§
Luxuse
Patent Intelligence
Sign In
← Back to Patent Explorer
US5882336A Expired / Lapsed US ⏱️ 0.0 years remaining

Dilation catheter

Assignee: Individual
•
Filing: 1997-02-28
•
Granted: 1999-03-16
•
Expires: 2017-02-28
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract A dilation catheter for use in performing angioplasty procedures. The catheter includes a relatively long catheter shaft which has two lumens. A relatively short guidewire receiving tube is thermally bonded to the distal end of the shaft, with its lumen approximately aligned with one of the lumens of the catheter shaft and a stiffening wire positioned therein. A dilation balloon, preformed with a shape that enables it to be used in an offset configuration, is thermally bonded to the distal and proximal ends of the tube, with its lumen aligned with the remaining lumen of the catheter shaft. The balloon and tube together define channels for the perfusion of blood past the balloon, which channels remain open even when the balloon bears against the tube during the inflation thereof.

Inventors

  • 👤 Jaroslav Janacek

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-22 22:54
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/10; A61M25/1027; A61M25/1034; A61M25/104; A61M25/0043; A61M2025/0063; A61M25/01; A61M2025/0183; A61M2025/1043; A61M2025/1095

Claims Analysis

Total Claims: 19
Claim 1
Independent Claim 203 words
A process for manufacturing a catheter including an inflatable balloon, the process comprising steps of: a) providing an elongated tubular member including proximal and distal ends, the tubular member including an inflation lumen and a guidewire lumen, the guidewire lumen extending proximally from the tubular member distal end and adapted to receive a guidewire; b) providing a balloon located adjacent the tubular member distal end, the inflation lumen in fluid communication with the balloon for inflating the balloon; c) positioning a stiffening wire in the tubular member, the stiffening wire extending over a portion of the length of the catheter and having a distal end; d) forming a guidewire port in the tubular member intermediate the tubular member proximal and distal ends to provide an opening into the guidewire lumen for feeding a guidewire into the guidewire lumen of the tubular member in sliding relationship, wherein the distal end of the stiffening wire is disposed at the guidewire port such that the stiffening wire extends proximally from the guidewire port and stiffens a portion of the catheter extending proximally to said guidewire port and inserting a guidewire into the guidewire lumen stiffens a portion of the catheter extending distally of said guidewire port.
Claim 2
Dependent Claim 203 words
A process for manufacturing a catheter including an inflatable balloon, the process comprising steps of: a) providing an elongated tubular member including proximal and distal ends, the tubular member including an inflation lumen and a guidewire lumen, the guidewire lumen extending proximally from the tubular member distal end and adapted to receive a guidewire; b) providing a balloon located adjacent the tubular member distal end, the inflation lumen in fluid communication with the balloon for inflating the balloon; c) positioning a stiffening wire in the tubular member, the stiffening wire extending over a portion of the length of the catheter and having a distal end; d) forming a guidewire port in the tubular member intermediate the tubular member proximal and distal ends to provide an opening into the guidewire lumen for feeding a guidewire into the guidewire lumen of the tubular member in sliding relationship, wherein the distal end of the stiffening wire is disposed at the guidewire port such that the stiffening wire extends proximally from the guidewire port and stiffens a portion of the catheter extending proximally to said guidewire port and inserting a guidewire into the guidewire lumen stiffens a portion of the catheter extending distally of said guidewire port.
Claim 3
Dependent Claim 36 words
A process according to claim 1, further comprising the step of inserting a guidewire into the guidewire lumen, wherein the stiffening wire is secured within the tubular member so as to be collinear with the guidewire.
Claim 4
Dependent Claim 101 words
A process according to claim 1, wherein the step of providing an elongated tubular member includes forming the tubular member with a stiffening wire lumen, positioning the stiffening wire in the stiffening wire lumen and wherein a portion of the tubular member defining the guidewire lumen comprises a separate guidewire tube extending distally from a portion of the tubular member including the stiffening wire lumen a proximal end of the guidewire tube attached to a distal end of the portion of the tubular member including the stiffening wire such that the guidewire lumen is longitudinally aligned with the stiffening wire lumen.
Claim 5
Dependent Claim 63 words
A process according to claim 3, wherein the distal end of the portion of the tubular member including the stiffening wire has a stepped portion and the proximal end of the guidewire tube is attached to the stepped portion such that the guidewire tube extends beyond the stepped portion and said guidewire port is formed in said proximal end of the guidewire tube.
Claim 6
Dependent Claim 41 words
A process according to claim 4, wherein the stepped portion at the distal end of the portion of the tubular member including the guidewire tube includes a trough and the proximal end of the guidewire tube is disposed in said trough.
Claim 7
Dependent Claim 34 words
A process according to claim 3, wherein a proximal end of the balloon is secured to a distal end of a portion of the tubular member defining the inflation lumen in an overlapping manner.
Claim 8
Dependent Claim 34 words
A process according to claim 3, wherein a proximal end of the balloon is secured to a distal end of a portion of the tubular member defining the inflation lumen in an abutting manner.
Claim 9
Dependent Claim 64 words
A process according to claim 3, wherein a proximal end of the balloon is secured to a distal end of a portion of the tubular member defining the inflation lumen and the proximal end of the guidewire tube overlaps at least portions of the distal end of the portion of the tubular member defining the inflation lumen and the proximal end of the balloon.
Claim 10
Dependent Claim 25 words
A process according to claim 3, wherein a distal end of the stiffening wire is sealed within the stiffening wire lumen of the tubular member.
Claim 11
Dependent Claim 78 words
The process according to claim 3 wherein a proximal end and a distal end the balloon are thermally bonded to the guidewire tube and a central section of the balloon is unattached to the guidewire tube and further wherein the balloon is shaped such that the central section of the balloon contacts the guidewire tube when the balloon is inflated within a patient, but bows away from the guidewire tube when the balloon is inflated outside the patient.
Claim 12
Dependent Claim 160 words
A process for producing a catheter comprising steps of: a) providing an elongated shaft including a first lumen and a second lumen, each of the first and second lumens having a proximal end and a distal end; b) providing a balloon having a proximal end, a distal end and an inflatable portion; c) securing the balloon to the shaft such that the first lumen of the shaft communicates with the inflatable portion of the balloon; d) providing a stiffening wire having a proximal end and a distal end; e) securing the stiffening wire within the second lumen; f) providing a guidewire-receiving tube defining a guidewire lumen extending proximally from a distal end of the tube, the tube further having a port leading to the guidewire lumen for receiving a guidewire; g) securing the guidewire-receiving tube to the shaft such that the distal end of the stiffening wire is disposed at the port of the guidewire-receiving tube and extends proximally therefrom.
Claim 13
Dependent Claim 160 words
A process for producing a catheter comprising steps of: a) providing an elongated shaft including a first lumen and a second lumen, each of the first and second lumens having a proximal end and a distal end; b) providing a balloon having a proximal end, a distal end and an inflatable portion; c) securing the balloon to the shaft such that the first lumen of the shaft communicates with the inflatable portion of the balloon; d) providing a stiffening wire having a proximal end and a distal end; e) securing the stiffening wire within the second lumen; f) providing a guidewire-receiving tube defining a guidewire lumen extending proximally from a distal end of the tube, the tube further having a port leading to the guidewire lumen for receiving a guidewire; g) securing the guidewire-receiving tube to the shaft such that the distal end of the stiffening wire is disposed at the port of the guidewire-receiving tube and extends proximally therefrom.
Claim 14
Dependent Claim 21 words
A process according to claim 11, wherein the stiffening wire is generally collinear with the guidewire lumen of the guidewire-receiving tube.
Claim 15
Dependent Claim 22 words
A process according to claim 11, wherein the proximal and distal ends of the balloon are thermally bonded to the guidewire-receiving tube.
Claim 16
Dependent Claim 19 words
A process according to claim 13, wherein a central section of the balloon is unattached to the guidewire-receiving tube.
Claim 17
Dependent Claim 46 words
The process according to claim 14 wherein the balloon is shaped such that the central section of the balloon contacts the guidewire-receiving tube when the balloon is inflated within a patient, but bows away from the guidewire-receiving tube when the balloon is inflated outside the patient.
Claim 18
Dependent Claim 30 words
A process according to claim 11, wherein at least one end of the shaft is formed with a stepped configuration with said first lumen being longer than said second lumen.
Claim 19
Dependent Claim 23 words
A process according to claim 11, wherein the balloon and the guidewire-receiving tube are thermally bonded to the shaft and to each other.

References Cited (Backward Citations)

US4195637A Cited
US4323071A Cited
US4323071B1 Cited
US4251305A Cited
US4875897A Cited
US4610662A Cited
US4636195A Cited
US4762129B1 Cited
US4762129A Cited
US5102390A Cited
US4616653A Cited
US5158540A Cited
US4724846A Cited
US5300085A Cited
US4846174A Cited
US4790315A Cited
US4763654A Cited
US4777951A Cited
US4850358A Cited
US4748982A Cited
US4771777A Cited
US5116350A Cited
US5116350B1 Cited
US4958634A Cited
US5304132A Cited
US5071406A Cited
EP0309754A1 Cited
US4944745A Cited
US5171222A Cited
US5165321A Cited
US5192296A Cited
US5163906A Cited
US5279560A Cited
US5147377A Cited
US4983167A Cited
US5163903A Cited
US5226880A Cited
US5032113A Cited
US5061273A Cited
US5040548A Cited
US5074845A Cited
US5269793A Cited
US5180367A Cited
US5108370A Cited
US5158083A Cited
US5078725A Cited
US5100381A Cited
US5195955A Cited
US5330528A Cited
US5209730A Cited
US5045061A Cited
US5286259A Cited
US5279561A Cited
US5102403A Cited
US5192295A Cited
US5156594A Cited
US5087247A Cited
US5108366A Cited
US5143093A Cited
US5265622A Cited
US5254091A Cited
US5254090A Cited
US5141518A Cited
EP0513818A1 Cited
US5250070A Cited
US5295961A Cited
US5154725A Cited
US5290232A Cited
US5135535A Cited
US5264260A Cited
US5259839A Cited
US5292305A Cited
US5267959A Cited
US5242396A Cited
US5192297A Cited
US5273052A Cited
US5304134A Cited
US5295959A Cited
US5224933A Cited
US5295960A Cited
US5273536A Cited
US5263932A Cited
US5273527A Cited
US5299575A Cited
US5269759A Cited
US5261879A Cited
US5300025A Cited
US5531690A Cited
EP0595308A2 Cited
WO1994011053A1 Cited
US5281200A Cited
US5304199A Cited
EP0611582A2 Cited
US5382234A Cited
US5549553A Cited
US5520647A Cited
US5413557A Cited
US5545134A Cited
US5549557A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 2002-03-15 2002-09-14 2003-03-16 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2006-03-15 2006-09-14 2007-03-16 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2010-03-15 2010-09-14 2011-03-16 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag