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US4679557A
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Electrodynamic transluminal angioplasty system
Assignee: LAWRENCEVILLE-PRINCETON ROAD PRINCETON NEW JERSEY 08540 A CORP OF DE
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Filing: 1984-09-10
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Granted: 1987-07-14
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Expires: 2004-09-10
Abstract
Abstract An electromechanical system which may be used in conjunction with spinning catheters, such as those which have differential cutting burrs, includes an electric prime mover which attaches to an advancer assembly. The advancer assembly has an off-axis drive and apparatus for loading a catheter unit, which is driven through a catheter engagement coupling. The catheter assembly can also include one or two lumens with access ports at the advancer assembly, whereby medicines may be injected or pressure readings may be obtained from the vessel.
Inventors
- 👤 Eric A. Opie
- 👤 Thomas J. Clement
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:43
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/32; A61B17/3205; A61B17/3207; A61B17/320758; A61B17/320016; A61B17/32002; A61B2017/00477; A61B17/22; A61B2017/22072; A61B2017/22074; A61B90/00; A61B90/03; A61B2090/031
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
97 words
An electrodynamic transluminal angioplasty system comprising: (a) a prime mover having a drive shaft; (b) an advancer assembly comprising a body having a saddle formed therein and a carriage which is adapted to move within said saddle; (c) means for connecting a drive wheel in said carriage to said drive shaft of said prime mover; (d) catheter engagement coupling means including a driven wheel for connecting a rotatable catheter to said drive wheel, whereby said driven wheel in said catheter engagement coupling means can be driven by said drive wheel in said carriage thereby rotating said catheter.
Claim 2
Dependent Claim
97 words
An electrodynamic transluminal angioplasty system comprising: (a) a prime mover having a drive shaft; (b) an advancer assembly comprising a body having a saddle formed therein and a carriage which is adapted to move within said saddle; (c) means for connecting a drive wheel in said carriage to said drive shaft of said prime mover; (d) catheter engagement coupling means including a driven wheel for connecting a rotatable catheter to said drive wheel, whereby said driven wheel in said catheter engagement coupling means can be driven by said drive wheel in said carriage thereby rotating said catheter.
Claim 3
Dependent Claim
16 words
The electrodynamic transluminal angioplasty system of claim 1 wherein said a prime mover is electrically operated.
Claim 4
Dependent Claim
19 words
The electrodynamic transluminal angioplasty system of claim 2 further comprising a variable power supply for controlling said prime mover.
Claim 5
Dependent Claim
20 words
The electrodynamic transluminal angioplasty system of claim 3 wherein said power supply includes torque limiting means for driving said catheter.
Claim 6
Dependent Claim
17 words
The electrodynamic transluminal angioplasty system of claim 1 wherein said drive shaft is a flexible drive shaft.
Claim 7
Dependent Claim
39 words
The electrodynamic transluminal angioplasty system of claim 1 wherein said advancer assembly includes a guide rail within said saddle on which said carriage is adapted to slide and on which said carriage can be pivotally raised within said saddle.
Claim 8
Dependent Claim
22 words
The electrodynamic transluminal angioplasty system of claim 6 wherein said carriage includes means for releasably receiving and holding said catheter engagement coupling.
Claim 9
Dependent Claim
39 words
The electrodynamic transluminal angioplasty system of claim 7 in which said catheter engagement coupling includes a driven wheel which is frictionally engaged by said drive wheel in said carriage when said catheter engagement coupling is pivoted into said carriage.
Claim 10
Dependent Claim
16 words
The electrodynamic transluminal angioplasty system of claim 8 wherein said drive wheel is made of aluminum.
Claim 11
Dependent Claim
16 words
The electrodynamic transluminal angioplasty system of claim 9 wherein said driven wheel is made of urethane.
Claim 12
Dependent Claim
34 words
The electrodynamic transluminal angioplasty system of claim 1 wherein said rotatable catheter includes a hollow, axial lumen through which a guide wire which has been introduced into a vessel of a patient will pass.
Claim 13
Dependent Claim
29 words
The electrodynamic transluminal angioplasty system of claim 11 further comprising means for accessing the lumen formed between said guide wire and said hollow drive shaft of said rotatable catheter.
Claim 14
Dependent Claim
32 words
The electrodynamic transluminal angioplasty system of claim 1 further comprising a guide sheath which is introduced into the vessel of a patient through which said rotatable catheter is adapted to be introduced.
Claim 15
Dependent Claim
25 words
The electrodynamic transluminal angioplasty system of claim 13 further comprising valve means for accessing the lumen formed between said rotatable catheter and said guide sheath.
References Cited (Backward Citations)
US4445509A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-07-13 | 1991-01-12 | 1991-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-07-13 | 1995-01-12 | 1995-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-07-13 | 1999-01-12 | 1999-07-14 | $7700.00 | Window Closed / Lapsed |