ULTRASONIC DEVICES AND SYSTEMS FOR VESSEL SEALING

ULTRASONIC DEVICES AND SYSTEMS FOR VESSEL SEALING

An ultrasonic surgical instrument (100) for sealing a vessel, having an end effector (194) and a transducer (150) coupled to the end effector. When the end effector (194) is grasping a vessel, parameters of the vessel are sensed by a sensor (230) when the end effector (194) achieves a predetermined...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: GOODMAN, Kelly, E, MALANG, Keith, W, VAN TOL, David, J, TSCHUDY, Christopher, T
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
DIAGNOSIS
HUMAN NECESSITIES
HYGIENE
IDENTIFICATION
MEDICAL OR VETERINARY SCIENCE
SURGERY
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Beschreibung
Zusammenfassung:An ultrasonic surgical instrument (100) for sealing a vessel, having an end effector (194) and a transducer (150) coupled to the end effector. When the end effector (194) is grasping a vessel, parameters of the vessel are sensed by a sensor (230) when the end effector (194) achieves a predetermined velocity. A size of the vessel is estimated based on the sensed parameters. The electrical energy is controlled by a controller (240) based on maintaining a predetermined initial heating rate of heating the vessel until a predetermined amount of energy corresponding to the estimated size of the vessel has been delivered, and based on a predetermined heating rate curve of heating the vessel after the predetermined amount of energy corresponding to the estimated size of the vessel has been delivered.