A - Human Necessities – 61 – M
Patent
A - Human Necessities
61
M
A61M 5/00 (2006.01) A61M 1/10 (2006.01) A61M 25/00 (2006.01)
Patent
CA 2688628
An insertion device (100) for inserting a cannula (158) through tissue generally comprises an inner shaft (102), a tip member (108) coupled to a distal end portion (104) of the inner shaft (102), a hollow outer shaft (120) slidably received over the inner shaft (102), and a compressible member (1 16) received over the inner shaft (102) between the tip member (108) and the outer shaft (120). The compressible member (1 16) is configured to be received in a lumen (160) of the cannula (158), and the inner shaft (102) is movable relative to the outer shaft (120) along an axial direction to compress the compressible member (1 16) between the tip member (108) and the outer shaft (120) so that the compressible member (1 16) expands in a generally radially outward direction. The radial expansion of the compressible member (1 16) releasably secures the insertion device (100) to the cannula (158).
L'invention concerne un dispositif d'introduction (100) prévu pour introduire une canule (158) à travers un tissu, qui comprend d'une manière générale un axe interne (102), un élément de pointe (108) couplé à une partie d'extrémité distale (104) de l'axe interne (102), un axe externe creux (120) reçu de manière coulissante sur l'axe interne (102), et un élément compressible (116) reçu sur l'axe interne (102) entre l'élément de pointe (108) et l'axe externe (120). L'élément compressible (116) est configuré pour être reçu dans une lumière (160) de la canule (158), et l'axe interne (102) est mobile par rapport à l'axe externe (120) le long d'une direction axiale, pour comprimer l'élément compressible (116) entre l'élément de pointe (108) et l'axe externe (120) de sorte que l'élément compressible (116) se déploie dans une direction généralement radialement vers l'extérieur. Le déploiement radial de l'élément compressible (1 16) fixe de manière libérable le dispositif d'introduction (100) à la canule (158).
Kerkhoffs Wolfgang
Marseille Oliver
Circulite Inc.
Macrae & Co.
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