Patent US4134631A successfully refreshed from Google Patents.
Patent US5090959A successfully refreshed from Google Patents.
US5090959A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Imaging balloon dilatation catheter
Assignee: Abbott Cardiovascular Systems Inc
•
Filing: 1990-09-13
•
Granted: 1992-02-25
•
Expires: 2010-09-13
Abstract
Abstract An imaging balloon dilatation catheter having an elongate flexible tubular member with proximal and distal extremities. An inflatable balloon is carried by the tubular member near the distal extremity thereof. The tubular member has a plurality of lumens formed therein, an illuminating set of optical fibers is disposed in one of the lumens and extends through the length of the tubular member. An imaging bundle of optical fibers extends through another one of the lumens of the tubular member. A lens is carried by the distal extremity of the tubular member and supplies an image to the bundle of imaging optical fibers. The flexible elongate member is provided with a flow passage in communication with the interior of the balloon for inflating and deflating the balloon.
Inventors
- 👤 Gene L. Samson
- 👤 Michael Aita
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:59
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/10; A61M25/104; A61B; A61B1/00; A61B1/04; A61B1/042
Claims Analysis
Total Claims: 42
Claim 1
Independent Claim
186 words
An imaging angioplasty catheter having proximal and distal ends, the catheter comprising: an elongated flexible tubular member having proximal and distal extremities and having first and second light lumens which are non-coaxial in relation to each other and having a guidewire lumen extending longitudinally therein; an inflatable dilation balloon carried by said tubular member such that it is located between the proximal and distal ends of the catheter and is disposed near the distal extremity of the tubular member and which is adapted to dilate an arterial stenosis and which has an interior in fluid communication with at least one of the light lumens; illuminating optical fiber means disposed in the first light lumen and extending to the distal end of the catheter through the length of the tubular member; an imaging optical fiber means disposed in the second light lumen and extending adjacent the distal end of the catheter through the length of the tubular member; and a lens for supplying an image to said imaging optical fiber means; wherein the guidewire lumen is adapted to receive a guidewire therein and to direct fluid therethrough.
Claim 2
Dependent Claim
186 words
An imaging angioplasty catheter having proximal and distal ends, the catheter comprising: an elongated flexible tubular member having proximal and distal extremities and having first and second light lumens which are non-coaxial in relation to each other and having a guidewire lumen extending longitudinally therein; an inflatable dilation balloon carried by said tubular member such that it is located between the proximal and distal ends of the catheter and is disposed near the distal extremity of the tubular member and which is adapted to dilate an arterial stenosis and which has an interior in fluid communication with at least one of the light lumens; illuminating optical fiber means disposed in the first light lumen and extending to the distal end of the catheter through the length of the tubular member; an imaging optical fiber means disposed in the second light lumen and extending adjacent the distal end of the catheter through the length of the tubular member; and a lens for supplying an image to said imaging optical fiber means; wherein the guidewire lumen is adapted to receive a guidewire therein and to direct fluid therethrough.
Claim 3
Dependent Claim
62 words
A catheter as in claim 1 wherein an adapter is secured to the proximal extremity of the tubular member, said adapter having a plurality of arms, one of said arms including an inflation/deflation port and wherein at least one of the light lumens in the flexible elongated member is in communication with the interior of the balloon and with the inflation/deflation port.
Claim 4
Dependent Claim
50 words
A catheter as in claim 2 wherein the lumens in which the illuminating optical fibers are disposed and the set of imaging optical fibers are disposed provide flow passages extending therethrough which are in communication with the interior of the balloon and which are in communication with the inflation/deflation port.
Claim 5
Dependent Claim
42 words
A catheter as in claim 2 together with an additional elongate flexible member extending through one of the arms of the adapter and wherein the illumination optical fibers and the set of imaging optical fibers extend through the additional elongate flexible member.
Claim 6
Dependent Claim
52 words
A catheter as in claim 1 together with self-venting means carried by the distal extremity of the flexible elongate tubular member and the distal extremity of the balloon which permits the escape of air from the interior of the balloon but restricts the escape of liquid from the interior of the balloon.
Claim 7
Dependent Claim
15 words
A catheter as in claim 1 together with markers identifying certain regions of the balloon.
Claim 8
Dependent Claim
21 words
The catheter of claim 1 wherein the interior of the balloon is in fluid communication with both of the light lumens.
Claim 9
Dependent Claim
63 words
The catheter of claim 1 further comprising a cutout which places said at least one light lumen in fluid communication with the interior of the balloon, the cutout comprising: an elongated, cutaway portion of the tubular member along a substantial length thereof disposed within the interior of the balloon which opens said at least one light lumen to the interior of the balloon.
Claim 10
Dependent Claim
54 words
The catheter of claim 8 wherein the cutout places both light lumens in fluid communication with the interior of the balloon and comprises: an elongated, cutaway portion of the tubular member along a substantial length thereof disposed within the interior of the balloon which opens both light lumens to the interior of the balloon.
Claim 11
Dependent Claim
165 words
An imaging balloon dilation catheter having proximal and distal ends, the catheter comprising: an elongated flexible tubular member having first and second longitudinal light lumens which are non-coaxial in relation to each other and having a longitudinal guidewire lumen; an inflatable balloon carried by said flexible tubular member such that it is located between the proximal and distal ends of the catheter and is disposed near the distal end of the tubular member, the balloon adapted to dilate an arterial stenosis; an illuminating optical fiber means disposed in the first light lumen and extending to the distal end of the catheter therethrough, said first lumen in communication with the interior of said inflatable balloon; an imaging fiber optic means disposed in the second light lumen and extending adjacent the distal end of the catheter therethrough; means to provide an image to the distal end of said imaging optical fiber; and the guidewire lumen is adapted to receive a guidewire therein and to direct fluid therethrough.
Claim 12
Dependent Claim
165 words
An imaging balloon dilation catheter having proximal and distal ends, the catheter comprising: an elongated flexible tubular member having first and second longitudinal light lumens which are non-coaxial in relation to each other and having a longitudinal guidewire lumen; an inflatable balloon carried by said flexible tubular member such that it is located between the proximal and distal ends of the catheter and is disposed near the distal end of the tubular member, the balloon adapted to dilate an arterial stenosis; an illuminating optical fiber means disposed in the first light lumen and extending to the distal end of the catheter therethrough, said first lumen in communication with the interior of said inflatable balloon; an imaging fiber optic means disposed in the second light lumen and extending adjacent the distal end of the catheter therethrough; means to provide an image to the distal end of said imaging optical fiber; and the guidewire lumen is adapted to receive a guidewire therein and to direct fluid therethrough.
Claim 13
Dependent Claim
23 words
The imaging balloon dilation catheter of claim 10 wherein said first and said second lumens are adapted to inflate and deflate said balloon.
Claim 14
Dependent Claim
28 words
The imaging balloon dilation catheter of claim 10 wherein said means to provide an image to the distal end of said imaging optical fiber member comprises a lens.
Claim 15
Dependent Claim
23 words
The imaging balloon dilation catheter of claim 12 wherein said lens is spaced apart from the distal end of said imaging optical fibers.
Claim 16
Dependent Claim
28 words
The imaging balloon dilation catheter of claim 12 wherein said lens is mounted on a portion of said tubular member adjacent the distal end of said imaging fibers.
Claim 17
Dependent Claim
21 words
The catheter of claim 10 wherein the interior of the balloon is in fluid communication with both of the light lumens.
Claim 18
Dependent Claim
63 words
The catheter of claim 10 further comprising a cutout which places said at least one light lumen in fluid communication with the interior of the balloon, the cutout comprising: an elongated, cutaway portion of the tubular member along a substantial length thereof disposed within the interior of the balloon which opens said at least one light lumen to the interior of the balloon.
Claim 19
Dependent Claim
54 words
The catheter of claim 16 wherein the cutout places both light lumens in fluid communication with the interior of the balloon and comprises: an elongated, cutaway portion of the tubular member along a substantial length thereof disposed within the interior of the balloon which opens both light lumens to the interior of the balloon.
Claim 20
Dependent Claim
150 words
An imaging balloon catheter which has proximal and distal ends comprising: an elongated catheter body having distal and proximal extremities and first and second longitudinal, non-coaxial light lumens and a longitudinal guidewire lumen therein; a dilatation balloon located between the proximal and distal ends of the catheter and disposed near the distal extremity of said catheter body which is adapted to dilate an arterial stenosis and which has an interior in fluid communication with at least one of said light lumens; the first light lumen adapted to house an illuminating optical fiber assembly and to inflate and deflate the dilatation balloon located near the distal end of said catheter; the second light lumen adapted to house an imaging optical fiber assembly; and the guidewire lumen has an internal diameter which is sufficiently large to receive a guidewire and to direct fluid therethrough when a guidewire is disposed within said lumen.
Claim 21
Dependent Claim
150 words
An imaging balloon catheter which has proximal and distal ends comprising: an elongated catheter body having distal and proximal extremities and first and second longitudinal, non-coaxial light lumens and a longitudinal guidewire lumen therein; a dilatation balloon located between the proximal and distal ends of the catheter and disposed near the distal extremity of said catheter body which is adapted to dilate an arterial stenosis and which has an interior in fluid communication with at least one of said light lumens; the first light lumen adapted to house an illuminating optical fiber assembly and to inflate and deflate the dilatation balloon located near the distal end of said catheter; the second light lumen adapted to house an imaging optical fiber assembly; and the guidewire lumen has an internal diameter which is sufficiently large to receive a guidewire and to direct fluid therethrough when a guidewire is disposed within said lumen.
Claim 22
Dependent Claim
44 words
The imaging balloon catheter of claim 18 wherein said catheter further comprises venting means in said balloon to allow the escape of air from said balloon when a fluid is pumped into the balloon, but which resists the escape of fluid from said balloon.
Claim 23
Dependent Claim
20 words
The imaging balloon catheter of claim 18 wherein said illuminating optical fiber assembly further comprises a plurality of optical fibers.
Claim 24
Dependent Claim
40 words
The imaging balloon catheter of claim 18 which further comprises an adapter secured to the proximal end of said tubular member, said adapter including means to connect an inflation/deflation apparatus to a lumen connected to the interior of said balloon.
Claim 25
Dependent Claim
25 words
The imaging balloon catheter of claim 21 which further comprises means in said adapter to connect said imaging optical fiber assembly to external viewing means.
Claim 26
Dependent Claim
26 words
The imaging balloon catheter of claim 21 which further comprises means in said adapter to connect said illuminating optical fibers to an external source of light.
Claim 27
Dependent Claim
23 words
The imaging balloon catheter of claim 21 which further comprises means in said adapter to introduce a flushing liquid into the guidewire lumen.
Claim 28
Dependent Claim
29 words
The imaging balloon catheter of claim 18 wherein said imaging optical fiber assembly further comprises an imaging lens attached to the distal end of said imaging optical fiber assembly.
Claim 29
Dependent Claim
42 words
The imaging balloon catheter of claim 2 wherein said lens is attached to the distal end of said imaging optical fiber assembly such that a gap exists between the proximal face of said lens and the distal end of said optical fibers.
Claim 30
Dependent Claim
28 words
The imaging balloon catheter of claim 25 wherein said imaging lens is attached to the distal end of said imaging optical fiber assembly by a transparent adhesive material.
Claim 31
Dependent Claim
21 words
The catheter of claim 18 wherein the interior of the balloon is in fluid communication with both of the light lumens.
Claim 32
Dependent Claim
63 words
The catheter of claim 18 further comprising a cutout which places said at least one flight lumen in fluid communication with the interior of the balloon, the cutout comprising: an elongated, cutaway portion of the tubular member along a substantial length thereof disposed within he interior of the balloon which opens said at least one light lumen to the interior of the balloon.
Claim 33
Dependent Claim
54 words
The catheter of claim 29 wherein the cutout places both light lumens in fluid communication with the interior of the balloon and comprises: an elongated, cutaway portion of the tubular member along a substantial length thereof disposed within the interior of the balloon which opens both light lumens to the interior of the balloon.
Claim 34
Independent Claim
266 words
A method of performing an angioplasty procedure in a patient's vasculature which comprises: advancing a guidewire within a patient's vasculature until the distal portion of said guidewire crosses a lesion to be reduced; advancing a dilatation catheter with a dilatation balloon disposed between the proximal and distal ends of the catheter and disposed near the distal end thereof within the patient's vasculature over the guidewire until the distal portion of said catheter is disposed proximally from said lesion by disposing the guidewire in a longitudinal guidewire lumen formed in the catheter; flushing the area distal of said catheter with a fluid which is essentially transparent to light by passing said fluid through a space between the guidewire and the interior wall of the guidewire lumen within the catheter which houses the guidewire; illuminating said lesion and imaging said lesion at the distal end of said catheter by means of an imaging system disposed in first and second non-coaxial, longitudinal light lumens in said catheter; further advancing said catheter over said guidewire to dispose the dilatation balloon disposed on said catheter within said lesion; forming a passage between at least one light lumen and the interior of the balloon; inflating said balloon to dilate said lesion by introducing an inflation medium into said at least one light lumen having the passage in fluid communication with the interior of the balloon; deflating the dilatation balloon; withdrawing said catheter until the distal end of the catheter is proximal to said lesion; and again illuminating said lesion and imaging said lesion by means of the imaging system in said catheter.
Claim 35
Independent Claim
266 words
A method of performing an angioplasty procedure in a patient's vasculature which comprises: advancing a guidewire within a patient's vasculature until the distal portion of said guidewire crosses a lesion to be reduced; advancing a dilatation catheter with a dilatation balloon disposed between the proximal and distal ends of the catheter and disposed near the distal end thereof within the patient's vasculature over the guidewire until the distal portion of said catheter is disposed proximally from said lesion by disposing the guidewire in a longitudinal guidewire lumen formed in the catheter; flushing the area distal of said catheter with a fluid which is essentially transparent to light by passing said fluid through a space between the guidewire and the interior wall of the guidewire lumen within the catheter which houses the guidewire; illuminating said lesion and imaging said lesion at the distal end of said catheter by means of an imaging system disposed in first and second non-coaxial, longitudinal light lumens in said catheter; further advancing said catheter over said guidewire to dispose the dilatation balloon disposed on said catheter within said lesion; forming a passage between at least one light lumen and the interior of the balloon; inflating said balloon to dilate said lesion by introducing an inflation medium into said at least one light lumen having the passage in fluid communication with the interior of the balloon; deflating the dilatation balloon; withdrawing said catheter until the distal end of the catheter is proximal to said lesion; and again illuminating said lesion and imaging said lesion by means of the imaging system in said catheter.
Claim 36
Dependent Claim
41 words
The method of claim 31 wherein the step of forming a passage between at least one light lumen and the interior of the balloon comprises the step of forming a passage between both light lumens and the interior of the balloon.
Claim 37
Dependent Claim
57 words
The method of claim 31 wherein the step of forming a passage includes the step of cutting away a portion of the tubular member along a length thereof positioned inside the balloon to open at least one light lumen and place the interior of the balloon in fluid communication with said opened at least one light lumen.
Claim 38
Dependent Claim
51 words
The method of claim 31 wherein the step of forming a passage includes the step of cutting away a portion of the tubular member along a length thereof portioned inside the balloon to open both light lumens and place the interior of the balloon in fluid communication with both light lumens.
Claim 39
Dependent Claim
28 words
The method of claim 34 wherein the step of cutting away includes cutting away a substantial portion of the tubular member along it length disposed inside the balloon.
Claim 40
Dependent Claim
239 words
An imaging angioplasty catheter having proximal and distal ends, the catheter comprising: an elongated flexible body member having proximal and distal extremities, said distal extremity located proximal from the distal end of the catheter, and having first and second light lumens formed longitudinally therein which are non-coaxial in relation to each other and having a guidewire lumen; illuminating optical fiber means disposed in the first light lumen through the length of the body member and extending past the distal extremity of the body member to the distal end of the catheter; an imaging optical fiber disposed in the second light lumen through the length of the body member and extending past the distal extremity of the body member and ending adjacent the end of the catheter; a lens for supplying an image to said imaging optical fiber means; an inflatable dilatation balloon disposed at its proximal end at the distal extremity of the body member and at its distal end at a position adjacent the distal end of the catheter and which is adapted to dilate an arterial stenosis and which has an interior in fluid communication with both of the light lumens; and a guidewire tube connected to the guidewire lumen at the distal extremity of the catheter body and extending to the distal end of the catheter; wherein the guidewave lumen and guidewave tube are adapted to receive a guidewire therein and to direct fluid therethrough simultaneously.
Claim 41
Dependent Claim
239 words
An imaging angioplasty catheter having proximal and distal ends, the catheter comprising: an elongated flexible body member having proximal and distal extremities, said distal extremity located proximal from the distal end of the catheter, and having first and second light lumens formed longitudinally therein which are non-coaxial in relation to each other and having a guidewire lumen; illuminating optical fiber means disposed in the first light lumen through the length of the body member and extending past the distal extremity of the body member to the distal end of the catheter; an imaging optical fiber disposed in the second light lumen through the length of the body member and extending past the distal extremity of the body member and ending adjacent the end of the catheter; a lens for supplying an image to said imaging optical fiber means; an inflatable dilatation balloon disposed at its proximal end at the distal extremity of the body member and at its distal end at a position adjacent the distal end of the catheter and which is adapted to dilate an arterial stenosis and which has an interior in fluid communication with both of the light lumens; and a guidewire tube connected to the guidewire lumen at the distal extremity of the catheter body and extending to the distal end of the catheter; wherein the guidewave lumen and guidewave tube are adapted to receive a guidewire therein and to direct fluid therethrough simultaneously.
Claim 42
Dependent Claim
21 words
The catheter of claim 36 wherein the lens is disposed at a position proximal to the distal end of the catheter.
References Cited (Backward Citations)
US3866599A
Cited
US4040413A
Cited
WO1983001893A1
Cited
CH654214A5
Cited
US4448188A
Cited
US4470407A
Cited
US4445892A
Cited
US4773899A
Cited
EP0112148A1
Cited
EP0122089A1
Cited
WO1985002101A1
Cited
US4892099A
Cited
US4684363A
Cited
US4737142A
Cited
US4638805A
Cited
US4756303A
Cited
US4773396A
Cited
US4770653A
Cited
US4781681A
Cited
EP0345051A2
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-02-24 | 1995-08-26 | 1996-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-02-24 | 1999-08-26 | 2000-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-02-24 | 2003-08-26 | 2004-02-25 | $7700.00 | Window Closed / Lapsed |