A - Human Necessities – 61 – B
Patent
A - Human Necessities
61
B
A61B 8/08 (2006.01)
Patent
CA 2416968
An improved system and method to provide visualization of implantable leads, catheters, or other implantable devices is disclosed. According to the invention, an unmodified guiding device such as a stylet or guidewire (5) is frictionally coupled to a vibration device (7). This guiding device (5) is further inserted into the device to be visualized. When activated, the vibration device (7) transfers longitudinal waves to the guiding device, which, in turn, transfers the waves to the device that is to be visualized. These waves are detected by an imaging device (50, 52), which then generates a Doppler image of the implantable device. According to one aspect of the invention, the vibration device includes a piezoelectric actuator. According to another aspect of the invention, the frequency of the waves that are transferred by the vibration device is selectable.
Cette invention concerne un système et une technique améliorés de visualisation de fils, cathéters et autres dispositifs implantables. Selon l'invention, on raccorde par frottement un dispositif de guidage non tel qu'un styler ou un fil de guidage à un dispositif vibrant. Ce dispositif de guidage est ensuite inséré dans le dispositif à visualiser. Une fois enclenché, le dispositif vibrant transmet des ondes longitudinales au dispositif de guidage, lequel relaie ces ondes vers le dispositif à visualiser. Ces ondes sont détectées par un dispositif imageur, lequel produit une image Doppler du dispositif implantable. Selon un aspect de l'invention, le dispositif vibrant comprend un actionneur piézo-électrique. Selon un autre aspect, il est possible de choisir la fréquence des ondes transmises au dispositif vibrant.
Medtronic Inc.
Smart & Biggar
LandOfFree
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