
US Patent No: 4,976,691
Number of patents in Portfolio can not be more than 2000
Topless catheters
Stats
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Dec 11, 1990
Issued date -
Jan 23, 1989
filing date -
07/301,179
serial no -
Expired
status
Importance
Abstract
A topless catheter, which can be used as either a guiding catheter for guiding balloon dilatation catheters into a body lumen, or as a diagnostic catheter for conducting radio opaque dyes into a predetermined body lumen or both is disclosed. The topless catheter comprises a cylinderical catheter shaft, integrally connected to an arcuate topless guiding finger. The guiding finger is adapted for placement proximate to, or partially within a predetermined blood vessel for subselective placement of a dilation balloon catheter. By virtue of the manner in which the guiding finger is configured, blood flow through the more distal arteries is substantially unimpeded without detracting from the support and guidance features, found in conventional guiding catheters.
First Claim
Related Publications
International Classification(s)
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Cited Art
| Patent Info | (Count) | # Cites | Year |
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| 4,762,129 Dilatation catheter | 578 | 1986 | |
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| 4,329,993 Catheter with trans-luminal electrical conductor | 69 | 1980 | |
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| 4,738,666 Variable diameter catheter | 303 | 1987 | |
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| 4,581,017 Catheter systems | 410 | 1983 | |
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| 4,563,181 Fused flexible tip catheter | 219 | 1983 | |
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| 4,547,193 Catheter having embedded multi-apertured film | 98 | 1984 | |
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| 4,826,480 Omentum diffusion catheter | 29 | 1987 | |
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| 4,461,280 Surgical instrument and process | 68 | 1983 | |
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| 4,233,983 Catheter provided with a safety-fixing member, remotely adjustable and expandible by introducing fluids | 36 | 1978 | |
| 4,338,930 Airway intubator | 39 | 1980 | |
| 4,423,725 Multiple surgical cuff | 421 | 1982 | |
| 4,689,040 Tip for a phacoemulsification needle | 49 | 1985 | |
| 4,784,639 Catheter and method of inserting catheter | 61 | 1987 | |
| 4,822,345 Controllable flexibility catheter | 98 | 1988 | |