Balloon catheter and stent delivery device

Claim 2

A balloon catheter comprising: a tubular shaft having a proximal end and a distal end, an elongated dilatation balloon with proximal and distal ends, said balloon being mounted on said tubular shaft in the vicinity of the distal end thereof, a first means secured on the tubular shaft for preventing expansion of balloon segments and a second means on the first means cooperating with a third means on the tubular shaft for adjustably fixing the first means on the tubular shaft at different longitudinal positions wherein the tubular shaft comprises a guidewire lumen with an entry for the guidewire distal of the balloon and an exit for the guidewire distal of the proximal end of the tubular shaft and wherein the first means for preventing expansion of balloon segments is either distal of the exit for the guidewire if said exit is proximal of the balloon or proximal of the exit for the guidewire if said exit is distal of the balloon.

Claim 3

A balloon catheter according to claim 1, wherein the first means for preventing expansion of balloon segments is removably attached to the tubular shaft.

Claim 4

A balloon catheter according to claim 1, wherein the first means for preventing expansion of balloon segments is slidably attached to the tubular shaft.

Claim 5

A balloon catheter according to claim 1, wherein the first means for preventing expansion of balloon segments comprise a sleeve having proximal and distal ends one of which is surrounding a portion of the tubular shaft in the vicinity of the balloon and the other of which is surrounding a portion of the balloon.

Claim 6

A stent delivery system for a balloon expandable stent comprising: a balloon catheter with a tubular shaft having a proximal end and a distal end, and an elongated dilatation balloon with proximal and distal ends, said balloon being mounted on said tubular shaft in the vicinity of the distal end thereof, a first means secured on the tubular shaft for preventing expansion of balloon segments and a second means on the first means cooperating with a third means on the tubular shaft for adjustably fixing the first means on the tubular shaft at different longitudinal positions wherein the tubular shaft comprises a guidewire lumen with an entry for the guidewire distal of the balloon and an exit for the guidewire distal of the proximal end of the tubular shaft, and wherein the first means for preventing expansion of balloon segments is either distal of the exit for the guidewire if said exit is proximal of the balloon or proximal of the exit for the guidewire if said exit is distal of the balloon.

Claim 7

A stent delivery system for a balloon expandable stent comprising: a balloon catheter with a tubular shaft having a proximal end and a distal end, and an elongated dilatation balloon with proximal and distal ends, said balloon being mounted on said tubular shaft in the vicinity of the distal end thereof, a first means secured on the tubular shaft for preventing expansion of balloon segments and a second means on the first means cooperating with a third means on the tubular shaft for adjustably fixing the first means on the tubular shaft at different longitudinal positions wherein the tubular shaft comprises a guidewire lumen with an entry for the guidewire distal of the balloon and an exit for the guidewire distal of the proximal end of the tubular shaft, and wherein the first means for preventing expansion of balloon segments is either distal of the exit for the guidewire if said exit is proximal of the balloon or proximal of the exit for the guidewire if said exit is distal of the balloon.

Claim 8

A stent delivery system according to claim 5, wherein the first means for preventing expansion of balloon segments is removably attached to the tubular shaft.

Claim 9

A stent delivery system according to claim 5, wherein the first means for preventing expansion of balloon segments is slidably attached to the tubular shaft.

Claim 10

A stent delivery system according to claim 5, wherein the means for preventing expansion of balloon segments comprise a sleeve having proximal and distal ends one of which is surrounding a portion of the tubular shaft in the vicinity of the balloon and the other of which is surrounding a portion of the balloon.

Claim 11

A balloon catheter comprising: a tubular shaft having a proximal end and a distal end, an elongated dilatation balloon with proximal and distal ends, said balloon being mounted on said tubular shaft in the vicinity of the distal end thereof, and means secured on the tubular shaft for preventing expansion of balloon segments wherein the tubular shaft comprises a guidewire lumen with an entry for the guidewire distal of the balloon and an exit for the guidewire distal of the proximal end of the tubular shaft and wherein the means for preventing expansion of balloon segments are attached to the tubular shaft either distal of the exit for the guidewire if said exit is proximal of the balloon or proximal of the exit for the guidewire if said exit is distal of the balloon; the means for preventing expansion of balloon segments comprise a sleeve having proximal and distal ends one of which is surrounding a portion of the tubular shaft in the vicinity of the balloon and the other of which is surrounding a portion of the balloon; and latch means on one of the sleeve or shaft cooperating with catch means on the other of the sleeve or shaft for attaching one end of the sleeve to the portion of the tubular shaft surrounded by that end of the sleeve.

Claim 12

A balloon catheter comprising: a tubular shaft having a proximal end and a distal end, an elongated dilatation balloon with proximal and distal ends, said balloon being mounted on said tubular shaft in the vicinity of the distal end thereof, and means secured on the tubular shaft for preventing expansion of balloon segments wherein the tubular shaft comprises a guidewire lumen with an entry for the guidewire distal of the balloon and an exit for the guidewire distal of the proximal end of the tubular shaft and wherein the means for preventing expansion of balloon segments are attached to the tubular shaft either distal of the exit for the guidewire if said exit is proximal of the balloon or proximal of the exit for the guidewire if said exit is distal of the balloon; the means for preventing expansion of balloon segments comprise a sleeve having proximal and distal ends one of which is surrounding a portion of the tubular shaft in the vicinity of the balloon and the other of which is surrounding a portion of the balloon; and latch means on one of the sleeve or shaft cooperating with catch means on the other of the sleeve or shaft for attaching one end of the sleeve to the portion of the tubular shaft surrounded by that end of the sleeve.

Claim 13

A balloon catheter comprising: a tubular shaft having a proximal end and a distal end, an elongated dilatation balloon with proximal and distal ends, said balloon being mounted on said tubular shaft in the vicinity of the distal end thereof, and means secured on the tubular shaft for preventing expansion of balloon segments wherein the tubular shaft comprises a guidewire lumen with an entry for the guidewire distal of the balloon and an exit for the guidewire distal of the proximal end of the tubular shaft and wherein the means for preventing expansion of balloon segments are attached to the tubular shaft either distal of the exit for the guidewire if said exit is proximal of the balloon or proximal of the exit for the guidewire if said exit is distal of the balloon; and elastic balloon jacket means for enclosing a portion of the balloon, said jacket means having a proximal end and a distal end, and wherein one of said ends is disposed on the tubular shaft and the other of said ends is disposed on the means for preventing expansion of balloon segments.

Claim 14

A balloon catheter comprising: a tubular shaft having a proximal end and a distal end, an elongated dilatation balloon with proximal and distal ends, said balloon being mounted on said tubular shaft in the vicinity of the distal end thereof, and means secured on the tubular shaft for preventing expansion of balloon segments wherein the tubular shaft comprises a guidewire lumen with an entry for the guidewire distal of the balloon and an exit for the guidewire distal of the proximal end of the tubular shaft and wherein the means for preventing expansion of balloon segments are attached to the tubular shaft either distal of the exit for the guidewire if said exit is proximal of the balloon or proximal of the exit for the guidewire if said exit is distal of the balloon; and elastic balloon jacket means for enclosing a portion of the balloon, said jacket means having a proximal end and a distal end, and wherein one of said ends is disposed on the tubular shaft and the other of said ends is disposed on the means for preventing expansion of balloon segments.

Claim 15

A stent delivery system for a balloon expandable stent comprising: a balloon catheter with a tubular shaft having a proximal end and a distal end, and an elongated dilatation balloon with proximal and distal ends, said balloon being mounted on said tubular shaft in the vicinity of the distal end thereof wherein the tubular shaft comprises a guidewire lumen with an entry for the guidewire distal of the balloon and an exit for the guidewire distal of the proximal end of the tubular shaft, and wherein means for preventing expansion of balloon segments are attached to the tubular shaft either distal of the exit for the guidewire if said exit is proximal of the balloon or proximal of the exit for the guidewire if said exit is distal of the balloon; the means for preventing expansion of balloon segments comprise a sleeve having proximal and distal ends one of which is surrounding a portion of the tubular shaft in the vicinity of the balloon and the other of which is surrounding a portion of the balloon; and latch means on one of the sleeve or shaft cooperating with catch means on the other of the sleeve or shaft for attaching one end of the sleeve to the portion of the tubular shaft surrounded by that end of the sleeve.

Claim 16

A stent delivery system for a balloon expandable stent comprising: a balloon catheter with a tubular shaft having a proximal end and a distal end, and an elongated dilatation balloon with proximal and distal ends, said balloon being mounted on said tubular shaft in the vicinity of the distal end thereof wherein the tubular shaft comprises a guidewire lumen with an entry for the guidewire distal of the balloon and an exit for the guidewire distal of the proximal end of the tubular shaft, and wherein means for preventing expansion of balloon segments are attached to the tubular shaft either distal of the exit for the guidewire if said exit is proximal of the balloon or proximal of the exit for the guidewire if said exit is distal of the balloon; the means for preventing expansion of balloon segments comprise a sleeve having proximal and distal ends one of which is surrounding a portion of the tubular shaft in the vicinity of the balloon and the other of which is surrounding a portion of the balloon; and latch means on one of the sleeve or shaft cooperating with catch means on the other of the sleeve or shaft for attaching one end of the sleeve to the portion of the tubular shaft surrounded by that end of the sleeve.

Claim 17

A stent delivery system for a balloon expandable stent comprising: a balloon catheter with a tubular shaft having a proximal end and a distal end, and an elongated dilatation balloon with proximal and distal ends, said balloon being mounted on said tubular shaft in the vicinity of the distal end thereof wherein the tubular shaft comprises a guidewire lumen with an entry for the guidewire distal of the balloon and an exit for the guidewire distal of the proximal end of the tubular shaft, and wherein means for preventing expansion of balloon segments are attached to the tubular shaft either distal of the exit for the guidewire if said exit is proximal of the balloon or proximal of the exit for the guidewire if said exit is distal of the balloon; and elastic balloon jacket means for enclosing a portion of the balloon, said jacket means having a proximal end and a distal end, and wherein one of said ends is disposed on the tubular shaft and the other of said ends is disposed on the means for preventing expansion of balloon segments.

Claim 18

A stent delivery system for a balloon expandable stent comprising: a balloon catheter with a tubular shaft having a proximal end and a distal end, and an elongated dilatation balloon with proximal and distal ends, said balloon being mounted on said tubular shaft in the vicinity of the distal end thereof wherein the tubular shaft comprises a guidewire lumen with an entry for the guidewire distal of the balloon and an exit for the guidewire distal of the proximal end of the tubular shaft, and wherein means for preventing expansion of balloon segments are attached to the tubular shaft either distal of the exit for the guidewire if said exit is proximal of the balloon or proximal of the exit for the guidewire if said exit is distal of the balloon; and elastic balloon jacket means for enclosing a portion of the balloon, said jacket means having a proximal end and a distal end, and wherein one of said ends is disposed on the tubular shaft and the other of said ends is disposed on the means for preventing expansion of balloon segments.