US5370616A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Balloon catheter with disial guide wire lumen
Assignee: Boston Scientific Scimed Inc
•
Filing: 1994-03-02
•
Granted: 1994-12-06
•
Expires: 2014-03-02
Abstract
Abstract An over-the-wire balloon dilatation catheter has a stainless steel hypotube catheter shaft, an intermediate sleeve section bonded to the shaft and a distal balloon section connected to the sleeve section. The sleeve section is formed from relatively flexible polymer materials and includes an inner core tube which defines a guide wire lumen extending only through a distal portion of the catheter (including its sleeve and balloon sections) to facilitate fast balloon catheter exchanges. A distal end of the hypotube shaft is crimped laterally and the core tube is nested and bonded within the crimp to provide a proximal outlet for the guide wire lumen. The hypotube shaft provides an inflation lumen for the balloon, with the inflation lumen being continued as an annular inflation lumen through the sleeve section where an outer sleeve is bonded about the core tube and extends from the distal end of the hypotube shaft to the balloon section. A kink-resistant coil structure extends distally from the distal end of the hypotube shaft to provide a gradual change in stiffness along the length of the catheter from the relatively stiff hypotube shaft to the relatively flexible distal portion of the catheter.
Inventors
- 👤 Peter T. Keith
- 👤 Charles L. Euteneuer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:56
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/10; A61M25/104; A61M25/01; A61M25/06; A61M25/0662; A61M25/0021; A61M25/0023; A61M25/0026; A61M2025/0034; A61M2025/0098; A61M2025/0183; A61M25/09; A61M2025/09191; A61M2025/1043; A61M2025/1056; A61M2025/1061; A61M2025/1079; A61M25/0029; A61M25/0032; A61M25/0043; A61M25/0054
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
253 words
A balloon dilatation catheter comprising: a first thin-walled, high strength, relatively inflexible tube having a longitudinal inflation lumen extending therethrough from a proximal end to a distal end, the first tube being formed from a proximal, relatively long stainless steel tube and a distal relatively short stainless steel tube bonded thereto, the outer diameter of the proximal tube being smaller than the outer diameter of the distal tube, and the distal tube having, at a distal end thereof, a longitudinal crimp extending laterally inwardly from one side of the distal tube with the crimp having a proximal transition region and a distal bonding region; a second relatively flexible core tube having a longitudinal guide wire lumen extending therethrough from a proximal end to a distal end, with the proximal end of the second tube being nested within the distal bonding region of the longitudinal crimp of the distal tube and bonded thereto so that the second tube extends distally from the first tube; and a balloon assembly having an elongated proximal waist segment, an intermediate expandable segment and a distal waist segment, the proximal segment extending over at least a distal portion of the distal bonding region and sealably affixed thereabout so that the inflation lumen is in fluid communication with an interior of the balloon assembly through the proximal segment, with the balloon assembly extending distally from the distal bonding region over the second tube to a second bonding region where the distal waist segment is sealably affixed about the second tube.
Claim 2
Dependent Claim
253 words
A balloon dilatation catheter comprising: a first thin-walled, high strength, relatively inflexible tube having a longitudinal inflation lumen extending therethrough from a proximal end to a distal end, the first tube being formed from a proximal, relatively long stainless steel tube and a distal relatively short stainless steel tube bonded thereto, the outer diameter of the proximal tube being smaller than the outer diameter of the distal tube, and the distal tube having, at a distal end thereof, a longitudinal crimp extending laterally inwardly from one side of the distal tube with the crimp having a proximal transition region and a distal bonding region; a second relatively flexible core tube having a longitudinal guide wire lumen extending therethrough from a proximal end to a distal end, with the proximal end of the second tube being nested within the distal bonding region of the longitudinal crimp of the distal tube and bonded thereto so that the second tube extends distally from the first tube; and a balloon assembly having an elongated proximal waist segment, an intermediate expandable segment and a distal waist segment, the proximal segment extending over at least a distal portion of the distal bonding region and sealably affixed thereabout so that the inflation lumen is in fluid communication with an interior of the balloon assembly through the proximal segment, with the balloon assembly extending distally from the distal bonding region over the second tube to a second bonding region where the distal waist segment is sealably affixed about the second tube.
Claim 3
Dependent Claim
222 words
In an elongate dilatation catheter of the type that has a first relatively long proximal shaft section having a distal end, a second shorter distal shaft section disposed distally of the first shaft section, an inflatable balloon attached to the distal end of the second shaft section wherein the first and second shaft sections have an inflation lumen defined therethrough so that the balloon is in fluid communication with the inflation lumen, and wherein the catheter is of the type that can be slidably moved along a guide wire which can extend through a guide wire lumen of the catheter, the guide wire lumen being separate from the inflation lumen and extending from a distal guide wire lumen opening at the distal end of the catheter to a proximal guide wire lumen opening adjacent to the proximal end of the second shaft section so that the guide wire lumen is shorter than the inflation lumen, an improvement comprising: the first shaft section of the catheter being defined by a relatively rigid metallic tube having a portion of the inflation lumen extending longitudinally therethrough; and a transition member defined by a second metallic tube connected to the distal end of the first shaft section and the proximal end of the second shaft section and having a portion of the inflation lumen extending therethrough.
Claim 4
Dependent Claim
222 words
In an elongate dilatation catheter of the type that has a first relatively long proximal shaft section having a distal end, a second shorter distal shaft section disposed distally of the first shaft section, an inflatable balloon attached to the distal end of the second shaft section wherein the first and second shaft sections have an inflation lumen defined therethrough so that the balloon is in fluid communication with the inflation lumen, and wherein the catheter is of the type that can be slidably moved along a guide wire which can extend through a guide wire lumen of the catheter, the guide wire lumen being separate from the inflation lumen and extending from a distal guide wire lumen opening at the distal end of the catheter to a proximal guide wire lumen opening adjacent to the proximal end of the second shaft section so that the guide wire lumen is shorter than the inflation lumen, an improvement comprising: the first shaft section of the catheter being defined by a relatively rigid metallic tube having a portion of the inflation lumen extending longitudinally therethrough; and a transition member defined by a second metallic tube connected to the distal end of the first shaft section and the proximal end of the second shaft section and having a portion of the inflation lumen extending therethrough.
Claim 5
Dependent Claim
24 words
The improved catheter of claim 2 wherein the second metallic tube extends at least in part distally of the proximal guide wire lumen opening.
Claim 6
Dependent Claim
20 words
The improved catheter of claim 2 wherein the second metal tube extends into a proximal end of the distal shaft.
Claim 7
Dependent Claim
21 words
The improved catheter of claim 2 wherein the proximal shaft section has a smaller outer diameter than the distal shaft section.
Claim 8
Dependent Claim
120 words
An intravascular catheter comprising: a first, main shaft section defined by a metallic tube, the main shaft section having a proximal end and a distal end; a balloon; a second, plastic shaft section connected between the distal end of the main shaft section and the balloon; the shaft sections having an inflation lumen defined therethrough to provide inflation pressure to the balloon; a guide wire lumen defined through the plastic shaft section and the balloon, the guide wire lumen having a proximal guide wire lumen opening and a distal guide wire lumen opening; and a metallic transition tube connected to the main shaft section and extending distally into the plastic shaft section and across the proximal guide wire lumen opening.
Claim 9
Dependent Claim
120 words
An intravascular catheter comprising: a first, main shaft section defined by a metallic tube, the main shaft section having a proximal end and a distal end; a balloon; a second, plastic shaft section connected between the distal end of the main shaft section and the balloon; the shaft sections having an inflation lumen defined therethrough to provide inflation pressure to the balloon; a guide wire lumen defined through the plastic shaft section and the balloon, the guide wire lumen having a proximal guide wire lumen opening and a distal guide wire lumen opening; and a metallic transition tube connected to the main shaft section and extending distally into the plastic shaft section and across the proximal guide wire lumen opening.
Claim 10
Dependent Claim
163 words
In an elongate dilatation catheter of the type that can be slidably moved along a guide wire that can extend past a distal end of the catheter, wherein the guide wire is received in a guide wire lumen of the catheter, the guide wire lumen extending from a guide wire lumen inlet to a guide wire lumen outlet, the dilatation catheter including an inflatable balloon and an inflation lumen extending through the catheter separate from the guide wire lumen, the improvement comprising: a metallic shaft tube defining a relatively rigid proximal shaft section of the catheter; a relatively more flexible distal shaft section of the catheter; a metallic transition tube to provide a transition between the metallic shaft tube and the distal shaft section of the catheter; and the guide wire lumen inlet being spaced distally from the distal end of the metallic shaft tube and the metallic transition tube extending distally from the metallic shaft tube past the guide wire lumen inlet.
Claim 11
Dependent Claim
163 words
In an elongate dilatation catheter of the type that can be slidably moved along a guide wire that can extend past a distal end of the catheter, wherein the guide wire is received in a guide wire lumen of the catheter, the guide wire lumen extending from a guide wire lumen inlet to a guide wire lumen outlet, the dilatation catheter including an inflatable balloon and an inflation lumen extending through the catheter separate from the guide wire lumen, the improvement comprising: a metallic shaft tube defining a relatively rigid proximal shaft section of the catheter; a relatively more flexible distal shaft section of the catheter; a metallic transition tube to provide a transition between the metallic shaft tube and the distal shaft section of the catheter; and the guide wire lumen inlet being spaced distally from the distal end of the metallic shaft tube and the metallic transition tube extending distally from the metallic shaft tube past the guide wire lumen inlet.
Claim 12
Dependent Claim
217 words
In an elongated dilatation catheter of the type that can be slidably moved along a guide wire that can extend past the distal end of the catheter, wherein the guide wire is received in a guide wire lumen of the catheter, the guide wire lumen extending from a distal guide wire opening to a proximal guide wire lumen opening located closer to the distal end of the catheter than the proximal end, the dilatation catheter including an inflation lumen extending through the catheter separate from the guide wire lumen, an improvement comprising: a first proximal shaft section being a relatively rigid metallic tube having a proximal end and a distal end, and the first shaft section having a portion of the inflation lumen therethrough; a second shaft section having a proximal end a distal end, the second shaft section being operably connected to the first shaft section and extending distally of the first shaft section, the second shaft section being relatively more flexible than the first shaft section, and the second shaft section having a portion of the inflation lumen therethrough; and a metallic transition tube operably connected to the distal end of the first shaft section and the proximal end of the second shaft, and the transition tube having a portion of the inflation lumen therethrough.
Claim 13
Dependent Claim
217 words
In an elongated dilatation catheter of the type that can be slidably moved along a guide wire that can extend past the distal end of the catheter, wherein the guide wire is received in a guide wire lumen of the catheter, the guide wire lumen extending from a distal guide wire opening to a proximal guide wire lumen opening located closer to the distal end of the catheter than the proximal end, the dilatation catheter including an inflation lumen extending through the catheter separate from the guide wire lumen, an improvement comprising: a first proximal shaft section being a relatively rigid metallic tube having a proximal end and a distal end, and the first shaft section having a portion of the inflation lumen therethrough; a second shaft section having a proximal end a distal end, the second shaft section being operably connected to the first shaft section and extending distally of the first shaft section, the second shaft section being relatively more flexible than the first shaft section, and the second shaft section having a portion of the inflation lumen therethrough; and a metallic transition tube operably connected to the distal end of the first shaft section and the proximal end of the second shaft, and the transition tube having a portion of the inflation lumen therethrough.
Claim 14
Dependent Claim
23 words
The improved catheter of claim 8, wherein the transition tube extends at least in part distally of the guide wire lumen proximal opening.
References Cited (Backward Citations)
US2687131A
Cited
US2936760A
Cited
US3225762A
Cited
US4289128A
Cited
US4468224A
Cited
US4662368A
Cited
US4705507A
Cited
SU1251914A1
Cited
US4597755A
Cited
US4762129A
Cited
US4762129B1
Cited
US4917088A
Cited
US5102390A
Cited
US4798598A
Cited
US4846174A
Cited
US4771777A
Cited
US4976720A
Cited
US4748982A
Cited
US4988356A
Cited
US4824435A
Cited
US4820349A
Cited
US4881547A
Cited
US5050606A
Cited
US4906241A
Cited
US4994032A
Cited
US4921478A
Cited
US4943278A
Cited
US4944745A
Cited
US4838268A
Cited
US4896670A
Cited
US4940062A
Cited
US4998917A
Cited
EP0344530A1
Cited
US4877031A
Cited
US4998923A
Cited
EP0365993A1
Cited
US5057120A
Cited
EP0368523A2
Cited
US5035705A
Cited
US5035686A
Cited
EP0380873B1
Cited
US4946466A
Cited
US4928693A
Cited
US5047045A
Cited
US5032113A
Cited
US5042985A
Cited
US4953553A
Cited
US5061273A
Cited
US4976690A
Cited
US5180367A
Cited
US5034001A
Cited
US5169386A
Cited
US5176637A
Cited
US5102403A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-12-05 | 1998-06-06 | 1998-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-12-05 | 2002-06-06 | 2002-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-12-05 | 2006-06-06 | 2006-12-06 | $7700.00 | Window Closed / Lapsed |