US5746717A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Balloon catheter and device for perfusion with the balloon catheter
Assignee: Individual
•
Filing: 1994-03-23
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Granted: 1998-05-05
•
Expires: 2014-03-23
Abstract
Abstract Multi-lumen balloon catheter with a closed tip and with an expandable balloon arranged at a short distance from the proximal end of the catheter, with at least one contrast marking at one location on the catheter, which marking permits a determination of the positions of the balloon, with at least two lumina extending in the longitudinal direction of the catheter, of which one communicates with the inside of the expandable balloon and the second lumen has a number of lateral openings in the catheter wall, the distance of the lateral openings increasing in the distal direction from the balloon, and the proximal opening in the side wall being arranged at a distance of 2 mm to 5 mm from the distal end of the balloon, and its use in a device for the isolated perfusion of therapeutically active substances.
Inventors
- 👤 Karl R. Aigner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:33
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/0067; A61M25/0068; A61M25/007; A61M25/10
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
164 words
Multi-lumen balloon-type blocking catheter having a side wall a proximal end, and a distal end, said catheter comprising: a closed tip at said proximal end, an expandable balloon arranged at a short distance from said proximal end, a contrast marking at one location on the catheter to permit determination of the position of the balloon, at least two lumens extending in the longitudinal direction of the catheter, the first said lumen communicating with the inside of the expandable balloon for filling and expanding said balloon, the second said lumen terminating in said closed tip, said second lumen further having a number of lateral openings in the catheter side wall arranged serially in the longitudinal direction of the catheter, a first said lateral opening spaced a distance of 2 mm to 5 mm from the balloon in the direction toward the distal end of the catheter, the distance between successive adjacent lateral openings progressively increasing in the direction toward the distal end of the catheter.
Claim 2
Dependent Claim
164 words
Multi-lumen balloon-type blocking catheter having a side wall a proximal end, and a distal end, said catheter comprising: a closed tip at said proximal end, an expandable balloon arranged at a short distance from said proximal end, a contrast marking at one location on the catheter to permit determination of the position of the balloon, at least two lumens extending in the longitudinal direction of the catheter, the first said lumen communicating with the inside of the expandable balloon for filling and expanding said balloon, the second said lumen terminating in said closed tip, said second lumen further having a number of lateral openings in the catheter side wall arranged serially in the longitudinal direction of the catheter, a first said lateral opening spaced a distance of 2 mm to 5 mm from the balloon in the direction toward the distal end of the catheter, the distance between successive adjacent lateral openings progressively increasing in the direction toward the distal end of the catheter.
Claim 3
Dependent Claim
27 words
The catheter according to claim 1, wherein the lateral openings have one of a round and an oval shape, with a diameter of 1.5 to 3.0 mm.
Claim 4
Dependent Claim
29 words
Balloon catheter according to claim 2, wherein four lateral openings are provided, said lateral openings respectively spaced from one another by approximately 10 mm, 20 mm and 40 mm.
Claim 5
Dependent Claim
20 words
Balloon catheter according to claim 2, wherein a three-way valve is arranged at the distal end of the second lumen.
Claim 6
Dependent Claim
28 words
Balloon catheter according to claim 1, wherein four lateral openings are provided, said openings respectively spaced from one another by approximately 10 mm, 20 mm and 40 mm.
Claim 7
Dependent Claim
16 words
Balloon catheter according to claim 3, wherein each said lateral opening comprises a plurality of apertures.
Claim 8
Dependent Claim
20 words
Balloon catheter according to claim 5, wherein a three-way valve is arranged at the distal end of the second lumen.
Claim 9
Dependent Claim
16 words
Balloon catheter according to claim 1, wherein each said lateral opening comprises a plurality of apertures.
Claim 10
Dependent Claim
20 words
Balloon catheter according to claim 1, wherein a three-way valve is arranged at the distal end of the second lumen.
Claim 11
Dependent Claim
34 words
Balloon catheter according to claim 1, wherein the catheter includes an open tube at its proximal end connected to said closed tip, and a third lumen connected to and opening into said open tube.
Claim 12
Dependent Claim
21 words
Balloon catheter according to claim 10, wherein said open tube has a length of 5-8 cm, measured from said contrast marking.
Claim 13
Dependent Claim
30 words
Balloon catheter according to claim 10, wherein approximately one third of said open tube is bent at an angle of 20°-30° with respect to the longitudinal axis of the catheter.
Claim 14
Dependent Claim
24 words
Balloon catheter according to claim 10, wherein said open tube is made from a polymer having a Shore A hardness of 80 to 85.
Claim 15
Dependent Claim
23 words
Balloon catheter according to claim 1, wherein the catheter is made from a polymer having a Shore A hardness of 92 to 96.
Claim 16
Dependent Claim
23 words
Balloon catheter according to claim 1, wherein the catheter is made from a polymer having a Shore A hardness of 87 to 90.
Claim 17
Dependent Claim
76 words
Apparatus for the isolated perfusion of therapeutically active substances, comprising an infusion pump for infusion of a therapeutically active substance connected to a circulation system by a three-way valve, a perfusion pump connected to said circulation system, two connection pieces connected to said circulation system for attachment of the apparatus to external devices, two tube pieces connected to said circulation system, and two balloon catheters according to claim 1 respectively connected to said two tube pieces.
Claim 18
Dependent Claim
18 words
Apparatus according to claim 16, wherein the two balloon catheters are respectively composed of materials of different hardnesses.
Claim 19
Dependent Claim
17 words
Apparatus according to claim 16, wherein the circulation system furthermore comprises an oxygenator with a heat exchanger.
Claim 20
Dependent Claim
18 words
Apparatus according to claim 16, wherein a filtration set for purifying blood is connected to said connection pieces.
References Cited (Backward Citations)
US3394705A
Cited
US4758221A
Cited
US4832688A
Cited
WO1989003232A1
Cited
US4892519A
Cited
DE3821544A1
Cited
EP0383429A2
Cited
US5180366A
Cited
US5147334A
Cited
US5295961A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2001-05-04 | 2001-11-03 | 2002-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-05-04 | 2005-11-03 | 2006-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-05-04 | 2009-11-03 | 2010-05-05 | $7700.00 | Window Closed / Lapsed |