US6159195A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Exchange catheter and method of use
Assignee: Medtronic Vascular Inc
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Filing: 1998-02-19
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Granted: 2000-12-12
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Expires: 2018-02-19
Abstract
Abstract Exchange catheters which allow for the removal of a standard guidewire and replacement with a guidewire or catheter bearing an occlusive device during percutaneous transluminal angioplasty or related procedures. The elongate catheters have at least one lumen, and are preferably provided with a slit approximately 3-20 mm in length at the distal end of the lumen to allow the catheter to expand to accommodate the passage of the occlusive device while still maintaining a low profile. The catheters can also be used to provide aspiration and/or delivery of fluid.
Inventors
- 👤 Hung V. Ha
- 👤 Celso J. Bagaoisan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:29
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/01; A61M25/0169; A61M25/0067; A61M25/0068; A61M25/0074; A61M25/0172; A61M25/10; A61M25/104; A61M2025/0004; A61M2025/0177; A61M25/06; A61M25/0662; A61M2025/0681; A61M2025/1043; A61M2025/1056; A61M2025/1063; A61M2025/1079; A61M25/008
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
189 words
A catheter exchange method, comprising: introducing a guidewire having a proximal end and a distal end into the vasculature of a patient until the distal end of the guidewire is near to an occlusion in the vasculature; providing an exchange catheter comprising an elongate catheter shaft having a proximal end, a distal end, and at least one lumen adapted to allow an occlusive device to pass therethrough, wherein the exchange catheter includes at least one slit in the distal end; delivering the exchange catheter over the guidewire until the distal end of the exchange catheter is near to the occlusion; removing the guidewire from the patient; inserting an occlusion catheter having a proximal end, a distal end and an occlusive device on the distal end thereof into the lumen of the exchange catheter and advancing the occlusion catheter until the occlusive device passes through the distal end of the exchange catheter and is positioned near to the occlusion, wherein passing the occlusion catheter through the distal end of the exchange catheter causes the distal end of the exchange catheter to expand; and removing the exchange catheter from the patient.
Claim 2
Dependent Claim
189 words
A catheter exchange method, comprising: introducing a guidewire having a proximal end and a distal end into the vasculature of a patient until the distal end of the guidewire is near to an occlusion in the vasculature; providing an exchange catheter comprising an elongate catheter shaft having a proximal end, a distal end, and at least one lumen adapted to allow an occlusive device to pass therethrough, wherein the exchange catheter includes at least one slit in the distal end; delivering the exchange catheter over the guidewire until the distal end of the exchange catheter is near to the occlusion; removing the guidewire from the patient; inserting an occlusion catheter having a proximal end, a distal end and an occlusive device on the distal end thereof into the lumen of the exchange catheter and advancing the occlusion catheter until the occlusive device passes through the distal end of the exchange catheter and is positioned near to the occlusion, wherein passing the occlusion catheter through the distal end of the exchange catheter causes the distal end of the exchange catheter to expand; and removing the exchange catheter from the patient.
Claim 3
Dependent Claim
26 words
The method of claim 1, further comprising delivering a therapy catheter to the site of the occlusion and performing therapy to remove or reduce the occlusion.
Claim 4
Dependent Claim
20 words
The method of claim 2, further comprising actuating the occlusive device to provide a working area prior to performing therapy.
Claim 5
Dependent Claim
14 words
The method of claim 2, further comprising aspirating the working area following performing therapy.
Claim 6
Dependent Claim
40 words
The method of claim 4, further comprising removing the therapy catheter following performing therapy, and delivering the distal end of the exchange catheter to the working area and performing the aspirating step using the exchange catheter to deliver aspiration pressure.
Claim 7
Dependent Claim
16 words
The method of claim 1, wherein the guidewire is removed prior to inserting the occlusion catheter.
Claim 8
Dependent Claim
15 words
The method of claim 1, wherein the guidewire is removed after inserting the occlusion catheter.
Claim 9
Dependent Claim
126 words
An exchange method, comprising: delivering a first guidewire into the vasculature of a patient; delivering an exchange catheter, the exchange catheter comprising an elongate catheter shaft having a proximal end, a distal end adapted to allow an occlusive device to pass therethrough, and at least one lien extending between the proximal and distal ends, over the first guidewire into the vasculature of the patient; removing the first guidewire from the patient following delivery of the exchange catheter; and inserting a second guidewire having a proximal end, a distal end, and an occlusive device on the distal end into the at least one lumen of the exchange catheter and advancing the occlusive device through the distal end of the exchange catheter into the vasculature of the patient.
Claim 10
Dependent Claim
126 words
An exchange method, comprising: delivering a first guidewire into the vasculature of a patient; delivering an exchange catheter, the exchange catheter comprising an elongate catheter shaft having a proximal end, a distal end adapted to allow an occlusive device to pass therethrough, and at least one lien extending between the proximal and distal ends, over the first guidewire into the vasculature of the patient; removing the first guidewire from the patient following delivery of the exchange catheter; and inserting a second guidewire having a proximal end, a distal end, and an occlusive device on the distal end into the at least one lumen of the exchange catheter and advancing the occlusive device through the distal end of the exchange catheter into the vasculature of the patient.
Claim 11
Dependent Claim
19 words
The method of claim 8, wherein the first guidewire is removed after insertion and advancement of the second guidewire.
Claim 12
Dependent Claim
11 words
The method of claim 8, further comprising removing the exchange catheter.
Claim 13
Dependent Claim
19 words
The method of claim 10, further comprising delivering a therapy catheter for performing therapy after removing the exchange catheter.
Claim 14
Dependent Claim
15 words
The method of claim 11, further comprising actuating the occlusive device prior to performing therapy.
Claim 15
Dependent Claim
131 words
An exchange catheter method, comprising: delivering a first guidewire having a proximal end and a distal end into the vasculature of the patient until the distal end of the guidewire is near to an occlusion; delivering an exchange catheter comprising an elongate catheter shaft having a proximal end, a distal end and at least one lumen extending therethrough, over the guidewire until the distal end of the exchange catheter is near to the occlusion; delivering a second guidewire having a proximal end, a distal end and an occlusive device on the distal end of the second guidewire through a lumen of the exchange catheter without riding over the first guidewire until the occlusive device is positioned near to the occlusion; and removing the first guidewire following delivery of the exchange catheter.
Claim 16
Dependent Claim
131 words
An exchange catheter method, comprising: delivering a first guidewire having a proximal end and a distal end into the vasculature of the patient until the distal end of the guidewire is near to an occlusion; delivering an exchange catheter comprising an elongate catheter shaft having a proximal end, a distal end and at least one lumen extending therethrough, over the guidewire until the distal end of the exchange catheter is near to the occlusion; delivering a second guidewire having a proximal end, a distal end and an occlusive device on the distal end of the second guidewire through a lumen of the exchange catheter without riding over the first guidewire until the occlusive device is positioned near to the occlusion; and removing the first guidewire following delivery of the exchange catheter.
Claim 17
Dependent Claim
12 words
The method of claim 13, wherein the exchange catheter has two lumens.
Claim 18
Dependent Claim
20 words
The method of claim 14, wherein the exchange catheter is delivered over the guidewire through one of the two lumens.
Claim 19
Dependent Claim
18 words
The method of claim 15, wherein the second guidewire is delivered through the other of the two lumens.
Claim 20
Dependent Claim
15 words
The method of claim 13, wherein the second guidewire is delivered adjacent the first guidewire.
Claim 21
Dependent Claim
18 words
The method of claim 13, wherein removing the first guidewire occurs prior to delivery of the second guidewire.
Claim 22
Dependent Claim
17 words
The method of claim 13, further comprising removing the exchange catheter following delivery of the second guidewire.
Claim 23
Dependent Claim
22 words
The method of claim 19, further comprising delivering a therapy catheter for performing therapy on the occlusion after removing the exchange catheter.
Claim 24
Dependent Claim
15 words
The method of claim 20, further comprising actuating the occlusive device prior to performing therapy.
Claim 25
Dependent Claim
154 words
An exchange method for performing therapy in the vasculature of a patient, comprising: delivering a first guidewire having a proximal end and a distal end into the vasculature of the patient until the distal end of the guidewire is near to an occlusion; delivering an exchange catheter comprising an elongate catheter shaft having a proximal end, a distal end and at least one lumen extending therethrough, over the guidewire until the distal end of the exchange catheter is near to the occlusion; delivering a second guidewire having a proximal end, a distal end and an occlusive device on the distal end of the second guidewire through a lumen of the exchange catheter until the occlusive device is positioned near to the occlusion; removing the first guidewire from the patient following delivery of the exchange catheter and prior to performing therapy; and removing the exchange catheter from the patient following delivery of the second guidewire.
Claim 26
Dependent Claim
154 words
An exchange method for performing therapy in the vasculature of a patient, comprising: delivering a first guidewire having a proximal end and a distal end into the vasculature of the patient until the distal end of the guidewire is near to an occlusion; delivering an exchange catheter comprising an elongate catheter shaft having a proximal end, a distal end and at least one lumen extending therethrough, over the guidewire until the distal end of the exchange catheter is near to the occlusion; delivering a second guidewire having a proximal end, a distal end and an occlusive device on the distal end of the second guidewire through a lumen of the exchange catheter until the occlusive device is positioned near to the occlusion; removing the first guidewire from the patient following delivery of the exchange catheter and prior to performing therapy; and removing the exchange catheter from the patient following delivery of the second guidewire.
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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) | 2003-12-12 | 2004-06-12 | 2004-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-12-12 | 2008-06-12 | 2008-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-12-12 | 2012-06-12 | 2012-12-12 | $7700.00 | Window Closed / Lapsed |