Zaɓin Kayan Aiki don PCBs na Ultrasound na Likita

Tsarin daukar hoton duban dan tayi yana buƙatar daidaito mai yawa, watsa sigina mai yawan mita, aminci, da kuma jituwa ta halitta. A zuciyar waɗannan tsarin akwai PCB, kuma zaɓar kayan da suka dace yana da matuƙar muhimmanci don tabbatar da aminci, daidaito, da aiki na dogon lokaci a aikace-aikacen likita.

Me Yasa Zabin Kayan Aiki Yake da Muhimmanci a cikin PCBs na Likita na Ultrasound?

A aikace-aikacen matakin likita, musamman hoton ganewar asali, dole ne PCBs su:

• Goyi bayan watsa siginar mita mai yawa (yawanci 20-100 MHz)
• Tabbatar da kwanciyar hankali na zafi da ƙarancin asarar sigina
• Yi jituwa da kayan da suka dace da biocompatible ko wadanda ba su da guba
• Kiyaye kwanciyar hankali yayin tsaftacewa
• Bayar da babban aminci a cikin ƙananan na'urorin likitanci

Kayan da ake amfani da su don na'urorin duban dan tayi na likita (Medical Ultrasound PCBs)

1. Laminates Masu Yawan Mita

• Kayan aiki: Rogers RO4350B, Taconic RF-35
• Siffofi: Ƙarancin asarar dielectric (Df), tsayayyen dielectric (Dk)
• Aikace-aikace: Layer na sigina a cikin allunan direban transducer

2. FR-4 tare da Ingantaccen Tg

• Kayan Aiki: FR-4 Tg170+, S1000-2M
• Siffofi: Kyakkyawan aikin zafi, mai araha
• Aikace-aikace: Kayan wutar lantarki, allunan sarrafawa

3. Polyimide don Lankwasa Da'irori

• Siffofi: Babban sassauci, kyakkyawan juriya ga zafi
• Aikace-aikace: Haɗin haɗin bincike, na'urorin duban dan tayi masu amfani da su

4. Abubuwan da ke cikin yumbu

• Kayan aiki: Al₂O₃ (alumina), AlN (aluminum nitride)
• Siffofi: Kyakkyawan yanayin zafi, wanda ake amfani da shi don ƙirar ƙananan ƙarfin lantarki mai ƙarfi
• Aikace-aikace: Babban ƙarshen ganewar asali na duban dan tayi

Muhimman Abubuwan Da Za A Yi La'akari da Su

• Control na Dielectric Constant: Yana da mahimmanci don kiyaye saurin sigina da daidaitawar juriya
• Rasa Tangent (Df): Ƙananan Df suna tabbatar da ingantaccen haske na sigina da ƙananan karkacewa
• Shakar Danshi: Kayan da ke da ƙarancin shan danshi suna jure wa lalacewa yayin tsaftacewa
• Yarjejeniyar RoHS & Biocompatibility: Dole ne ya cika ƙa'idodin likita kamar RoHS, REACH, da ƙa'idodin FDA masu alaƙa

Zaɓar kayan PCB masu dacewa don na'urorin duban dan tayi na likitanci ya fi yanke shawara kan injiniyanci—abu ne na aminci ga majiyyaci da daidaiton asibiti. Yin haɗin gwiwa da ƙwararren masana'antar PCB wanda ya saba da ƙa'idodin likita yana tabbatar da cewa samfurinka ya cika buƙatun ƙa'idoji da aiki.