Ultrasonic probe device for magnetic wave knife
Technical Field
The invention relates to the field of magnetic wave knives, in particular to an ultrasonic probe device for a magnetic wave knife.
Background
The magnetic wave knife is also called an ultrasonic focusing knife, can be matched with magnetic resonance real-time imaging, utilizes ultrasonic waves as energy sources, is scattered and emitted from the outside of a body to the inside of the body, and is focused in the middle of the emission and transmission process, a plurality of ultrasonic waves are focused on one point, and a high-energy treatment point is formed on the point through sound waves and heat energy conversion and is used for killing tumor cells. In recent years, the magnetic wave knife has shown good effect in clinical treatment of hysteromyoma, brain tumor, prostate tumor and the like. The magnetic wave knife generally works under the guidance of imaging equipment such as magnetic resonance, and through phased array control, images around pathological change tissues need to be acquired from the imaging equipment in real time, so that a doctor can conveniently perform treatment planning before an operation, and the treatment effect can be conveniently preliminarily evaluated after the operation. When a doctor determines that an ablation area is ready for ablation operation, the focal distance of the ultrasonic probe plays a key role in selectively ablating pathological tissues and determines the effective depth of a treatment focus.
In the prior art, the focus distances of the ultrasonic probes of the magnetic wave knife are fixed, the ultrasonic probes with different focus distances need to be replaced under different conditions, even the ultrasonic probes are replaced for multiple times in one operation, and magnetic resonance guidance is carried out for multiple times, so that the operation efficiency is seriously influenced, and the safety risk in the treatment process is increased.
Disclosure of Invention
The present invention is directed to overcoming the above-mentioned drawbacks of the prior art and providing an ultrasonic probe device for a magnetic wave knife.
The purpose of the invention can be realized by the following technical scheme:
the utility model provides an ultrasonic probe device for magnetic wave sword, its characterized in that includes probe bracket, probe connecting rod and a plurality of probe unit, the probe connecting rod is connected probe bracket's axial one end is equipped with the focus face on every probe unit and is used for forming the ultrasonic focusing point, and the ultrasonic focusing point degree of depth of at least one probe unit and other probe units is different, a plurality of probe units are installed on probe bracket, make its focus face distribute in probe bracket's circumference side.
Further, the radius of curvature of the focal planes of the plurality of probe units are different from each other.
Furthermore, mounting grooves are formed in the circumferential direction of the probe support, and the probe units are embedded into the mounting grooves to be fixed.
Further, the number of the probe units is at least two.
Further, the probe bracket and the probe connecting rod are connected through threads.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention integrates a plurality of probe units together, so that one device has a plurality of ultrasonic focusing depths, thereby realizing the repeated ablation of focuses in different areas under the guidance of one-time magnetic resonance, reducing the treatment time of patients and greatly improving the use efficiency.
2. The curvature radiuses of the focusing surfaces of the probe units are different from each other, so that the application range of the probe units is widened.
3. The installation structure of the probe unit and the probe bracket is simple, and the production and the manufacture are convenient; the probe unit and the probe bracket can also adopt a detachable structure, so that the probe unit and the probe bracket are convenient to replace.
4. The probe bracket and the probe connecting rod are in threaded connection, so that the probe bracket is convenient to disassemble and replace, and has good practical value.
Drawings
FIG. 1 is a schematic view of the present invention.
Fig. 2 is a schematic diagram of the explosive structure of the present invention.
Reference numerals: 1. the device comprises a probe bracket, 11, a mounting groove, 2, a probe connecting rod, 3, a probe unit, 31 and a focusing plane.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments. The present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.
As shown in fig. 1 and 2, the present embodiment provides an ultrasonic probe device for a magnetic wave blade, including a probe holder 1, a probe connecting rod 2, and a plurality of probe units 3. The main body of the probe bracket 1 is cylindrical, and a plurality of mounting grooves 11 are distributed on the circumferential side wall of the bracket. The number of the mounting grooves 11 corresponds to the number of the probe units 3, and is at least two, and preferably three in the present embodiment. The number of the probe units 3 is three, and the three probe units are respectively embedded into the three mounting grooves 11. A focusing surface 31 is provided on the outer side surface of each probe unit 3 for forming an ultrasonic focusing focus, and the focusing surface 31 is wound around the probe holder 1. Generally, the ultrasound focusing focal points of at least one probe unit 3 and other probe units 3 are different in depth, and in the present embodiment, it is preferable that the curvature radii of the three focusing planes 31 are different from each other, so that the depth distances of the corresponding ultrasound focusing points are different from each other, and thus, the method can be applied to three different application scenarios. One end of the probe connecting rod 2 is fixedly connected with the probe bracket 1 through threads, and the external probe control mechanism can drive the probe bracket 1 to rotate and move through the probe connecting rod 2. The whole manufacturing material of the probe device is nonmagnetic and is completely compatible with MRI equipment.
The fixing mode of the probe unit 3 in the mounting groove 11 is not limited, and the probe unit may be in a snap-fit mode, and may also be fixed by adhesion or interference fit. The probe connecting rod 2 is of a pipeline structure, the ultrasonic source is positioned inside the probe bracket 1, and a lead connected with external equipment is led out from the pipeline.
The working principle of the embodiment is as follows: the invention adopts the probe units 3 with three curvature radiuses to integrate the probe bracket 1, and when the probe bracket 1 rotates by 120 degrees along with the probe connecting rod 2, one probe unit 3 with different curvature radiuses is replaced, thereby changing the ultrasonic focusing focus. The embodiment can make up the defect that the focus of the ultrasonic system is controlled by the phase and focused in the treatment process in the space moving range, and has great significance for realizing large-range tumor ablation and reducing ablation errors.
In conclusion, the three probes with the curvatures are integrated, so that the focusing depth of the ultrasonic focus is increased, and different patients and focuses with different depths can be conveniently treated; the integrated application of the three-curved-surface probe improves the treatment efficiency, can realize one-time magnetic resonance guidance and melt focuses in different areas for many times, and greatly reduces the treatment time and pain of patients.
The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the above teachings. Therefore, the technical solutions that can be obtained by a person skilled in the art through logical analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection determined by the claims.