Patent US6283947B1 successfully refreshed from Google Patents.
US6283947B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Local drug delivery injection catheter
Assignee: Abbott Cardiovascular Systems Inc
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Filing: 1999-07-13
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Granted: 2001-09-04
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Expires: 2019-07-13
Abstract
Abstract A catheter for injecting medication to a specific point within a patient comprises a drug delivery lumen extending from a proximal end of the catheter to an injection port. The catheter comprises a mechanism for angularly pushing the injection port outwardly away from the body of the catheter into an artery wall so that medication can be injected directly into the artery wall.
Inventors
- 👤 Daryush Mirzaee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:10
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/10; A61M25/0067; A61M25/0082; A61M25/0084; A61M2025/0004; A61M2025/0085; A61M2025/0086; A61M2025/0087; A61M2025/0096
Claims Analysis
Total Claims: 33
Claim 1
Independent Claim
128 words
A catheter for delivering a drug to a location within a patient, comprising: a first tube; a second tube extending from a proximal end to a distal end along an axis; a first lumen provided in said first tube for receiving said drug, said first lumen extending from the proximal end of said first tube to an injection port; a preferential bending point on said first tube; a balloon lumen provided in said second tube; and a balloon coupled to the balloon lumen such that inflation of the balloon bends the first tube at the preferential bending point, thereby angularly pushing said injection port away from the axis of the second tube to change an angle formed between said injection port and said axis of the second tube.
Claim 2
Dependent Claim
128 words
A catheter for delivering a drug to a location within a patient, comprising: a first tube; a second tube extending from a proximal end to a distal end along an axis; a first lumen provided in said first tube for receiving said drug, said first lumen extending from the proximal end of said first tube to an injection port; a preferential bending point on said first tube; a balloon lumen provided in said second tube; and a balloon coupled to the balloon lumen such that inflation of the balloon bends the first tube at the preferential bending point, thereby angularly pushing said injection port away from the axis of the second tube to change an angle formed between said injection port and said axis of the second tube.
Claim 3
Dependent Claim
11 words
Catheter of claim 1 wherein said injection port comprises a needle.
Claim 4
Dependent Claim
10 words
Catheter of claim 1 wherein said injection port is radiopaque.
Claim 5
Dependent Claim
13 words
Catheter of claim 1 wherein a radiopaque marker is provided on said balloon.
Claim 6
Dependent Claim
17 words
Catheter of claim 1 wherein a radiopaque marker is formed on said catheter proximate to said balloon.
Claim 7
Dependent Claim
32 words
Catheter of claim 1 wherein a radiopaque marker is provided on said first tube at said preferential bending point where said injection port bends away from said axis of said second tube.
Claim 8
Dependent Claim
14 words
Catheter of claim 1 further comprising a stiffening mandrel extending through said first lumen.
Claim 9
Dependent Claim
17 words
Catheter of claim 1 further comprising a stiffening mandrel extending along the exterior of said first tube.
Claim 10
Dependent Claim
11 words
Catheter of claim 1 wherein said balloon is a helical-shaped balloon.
Claim 11
Dependent Claim
25 words
Catheter of claim 1 wherein said balloon has wide and narrow regions to permit blood to perfuse past said balloon when said balloon is inflated.
Claim 12
Dependent Claim
22 words
Catheter of claim 1 , further comprising a guide wire lumen having an axis parallel to the axis of the second tube.
Claim 13
Dependent Claim
111 words
A catheter for delivering a drug to a location within a patient comprising: a first tube; a second tube extending from a proximal end to a distal end along an axis; a first lumen provided in said first tube for receiving said drug, said first lumen extending from the proximal end of said first tube to an injection port; a preferential bending point on said first tube; a balloon lumen provided in said second tube; and a balloon coupled to the balloon lumen such that inflation of the balloon bends the first tube at the preferential bending point, thereby rotating said injection port away from the axis of the second tube.
Claim 14
Dependent Claim
111 words
A catheter for delivering a drug to a location within a patient comprising: a first tube; a second tube extending from a proximal end to a distal end along an axis; a first lumen provided in said first tube for receiving said drug, said first lumen extending from the proximal end of said first tube to an injection port; a preferential bending point on said first tube; a balloon lumen provided in said second tube; and a balloon coupled to the balloon lumen such that inflation of the balloon bends the first tube at the preferential bending point, thereby rotating said injection port away from the axis of the second tube.
Claim 15
Dependent Claim
22 words
Catheter of claim 12 , further comprising a guide wire lumen having an axis parallel to the axis of the second tube.
Claim 16
Dependent Claim
89 words
Method for delivering medication to a patient comprising the steps of: inserting a catheter into a patient, said catheter comprising a catheter body, a drug delivery lumen within the catheter body, and an injection port in communication with said drug delivery lumen; inflating a balloon to angularly push the injection port away from the catheter axis toward or into the patient's artery wall by bending said drug delivery lumen at a preferential bending point; and injecting medication into the patient through the drug delivery lumen and said injection port.
Claim 17
Dependent Claim
89 words
Method for delivering medication to a patient comprising the steps of: inserting a catheter into a patient, said catheter comprising a catheter body, a drug delivery lumen within the catheter body, and an injection port in communication with said drug delivery lumen; inflating a balloon to angularly push the injection port away from the catheter axis toward or into the patient's artery wall by bending said drug delivery lumen at a preferential bending point; and injecting medication into the patient through the drug delivery lumen and said injection port.
Claim 18
Dependent Claim
11 words
Method of claim 14 wherein said injection port is a needle.
Claim 19
Dependent Claim
32 words
Method of claim 14 further comprising the steps of: moving said injection port toward an angle parallel with the axis of said catheter after said step of injecting; and retracting said catheter.
Claim 20
Dependent Claim
124 words
A catheter for delivering a drug to a location within a patient, comprising: a guide wire lumen; a tube extending from a proximal end to a distal end along an axis of said guide wire lumen and having a first lumen for receiving said drug, said first lumen extending from the proximal end of said tube to an injection port; a preferential bending point on said tube; and a balloon for angularly pushing said injection port away from the axis of the guide wire lumen by bending said tube at said preferential bending point, thereby changing an angle formed between said injection port and said axis of the guide wire lumen; said injection port being coupled to said tube at said preferential bending point.
Claim 21
Dependent Claim
124 words
A catheter for delivering a drug to a location within a patient, comprising: a guide wire lumen; a tube extending from a proximal end to a distal end along an axis of said guide wire lumen and having a first lumen for receiving said drug, said first lumen extending from the proximal end of said tube to an injection port; a preferential bending point on said tube; and a balloon for angularly pushing said injection port away from the axis of the guide wire lumen by bending said tube at said preferential bending point, thereby changing an angle formed between said injection port and said axis of the guide wire lumen; said injection port being coupled to said tube at said preferential bending point.
Claim 22
Dependent Claim
11 words
Catheter of claim 17 wherein said injection port comprises a needle.
Claim 23
Dependent Claim
13 words
Catheter of claim 17 further comprising a stiffening mandrel extending through said tube.
Claim 24
Dependent Claim
15 words
Catheter of claim 17 wherein a stiffening mandrel extends along an exterior of said tube.
Claim 25
Dependent Claim
107 words
A catheter for delivering a drug to a location within a patient, comprising: a guide wire lumen; a tube extending from a proximal end to a distal end along an axis of said guide wire lumen and having a first lumen for receiving said drug, said first lumen extending from the proximal end of said tube to an injection port; a preferential bending point on said tube; and an inflatable balloon for rotating said injection port away from the axis of the guide wire lumen by bending said tube at said preferential bending point; said injection port being coupled to said tube at said preferential bending point.
Claim 26
Dependent Claim
107 words
A catheter for delivering a drug to a location within a patient, comprising: a guide wire lumen; a tube extending from a proximal end to a distal end along an axis of said guide wire lumen and having a first lumen for receiving said drug, said first lumen extending from the proximal end of said tube to an injection port; a preferential bending point on said tube; and an inflatable balloon for rotating said injection port away from the axis of the guide wire lumen by bending said tube at said preferential bending point; said injection port being coupled to said tube at said preferential bending point.
Claim 27
Dependent Claim
11 words
Catheter of claim 21 wherein said injection port comprises a needle.
Claim 28
Dependent Claim
13 words
Catheter of claim 21 further comprising a stiffening mandrel extending through said tube.
Claim 29
Dependent Claim
15 words
Catheter of claim 21 wherein a stiffening mandrel extends along an exterior of said tube.
Claim 30
Dependent Claim
129 words
Method for delivering medication to a patient comprising the steps of: inserting a catheter into a patient, said catheter comprising a catheter body, a guide wire lumen having an axis, a tube, a drug delivery lumen within the tube, and an injection port in communication with said drug delivery lumen; angularly extending the injection port away from the axis of the guide wire lumen toward or into the patient's artery wall by inflating a balloon to bend said tube at a preferential bending point, said injection port being attached to said tube at said preferential bending point, to change an angle formed between said injection port and said axis of the guide wire lumen; and injecting medication into the patient through the drug delivery lumen and said injection port.
Claim 31
Dependent Claim
129 words
Method for delivering medication to a patient comprising the steps of: inserting a catheter into a patient, said catheter comprising a catheter body, a guide wire lumen having an axis, a tube, a drug delivery lumen within the tube, and an injection port in communication with said drug delivery lumen; angularly extending the injection port away from the axis of the guide wire lumen toward or into the patient's artery wall by inflating a balloon to bend said tube at a preferential bending point, said injection port being attached to said tube at said preferential bending point, to change an angle formed between said injection port and said axis of the guide wire lumen; and injecting medication into the patient through the drug delivery lumen and said injection port.
Claim 32
Dependent Claim
11 words
Method of claim 25 wherein said injection port comprises a needle.
Claim 33
Dependent Claim
35 words
Method of claim 25 , further comprising the steps of: moving said injection port toward an angle parallel with said axis of the guide wire lumen after said step of injecting; and retracting said catheter.
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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) | 2004-09-03 | 2005-03-05 | 2005-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2008-09-03 | 2009-03-05 | 2009-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2012-09-03 | 2013-03-05 | 2013-09-04 | $7700.00 | Window Closed / Lapsed |