Catheter device
First Claim
1. A catheter having a shaft and an implant mounted on a distal end of the shaft wherein the shaft comprises:
- an adapter block comprising a first shaft lumen and a second shaft lumen;
a first shaft element having a distal end within the first shaft lumen;
a second shaft element having a proximal end within the second shaft lumen;
a sheath that lies over the implant having a proximal end distal of the adapter block;
an annulus disposed outside the second shaft element and inside the sheath;
a pull wire connected to the annulus; and
a telescopic tube having a distal end connected to the proximal end of the sheath.
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Accused Products
Abstract
A catheter device having a shaft that extends from a proximal end to a distal end to carry on its distal end a self-expanding implant for intraluminal advance on a guidewire and delivery of the implant to an implant site by proximal withdrawal of a sheath that lies radially outside the implant in the catheter, the catheter including a first shaft element to pull the sheath proximally and a second shaft element to push the implant distally to prevent the implant moving proximally with the sheath when the sheath is pulled proximally, wherein the second shaft element carries a stopper for abutting the implant, the stopper including proximal and distal portions having different radiopacities.
77 Citations
17 Claims
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1. A catheter having a shaft and an implant mounted on a distal end of the shaft wherein the shaft comprises:
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an adapter block comprising a first shaft lumen and a second shaft lumen; a first shaft element having a distal end within the first shaft lumen; a second shaft element having a proximal end within the second shaft lumen; a sheath that lies over the implant having a proximal end distal of the adapter block; an annulus disposed outside the second shaft element and inside the sheath; a pull wire connected to the annulus; and a telescopic tube having a distal end connected to the proximal end of the sheath. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A catheter having a shaft and an implant mounted on a distal end of the shaft wherein the shaft comprises:
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an adapter block comprising a first shaft lumen and a second shaft lumen; a first shaft element having a distal end within the first shaft lumen and a proximal end disposed at a handle; a second shaft element having a proximal end within the second shaft lumen; a sheath that lies over the implant having a proximal end distal of the adapter block; an annulus disposed outside the second shaft element, disposed inside the sheath, and extending proximally of the proximal end of the sheath; a pull wire disposed in the first shaft element and connected to the annulus; a telescopic tube having a distal end connected to the proximal end of the sheath; a flushing tube connected to a proximal end of the telescopic tube; a guider block comprising a guider block lumen and a guider block guidewire lumen; and a band disposed around the flushing tube connecting the flushing tube to the guider block, wherein; a distal bend of the second shaft element is proximal of the annulus, a proximal bend of the second shaft element is distal of the adapter block, and the guider block is disposed on the first shaft element.
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Specification