CN216675776U - Ultrasonic probe calibration equipment - Google Patents
Ultrasonic probe calibration equipment Download PDFInfo
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- CN216675776U CN216675776U CN202123102149.5U CN202123102149U CN216675776U CN 216675776 U CN216675776 U CN 216675776U CN 202123102149 U CN202123102149 U CN 202123102149U CN 216675776 U CN216675776 U CN 216675776U
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Abstract
The utility model provides an ultrasonic probe calibration device, which comprises an optical locator and a probe positioning component positioned in a visual field of the optical locator, wherein the probe positioning component comprises a calibration probe, a calibration container and a calibration template; a first light-reflecting mark part is arranged on the calibration reference component; the calibration probe is used for establishing a calibration model position parameter, and a second light-reflecting marking part is arranged on the calibration probe; the ultrasonic probe is arranged above the calibration template, and a third light-reflecting mark part is arranged on an ultrasonic calibration adapter connected with the ultrasonic probe. The probe calibration equipment provided by the utility model is simple to operate, high in calibration efficiency and accuracy, strong in universality and suitable for calibration of most types of ultrasonic probes.
Description
Technical Field
The utility model relates to the field of medical equipment, in particular to ultrasonic probe calibration equipment which can realize three-dimensional calibration of an ultrasonic image by utilizing the visual capture function of an optical locator.
Background
Currently, an optical tracking method is usually adopted in the industry to acquire coordinate parameters of an ultrasonic probe in an optical coordinate system to calibrate the position of the ultrasonic probe, so as to obtain position information of each ultrasonic image, thereby facilitating three-dimensional image reconstruction.
In the traditional ultrasonic image calibration device, a calibration model is fixed in a calibration container, a calibration template adopts a three-dimensional plate-shaped structure, and an optical positioning reflective ball is fixed on the calibration container and on a wall parallel to the plane of the calibration template, so that more accurate calibration can be completed with less operation amount. Due to the limitation of the size of the calibration container, the installation form of the calibration model and the like, the calibration device and the calibration method can only be applied to the convex array probe and a few ultrasonic probes in the same scanning form with the convex array probe, have narrow application range, and can not be calibrated or calibrated inaccurately for other types of probes. Meanwhile, the traditional calibration equipment also has the problem that the calibration characteristic points are easy to be shielded in the operation process, so that the calibration efficiency and accuracy are influenced.
Disclosure of Invention
The utility model aims to provide the probe calibration equipment which is simple to operate, high in calibration efficiency and accuracy and strong in universality, and can be suitable for the calibration of most types of ultrasonic probes.
In order to achieve the purpose, the utility model adopts the following technical scheme: the utility model provides an ultrasonic probe calibration device, which comprises an optical locator and a probe positioning component positioned in a visual field of the optical locator, wherein the probe positioning component comprises a calibration probe, a calibration container and a calibration template; a first light-reflecting mark part is arranged on the calibration reference component; the calibration probe is used for establishing a calibration model position parameter, and a second light-reflecting marking part is arranged on the calibration probe; the ultrasonic probe is arranged above the calibration template, and a third light-reflecting mark part is arranged on an ultrasonic calibration adapter connected with the ultrasonic probe. The ultrasonic probe calibration equipment provided by the utility model is suitable for calibrating most ultrasonic probes, has higher universality, and can effectively reduce the shielding of calibration characteristic points during operation, so that the calibration efficiency and accuracy are higher.
Preferably, the calibration platform is detachably mounted on the inner wall of the bottom of the calibration container.
Preferably, the calibration device further comprises a support which is detachably mounted in the calibration container, and the calibration platform is detachably mounted on the top surface of the support.
Preferably, a plurality of mounting hole sites matched with the calibration platform are arranged on the top surface of the support. Aiming at the probes with different working area ranges, the calibration platform can select different mounting hole sites to be mounted, so that the depth position of the calibration template is adjusted, the application range of the ultrasonic probe calibration platform is wider, and the ultrasonic probe calibration platform can be suitable for ultrasonic probes with different sizes and types.
Preferably, a plurality of installation parts matched with the bracket are arranged on the bottom surface and one side surface of the calibration container, and the bracket is detachably installed on different installation parts to adjust the inclination angle of the bracket. Therefore, the utility model can adjust the installation position and the inclination angle of the bracket in the calibration container according to the size, the type and the like of the ultrasonic probe, thereby ensuring that the calibration template and the ultrasonic probe can be submerged in a medium such as water in the calibration container, and ensuring the calibration accuracy.
Preferably, the calibration template is a cubic hollow frame structure, a plurality of triangular holes with the same size are uniformly distributed on the side wall of the frame, and the vertexes of the triangular holes are used as calibration characteristic points. Through reasonable arrangement and design of the calibration characteristic points, the calibration efficiency and accuracy of the utility model are further improved. The adoption of the three-dimensional cavity type calibration template is helpful for calibrating the ultrasonic probes with different types and sizes.
Preferably, the optical position finder is connected with the position finder support so that the optical position finder is positioned above the probe positioning component. The setting mode greatly reduces the shielding of the operator and other parts to the marked characteristic points in the calibration process, thereby effectively improving the calibration efficiency and accuracy.
Preferably, the locator support is a wall-mounted multi-link pneumatic spring support or a tripod or a ceiling suspension support. The flexible adjustment of the position of the optical position finder is facilitated.
Preferably, the calibration container is a transparent organic glass three-dimensional box-shaped structure, and the bottom of the calibration container comprises a cavity structure. The method is beneficial to reducing the generation of interference images and improving the calibration efficiency and accuracy.
Preferably, the first reflective marker portion, the second reflective marker portion and the third reflective marker portion each include a plurality of reflective marker balls. The form of the reflective marker ball is adopted to facilitate the rapid capture of the reflective marker ball by the optical locator.
The utility model has the following beneficial effects: the ultrasonic probe calibration equipment effectively avoids the limitation of the size of the calibration container, the installation form of the calibration model and the like on the type, the size and the like of the ultrasonic probe, has higher universality, can be suitable for the calibration of most ultrasonic probes, and has higher calibration efficiency and accuracy.
Drawings
FIG. 1 is a schematic diagram of an overall structure of an ultrasonic probe calibration apparatus according to some embodiments of the present invention;
FIG. 2 is a cross-sectional view of a holder, ultrasound probe, etc. in accordance with certain embodiments of the present invention;
FIGS. 3 and 4 are schematic views of the mounting and mating of the bracket, calibration platform, etc. in some embodiments of the utility model;
fig. 5 is a schematic structural diagram of an ultrasound probe calibration apparatus according to another embodiment of the present invention.
FIG. 6 is a schematic diagram of a calibration template in accordance with some embodiments of the present invention.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
It should be understood that the structures, ratios, sizes, and the like shown in the drawings are only used for matching the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions under which the present invention can be implemented, so that the present invention has no technical significance. In addition, the terms "one side", "the other side", "front", "back", "upper", "lower", "left", "right", "middle", "top" and "bottom" used in the present invention are used for clarity of description only, and are not used to limit the scope of the present invention, and the relative relationship changes or adjustments may be made without substantial technical changes. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise. In the present invention, unless otherwise specifically stated or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the application can be understood by those of ordinary skill in the art as appropriate.
As shown in fig. 1 and fig. 2, the present embodiment provides an ultrasound probe calibration apparatus, which mainly includes an optical locator 6 and a probe positioning assembly located in a field of view of the optical locator 6, where the probe positioning assembly includes a calibration probe 8, a calibration container 1, and a calibration template 11. Wherein, a bracket 2 is detachably arranged in the calibration container 1. The calibration container 1 is of a cuboid or cube structure, and a cavity is formed inside the calibration container and used for injecting water. The specific structure of the support and the connection mode between the support and the calibration container can be different according to different use scenes, different types of ultrasonic probes and the like. The calibration template 11 and the calibration reference component 4 are fixedly connected on the calibration platform 3, the position between the calibration template 11 and the calibration reference component 4 is ensured to be fixed and unchanged, and then the calibration template and the calibration reference component are arranged on the bracket 2 together; the calibration reference component 4 is provided with a first reflective marker part 13; in actual use, the first reflective marking part 13 can extend out of the calibration container 1 through the calibration reference component 4, so that the first reflective marking part is closer to the optical position finder 6, the optical position finder 6 can conveniently observe, and the measurement result is more accurate. This embodiment can adapt to the ultrasonic probe of isostructure or application occasion, if the longer rectum probe of handle, or handle axis and working face are parallel or other intracavity probes of coincidence etc. can use the support and adjustable support inclination to guarantee that model and probe working face all can get into the aquatic, handle and handle cable surface of emerging. Therefore, the adaptability of the whole system to different working conditions is improved, and the universality of the utility model is stronger.
The calibration probe 8 is used for establishing calibration model position parameters, and the calibration probe 8 is provided with a second reflective marker part 14, wherein the second reflective marker part 14 is arranged on the upper part of the probe, so that the second reflective marker part is closer to the optical positioning instrument 6, the optical positioning instrument 6 is convenient to observe, and the measurement result is more accurate. At first, the calibration probe 8 can establish its position parameters in the calibration system, and the second reflective marker 14 arranged on the top of the calibration probe 8 can be four reflective marker balls, which is convenient for the optical position finder 6 to accurately and quickly capture the reflective marker balls. The calibration probe 8 is contacted with a fixed position of a calibration point on the calibration template 11, and a related position parameter using the calibration reference component 4 as a positioning reference can be established for the calibration template 11 in the whole calibration system through professional software.
When calibration is performed, the ultrasonic probe 10 is disposed above the calibration template 11, so that the scanning plane of the ultrasonic probe 10 is parallel to the plane of the bottom of the calibration template 11, and the water surface in the calibration container 1 is made to pass through the calibration template 11 and the working area 19 of the ultrasonic probe 10 (see the dashed rectangle frame part in fig. 2). The ultrasonic calibration adapter 9 connected with the ultrasonic probe 10 is provided with a third reflective marker part 15. One side of adapter 9 is markd to supersound is used for connecting ultrasonic probe 10, and third reflective marker portion 15 is connected to the opposite side, and third reflective marker portion 15 can follow ultrasonic probe 10 and remove and feed back its motion process, and then catches through optical position finder 6 and confirm its coordinate position, and third reflective marker portion 15 also can be extended to the nearer one side of optical position finder 6 simultaneously, guarantees the accurate degree of observation. Meanwhile, the ultrasonic calibration adapter 9 can adopt different structures according to the actual shape of the handle.
The inclination angle of the bracket 2 of the utility model can be adjusted, in some embodiments, the bracket 2 adopts a plate-shaped structure, and the bottom surface and one side surface of the calibration container 1 are both provided with mounting parts 12 matched with the bracket 2, so that the bracket 2 can be detachably mounted in the calibration container 1. Wherein the mounting portion 12 can be provided in a plurality, and the inclination angle of the bracket 2 can be adjusted by mounting the bracket 2 on different mounting portions 12. For example, the mounting portion 12 may have a slot structure, and the bracket 2 is provided with a protruding ridge structure matching with the slot structure. The bracket 2 can be adjusted to different inclination angles according to different positions of the mounting part 12 so as to adapt to different probes and application scenes. In other embodiments, the support 2 may be a tilt support which is adjustable, and is fixedly installed in the calibration container 1, and the tilt angle of the tilt support is directly adjusted according to the need, and the structure of the tilt support may be a common tilt support.
As shown in fig. 3 and 4, as an improvement to the above embodiment, the calibration template 11 and the calibration reference component 4 are fixedly connected through the calibration platform 3, so as to ensure that the position between the calibration reference component 4 and the calibration template 11 is fixed. Meanwhile, a plurality of mounting hole positions 16 matched with the calibration platform 3 are arranged on the support 2. Different mounting holes 16 can determine the position of the calibration platform 3 in the container, so as to meet different shapes of handles.
Fig. 5 shows a schematic structural view of another embodiment of the present invention, which is preferably applicable to a convex array probe and the like. In this embodiment, no support structure is used, and the calibration platform 3 is detachably mounted on the bottom inner wall of the calibration container 1. Wherein, be provided with on the demarcation container bottom inner wall with 3 bottoms of demarcation platform buckle matched with installation position, like the draw-in groove to realize the connection of dismantling of demarcation platform. The mounting position arranged on the inner wall of the bottom of the calibration container is preferably the same as the mounting position on the top surface of the bracket, so that the structure has stronger universality.
As shown in fig. 6, in the calibration template 11 provided in the above embodiment, the calibration template 11 is a cubic hollow frame structure, a plurality of triangular holes 17 with the same size are uniformly distributed on the side wall of the frame, and the vertexes of the triangular holes 17 are used as calibration feature points. Optical position finder 6 is connected with position finder support 5, and position finder support 5 has manual regulation portion 7, and position finder support 5 is wall-hanging many connecting rods pneumatic spring support or tripod or ceiling suspension support, and the manual regulation portion 7 through position finder support 5 is adjustable to make optical position finder 6 be located probe locating component's top for probe locating component especially each reflection of light mark position is in optical position finder 6's field of view.
In the above embodiment, the calibration container 1 is a transparent organic glass three-dimensional box-like structure, and the bottom thereof includes a cavity structure. The bottom of the calibration container 1 is provided with a cavity structure 18, and the bottom plate of the cavity structure is not in contact with the table top, so that interference images in the calibration process can be reduced, and the image calibration is facilitated.
In the above embodiments, the first reflective marker portion 13, the second reflective marker portion 14, and the third reflective marker portion 15 each include a plurality of reflective marker balls. If every reflective marker portion all can set up to including four reflective marker balls, wherein these four reflective marker balls are located same working plane, evenly distributed makes things convenient for optical positioning appearance to catch it.
Therefore, the utility model has wider application range and stronger universality, can be suitable for convex array probes and similar probes when the bracket is not used, and can calibrate probes such as multi-dimensional probes, linear array probes and the like when the bracket is used. Because the support and the calibration platform are of detachable structures, whether the support is used or not and the inclination angle of the support can be conveniently selected according to the type of the probe, calibration equipment does not need to be prepared for different probes, and cost can be greatly saved. In addition, the calibration efficiency and the calibration accuracy of the utility model are greatly improved compared with the prior art.
The embodiments of the present invention have been described in detail, but the description is only for the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made within the scope of the present invention should be covered by the present invention.
Claims (10)
1. An ultrasonic probe calibration device comprises an optical locator and a probe positioning component positioned in a visual field of the optical locator, wherein the probe positioning component comprises a calibration probe, a calibration container and a calibration template,
the calibration template and the calibration reference component are fixedly connected to the calibration platform and are arranged in the calibration container together, so that the relative positions of the calibration template and the calibration reference component are fixed; a first light-reflecting mark part is arranged on the calibration reference component;
the calibration probe is used for establishing a calibration model position parameter, and a second light-reflecting marking part is arranged on the calibration probe;
the ultrasonic probe is arranged above the calibration template, and a third light-reflecting marking part is arranged on an ultrasonic calibration adapter connected with the ultrasonic probe.
2. The ultrasonic probe calibration device according to claim 1, wherein the calibration platform is detachably mounted on the inner wall of the bottom of the calibration container.
3. The ultrasonic probe calibration device of claim 1, further comprising a support detachably mounted in the calibration container, wherein the calibration platform is detachably mounted on the top surface of the support.
4. The ultrasonic probe calibration device according to claim 3, wherein a plurality of mounting holes matched with the calibration platform are arranged on the top surface of the support.
5. The ultrasonic probe calibration apparatus according to claim 3, wherein a plurality of mounting portions matched with the bracket are provided on the bottom surface and one side surface of the calibration container, and the bracket is detachably mounted on different mounting portions to adjust the inclination angle of the bracket.
6. The ultrasonic probe calibration device according to claim 1, wherein the calibration template is a cubic hollow frame structure, a plurality of triangular holes with the same size are uniformly distributed on the side wall of the frame, and the vertexes of the triangular holes are used as calibration feature points.
7. The ultrasonic probe calibration device according to claim 1, wherein the optical position finder is connected to the position finder support such that the optical position finder is located above the probe positioning assembly.
8. The ultrasonic probe calibration device according to claim 7, wherein the locator support is a wall-mounted multi-link pneumatic spring support or a tripod or a ceiling suspension support.
9. The ultrasonic probe calibration device according to any one of claims 1 to 8, wherein the calibration container is a transparent organic glass three-dimensional box-like structure, and the bottom of the calibration container comprises a cavity structure.
10. The ultrasonic probe calibration device according to any one of claims 1 to 8, wherein the first reflective marker portion, the second reflective marker portion, and the third reflective marker portion each comprise a plurality of reflective marker balls.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123102149.5U CN216675776U (en) | 2021-12-06 | 2021-12-06 | Ultrasonic probe calibration equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123102149.5U CN216675776U (en) | 2021-12-06 | 2021-12-06 | Ultrasonic probe calibration equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216675776U true CN216675776U (en) | 2022-06-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123102149.5U Active CN216675776U (en) | 2021-12-06 | 2021-12-06 | Ultrasonic probe calibration equipment |
Country Status (1)
| Country | Link |
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| CN (1) | CN216675776U (en) |
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2021
- 2021-12-06 CN CN202123102149.5U patent/CN216675776U/en active Active
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