Axial lateral resolution detection device and detection method for ultrasonic imaging equipment

Abstract

The present invention provides an axial lateral resolution detection device and a detection method for ultrasonic imaging equipment, which relate to the field of medical device quality inspection. The axial lateral resolution detection device comprises a hollow body, and a connecting portion for connecting the inner and outer sides is arranged on the peripheral side of the hollow body; a detection portion for placing a detection probe is arranged in the hollow body, and at least two units to be tested are arranged around the detection portion, and the detection probe detects the units to be tested to perform ultrasonic imaging resolution detection; the units to be tested are respectively located in a first direction and a second direction; the detection method comprises the following steps: immersing the detection device in a reflective medium, and then placing the detection probe of the ultrasonic imaging device to be tested on the detection portion; observing the imaging of the ultrasonic imaging device on the unit to be tested, and measuring the detection error of the ultrasonic imaging device in the first direction and the second direction. The detection device in the present invention is simple to process and can be applied to large-scale industrial production.

Description

Technical Field

[0001] The present invention relates to the field of medical device quality inspection, and in particular to an axial lateral resolution inspection device and a inspection method for ultrasonic imaging equipment. Background Art

[0002] Bronchial ultrasound is a new technology developed in recent years. Using an ultrasound bronchoscope or a miniature ultrasound probe inserted through a bronchoscope into the trachea and bronchial lumen, ultrasound scanning can clearly display the various layers of the organs and bronchial wall structure, including adjacent tissue structures outside the lumen, such as ultrasound images of mediastinal lymph nodes. Currently, ultrasound products used in clinical practice are generally divided into two categories: one is an ultrasound bronchoscope, which is an ultrasound probe embedded in an optical fiber structure that can scan along the long axis of the trachea and can be used to guide real-time needle aspiration biopsy; the other is a radial bronchial ultrasound probe, which enters the airway through the biopsy channel of the bronchoscope and produces a 360° image perpendicular to the airway axis.

[0003] Because doctors clinically base their diagnoses on the information provided by ultrasound scans, image quality is considered the primary factor in measuring the quality of ultrasound equipment and determining its proper functioning. However, the use of tissue-mimicking ultrasound phantoms is the only material and technical means for objectively, rapidly, realistically, and quantitatively evaluating the performance and quality of ultrasound equipment throughout its development, production, sales, use, maintenance, and regulatory management.

[0004] The prior art discloses an invasive ultrasound imaging performance testing device, comprising a phantom housing, a support plate, a detection cavity, multiple target lines, multiple simulated lesions, and background simulated tissue material. A sealed space is formed between the outer walls of the phantom housing and the detection cavity, and the interior is filled with the background simulated tissue material. The phantom housing has multiple inlets for filling the background simulated tissue material. The multiple target lines and multiple simulated lesions are embedded in the background simulated tissue material. The interior of the detection cavity is filled with an aqueous maintenance fluid.

[0005] However, existing detection devices require filling the phantom shell with background tissue-mimicking material and the detection cavity with aqueous maintenance fluid during fabrication. This cumbersome process makes it unsuitable for large-scale industrial production. Therefore, there is a need to develop a simpler, industrially applicable detection device for ultrasonic imaging equipment. Summary of the Invention

[0006] The object of the present invention is to provide an axial lateral resolution detection device and a detection method for ultrasonic imaging equipment.

[0007] In a first aspect, the present invention provides an axial lateral resolution detection device for an ultrasonic imaging device, which adopts the following technical solution:

[0008] The hollow body comprises a hollow body, wherein a connecting portion is provided on the circumference of the hollow body, and the connecting portion is used to connect the inner and outer sides of the hollow body;

[0009] A detection portion is provided inside the hollow body, and the detection portion is used to place a detection probe of an ultrasonic imaging device;

[0010] The hollow body is located at the detection part and is surrounded by at least two measured units, one end of the measured unit is located at the top of the hollow body, and the other end of the measured unit is located at the bottom corresponding to the top of the hollow body, and the middle part of the measured unit is located in the hollow body and parallel to the detection part;

[0011] The detection probe is used to detect the portion of the unit under test located within the hollow body to perform ultrasonic imaging resolution detection;

[0012] At least two of the measured units are respectively located in a first direction and a second direction of the detection portion;

[0013] The first direction is a radial direction with the detection portion as the center, and the second direction is a circumferential direction with the detection portion as the center.

[0014] The detection device for detecting the axial lateral resolution of an ultrasonic imaging device provided by the present invention has the following beneficial effects:

[0015] The hollow body plays an installation support role for the whole, and the connecting part on the peripheral side of the hollow body is used to connect the inner and outer sides of the hollow body. The detection probe of the ultrasonic imaging equipment is placed on the detection part, and the measured units are distributed in the first direction and the second direction around the detection part. The detection probe detects the part of the measured unit located in the hollow body to perform ultrasonic imaging resolution detection, thereby detecting the position of the measured unit in the first direction and the second direction, and comparing it with the actual position of the measured unit in the first direction and the second direction, so as to detect the detection resolution of the ultrasonic imaging equipment.

[0016] When the detection device is in use, the hollow body is immersed in the imaging reflective medium. The ultrasonic wave emitted by the detection probe propagates in the imaging reflective medium. When the ultrasonic wave is transmitted to the part of the measured unit located in the hollow body, it is reflected. The detection probe can receive this reflection and transmit the reflected signal to the ultrasonic imaging equipment to complete ultrasonic imaging, thereby completing the resolution detection work.

[0017] The hollow body is immersed in the imaging reflective medium only during use, and there is no need to pre-encapsulate the imaging reflective medium in the hollow body. This can improve the convenience of industrial production of the detection device and is conducive to large-scale industrial production of the detection device.

[0018] Optionally, the measured unit includes a measured target line, at least part of which is located on the inner side of the hollow body; the measured target line is wound around the two ends of the measured unit, and the part of the measured target line located on the inner side of the hollow body is parallel to the detection part; the detection probe is used to detect the measured target line for ultrasonic imaging resolution detection.

[0019] By adopting the above technical solution, the beneficial effect is that the part of the target line to be measured located on the inner side of the hollow body responds to the detection probe to perform ultrasonic imaging resolution detection, the target line to be measured is wound around the inner side of the hollow body, and the part of the target line to be measured located on the inner side of the hollow body is ensured to be parallel to the detection part, thereby ensuring that the part of the target line to be measured located on the inner side of the hollow body is adapted to the ultrasonic detection of the detection probe, which can improve the accuracy of resolution detection of ultrasonic imaging equipment.

[0020] Optionally, the hollow body is provided with through-parts on two opposite side walls, and the through-parts on the two side walls of the hollow body are arranged opposite to each other; the target line to be measured passes through the through-parts on the two side walls of the hollow body in sequence.

[0021] By adopting the above technical solution, the beneficial effect is that a through-hole is provided on the hollow body, and the through-holes on the two side walls are arranged opposite to each other, so that when the target line to be measured passes through the through-holes on the two side walls of the hollow body, the parallelism of the target line to be measured on the inner side of the hollow body can be ensured.

[0022] Optionally, the unit under test includes a winding assembly, the winding assembly is located at the through portion, the target line under test is wound on the winding assembly, and the winding assembly is used to guide and reverse the target line under test.

[0023] By adopting the above technical solution, the beneficial effect is that the target line to be measured is wound on the winding assembly, and the target line to be measured can be reversed, so that after the target line to be measured passes through the through-portion and is wound around the winding assembly, it can be re-entered into the inner side of the hollow body from the same or other through-portions, so that a single target line to be measured can have multiple parts inside the hollow body, and the multiple parts are parallel to each other.

[0024] Optionally, the winding assembly includes an end structure and a middle structure, and the end structure and the middle structure are located on two opposite side walls of the hollow body; the head and tail ends of the target line to be measured are located at the end structures, and the middle part of the target line to be measured is wound around the middle structure.

[0025] By adopting the above technical solution, when the winding assembly winds the target wire to be measured, the tail end of the target wire to be measured is first fixed on the end structure of the winding assembly, and then the target wire to be measured is passed through the through-hole and comes out from the through-hole on the other side of the hollow body and is wound on the middle structure of the winding assembly here. The middle structure plays a role in guiding and reversing the target wire to be measured, so that after the target wire to be measured is passed around the middle structure, it re-passes through the through-hole and enters the inner wall of the hollow body, and comes out from the through-hole of the hollow body on the other side, and is fixed on the end structure here, thereby completing the winding of the target wire to be measured; its beneficial effect is that it can improve the convenience of winding the target wire to be measured, and at the same time improve the convenience of replacing the target wire to be measured.

[0026] Optionally, the end structure includes a head end fixing portion, and the end of the target line to be measured is fixedly arranged on the head end fixing portion.

[0027] By adopting the above technical solution, the beneficial effect is that the end of the target line to be measured is fixed at the head end fixing part, which can improve the tension of the target line to be measured in the hollow body and avoid the target line to be measured from being loose inside the hollow body, which affects the detection accuracy.

[0028] Optionally, the end structure includes a tail end fixing portion, and the tail end of the target line to be measured is fixedly arranged on the tail end fixing portion.

[0029] By adopting the above technical solution, the beneficial effect is that the tail end of the target line to be measured is fixed at the tail end fixing part, which can improve the stability of the target line to be measured when it is passed through the hollow body, avoid the target line to be measured from being detached during the passing process, and at the same time improve the position stability of the target line to be measured in the hollow body, thereby improving the detection accuracy of the resolution detection of the ultrasonic imaging equipment.

[0030] Optionally, the end structure includes a first clamping portion, the target line to be measured passes through the first clamping portion, and there is a clearance fit between the target line to be measured and the first clamping portion.

[0031] By adopting the above technical solution, the beneficial effect is that: after the tail end of the target line to be measured is fixed to the end structure, the target line to be measured is passed through the first clamping part. The first clamping part can adjust the position of the target line to be measured passing through the through-hole, and the clearance between the target line to be measured and the first clamping part is matched, so that during the threading process of the target line to be measured, the first clamping part will not hinder the movement of the target line to be measured, and at the same time, the target line to be measured can be deflected to a limited extent within the first clamping part; when the target line to be measured passes through the through-hole, the target line to be measured is passed through the first clamping part again and fixed to the end structure, so that the parallelism of the part of the target line to be measured on the inner side of the hollow body can be adjusted.

[0032] Optionally, the middle structure includes a winding middle portion, the target line to be measured is wound around the winding middle portion, and two portions of the target line to be measured that are wound around the winding middle portion are parallel to each other.

[0033] By adopting the above technical solution, the beneficial effect is that: after the target line to be measured passes through the through-portion, it is wound around the middle of the winding, and is guided by the middle of the winding to change direction and re-enter the through-portion into the inner side of the hollow body. At the same time, the two parts of the target line to be measured that pass around the middle of the winding are parallel to each other.

[0034] Optionally, the middle structure includes a second clamping portion, the target line to be measured passes through the second clamping portion, and there is a clearance fit between the target line to be measured and the second clamping portion.

[0035] By adopting the above technical solution, the beneficial effect is that: after the target line to be measured passes through the inner side of the hollow body, it passes through between the second clamping parts. The second clamping part can adjust the target line to be measured and then pass through the through part to be wound around the middle structure, and the gap between the target line to be measured and the second clamping part is matched, so that during the threading process of the target line to be measured, the second clamping part will not hinder the movement of the target line to be measured, and at the same time, the target line to be measured can be deflected to a limited extent within the second clamping part; when the target line to be measured passes around the middle structure and passes through the second clamping part again, the parallelism of the target line to be measured at the middle structure can be improved.

[0036] Optionally, the detection portion includes a detection area, which is located inside the hollow body and is used to place a detection probe of an ultrasonic imaging device; the measured unit is located in a first direction and a second direction of the detection area.

[0037] By adopting the above-mentioned technical solution, the beneficial effects are: the detection probe of the ultrasonic imaging equipment is placed in the detection area located on the inner side of the hollow body, the detection probe performs ultrasonic detection on the unit to be tested in the detection area, and transmits the detected signal to the ultrasonic imaging equipment for imaging; since the unit to be tested is distributed in the first direction and the second direction of the detection area, the detection accuracy of the detection probe in the first direction and the second direction can be tested.

[0038] Optionally, the detection part includes two mounting parts, which are symmetrically mounted on the two inner walls of the hollow body, and the detection area is located between the two mounting parts; the mounting part is used to place the detection probe so that the detection end of the detection probe is located in the detection area.

[0039] By adopting the above-mentioned technical solution, the beneficial effect is that when placing the detection probe of the ultrasonic imaging equipment, the detection probe is placed on two mounting parts, which can improve the placement stability of the detection probe, and make the detection end of the detection probe located in the detection area, thereby improving the stability of the detection end of the detection probe during detection.

[0040] Optionally, the mounting portion is configured to have a closed end on a side close to the detection area.

[0041] By adopting the above technical solution, the beneficial effect is that the detection end of the detection probe is placed in the detection area, and the end of the mounting part close to the detection area is closed. When the detection end emits ultrasonic waves, strong reflection is avoided at the end of the mounting part, which interferes with the detection imaging of the detected unit by the detection probe.

[0042] In a second aspect, the present invention provides a detection method for detecting axial lateral resolution of an ultrasonic imaging device, comprising the following steps:

[0043] Immersing the detection device in an imaging reflective medium, and then placing a detection probe of the ultrasonic imaging device to be detected on the detection portion;

[0044] The imaging of the measured unit by the ultrasonic imaging device and the actual position of the measured unit in the hollow body are observed, and the detection errors of the ultrasonic imaging device in the first direction and the second direction are measured.

[0045] By adopting the above technical solution, when performing resolution testing on an ultrasonic imaging device, the detection device is immersed in an imaging reflective medium, which enters the inner side of the hollow body from the connecting portion. The detection probe of the ultrasonic imaging device to be tested is placed on the detection portion. The detection probe emits ultrasonic waves into the hollow body with the detection portion as the center. The ultrasonic waves are reflected after contacting the unit under test. After the detection probe receives the reflected ultrasonic waves, the ultrasonic imaging device completes the detection imaging. The actual position of the unit under test within the hollow body is compared with the position of the unit under test during ultrasonic imaging, thereby measuring the detection error of the ultrasonic imaging device in the first direction and the second direction. The beneficial effect is that it improves the operational convenience of performing resolution testing on ultrasonic imaging devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 A schematic diagram of the overall structure of an axial lateral resolution detection device for ultrasonic imaging equipment according to an embodiment of the present invention;

[0047] Figure 2 This is a schematic diagram of the overall structure from another angle in an embodiment of the present invention;

[0048] Figure 3 is a schematic cross-sectional view of a detection portion in an embodiment of the present invention;

[0049] Figure 4 is a cross-sectional schematic diagram for highlighting the distribution of the through-holes inside the hollow body in an embodiment of the present invention;

[0050] Figure 5is a schematic diagram for highlighting the first direction and the second direction of the detection area in an embodiment of the present invention;

[0051] Figure 6 This is a schematic diagram of the overall structure of the embodiment of the present invention to highlight the top structure of the hollow body;

[0052] Figure 7 This is a schematic diagram of the overall structure of the embodiment of the present invention to highlight the bottom structure of the hollow body;

[0053] Figure 8 is a partial cross-sectional schematic diagram of a unit under test in an embodiment of the present invention;

[0054] Figure 9 is a schematic diagram of a partial cross-sectional structure of a unit under test in an embodiment of the present invention;

[0055] Figure 10 This is a flow chart of a detection method for an axial lateral resolution detection device of an ultrasonic imaging device according to an embodiment of the present invention.

[0056] Description of reference numerals:

[0057] 1. Hollow body; 2. Connecting part; 3. Supporting foot; 4. Detection part; 41. Detection area; 42. Mounting part; 5. Connecting part; 6. Measured unit; 61. Measured target line; 62. Winding assembly; 621. End structure; 6211. Head end fixing part; 6212. Tail end fixing part; 6213. Head end locking part; 6214. First clamping part; 62141. First clamping fitting part; 622. Middle structure; 6221. Winding middle part; 6222. Second clamping part; 62221. Second clamping fitting part; 7. Through part; 8. Fixing part; 9. Inter-groove; 10. Pressing part; 11. First direction; 12. Second direction. DETAILED DESCRIPTION

[0058] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are 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 making creative work are within the scope of protection of the present invention. Unless otherwise defined, the technical terms or scientific terms used herein should be the common meanings understood by people with ordinary skills in the field to which the invention belongs. The words "including" and similar words used in this article mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects.

[0059] An embodiment of the present invention provides an axial lateral resolution detection device for ultrasonic imaging equipment.

[0060] Reference Figure 1 and Figure 2 The circumferential and lateral resolution detection device for ultrasonic imaging equipment shown includes a hollow body 1, and a connecting portion 2 is opened on at least one side wall of the circumference of the hollow body 1, and the connecting portion 2 is used to connect the inner and outer sides of the hollow body 1.

[0061] In some embodiments, multiple connecting parts 2 are opened on the peripheral side wall of the hollow body 1, and the multiple connecting parts 2 are used to connect the inner and outer sides of the hollow body 1. The multiple connecting parts 2 work together to increase the flow rate of the medium inside and outside the hollow body 1.

[0062] In some embodiments, the connecting portion 2 on the peripheral side wall of the hollow body 1 is arranged as a connecting window, and the connecting window passes through the side wall of the hollow body 1. The connecting portion 2 arranged as a connecting window can expand the connecting area between the inside and outside of the hollow body 1.

[0063] In some other embodiments, the connecting portion 2 on the peripheral side wall of the hollow body 1 is provided as a connecting hole. The connecting portion 2 provided as a connecting hole can improve the structural strength of the hollow body 1 while ensuring that the inner and outer sides of the hollow body 1 are connected to each other.

[0064] In some embodiments, the hollow body 1 is in the shape of a hollow cylinder, and a plurality of connecting portions 2 are intermittently formed on the peripheral side wall of the hollow body 1 .

[0065] In some embodiments, the hollow body 1 is in the shape of a hollow triangular prism, and the connecting portions 2 are respectively formed on the three circumferential side walls of the hollow body 1 .

[0066] In some embodiments, the hollow body 1 is in the shape of a hollow quadrangular prism, and the four circumferential side walls of the hollow body 1 are respectively provided with connecting portions 2 .

[0067] In some embodiments, the hollow body 1 is in the shape of a hollow polygonal column, and the number of edges of the hollow body 1 is greater than four, and a connecting portion 2 is provided on at least one circumferential side wall of the hollow body 1, so that at least two mutually parallel side walls of the hollow body 1 do not have a connecting portion 2, and it is necessary that the connecting portions 2 on the other side walls of the hollow body 1 connect the inside and outside of the hollow body 1.

[0068] In some embodiments, referring to Figure 1 and Figure 2A plurality of support legs 3 are provided on a side wall of the hollow body 1 that is not provided with the connecting portion 2. The ends of the plurality of support legs 3 that are away from the hollow body 1 are located in the same plane. The plurality of support legs 3 cooperate with each other to provide support for the hollow body 1. In some embodiments, the support legs 3 on the hollow body 1 are fixedly mounted on the hollow body 1 by means of threaded rotation.

[0069] Reference Figure 1 and Figure 2 A detection portion 4 is provided inside the hollow body 1, and the detection portion 4 is used to place a detection probe, which is a detection probe of an ultrasonic imaging device to be used for resolution detection.

[0070] In some embodiments, the detection portion 4 is located at the center of the inner side of the hollow body 1. The detection portion 4 is located at the center position and has the same detection distance to other positions in the hollow body 1, and can uniformly detect various positions in the hollow body 1.

[0071] In some embodiments, the detection portion 4 is located at an eccentric position inside the hollow body 1. The detection portion 4 is located at an eccentric position, has a longer detection distance for a specific position inside the hollow body 1, and can detect the imaging resolution of the ultrasonic imaging device at a long distance.

[0072] Reference Figure 1 and Figure 3 The detection part 4 includes a detection area 41, which is used to place the detection probe of the ultrasonic imaging equipment. The detection end of the detection probe is located in the detection area 41 to emit ultrasonic waves. The ultrasonic waves are transmitted inside the hollow body 1 and reflected to the detection probe, so that the detection probe performs ultrasonic detection and imaging on the inside of the hollow body 1.

[0073] In some embodiments, the detection area 41 is located at the exact center of the hollow body 1, and the detection end of the detection probe is placed at the detection area 41. The ultrasonic waves emitted by the detection probe have the same detection distance to other positions within the hollow body 1, and can perform uniform detection and imaging of each position within the hollow body 1.

[0074] In some embodiments, the detection area 41 is located at an eccentric position of the hollow body 1, and the detection end of the detection probe is placed at the detection area 41. The ultrasonic waves emitted by the detection probe have a longer detection distance in a certain direction within the hollow body 1, and can detect the imaging resolution of the ultrasonic imaging equipment at a long distance.

[0075] In some embodiments, referring to Figure 2 and Figure 3The detection part 4 also includes two mounting parts 42, which are symmetrically mounted on two opposite side walls inside the hollow body 1. The two mounting parts 42 are coaxially arranged inside the hollow body 1, and the detection area 41 is located between the two mounting parts 42. The detection end of the detection probe is located at the detection area 41.

[0076] In some embodiments, referring to Figure 2 and Figure 3 A plug-in portion 5 is provided in the mounting portion 42, and the plug-in portion 5 passes through the mounting portion 42 along the setting direction of the two mounting portions 42. The plug-in portions 5 of the two mounting portions 42 correspond to each other, and the plug-in portions 5 of the two mounting portions 42 are interconnected with the inner side of the hollow body 1. The plug-in portion 5 is interconnected with the detection area 41. The plug-in portion 5 is used to plug in the detection probe of the ultrasonic imaging equipment, and the detection end of the detection probe is located at the detection area 41.

[0077] In some embodiments, the plug-in portion 5 is cylindrically opened in the mounting portion 42 , and the plug-in portions 5 on the two mounting portions 42 correspond to each other. The detection probe of the ultrasonic imaging device is inserted into the plug-in portion 5 , and the detection end of the detection probe is located in the detection area 41 .

[0078] In some embodiments, the shape of the opening of the plug-in portion 5 in the mounting portion 42 is adapted to the outer edge shape of the detection probe, so that the detection probe can be stably inserted into the plug-in portion 5 .

[0079] In some embodiments, at least one mounting portion 42 has one end away from the detection area 41 and passes through the side wall of the hollow body 1, and a landing portion is provided at the end of the mounting portion 42 that passes through the side wall of the hollow body 1, and the plug-in portion 5 passes through the landing portion. When the detection probe is placed, the detection probe is inserted into the plug-in portion 5 from the landing portion.

[0080] In some embodiments, a landing chamfer is provided on a side of the landing portion relatively away from the mounting portion 42, and the landing chamfer is provided on the opening side of the plug-in portion 5. When the detection probe is inserted into the plug-in portion 5 from the landing portion, the landing chamfer improves the convenience of plugging the detection probe.

[0081] In some embodiments, the mounting portion 42 is in the shape of a through cylindrical tube, and two cylindrical tube-shaped mounting portions 42 are disposed opposite to each other.

[0082] In some embodiments, the mounting portion 42 is in the shape of a through polygonal tube, and two mounting portions 42 in the shape of polygonal tubes are disposed opposite to each other.

[0083] In some embodiments, the two mounting portions 42 are symmetrically arranged at the center of the inner side of the hollow body 1 , so that the detection area 41 is located at the center of the hollow body 1 .

[0084] In some embodiments, the two mounting portions 42 are symmetrically disposed at eccentric positions inside the hollow body 1 , so that the detection area 41 is located at an eccentric position of the hollow body 1 .

[0085] In some embodiments, the two mounting portions 42 have the same length inside the hollow body 1 , so that the sidewalls of the hollow body 1 connecting the two mounting portions 42 are at the same distance from the detection area 41 .

[0086] In some embodiments, the lengths of the two mounting portions 42 inside the hollow body 1 are unequal, so that the detection area 41 is located inside the hollow body 1 closer to a side wall.

[0087] In some embodiments, referring to Figure 2 and Figure 3 The mounting portion 42 is gradually closed on one side approaching the detection area 41, so that when the detection end of the detection probe is located in the detection area 41 to perform ultrasonic detection and imaging on the inner side of the hollow body 1, no strong reflection will be formed around the detection area 41 to interfere with the final imaging.

[0088] In some embodiments, the cross-sectional size of the mounting portion 42 gradually decreases along a direction perpendicular to the mounting direction thereof.

[0089] In some embodiments, the wall thickness of a 1 cm portion of the end of the mounting portion 42 is 0.5 mm, and the end is the end of the mounting portion 42 close to the detection area 41 .

[0090] In some embodiments, the overall wall thickness of the mounting portion 42 is 0.5 mm.

[0091] Reference Figure 1 and Figure 2 The hollow body 1 is surrounded by at least two test units 6, which interact with the detection probe to perform ultrasonic imaging resolution detection. The detection probe emits ultrasonic waves within the hollow body 1. When the ultrasonic waves propagate within the hollow body 1 and hit the test units 6, they are reflected at the test units 6. After the detection probe captures the reflections, the detection probe transmits the information to the ultrasonic imaging device for imaging.

[0092] In some embodiments, three measured units 6 are disposed in the hollow body 1 .

[0093] In some embodiments, four measured units 6 are disposed in the hollow body 1 .

[0094] Reference Figure 1 、 Figure 4 and Figure 5 At least two measured units 6 are respectively located in a first direction 11 and a second direction 12 of the detection part 4, and the first direction 11 is a radial direction with the detection part 4 as the center, and the second direction 12 is a circumferential direction with the detection part 4 as the center.

[0095] In some embodiments, the hollow body 1 is provided with a measured unit 6 in the first direction 11 of the detection portion 4 , and is provided with a measured unit 6 in the second direction 12 of the detection portion 4 .

[0096] In some embodiments, the hollow body 1 is provided with two measured units 6 in the first direction 11 of the detection part 4, and the two measured units 6 in the first direction 11 are located on both sides of the detection part 4; the hollow body 1 is provided with one measured unit 6 in the second direction 12 of the detection part 4.

[0097] In some embodiments, the hollow body 1 is provided with a measured unit 6 in the first direction 11 of the detection part 4 , and two measured units 6 are provided in the second direction 12 of the detection part 4 , and the two measured units 6 are located on the same straight line as the detection part 4 .

[0098] In some embodiments, the hollow body 1 is located at two measured units 6 arranged in the second direction 12 of the detection portion 4 , and an angle exists between the line connecting the two measured units 6 and the detection portion 4 .

[0099] In some embodiments, the measured unit 6 disposed in the first direction 11 of the hollow body 1 and the detecting portion 4 has a minimum distance of 7 mm from the detecting portion 4 and a maximum distance of 15 mm from the detecting portion 4 .

[0100] In some embodiments, the measured unit 6 disposed in the second direction 12 of the hollow body 1 and the detecting portion 4 has a minimum distance of 2 mm from the detecting portion 4 and a maximum distance of 19 mm from the detecting portion 4 .

[0101] In some embodiments, at least two measured units 6 are provided in the hollow body 1 in the second direction 12 of the detection portion 4 , and the shortest distance between two adjacent measured units 6 is 0.5 mm.

[0102] In some embodiments, referring to Figure 1 The measured unit 6 includes a measured target line 61, at least part of the measured target line 61 is located on the inner side of the hollow body 1, and the part of the measured target line 61 located on the inner side of the hollow body 1 is parallel to the detection part 4, the measured target line 61 corresponds to the detection probe of the ultrasonic imaging equipment to be detected, and the measured target line 61 can reflect ultrasonic waves.

[0103] In some embodiments, when the target wire 61 in the hollow body 1 is broken or needs to be replaced due to other circumstances, the target wire 61 on the corresponding unit under test 6 can be replaced.

[0104] In some embodiments, the target line 61 is made of nylon.

[0105] In some embodiments, at least the portion of the target line 61 located inside the hollow body 1 is made of nylon.

[0106] In some embodiments, at least the portion of the target line 61 corresponding to the detection probe is made of nylon.

[0107] In some embodiments, the diameter of the target wire 61 is 50 μm.

[0108] In some embodiments, the diameter of at least the portion of the target wire 61 located inside the hollow body 1 is 50 μm.

[0109] In some embodiments, the diameter of at least the portion of the target wire 61 corresponding to the detection probe is 50 μm.

[0110] In some embodiments, referring to Figure 1 and Figure 4 Through-portions 7 are formed on two opposing side walls of the hollow body 1. Through-portions 7 are located on the side walls of the hollow body 1 that are not provided with the connecting portion 2. Through-portions 7 penetrate the side walls of the hollow body 1, and the through-portions 7 on the two side walls of the hollow body 1 are arranged opposite each other. Through-portions 7 are arranged corresponding to the units under test 6, and each unit under test 6 corresponds to at least two opposing through-portions 7 on the side walls of the hollow body 1.

[0111] In some embodiments, the measured unit 6 includes a measured target line 61 , the two ends of which are respectively passed through the through parts 7 on the two side walls of the hollow body 1 , and the part of the measured target line 61 located inside the hollow body 1 is parallel to the detection part 4 .

[0112] In some embodiments, referring to Figure 6 and Figure 7 , unit under test 6 (see Figure 1 ) includes a target line 61 to be measured, which passes back and forth through the through-holes 7 on the two side walls of the hollow body 1, so that the target line 61 to be measured forms two parallel parts on the inner side of the hollow body 1. At this time, the head and tail ends of the target line 61 are located in the same through-hole 7 on the side wall of the hollow body 1.

[0113] In some embodiments, the measured unit 6 includes a measured target line 61, which passes back and forth through the through-holes 7 on the two side walls of the hollow body 1, so that the measured target line 61 forms three parallel parts on the inner side of the hollow body 1. At this time, the head and tail ends of the measured target line 61 are respectively located in the two through-holes 7 on the side walls of the hollow body 1.

[0114] In some embodiments, the measured unit 6 includes two measured target lines 61, and the two measured target lines 61 pass through the through-holes 7 on the two side walls of the hollow body 1, so that the head ends of the two measured target lines 61 are located in the same through-hole 7, the tail ends of the two target lines are located in another through-hole 7, and the parts of the two target lines located on the inner side of the hollow body 1 are parallel to each other.

[0115] In some embodiments, the measured units 6 located in the first direction 11 inside the hollow body 1 share a measured target line 61, and the measured target line 61 passes back and forth through the through-holes 7 on the two side walls of the hollow body 1, so that the measured target line 61 enters and exits the hollow body 1 from the through-holes 7 on the first direction 11 inside the hollow body 1, so that the parts of the measured target line 61 in the first direction 11 inside the hollow body 1 are parallel to each other.

[0116] In some embodiments, the measured units 6 located in the second direction 12 inside the hollow body 1 share a measured target line 61, and the measured target line 61 passes back and forth through the through-holes 7 on the two side walls of the hollow body 1, so that the measured target line 61 enters and exits the hollow body 1 from the through-holes 7 on the second direction 12 inside the hollow body 1, so that the parts of the measured target line 61 in the second direction 12 inside the hollow body 1 are parallel to each other.

[0117] In some embodiments, all the measured units 6 inside the hollow body 1 share a measured target line 61, and the measured target line 61 passes back and forth through the through-holes 7 on the two side walls of the hollow body 1, so that the measured target line 61 enters and exits the hollow body 1 from the through-holes 7 on the hollow body 1, and the parts of the measured target line 61 inside the hollow body 1 are parallel to each other.

[0118] In some embodiments, the through portion 7 is in the shape of a circular hole.

[0119] In some embodiments, the through portion 7 is in the shape of a waist hole.

[0120] In some embodiments, the through portion 7 is of any shape, as long as the target line 61 can pass through the through portion 7 .

[0121] In some embodiments, referring to Figure 1 and Figure 2 The measured unit 6 includes a winding assembly 62, which is located at the through-hole 7 outside the hollow body 1. The measured target line 61 is wound on the winding assembly 62. The winding assembly 62 guides and reverses the measured target line 61, so that the measured target line 61 changes its direction by 180° at the through-hole 7 and then passes through the through-hole 7 again to enter the hollow body 1.

[0122] In some embodiments, the winding assembly 62 of the measured unit 6 is arranged between two through-parts 7. After the measured target line 61 passes through one of the through-parts 7 and is wound on the winding assembly 62, the winding assembly 62 guides and reverses the measured target line 61 so that the measured target line 61 re-enters the through-part 7 from the other through-part 7 and enters the hollow body 1.

[0123] In some embodiments, the measured unit 6 includes two winding assemblies 62. The two ends of the measured target line 61 pass through the corresponding through-holes 7 and are fixed on the winding assemblies 62. The part of the measured target line 61 located inside the hollow body 1 is parallel to the detection part 4.

[0124] In some embodiments, the measured unit 6 includes two winding assemblies 62. After the tail end of the target line 61 to be measured is pre-fixed on the winding assembly 62, the target line 61 to be measured is passed through the through-portion 7, and then the target line 61 to be measured is passed out from the through-portion 7 on the other side. After the target line 61 to be measured is wound on the winding assembly 62 and reversed, it is passed through the through-portion 7 again, and the head end and tail end of the target line 61 to be measured are fixed on the same winding assembly 62.

[0125] In some embodiments, referring to Figure 1 and Figure 2 The hollow body 1 is provided with a fixing portion 8 at the winding assembly 62 . The fixing portion 8 is used to install and fix the winding assembly 62 . The fixing portion 8 improves the position stability of the winding assembly 62 on the side wall of the hollow body 1 .

[0126] In some embodiments, referring to Figure 6 and Figure 7 The winding assembly 62 includes an end structure 621 and a middle structure 622. The end structure 621 and the middle structure 622 are both installed on the fixing part 8. The end structure 621 and the middle structure 622 are both located on the outside of the hollow body 1 and are arranged corresponding to the through part 7. The head and tail ends of the target line 61 to be measured are respectively fixed on the end structure 621, and the middle part of the target line to be measured is wound on the middle structure 622.

[0127] In some embodiments, referring to Figure 6 and Figure 7 The hollow body 1 is provided with two fixing parts 8 at the winding assembly 62. The two fixing parts 8 are symmetrically arranged, and the end structure 621 and the middle structure 622 are installed between the two fixing parts 8. The two ends of the end structure 621 and the middle structure 622 are respectively located on the two fixing parts 8, and the target line 61 to be measured is located between the two fixing parts 8.

[0128] In some embodiments, the end structure 621 and the middle structure 622 are fixedly disposed between the two fixing portions 8. The tail end of the target wire 61 is pre-fixed to the end structure 621. The fixed arrangement of the end structure 621 prevents the position of the target wire 61 from deflecting. The target wire 61 is passed through the through-portion 7 and then exits the through-portion 7 on the other side, bypassing the middle structure 622 on the other side to complete the direction change of the target wire 61. The fixed arrangement of the end structure 621 and the middle structure 622 can improve the positional stability of the target wire 61 after the winding is completed.

[0129] In some embodiments, the end structure 621 and the middle structure 622 are rotatably arranged between the two fixed parts 8, and the end structure 621 and the middle structure 622 are rotated along the winding direction of the target line 61. The tail end of the target line 61 is pre-tied to the end structure 621, and then the target line 61 is passed through the through-part 7 until the target line 61 passes around the middle structure 622 on the other side of the hollow body 1. Since the middle structure 622 can rotate, it can help the routing of the target line 61 during the winding process of the target line 61.

[0130] In some embodiments, the end structure 621 is fixed between the two fixing parts 8, and the middle structure 622 is rotatably set between the two fixing parts 8. The tail end of the target line 61 is fixed and tied to the end structure 621 in advance, and then the target line 61 is inserted into the through-hole 7. After the target line 61 passes around the middle structure 622 on the other side of the hollow body 1, it is inserted into the through-hole 7, returns and is fixed on the end structure 621, and the head and tail ends of the target line 61 are located on the same side of the hollow body 1.

[0131] In some embodiments, the winding assembly 62 includes two end structures 621 and a middle structure 622. The two end structures 621 and the middle structure 622 are both located on the fixing portion 8. The two end structures 621 are symmetrically arranged about the middle structure 622. The tail end of the target wire 61 is fixedly tied to one of the end structures 621. The target wire 61 is then passed through the through portion 7 so that the target wire 61 enters the inner side of the hollow body 1. The target wire 61 is then passed through the hollow body 1 to the other side of the hollow body 1. The through-portion 7 on one side passes through and is wound around the middle structure 622. After the target line 61 is wound around the middle structure 622, it re-enters the through-portion 7 and passes through the inner side of the hollow body 1 and the through-portion 7 on the other side of the hollow body 1 in turn, and the head end of the target line 61 is fixed on the other end structure 621. The head and tail ends of the target line 61 are respectively fixed on two different end structures 621, and the part of the target line 61 located on the inner side of the hollow body 1 is arranged parallel to the detection part 4.

[0132] In some embodiments, the hollow body 1 is provided with two corresponding winding assemblies 62 at two corresponding through portions 7. The two winding assemblies 62 are respectively referred to as the first winding assembly and the second winding assembly. The first winding assembly includes two end structures 621 and a middle structure 622, and the second winding assembly includes two middle structures 622.

[0133] The tail end of the target wire 61 is fixedly tied to an end structure 621 in the first winding assembly, and then the target wire 61 is passed through the through-portion 7 for the first time into the inner side of the hollow body 1. After passing through the inner side of the hollow body 1, the target wire 61 comes out from the through-portion 7 on the other side of the hollow body 1. After the passed target wire 61 bypasses a middle structure 622 in the second winding assembly, the bypassed target wire 61 is passed through the through-portion 7 for the second time into the inner side of the hollow body 1. After passing through the inner side of the hollow body 1, it comes out from the through-portion 7 on the other side of the hollow body 1. At this time, the two parts of the target wire 61 on the inner side of the hollow body 1 are parallel to the detection part 4.

[0134] After the target line 61 that has passed through is wrapped around the middle structure 622 in the first winding assembly, the target line 61 is passed through the through-portion 7 into the inner side of the hollow body 1 for the third time and then passes through the through-portion 7 on the other side of the hollow body 1. After the target line 61 that has passed through is wrapped around another middle structure 622 in the second winding assembly, the bypassed target line 61 is passed through the inner side of the hollow body 1 for the fourth time from the through-portion 7 and then passes through the through-portion 7 on one side of the middle body. The head end of the target line 61 is fixedly tied to the other end structure 621 of the first winding assembly. At this time, the four parts of the target line 61 on the inner side of the hollow body 1 are parallel to the detection part 4.

[0135] In some embodiments, the hollow body 1 is provided with two corresponding winding assemblies 62 at two corresponding through portions 7. The two winding assemblies 62 are respectively referred to as the first winding assembly and the second winding assembly. The first winding assembly includes two end structures 621, and the second winding assembly includes a middle structure 622.

[0136] The tail end of the target wire 61 to be measured is fixedly tied to an end structure 621 in the first winding assembly, and then the target wire 61 to be measured is passed through the through-portion 7 for the first time into the inner side of the hollow body 1. After passing through the inner side of the hollow body 1, the target wire 61 passes through the through-portion 7 on the other side of the hollow body 1. After the passed-through target wire 61 goes around the middle structure 622 in the second winding assembly, the target wire 61 to be measured is passed through the inner side of the hollow body 1 for the second time from the through-portion 7. After passing through the inner side of the hollow body 1, the target wire 61 passes through the through-portion 7 on the other side of the hollow body 1. The head end of the target wire 61 to be measured is fixedly tied to the other end structure 621 in the first winding assembly. At this time, the two parts of the target wire 61 to be measured on the inner side of the hollow body 1 are parallel to the detection part 4.

[0137] In some embodiments, the hollow body 1 is provided with two corresponding winding assemblies 62 at two corresponding through-holes 7, and the two winding assemblies 62 are respectively referred to as the first winding assembly and the second winding assembly, the first winding assembly includes M end structures 621 and N middle structures 622, the second winding assembly includes m end structures 621 and n middle structures 622, and M, N, m and n are all greater than or equal to 0, and at least one of M and N is not equal to 0, and at least one of m and n is not equal to 0, so that after the target line 61 to be measured is respectively wound in the first winding assembly and the second winding assembly, the part of the target line 61 to be measured located in the hollow body 1 is parallel to the detection part 4.

[0138] In some embodiments, the end structure 621 and the middle structure 622 are both cylindrical, and the axes of the end structure 621 and the middle structure 622 are parallel to each other. The axes of the end structure 621 and the middle structure 622 are perpendicular to the winding and moving direction of the target line 61 to be measured. The cylindrical end structure 621 and the middle structure 622 can reduce scratches on the surface of the target line 61 to be measured.

[0139] In some embodiments, the end structure 621 and the middle structure 622 are both prismatic, and the axes of the end structure 621 and the middle structure 622 are parallel to each other, and the axes of the end structure 621 and the middle structure 622 are perpendicular to the winding movement direction of the target line 61 to be measured.

[0140] In some embodiments, the shapes of the end structure 621 and the middle structure 622 are such that after the target line 61 passes over the end structure 621 and the middle structure 622 , the portion of the target line 61 inside the hollow body 1 is parallel to the detection portion 4 .

[0141] In some embodiments, grooves are correspondingly provided on the peripheral side walls of the end structure 621 and the middle structure 622 , and the grooves are beneficial for improving the position stability of the target line 61 to be measured on the end structure 621 and the middle structure 622 .

[0142] In some embodiments, referring to Figure 7 and Figure 8 The end structure 621 includes a head end fixing portion 6211 , and the head end of the target line 61 to be measured is fixed to the head end fixing portion 6211 .

[0143] In some embodiments, the head end of the target line 61 to be measured is fixedly clamped on the head end fixing portion 6211 .

[0144] In some embodiments, the head end of the target line 61 is fixedly tied to the head end fixing portion 6211 .

[0145] In some embodiments, the head end of the target line 61 to be measured is fixed to the head end fixing portion 6211 using glue.

[0146] In some embodiments, the head end fixing portion 6211 is cylindrical, and the target line 61 to be measured is fixed to the head end fixing portion 6211 along a tangential direction of the head end fixing portion 6211 .

[0147] In some embodiments, the head-end fixing portion 6211 is cylindrical, and the target line 61 to be measured is fixed to the head-end fixing portion 6211 in a radial direction of the head-end fixing portion 6211 .

[0148] In some embodiments, a clamping slot is provided on the head end fixing portion 6211 , and the head end of the target wire 61 to be measured is clamped in the clamping slot of the head end fixing portion 6211 to tighten the head end of the target wire 61 to be measured.

[0149] In some embodiments, the head end fixing portion 6211 is provided with an annular groove, the head end of the target wire 61 is wound in the annular groove, and the head end of the target wire 61 is bundled or fixed with glue to fix the head end of the target wire 61.

[0150] In some embodiments, the end structure 621 includes a tail end fixing portion 6212 , and the tail end of the target line 61 to be measured is fixed to the tail end fixing portion 6212 .

[0151] In some embodiments, the tail end of the target line 61 is fixedly clamped on the tail end fixing portion 6212 .

[0152] In some embodiments, the tail end of the target line 61 is fixedly tied to the tail end fixing portion 6212 .

[0153] In some embodiments, the tail end of the target line 61 is fixed to the tail end fixing portion 6212 using glue.

[0154] In some embodiments, the tail end fixing portion 6212 is cylindrical, and the target line 61 to be measured passes through the through portion 7 from a tangential direction of the tail end fixing portion 6212 .

[0155] In some embodiments, the tail end fixing portion 6212 is cylindrical, and the target line 61 to be measured passes through the through portion 7 from the radial direction of the tail end fixing portion 6212 .

[0156] In some embodiments, a slot is provided on the tail end fixing portion 6212 , and the tail end of the target wire 61 to be measured is clamped in the slot of the tail end fixing portion 6212 to tighten the tail end of the target wire 61 to be measured.

[0157] In some embodiments, a ring groove is formed on the tail end fixing portion 6212, and the tail end of the target line 61 is wound in the ring groove, and the tail end of the target line 61 is tied or fixed with glue to fix the tail end of the target line 61.

[0158] In some embodiments, referring to Figure 7The end structure 621 includes a head end locking portion 6213, which is located on the side wall of the hollow body 1. After the head end of the target line 61 passes through the through portion, the head end of the target line 61 is fixed to the head end locking portion 6213.

[0159] In some embodiments, referring to Figure 7 and Figure 8 After the head end of the target line 61 passes through the through portion, the target line 61 is passed around the tail end fixing portion 6212 , and then the head end of the target line 61 is fixed on the head end locking portion 6213 .

[0160] In some embodiments, the head end locking portion 6213 adopts a bolt locking method to fix the end of the target line 61 to the head end locking portion 6213, and then the bolt in the head end locking portion 6213 is rotated to fix the target line 61. At the same time, the tightness of the target line 61 can be adjusted by rotating the bolt.

[0161] In some embodiments, the head end locking portion 6213 is fixed by screws or other similar structures to achieve the necessary fixation of the target line 61 to be measured.

[0162] In some embodiments, referring to Figure 8 and Figure 9 The end structure 621 includes a first clamping portion 6214 , the target line 61 passes through the first clamping portion 6214 , and a clearance fit is formed between the target line 61 and the first clamping portion 6214 .

[0163] In some embodiments, the first clamping portion 6214 is located outside the side wall of the hollow body 1. The target line 61 first passes through the first clamping portion 6214 and then enters the through-portion 7. After passing through the through-portion 7, the target line 61 enters the first clamping portion 6214. The portion of the target line 61 located within the first clamping portion 6214 does not contact the first clamping portion 6214, allowing the target line 61 to move freely between the first clamping portions 6214.

[0164] In some embodiments, the first clamping portion 6214 is embedded in the side wall of the hollow body 1, and there is a gap between the first clamping portion 6214 for the target line 61 to pass through, and the size of the gap is sufficient to allow the target line 61 to move freely, and the gap on the first clamping portion 6214 is connected to the through portion 7.

[0165] In some embodiments, the first clamping portion 6214 includes two first clamping fitting portions 62141 , which are parallel to each other and have a gap therebetween. The target line 61 passes through the gap between the two first clamping fitting portions 62141 .

[0166] In some embodiments, the two first clamping fitting portions 62141 are fixedly disposed on the side wall of the hollow body 1 , and the gap between the two first clamping fitting portions 62141 is correspondingly connected to the through portion 7 on the hollow body 1 .

[0167] In some embodiments, the two first clamping fitting portions 62141 are fixedly embedded in the side wall of the hollow body 1 , and the gap between the two first clamping fitting portions 62141 is communicated with the through portion 7 on the hollow body 1 .

[0168] In some embodiments, the two first clamping fitting portions 62141 are rotatably disposed on the side wall of the hollow body 1 .

[0169] In some embodiments, the two first clamping fitting portions 62141 are rotatably embedded in the side wall of the hollow body 1 .

[0170] In some embodiments, the two first clamping fitting portions 62141 are both cylindrical, and the two cylindrical first clamping fitting portions 62141 are parallel to each other. There is a gap between the two first clamping fitting portions 62141, and the target line 61 passes through the gap.

[0171] In some embodiments, referring to Figure 8 and Figure 9 The two first clamping fitting parts 62141 are both cylindrical, and the two cylindrical first clamping fitting parts 62141 are parallel to each other. A groove 9 is provided on the peripheral side wall of one of the first clamping fitting parts 62141. The groove 9 forms a gap between the two first clamping fitting parts 62141, and the target line 61 to be measured passes through the groove 9.

[0172] In some embodiments, both first clamping fitting portions 62141 are cylindrical and parallel to each other. A slot 9 is defined on the circumferential sidewalls of both first clamping fitting portions 62141. The slots 9 on the two first clamping fitting portions 62141 correspond to each other, forming a gap through which the target line 61 passes. In some embodiments, the two first clamping fitting portions 62141 are located at opposite ends of the slot 9 and contact each other. In other embodiments, the two first clamping fitting portions 62141 are located at opposite ends of the slot 9 and are separated from each other.

[0173] In some embodiments, the two first clamping fitting portions 62141 are both prismatic in shape, so that the target line 61 to be measured can pass through between the two first clamping fitting portions 62141 .

[0174] In some embodiments, the gap between the two first clamping fitting portions 62141 is 0.07 mm.

[0175] In some embodiments, the gap between the two first clamping mating parts 62141 is between 0.06 mm and 0.08 mm.

[0176] In some embodiments, the ratio of the gap between the two first clamping mating parts 62141 to the wire diameter of the measured target wire 61 is between 1.2 and 1.6.

[0177] In some embodiments, if the wire diameter of the measured target wire 61 is A mm, then the gap between the two first clamping mating parts 62141 is between (A + 0.01) mm and (A + 0.03) mm.

[0178] In some embodiments, the first clamping part 6214 includes a first clamping mating part 62141 with a gap thereon, and the measured target wire 61 passes through the gap of the end clamping mating part.

[0179] In some embodiments, the gap on the first clamping mating part 62141 is 0.07 mm.

[0180] In some embodiments, the gap on the first clamping mating part 62141 is between 0.06 mm and 0.08 mm.

[0181] In some embodiments, the ratio of the gap on the first clamping mating part 62141 to the wire diameter of the measured target wire 61 is between 1.2 and 1.6.

[0182] In some embodiments, if the wire diameter of the measured target wire 61 is A mm, then the gap on the first clamping mating part 62141 is between (A + 0.01) mm and (A + 0.03) mm.

[0183] In some embodiments, pressing parts 10 are installed on both sides of the first clamping part 6214, and the pressing parts 10 fixedly install the end clamping part on the hollow body 1.

[0184] In some embodiments, the pressing part 10 is in a "C" shape, and both ends of the pressing part 10 are pressed against both ends of the first clamping part 6214.

[0185] In some embodiments, the pressing part 10 is fixedly installed on the side wall of the hollow body 1 by bolts.

[0186] In some embodiments, referring to Figure 8 and Figure 9 , the middle structure 622 includes a wire winding middle part 6221, the measured target wire 61 is wound around the wire winding middle part 6221, and after the measured target wire 61 passes around the wire winding middle part 6221, the parts of the measured target wire 61 on both sides of the wire winding middle part 6221 are parallel to each other.

[0187] In some embodiments, the winding middle portion 6221 is cylindrical, and the target line 61 is wound on the side wall of the winding middle portion 6221 . The winding middle portion 6221 serves to turn the winding of the target line 61 .

[0188] In some embodiments, the target wire 61 may be wound around the winding middle portion 6221 for multiple turns.

[0189] In some embodiments, the winding middle portion 6221 is hourglass-shaped, and the hourglass-shaped winding middle portion 6221 is inverted and arranged on the side wall of the hollow body 1 , so that the target line 61 can be wound around the waist of the winding middle portion 6221 .

[0190] In some embodiments, referring to Figure 8 and Figure 9 The middle structure 622 includes a second clamping portion 6222 , the target line 61 passes through the second clamping portion 6222 , and a clearance fit is formed between the target line 61 and the second clamping portion 6222 .

[0191] In some embodiments, the second clamping portion 6222 is located outside the side wall of the hollow body 1. After passing through the second clamping portion 6222, the target line 61 enters the through-hole 7. After passing through the through-hole 7, the target line 61 enters the second clamping portion 6222. The portion of the target line 61 located within the second clamping portion 6222 does not contact the second clamping portion 6222, allowing the target line 61 to move freely between the second clamping portions 6222.

[0192] In some embodiments, the second clamping portion 6222 is embedded in the side wall of the hollow body 1, and there is a gap between the second clamping portion 6222 for the target line 61 to pass through, and the size of the gap is sufficient to allow the target line 61 to move freely, and the gap on the second clamping portion 6222 is connected to the through portion 7.

[0193] In some embodiments, referring to Figure 8 and Figure 9 The second clamping portion 6222 includes two second clamping fitting portions 62221 . The two second clamping fitting portions 62221 are parallel to each other, and there is a gap between the two second clamping fitting portions 62221 . The target line 61 passes through the gap between the two second clamping fitting portions 62221 .

[0194] In some embodiments, the two second clamping fitting portions 62221 are fixedly disposed on the side wall of the hollow body 1 , and the gap between the two second clamping fitting portions 62221 is correspondingly connected to the through portion 7 on the hollow body 1 .

[0195] In some embodiments, the two second clamping fitting portions 62221 are fixedly embedded in the side wall of the hollow body 1 , and the gap between the two second clamping fitting portions 62221 is communicated with the through portion 7 on the hollow body 1 .

[0196] In some embodiments, the two second clamping fitting portions 62221 are rotatably disposed on the side wall of the hollow body 1 .

[0197] In some embodiments, the two second clamping fitting portions 62221 are rotatably embedded in the side wall of the hollow body 1 .

[0198] In some embodiments, the two second clamping fitting portions 62221 are both cylindrical, and the two cylindrical second clamping fitting portions 62221 are parallel to each other. There is a gap between the two second clamping fitting portions 62221, and the target line 61 passes through the gap.

[0199] In some embodiments, the two second clamping fitting portions 62221 are both cylindrical, and the two cylindrical second clamping fitting portions 62221 are parallel to each other. A groove 9 is provided on the peripheral side wall of one of the second clamping fitting portions 62221, and the groove 9 forms a gap between the two second clamping fitting portions 62221, and the target line 61 to be measured passes through the groove 9.

[0200] In some embodiments, both second clamping portions 62221 are cylindrical and parallel to each other. A slot 9 is defined on the circumferential sidewalls of both second clamping portions 62221. The slots 9 on the two second clamping portions 62221 correspond to each other, forming a gap through which the target line 61 passes. In some embodiments, the two second clamping portions 62221 are located at opposite ends of the slot 9 and contact each other. In other embodiments, the two second clamping portions 62221 are located at opposite ends of the slot 9 and are separated from each other.

[0201] In some embodiments, the two second clamping fitting portions 62221 are both prismatic in shape, so that the target line 61 to be measured can pass through between the two second clamping fitting portions 62221 .

[0202] In some embodiments, the gap between the two second clamping fitting portions 62221 is 0.07 mm.

[0203] In some embodiments, the gap between the two second clamping fitting portions 62221 is between 0.06 mm and 0.08 mm.

[0204] In some embodiments, the ratio of the gap between the two second clamping fitting portions 62221 to the wire diameter of the target wire 61 to be measured is between 1.2 and 1.6.

[0205] In some embodiments, the diameter of the target wire 61 to be measured is A mm, and the gap between the two second clamping fitting portions 62221 is between (A+0.01) mm and (A+0.03) mm.

[0206] In some embodiments, the second clamping portion 6222 includes a second clamping mating portion 62221 with a gap thereon, and the measured target wire 61 passes through the gap of the second clamping mating portion 62221.

[0207] In some embodiments, the size of the gap on the second clamping mating portion 62221 is 0.07 mm.

[0208] In some embodiments, the size of the gap on the second clamping mating portion 62221 is between 0.06 - 0.08 mm.

[0209] In some embodiments, the ratio of the size of the gap on the second clamping mating portion 62221 to the wire diameter of the measured target wire 61 is between 1.2 - 1.6.

[0210] In some embodiments, if the wire diameter of the measured target wire 61 is A mm, then the size of the gap on the second clamping mating portion 62221 is between (A + 0.01) mm - (A + 0.03) mm.

[0211] In some embodiments, pressing portions 10 are installed on both sides of the second clamping portion 6222, and the pressing portions 10 fixedly install the second clamping portion 6222 on the hollow body 1.

[0212] In some embodiments, the pressing portion 10 is in a "C" shape, and both ends of the pressing portion 10 are pressed against both ends of the second clamping portion 6222.

[0213] In some embodiments, the pressing portion 10 is fixedly installed on the side wall of the hollow body 1 by bolts.

[0214] Refer to Figure 10 , and in the embodiments of the present invention, a detection method for an axial and lateral resolution detection device for an ultrasonic imaging device is also disclosed, including the following steps:

[0215] S100. Immerse the detection device in the imaging reflection medium, and then place the detection probe of the ultrasonic imaging device to be detected on the detection portion;

[0216] S200. Observe the imaging of the ultrasonic imaging device on the measured unit and the actual position of the measured unit in the hollow body, and measure the detection errors of the ultrasonic imaging device in the first direction 11 (see Figure 4 ) and the second direction 12 (see Figure 4 ).

[0217] In some embodiments, the detection device is completely submerged in the imaging reflection medium.

[0218] In some embodiments, the upper top surface of the detection device is flush with the liquid surface of the imaging reflection medium.

[0219] In some embodiments, the imaging reflective medium is purified water.

[0220] In some embodiments, the imaging reflective medium is tap water that meets national tap water quality standards.

[0221] While the embodiments of the present invention have been described in detail above, it will be apparent to those skilled in the art that various modifications and variations of these embodiments are possible. However, it should be understood that such modifications and variations are within the scope and spirit of the present invention as set forth in the claims. Furthermore, the invention described herein is susceptible to other embodiments and may be practiced or implemented in a variety of ways.

Claims

1. An axial lateral resolution detection device for ultrasonic imaging equipment, characterized in that: include: A hollow body, wherein a connecting portion is provided on the circumference of the hollow body, and the connecting portion is used to connect the inner and outer sides of the hollow body; A detection part is arranged in the hollow body, and the detection part is used to place a detection probe of an ultrasonic imaging device; The hollow body is provided with through-portions on two opposite side walls, and the through-portions on the two side walls of the hollow body are arranged opposite to each other; The target lines to be measured are sequentially arranged in the through-holes on the two side walls of the hollow body; The hollow body is located at the detection part and is surrounded by at least two units to be tested; One end of the unit under test is located at the top of the hollow body, the other end of the unit under test is located at the bottom corresponding to the top of the hollow body, and the middle part of the unit under test is located in the hollow body and parallel to the detection part; The measured unit includes a measured target line, at least part of which is located inside the hollow body; The target line to be measured is wound around two ends of the unit to be measured, and the portion of the target line to be measured located inside the hollow body is parallel to the detection part; The detection probe is used to detect the portion of the target line to be detected within the hollow body, so as to perform ultrasonic imaging resolution detection; The measured unit comprises a winding assembly, the winding assembly is located at the through-hole, the measured target line is wound on the winding assembly, and the winding assembly is used to guide and reverse the measured target line; The winding assembly comprises an end structure and a middle structure, wherein the end structure and the middle structure are relatively arranged on two opposite side walls of the hollow body; The ends of the target line to be measured are located at the end structures, and the middle part of the target line to be measured is wound around the middle structure; The end structure comprises a head end fixing portion, and the end of the target line to be measured is fixedly arranged on the head end fixing portion; The end structure comprises a tail end fixing portion, and the tail end of the target line to be measured is fixedly arranged on the tail end fixing portion; The end structure comprises a first clamping portion, the target line to be measured passes through the first clamping portion, and there is a clearance fit between the target line to be measured and the first clamping portion; The middle structure includes a winding middle part, the target line to be measured is wound around the winding middle part, and two parts of the target line to be measured that are wound around the winding middle part are parallel to each other; The middle structure comprises a second clamping portion, the target line to be measured passes through the second clamping portion, and there is a clearance fit between the target line to be measured and the second clamping portion; The detection probe is used to detect the portion of the unit under test located in the hollow body to perform ultrasonic imaging resolution detection; At least two of the measured units are respectively located in a first direction and a second direction of the detection portion; The first direction is a radial direction with the detection part as the center, and the second direction is a circumferential direction with the detection part as the center.

2. The detection device according to claim 1, characterized in that: The detection part comprises a detection area, the detection area is located inside the hollow body, and the detection area is used to place a detection probe of an ultrasonic imaging device; The unit under test is located in a first direction and a second direction of the detection area.

3. The detection device according to claim 2, characterized in that: The detection part includes two mounting parts, the two mounting parts are symmetrically mounted on two inner side walls of the hollow body, and the detection area is located between the two mounting parts; The mounting portion is used for placing the detection probe so that the detection end of the detection probe is located in the detection area.

4. The detection device according to claim 3, characterized in that: The side of the installation portion close to the detection area is closed.

5. The detection method of the axial lateral resolution detection device for ultrasonic imaging equipment according to any one of claims 1 to 4, characterized in that: The following steps are involved: Immersing the detection device in an imaging reflective medium, and then placing a detection probe of the ultrasonic imaging device to be detected on the detection part; The imaging of the measured unit by the ultrasonic imaging device and the actual position of the measured unit in the hollow body are observed, and the detection errors of the ultrasonic imaging device in the first direction and the second direction are measured.

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