjunction with the transverse clamping block 124 that can be moved forward and backward, the device can output a quantitative amount of coupling agent, and quickly spread the coupling agent evenly after the coupling agent is output. The entire process is completed quickly, which not only ensures that the amount of application is the same each time, but also enables uniform application, effectively improving the use efficiency and user experience, and avoiding waste of coupling agent.

[0047] Embodiment: At the same time, when the detection is completed, the above steps can be taken to export the cleaning agent. After the cleaning agent is exported, the movable rod 125 can be rotated to one hundred and eighty degrees to rotate the cleaning plate 127 to the front end of the horizontal block 124. At this time, the horizontal block 124 is continued to be pushed forward so that the cleaning plate 127 is located at the bottom end of the ultrasonic probe 3, and the mounting frame 8 is continued to be controlled to rotate circumferentially. At this time, the cleaning plate 127 can rotate circumferentially relative to the ultrasonic probe 3, and the cleaning process of the bottom end of the ultrasonic probe 3 can be completed with the cleaning agent.

[0048] By reusing the rotatable frame 5 and the injection assembly 13 that can be moved up and down, the homogenizing plate 126 and the cleaning plate 127 are switched by rotating the movable rod 125, so that the bottom end of the cleaning plate 127 can contact the bottom end of the ultrasonic probe 3, so that it outputs a quantitative cleaning agent and realizes a circumferential cleaning process. The whole process is completed quickly, avoiding the complicated cleaning process of traditional devices, and there is no need to use paper towels for cleaning, thereby shortening the cleaning time and improving the overall detection efficiency.

[0049] A working method of a medical ultrasonic imaging device comprises the following steps:

[0050] S1: Before use, pick up the ultrasonic probe 3 and place the bottom end of the injection assembly 13 on one side in the coupling agent tank. Pull up the piston rod 133 to suck the coupling agent into the injection tank 131. Place the bottom end of the injection assembly 13 on the other side in the cleaning agent tank and suck the cleaning agent into the injection tank 131. The preparation is complete.

[0051] S2: When in use, the mounting frame 8 can be pressed downward, and the two return springs 11 are stretched, driving the two locking frames 9 to descend, and the internal injection assembly 13 is then lowered. When the injection assembly 13 descends to the lowest point, the coupling agent in the injection tank 131 can be guided to the bottom surface of the ultrasonic probe 3 by pressing the piston rod 133 downward;

[0052] S3: After the coupling agent is injected, the lateral clamping block 124 can be pushed forward so that the homogenizing plate 126 is located at the bottom end of the ultrasonic probe 3 and contacts the bottom end of the ultrasonic probe 3, and the mounting frame 8 is driven to rotate circumferentially. At this time, the homogenizing plate 126 rotates relative to the ultrasonic probe 3 to evenly apply the coupling agent on the bottom end. After the application is completed, the coupling agent can be used.

[0053] S4: After the inspection is completed, repeat the above steps for the injection assembly 13 on the other side, inject the cleaning agent into the bottom end of the ultrasonic probe 3, and at the same time, rotate the movable rod 125 to make the cleaning plate 127 contact with the bottom end of the ultrasonic probe 3, and then rotate the cleaning plate 127 circumferentially again to clean the bottom end of the ultrasonic probe 3.

[0054] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A medical ultrasonic imaging device, comprising an ultrasonic imaging device body (1), characterized in that: A connecting line (2) is fixedly mounted on one side of the ultrasonic imaging device body (1); an ultrasonic probe (3) is fixedly mounted on one end of the connecting line (2) away from the ultrasonic imaging device body (1); a fixed ring groove (4) is fixedly mounted on the top of the ultrasonic probe (3); a frame (5) is provided on the top of the fixed ring groove (4); guide blocks (6) are fixedly mounted on both left and right sides of the bottom end of the frame (5) near the middle; the frame (5) is movably connected between the guide blocks (6) and the fixed ring groove (4). The left and right sides of the frame (5) are fixedly mounted with longitudinal guide rails (7), the interior of the longitudinal guide rails (7) are movably connected with longitudinal clamping blocks (10), the two longitudinal clamping blocks (10) are fixedly mounted with locking frames (9) on the sides relatively far away from each other, the interior of the locking frames (9) are fixedly sleeved with injection components (13), and a mounting frame (8) is provided at the rear of the frame (5), and the left and right sides of the front of the mounting frame (8) penetrate the rear side of the longitudinal guide rail (7) and are connected to the longitudinal clamping blocks (10).

2. A medical ultrasonic imaging device according to claim 1, characterized in that: The guide block (6) rotates relative to the fixed annular groove (4), and a return spring (11) located inside the longitudinal guide rail (7) is fixedly installed on the top end of the longitudinal clamping block (10), and the top end of the return spring (11) is connected to the top end of the inner cavity of the longitudinal guide rail (7).

3. A medical ultrasonic imaging device according to claim 2, characterized in that: The auxiliary component (12) comprises an L-shaped frame (121), the top end of the L-shaped frame (121) is connected to the middle of the bottom end of the mounting frame (8), an operating handle (122) is fixedly mounted on the rear end of the L-shaped frame (121), a transverse clamping groove (123) is provided at the bottom end of the L-shaped frame (121), and a transverse clamping block (124) is movably clamped at the bottom end of the transverse clamping groove (123).

4. A medical ultrasonic imaging device according to claim 3, characterized in that: The bottom end of the transverse clamping block (124) is movably connected to a movable rod (125), the movable rod (125) rotates relative to the transverse clamping block (124), and the movable rod (125) moves forward and backward relative to the transverse clamping slot (123) through the transverse clamping block (124).

5. A medical ultrasonic imaging device according to claim 4, characterized in that: A homogenizing plate (126) is fixedly mounted on the front end of the movable rod (125), and a cleaning plate (127) is fixedly mounted on the rear end of the movable rod (125).

6. A medical ultrasonic imaging device according to claim 5, characterized in that: When the return spring (11) is in the ultimate tension state, the mounting frame (8) is at the lowest point, and the top end of the homogenizing plate (126) or the cleaning plate (127) is in contact with the bottom end of the ultrasonic probe (3).

7. A medical ultrasonic imaging device according to claim 6, characterized in that: The injection assembly (13) comprises an injection groove (131), the outer side surface of the injection groove (131) is fixedly sleeved with the locking frame (9), the interior of the injection groove (131) is movably sleeved with a piston plate (132), the two injection grooves (131) respectively store a coupling agent and a cleaning agent, and the bottom end of the injection groove (131) is extended to the bottom end position of the ultrasonic probe (3) through a hose.

8. A medical ultrasonic imaging device according to claim 7, characterized in that: The top end of the piston plate (132) is fixedly connected to a piston rod (133) located inside the injection groove (131); the top end of the piston rod (133) penetrates the top end of the injection groove (131); the outer side surface of the piston rod (133) is movably sleeved with a limit spring (134); the upper and lower ends of the limit spring (134) are respectively connected to the top end of the inner cavity of the injection groove (131) and the top end of the piston plate (132).

9. The working method of a medical ultrasonic imaging device according to claim 8, characterized in that: The following steps are involved: S1: Before use, the ultrasonic probe (3) can be picked up and the bottom end of the injection assembly (13) on one side can be placed in the coupling agent tank. The coupling agent can be sucked into the injection slot (131) by pulling up the piston rod (133). The bottom end of the injection assembly (13) on the other side can be placed in the cleaning agent tank and the cleaning agent can be sucked into the injection slot (131) to complete the preparation work. S2: When in use, the mounting frame (8) can be pressed downwards, whereupon the two return springs (11) are stretched and drive the two locking frames (9) to descend, whereupon the internal injection assembly (13) also descends. When the injection assembly (13) descends to the lowest point, the coupling agent in the injection slot (131) can be guided to the bottom surface of the ultrasonic probe (3) by pressing the piston rod (133) downwards; S3: After the coupling agent is injected, the lateral clamping block (124) can be pushed forward so that the homogenizing plate (126) is located at the bottom end of the ultrasonic probe (3) and contacts the bottom end of the ultrasonic probe (3), and the mounting frame (8) is driven to rotate in a circumferential direction. At this time, the homogenizing plate (126) rotates relative to the ultrasonic probe (3) to evenly apply the coupling agent on the bottom end. After the application is completed, the device can be used; S4: After the test is completed, the above steps are repeated for the injection assembly (13) on the other side, and the cleaning agent is injected into the bottom end of the ultrasonic probe (3). At the same time, the cleaning plate (127) is brought into contact with the bottom end of the ultrasonic probe (3) by rotating the movable rod (125), and the bottom end of the ultrasonic probe (3) is cleaned again by the circumferential rotation of the cleaning plate (127).

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