Apparatus for dispensing bone cement

Apparatus for dispensing bone cement includes a cartridge for containing the bone cement and a plunger which can be inserted into the cartridge. An impedance sensor is coupled to the plunger to produce an output signal indicative of an impedance of bone cement contained in the cartridge. The apparat...

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Bibliographische Detailangaben
Hauptverfasser: KRYGER, MICHAEL, VENDRELY, TIMOTHY G
Format: Patent
Sprache:eng ; fre ; ger
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Beschreibung
Zusammenfassung:Apparatus for dispensing bone cement includes a cartridge for containing the bone cement and a plunger which can be inserted into the cartridge. An impedance sensor is coupled to the plunger to produce an output signal indicative of an impedance of bone cement contained in the cartridge. The apparatus includes a processing circuit which determines an impedance value of bone cement contained within the cartridge based on the sensor signal. The processing circuit activates a visual indicator based on the impedance value to indicate that the dough time, the end-of-work time, and/or setting-time of bone cement contained in the cartridge has been reached.