Patent US3194717A successfully refreshed from Google Patents.
US5775327A
Expired / Lapsed
US
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Guiding catheter for the coronary sinus
Assignee: Medtronic Inc
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Filing: 1997-05-19
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Granted: 1998-07-07
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Expires: 2017-05-19
Abstract
Abstract A guiding catheter for delivery of intravascular devices to a patient's coronary sinus. The guiding catheter has a relatively stiff proximal section and a relatively flexible distal section, the latter being about 1 to about 6 inches in length and being configured to subselect a branch cardiac vein leading to the coronary sinus. The guiding catheter is particularly suitable for delivering an intravascular device for sensing electrical activity into a cardiac vein to detect such activity from within the blood vessel.
Inventors
- 👤 Yvonne Randolph
- 👤 Duane Dickens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:50
CPC Classifications
A; A61; A61M; A61M29/00; A61M29/02; A61M25/00; A61M25/0043; A61M25/0054; A61B; A61B18/00; A61B18/04; A61B18/12; A61B18/14; A61B18/1492; A61M25/0067; A61M25/008; A61M2025/0081; A61M25/10; A61M2025/1043; A61M2025/1052; A61M2210/00; A61M2210/12; A61M2210/125; A61M25/0021; A61M25/0041; A61M25/01; A61M25/0105; A61M25/0133; A61M25/0141; A61M25/0152; A61M25/06; A61M25/0662; A61N; A61N1/00; A61N1/02; A61N1/04; A61N1/05; A61N1/056; A61N1/057
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
129 words
A guiding catheter for directing an intravascular device within a patient's coronary sinus comprising: a) an elongated shaft having a proximal and distal ends, a port in the distal end and guidewire receiving lumen extending to and in fluid communication with the port in the distal end; b) a relatively stiff proximal shaft section of the elongated shaft; c) a relatively flexible distal shaft section of the elongated shaft having a length of about 2 to about 7 centimeters and being shaped with a bend to facilitate entry into the patient's coronary sinus; d) an expandable occluding member mounted on the flexible distal section; and e) an adapter on the proximal end of the elongated shaft to provide access to the quidewire receiving lumen extending within the elongated shaft.
Claim 2
Dependent Claim
129 words
A guiding catheter for directing an intravascular device within a patient's coronary sinus comprising: a) an elongated shaft having a proximal and distal ends, a port in the distal end and guidewire receiving lumen extending to and in fluid communication with the port in the distal end; b) a relatively stiff proximal shaft section of the elongated shaft; c) a relatively flexible distal shaft section of the elongated shaft having a length of about 2 to about 7 centimeters and being shaped with a bend to facilitate entry into the patient's coronary sinus; d) an expandable occluding member mounted on the flexible distal section; and e) an adapter on the proximal end of the elongated shaft to provide access to the quidewire receiving lumen extending within the elongated shaft.
Claim 3
Dependent Claim
47 words
The guiding catheter of claim 1 wherein the elongated shaft has an inflation lumen extending from the proximal end to a location spaced proximally from the distal end and the expandable occluding member is an inflatable balloon having an interior in fluid communication with the inflation lumen.
Claim 4
Dependent Claim
24 words
The guiding catheter of claim 1 wherein the distal section of the elongated shaft has a length of about 3 to about 6 centimeters.
Claim 5
Dependent Claim
27 words
The guiding catheter of claim 1 wherein the proximal shaft section is formed of a polymer material having a hardness of about 60 to about 85D (Shore).
Claim 6
Dependent Claim
27 words
The guiding catheter of claim 1 wherein the distal shaft section is formed of a polymer material having a hardness of about 80A to about 30D (Shore).
Claim 7
Dependent Claim
26 words
The guiding catheter of claim 1 including an intermediate section having a flexibility greater than the proximal shaft section and less than the distal shaft section.
Claim 8
Dependent Claim
21 words
The guiding catheter of claim 6 wherein the intermediate shaft section has a hardness of about 30 to about 60 (Shore).
Claim 9
Dependent Claim
21 words
The guiding catheter of claim 6 wherein the intermediate shaft section has a length of about 1 to about 8 centimeters.
Claim 10
Dependent Claim
68 words
The guiding catheter of claim 1 wherein the relatively flexible distal shaft section includes a proximal portion having a flexibility greater than that of the proximal shaft section, and a nontraumatic distal portion having a flexibility greater than that of the proximal portion, wherein at least one of the portions of the distal section is being shaped with a bend to facilitate entry within the patient's coronary sinus.
Claim 11
Dependent Claim
230 words
An intravascular assembly including a) a guiding catheter for directing an intravascular device within a patient's coronary sinus, comprising: an elongated shaft having a proximal and distal ends, a port in the distal end and a guidewire receiving lumen extending to and in fluid communication with the port in the distal end, a relatively stiff proximal shaft section of the elongated shaft, a relatively flexible distal section of the elongated shaft having a length of about 2 to about 7 centimeters and having a proximal portion having a flexibility greater than that of the proximal shaft section, and a nontraumatic distal portion having a flexibility greater than that of the proximal portion, wherein at least one of the portions of the distal section is being shaped with a bend to facilitate entry within the patient's coronary sinus; an expandable occluding member mounted on the flexible distal shaft section; and an adapter on the proximal end of the elongated shaft to provide access to the guidewire receiving lumen extending within the elongated shaft; and b) slidably disposed within the guidewire receiving lumen of the guiding catheter, an intravascular device for detecting electrical activity of a patient's heart from within a cardiac vein thereof which includes an elongated shaft, a plurality of sensing electrodes on a distal extremity of the intravascular device and individual electrical conductors electrically connected to the sensing electrodes.
Claim 12
Dependent Claim
230 words
An intravascular assembly including a) a guiding catheter for directing an intravascular device within a patient's coronary sinus, comprising: an elongated shaft having a proximal and distal ends, a port in the distal end and a guidewire receiving lumen extending to and in fluid communication with the port in the distal end, a relatively stiff proximal shaft section of the elongated shaft, a relatively flexible distal section of the elongated shaft having a length of about 2 to about 7 centimeters and having a proximal portion having a flexibility greater than that of the proximal shaft section, and a nontraumatic distal portion having a flexibility greater than that of the proximal portion, wherein at least one of the portions of the distal section is being shaped with a bend to facilitate entry within the patient's coronary sinus; an expandable occluding member mounted on the flexible distal shaft section; and an adapter on the proximal end of the elongated shaft to provide access to the guidewire receiving lumen extending within the elongated shaft; and b) slidably disposed within the guidewire receiving lumen of the guiding catheter, an intravascular device for detecting electrical activity of a patient's heart from within a cardiac vein thereof which includes an elongated shaft, a plurality of sensing electrodes on a distal extremity of the intravascular device and individual electrical conductors electrically connected to the sensing electrodes.
Claim 13
Dependent Claim
60 words
The intravascular assembly of claim 10 wherein the intravascular device has a length greater than a length of the guiding catheter so that the proximal end of the intravascular device extends out the proximal end of the guiding catheter when the distal extremity of the intravascular device having sensing electrodes thereon extends out the distal end of the guiding catheter.
Claim 14
Independent Claim
282 words
A method of detecting electrical activity within a patient's heart, comprising: a) providing a guiding catheter having an elongated shaft having a proximal and distal ends, a port in the distal end and guidewire receiving lumen extending to and in fluid communication with the port in the distal end, a relatively stiff proximal shaft section of the elongated shaft, a relatively flexible distal section of the elongated shaft having a length of about 2 to about 7 centimeters and having a proximal portion having a flexibility greater than that of the proximal shaft section, and a nontraumatic distal portion having a flexibility greater than that of the proximal portion, wherein at least one of the portions of the distal section is being shaped with a bend to facilitate entry within the patient's coronary sinus; an expandable occluding member mounted on the flexible distal shaft section; and an adapter on the proximal end of the elongated shaft to provide access to the guidewire receiving lumen extending within the elongated shaft; b) advancing the guiding catheter through the patient's peripheral venous system into a right atrium of the patient's heart; c) guiding the distal end of the guiding catheter through the coronary sinus ostium into the coronary sinus and into a branch vein which drains into the coronary sinus; d) advancing an intravascular device having sensing electrodes on a distal portion thereof through the guidewire receiving lumen of the guiding catheter under the distal portion of the intravascular device having sensing electrodes thereon extends out the port in the distal end of the guiding catheter; and e) detecting electrical activity by means of the sensing electrodes on the distal portion of the intravascular device.
Claim 15
Independent Claim
282 words
A method of detecting electrical activity within a patient's heart, comprising: a) providing a guiding catheter having an elongated shaft having a proximal and distal ends, a port in the distal end and guidewire receiving lumen extending to and in fluid communication with the port in the distal end, a relatively stiff proximal shaft section of the elongated shaft, a relatively flexible distal section of the elongated shaft having a length of about 2 to about 7 centimeters and having a proximal portion having a flexibility greater than that of the proximal shaft section, and a nontraumatic distal portion having a flexibility greater than that of the proximal portion, wherein at least one of the portions of the distal section is being shaped with a bend to facilitate entry within the patient's coronary sinus; an expandable occluding member mounted on the flexible distal shaft section; and an adapter on the proximal end of the elongated shaft to provide access to the guidewire receiving lumen extending within the elongated shaft; b) advancing the guiding catheter through the patient's peripheral venous system into a right atrium of the patient's heart; c) guiding the distal end of the guiding catheter through the coronary sinus ostium into the coronary sinus and into a branch vein which drains into the coronary sinus; d) advancing an intravascular device having sensing electrodes on a distal portion thereof through the guidewire receiving lumen of the guiding catheter under the distal portion of the intravascular device having sensing electrodes thereon extends out the port in the distal end of the guiding catheter; and e) detecting electrical activity by means of the sensing electrodes on the distal portion of the intravascular device.
Claim 16
Dependent Claim
17 words
The method of claim 12 including ablating heart tissue causing or involved with the sensed electrical activity.
Claim 17
Dependent Claim
21 words
The method of claim 14 further including the step of inflating the expandable occluding member before the detection of electrical activity.
Claim 18
Dependent Claim
189 words
A guiding catheter for directing an intravascular device within a patient's; coronary sinus, comprising: a) an elongated shaft having proximal and distal ends, a port in the distal end and a guidewire receiving lumen extending to and in fluid communication with the port in the distal end; b) a relatively stiff proximal shaft section of the elongated shaft, c) a relatively flexible distal section of the elongated shaft having a length of about 2 to about 7 centimeters and having a proximal portion having a flexibility greater than that of the proximal shaft section, and a nontraumatic distal portion having a flexibility greater than that of the proximal portion, wherein at least one of the portions of the distal section is being shaped with a bend to facilitate entry within the patient's coronary sinus; d) an intermediate section of the elongated shaft having a flexibility greater than the proximal shaft section and less than the distal shaft section, and having an expandable occluding member; and e) an adapter on the proximal end of the elongated shaft to provide access to the guidewire receiving lumen extending within the elongated shaft.
Claim 19
Dependent Claim
189 words
A guiding catheter for directing an intravascular device within a patient's; coronary sinus, comprising: a) an elongated shaft having proximal and distal ends, a port in the distal end and a guidewire receiving lumen extending to and in fluid communication with the port in the distal end; b) a relatively stiff proximal shaft section of the elongated shaft, c) a relatively flexible distal section of the elongated shaft having a length of about 2 to about 7 centimeters and having a proximal portion having a flexibility greater than that of the proximal shaft section, and a nontraumatic distal portion having a flexibility greater than that of the proximal portion, wherein at least one of the portions of the distal section is being shaped with a bend to facilitate entry within the patient's coronary sinus; d) an intermediate section of the elongated shaft having a flexibility greater than the proximal shaft section and less than the distal shaft section, and having an expandable occluding member; and e) an adapter on the proximal end of the elongated shaft to provide access to the guidewire receiving lumen extending within the elongated shaft.
Claim 20
Dependent Claim
47 words
The guiding catheter of claim 15 wherein the elongated shaft has an inflation lumen extending from the proximal end to a location spaced proximally form the distal end and the expandable occluding member is an inflatable balloon having an interior in fluid communication with the inflation lumen.
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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) | 2001-07-06 | 2002-01-05 | 2002-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-07-06 | 2006-01-05 | 2006-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-07-06 | 2010-01-05 | 2010-07-07 | $7700.00 | Window Closed / Lapsed |