Delivery system having a self-expanding braided stent
First Claim
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1. A delivery system for implanting a self-expanding braided stent into a blood vessel, comprising:
- an outer sleeve having a distal end and a proximal end, the outer sleeve contacting and holding the stent in a loaded state;
an inner sleeve arranged within the outer sleeve and having a proximal portion that extends from the proximal end of the outer sleeve, the proximal portion comprising a handling portion, the inner sleeve being displaceable relative to the outer sleeve;
a stent support comprising a proximal portion and a distal portion, and being displaceable relative to the inner sleeve; and
a tip arranged at the distal end of the outer sleeve and fixed to the stent support to restrict relative movement between the tip and the stent support,wherein the braided stent is arranged on the distal portion of the stent support in the loaded state, and the proximal portion of the stent support extends into the inner sleeve, andwherein a locking mechanism is provided between the outer sleeve and the stent support, the locking mechanism restricting movement of the stent support relative to the outer sleeve to a predetermined maximum path of travel in the distal direction wherein the inner sleeve has a longitudinal slit through which a first limit stop connected to the outer sleeve protrudes into the inner sleeve, the limit stop limiting movement of the stent support relative to the outer sleeve in the distal direction to the maximum path of travel.
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Abstract
An insertion system with a self-expanding braided stent (11) for implantation in a blood vessel has an outer sleeve (12) with a distal end (14) and a proximal end. An inner sleeve (16) arranged in the outer sleeve (12) is displaceable relative to the latter and protrudes, with a handling section, from the proximal end of the outer sleeve (12). Moreover, at the distal end (15), there is a tip (18) which is securely connected to a stent support (24) on which the braided stent (11) is arranged in its loaded state. The stent support (24) is arranged to be displaceable relative to the inner sleeve (16).
39 Citations
19 Claims
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1. A delivery system for implanting a self-expanding braided stent into a blood vessel, comprising:
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an outer sleeve having a distal end and a proximal end, the outer sleeve contacting and holding the stent in a loaded state; an inner sleeve arranged within the outer sleeve and having a proximal portion that extends from the proximal end of the outer sleeve, the proximal portion comprising a handling portion, the inner sleeve being displaceable relative to the outer sleeve; a stent support comprising a proximal portion and a distal portion, and being displaceable relative to the inner sleeve; and a tip arranged at the distal end of the outer sleeve and fixed to the stent support to restrict relative movement between the tip and the stent support, wherein the braided stent is arranged on the distal portion of the stent support in the loaded state, and the proximal portion of the stent support extends into the inner sleeve, and wherein a locking mechanism is provided between the outer sleeve and the stent support, the locking mechanism restricting movement of the stent support relative to the outer sleeve to a predetermined maximum path of travel in the distal direction wherein the inner sleeve has a longitudinal slit through which a first limit stop connected to the outer sleeve protrudes into the inner sleeve, the limit stop limiting movement of the stent support relative to the outer sleeve in the distal direction to the maximum path of travel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification