Safety mechanism and methods for rotating imaging device

Details Safety mechanism and methods for rotating imaging device Safety mechanism and methods for rotating imaging device

A - Human Necessities

61

B

A61B 8/12 (2006.01)

Patent

CA 2356309

The invention provides exemplary systems and methods to prevent rotation of an imaging device if the imaging device is advanced beyond a distal end of a catheter. In one exemplary embodiment, a catheter (20) is provided which comprises a catheter body (22, 50) having a proximal end (24), a distal end (26) and a lumen (36, 54) which terminates in an exit port (60) at the distal end (26). The lumen (36, 54) is configured to receive a rotatable imaging device (56) having an ultrasonic imaging element (58). An ultrasonically recognizable pattern (42, 44) is disposed proximally to or at the exit port. The pattern (42, 44) is adapted to reflect a signal from the imaging element (58) to produce a unique detectable image (61) which in turn is employed to stop rotation of the imaging device (56).

L'invention concerne des systèmes exemplaires et des procédés associés destinés à empêcher un dispositif d'imagerie de tourner lorsque ledit dispositif dépasse une extrémité distale d'un cathéter. Dans un mode de réalisation exemplaire, un cathéter (20) est constitué d'un corps de cathéter (22, 50) présentant une extrémité proximale (24), une extrémité distale (26) et d'une lumière (36, 54) se terminant par un orifice de sortie (60) à l'extrémité distale (26). La lumière (36, 54) est conçue de façon à recevoir un dispositif d'imagerie(56) rotatif pourvu d'un élément d'imagerie ultrasonique (58). Un motif (42, 44) reconnaissable ultrasoniquement est placé à proximité de ou à l'orifice de sortie. Le motif (42, 44) est conçu de façon à refléter un signal provenant de l'élément d'imagerie (58) pour produire une image (61) décelable unique, laquelle sert à arrêter la rotation du dispositif d'imagerie (56).

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