Ultrasonic emulsification instrument based on lipoplastyTechnical Field
The invention relates to the field of ultrasonic emulsified fat shaping, wherein IPC classification numbers are as follows: C12N5/077, in particular to a phacoemulsification instrument based on lipoplasty.
Background
At this stage, liposuction surgery is widely accepted as a method for rapid plastic body building and weight loss. The liposuction operation is a conventional operation in the medical cosmetology industry and plastic institutions, and has the advantages of large operation share, high safety, good benefit and easy mastering of technology. The existing liposuction method usually has several modes such as manual negative pressure, electric negative pressure liposuction, electric reciprocating resonance auxiliary liposuction, external ultrasound auxiliary liposuction, hydrodynamic liposuction and the like, wherein the electric negative pressure auxiliary liposuction is commonly used, but the manual negative pressure liposuction mode is adopted, so that the physical consumption of doctors is large, and meanwhile, postoperative hematoma, edema probability is high, and recovery time is long.
The patent "ultrasonic device of non-traumatic dissolved subcutaneous fat" improves the ultrasonic transducer handle, and the main improvement point lies in setting up ultrasonic transducer handle into arc to set up several tens low functional transducers along arc, be used for dissolving subcutaneous fat. However, the improved device has the disadvantages of complicated operation, inconvenient use by users, no practicability,
the patent 'focused ultrasonic wave noninvasive liposuction method and device', the noninvasive liposuction method of focused ultrasound that proposes, produce ultrasonic signal through ultrasonic power supply, and convey ultrasonic transducer after enlargeing, change its dress into mechanical vibration mode and emulsify fat, but the resonant frequency of fat under normal circumstances is about 36KHZ, and different physique to different users simultaneously, the vibration frequency that bears is different, and too high vibration frequency can cause uncomfortable sense to the user.
Therefore, it is urgently needed to provide an ultrasonic emulsification and low negative pressure liposuction instrument, which can apply energy to the user's fat layer and selectively liquefy fat cells in a very short time to emulsify the fat cells by using a frequency-adjustable mode, and the emulsified fat is pumped out by using a low negative pressure liposuction mode, so that a safe outpatient treatment process without general anesthesia is achieved.
Disclosure of Invention
Aiming at some problems in the prior art, the invention provides an ultrasonic emulsification instrument based on lipoplasty, which specifically comprises an upper end cover (6), an ultrasonic transduction device (7), a step-type amplitude transformer (8), an ultrasonic handle (9) and an ultrasonic probe clamp (10); the upper end cover (6), the step-type amplitude transformer (8), the ultrasonic transducer (7), the ultrasonic handle (9) and the ultrasonic probe clamp (10) are sequentially connected; the ultrasonic transducer (7) comprises a screw (1), a rear cover plate (2), an electrode plate (3), piezoelectric ceramics (4) and a front cover plate (5); the front cover plate (5) and the upper end cover (6) are respectively arranged at two ends of the ultrasonic wave energy conversion device (7); the upper end cover (6) is connected with the electronic oscillator; the screw (1) is connected with a trapezoidal amplitude transformer (8); a groove is formed between the rear cover plate (2) and the front cover plate (5), and piezoelectric ceramics (4) are arranged in the groove; the piezoelectric ceramics (4) are uniformly provided with the electrode plates (3); the screw (1) is arranged at the center of the ultrasonic emulsification device (7) and is close to one side of the rear cover plate (2).
Preferably, the transduction mode of the ultrasonic transduction device 7 adopts an intermittent pulse mode.
Preferably, the ultrasonic transducer device 7 is capable of adjusting the transmitting frequency to 36KHz, which is the resonance frequency with human fat.
Preferably, theultrasonic probe holder 10 is connected and fixed to the ultrasonic probe by a nut.
Preferably, the probe of the ultrasonic probe is provided with a groove.
Preferably, the electronic oscillator adopts a full-bridge inverter circuit, and the full-bridge inverter circuit adjusts the frequency of the alternating current signal by adjusting the PWM waveform.
Preferably, the frequency of the alternating current signal is transmitted to the ultrasonic transducer 7, and the ultrasonic transducer 7 is driven to emit the vibration frequency.
Preferably, the ultrasonic transducer 7 is connected to astepped horn 8, and thestepped horn 8 receives and amplifies the vibration frequency emitted from the ultrasonic transducer 7 and transmits the amplified vibration frequency to theultrasonic probe holder 10.
Preferably, thestepped horn 8 and theultrasonic handle 9 are fixed by welding flanges.
Preferably, the piezoelectric ceramic 4 is packaged in a titanium alloy copper wire wrapping mode, and afront cover plate 5 and arear cover plate 2 are arranged at two ends of the piezoelectric ceramic respectively.
Compared with the prior art, the invention has the following beneficial effects:
(1) The ultrasonic emulsification device can adjust proper vibration frequency according to different user constitutions, so that the optimal fat emulsification frequency is achieved.
(2) The ultrasonic emission frequency of the ultrasonic emulsification device is 36KHZ, the vibration frequency of 36KHZ is selected to be closest to the resonance frequency of fat, and when the fat vibrates, less energy is needed to emulsify the fat.
(3) According to the acoustic probe, the groove is formed in the top of the probe, so that the surface area of the probe is increased, the fit degree of the probe and surrounding tissues is enhanced, the working efficiency of fat emulsification of a user is improved, and the energy required for eliminating quantitative fat tissues is reduced.
Drawings
FIG. 1 is a block diagram of an ultrasonic transducer assembly;
FIG. 2 is a view of the internal structure of a phacoemulsification machine based on lipoplasty;
1, screw rod in the attached drawing; 2. a rear cover plate; 3. a voltage level chip; 4. piezoelectric ceramics; 5. a front cover plate; 6. an upper end cover; 7. an ultrasonic transducing device; 8. a stepped horn; 9. an ultrasonic handle; 10. an ultrasonic probe holder.
Detailed Description
An ultrasonic emulsification instrument based on lipoplasty comprises an electronic oscillator, an ultrasonic transducer 7 and an ultrasonic probe.
(1) Electronic oscillator
In a real-time mode, the electronic oscillator adopts a full-bridge inverter circuit, the full-bridge inverter circuit adjusts the frequency of an alternating current signal by adjusting a PWM waveform so as to adjust the frequency of the ultrasonic emulsification device, transmits the acquired frequency of the alternating current signal to the ultrasonic transduction device 7, and drives the ultrasonic transduction device 7 to emit vibration frequency, wherein the emission frequency can be adjusted to 36KHZ so as to reach resonance frequency with human fat.
In a preferred embodiment, the control circuit part of the electronic oscillator further comprises a 220V ac power supply module, a rectifier module, an inverter module, and a DSP-based control module.
(2) Ultrasonic transducer 7
In one embodiment, the ultrasonic transducer 7 adopts an intermittent pulse mode, adopts a piezoelectric ceramic technology based on titanium alloy, and has adjustable emission frequency, and astepped amplitude transformer 8 is arranged above the ultrasonic transducer 7 for receiving and amplifying the vibration frequency emitted by the ultrasonic transducer 7 and transmitting the vibration frequency to the ultrasonic probe, and theamplitude transformer 8 and theultrasonic handle 9 are fixed through a welding flange.
In a preferred embodiment, thehorn 8 may be selected from the group consisting of a longitudinally vibrating horn, a flexural vibrating horn, and a torsional vibrating horn, wherein the higher strength and higher flexural strength stiffness horn is selected to improve the operational stability of the phacoemulsification device.
In a preferred embodiment, the ultrasonic transducer 7 is composed of a back cover plate, an insulating tube, a ceramic wafer crystal, a copper electrode and a front cover plate which are connected in sequence, wherein thescrew 1 is positioned in the center of the transducer and has certain compressive strength.
(3) Ultrasonic probe
In one embodiment, the ultrasonic probe is provided with a groove, and five types of probes can be switched by fixedly connecting a nut at the front end of the ultrasonic transducer 7; the types of the probes are 1.2mm,1.9mm,2.9mm,3.7mm and 4.5mm titanium alloy probes, and the probes are simultaneously respectively used for an eye bag, a face, an arm, a lower leg, a waist, an abdomen and a back.
The embodiment is as follows:
the ultrasonic emulsification device based on the lipoplasty comprises an upper end cover 6, an ultrasonic transducer 7, astepped amplitude transformer 8, anultrasonic handle 9 and anultrasonic probe clamp 10.
The specific connection mode is that the upper end cover 6, the ultrasonic transducer 7, the step-type amplitude transformer 8, theultrasonic handle 9 and theultrasonic probe clamp 10 are connected in sequence.
The ultrasonic transducer 7 comprises ascrew 1, arear cover plate 2, an electrode plate 3,piezoelectric ceramics 4 and afront cover plate 5.
The specific connection mode is that thescrew rod 1 is installed at the center of the ultrasonic emulsification device 7 and close to one side of therear cover plate 2, thefront cover plate 5 is connected with the upper end cover 6, the upper end cover 6 is connected with the electronic oscillator, therear cover plate 2 is connected with thetrapezoidal amplitude transformer 8, thefront cover plate 5 and therear cover plate 2 are respectively buckled and installed at two ends of the ultrasonic energy conversion device 7, a groove is formed between therear cover plate 2 and thefront cover plate 5, the piezoelectric ceramic 4 is installed, and the piezoelectric ceramic 4 is evenly welded with the electrode piece 3.
The working principle is as follows: as shown in the figure, ultrasonic transducer 7 is connected with the electronic oscillator through upper end cover 6, the electronic oscillator in establish based on full-bridge inverter circuit, through adjusting PWM waveform output alternating current signal, alternating current signal pass through ultrasonic transducer 7, convert the signal of telecommunication into mechanical vibration to transmit mechanical vibration and amplify in laddertype amplitude transformer 8, the mechanical vibration after being enlargied passes throughultrasonic handle 9 and transmits to ultrasonicprobe anchor clamps 10, and convert to reach the 36KHZ frequency interval that resonant frequency is the same with human fat, vibrate and emulsify fat.