ULTRASONIC NEGATIVE PRESSURE IRRIGATION AND EVACUATION HIGH-PERFORMANCE POLYMER MICRO-CAPILLARY CANNULA
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United States of America Patent
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Issued Date -
Nov 16, 2023
app pub date -
May 10, 2022
filing date -
May 10, 2022
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Abstract
The present invention describes an endodontic high-performance polymer micro-capillary cannula for use with a dental tool having an ultrasonic/sonic energy generator, and providing concomitantly irrigation, activation of the irrigation liquid and evacuation of the root canal content. The micro-capillary cannula provides continuous delivery of an irrigant from the ultrasonic or sonic handpiece while vibrating inside canal, allowing the activation of the irrigant. Energy generated by an ultrasonic or sonic generator is translated into movement of the cannula to provide optimum cleaning to the root canal. Simultaneously, negative pressure is formed at the tip end of the cannula by a tubing connection at the proximal end of the cannula, which is connected to the suction dental unit. The evacuation at the end of the cannula helps irrigant movement from the coronal part of the canal to the apical part, while avoids apical extrusion of the irrigant.
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