Ultrasonic probe calibration device

Abstract

The invention relates to an ultrasonic probe calibration device which comprises a main calibration plate (1), an auxiliary calibration plate (2), a fixing plate (3) and a calibration probe (4). The main calibration plate (1) and the auxiliary calibration plate (2) are oppositely arranged on the fixed plate (3) to form a track for the movement of an ultrasonic probe, the main calibration plate (1) is provided with a slot (101), and the plurality of calibration probes (4) are detachably mounted on the slot (101). Compared with the prior art, the ultrasonic probe calibration device is fast to operate, high in calibration efficiency, proper in size, easy to install and good in universality, and can be applied to calibration of most types of ultrasonic probes.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and more particularly to an ultrasonic probe calibration device. Background Art

[0002] Medical ultrasonic imaging, as an inexpensive and real-time imaging examination method, has been widely used in medicine. It has become an important tool in the surgical navigation system, which can significantly reduce the operation difficulty of the surgery and minimize the surgical trauma. In the existing ultrasonic-guided surgical navigation system, due to the variety of ultrasonic probes and the lack of a unified appearance specification, the positions of the installed optical reference frames or magnetic positioning devices are inconsistent. Therefore, it is necessary to calibrate the ultrasonic probe after installation, that is, to establish a definite corresponding relationship between the positions of the installed optical reference frames or magnetic positioning devices and the ultrasonic imaging positions.

[0003] The existing ultrasonic probe calibration devices mainly use an open container filled with pure water, which has a large volume and is inconvenient to operate. Summary of the Invention

[0004] The purpose of the present invention is to provide an ultrasonic probe calibration device with fast operation and high calibration efficiency.

[0005] The purpose of the present invention can be achieved through the following technical solutions: An ultrasonic probe calibration device includes a main calibration plate, a secondary calibration plate, a fixing plate, and calibration probes;

[0006] The main calibration plate and the secondary calibration plate are oppositely arranged on the fixing plate to form a track for the movement of the ultrasonic probe. The main calibration plate is provided with a slot, and a plurality of calibration probes are detachably installed on the slot.

[0007] Preferably, the main calibration plate and the secondary calibration plate are detachably installed above the fixing plate, and the interval size is adjustable.

[0008] Preferably, the main calibration plate includes a main vertical plate and a main track plate, and the secondary calibration plate includes a secondary vertical plate and a secondary track plate;

[0009] The main vertical plate and the secondary vertical plate are vertically and parallelly installed on the fixing plate. The main track plate is arranged on the side of the main vertical plate facing the secondary vertical plate, and the secondary track plate is arranged on the side of the secondary vertical plate facing the main vertical plate.

[0010] Further preferably, the main track plate and the secondary track plate are in an inverted U-shaped structure, with the same height and a height lower than that of the main vertical plate and the secondary vertical plate.

[0011] Even more preferably, the main track plate and the secondary track plate have the same size, the main vertical plate and the secondary vertical plate have the same size, and the size of the main track plate and the secondary track plate is smaller than that of the main vertical plate and the secondary vertical plate.

[0012] In the present invention, the main track plate and the auxiliary track plate form a track for the movement of the ultrasonic probe, and the main vertical plate and the auxiliary vertical plate can limit the ultrasonic probe, improving the accuracy of calibration.

[0013] Further preferably, a plurality of slots are horizontally opened on the main vertical plate and are arranged at equal intervals in the vertical direction.

[0014] Further preferably, the calibration probe is perpendicular to the main vertical plate.

[0015] Preferably, the calibration probe includes a probe and a fixing component connected to the probe. The probe is arranged between the main calibration plate and the auxiliary calibration plate and is fixed on the slot through the fixing component.

[0016] Further preferably, the fixing component includes a bolt, a nut and a barrier ring;

[0017] The barrier ring is arranged between the bolt and the probe. A nut is detachably installed on the bolt, and the nut and the barrier ring are respectively located on both sides of the slot.

[0018] Even more preferably, the probe is perpendicular to the barrier ring.

[0019] Even more preferably, the diameter of the barrier ring is larger than the vertical dimension of the slot and smaller than the horizontal dimension of the slot.

[0020] Even more preferably, the diameter of the bolt does not exceed the vertical dimension of the slot, and the outer diameter of the nut is not less than the vertical dimension of the slot.

[0021] In the present invention, the bolt passes through the slot and is connected to the nut, and the calibration probe is fixed by the nut and the barrier ring.

[0022] Further preferably, the nut is a knurled nut. Through the knurling design, it is convenient to adjust the position of the calibration probe.

[0023] Preferably, the ultrasonic probe calibration device is placed in a water tank.

[0024] A method for using the above ultrasonic probe calibration device includes the following steps:

[0025] (1) Fix the ultrasonic probe calibration device in the water tank so that the water in the water tank submerges the calibration device;

[0026] (2) Move the ultrasonic probe along the track formed by the main calibration plate and the auxiliary calibration plate, and obtain the image of the tip of the calibration probe through the ultrasonic image.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] 1. The present invention provides an ultrasonic probe calibration device with fast operation and high calibration efficiency;

[0029] 2. The ultrasonic probe of the present invention acquires the arrangement rules of calibration probes in different directions along the track, obtains the landmark points at different angles, obtains more landmark points at one time, is quick to operate, and greatly improves the calibration efficiency.

[0030] 3. The ultrasonic probe calibration device of the present invention has an appropriate volume, a simple structure, and is convenient to install.

[0031] 4. The ultrasonic probe calibration device of the present invention can, according to needs, obtain the information of different numbers of landmark points according to different rules, and quickly complete the calibration of the ultrasonic probe.

[0032] 5. The current main ultrasonic probe calibration method is completed by using an ultrasonic probe to scan a customized calibration device with the aid of an optical tracking system or an electromagnetic positioning system. The ultrasonic probe calibration device of the present invention has good versatility and can be applied to the calibration of most types of ultrasonic probes. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 is a schematic structural diagram of the ultrasonic probe calibration device of the present invention;

[0034] Figure 2 is a schematic structural diagram of the main calibration plate of the present invention;

[0035] Figure 3 is a schematic structural diagram of the auxiliary calibration plate of the present invention;

[0036] Figure 4 is a schematic structural diagram of the probe, bolt and barrier ring of the present invention;

[0037] Figure 5 is a schematic structural diagram of the nut;

[0038] In the figure: 1 - main calibration plate, 101 - slotted, 11 - main vertical plate, 12 - main track plate, 2 - auxiliary calibration plate, 21 - auxiliary vertical plate, 22 - auxiliary track plate, 3 - fixing plate, 4 - calibration probe, 41 - probe, 42 - bolt, 43 - nut, 44 - barrier ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0039] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. This embodiment is implemented on the premise of the technical solution of the present invention, and gives the detailed implementation manner and specific operation process, but the protection scope of the present invention is not limited to the following embodiments.

[0040] It should be noted that: similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0041] The following will describe in detail some embodiments of the present invention with reference to the accompanying drawings. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0042] Embodiment 1

[0043] An ultrasonic probe calibration device includes a main calibration plate 1, a secondary calibration plate 2, a fixing plate 3, and a calibration probe 4.

[0044] Among them, the main calibration plate 1 and the secondary calibration plate 2 are oppositely arranged on the fixing plate 3 to form a track for the movement of the ultrasonic probe. The main calibration plate 1 is provided with a slot 101, and a plurality of calibration probes 4 are detachably installed on the slot 101.

[0045] When using the calibration device of this embodiment, the ultrasonic probe can move along the track formed by the main calibration plate 1 and the secondary calibration plate 2, collect the arrangement rules of the calibration probes 4, and complete the calibration of the ultrasonic probe.

[0046] Embodiment 2

[0047] An ultrasonic probe calibration device, the main calibration plate 1 includes a main vertical plate 11 and a main track plate 12, the main vertical plate 11 is provided with a slot 101, the secondary calibration plate 2 includes a secondary vertical plate 21 and a secondary track plate 22, and the calibration probe 4 includes a probe 41, a bolt 42, a nut 43, and a barrier ring 44.

[0048] The main vertical plate 11 is provided with a certain number of slots 101 of the same size adapted to the calibration probes. The side of the main vertical plate 11 facing the secondary vertical plate 21 is provided with an inverted U-shaped main track plate 12. The calibration probe 4 is detachably installed on the slot 101, and the calibration probes 4 are arranged regularly on the slot 101.

[0049] The secondary vertical plate 21 has the same size as the main vertical plate 11, and the side facing the main vertical plate 11 is provided with an inverted U-shaped secondary track plate 22.

[0050] The probe 41 is vertically connected to the barrier ring 44. The barrier ring 44 is connected to the bolt 42, and a knurled nut 43 is detachably installed on the bolt 42. The diameter of the barrier ring 44 is greater than the vertical dimension of the slot 101. The bolt 42 passes through the slot 101 and is connected to the knurled nut 43. The knurled nut 43 and the barrier ring 44 are respectively located on both sides of the slot 101, and the probe 41 is fixed on the slot 101 through their cooperation.

[0051] In this embodiment, the main vertical plate 11 and the secondary vertical plate 21 are parallelly installed on the fixing plate 3. By adjusting the arrangement rules of the gaps of the calibration probes 4 in the slot 101, the ultrasonic probe collects the arrangement rules of the calibration probes in different directions along the track formed by the main track plate 12 and the secondary track plate 22, and completes the calibration of the ultrasonic probe.

[0052] Embodiment 3

[0053] An ultrasonic probe calibration device, as Figures 1 to 5 shown, includes a main calibration plate 1, a secondary calibration plate 2, a fixing plate 3, and a calibration probe 4. Among them, the main calibration plate 1 includes a main vertical plate 11 and a main track plate 12. A slot 101 is provided on the main vertical plate 11. The secondary calibration plate 2 includes a secondary vertical plate 21 and a secondary track plate 22. The calibration probe 4 includes a probe 41, a bolt 42, a nut 43, and a barrier ring 44.

[0054] In this embodiment, the distance between the edge of the main track plate 12 and the main vertical plate 11 is the same, and the main track plate 12 is perpendicular to the main vertical plate 11.

[0055] In this embodiment, the distance between the edge of the secondary track plate 22 and the secondary vertical plate 21 is the same, and the secondary track plate 22 is perpendicular to the secondary vertical plate 21.

[0056] In this embodiment, the main track plate 12 and the secondary track plate 22 are installed in parallel, and the interval size can be adjusted according to requirements.

[0057] In this embodiment, the probe 41 is perpendicular to the barrier ring 44.

[0058] In this embodiment, the bolt 42 passes through the slot 101 and is connected to the knurled nut 43.

[0059] In this embodiment, the main vertical plate 11 and the secondary vertical plate 21 are installed in parallel on the fixing plate 3. By adjusting the arrangement rule of the gaps of the calibration probe 4 in the slot 101, the ultrasonic probe collects the arrangement rules of the calibration probe 4 in different directions along the track formed by the main track plate 12 and the secondary track plate 22, and completes the calibration of the ultrasonic probe.

[0060] The above description of the embodiments is for the convenience of those of ordinary skill in the art to understand and use the invention. Those skilled in the art can obviously make various modifications to these embodiments easily and apply the general principles described herein to other embodiments without creative labor. Therefore, the present invention is not limited to the above embodiments, and the improvements and modifications made by those skilled in the art according to the disclosure of the present invention without departing from the scope of the present invention should be within the protection scope of the present invention.

Claims

1. An ultrasonic probe calibration device, characterized in that, It includes a main calibration plate (1), a secondary calibration plate (2), a fixing plate (3) and a calibration probe (4); The main calibration plate (1) and the secondary calibration plate (2) are oppositely arranged on the fixing plate (3) to form a track for the movement of the ultrasonic probe. A slot (101) is provided on the main calibration plate (1), and multiple calibration probes (4) are detachably installed on the slot (101).

2. The ultrasonic probe calibration device according to claim 1, wherein The main calibration plate (1) includes a main vertical plate (11) and a main track plate (12), and the secondary calibration plate (2) includes a secondary vertical plate (21) and a secondary track plate (22); The main vertical plate (11) and the secondary vertical plate (21) are vertically and parallelly installed on the fixing plate (3). The main track plate (12) is arranged on the side of the main vertical plate (11) facing the secondary vertical plate (21), and the secondary track plate (22) is arranged on the side of the secondary vertical plate (21) facing the main vertical plate (11).

3. The ultrasonic probe calibration device according to claim 2, wherein, The main track plate (12) and the secondary track plate (22) are in an inverted U-shaped structure, with the same height and the height lower than that of the main vertical plate (11) and the secondary vertical plate (21).

4. The ultrasonic probe calibration device according to claim 2, characterized in that, Multiple slots (101) are horizontally opened on the main vertical plate (11) and are arranged at equal intervals in the vertical direction.

5. The ultrasonic probe calibration device according to claim 1, wherein The calibration probe (4) includes a probe (41) and a fixing component connected to the probe (41). The probe (41) is arranged between the main calibration plate (1) and the secondary calibration plate (2) and is fixed on the slot (101) through the fixing component.

6. The ultrasonic probe calibration device according to claim 5, characterized in that, The fixing component includes a bolt (42), a nut (43) and a spacer ring (44); The spacer ring (44) is arranged between the bolt (42) and the probe (41). A nut (43) is detachably installed on the bolt (42), and the nut (43) and the spacer ring (44) are respectively located on both sides of the slot (101).

7. The ultrasonic probe calibration device according to claim 6, characterized in that The diameter of the spacer ring (44) is larger than the vertical dimension of the slot (101) and smaller than the horizontal dimension of the slot (101).

8. The ultrasonic probe calibration device according to claim 6, characterized in that, The diameter of the bolt (42) does not exceed the vertical dimension of the slot (101), and the outer diameter of the nut (43) is not less than the vertical dimension of the slot (101).

9. The ultrasonic probe calibration device according to claim 6, characterized in that The nut (43) is a knurled nut.

10. The ultrasonic probe calibration device according to claim 1, characterized in that, The ultrasonic probe calibration device is placed in a water tank.

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