CN219963772U - Dual transducer ultrasound therapy head and ultrasound therapy apparatus - Google Patents
Dual transducer ultrasound therapy head and ultrasound therapy apparatus Download PDFInfo
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- CN219963772U CN219963772U CN202321685976.8U CN202321685976U CN219963772U CN 219963772 U CN219963772 U CN 219963772U CN 202321685976 U CN202321685976 U CN 202321685976U CN 219963772 U CN219963772 U CN 219963772U
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- 238000002560 therapeutic procedure Methods 0.000 title claims description 27
- 238000002604 ultrasonography Methods 0.000 title claims description 24
- 230000009977 dual effect Effects 0.000 title claims description 14
- 238000009210 therapy by ultrasound Methods 0.000 claims abstract description 20
- 239000003990 capacitor Substances 0.000 claims description 32
- 238000000034 method Methods 0.000 claims 1
- 230000005284 excitation Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model provides a double-transducer ultrasonic treatment head and ultrasonic treatment equipment, wherein the double-transducer ultrasonic treatment head comprises a driving circuit, a first transducer circuit and a second transducer circuit, and the input end of the first transducer circuit and the input end of the second transducer circuit are electrically connected with the same output end of the driving circuit; the first transducer circuit comprises a first impedance matching circuit and a first transducer, the input end of the first impedance matching circuit is electrically connected with the output end of the driving circuit, and the output end of the first impedance matching circuit is electrically connected with the first transducer; the second transducer circuit comprises a second impedance matching circuit and a second transducer, the input end of the second impedance matching circuit is electrically connected with the output end of the driving circuit, and the output end of the second impedance matching circuit is electrically connected with the second transducer; the resonant frequency of the first transducer circuit is the same as the resonant frequency of the second transducer circuit. The utility model can shorten the working time, prolong the service life and ensure consistent ultrasonic output power.
Description
Technical Field
The utility model relates to the technical field of ultrasonic treatment equipment, in particular to a double-transducer ultrasonic treatment head and ultrasonic treatment equipment using the double-transducer ultrasonic treatment head.
Background
At present, the conventional focusing ultrasonic treatment head adopts a single transducer, the single transducer is fixed in the treatment head through a screw rod, then a handle of the treatment head drives the transducer to realize forward and backward movement through pushing the screw rod, and the transducer emits focusing ultrasonic pulses to heat tissues with specific depth of a human body. When the ultrasonic pulse generator is used, the handle firstly pushes the screw rod to the forefront, then the ultrasonic transducer starts to output ultrasonic pulses, then the handle gradually pulls the screw rod to the rear until the screw rod is pulled to the rearmost, and at the moment, the ultrasonic transducer has performed ultrasonic pulse output once on tissues on the whole path, and the output can be continuous line output or intermittent point pulse output. However, such an ultrasonic therapy head employing a single transducer has a relatively long operating time and a short lifetime due to frequent wave generation.
Disclosure of Invention
It is a first object of the present utility model to provide a dual transducer ultrasound therapy head that shortens the operating time, extends the service life, and provides consistent ultrasound output power.
A second object of the present utility model is to provide an ultrasonic treatment apparatus which can shorten the working time, lengthen the service life, and make the ultrasonic output power uniform.
In order to achieve the first object, the dual-transducer ultrasonic therapy head provided by the utility model comprises a driving circuit, a first transducer circuit and a second transducer circuit, wherein the input end of the first transducer circuit and the input end of the second transducer circuit are electrically connected with the same output end of the driving circuit; the first transducer circuit comprises a first impedance matching circuit and a first transducer, the input end of the first impedance matching circuit is electrically connected with the output end of the driving circuit, and the output end of the first impedance matching circuit is electrically connected with the first transducer; the second transducer circuit comprises a second impedance matching circuit and a second transducer, the input end of the second impedance matching circuit is electrically connected with the output end of the driving circuit, and the output end of the second impedance matching circuit is electrically connected with the second transducer; the resonant frequency of the first transducer circuit is the same as the resonant frequency of the second transducer circuit.
According to the scheme, the two transducers are arranged in the double-transducer ultrasonic treatment head, and the two transducers are connected in parallel in the single treatment head, so that the working time is shortened, the working efficiency is improved, each transducer only bears half of the emission amount, and the service life of the whole treatment head is doubled compared with that of a traditional product. In addition, the input end of the first transducer circuit and the input end of the second transducer circuit are electrically connected with the same output end of the driving circuit, the resonant frequency of the first transducer circuit is the same as that of the second transducer circuit, the same group of excitation circuits can be shared, the ultrasonic output power of the first transducer circuit and the ultrasonic output power of the second transducer circuit are unified, the cost of the control circuit is saved, and good output consistency is realized.
In a further scheme, the first impedance matching circuit comprises a first inductor and a first matching capacitor, the first end of the first inductor is electrically connected with the output end of the driving circuit, the second end of the first inductor is electrically connected with the first end of the first matching capacitor, the second end of the first matching capacitor is grounded, and the first transducer is connected with the first matching capacitor in parallel.
In a further scheme, the second impedance matching circuit comprises a second inductor and a second matching capacitor, the first end of the second inductor is electrically connected with the output end of the driving circuit, the second end of the second inductor is electrically connected with the first end of the second matching capacitor, the second end of the second matching capacitor is grounded, and the second transducer is connected with the second matching capacitor in parallel.
Therefore, the first impedance matching circuit is provided with the first inductor and the first matching capacitor, the second impedance matching circuit is provided with the second inductor and the second matching capacitor, and the antiresonance frequencies of the first transducer and the second transducer can be consistent by selecting the first inductor, the first matching capacitor, the second inductor and the second matching capacitor.
In a further scheme, the driving circuit comprises a driving chip, a first NMOS tube and a second NMOS tube, wherein the grid electrode of the first NMOS tube is electrically connected with the first output end of the driving chip, the drain electrode of the first NMOS tube is electrically connected with the power end, the source electrode of the first NMOS tube is electrically connected with the drain electrode of the second NMOS tube, the grid electrode of the second NMOS tube is electrically connected with the second output end of the driving chip, and the source electrode of the second NMOS tube is grounded; the source electrode of the first NMOS tube and the drain electrode of the second NMOS tube are electrically connected with the output end of the driving circuit.
The driving circuit drives the first NMOS tube and the second NMOS tube through the driving chip, so that the first transducer and the second transducer are excited.
In a further aspect, the dual-transducer ultrasound therapy head further includes a sliding bar, the first transducer and the second transducer are mounted on the sliding bar, and the first transducer and the second transducer move along an extension direction of the sliding bar.
Therefore, the sliding rod is arranged, so that the first transducer and the second transducer are both arranged on the sliding rod, and the movement of the first transducer and the second transducer can be conveniently controlled simultaneously.
In a further aspect, the orientation of the first transducer is the same as the orientation of the second transducer; the motion track of the first transducer is connected with the motion track of the second transducer.
Therefore, the motion trail of the first transducer is connected with the motion trail of the second transducer, and each transducer can realize ultrasonic output on the whole line only by taking half of the path, so that the working time is shortened.
In a further scheme, the sliding rod is a sliding screw rod, the first energy converter and the second energy converter are both provided with fixing pieces, the fixing pieces are provided with screw holes, and the sliding screw rod is connected with the screw holes in a matched mode.
It can be seen that the simultaneous control is facilitated by controlling the first transducer and the second transducer with a sliding screw.
In a further aspect, the emitting surface of the first transducer and the emitting surface of the second transducer are concave cambered surfaces.
Therefore, the emitting surface of the first transducer and the emitting surface of the second transducer are concave cambered surfaces, and focused ultrasonic pulses can be emitted.
In order to achieve the second object of the present utility model, the present utility model provides an ultrasonic treatment apparatus provided with a dual-transducer ultrasonic treatment head, which adopts the above-mentioned dual-transducer ultrasonic treatment head.
Drawings
Fig. 1 is a schematic block diagram of a dual transducer ultrasound therapy head in an embodiment of the ultrasound therapy device of the present utility model.
Fig. 2 is a schematic diagram of the structure of a dual transducer ultrasound therapy head in an embodiment of the ultrasound therapy device of the present utility model.
Fig. 3 is a schematic view of the structure of the first transducer and the second transducer in the initial position of the sliding screw in the embodiment of the ultrasonic treatment apparatus of the present utility model.
Fig. 4 is a schematic view of the structure of the first transducer and the second transducer at the end position of the sliding screw in an embodiment of the ultrasonic treatment apparatus of the present utility model.
The utility model is further described below with reference to the drawings and examples.
Detailed Description
Ultrasound therapy device embodiment:
in this embodiment, the ultrasonic treatment apparatus is provided with a dual-transducer ultrasonic treatment head through which ultrasonic pulses can be output.
In this embodiment, as shown in fig. 1, the dual-transducer ultrasonic therapy head includes a driving circuit 1, a first transducer circuit 2, and a second transducer circuit 3, and an input terminal of the first transducer circuit 2 and an input terminal of the second transducer circuit 3 are electrically connected to the same output terminal of the driving circuit 1.
The driving circuit 1 comprises a driving chip U1, a first NMOS tube Q1 and a second NMOS tube Q2, wherein the grid electrode of the first NMOS tube Q1 is electrically connected with the first output end of the driving chip U1, the drain electrode of the first NMOS tube Q1 is electrically connected with the power supply end VCC-DEVICE, the source electrode of the first NMOS tube Q1 is electrically connected with the drain electrode of the second NMOS tube Q2, the grid electrode of the second NMOS tube Q2 is electrically connected with the second output end of the driving chip U1, and the source electrode of the second NMOS tube Q2 is grounded. The source electrode of the first NMOS tube Q1 and the drain electrode of the second NMOS tube Q2 are electrically connected with the output end of the driving circuit 1. In this embodiment, the driving chip U1 is a chip of LTC4442-1 type, and the working principle of the chip of LTC4442-1 type for driving two NMOS transistors is known technology and will not be described here again.
The first transducer circuit 2 includes a first impedance matching circuit 21 and a first transducer 22, an input terminal of the first impedance matching circuit 21 is electrically connected to an output terminal of the driving circuit 1, and an output terminal of the first impedance matching circuit 21 is electrically connected to the first transducer 22. The second transducer circuit 3 includes a second impedance matching circuit 31 and a second transducer 32, an input terminal of the second impedance matching circuit 31 is electrically connected to an output terminal of the driving circuit 1, and an output terminal of the second impedance matching circuit 31 is electrically connected to the second transducer 32. The resonant frequency of the first transducer circuit 2 is the same as the resonant frequency of the second transducer circuit 3.
In this embodiment, the first impedance matching circuit 21 includes a first inductor L1 and a first matching capacitor C1, a first end of the first inductor L1 is electrically connected to the output end of the driving circuit 1, a second end of the first inductor L1 is electrically connected to the first end of the first matching capacitor C1, a second end of the first matching capacitor C1 is grounded, and the first transducer 22 is connected in parallel to the first matching capacitor C1. The second impedance matching circuit 31 includes a second inductor L2 and a second matching capacitor C2, where a first end of the second inductor L2 is electrically connected to the output end of the driving circuit 1, a second end of the second inductor L2 is electrically connected to a first end of the second matching capacitor C2, a second end of the second matching capacitor C2 is grounded, and the second transducer 32 is connected in parallel to the second matching capacitor C2. The antiresonance frequency of the first transducer 22 can be adjusted by changing the size of the first matching capacitor C1, the antiresonance frequency of the second transducer 32 can be adjusted by changing the size of the second matching capacitor C2, and in the case that the inductance value of the first inductance L1 is equal to the inductance value of the second inductance L2, the antiresonance frequency of the first transducer 22 and the second transducer 32 is consistent by changing the values of the first matching capacitor C1 and the second matching capacitor C2.
In this embodiment, referring to fig. 2, the dual-transducer ultrasound therapy head further includes a sliding rod 4, the first transducer 22 and the second transducer 32 are both mounted on the sliding rod 4, and the first transducer 22 and the second transducer 32 both move along the extending direction of the sliding rod 4. The orientation of the first transducer 22 is the same as the orientation of the second transducer 32, and the motion profile of the first transducer 22 meets the motion profile of the second transducer 32. Preferably, the sliding rod 4 is a sliding screw, the first transducer 22 and the second transducer 32 are both provided with a fixing piece, the fixing piece is provided with a screw hole (not shown), the sliding screw is connected with the screw hole in a matching manner, in this embodiment, the first transducer 22 is provided with a first fixing piece 221, and the second transducer 32 is provided with a second fixing piece 321. The emitting surface 222 of the first transducer 22 and the emitting surface 322 of the second transducer 32 are concave curved surfaces. The emitting surface 222 is disposed opposite to the first fixing member 221, and the emitting surface 322 is disposed opposite to the second fixing member 321. Of course, in order to control the sliding screw, a rotating handle (not shown) may be further provided to be connected to one end of the sliding screw, and the sliding screw may be driven to rotate by the rotating handle, so as to control the first transducer 22 and the second transducer 32 to move along the extending direction of the sliding rod 4.
In operation of the dual transducer ultrasound therapy head of the present utility model, first, the first transducer 22 and the second transducer 32 are moved to the leftmost side of the slide bar 4, as shown in fig. 3. Then, the driving chip U1 in the driving circuit 1 obtains an excitation clock, drives the first NMOS transistor Q1 and the second NMOS transistor Q2 by bootstrap boosting, and outputs an excitation signal from the output terminal of the driving circuit 1, wherein the excitation signal excites Y1 and Y3 respectively through two groups of impedance matching circuits, and at this time, the two transducers output pulses simultaneously.
Then, the first transducer 22 and the second transducer 32 are moved to the right, and if the intermittent dotting mode is performed at this time, the first transducer 22 and the second transducer 32 are first stopped from being excited, and then the first transducer 22 and the second transducer 32 are moved by a certain distance, and then output is performed again. If the test is in continuous output mode, the transducers are always energized to ultrasonic output and then the first transducer 22 and the second transducer 32 are moved at a certain speed.
When the first transducer 22 is moved to the initial position of the second transducer 32, as shown in fig. 4, the second transducer 32 is separated from the first transducer 2 by 1/2 path, so that the first transducer 22 and the second transducer 32 already cover the whole path, that is, only the path travel of the first transducer 22 and the second transducer 32 by 1/2 is controlled.
According to the double-transducer ultrasonic treatment head, two transducers are arranged in parallel in a single treatment head, so that the working time is shortened, the working efficiency is improved, each transducer only bears half of emission, and the service life of the whole treatment head is doubled compared with that of a traditional product. In addition, the input end of the first transducer circuit 2 and the input end of the second transducer circuit 3 are electrically connected with the same output end of the driving circuit 1, the resonant frequency of the first transducer circuit 2 is the same as the resonant frequency of the second transducer circuit 3, the same group of excitation circuits can be shared, the ultrasonic output power of the two excitation circuits is unified, the cost of the control circuit is saved, and good output consistency is realized.
It should be noted that the foregoing is only a preferred embodiment of the present utility model, but the design concept of the present utility model is not limited thereto, and any insubstantial modifications made to the present utility model by using the concept fall within the scope of the present utility model.
Claims (9)
1. A dual transducer ultrasound therapy head, characterized by: the device comprises a driving circuit, a first transducer circuit and a second transducer circuit, wherein the input end of the first transducer circuit and the input end of the second transducer circuit are electrically connected with the same output end of the driving circuit;
the first transducer circuit comprises a first impedance matching circuit and a first transducer, wherein the input end of the first impedance matching circuit is electrically connected with the output end of the driving circuit, and the output end of the first impedance matching circuit is electrically connected with the first transducer;
the second transducer circuit comprises a second impedance matching circuit and a second transducer, wherein the input end of the second impedance matching circuit is electrically connected with the output end of the driving circuit, and the output end of the second impedance matching circuit is electrically connected with the second transducer;
the resonant frequency of the first transducer circuit is the same as the resonant frequency of the second transducer circuit.
2. The dual transducer ultrasound therapy head according to claim 1, wherein:
the first impedance matching circuit comprises a first inductor and a first matching capacitor, wherein a first end of the first inductor is electrically connected with an output end of the driving circuit, a second end of the first inductor is electrically connected with a first end of the first matching capacitor, a second end of the first matching capacitor is grounded, and the first transducer is connected with the first matching capacitor in parallel.
3. The dual transducer ultrasound therapy head according to claim 2, wherein:
the second impedance matching circuit comprises a second inductor and a second matching capacitor, wherein the first end of the second inductor is electrically connected with the output end of the driving circuit, the second end of the second inductor is electrically connected with the first end of the second matching capacitor, the second end of the second matching capacitor is grounded, and the second transducer is connected with the second matching capacitor in parallel.
4. A dual transducer ultrasound therapy head according to any of claims 1 to 3, wherein:
the driving circuit comprises a driving chip, a first NMOS tube and a second NMOS tube, wherein the grid electrode of the first NMOS tube is electrically connected with a first output end of the driving chip, the drain electrode of the first NMOS tube is electrically connected with a power supply end, the source electrode of the first NMOS tube is electrically connected with the drain electrode of the second NMOS tube, the grid electrode of the second NMOS tube is electrically connected with a second output end of the driving chip, and the source electrode of the second NMOS tube is grounded;
the source electrode of the first NMOS tube and the drain electrode of the second NMOS tube are electrically connected with the output end of the driving circuit.
5. A dual transducer ultrasound therapy head according to any of claims 1 to 3, wherein:
the dual-transducer ultrasonic therapy head further comprises a sliding rod, the first transducer and the second transducer are both mounted on the sliding rod, and the first transducer and the second transducer move along the extending direction of the sliding rod.
6. The dual transducer ultrasound therapy head according to claim 5, wherein:
the orientation of the first transducer is the same as the orientation of the second transducer;
the motion track of the first transducer is connected with the motion track of the second transducer.
7. The dual transducer ultrasound therapy head according to claim 5, wherein:
the sliding rod is a sliding screw rod, the first energy converter and the second energy converter are both provided with fixing pieces, the fixing pieces are provided with screw holes, and the sliding screw rod is connected with the screw holes in a matched mode.
8. The dual transducer ultrasound therapy head according to claim 5, wherein:
the emitting surface of the first energy converter and the emitting surface of the second energy converter are concave cambered surfaces.
9. An ultrasonic treatment apparatus is provided with a dual-transducer ultrasonic treatment head; the method is characterized in that:
the dual-transducer ultrasound therapy head employs the dual-transducer ultrasound therapy head of any of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321685976.8U CN219963772U (en) | 2023-06-29 | 2023-06-29 | Dual transducer ultrasound therapy head and ultrasound therapy apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321685976.8U CN219963772U (en) | 2023-06-29 | 2023-06-29 | Dual transducer ultrasound therapy head and ultrasound therapy apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219963772U true CN219963772U (en) | 2023-11-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321685976.8U Active CN219963772U (en) | 2023-06-29 | 2023-06-29 | Dual transducer ultrasound therapy head and ultrasound therapy apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219963772U (en) |
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2023
- 2023-06-29 CN CN202321685976.8U patent/CN219963772U/en active Active
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