US5069673A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catheter with double step-down bore
Assignee: Cordis Corp
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Filing: 1990-02-07
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Granted: 1991-12-03
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Expires: 2010-02-07
Abstract
Abstract A catheter defines a flexible tubular body and a tubular tip carrier at the distal end of the body. At last the majority of the tubular body defines a first bore portion having a first meter. The catheter defines side holes adjacent the distal end, with the catheter defining a second bore portion distal to the side holes having a second diameter which is less than the first diameter. The catheter also defines an intermediate, tubular portion between the first and second bore portions, the intermediate portion having a third bore diameter that is less than the first diameter and greater than the second diameter. The intermediate portion also defines a thicker catheter wall than the catheter wall defining the first bore portion.
Inventors
- 👤 Jacqueline A. Shwab
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:55
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/0021; A61M25/0023; A61M25/0041; A61M25/0067; A61M25/0068; A61M25/007
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
127 words
A catheter which defines a flexible, tubular body and a tubular tip carried at the distal end of said body, at least the majority of said tubular body defining a first bore portion having a first diameter; said catheter defining side holes adjacent said distal end, said catheter defining a second bore portion distal to essentially all of said side holes present and having a second diameter which is less than the first diameter; said catheter also defining an intermediate, tubular portion between the first and second bore portions, said intermediate portion having a third bore diameter that is less than the first diameter and greater than the second diameter, said intermediate portion defining a thicker catheter wall than the catheter wall defining the first bore portion.
Claim 2
Dependent Claim
127 words
A catheter which defines a flexible, tubular body and a tubular tip carried at the distal end of said body, at least the majority of said tubular body defining a first bore portion having a first diameter; said catheter defining side holes adjacent said distal end, said catheter defining a second bore portion distal to essentially all of said side holes present and having a second diameter which is less than the first diameter; said catheter also defining an intermediate, tubular portion between the first and second bore portions, said intermediate portion having a third bore diameter that is less than the first diameter and greater than the second diameter, said intermediate portion defining a thicker catheter wall than the catheter wall defining the first bore portion.
Claim 3
Dependent Claim
30 words
The catheter of claim 1 in which said flexible, tubular body is joined to said tubular tip at a junction area between the first bore portion and the intermediate portion.
Claim 4
Dependent Claim
16 words
The catheter of claim 1 in which said side holes are defined in the intermediate portion.
Claim 5
Dependent Claim
30 words
The catheter of claim 1 which defines stepped, bore-reducing areas between (1) the first bore portion and the intermediate portion and (2) the intermediate portion and the second bore portion.
Claim 6
Dependent Claim
19 words
The catheter of claim 1 in which said tubular body carries a tubular reinforcing sleeve made of metal strands.
Claim 7
Dependent Claim
187 words
A catheter which defines a flexible, tubular body and a tubular tip carried at the distal end of said body, at least the majority of said tubular body defining a first bore portion having a first diameter, said tubular body carrying a tubular reinforcing sleeve made of metal strands embedded in the wall of said tubular body, said catheter defining a tubular, intermediate portion distal to said tubular body, said tubular intermediate portion having side holes, said catheter defining a second bore portion distal to said intermediate portion and side holes, said second bore portion having a second diameter which is less than the first diameter, the second bore portion comprising a pigtail tip, the bore of said catheter extending through the distal end thereof, said intermediate tubular portion having a third bore diameter that is less than the first diameter and greater than the second diameter, said intermediate portion defining a thicker catheter wall than the catheter wall defining said first bore portion, said flexible tubular body being joined to the tubular tip at a junction area between the first bore portion and the intermediate portion.
Claim 8
Dependent Claim
187 words
A catheter which defines a flexible, tubular body and a tubular tip carried at the distal end of said body, at least the majority of said tubular body defining a first bore portion having a first diameter, said tubular body carrying a tubular reinforcing sleeve made of metal strands embedded in the wall of said tubular body, said catheter defining a tubular, intermediate portion distal to said tubular body, said tubular intermediate portion having side holes, said catheter defining a second bore portion distal to said intermediate portion and side holes, said second bore portion having a second diameter which is less than the first diameter, the second bore portion comprising a pigtail tip, the bore of said catheter extending through the distal end thereof, said intermediate tubular portion having a third bore diameter that is less than the first diameter and greater than the second diameter, said intermediate portion defining a thicker catheter wall than the catheter wall defining said first bore portion, said flexible tubular body being joined to the tubular tip at a junction area between the first bore portion and the intermediate portion.
Claim 9
Dependent Claim
30 words
The catheter of claim 6 which defines stepped, bore-reducing areas between (1) the first bore portion and the intermediate portion and (2) the intermediate portion and the second bore portion.
Claim 10
Dependent Claim
145 words
A catheter which defines a flexible, tubular body and a tubular tip carried at the distal end of said body, at least the majority of said tubular body defining a first bore portion having a first diameter; said catheter defining side holes adjacent said distal end, said catheter defining a second bore portion distal to said side holes having a second diameter which is less than the first diameter, the catheter part defining the second bore portion comprising a pigtail tip, the bore of said catheter extending through the distal end thereof; said catheter also defining an intermediate tubular portion between the first and second bore portions, said intermediate portion having a third bore diameter that is less than the first diameter and greater than the second diameter, said intermediate portion defining a thicker catheter wall than the catheter wall defining the first bore portion.
Claim 11
Dependent Claim
145 words
A catheter which defines a flexible, tubular body and a tubular tip carried at the distal end of said body, at least the majority of said tubular body defining a first bore portion having a first diameter; said catheter defining side holes adjacent said distal end, said catheter defining a second bore portion distal to said side holes having a second diameter which is less than the first diameter, the catheter part defining the second bore portion comprising a pigtail tip, the bore of said catheter extending through the distal end thereof; said catheter also defining an intermediate tubular portion between the first and second bore portions, said intermediate portion having a third bore diameter that is less than the first diameter and greater than the second diameter, said intermediate portion defining a thicker catheter wall than the catheter wall defining the first bore portion.
Claim 12
Dependent Claim
30 words
The catheter of claim 8 in which said flexible, tubular body is joined to said tubular tip at a junction area between the first bore portion and the intermediate portion.
Claim 13
Dependent Claim
16 words
The catheter of claim 9 in which said side holes are defined in the intermediate portion.
Claim 14
Dependent Claim
30 words
The catheter of claim 10 which defines stepped, bore-reducing areas between (1) the first bore portion and the intermediate portion and (2) the intermediate portion and the second bore portion.
Claim 15
Dependent Claim
18 words
The catheter of claim 11 in which said tubular body carrier a tubular reinforcing sleeve of metal strands.
Claim 16
Dependent Claim
30 words
The catheter of claim 8 which defines stepped, bore-reducing areas between (1) the first bore portion and the intermediate portion and (2) the intermediate portion and the second bore portion.
Claim 17
Dependent Claim
16 words
The catheter of claim 8 in which said side holes are defined in the intermediate portion.
Claim 18
Dependent Claim
18 words
The catheter of claim 8 in which said tubular body carries a tubular reinforcing sleeve of metal strands.
References Cited (Backward Citations)
US3416531A
Cited
FR2119261A5
Cited
US4573476A
Cited
US4639252A
Cited
US4747840A
Cited
US4863441A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-12-02 | 1995-06-03 | 1995-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-12-02 | 1999-06-03 | 1999-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-12-02 | 2003-06-03 | 2003-12-03 | $7700.00 | Window Closed / Lapsed |