Patent US6196995B1 successfully refreshed from Google Patents.
US6196995B1
Expired / Lapsed
US
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Reinforced edge exchange catheter
Assignee: Medtronic Vascular Inc
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Filing: 1998-09-30
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Granted: 2001-03-06
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Expires: 2018-09-30
Abstract
Abstract The invention relates to a catheter and guidewire exchange system in which the guidewire is contained within an indwelling portion of the catheter and with the guidewire and the catheter being separated externally of the patient. The catheter includes a guidewire lumen and a longitudinal slit which penetrates through the catheter wall and into the guidewire lumen. The catheter walls adjacent the slit are provided with reinforced edges which function to maintain the slit in a normally closed position during the catheterization procedure, when desired.
Inventors
- 👤 John R. Fagan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:39
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/10; A61M25/104; A61M25/01; A61M2025/0183; A61M2025/1043; A61M2025/107
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
120 words
A catheter comprising, an elongated catheter body having a proximal end, a distal end, an outside surface, a lumen extending longitudinally through at least part of the catheter body, and a longitudinal slit formed in the catheter body and extending radially from a first end at the catheter body outside surface to the lumen, the catheter body having a cross-sectional area defining a centroid through which a principal axis passes, the lumen having a cross-sectional area defining a center point, the lumen being disposed within the catheter body such that the distance between the principal axis of the catheter body and the slit first end is less than the distance between the lumen center point and the slit first end.
Claim 2
Dependent Claim
120 words
A catheter comprising, an elongated catheter body having a proximal end, a distal end, an outside surface, a lumen extending longitudinally through at least part of the catheter body, and a longitudinal slit formed in the catheter body and extending radially from a first end at the catheter body outside surface to the lumen, the catheter body having a cross-sectional area defining a centroid through which a principal axis passes, the lumen having a cross-sectional area defining a center point, the lumen being disposed within the catheter body such that the distance between the principal axis of the catheter body and the slit first end is less than the distance between the lumen center point and the slit first end.
Claim 3
Dependent Claim
21 words
The catheter according to claim 1 , wherein the lumen and slit extend essentially the entire length of the catheter body.
Claim 4
Dependent Claim
17 words
The catheter according to claim 2 , wherein the lumen is adapted to receive a guidewire therethrough.
Claim 5
Dependent Claim
29 words
The catheter according to claim 1 , wherein the slit terminates proximal of the distal end of the catheter body thereby forming an unslit distal segment of the catheter.
Claim 6
Dependent Claim
20 words
The catheter according to claim 4 further comprising an encircling member coupled to the catheter on the unslit distal segment.
Claim 7
Dependent Claim
15 words
The catheter according to claim 5 , wherein the encircling member is an inflatable balloon.
Claim 8
Dependent Claim
53 words
The catheter according to claim 6 further comprising a second lumen extending longitudinally through the catheter body having a proximal end adapted to be in flow communication with a source of pressurized fluid and a distal end in flow communication with the interior of the balloon for inflation and deflation of the balloon.
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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) | 2004-03-05 | 2004-09-04 | 2005-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2008-03-05 | 2008-09-04 | 2009-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2012-03-05 | 2012-09-04 | 2013-03-06 | $7700.00 | Window Closed / Lapsed |