CN117752431A - Ultrasonic probe calibration tool - Google Patents
Ultrasonic probe calibration tool Download PDFInfo
- Publication number
- CN117752431A CN117752431A CN202311817153.0A CN202311817153A CN117752431A CN 117752431 A CN117752431 A CN 117752431A CN 202311817153 A CN202311817153 A CN 202311817153A CN 117752431 A CN117752431 A CN 117752431A
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- calibration
- shaft
- ultrasonic probe
- calibration shaft
- sheath tube
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- 239000000523 sample Substances 0.000 title claims abstract description 40
- 239000002184 metal Substances 0.000 claims abstract description 18
- 230000000149 penetrating effect Effects 0.000 claims abstract description 6
- 230000035515 penetration Effects 0.000 claims description 2
- 238000007373 indentation Methods 0.000 claims 2
- 238000006073 displacement reaction Methods 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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Abstract
The invention relates to an ultrasonic probe calibration tool, which comprises a sheath tube (10), a first calibration shaft (20), a metal wire (30), a second calibration shaft (40), an angle sensor (50) and a connecting piece (60); the sheath tube (10) is rotatably arranged on the connecting piece (60) and is connected with the angle sensor (50), the first calibration shaft (20) and the second calibration shaft (40) can be respectively arranged on the sheath tube (10) in a penetrating mode, a metal wire (30) is arranged at one end of the first calibration shaft (20), and a semi-cylindrical notch (40) is formed at one end of the second calibration shaft (40). Compared with the prior art, the invention provides the ultrasonic probe calibration tool which can acquire any number of mark point information according to any rule and according to the requirement.
Description
Technical Field
The invention relates to the technical field of medical equipment, in particular to an ultrasonic probe calibrating tool.
Background
In clinical use, the ultrasonic probe image is matched with the ultrasonic probe puncture frame, so that the puncture needle can be guided into a patient for interventional treatment. In recent years, with the advancement of ultrasonic instrument performance and the improvement of puncture needle tools and the accumulation of physician experience, ultrasound guided puncture technology has become a very important diagnostic technology. The ultrasonic probe calibration is to ascertain the conversion relation of certain specific control point coordinates in the ultrasonic probe coordinate system to the pixel coordinate system so as to conduct the research of the subsequent calibration algorithm.
The number of marking points obtained by the existing ultrasonic probe calibration tool is limited, and the distribution rule of the marking points is limited.
Disclosure of Invention
The invention aims to provide an ultrasonic probe calibration tool, which acquires mark point information according to requirements.
The aim of the invention can be achieved by the following technical scheme: an ultrasonic probe calibration tool comprises a sheath tube, a first calibration shaft, a metal wire, a second calibration shaft, an angle sensor and a connecting piece;
the sheath tube is rotatably arranged on the connecting piece and connected with the angle sensor, the first calibration shaft and the second calibration shaft can be respectively arranged on the sheath tube in a penetrating mode, a metal wire is arranged at one end of the first calibration shaft, and a semi-cylindrical notch is formed at one end of the second calibration shaft.
Preferably, the first calibration shaft is provided with a first scale line along the axial direction, and the first calibration shaft can move along the axial direction of the sheath.
Preferably, the axis of the first calibration shaft is perpendicular to the wire axis.
Preferably, the second calibration shaft is provided with a second scale mark along the axial direction, and the second calibration shaft can move along the axial direction of the sheath tube.
Preferably, the axis of the second calibration shaft is perpendicular to the axis of the semi-cylindrical notch.
Preferably, the second calibration shaft is provided with a wedge-shaped groove at one end provided with the semi-cylindrical notch.
Preferably, the axes of the first calibration shaft and the second calibration shaft are positioned on the middle plane of the ultrasonic probe puncture frame connected with the connecting piece.
Preferably, the first calibration shaft and the second calibration shaft are cylindrical, the inner cavity of the sheath tube is cylindrical, and the diameter of the inner cavity is matched with the diameters of the first calibration shaft and the second calibration shaft.
Preferably, the first calibration shaft and the second calibration shaft are both made of nonmetallic materials with good rigidity strength.
Preferably, a first metal sheet is arranged in the middle of the first calibration shaft along the axis, and a second metal sheet is arranged in the middle of the second calibration shaft along the axis.
Preferably, the angle sensor comprises an outer shell and an inner core;
the shell is fixed on the connecting piece through the square through hole, and the inner core is connected with the sheath tube through the cross-shaped groove and the cross-shaped convex block.
Preferably, the angle sensor is connected with an ultrasonic imaging system.
Compared with the prior art, the invention has the following beneficial effects:
1. the ultrasonic probe calibrating tool is simple in structure and ingenious in design, realizes fixed-axis rotation of the ultrasonic probe puncture frame through the sheath tube and the angle sensor, can accurately measure the rotation angle, longitudinally stretches and contracts the calibrating shaft in the inner cavity of the sheath tube, measures displacement through scales on the shaft, and is used for calibrating the ultrasonic probe;
2. the invention provides an ultrasonic probe calibration tool which can acquire information of any number of mark points according to any rule and any requirement;
3. the sheath tube has unlimited rotation angle and telescopic displacement of the calibration shaft, visual data reading, convenient adjustment and wide adjustable range;
4. the invention can collect initial data for calibration, and can detect the calibration algorithm after the calibration algorithm is completed.
Drawings
FIG. 1 is a schematic diagram of the ultrasonic probe calibration tool of the present invention;
FIG. 2 is a partially exploded schematic illustration of an ultrasonic probe calibration tool of the present invention;
FIG. 3 is a schematic view of a first calibration shaft configuration of the present invention;
FIG. 4 is a schematic view of a second calibration shaft configuration of the present invention;
FIG. 5 is a schematic view of the angle sensor structure of the present invention;
in the figure: 10-sheath tube, 11-cross-shaped lug, 20-first calibration shaft, 21-first scale mark, 22-first metal sheet, 23-circular through hole, 30-metal wire, 40-second calibration shaft, 41-second scale mark, 42-second metal sheet, 43-semi-cylindrical notch, 44-wedge groove, 50-angle sensor, 51-shell, 52-inner core, 53-cross-shaped groove, 60-connector, 61-square through hole, 70-ultrasonic probe puncture frame.
Detailed Description
The invention will now be described in detail with reference to the drawings and specific examples. The present embodiment is implemented on the premise of the technical scheme of the present invention, and a detailed implementation manner and a specific operation process are given, but the protection scope of the present invention is not limited to the following examples.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
Some embodiments of the present invention are described in detail below with reference to the accompanying drawings. The embodiments described below and features of the embodiments may be combined with each other without conflict.
Example 1
An ultrasonic probe calibration tool is characterized by comprising a sheath tube 10, a first calibration shaft 20, a metal wire 30, a second calibration shaft 40, an angle sensor 50 and a connecting piece 60.
Specifically, the sheath 10 is connected to the angle sensor 50 and rotatably disposed on the connector 60, the first calibration shaft 20 and the second calibration shaft 40 can be respectively disposed on the sheath 10 in a penetrating manner, when the first calibration shaft 20 is removed from the sheath 10, the second calibration shaft 40 can be disposed on the sheath 10 in a penetrating manner, when the second calibration shaft 40 is removed from the sheath 10, the first calibration shaft 20 can be disposed on the sheath 10 in a penetrating manner, one end of the first calibration shaft 20 is provided with the wire 30, and one end of the second calibration shaft 40 is provided with the semi-cylindrical notch 40.
Example 2
As shown in fig. 1 to 5, an ultrasonic probe calibration tool of the present embodiment includes a sheath 10, a first calibration shaft 20, a wire 30, a second calibration shaft 40, an angle sensor 50, and a connector 60.
In this embodiment, the outer casing 51 of the angle sensor is fixed on the connecting piece 60 through the square through hole 61, the inner core 52 is fixed on the sheath 10 through the cross-shaped groove 53 and the cross-shaped protrusion 11, so as to realize the fixed-axis rotation of the sheath 10 relative to the ultrasonic probe puncture frame 70, the rotation angle can be accurately measured by the angle sensor 50, and the rotation axis passes through the cross-shaped center point.
In this embodiment, the first calibration shaft 20 and the second calibration shaft 40 extend and retract longitudinally along the sheath 10, the displacement of the axis of the wire 30 relative to the sheath rotation axis is measured by the first scale line 21, and the displacement of the central axis of the semi-cylindrical notch 43 relative to the sheath rotation axis is measured by the second scale line 41.
In this embodiment, the wire 30 is in a perpendicular relationship with the axis of the first calibration shaft 20, and the wire moves in a perpendicular direction.
In this embodiment, by adjusting the rotation angle of the sheath 10 and the telescopic displacement of the first calibration shaft 20 and the second calibration shaft 40, the axis of the wire 30 and the central axis of the semi-cylindrical notch 43 are respectively used as the mark points, the positions of a group of points are obtained according to a certain rule, and four coordinate values corresponding to the positions are obtained, including coordinates (θ, ρ) in a physical coordinate system, and two coordinates (u, v) of rows and columns of pixels in an imaging coordinate system, and the conversion relationship between the two coordinate systems is obtained by function fitting, so as to complete the calibration of the ultrasonic probe.
Specifically, the ultrasonic probe penetration frame 70 is mounted on the ultrasonic probe, the rotation angle θ of the sheath 10 with respect to the connector 60 can be obtained by the angle sensor 50, and the distance ρ by which the first and second calibration shafts 20 and 40 longitudinally move with respect to the sheath 10 can be read by the scale on the calibration shaft. And then the corresponding coordinates (u, v) in the image are acquired by means of image processing.
The first and second calibration axes 20, 40 are interchangeable for adapting to calibration templates of different features.
Example 3
The utility model provides an ultrasonic probe calibration instrument, includes sheath 10, first calibration axle 20, wire 30, second calibration axle 40, angle sensor 50 and connecting piece 60, first calibration axle 20 the second calibration axle 40 is followed sheath 10 is done longitudinal movement, first calibration axle 20 through the circular through-hole 23 of front end with wire 30 is connected, angle sensor 50 through cross recess 53 with sheath 10 is connected, connecting piece 60 can imbed angle sensor 50 for connect ultrasonic probe puncture frame 70.
Further, the inner cavity of the sheath 10 is cylindrical, and the diameter of the inner cavity is matched with the diameters of the first calibration shaft 20 and the second calibration shaft 40.
Further, the first calibration shaft 20 is cylindrical, one side is provided with a first scale line 21, the middle is provided with a first metal sheet 22, and the front end is hemispherical.
Further, a circular through hole 23 is formed at the hemispherical front end and used for clamping the metal wire 30, and the inner diameter of the circular through hole 23 is matched with the diameter of the metal wire 30.
Further, the wire 30 is in a perpendicular relationship to the axis of the first calibration shaft 20.
Further, the second calibration shaft 40 is cylindrical, one side is provided with a second scale line 41, the middle is provided with a second metal sheet 42, and the front end is provided with a semi-cylindrical notch 43 and a wedge-shaped groove 44.
Further, the axes of the first calibration shaft 20 and the second calibration shaft 20 are located on the middle plane of the ultrasonic probe puncture frame 70 connected with the connecting piece 60.
Further, the angle sensor 50 includes a housing 51 and an inner core 52, the inner core 52 is provided with a resistance wire, the inner core 52 is matched with the housing 51, and the resistance value is changed to measure the rotation angle.
Further, the inner core 52 is provided with a cross-shaped groove 53, the outer side of the sheath 10 is provided with a cross-shaped protruding block 11, the groove corresponds to the protruding block, and the two are symmetrical in center.
Further, the connection member 60 is provided with a square through hole 61, and the square through hole 61 is adapted to the size of the angle sensor 50.
The connecting piece can be lengthened or shortened according to actual application conditions, or the positions of the square through holes can be adjusted, and the length of the standard shaft can be adjusted.
The previous description of the embodiments is provided to facilitate a person of ordinary skill in the art in order to make and use the present invention. It will be apparent to those skilled in the art that various modifications can be readily made to these embodiments and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above-described embodiments, and those skilled in the art, based on the present disclosure, should make improvements and modifications without departing from the scope of the present invention.
Claims (10)
1. An ultrasonic probe calibration tool is characterized by comprising a sheath tube (10), a first calibration shaft (20), a metal wire (30), a second calibration shaft (40), an angle sensor (50) and a connecting piece (60);
the sheath tube (10) is rotatably arranged on the connecting piece (60) and is connected with the angle sensor (50), the first calibration shaft (20) and the second calibration shaft (40) can be respectively arranged on the sheath tube (10) in a penetrating mode, a metal wire (30) is arranged at one end of the first calibration shaft (20), and a semi-cylindrical notch (40) is formed at one end of the second calibration shaft (40).
2. The ultrasonic probe calibration tool according to claim 1, wherein the first calibration shaft (20) is provided with a first calibration line (21) along the axial direction, and the first calibration shaft (20) is movable along the axial direction of the sheath tube (10).
3. The ultrasonic probe calibration tool of claim 1, wherein the axis of the first calibration shaft (20) is perpendicular to the wire (30) axis.
4. The ultrasonic probe calibration tool according to claim 1, wherein the second calibration shaft (40) is provided with second graduation marks (41) along the axial direction, and the second calibration shaft (40) is movable along the axial direction of the sheath tube (10).
5. The ultrasonic probe calibration tool of claim 1, wherein the axis of the second calibration shaft (40) is perpendicular to the axis of the semi-cylindrical indentation.
6. An ultrasonic probe calibration tool according to claim 1, wherein the second calibration shaft (40) is provided with a wedge-shaped groove at the end provided with the semi-cylindrical indentation.
7. The ultrasonic probe calibration tool according to claim 1, wherein the axes of the first calibration shaft (20) and the second calibration shaft (40) are located on a midplane of an ultrasonic probe penetration frame (70) to which the connector (60) is connected.
8. The ultrasonic probe calibration tool according to claim 1, wherein the first calibration shaft (20) and the second calibration shaft (40) are cylindrical, the inner cavity of the sheath (10) is cylindrical, and the diameter of the inner cavity is matched with the diameters of the first calibration shaft (20) and the second calibration shaft (40).
9. The ultrasonic probe calibration tool according to claim 1, wherein a first metal sheet (22) is provided along the axis in the middle of the first calibration shaft (20), and a second metal sheet (42) is provided along the axis in the middle of the second calibration shaft (40).
10. The ultrasonic probe calibration tool of claim 1, wherein the angle sensor (50) comprises an outer shell (51) and an inner core (52);
the shell (51) is fixed on the connecting piece (6) through a square through hole (61), and the inner core (52) is connected with the sheath tube (10) through a cross-shaped groove (53) and a cross-shaped lug (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311817153.0A CN117752431A (en) | 2023-12-27 | 2023-12-27 | Ultrasonic probe calibration tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311817153.0A CN117752431A (en) | 2023-12-27 | 2023-12-27 | Ultrasonic probe calibration tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117752431A true CN117752431A (en) | 2024-03-26 |
Family
ID=90310418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311817153.0A Pending CN117752431A (en) | 2023-12-27 | 2023-12-27 | Ultrasonic probe calibration tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117752431A (en) |
-
2023
- 2023-12-27 CN CN202311817153.0A patent/CN117752431A/en active Pending
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