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Zibo Yuhai Electronic Ceramic Co., Ltd.
(Originally, Zibo Wireless Ceramic Factory)
Address :  No.57 Chuangye Road, Development Area Boshan, Zibo City, Shandong Prov. P.R. of China 
Tel : +86-0533-4230012      
Fax : +86-0533-4231700
Email : ceo@zbyuhai.com
            

Product details
  • Product name: Piezoelectric focus bowl HIFU parts -2/4/7MHZ
  • Product number: PZT-82-2/4/7MHZ HIFU
  • Date: 2017-01-09
  • Views : 155

Piezoelectric ceramic hemisphere  

Electrode direction: thickness direction

 

Applications:  High Intensity Focused Ultrasound, high power ultrasonic transducer

 

HIFU high intensity focused ultrasound (HIFU) is a new technique of ultrasound surgery developed in the 1940s. It uses ultrasound as energy source, uses its penetration and focusing mode to focus the ultrasound energy on the SMAS layer of human body, forms a high sound intensity area in SMAS, which can penetrate into 3.0mm-4.5mm subcutaneously and make the temperature of SMAS tissue reach 65 degrees C within 0.5-1 seconds. Upper (the strongest temperature of all non-invasive skin-tightening instruments) results in collagen recombination in SMAS tissues without damaging normal tissues outside the focal area, thus achieving the effect of fascial elevation.

 

Focused ultrasound system has good tissue penetration and localization. It can focus energy through surface tissue and target tissue at a specific depth to produce biological effects, which can make the pathological tissue recover quickly. The dosage of focused ultrasound therapy is easy to control and safe. After treatment, only local tissue has transient congestion and edema, and surface cells can remain intact, quick recovery.

Ultrasound focusing has good tissue penetration and energy storage. The host generates high-frequency electrical signals, which are converted into focused ultrasound by transducer. The ultrasound is transmitted to the lesion tissues by circulating water system, sound transmission membrane and contact coupling agent. Ultrasound can produce thermal effect, mechanical effect, cavitation effect and biochemical effect in biological tissues. Polaris uses these characteristics to act on pathological tissues to degenerate them, promote tissue reconstruction and improve microcirculation to achieve therapeutic purposes.
 

YUHAI piezo material for HIFU systerm: 

 

 

Typical value of piezoelectric ceramic materials performance  
"Hard" PZT materials            
Properties     PZT-41 PZT-42 PZT-43 PZT-82
Dielectric Constant ɛTr3   1050 1250 1420 1100
             
Coupling factor  KP   0.58 0.58 0.58 0.52
  K31   0.32 0.33 0.34 0.3
  K33   0.66 0.67 0.68 0.57
  Kt   0.48 0.48 0.48 0.4
Piezoelectric coefficient d31 10-12m/v -106 -124 -138 -100
  d33 10-12m/v 260 280 300 240
  g31 10-3vm/n -11.4 -11.2 -11 -10.3
  g33 10-3vm/n 28 25.3 24 25
Frequency coefficients Np   2280 2200 2160 2280
  N1   1671 1613 1583 1671
  N3   1950 1900 1875 1950
  Nt   2250 2200 2200 2300
Elastic compliance coefficient Se11 10-12m2/n 11.8 12.7 13.2 11.6
Machanical quality factor Qm   1000 800 600 1200
             
Dielectric loss factor Tg δ % 0.3 0.4 0.5 0.3
Density ρ g/cm3 7.5 7.5 7.5 7.6
Curie Temperature Tc °C 320 320 320 310
Young's modulus YE11 <109N/m3 85 79 76 86
Poison Ratio     0.3 0.3 0.3 0.3
 
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