US5141499A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Peritoneal dialysis catheter
Assignee: Individual
•
Filing: 1991-10-09
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Granted: 1992-08-25
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Expires: 2011-10-09
Abstract
Abstract According to the present invention, there is provided a novel peritoneal dialysis catheter which comprises a flexible catheter tube having a proximal and a distal end portion. The distal end portion defines flow port means for fluid communication between the bore of the catheter tube and the peritoneal cavity. The catheter carries one to two porous cuff means to facilitate permanent securance of the catheter to the abdominal wall. The improvement of the invention comprises flexible catheter tubing having an internal diameter in the range from about 2.5 to about 5.0 millimeters; and a transcutaneous section which is at least one-half the exterior diameter and at least one half the interior diameter of the flexible catheter tube.
Inventors
- 👤 Anthony R. Zappacosta
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 03:30
CPC Classifications
A; A61; A61M; A61M1/00; A61M1/14; A61M1/28; A61M1/285
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
105 words
A peritoneal catheter which comprises a flexible catheter tube having a proximal and a distal end portion, said distal end portion defining flow port means for fluid communication between the bore of the catheter tube and the peritoneal cavity, said catheter carrying one to two porous cuff means to facilitate permanent securance of the catheter to the abdominal wall, the improvement comprising: said flexible catheter tubing having an internal diameter in the range from about 2.5 to about 5.0 millimeters; and a transcutaneous section which is at least onehalf the exterior diameter and at least one half the interior diameter of the flexible catheter tube.
Claim 2
Dependent Claim
105 words
A peritoneal catheter which comprises a flexible catheter tube having a proximal and a distal end portion, said distal end portion defining flow port means for fluid communication between the bore of the catheter tube and the peritoneal cavity, said catheter carrying one to two porous cuff means to facilitate permanent securance of the catheter to the abdominal wall, the improvement comprising: said flexible catheter tubing having an internal diameter in the range from about 2.5 to about 5.0 millimeters; and a transcutaneous section which is at least onehalf the exterior diameter and at least one half the interior diameter of the flexible catheter tube.
Claim 3
Dependent Claim
31 words
The catheter according to claim further comprising: a transperitoneal section which is at least one-half the exterior diameter and at least one half the interior diameter of the flexible catheter tube.
Claim 4
Dependent Claim
22 words
The catheter according to claim 1 wherein the flexible catheter tube has an exterior diameter of about 4.5 to about 7 millimeters.
Claim 5
Dependent Claim
27 words
The catheter according to claim 1 wherein the flexible catheter tube has an external diameter of about 5.0 millimeters and an internal diameter of about 3.0 millimeters.
Claim 6
Dependent Claim
32 words
The catheter according to claim 1 wherein the transcutaneous section has an exterior diameter of about 2.5 to about 3.5 millimeters and an interior diameter of about 1.25 to about 2.5 millimeters.
Claim 7
Dependent Claim
26 words
The catheter according to claim 1 wherein the transcutaneous section has an exterior diameter of about 2.3 millimeters and an interior diameter of about 1.3 millimeters.
Claim 8
Dependent Claim
20 words
The catheter according to claim 1 wherein the transcutaneous section is about 2.5 centimeters to about 7.5 centimeters in length.
Claim 9
Dependent Claim
22 words
The catheter according to claim 2 wherein the flexible catheter tube has an exterior diameter of about 4.5 to about 7 millimeters.
Claim 10
Dependent Claim
27 words
The catheter according to claim 2 wherein the flexible catheter tube has an external diameter of about 5.0 millimeters and an internal diameter of about 3.0 millimeters.
Claim 11
Dependent Claim
36 words
The catheter according to claim 2 wherein the transperitoneal section and the transcutaneous section have an exterior diameter of about 2.25 to about 3.5 millimeters and an interior diameter of about 1.25 to about 2.5 millimeters.
Claim 12
Dependent Claim
26 words
The catheter according to claim 2 wherein the transperitoneal section has an exterior diameter of about 2.3 millimeters and an interior diameter of about 1.3 millimeters.
Claim 13
Dependent Claim
20 words
The catheter according to claim 2 wherein the transperitoneal section is about 2.5 centimeters to about 7.5 centimeters in length.
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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) | 1995-08-25 | 1996-02-24 | 1996-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-08-25 | 2000-02-24 | 2000-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-08-25 | 2004-02-24 | 2004-08-25 | $7700.00 | Window Closed / Lapsed |