Patent US510062A successfully refreshed from Google Patents.
Patent US5807356A successfully refreshed from Google Patents.
US5807356A
Expired / Lapsed
US
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Catheter with valve
Assignee: Vasca Inc
•
Filing: 1995-10-04
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Granted: 1998-09-15
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Expires: 2015-10-04
Abstract
Abstract A catheter with valve for implantation in a vascular structure of a living being. The catheter is in the general shape of a "T" with the top of the "T" implanted within the lumen of a vascular structure, and the leg of the "T" extending out of the vascular structure through an incision in the vascular structure. The lumen of the implanted portion of the catheter completely occupies the lumen of the vascular structure, causing all blood flow through the vascular structure to be directed through the implanted portion of the catheter. A valve is placed in the wall of the implanted portion of the catheter which opens into the lumen of the leg of the "T" of the catheter upon application of sufficient differential pressure between the lumens of the two portions of the catheter. The leg of the "T" is connected to the side wall of the implanted portion of the catheter at an angle, such that the axis of the lumen of the leg of the "T" intersects the axis of the lumen of the implanted portion of the catheter at approximately a 45 degree angle.
Inventors
- 👤 Charles David Finch, Jr.
- 👤 Hendrik Klaas Kuiper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:38
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/04; A61F2/06; A61F2/064; A61M; A61M39/00; A61M39/02; A61M39/0208; A61M2039/0211; A61M2039/0223
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
117 words
A catheter with a valve for implantation in a vascular structure, said catheter comprising: an intravascular tube adapted to be implanted in a lumen of a blood vessel, said intravascular tube having an outer side wall and a lumen bounded by an inner wall therethrough; a flexible access leg having a distal end connected to the outer side wall of the intravascular tube and having a lumen therethrough which is fluidly coupled to the lumen of the intravascular tube; and a valve disposed at the distal end of the access leg, wherein the valve is flush with the inner wall of the lumen of the intravascular tube and wherein said valve opens in response to differential pressure.
Claim 2
Dependent Claim
117 words
A catheter with a valve for implantation in a vascular structure, said catheter comprising: an intravascular tube adapted to be implanted in a lumen of a blood vessel, said intravascular tube having an outer side wall and a lumen bounded by an inner wall therethrough; a flexible access leg having a distal end connected to the outer side wall of the intravascular tube and having a lumen therethrough which is fluidly coupled to the lumen of the intravascular tube; and a valve disposed at the distal end of the access leg, wherein the valve is flush with the inner wall of the lumen of the intravascular tube and wherein said valve opens in response to differential pressure.
Claim 3
Dependent Claim
33 words
A catheter as in claim 1, wherein the valve is a slit valve formed in the intravascular tube so that the slit valve is flush with the inner wall of the intravascular tube.
Claim 4
Dependent Claim
23 words
A catheter as in claim 2, wherein the slit valve is oriented in a direction parallel to the lumen of the intravascular tube.
Claim 5
Dependent Claim
24 words
A catheter as in claim 1, wherein the access leg is disposed at an inclined angle relative to the lumen of the intravascular tube.
Claim 6
Dependent Claim
12 words
A catheter as in claim 4, wherein the inclined angle is 45°.
Claim 7
Dependent Claim
47 words
A catheter as in claim 1, wherein the intravascular tube has a length in the range from 20 mm to 50 mm, and outer diameter in the range from 3 mm to 6 mm, and a lumenal diameter in the range from 1 mm to 4 mm.
Claim 8
Dependent Claim
17 words
A catheter as in claim 6, wherein the access tube has a length of approximately 100 mm.
Claim 9
Dependent Claim
11 words
A catheter as in claim 1, wherein the valve is bidirectional.
Claim 10
Dependent Claim
13 words
A catheter as in claim 1, wherein the valve is a slit valve.
Claim 11
Dependent Claim
20 words
A catheter as in claim 1, wherein the intravascular tube has an expanded cap at at least one end thereof.
Claim 12
Dependent Claim
19 words
A catheter as in claim 1, wherein the intravascular tube and access leg are composed of wire-reinforced silicone rubber.
Claim 13
Dependent Claim
102 words
A catheter with a valve for implantation in a vascular structure, said catheter comprising: an intravascular tube adapted to be implanted in a lumen of a blood vessel, said intravascular tube having an outer side wall and a lumen bounded by an inner wall therethrough; a bidirectional flexible access leg having a distal end connected to the outer side wall of the intravascular tube and having a lumen therethrough which is fluidly coupled to the lumen of the intravascular tube; and a valve disposed at the distal end of the access leg, wherein said valve opens in response to a differential pressure.
Claim 14
Dependent Claim
102 words
A catheter with a valve for implantation in a vascular structure, said catheter comprising: an intravascular tube adapted to be implanted in a lumen of a blood vessel, said intravascular tube having an outer side wall and a lumen bounded by an inner wall therethrough; a bidirectional flexible access leg having a distal end connected to the outer side wall of the intravascular tube and having a lumen therethrough which is fluidly coupled to the lumen of the intravascular tube; and a valve disposed at the distal end of the access leg, wherein said valve opens in response to a differential pressure.
Claim 15
Dependent Claim
33 words
A catheter as in claim 12, wherein the valve is a slit valve formed in the intravascular tube so that the slit valve is flush with the inner wall of the intravascular tube.
Claim 16
Dependent Claim
23 words
A catheter as in claim 13, wherein the slit valve is oriented in a direction parallel to the lumen of the intravascular tube.
Claim 17
Dependent Claim
24 words
A catheter as in claim 12, wherein the access leg is disposed at an inclined angle relative to the lumen of the intravascular tube.
Claim 18
Dependent Claim
12 words
A catheter as in claim 15, wherein the inclined angle is 45°.
Claim 19
Dependent Claim
47 words
A catheter as in claim 12, wherein the intravascular tube has a length in the range from 20 mm to 50 mm, and outer diameter in the range from 3 mm to 6 mm, and a lumenal diameter in the range from 1 mm to 4 mm.
Claim 20
Dependent Claim
17 words
A catheter as in claim 17, wherein the access tube has a length of approximately 100 mm.
Claim 21
Dependent Claim
22 words
A catheter as in claim 12, wherein the valve is flush with the inner wall of the lumen of the intravascular tube.
Claim 22
Dependent Claim
13 words
A catheter as in claim 12, wherein the valve is a slit valve.
Claim 23
Dependent Claim
20 words
A catheter as in claim 12, wherein the intravascular tube has an expanded cap at at least one end thereof.
Claim 24
Dependent Claim
19 words
A catheter as in claim 12, wherein the intravascular tube and access leg are composed of wire-reinforced silicone rubber.
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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) | 2001-09-14 | 2002-03-16 | 2002-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-09-14 | 2006-03-16 | 2006-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-09-14 | 2010-03-16 | 2010-09-15 | $7700.00 | Window Closed / Lapsed |