A - Human Necessities – 61 – M
Patent
A - Human Necessities
61
M
A61M 25/01 (2006.01) A61B 17/34 (2006.01)
Patent
CA 2652785
The present invention includes a sheath (10) for guiding materials in a body cavity. The sheath comprises a tubular structure having an exterior surface ( 12) of a sidewall (13) and a lumen (14) enclosed by an interior surface (16) of the sidewall. The sidewall has a duct (18) containing a magnetorheological fluid. Also presented is a method for navigating a sheath (60) comprising introducing the distal end of the sheath to a passage (62) in the patient's body; manipulating the rigidity of the magnetorheological fluid by applying a magnetic field; and positioning the sheath. A navigable catheter and sheath assembly is also presented.
L'invention concerne une gaine (10) destinée à guider des matériaux dans une cavité corporelle. Ladite gaine comprend une structure tubulaire ayant une surface extérieure (12) d'une paroi (13) et une lumière (14) enfermée dans une surface intérieure (16) de ladite paroi. Ladite paroi est dotée d'une conduite (18) qui contient un liquide magnétorhéologique. L'invention concerne également un procédé permettant de déplacer une gaine (60), qui consiste à introduire l'extrémité distale de la gaine dans un passage (62) dans le corps du patient, à manipuler la rigidité du liquide magnétorhéologique par application d'un champ magnétique; et à positionner ladite gaine. L'invention concerne enfin un ensemble cathéter et gaine navigables.
Koninklijke Philips Electronics N.v.
Smart & Biggar
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