SYSTEM MIT EINEM DOPPLER-SENSOR ZUM LOKALISIEREN UND KANÜLIEREN DER GEFÄSS-STRUKTUR EINES PATIENTEN

SYSTEM MIT EINEM DOPPLER-SENSOR ZUM LOKALISIEREN UND KANÜLIEREN DER GEFÄSS-STRUKTUR EINES PATIENTEN

A guiding catheter includes a Doppler sensor disposed at a distal end of a flexible shaft. The Doppler sensor can sense a blood flow turbulence level within a chamber of the heart or a blood vessel of the heart. Detecting changes in a blood flow turbulence level is used to assist guiding of the dist...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: HALDEMAN, PAUL
Format: Patent
Sprache:ger
Schlagworte:
DIAGNOSIS
HUMAN NECESSITIES
HYGIENE
IDENTIFICATION
MEDICAL OR VETERINARY SCIENCE
SURGERY
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Beschreibung
Zusammenfassung:A guiding catheter includes a Doppler sensor disposed at a distal end of a flexible shaft. The Doppler sensor can sense a blood flow turbulence level within a chamber of the heart or a blood vessel of the heart. Detecting changes in a blood flow turbulence level is used to assist guiding of the distal end of the flexible shaft. The Doppler sensor may include a piezoelectric sensor or an optical sensor. The sensor readings may be processed to show turbulence through a time domain or frequency domain presentation of velocity. The sensor readings can be used to modulate an audible waveform to indicate turbulence. The guiding catheter may further include steering apparatus enabling deflection of the distal tip.