EP0518205A1
Expired / Lapsed
EP
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Catheter system with catheter and guidewire exchange
Assignee: Abbott Cardiovascular Systems Inc
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Filing: 1992-06-03
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Granted: —
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Expires: 2012-06-03
Abstract
Abstract An intravascular catheter system (10), such as a dilatation catheter system for angioplasty procedures, which provides for the replacement of the catheter or the guidewire thereof during the procedure. The intravascular catheter has an guidewire-receiving inner lumen (14) extending along the length thereof. A first guidewire port (15) is provided in the catheter body at or near the proximal end of the catheter, a second guidewire port (17) is provided in the catheter body at a location spaced distally from the first guidewire port and proximally from a diagnostic or therapeutic means (13) on a distal portion of the catheter and a third guidewire port (18) is provided in the distal end of the catheter. The guidewire ports are in communication with the guidewire-receiving inner lumen.
Inventors
- 👤 Barry L. Kramer
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 11:39
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/10; A61M25/104; A61M25/01; A61M2025/0183; A61M2025/1043; A61M2025/107; A61M2025/1079
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
247 words
An intravascular catheter system which is adapted for diagnostic or therapeutic procedures within a patient's vascular system and which allows the exchange of a guidewire or catheter thereof while the catheter system is disposed within the patient's vascular system or the catheter while the guidewire is disposed within the patient's vasculature, the system being characterized by: a) an elongated catheter body having proximal and distal ends and a guidewire-receiving inner lumen therein extending to the distal end of the catheter body; b) means mounted on a distal portion of the catheter body for performing a diagnostic or therapeutic procedure within a patient's vasculature; c) a first guidewire port in the catheter body defining at least in part the guidewire-receiving inner lumen, the first port being at or near the proximal end of the catheter body and being in communication with the guidewire-receiving inner lumen; d) a second guidewire port in the wall of the catheter body defining at least in part the guidewire-receiving inner lumen, the second port being proximal to the means for performing the diagnostic or therapeutic procedures and being spaced at least 10 cm from the distal end of the catheter body and a substantial distance from the proximal end of the catheter body and being in communication with the guidewire-receiving inner lumen; e) a third guidewire port in the distal end of the catheter body in communication with the guidewire-receiving inner lumen; and f) a guidewire slidably disposed within the guidewire-receiving inner lumen.
Claim 2
Dependent Claim
62 words
The intravascular catheter of claim 1 wherein the means for performing diagnostic or therapeutic procedures is an inflatable angioplasty balloon and wherein the system has further an inflation lumen extending within the catheter body from the proximal end thereof to the interior of the inflatable balloon, and wherein the first guidewire port is located in the proximal end of the catheter body.
Claim 3
Dependent Claim
29 words
The intravascular catheter of any one of the preceding claims wherein the second port is spaced not more than 50 cm from the distal end of the catheter body.
Claim 4
Dependent Claim
32 words
The intravascular catheter of any one of the preceding claims wherein the first guidewire port is spaced distally about 0.5 to about 30 cm from the proximal end of the catheter body.
Claim 5
Dependent Claim
210 words
A dilatation catheter suitable for performing angioplasty procedures within a patient's artery, the catheter being characterized by: a) an elongated catheter body having proximal and distal ends, a guidewire-receiving lumen extending within the catheter body to the distal end thereof and an inflation lumen extending within the catheter body to a distal portion thereof; b) an inflatable balloon on the distal portion of the catheter body having an interior in fluid communication with the inflation lumen; c) a first guidewire port in the catheter body defining at least in part the guidewire-receiving lumen, the first port being at or near the proximal end of the catheter body and being in communication with the guidewire-receiving inner lumen; d) a second guidewire port in a wall of the catheter body defining at least in part the guidewire-receiving lumen, the second port being spaced at least 10 cm from the distal end of the catheter body and a substantial distance from the proximal end being in communication with the guidewire-receiving inner lumen; e) a third guidewire port in the distal end of the catheter body which is in communication with the guidewire-receiving inner lumen; and f) means on the proximal end of the catheter body to direct inflation fluid to the inflation lumen.
Claim 6
Dependent Claim
61 words
The catheter system of any one of the preceding claims wherein a slit is provided in the wall of the catheter body defining at least in part the guidewire-receiving lumen which extends distally from the second guidewire port to a location proximal from the diagnostic or therapeutic means or balloon to facilitate the separation between the guidewire and the catheter body.
Claim 7
Dependent Claim
38 words
The dilatation catheter of any one of the preceding claims wherein a slit in the wall of the catheter body defining at least part of the guidewire-receiving lumen which extends between the first and the second guidewire ports.
Claim 8
Independent Claim
319 words
A method of performing an intravascular procedure within a patient's vascular system being characterized by: a) providing an intravascular catheter which includes, an elongated catheter body having proximal and distal ends, a guidewire-receiving inner lumen extending within the catheter body to the distal end thereof, diagnostic or therapeutic means on the distal portion of the catheter body, a first guidewire port in the catheter body defining at least in part the guidewire-receiving lumen, the first port being at or near the proximal end of the catheter body and being in communication with the guidewire-receiving inner lumen, a second guidewire port in a wall of the catheter body defining at least in part the guidewire-receiving inner lumen, the second port being spaced proximally from the diagnostic or therapeutic means and at least 10 cm from the distal end of the catheter body and being in communication with the guidewire-receiving inner lumen, and a third guidewire port in the distal end of the catheter body which is in communication with the guidewire-receiving inner lumen; b) disposing the intravascular catheter within the vascular system of the patient with a guidewire disposed within the guidewire-receiving inner lumen with the distal end thereof extending out the third guidewire port into the patient's vascular system and the proximal end extending out the first guidewire port; c) advancing the intravascular catheter over the guidewire within the patient's coronary artery; d) performing an intravascular procedure within the diagnostic or therapeutic means; e) withdrawing the guidewire from the patient's vascular system by pulling on the proximal end thereof, while holding the intravascular catheter in place so as to maintain access to the patient's coronary artery; e) advancing a replacement guidewire through the guidewire-receiving inner lumen of the intravascular catheter out the third guidewire port into the patient's vascular system; and f) advancing the intravascular catheter over the replacement guidewire to a desired location within the patient's coronary artery.
Claim 9
Dependent Claim
51 words
The method of claim 8 wherein the diagnostic or therapeutic means is an inflatable balloon suitable for angioplasty procedures and wherein the intravascular catheter has an inner lumen extending within the catheter body for directing inflation fluid from the proximal end of the catheter to the interior of the inflatable balloon.
Claim 10
Independent Claim
270 words
A method of performing an intravascular procedure within a patient's vascular system being characterized by: a) providing an intravascular catheter which includes, an elongated catheter body having proximal and distal ends, a guidewire-receiving inner lumen extending within the catheter body to the distal end thereof, diagnostic or therapeutic means on the distal portion of the catheter body, a first guidewire port in of the catheter body defining at least in part the guidewire-receiving lumen, the first port being at or near the proximal end of the catheter body and being in communication with the guidewire-receiving inner lumen, a second guidewire port in a wall of the catheter body defining at least in part the guidewire-receiving inner lumen, the second port being spaced proximally from the diagnostic or therapeutic means and at least 10 cm from the distal end of the catheter body and being in communication with the guidewire-receiving inner lumen, and a third guidewire port in the distal end of the catheter body which is in communication with the guidewire-receiving inner lumen; b) disposing the intravascular catheter within the vascular system of the patient with a guidewire disposed within the guidewire-receiving inner lumen with the distal end thereof extending out the third guidewire port into the patient's vascular system and the proximal end extending out either the first or second guidewire port; c) withdrawing the catheter from the patient's vascular system by pulling on the proximal end thereof, while holding the guidewire in place so as to maintain access to the patient's vascular system; and d) advancing a replacement catheter over the in-place guidewire into the patient's vascular system.
Claim 11
Dependent Claim
166 words
The method of claim 10 wherein the replacement catheter comprises: a) an elongated catheter body having proximal and distal ends, a guidewire-receiving inner lumen extending within the catheter body to the distal end thereof; b) diagnostic or therapeutic means on the distal portion of the catheter body; c) a first guidewire port in of the catheter body defining at least in part the guidewire-receiving lumen, the first port being at or near the proximal end of the catheter body and being in communication with the guidewire-receiving inner lumen; d) a second guidewire port in a wall of the catheter body defining at least in part the guidewire-receiving inner lumen, the second port being spaced proximally from the diagnostic or therapeutic means and at least 10 cm from the distal end of the catheter body and being in communication with the guidewire-receiving inner lumen; and e) a third guidewire port in the distal end of the catheter body which is in communication with the guidewire-receiving inner lumen.
Claim 12
Dependent Claim
62 words
The method of claim 11 wherein the proximal end of the guidewire is inserted into the third guidewire port in the distal end of the replacement catheter and the replacement catheter is advanced proximally thereover until the proximal end of the guidewire exits the second guidewire port of the replacement catheter before the replacement catheter is advanced into the patient's vascular system.
Claim 13
Dependent Claim
57 words
The method of claim 11 wherein the proximal end of the guidewire is inserted into the third guidewire port in the distal end of the replacement catheter, the replacement catheter is advanced thereover until the proximal end of the guidewire exits the first guidewire port and the replacement catheter is further advanced within the patient's vascular system.
References Cited (Backward Citations)
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