{"number":"US12702589B2","kindCode":"B2","documentType":"grant","title":{"original":"Method and system for cataract tissue sensing","english":"Method and system for cataract tissue sensing"},"abstract":{"original":"Systems and methods for sensing tissue in a phacoemulsification procedure are provided herein. A method may include generating a sensing signal through a frequency range centered at a local resonant frequency of an ultrasonic handpiece and measuring impedance characteristics of the signal at a distal end of a needle of an ultrasonic handpiece. A method may further include comparing the measured impedance characteristics of the generated sensing signal with one or more stored impedance profiles.…","english":"Systems and methods for sensing tissue in a phacoemulsification procedure are provided herein. A method may include generating a sensing signal through a frequency range centered at a local resonant frequency of an ultrasonic handpiece and measuring impedance characteristics of the signal at a distal end of a needle of an ultrasonic handpiece. A method may further include comparing the measured impedance characteristics of the generated sensing signal with one or more stored impedance profiles.…"},"applicants":["Johnson & Johnson Surgical Vision, Inc."],"inventors":["Christopher Waid","Cameron Nott","Katrina Lieu"],"filingDate":"2023-07-07","publicationDate":"2026-08-11","grantDate":"2026-08-11","verifiedWithOffice":true,"pdfUrl":"https://downloadpatent.com/pdf/US12702589B2.pdf","pages":{"en":"https://downloadpatent.com/patent/US12702589B2","zh-Hant":"https://downloadpatent.com/zh-Hant/patent/US12702589B2","ja":"https://downloadpatent.com/ja/patent/US12702589B2"}}