Ultrasonic equipment testing device
By opening an energy receiving hole on the bracket of the ultrasonic equipment test device, the ultrasonic energy passes through the hole and irradiates to the focal area of the ex vivo tissue, the problem of the bracket blocking the ultrasonic energy and improving the test accuracy.
Patent Information
- Application Number
- CN202421591584.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-05
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-07-05
AI Technical Summary
In the existing ultrasonic equipment test device, the bracket is blocked between the focal domain of the ex vivo tissue and the ultrasonic transducer, affecting the test results.
An energy receiving hole that penetrates up and down is opened on the stent, so that ultrasonic energy passes through the hole and irradiates to the focal area of the ex vivo tissue, so as to prevent the stent from blocking the ultrasonic energy.
Ensure that the ultrasonic energy is not blocked by the stent and avoid affecting the test results. At the same time, by optimizing the shape and size of the energy receiving hole, the support effect of the stent on ex vivo tissue is improved.
Smart Images
Figure CN222913153U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of ultrasonic equipment testing, in particular to an ultrasonic equipment testing device. Background Art
[0002] The ultrasonic equipment testing device includes a container containing degassed water. A bracket is installed at the top of the container, and an ultrasonic transducer is installed at the bottom of the container, and the ultrasonic transducer is aligned with the bracket. During the test, first, an ex vivo tissue is placed on the bracket to immerse it in the degassed water for degassing treatment, and a temperature sensor is installed on the ex vivo tissue. Then, the ultrasonic transducer is activated to irradiate the ex vivo tissue with ultrasound. The ultrasonic transducer, as the ultrasonic equipment, focuses the ultrasonic energy on a specific area of the ex vivo tissue, causing the temperature in the focal region of the ex vivo tissue to rise rapidly. The tester uses the temperature sensor to detect the temperature change in the focal region of the ex vivo tissue, and based on the detection result of the temperature sensor, it can be known the influence of the ultrasonic transducer on the ex vivo tissue, and in this way, the test of the ultrasonic transducer is realized. During the test process, since the ex vivo tissue is placed on the bracket, the bracket blocks between the focal region of the ex vivo tissue and the ultrasonic transducer, affecting the test result. Summary of the Utility Model
[0003] The technical problem to be solved by the utility model is to provide an ultrasonic equipment testing device. When using this device for testing, the bracket of this device will not block between the focal region of the ex vivo tissue and the ultrasonic transducer, thus not affecting the test result.
[0004] The inventor tried to optimize the stent structure confidentially as follows: energy receiving holes penetrating through the upper and lower parts were opened on the stent. An in vitro tissue was placed above the stent so that the focal region of the in vitro tissue covered the energy receiving holes. The ultrasonic transducer focused ultrasonic energy at the energy receiving holes. The ultrasonic energy passed through the energy receiving holes and irradiated the focal region of the in vitro tissue. In this way, the stent would not block between the in vitro tissue and the ultrasonic transducer, without affecting the test results. After practice, the inventor found that the energy receiving holes had to be opened large enough to ensure that the ultrasonic energy would not be blocked by the stent. However, the larger the energy receiving holes were not necessarily better, because the larger the energy receiving holes were, the weaker the supporting effect of the stent on the in vitro tissue would be, and the more likely the in vitro tissue would deform under the action of gravity, resulting in a decrease in test accuracy. Therefore, on the premise of ensuring that the ultrasonic energy would not be blocked by the stent, the smaller the energy receiving holes were, the better, and the energy receiving holes with the smallest size had the best effect. The ultrasonic energy beam generated by the ultrasonic transducer was generally a tapered shape that narrowed from bottom to top. The inventor set the shape of the energy receiving holes as a frustum of a cone with a narrow upper part and a wide lower part. Because the top of the frustum-shaped hole was narrowed, the stent with the frustum-shaped holes had a larger supporting surface than the stent with other holes and had a better supporting effect on the in vitro tissue. The specific shapes of the ultrasonic energy beams generated by different ultrasonic transducers were different, and the best-matched energy receiving holes were also different. Starting from the perspective of how to adjust the size of the energy receiving holes of the ultrasonic device test device to match different ultrasonic transducers, the inventor continued to optimize the structure of the ultrasonic device test device.
[0005] To solve the above technical problems, the ultrasonic device test device of the present utility model includes a degassed water container. A stent for supporting the in vitro tissue and a temperature sensor for detecting the temperature of the focal region of the in vitro tissue are installed at the top of the container. An ultrasonic transducer is installed at the bottom of the container, and the ultrasonic transducer faces upward and is aligned with the focal region of the in vitro tissue placed on the stent. The stent includes a mounting plate installed at the top of the container. A sliding plate that can slide back and forth is installed on the mounting plate. The mounting plate and the sliding plate together form a support plate to support the in vitro tissue. A plurality of vertical through holes arranged in the front and back are opened on the sliding plate. All the through holes are frustum-shaped with a narrow upper part and a wide lower part and have different sizes. The sliding plate can slide back and forth until any one of the through holes is used as an energy receiving hole to align with the ultrasonic transducer and the focal region of the in vitro tissue, so that the ultrasonic energy of the ultrasonic transducer can pass through and irradiate the focal region of the in vitro tissue.
[0006] Furthermore, a plurality of transverse threaded holes arranged in the front and back are opened on the sliding plate, corresponding to the plurality of through holes respectively; a transverse locking hole is opened on the mounting plate, and a transverse locking pin is installed in the locking hole. The locking pin is provided with an external thread, and the head of the locking pin is exposed for people to operate; when a through hole is used as an energy receiving hole, the corresponding threaded hole is aligned with the transverse locking hole of the mounting plate, and the locking pin can be operated to screw into the threaded hole to lock the sliding plate so that the sliding plate cannot slide back and forth.
[0007] Further, a fixing component for fixing the ex vivo tissue is installed on the mounting plate.
[0008] Further, the temperature sensor is installed on the mounting plate.
[0009] Further, vertical slide rails are installed on the inner wall of the degassed water container, and vertical sliders are installed at the tops of the slide rails; the mounting plate is installed on the sliders and thus installed at the top of the container in this way; the sliders can drive the mounting plate to move vertically along the slide rails so as to adjust the height of the mounting plate.
[0010] Further, a locking mechanism for locking the sliders on the slide rails is included.
[0011] Further, the ultrasonic transducer is specifically detachably installed at the bottom of the container.
[0012] Before the test, first judge at least how large an energy receiving hole the bracket needs to open according to the specific shape of the ultrasonic energy beam generated by the ultrasonic transducer so as not to block the ultrasonic energy, and then select the through hole with the smallest size among all the through holes on the sliding plate that can meet this condition as the energy receiving hole, and slide the sliding plate back and forth until the energy receiving hole is aligned with the ultrasonic transducer. During the test: first place the ex vivo tissue on the support plate composed of the mounting plate and the sliding plate so that it is immersed in the degassed water for degassing treatment, and make the focal region of the ex vivo tissue cover the energy receiving hole of the sliding plate. In this state, the energy receiving hole is aligned with the focal region of the ex vivo tissue; then start the ultrasonic transducer, and the ultrasonic transducer generates ultrasonic energy that irradiates the focal region of the ex vivo tissue after passing through the energy receiving hole. Since the bracket is provided with an energy receiving hole, it will not block between the focal region of the ex vivo tissue and the ultrasonic transducer and will not affect the test result. The ultrasonic energy beam generated by the ultrasonic transducer is a tapered shape that narrows from bottom to top. The shape of the energy receiving hole of this test device is set as a frustum of a cone with a narrow top and a wide bottom. Since the top of the frustum-shaped hole is narrow, the bracket with a frustum-shaped hole has a larger support surface than the bracket with other holes and has a better support effect on the ex vivo tissue. The specific shapes of the ultrasonic energy beams generated by different ultrasonic transducers are different, and the best-matched energy receiving holes are also different. The sliding plate of this test device is provided with a plurality of through holes of different sizes, and the most suitable through hole among them can be selected according to the needs as the energy receiving hole to adapt to different ultrasonic transducers. Description of the Drawings
[0013] Figure 1 is a schematic diagram of an ultrasonic device test device.
[0014] Figure 2 is Figure 1 a partial enlarged view of Figure 1 in which part A of
[0015] Figure 3 is a schematic diagram of the mounting plate, the sliding plate and the locking pin.
[0016] Figure 4 It is a cross-sectional view of the sliding plate.
[0017] Figure 5 It is a schematic diagram of the pig liver placed on the bracket after the sliding plate slides forward.
[0018] Figure 6 It is a cross-sectional view of the ultrasonic device testing apparatus, in which the ultrasonic energy beam generated by the ultrasonic transducer is shown by a dashed line.
[0019] Figure 7 It is Figure 6 a partial enlarged view of Figure 6 part B of
[0020] Figure 8 It is a cross-sectional view of the slide rail, slider and locking bolt. Specific embodiments
[0021] The following further elaborates on the present invention in conjunction with specific embodiments.
[0022] The ultrasonic device testing apparatus is shown in Figure 1 and Figure 2 , and includes a degassed water container 1 containing degassed water (not shown in the figure). The ultrasonic device testing apparatus includes a bracket 2. The bracket 2 includes a mounting plate 21, and the mounting plate 21 is mounted on the top of the container 1. See Figure 2 and Figure 3 , a forward-facing chute 216 is formed in the middle 215 of the mounting plate 21. The left and right parts of the mounting plate 21 project forward to form left and right mounting blocks 213 and 214, and left and right fixing components 25 and 26 are respectively mounted on the left and right mounting blocks 213 and 214. The left and right fixing components 25 and 26 have the same structure. Taking the left fixing component 25 as an example, the left fixing component 25 includes a guide rod 251 mounted on the left mounting block 213. A limiting plate 252 is mounted on the upper part of the guide rod 251, and a pressing plate 253 is mounted on the lower part. A spring 254 is provided between the limiting plate 252 and the pressing plate 253, and the spring 254 is sleeved on the outer peripheral side of the guide rod 251. A rubber pressing block 255 is mounted on the lower side of the pressing plate 253. The right fixing component 26 has the same structure as the left fixing component 26 and will not be elaborated here. A sliding plate 22 is mounted on the mounting plate 21. The rear part of the sliding plate 22 is inserted into the chute 216 and can slide back and forth along the chute 216. The mounting plate 21 and the sliding plate 22 form a support plate 20. Three vertical through holes 221, 222, and 223 arranged in the front-rear direction are formed on the sliding plate 22. See Figure 4, the three through holes 221, 222, and 223 are all frustum-shaped with a narrower upper part and a wider lower part. The upper diameters L1, L2, and L3 of the three vertical through holes 221, 222, and 223 are 30 mm, 20 mm, and 10 mm respectively, and the lower diameters L4, L5, and L6 are 50 mm, 40 mm, and 30 mm respectively. See Figure 3 , three front, middle, and rear horizontal threaded holes 224, 225, and 226 are arranged in the front and back on the right side of the sliding plate 22. The three front, middle, and rear horizontal threaded holes 224, 225, and 226 respectively correspond to the large, medium, and small through holes 221, 222, and 223. A horizontally penetrating locking hole 271 is formed in the right mounting block 214 of the mounting plate 21. A horizontal locking pin 272 is installed in the horizontal locking hole 271. The left part 273 of the locking pin 272 is provided with an external thread. The right part 274 of the locking pin 272 extends to the outside of the horizontal locking hole 271 to serve as an exposed head. A sensor mounting block 281 protrudes upward from the front end of the middle part 215 of the mounting plate 21. A horizontal sensor mounting hole 282 is formed in the sensor mounting block 281. The ultrasonic transducer 4 is detachably mounted at the bottom of the container 1 by means of bolt connection (see Figure 6 ). This ultrasonic equipment testing device includes a temperature sensor 5 (see Figure 5 ).
[0023] See Figure 5 , Figure 6 and Figure 7, before the test, the tester determines that the stent 2 needs to be opened with a frustum-shaped hole energy receiving hole with an upper diameter greater than 6 mm and a lower diameter greater than 23 mm so as not to block the ultrasonic energy according to the specific shape of the ultrasonic energy beam generated by the ultrasonic transducer 4, the height at which the stent 2 is located, and the thickness of the stent 2. The large, medium, and small through holes 221, 222, and 223 of the sliding plate 22 of this test device all meet this condition, and the tester selects the through hole 223 with the smallest size as the energy receiving hole 223. The tester slides the sliding plate 21 forward until the energy receiving hole 223 is aligned with the ultrasonic transducer 4. In this state, the rear transverse threaded hole 226 corresponding to the energy receiving hole 223 (i.e., the small through hole 223) is aligned with the transverse locking hole 271 of the mounting plate 22. The tester rotates the right part 274 of the locking pin 272 by hand, so that the external thread of the left part 273 of the locking pin 27 is screwed into the rear transverse threaded hole 226 to lock the sliding plate 22 and prevent the sliding plate 22 from sliding back and forth. During the test, first select the pig liver 9 as the ex vivo tissue, place it on the support plate 20 composed of the mounting plate 21 and the sliding plate 22 so that the pig liver 9 is immersed in degassed water for degassing treatment, let the focal region 91 of the pig liver 9 cover the energy receiving hole 223 of the sliding plate 22, and extend the two ends 92, 93 of the pig liver 9 under the pressing blocks 255 of the left and right fixing components 25, 26. The springs 254 of the left and right fixing components 25, 26 push the pressing blocks 255 downward, so that the pressing blocks 255 press down on the two ends 92, 93 of the pig liver 9 to fix the pig liver 9; in this state, the support plate 20 supports the pig liver 9, the energy receiving hole 223 is vertically aligned with the focal region 91 of the pig liver 9, the ultrasonic transducer 4 is vertically aligned with the focal region 91 of the pig liver 9 upward, and the sensor mounting hole 282 is horizontally aligned with the focal region 91 of the pig liver 9. After fixing the pig liver 9: insert the temperature sensor 5 into the sensor mounting hole 282, install the temperature sensor 5 on the mounting plate 21 in this way, let the temperature sensor 5 extend into the focal region 91 of the pig liver 9, and perform temperature detection on the focal region 91; then start the ultrasonic transducer 4. The ultrasonic transducer 4, as an ultrasonic device, generates ultrasonic energy that irradiates the focal region 91 of the pig liver 9 after passing through the energy receiving hole 223. Use the temperature sensor 5 to detect the temperature change of the focal region 91 of the pig liver 9, and the influence of the ultrasonic transducer 4 on the pig liver can be known according to the detection result of the temperature sensor 5, and the test of the ultrasonic transducer 4 is realized in this way. Since the stent 2 is provided with the energy receiving hole 223, it will not block between the focal region 91 of the pig liver 9 and the ultrasonic transducer 4 and will not affect the test result. The ultrasonic energy beam generated by the ultrasonic transducer 4 is a tapered shape that narrows from bottom to top. The shape of the energy receiving hole 223 of this test device is set as a frustum shape with a narrow upper part and a wide lower part. Since the top of the frustum-shaped hole is narrowed, the stent 2 with the frustum-shaped hole has a larger support surface than the stent 2 with other holes, and the support effect on the pig liver 9 is better.
[0024] See Figure 5 , Figure 6, since the ultrasonic transducer 4 is detachably mounted at the bottom of the container 1 by means of bolt connection, the tester can remove the original ultrasonic transducer 4 and then replace it with an ultrasonic transducer 4 of other models. The specific shapes of the ultrasonic energy beams generated by different ultrasonic transducers 4 are different, and the best energy receiving holes adapted to them are also different. A plurality of through holes 221, 222, 223 of different sizes are provided in the sliding plate 22 of the test device. The tester can select the most suitable through hole as the energy receiving hole according to the requirements to adapt to different ultrasonic transducers 4. For example, after the tester replaces the ultrasonic transducer 4, according to the specific shape of the ultrasonic energy beam generated by the ultrasonic transducer 4, the height of the bracket 2 and the thickness of the bracket 2, it is judged that the bracket 2 needs to be provided with a frustum-shaped energy receiving hole with an upper end diameter greater than 15 mm and a lower end diameter greater than 35 mm so as not to block the ultrasonic energy. Both the large and medium through holes 221, 222 of the sliding plate 22 of the test device meet this condition, and the tester selects the medium through hole 222 with the smallest size as the energy receiving hole 222. The tester operates the locking pin 272 to release the locking of the sliding plate 22, and then slides the sliding plate 22 backward until the energy receiving hole 222 is aligned with the ultrasonic transducer 4. Then, the locking pin 272 is operated again to lock the sliding plate 22 again, and then the test is carried out, which will not be elaborated here.
[0025] See Figure 1 and Figure 8 , a vertical slide rail 71 is installed on the inner wall of the container 1. The top of the slide rail 71 is located at the top of the container 1 and is provided with a vertical slider 72. A lock slider threaded hole 721 is provided in the slider 72, and a locking bolt 73 is installed in the lock slider threaded hole 721. The locking bolt 73 serves as a locking mechanism, its head 731 is exposed, and its tail 732 abuts against the slide rail 71, and in this way, the slider 72 is locked at the top of the slide rail 71. The mounting plate 21 is installed on the slider 72, and the bracket 2 is installed at the top of the container 1 in this way. When the tester needs to adjust the height of the bracket 2, the locking bolt 73 is loosened by hand so that the tail 732 of the locking bolt 73 no longer abuts against the slide rail 71, and in this way, the locking of the locking bolt 73 on the slider 72 is released. Then, the slider 72 is vertically slid along the slide rail 71 to drive the bracket 2 to move vertically, and in this way, the height of the bracket 2 is adjusted. After the tester adjusts the bracket 2 to the required height, the locking bolt 73 is tightened again to lock the slider 72 on the slide rail 71 again so that the slider 72 cannot slide vertically along the slide rail 71.
[0026] In this embodiment, the fixing components 25, 26 push down the pressing plate 253 and the pressing block 255 through the spring 254 to drive the pressing block 255 to press down on the pig liver 9, so as to fix the pig liver 9. In other embodiments, the fixing components 25, 26 can be changed to fix the pig liver by clamping the pig liver.
[0027] In this embodiment, pig liver 9 is used as the ex vivo tissue for testing. In other embodiments, other ex vivo tissues such as bovine liver can be used instead for testing.
[0028] As described above, it is only the implementation mode of the present invention, and the scope of patent protection is not limited thereby. Those skilled in the art make non-substantive changes or substitutions based on the present invention, and still fall within the scope of patent protection.
Claims
1. An ultrasonic equipment testing device, comprising a degassed water container, a support for supporting an ex vivo tissue and a temperature sensor for detecting the temperature of a focal region of the ex vivo tissue installed on the top of the container, an ultrasonic transducer installed on the bottom of the container, the ultrasonic transducer pointing upward to the focal region of the ex vivo tissue placed on the support, characterized in that: The bracket includes a mounting plate installed on the top of the container, on which a sliding plate that can slide back and forth is installed. The mounting plate and the sliding plate together form a support plate to support the ex vivo tissue. The sliding plate is provided with a plurality of vertical through holes arranged front to back. The plurality of through holes are all in the shape of a truncated cone that is narrow at the top and wide at the bottom and have different sizes. The sliding plate can slide back and forth until any through hole is used as an energy receiving hole to align with the focal area of the ultrasonic transducer and the ex vivo tissue so that the ultrasonic energy of the ultrasonic transducer can pass through and irradiate onto the focal area of the ex vivo tissue.
2. The ultrasonic equipment testing device according to claim 1, characterized in that: The sliding plate is provided with a plurality of transverse threaded holes arranged front to back, which correspond to a plurality of through holes respectively; the mounting plate is provided with a transverse locking hole, in which a transverse locking pin is installed, the locking pin is provided with an external thread, and the head of the locking pin is exposed for operation; the through hole is used as an energy receiving hole, and the corresponding threaded hole is aligned with the transverse locking hole of the mounting plate, and the locking pin can be operated to be screwed into the threaded hole to lock the sliding plate so that the sliding plate cannot slide forward and backward.
3. The ultrasonic equipment testing device according to claim 1, characterized in that: A fixing component for fixing the ex vivo tissue is installed on the mounting plate.
4. The ultrasonic equipment testing device according to claim 1, characterized in that: The temperature sensor is mounted on the mounting plate.
5. The ultrasonic equipment testing device according to claim 1, characterized in that: A vertical slide rail is installed on the inner wall of the degassed water container, and a vertical slider is installed on the top of the slide rail; the mounting plate is installed on the slider and thus installed on the top of the container; the slider can drive the mounting plate to move vertically along the slide rail to adjust the height of the mounting plate.
6. The ultrasonic equipment testing device according to claim 5, characterized in that: A locking mechanism is included to lock the slide block onto the slide rail.
7. The ultrasonic equipment testing device according to claim 1, characterized in that: The ultrasonic transducer is specifically detachably mounted on the bottom of the container.