US6319244B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catheter with flexible and rigid reinforcements
Assignee: KDL MEDICAL Inc
•
Filing: 1999-03-16
•
Granted: 2001-11-20
•
Expires: 2019-03-16
Abstract
Abstract A catheter ( 10, 38, 40, 50, 80, 90 ) having both a flexible ( 30 ) and a rigid reinforcement section ( 36 ). The catheter body ( 12 ) is comprised of an elastomeric material, such as silicone, having a resilient coil or spring member ( 30 ) within a fluid delivery lumen ( 20 ) along the proximal portion ( 14 ) thereof. The catheter is provided with a more rigid malleable reinforcement member ( 36 ) at the distal portion ( 16 ) thereof, also extending within the fluid delivery lumen ( 20 ) and positioned proximal the coil member ( 30 ) within the fluid delivery lumen ( 20 ). The rigid reinforced distal portion ( 16 ) of the catheter body helps the surgeon to hold the tip of the catheter more firmly, and makes insertion of the catheter tip into the body vessel easier. The more flexible support portion ( 30 ) at the proximal portion ( 14 ) of the elastomeric catheter body reinforces the catheter to prevent kinking, yet allows flexibility to facilitate the surgeon to move the proximal portion ( 14 ) of the catheter out of the surgical site. The catheter body may be provided with a balloon ( 56 ) and a hinge portion ( 42 ), such as defined by an annular detent ( 54 ), to allow the catheter tip to self-align within the body vessel when the balloon is inflated. Both the flexible ( 30 ) and rigid ( 36 ) reinforcement sections are tubular to facilitate fluid delivery therethrough within through the lumen ( 20 ) through which the reinforcement members ( 30 and 36 ) reside.
Inventors
- 👤 Mitta Suresh
- 👤 Albert Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:48
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/0067; A61M25/0068; A61M25/0043; A61M25/005; A61M25/0053; A61M25/0054; A61M25/008; A61M25/0074; A61M25/10
Claims Analysis
Total Claims: 32
Claim 1
Independent Claim
96 words
A catheter, comprising: a catheter body having a first lumen extending between a proximal portion and a distal portion; a resilient support member extending about said first lumen from said catheter proximal portion to a location short of said distal portion; and a tubular rigid support member extending about said first lumen from proximate said resilient member distal portion to said lumen distal portion; and wherein said catheter body further comprises hinge means disposed proximate said tubular rigid support member and said resilient support member for hinging said catheter body distal portion about said hinge means.
Claim 2
Dependent Claim
96 words
A catheter, comprising: a catheter body having a first lumen extending between a proximal portion and a distal portion; a resilient support member extending about said first lumen from said catheter proximal portion to a location short of said distal portion; and a tubular rigid support member extending about said first lumen from proximate said resilient member distal portion to said lumen distal portion; and wherein said catheter body further comprises hinge means disposed proximate said tubular rigid support member and said resilient support member for hinging said catheter body distal portion about said hinge means.
Claim 3
Dependent Claim
14 words
The catheter as specified in claim 1 wherein said hinge means comprises a detent.
Claim 4
Dependent Claim
25 words
The catheter as specified in claim 1 further comprising an inflatable elastomeric balloon disposed about said catheter distal portion and means to inflate said balloon.
Claim 5
Dependent Claim
12 words
The catheter as specified in claim 3 wherein said balloon comprises silicone.
Claim 6
Dependent Claim
15 words
The catheter as specified in claim 1 wherein said tubular rigid support member is malleable.
Claim 7
Dependent Claim
25 words
The catheter as specified in claim 5 wherein said tubular rigid support member and said catheter body distal portion is curved along a curved portion.
Claim 8
Dependent Claim
28 words
The catheter as specified in claim 6 further comprising an inflatable balloon disposed between said curved portion and said catheter distal portion, and means for inflating said balloon.
Claim 9
Dependent Claim
27 words
The catheter as specified in claim 1 further comprising a thin film disposed about said resilient support member sealing said resilient support member within said first lumen.
Claim 10
Dependent Claim
20 words
The catheter as specified in claim 1 wherein said resilient support member is secured to said tubular rigid support member.
Claim 11
Dependent Claim
15 words
The catheter as specified in claim 1 wherein said resilient support member comprises a coil.
Claim 12
Dependent Claim
21 words
The catheter as specified in claim 10 wherein said coil is disposed about and secured to said tubular rigid support member.
Claim 13
Dependent Claim
21 words
The catheter as specified in claim 10 wherein said coil is disposed within and secured to said tubular rigid support member.
Claim 14
Dependent Claim
15 words
The catheter as specified in claim 10 wherein said catheter body comprises an elastomeric material.
Claim 15
Dependent Claim
13 words
The catheter as specified in claim 13 wherein said elastomeric material comprises silicone.
Claim 16
Dependent Claim
23 words
The catheter as specified in claim 1 further comprising a second lumen extending within said catheter body to said catheter body distal portion.
Claim 17
Dependent Claim
13 words
The catheter as specified in claim 15 wherein said catheter body comprises silicone.
Claim 18
Dependent Claim
33 words
The catheter as specified in claim 1 wherein said tubular rigid support member is disposed proximate, but spaced from, said resilient support member to define a first catheter section comprising said hinge means.
Claim 19
Dependent Claim
16 words
The catheter as specified in claim 17 wherein said first catheter section further comprises a detent.
Claim 20
Dependent Claim
17 words
The catheter as specified in claim 17 wherein said first catheter section has a thinned wall thickness.
Claim 21
Dependent Claim
79 words
A catheter, comprising: a catheter body having a first lumen extending between a proximal portion and a distal portion; a resilient support member extending about said first lumen from said catheter proximal portion to a location short of said distal portion; and a tubular rigid support member extending about said first lumen from proximate said resilient member distal portion to said lumen distal portion, wherein said resilient support member is disposed about and secured to said tubular support member.
Claim 22
Dependent Claim
79 words
A catheter, comprising: a catheter body having a first lumen extending between a proximal portion and a distal portion; a resilient support member extending about said first lumen from said catheter proximal portion to a location short of said distal portion; and a tubular rigid support member extending about said first lumen from proximate said resilient member distal portion to said lumen distal portion, wherein said resilient support member is disposed about and secured to said tubular support member.
Claim 23
Dependent Claim
102 words
A catheter, comprising: a catheter body having a proximal portion, a distal portion, and a first lumen extending between a proximal end and a distal end; a resilient support member extending about said first lumen from said proximal end to a first location between said proximal and said distal end; a tubular rigid support member extending about said first lumen from a second location proximate to said first location to said distal end, a hinge means for hinging said distal portion about said hinge means, wherein said hinge means is disposed between said tubular rigid support member and said resilient support member.
Claim 24
Dependent Claim
102 words
A catheter, comprising: a catheter body having a proximal portion, a distal portion, and a first lumen extending between a proximal end and a distal end; a resilient support member extending about said first lumen from said proximal end to a first location between said proximal and said distal end; a tubular rigid support member extending about said first lumen from a second location proximate to said first location to said distal end, a hinge means for hinging said distal portion about said hinge means, wherein said hinge means is disposed between said tubular rigid support member and said resilient support member.
Claim 25
Dependent Claim
14 words
The catheter as specified in claim 21 wherein said hinge means comprises a detent.
Claim 26
Dependent Claim
18 words
The catheter as specified in claim 21 further comprising an inflatable elastomeric balloon disposed about said catheter body.
Claim 27
Dependent Claim
23 words
The catheter as specified in claim 21 wherein said tubular rigid support member and said distal portion is curved along a curved portion.
Claim 28
Dependent Claim
21 words
The catheter as specified in claim 24 further comprising an inflatable balloon disposed between said curved portion and said distal end.
Claim 29
Dependent Claim
27 words
The catheter as specified in claim 21 further comprising a thin film disposed about said resilient support member sealing said resilient support member within said first lumen.
Claim 30
Dependent Claim
23 words
The catheter as specified in claim 21 wherein said resilient support member is a coil disposed within and secured to said catheter body.
Claim 31
Dependent Claim
33 words
The catheter as specified in claim 21 wherein said tubular rigid support member is disposed proximate, but spaced from, said resilient support member to define a first catheter section comprising said hinge means.
Claim 32
Dependent Claim
16 words
The catheter as specified in claim 28 wherein said first catheter section further comprises a detent.
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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) | 2004-11-19 | 2005-05-21 | 2005-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2008-11-19 | 2009-05-21 | 2009-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2012-11-19 | 2013-05-21 | 2013-11-20 | $7700.00 | Window Closed / Lapsed |