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US 8,152,830 B2Granted
Rotating stent delivery system for side branch access and protection and method of using same
AssigneeBoston Scientific Scimed, Inc.
InventorDarrel C. Gumm
Life of this patent
Estimating the term…
Abstract
A system for treatment of a vessel bifurcation and its method of use comprises a catheter having a catheter shaft, a portion of which is characterized as an axle about which a rotatable assembly is disposed and rotatable thereabout. The system employs a series of lumens, openings and/or ports to provide a balloon mounted on the rotatable assembly with fluid communication to the catheter shaft.
Claims18
A medical device, comprising:
- an elongate catheter shaft including a proximal region and a distal region, the distal region including an axle region, the axle region being longitudinally positioned between a first portion of the distal region and a second portion of the distal region, the first portion having a first diameter, the second portion having a second diameter, and the axle region having a third diameter, wherein the third diameter is less than the first diameter and the second diameter, the elongate catheter shaft defining an inflation lumen therethrough, wherein the axle region defines a fluid opening in fluid communication with the inflation lumen;
- and
- a rotatable assembly mounted about the axle region of the elongate catheter shaft, wherein the rotatable assembly is rotatable relative to the elongate catheter shaft, the rotatable assembly including a barrel and a balloon, the barrel being rotatable about the elongate catheter shaft and having an outer diameter that is substantially the same as at least one of the first diameter and the second diameter, the balloon disposed about the barrel, the balloon including a proximal waist bonded adjacent to a proximal end of the barrel and a distal waist bonded adjacent to a distal end of the barrel, the balloon being expandable between a reduced state and an expanded state, wherein the barrel defines at least one fluid port in fluid communication with an interior of the balloon, the at least one fluid port being in fluid communication with the inflation lumen via the fluid opening of the axle region.
A medical device, comprising:
- an elongate catheter shaft including a proximal region and a distal region, the distal region including an axle region, the axle region being longitudinally positioned between a first portion of the distal region and a second portion of the distal region, the first portion having a first diameter, the second portion having a second diameter, and the axle region having a third diameter, wherein the third diameter is less than the first diameter and the second diameter, the elongate catheter shaft defining an inflation lumen therethrough, wherein the axle region defines a first opening in fluid communication with the inflation lumen;
- a barrel rotatably disposed about the axle region of the elongate shaft, the barrel defining a plurality of second openings in fluid communication with the first opening of the axle region;
- and
- a balloon disposed about the barrel, the balloon being in fluid communication with the inflation lumen of the elongate catheter shaft via the first opening and the plurality of second openings.
1 more element
A medical device, comprising:
- an elongate catheter shaft including a proximal region and a distal region, the distal region including an axle region, the axle region being longitudinally positioned between a first portion of the distal region and a second portion of the distal region, the first portion having a first diameter, the second portion having a second diameter, and the axle region having a third diameter, wherein the first diameter and the second diameter are substantially the same, wherein the third diameter is less than the first diameter and the second diameter, the elongate catheter shaft defining an inflation lumen therethrough, wherein the axle region defines a first opening in fluid communication with the inflation lumen, wherein the elongate catheter shaft defines a primary guidewire lumen for passage of a primary guidewire therethrough;
- a tubular barrel rotatably disposed about the axle region of the elongate shaft, the tubular barrel defining a second opening in fluid communication with the first opening of the axle region, wherein the tubular barrel has a fourth diameter that is substantially the same as at least one of the first diameter and the third diameter;
- a balloon disposed about the barrel, the balloon being in fluid communication with the inflation lumen of the elongate catheter shaft via the first opening and the second opening;
- a secondary guidewire housing defining a secondary guidewire lumen, the secondary guidewire housing engaged to a portion of the balloon.
1 more element
Dependencies are inferred from the claim text.