Abrasion resistance testing device for acoustic lens of medical ultrasonic probe

Abstract

The utility model relates to the technical field of testing devices, and provides a medical ultrasonic probe acoustic lens wear resistance testing device, which comprises a driving assembly, the reciprocating rectilinear motion assembly is driven by the driving assembly to do reciprocating rectilinear motion, and the reciprocating rectilinear motion assembly is provided with a first mounting position for mounting an ultrasonic probe; the bottom plate is provided with a second mounting position for fixing the human body artificial leather; the enclosure assembly comprises a first scraping plate, a second scraping plate, a first enclosure piece and a second enclosure piece, and the first scraping plate, the first enclosure piece, the second scraping plate and the second enclosure piece sequentially define an enclosure space used for enclosure of the coupling agent; in the testing stage, the acoustic lens is located in the enclosure space, and the first scraper and the second scraper alternately push the coupling agent in the movement direction of the acoustic lens when the acoustic lens moves. In the testing process, it is not needed to manually adjust the position of the coupling agent and manually add the coupling agent, automatic adjustment of the position of the coupling agent is achieved, the testing efficiency is improved, and the manpower and material resource cost is saved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of testing devices, in particular to a medical ultrasonic probe acoustic lens abrasion testing device. BACKGROUND

[0002] The acoustic lens of a medical ultrasonic probe can protect the core of the ultrasonic probe and also has the function of acoustic focusing. In actual clinical ultrasonic diagnosis applications, the acoustic lens needs to be closely attached to the human skin and reciprocally moved, and after a long time, the acoustic lens will be abraded to different degrees. The abrasion of the acoustic lens will directly affect the focusing effect, and then affect the detection sensitivity and resolution of the ultrasonic probe, so it is necessary to judge and select some acoustic lens materials with good abrasion resistance to prepare the ultrasonic probe. Whether the acoustic lens has good abrasion resistance must be obtained through friction resistance testing. In the friction resistance testing, in order to simulate the use environment of the ultrasonic probe, a coupling agent needs to be arranged between the human simulation skin and the acoustic lens.

[0003] At present, the common acoustic lens friction testing device is reciprocally moved under the acoustic lens, and due to the close contact between the acoustic lens and the human simulation skin, the coupling agent smeared on the human simulation skin is taken to both ends of the reciprocally moving range by the acoustic lens, which needs to be manually adjusted or added to meet the acoustic lens friction testing conditions, which on the one hand has low automation degree and low testing efficiency, high labor cost, and on the other hand causes material waste. CONTENT OF THE INVENTION

[0004] In order to solve the above problems, the application provides a medical ultrasonic probe acoustic lens abrasion testing device, which is ingenious in design and simple in structure. The application surrounds the coupling agent by the surrounding space formed by the first scraper, the first surrounding part, the second scraper and the second surrounding part, and the first scraper and the second scraper can move synchronously with the acoustic lens, so that the coupling agent in the surrounding space is alternately pushed to the moving direction of the acoustic lens by the first scraper and the second scraper when the acoustic lens moves, so as to ensure that the friction testing conditions of the acoustic lens are met, and the position of the coupling agent does not need to be manually adjusted and the coupling agent does not need to be manually added during the testing process, so as to realize the automatic adjustment of the position of the coupling agent, improve the testing efficiency and save the labor and material costs. The technical scheme adopted by the application is as follows:

[0005] A medical ultrasonic probe acoustic lens abrasion testing device, comprising:

[0006] The drive assembly drives the reciprocating linear motion assembly to perform reciprocating linear motion, and the reciprocating linear motion assembly is provided with a first mounting position for mounting an ultrasonic probe; the bottom plate is provided with a second mounting position for fixing a human simulation skin; the enclosing assembly includes a first scraper, a second scraper, a first enclosing part and a second enclosing part, which are sequentially enclosed to form an enclosing space for enclosing coupling agent.

[0007] In the test phase, the acoustic lens of the ultrasonic probe is pressed against the human simulation skin, and the acoustic lens moves synchronously with the reciprocating linear motion assembly and rubs against the human simulation skin; in the test phase, the enclosing space is provided with the coupling agent, the acoustic lens is located in the enclosing space, the first scraper and the second scraper are arranged at intervals along the reciprocating linear motion direction of the acoustic lens, the first enclosing part and the second enclosing part are arranged at intervals along the direction perpendicular to the reciprocating linear motion of the acoustic lens, the first scraper and the second scraper move synchronously with the acoustic lens, and the first scraper and the second scraper abut against the human simulation skin, so that the first scraper and the second scraper alternately push the coupling agent in the direction of motion of the acoustic lens when the acoustic lens moves.

[0008] By arranging the enclosing assembly, the coupling agent is enclosed in the enclosing space formed by the first scraper, the first enclosing part, the second scraper and the second enclosing part in sequence, and the first scraper and the second scraper can move synchronously with the acoustic lens, so that the coupling agent in the enclosing space is alternately pushed in the direction of motion of the acoustic lens by the first scraper and the second scraper when the acoustic lens moves, and the friction test conditions of the acoustic lens are ensured, manual adjustment of the position of the coupling agent and manual addition of the coupling agent are not required in the test process, automatic adjustment of the position of the coupling agent is realized, the test efficiency is improved, and the cost of manpower and material resources is saved.

[0009] In some embodiments, the drive assembly includes a motor assembly, a rotating part and a connecting rod; the rotating part is installed on the rotating shaft of the motor assembly; one end of the connecting rod is rotatably connected to the rotating part, and the other end is rotatably connected to the reciprocating linear motion assembly; the rotating part, the connecting rod and the reciprocating linear motion assembly form a crank slider mechanism.

[0010] The reciprocating linear motion of the reciprocating linear motion assembly is realized by adopting the crank slider mechanism, which can reduce the machining precision requirement and machining difficulty of the drive assembly, and can also reduce the procurement cost of the drive assembly, in other words, the manufacturing and use cost of the drive assembly is reduced.

[0011] In some embodiments, the rotating member is provided with a plurality of connecting holes, the distance between the plurality of connecting holes and the rotating shaft of the motor assembly is different, and the connecting rod is connected to one of the plurality of connecting holes; by connecting the connecting rod to different connecting holes, the movement stroke of the reciprocating linear motion assembly can be adjusted.

[0012] By providing a plurality of connecting holes and the distance between each connecting hole and the rotating shaft of the motor assembly is different, the movement stroke of the reciprocating linear motion assembly is realized. When the reciprocating linear motion assembly needs to have a larger movement stroke, the connecting rod only needs to be connected to the connecting hole far away from the rotating shaft; when the reciprocating linear motion assembly needs to have a smaller movement stroke, the connecting rod only needs to be connected to the connecting hole close to the rotating shaft, thereby improving the versatility of the wear testing device.

[0013] In some embodiments, the crank slider mechanism formed by the rotating member, the connecting rod and the reciprocating linear motion assembly is a biased crank slider mechanism.

[0014] By using a biased crank slider mechanism, that is, the moving direction line of the rotating connection point between the connecting rod and the reciprocating linear motion assembly does not intersect with the rotating shaft (rotation center) of the motor assembly, compared with the concentric crank slider mechanism, the dead point position can be avoided, the risk of jamming of the driving assembly is reduced, and the stable operation of the wear testing device is ensured.

[0015] In some embodiments, the reciprocating linear motion assembly includes a sliding member, a fixed frame assembly; the driving assembly is connected to the sliding member and drives the sliding member to move linearly; the fixed frame assembly includes a connecting block, a guide rod and a probe mounting assembly, the connecting block is connected to the sliding member, the connecting block is provided with a guide hole, the guide rod is arranged in the guide hole, the guide rod is connected to the probe mounting assembly, and the first mounting position is arranged in the probe mounting assembly; the fixed frame assembly is also provided with a loading position, and a weight is placed in the loading position to apply a vertical downward force to the acoustic lens.

[0016] In some embodiments, the upper part of the guide rod is the loading position, and the weight is adapted to be arranged in the loading position.

[0017] By arranging the loading position on the guide rod, the guide rod has the functions of guiding the probe mounting assembly and lifting the weight, and there is no need to separately arrange the loading position on other positions of the fixed frame assembly, thereby simplifying the structure of the wear testing device and saving the manufacturing cost.

[0018] In some embodiments, the guide hole is a through hole, the guide rod is arranged in the guide hole and has two exposed ends, the lower part of the guide rod is connected to the probe mounting assembly, and the upper part of the guide rod is provided with a limiting portion, and when the weight is arranged in the upper part of the guide rod, the bottom end of the weight abuts against the limiting portion.

[0019] By arranging the limiting portion on the guide rod, the upper part of the guide rod can be arranged with weights of different hole diameters, and the adaptability of the guide rod to weights of different hole diameters is improved.

[0020] In some embodiments, the limiting portion is a flange.

[0021] In some embodiments, the first scraper and the second scraper are oppositely arranged on both sides of the probe mounting assembly.

[0022] By arranging the first scraper and the second scraper on the probe mounting assembly, the first scraper and the second scraper can both move linearly and reciprocally synchronously with the probe mounting assembly, and no other driving mechanism needs to be arranged for the first scraper and the second scraper, thereby reducing the manufacturing cost.

[0023] In some embodiments, the first enclosing member and the second enclosing member are detachably connected to the bottom plate, and the first enclosing member and the second enclosing member are adapted to be arranged on the artificial skin to fix the artificial skin.

[0024] By fixing the artificial skin by using the first enclosing member and the second enclosing member, the first enclosing member and the second enclosing member have the functions of enclosing the coupling agent and fixing the artificial skin, and no other fixing member needs to be arranged for the fixation of the artificial skin, thereby simplifying the structure of the wear-resistant test device and saving the manufacturing cost.

[0025] The medical ultrasonic probe acoustic lens wear-resistant test device provided by the application has at least one of the following beneficial effects:

[0026] 1. The medical ultrasonic probe acoustic lens wear-resistant test device provided by the application, by arranging the enclosing assembly, enclosing the coupling agent in the enclosing space formed by the first scraper, the first enclosing member, the second scraper and the second enclosing member in sequence, and combining the synchronous movement of the first scraper and the second scraper with the acoustic lens, the coupling agent in the enclosing space is alternately pushed to the movement direction of the acoustic lens by the first scraper and the second scraper when the acoustic lens moves, so as to ensure that the friction test condition of the acoustic lens is met, and the position of the coupling agent does not need to be manually adjusted and the coupling agent does not need to be manually added during the test, thereby realizing the automatic adjustment of the position of the coupling agent, improving the test efficiency and saving the labor and material costs.

[0027] 2. The medical ultrasonic probe acoustic lens wear resistance testing device provided by the application realizes the reciprocating linear motion of the reciprocating linear motion assembly through the use of a crank slider mechanism, which can reduce the machining precision requirement and machining difficulty of the driving assembly and reduce the procurement cost of the driving assembly, in other words, the manufacturing and use costs of the driving assembly are reduced.

[0028] 3. The medical ultrasonic probe acoustic lens wear resistance testing device provided by the application realizes the multi-gear adjustable function of the movement stroke of the reciprocating linear motion assembly by setting multiple connecting holes and the distance between each connecting hole and the rotating shaft of the motor assembly being different. When the reciprocating linear motion assembly needs to have a larger movement stroke, the connecting rod only needs to be rotationally connected to the connecting hole far from the rotating shaft; and when the reciprocating linear motion assembly needs to have a smaller movement stroke, the connecting rod only needs to be rotationally connected to the connecting hole close to the rotating shaft, thus improving the versatility of the wear resistance testing device.

[0029] 4. The medical ultrasonic probe acoustic lens wear resistance testing device provided by the application realizes the stable operation of the wear resistance testing device by adopting a bias crank slider mechanism, that is, the moving direction line of the rotation connection point between the connecting rod and the reciprocating linear motion assembly does not intersect with the rotating shaft (rotation center) of the motor assembly, which can avoid the generation of dead point positions and reduce the risk of the driving assembly being stuck, compared with the concentric crank slider mechanism.

[0030] 5. The medical ultrasonic probe acoustic lens wear resistance testing device provided by the application sets the loading position on the guide rod, so that the guide rod has the functions of guiding the probe mounting assembly and lifting the weight, and the loading position does not need to be separately set at other positions of the fixed frame assembly, which simplifies the structure of the wear resistance testing device and saves the manufacturing cost.

[0031] 6. The medical ultrasonic probe acoustic lens wear resistance testing device provided by the application sets the limiting part on the guide rod, so that the upper part of the guide rod can pass through weights of different hole diameters, which improves the adaptability of the guide rod to weights of different hole diameters.

[0032] 7. The medical ultrasonic probe acoustic lens wear resistance testing device provided by the application installs the first scraper and the second scraper on the probe mounting assembly, so that the first scraper and the second scraper can synchronously reciprocate linearly with the probe mounting assembly, and other driving mechanisms do not need to be separately set for the first scraper and the second scraper, which reduces the manufacturing cost.

[0033] 8. The medical ultrasonic probe acoustic lens wear resistance testing device provided by the application has the effects of fixing the human simulation skin and surrounding the coupling agent, and does not need to separately configure other fixing members for fixing the human simulation skin, thereby simplifying the structure of the wear resistance testing device and saving manufacturing cost. BRIEF DESCRIPTION OF DRAWINGS

[0034] The above-mentioned features, technical characteristics, advantages and implementation manners of the medical ultrasonic probe acoustic lens wear resistance testing device will be further described in the following in a clear and understandable manner in combination with the preferred embodiments and the accompanying drawings:

[0035] Figure 1 is a schematic diagram of the overall structure of an embodiment of the application;

[0036] Figure 2 is a schematic diagram of the structure of a crank slider mechanism;

[0037] Figure 3 is a schematic diagram of the structure of a reciprocating linear motion assembly, in which some components are cut away;

[0038] Figure 4 is a schematic diagram of the structure of a reciprocating linear motion assembly, in which some components are cut away; Figure 3 is a schematic diagram of the structure of a reciprocating linear motion assembly, in which some components are cut away;

[0039] Figure 5 is a schematic diagram of the structure of a reciprocating linear motion assembly, in which some components are cut away; Figure 3 is another schematic diagram of the structure of an embodiment.

[0040] Explanation of reference numerals:

[0041] Drive assembly 1, motor assembly 11, rotating member 12, connecting hole 121, connecting rod 13, reciprocating linear motion assembly 2, sliding member 21, fixing frame assembly 22, connecting block 221, guide hole 2211, guide rod 222, flange 2221, probe mounting assembly 223, ultrasonic probe 3, bottom plate 4, second mounting position 41, first scraper 51, second scraper 52, first surrounding member 53, second surrounding member 54, surrounding space 55, weight 6, linear guide block 7, human simulation skin 8. DETAILED DESCRIPTION

[0042] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the specific embodiments of the application will be described below with reference to the drawings. Obviously, the drawings in the following description are only some embodiments of the application, and for those skilled in the art, other drawings can be obtained from these drawings without creative labor, and other embodiments can also be obtained.

[0043] For the purpose of clarity, only the parts of the apparatus that are pertinent to the application are shown in the drawings, and they do not necessarily represent the actual construction of the product. In addition, for the purpose of simplicity and clarity, in some of the drawings, only one of the components with the same structure or function is schematically shown, or only one of them is labeled. In this document, "one" means not only "only one", but also "more than one" in some cases.

[0044] It should be further understood that the term "and / or" used in the description and claims of the application herein is intended to mean any combination of the associated listed items, as well as all possible combinations, and includes these combinations.

[0045] In this document, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection; it can be direct connection, or indirect connection through intermediate medium; it can be internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0046] In addition, in the description of the application, the terms "first", "second", etc. are only used for differentiation and description, and cannot be understood as indicating or implying relative importance.

[0047] Reference Figures 1-5 The application provides a medical ultrasonic probe acoustic lens wear resistance testing device, which comprises a driving assembly 1, a reciprocating linear motion assembly 2, the reciprocating linear motion assembly 2 is driven by the driving assembly 1 to make reciprocating linear motion, the reciprocating linear motion assembly 2 is provided with a first mounting position, and the first mounting position is used for mounting an ultrasonic probe 3; a bottom plate 4, the bottom plate 4 is provided with a second mounting position 41, and the second mounting position 41 is used for fixing a human simulation skin 8; a surrounding component, which comprises a first scraper 51, a second scraper 52, a first surrounding part 53 and a second surrounding part 54, the first scraper 51, the first surrounding part 53, the second scraper 52 and the second surrounding part 54 are sequentially surrounded to form a surrounding space 55, and the surrounding space 55 is used for surrounding a coupling agent;

[0048] In the test phase, the acoustic lens of the ultrasonic probe 3 is pressed against the artificial human skin 8, and the acoustic lens moves synchronously with the reciprocating linear motion assembly 2 and rubs against the artificial human skin 8; in the test phase, a coupling agent is arranged in the surrounding space 55, the acoustic lens is located in the surrounding space 55, the first scraper 51 and the second scraper 52 are arranged in the reciprocating linear motion direction of the acoustic lens, the first surrounding part 53 and the second surrounding part 54 are arranged in the direction perpendicular to the reciprocating linear motion of the acoustic lens, the first scraper 51 and the second scraper 52 move synchronously with the acoustic lens, and the first scraper 51 and the second scraper 52 abut against the artificial human skin 8, so that the first scraper 51 and the second scraper 52 alternately push the coupling agent in the direction of motion of the acoustic lens when the acoustic lens moves.

[0049] It can be understood that by arranging the surrounding assembly, the surrounding space 55 formed by the first scraper 51, the first surrounding part 53, the second scraper 52 and the second surrounding part 54 in turn surrounds the coupling agent, and the first scraper 51 and the second scraper 52 can move synchronously with the acoustic lens, so that the coupling agent in the surrounding space 55 is alternately pushed by the first scraper 51 and the second scraper 52 in the direction of motion of the acoustic lens when the acoustic lens moves, thereby ensuring that the friction test conditions of the acoustic lens are met, and manual adjustment of the position of the coupling agent and manual addition of the coupling agent are not required during the test, thereby realizing automatic adjustment of the position of the coupling agent, improving the test efficiency, and saving manpower and material resources.

[0050] Specifically, the driving assembly 1 can be a combination of a motor assembly 11 and a linear guide rail (slide rail), a combination of a motor assembly 11 and a ball screw, a combination of a motor assembly 11 and a crank slider mechanism, etc., as long as the driving assembly 1 has the function of driving the reciprocating linear motion assembly 2 to move in a reciprocating linear motion. It can be understood that the wear resistance test device needs to have the functions of calculating the number of reciprocating motions and / or the total distance of movement and / or speed adjustment of the acoustic lens, which can be integrated in the motor assembly 11 or realized by an external device. It can be understood that the artificial human skin 8 does not limit the technical solutions claimed in the present application, and the artificial human skin 8 in the present application can be replaced by animal skin or other materials that meet the acoustic lens friction test conditions. The wear resistance test device in the present application can be used to test ultrasonic probes 3 for humans, or ultrasonic probes 3 for animals.

[0051] It can be understood that, in order to make the first scraper 51 and the second scraper 52 well abut against the artificial skin 8, prevent the coupling agent from leaking out from between the first scraper 51 (or the second scraper 52) and the artificial skin 8, and at the same time avoid that the first scraper 51 (or the second scraper 52) causes serious abrasion to the artificial skin 8, the part of the first scraper 51 (or the second scraper 52) abutting against the artificial skin 8 should have a certain elasticity, and when the first scraper 51 (or the second scraper 52) abuts against the artificial skin 8, the abutting part is elastically deformed. Specifically, the first scraper 51 and the second scraper 52 are both made of rubber or other materials with elasticity.

[0052] Reference Figure 1 , Figure 2 In one embodiment, the driving assembly 1 comprises a motor assembly 11, a rotating piece 12 and a connecting rod 13; the rotating piece 12 is installed on the rotating shaft of the motor assembly 11; one end of the connecting rod 13 is rotatably connected to the rotating piece 12, and the other end is rotatably connected to the reciprocating linear motion assembly 2; the rotating piece 12, the connecting rod 13 and the reciprocating linear motion assembly 2 combine to form a crank slider mechanism.

[0053] Specifically, the motor in the motor assembly 11 can be a stepper motor, a servo motor or a general motor. It is worth noting that the reciprocating linear motion of the reciprocating linear motion assembly 2 is realized by adopting the crank slider mechanism, which can reduce the machining precision requirement and the machining difficulty of the driving assembly 1, and also can reduce the procurement cost of the driving assembly 1, in other words, the manufacturing and using cost of the driving assembly 1 is reduced, at the same time, the crank slider mechanism basically does not need to be maintained and has a long service life.

[0054] It can be understood that the crank slider mechanism formed by the rotating piece 12, the connecting rod 13 and the reciprocating linear motion assembly 2 can be concentric or biased, and is preferably a biased crank slider mechanism. Reference Figure 2 By adopting the biased crank slider mechanism, that is to say, the moving orientation line of the rotating connection point between the connecting rod 13 and the reciprocating linear motion assembly 2 does not intersect with the rotating shaft (rotation center) of the motor assembly 11, which can avoid the dead point position compared with the concentric crank slider mechanism, reduce the risk of jamming of the driving assembly 1, and ensure the stable operation of the wear testing device.

[0055] Reference Figure 1 , Figure 2 In one embodiment, a plurality of connecting holes 121 are provided on the rotating piece 12, the distances between the plurality of connecting holes 121 and the rotating shaft of the motor assembly 11 are different, and the connecting rod 13 is connected to one of the plurality of connecting holes 121; by connecting the connecting rod 13 to different connecting holes 121, the movement stroke of the reciprocating linear motion assembly 2 can be adjusted.

[0056] Specifically, the rotating member 12 can be a rod, a disc, or other shaped member. By setting multiple connecting holes 121, each of which has a different distance from the rotating shaft of the motor assembly 11, the motion stroke of the reciprocating linear motion assembly 2 can be adjusted in multiple gears. When a larger motion stroke of the reciprocating linear motion assembly 2 is needed, the connecting rod 13 is connected to the connecting hole 121 far from the rotating shaft; when a smaller motion stroke of the reciprocating linear motion assembly 2 is needed, the connecting rod 13 is connected to the connecting hole 121 close to the rotating shaft, thus improving the versatility of the wear testing device.

[0057] Reference Figures 1-5 In one embodiment, the reciprocating linear motion assembly 2 includes a sliding member 21 and a fixed frame assembly 22. The driving assembly 1 is connected to the sliding member 21 and drives the sliding member 21 to move linearly. The fixed frame assembly 22 includes a connecting block 221, a guide rod 222, and a probe mounting assembly 223. The connecting block 221 is connected to the sliding member 21 and is provided with a guide hole 2211. The guide rod 222 is arranged in the guide hole 2211 and is connected to the probe mounting assembly 223. The first mounting position is arranged in the probe mounting assembly 223. The fixed frame assembly 22 is further provided with a loading position, and a weight 6 is placed on the loading position to apply a vertical downward force to the acoustic lens.

[0058] Specifically, in order to limit the movement direction of the sliding member 21, a linear guide 7 is fixed on the bottom plate 4, and the sliding member 21 is clamped on the linear guide 7 and can slide along the linear guide 7. In other embodiments, a guide chute can be used to limit the sliding direction of the sliding member 21.

[0059] In one embodiment, the height of the connecting block 221 relative to the sliding member 21 is fixed. Reference Figure 3 , Figure 4 In other embodiments, the height of the connecting block 221 relative to the sliding member 21 is adjustable, for example Figure 3 , Figure 4 As shown in FIG. 8, a vertical part is arranged on the sliding member, and a vertical strip-shaped hole is arranged on the vertical part. A bolt assembly is used to fix the connecting block 221 to different height positions of the strip-shaped hole. The adjustable height of the connecting block 221 allows the wear testing device to be applicable to ultrasonic probes 3 of various specifications.

[0060] Reference Figure 1 , Figure 3 , Figure 4In one embodiment, the upper part of the guide rod 222 is a loading position, and the weight 6 is adapted to be arranged on the loading position. By arranging the loading position on the guide rod 222, the guide rod 222 has the functions of guiding the probe mounting assembly 223 and lifting the weight 6, and it is not necessary to separately arrange a loading position on other positions of the fixing frame assembly 22, which simplifies the structure of the wear resistance testing device and saves the manufacturing cost. In other embodiments, the loading position can be arranged on the probe mounting assembly 223, for example, a loading rod is arranged on the probe mounting assembly 223, and when loading is needed, the weight 6 is arranged on the loading rod.

[0061] Reference Figure 1 , Figure 3 , Figure 4 In one embodiment, the guide hole 2211 is a through hole, the guide rod 222 is arranged in the guide hole 2211 and the two ends of the guide rod 222 are exposed, the lower part of the guide rod 222 is connected to the probe mounting assembly 223, and the upper part of the guide rod 222 is provided with a limiting part. When the weight 6 is arranged on the upper part of the guide rod 222, the bottom end of the weight 6 abuts against the limiting part. By arranging the limiting part on the guide rod 222, the upper part of the guide rod 222 can be arranged with weights 6 of different hole diameters, which improves the adaptability of the guide rod 222 to weights 6 of different hole diameters.

[0062] Specifically, the limiting part can have various implementation forms, for example, a flange 2221 is arranged on the guide rod 222, or the guide rod 222 is a variable cross-section rod member which includes a large-diameter section and a small-diameter section, and a circular truncated cone at the transition between the large-diameter section and the small-diameter section forms the limiting part, or a rod member is arranged along the radial direction of the guide rod 222 to form the limiting part, or a snap spring is arranged along the circumferential direction of the guide rod 222 to form the limiting part. The flange 2221 arranged on the guide rod 222 is preferred.

[0063] Reference Figure 1 , Figure 3 , Figure 5 In one embodiment, the first scraper 51 and the second scraper 52 are oppositely arranged on the two sides of the probe mounting assembly 223. It should be noted that by arranging the first scraper 51 and the second scraper 52 on the probe mounting assembly 223, the first scraper 51 and the second scraper 52 can both synchronously reciprocate linearly with the probe mounting assembly 223, and it is not necessary to separately arrange other driving mechanisms for the first scraper 51 and the second scraper 52, which reduces the manufacturing cost.

[0064] Reference Figure 1 , Figure 3 , Figure 5 In one embodiment, the first enclosing member 53 and the second enclosing member 54 are detachably connected to the bottom plate 4, and the first enclosing member 53 and the second enclosing member 54 are adapted to be pressed on the artificial skin 8 to fix the artificial skin 8.

[0065] It is worth noting that by fixing the artificial skin 8 by using the first enclosing member 53 and the second enclosing member 54, the first enclosing member 53 and the second enclosing member 54 have the functions of enclosing the coupling agent and fixing the artificial skin 8, and other fixing members need not be separately configured for the fixation of the artificial skin 8, which simplifies the structure of the abrasion tester and saves manufacturing cost. It can be understood that in order to ensure the fixing effect on the artificial skin 8, fixing members can be added to fix the entire periphery of the artificial skin 8.

[0066] It should be noted that the above embodiments can be freely combined as needed. The above is only a preferred embodiment of the present application, and it should be pointed out that for those skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, which should be considered as the protection scope of the present application.

Claims

1. A medical ultrasonic probe acoustic lens wear test device, characterized by, The utility model relates to a kind of ultrasonic testing device, including: Drive assembly; Reciprocating linear motion assembly, the reciprocating linear motion assembly is driven by the drive assembly to do reciprocating linear motion, the reciprocating linear motion assembly is equipped with first installation site, and the first installation site is used to install ultrasonic probe; Bottom plate, the bottom plate is equipped with second installation site, and the second installation site is used to fix human simulation skin; Enclosure assembly, which includes a first scraper, a second scraper, a first enclosure and a second enclosure, the first scraper, the first enclosure, the second scraper and the second enclosure are sequentially enclosed into an enclosure space, and the enclosure space is used to enclose coupling agent; In the test phase, the acoustic lens of the ultrasonic probe is pressed on the human simulation skin, and the acoustic lens moves synchronously with the reciprocating linear motion assembly and rubs with the human simulation skin; In the test phase, the enclosure space is provided with the coupling agent, and the acoustic lens is located in the enclosure space. The first scraper and the second scraper are arranged at intervals along the reciprocating linear motion direction of the acoustic lens. The first enclosure and the second enclosure are arranged at intervals along the direction perpendicular to the reciprocating linear motion of the acoustic lens. The first scraper and the second scraper move synchronously with the acoustic lens. The first scraper and the second scraper abut against the human simulation skin to alternately push the coupling agent to the movement direction of the acoustic lens when the acoustic lens moves.

2. A medical ultrasonic probe acoustic lens wear test device according to claim 1, wherein The drive assembly includes a motor assembly, a rotating member, and a connecting rod. The rotating member is installed on the rotating shaft of the motor assembly. One end of the connecting rod is rotatably connected to the rotating member, and the other end is rotatably connected to the reciprocating linear motion assembly. The rotating member, the connecting rod, and the reciprocating linear motion assembly form a crank slider mechanism.

3. A medical ultrasonic probe acoustic lens wear test device according to claim 2, wherein The rotating member is provided with a plurality of connecting holes, and the distances between the connecting holes and the rotating shaft of the motor assembly are different. The connecting rod is connected to one of the connecting holes. By connecting the connecting rod to different connecting holes, the movement stroke of the reciprocating linear motion assembly can be adjusted.

4. The medical ultrasonic probe acoustic lens wear test device according to claim 2, wherein The crank slider mechanism formed by the rotating member, the connecting rod, and the reciprocating linear motion assembly is a biased crank slider mechanism.

5. A device for wear testing a medical ultrasonic probe acoustic lens according to any one of claims 1-4, characterized in that, The reciprocating linear motion assembly includes a sliding member and a fixed frame assembly. The drive assembly is connected to the sliding member and drives the sliding member to move linearly. The fixed frame assembly includes a connecting block, a guide rod, and a probe mounting assembly. The connecting block is connected to the sliding member and is provided with a guide hole. The guide rod is arranged in the guide hole and is connected to the probe mounting assembly. The first installation site is arranged in the probe mounting assembly. The fixed frame assembly is also provided with a loading site. By placing a weight in the loading site, a vertical downward force can be applied to the acoustic lens.

6. A medical ultrasonic probe acoustic lens wear test device according to claim 5, wherein The upper part of the guide rod is the loading site, and the weight is suitable for being arranged in the loading site.

7. A medical ultrasonic probe acoustic lens wear test device according to claim 6, wherein The guide hole is a through hole, the guide rod is arranged in the guide hole and has two exposed ends, the lower part of the guide rod is connected to the probe mounting assembly, and the upper part of the guide rod is provided with a limiting portion.

8. A medical ultrasonic probe acoustic lens wear testing device according to claim 7, wherein, The limiting portion is a flange.

9. A medical ultrasonic probe acoustic lens wear test device according to claim 5, wherein, The first scraper and the second scraper are oppositely arranged on two sides of the probe mounting assembly.

10. A device for wear testing a medical ultrasonic probe acoustic lens according to any one of claims 1-4, 6-9, characterized in that, The first and second enclosing members are detachably connected to the bottom plate, and the first and second enclosing members are adapted to be pressed on the artificial skin to fix the artificial skin.

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