US5034005A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radiopaque marker
Assignee: E-Z-M Inc
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Filing: 1990-07-09
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Granted: 1991-07-23
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Expires: 2010-07-09
Abstract
Abstract A radiopaque marker usable with catheters is provided. The marker is shaped and dimensioned to fit within a catheter lumen. The marker has an annular sidewall which defines a marker lumen. The marker has a proximal end and a distal end. It further includes securing barbs to prevent the marker from exiting from the catheter lumen.
Inventors
- 👤 William M. Appling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:31
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/01; A61M25/0105; A61M25/0108
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
78 words
A radiopaque marker for use with catheters the marker comprising: a marker body shaped and dimensioned to fit within a catheter having a narrow distal end, the marker body having a side wall defining a marker lumen, the marker body having a proximal end and a distal end, the distal end of the marker being narrower than its proximal end; and securing means associated with said marker body to prevent the marker from exiting from the catheter lumen.
Claim 2
Dependent Claim
78 words
A radiopaque marker for use with catheters the marker comprising: a marker body shaped and dimensioned to fit within a catheter having a narrow distal end, the marker body having a side wall defining a marker lumen, the marker body having a proximal end and a distal end, the distal end of the marker being narrower than its proximal end; and securing means associated with said marker body to prevent the marker from exiting from the catheter lumen.
Claim 3
Dependent Claim
65 words
A radiopaque marker for use with catheters the marker comprising: a marker body shaped and dimensioned to fit within a catheter lumen, the marker body having a side wall defining a marker lumen, the marker having a proximal end and a distal end; and a plurality of barbs formed on the marker side wall, the barbs capable of securing the marker to the catheter lumen.
Claim 4
Dependent Claim
65 words
A radiopaque marker for use with catheters the marker comprising: a marker body shaped and dimensioned to fit within a catheter lumen, the marker body having a side wall defining a marker lumen, the marker having a proximal end and a distal end; and a plurality of barbs formed on the marker side wall, the barbs capable of securing the marker to the catheter lumen.
Claim 5
Dependent Claim
53 words
The marker of claim 1 wherein said securing means includes a plurality of barbs formed on the marker sidewall, the barbs capable of securing the marker to the catheter lumen, the barbs together with the relative shapes and dimensions of the catheter lumen and marker holding hold the marker in the catheter lumen.
Claim 6
Dependent Claim
15 words
The marker of claim 1 or 2 wherein said marker is formed of stainless steel.
Claim 7
Dependent Claim
16 words
The marker of claim 1 or 2 wherein said marker is about 0.2 inches in length.
Claim 8
Dependent Claim
39 words
The marker of claim 1 or 2 wherein the proximal end of the marker has an outer diameter of about 0.039 inches and wherein the marker is used with a catheter having an inner diameter of about 0.038 inches.
Claim 9
Dependent Claim
39 words
The marker of claim 1 or 2 wherein the proximal end of the marker has an outer diameter of about 0.050 inches, and wherein the marker is used with a catheter having an inner diameter of about 0.047 inches.
Claim 10
Dependent Claim
36 words
The marker on claim 3 wherein the proximal end of the marker has an outer diameter of about 0.039 and wherein the marker is used with a catheter having an inner diameter of about 0.038 inches.
Claim 11
Dependent Claim
37 words
The marker of claim 3 wherein the proximal end of the marker has an outer diameter of about 0.050 inches, and wherein the marker is used with a catheter having an inner diameter of about 0.047 inches.
Claim 12
Dependent Claim
19 words
The marker of claim 1 or 2 wherein said marker lumen has an inner diameter of about 0.023 inches.
Claim 13
Dependent Claim
32 words
The marker of claim 2 wherein each barb is comprised of a flat edge having a length of about 0.010 inches and an angled edge having a length of about 0.015 inches.
Claim 14
Dependent Claim
11 words
The marker of claim 2 wherein each barb has a groove.
Claim 15
Dependent Claim
17 words
The marker of claim 2 wherein the grooves have a depth of about 0.003 to 0.005 inches.
Claim 16
Dependent Claim
21 words
The marker of claim 1 or 2 wherein the marker includes guide means of guiding a guidewire into the marker lumen.
Claim 17
Dependent Claim
22 words
The marker of claim 14 wherein the guide means is a truncated conical zone on the proximal interior surface of the marker.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-07-22 | 1995-01-21 | 1995-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-07-22 | 1999-01-21 | 1999-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-07-22 | 2003-01-21 | 2003-07-23 | $7700.00 | Window Closed / Lapsed |