US5154725A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Easily exchangeable catheter system
Assignee: Abbott Cardiovascular Systems Inc
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Filing: 1991-06-07
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Granted: 1992-10-13
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Expires: 2011-06-07
Abstract
Abstract A balloon dilatation catheter having a proximal tubular member formed of high strength materials such as stainless steel with an inner lumen for directing inflation fluid through the tubular member, a double lumen distal member which is secured to the distal end of the proximal tubular member with one of the lumens in the distal member being in fluid communication and axially aligned with the inner lumen of the proximal tubular member and the other lumen which is generally offset and parallel to the first inner lumen being adapted to slidbly receive a guidewire and an inflatable balloon on the distal member. A proximal port in the proximal end of the second inner lumen is spaced at least 10 cm but not more than about 40 cm proximally from a distal port in the distal end of the catheter.
Inventors
- 👤 Andrew R. Leopold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:23
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/10; A61M25/104; A61M25/01; A61M2025/0183; A61M2025/1043; A61M2025/1079
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
182 words
A readily exchangeable balloon dilatation catheter comprising: a) an elongated, high strength proximal tubular member which is formed of hypotubing, which has proximal and distal ends, and which has an inner lumen extending therein; b) a flexible distal tubular member which is secured to the distal end of the high strength proximal tubular member, which has an inflation lumen extending longitudinally therein with a proximal end in fluid communication with the inner lumen of the high strength proximal tubular member and a distal end with an inflation port therein, and which has a guidewire receiving lumen extending longitudinally between a first guidewire port in the proximal end thereof and a distal guidewire port in the distal end thereof, the proximal guidewire port being spaced longitudinally at least about 10 cm from the distal port in the distal end; and c) an inflatable, relatively inelastic balloon on the distal tubular member having a distal end sealingly bonded about the distal end of the distal tubular member and an interior which is in fluid communication with the inflation lumen through the inflation port thereof.
Claim 2
Dependent Claim
182 words
A readily exchangeable balloon dilatation catheter comprising: a) an elongated, high strength proximal tubular member which is formed of hypotubing, which has proximal and distal ends, and which has an inner lumen extending therein; b) a flexible distal tubular member which is secured to the distal end of the high strength proximal tubular member, which has an inflation lumen extending longitudinally therein with a proximal end in fluid communication with the inner lumen of the high strength proximal tubular member and a distal end with an inflation port therein, and which has a guidewire receiving lumen extending longitudinally between a first guidewire port in the proximal end thereof and a distal guidewire port in the distal end thereof, the proximal guidewire port being spaced longitudinally at least about 10 cm from the distal port in the distal end; and c) an inflatable, relatively inelastic balloon on the distal tubular member having a distal end sealingly bonded about the distal end of the distal tubular member and an interior which is in fluid communication with the inflation lumen through the inflation port thereof.
Claim 3
Dependent Claim
27 words
The dilatation catheter of claim 1 wherein the distal end of the proximal tubular member is truncated and interfits into the inflation lumen in the distal member.
Claim 4
Dependent Claim
43 words
The dilatation catheter of claim 2 wherein the distal tubular member has a wall which defines in part the guidewire receiving inner lumen and which has a slit therein extending from the proximal guidewire port to a location proximally adjacent the inflatable balloon.
Claim 5
Dependent Claim
32 words
The dilatation catheter of claim 1 wherein the hypotubing of the proximal tubular member is formed from a material selected from the group consisting of stainless steel and a superelastic Nitinol alloy.
Claim 6
Dependent Claim
20 words
The dilatation catheter of claim 1 wherein the hypotubing of the proximal tubular member is provided with a plastic jacket.
Claim 7
Dependent Claim
26 words
The dilatation catheter of claim 1 wherein the proximal guidewire port is space proximally from the distal guidewire port a distance not greater than 40 cm.
Claim 8
Dependent Claim
28 words
The dilatation catheter of claim 1 wherein the proximal guidewire port is spaced proximally from the distal guidewire port a distance of about 15 to about 30 cm.
Claim 9
Dependent Claim
37 words
The dilatation catheter of claim 1 wherein the proximal tubular member is tapered in a distal portion thereof proximal to the distal tubular member to provide increased flexibility in the distal portion of the proximal tubular member.
Claim 10
Dependent Claim
40 words
The dilatation catheter of claim 1 wherein the transverse cross sectional area of the inner lumen of the proximal tubular member is essentially the same as the transverse cross sectional area of the inflation lumen in the distal tubular member.
Claim 11
Dependent Claim
27 words
The dilatation catheter of claim 1 wherein the inflation lumen of the proximal tubular member is axially aligned with the inflation lumen within the distal tubular member.
Claim 12
Dependent Claim
16 words
The dilatation catheter of claim 1 wherein the transverse shape of the inflation lumen is D-shaped.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-10-13 | 1996-04-13 | 1996-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-10-13 | 2000-04-13 | 2000-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-10-13 | 2004-04-13 | 2004-10-13 | $7700.00 | Window Closed / Lapsed |