US4619263A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable rotation limiter device for steerable dilatation catheters
Assignee: Abbott Cardiovascular Systems Inc
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Filing: 1985-05-10
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Granted: 1986-10-28
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Expires: 2005-05-10
Abstract
Abstract Adjustable rotation limiter device for use with a steerable balloon type dilatation catheter of the type having a flexible core wire extending therethrough and an adapter adapted to be secured to the proximal extremity of a dilatation catheter. The adapter has at least a first arm with a fitting thereon. A sealing is disposed within the fitting. A thumb screw having a first knob carrying a threaded axially extending member is threaded into the fitting and is adapted to engage the seal whereby when a core wire extends through the fitting, the seal, and the thumb screw, the rotation of the thumb screw in one direction will cause sealing engagement between the seal and the core wire. A torque knob having a second knob carrying an axially extending member is threaded into said thumb screw. A rotation limiter is carried by one of the knobs and has a portion thereof extending over the other of the knobs which serves to limit the rotational movement of the second knob with respect to the first knob.
Inventors
- 👤 Jeffrey S. Frisbie
- 👤 Wilfred J. Samson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:09
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/01
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
154 words
An adjustable rotation limiter device for use with a steerable balloon type dilatation catheter of the type having a flexible core wire extending therethrough, an adapter adapted to be secured to the proximal extremity of a dilatation catheter, the adapter having at least a first arm, a fitting on the first arm, sealing means disposed within the fitting, a thumb screw having a first knob carrying a threaded axially extending member threaded into the fitting and being adapted to engage the sealing means to establish a sealing engagement between the sealing means and the core wire, a torque knob having a second knob carrying an axially extending member threaded into said thumb screw and limit means carried by one of said knobs and having a portion thereof extending over the other of said first and second knobs and serving to limit the rotational movement of the second knob with respect to the first knob.
Claim 2
Dependent Claim
154 words
An adjustable rotation limiter device for use with a steerable balloon type dilatation catheter of the type having a flexible core wire extending therethrough, an adapter adapted to be secured to the proximal extremity of a dilatation catheter, the adapter having at least a first arm, a fitting on the first arm, sealing means disposed within the fitting, a thumb screw having a first knob carrying a threaded axially extending member threaded into the fitting and being adapted to engage the sealing means to establish a sealing engagement between the sealing means and the core wire, a torque knob having a second knob carrying an axially extending member threaded into said thumb screw and limit means carried by one of said knobs and having a portion thereof extending over the other of said first and second knobs and serving to limit the rotational movement of the second knob with respect to the first knob.
Claim 3
Dependent Claim
45 words
A device as in claim 1 wherein said limit means includes a limit member and means for adjustably positioning said limit member axially of said one knob whereby the number of revolutions of said second knob with respect to said first knob may be adjusted.
Claim 4
Dependent Claim
34 words
A device as in claim 2 wherein said limit member is provided with a cutout forming first and second spaced apart generally parallel lips adapted to engage surfaces of said first and second knobs.
Claim 5
Dependent Claim
32 words
A device as in claim 3 wherein said limit member is provided with an elongate slot and screw means extending through said slot and securing said limit member to said first knob.
Claim 6
Dependent Claim
27 words
A device as in claim 4 wherein said screw means is provided with means inhibiting adjustment of the position of the limit member outside of the factory.
Claim 7
Dependent Claim
21 words
A device as in claim 1 wherein said limit means includes a limit member formed integral with one of said knobs.
Claim 8
Dependent Claim
38 words
A device as in claim 6 wherein said limit means includes first and second limit members formed integral with one of said knobs, said limit members having inwardly extending lips adapted to engage the other of said knobs.
Claim 9
Dependent Claim
26 words
A device as in claim 7 wherein the other of said knobs is provided with a chamfer engagable by said arms carried by said one knob.
Claim 10
Dependent Claim
62 words
A device as in claim 1 wherein said limit means includes first and second limit members carried by one of said knobs and an annular ring secured to the distal extremities of the limit members, said annular member being adapted to engage the underside of the other of said knobs to inhibit further rotation of one knob with respect to the other.
Claim 11
Dependent Claim
160 words
An adjustable rotation limiter for use with a steerable balloon-type dilatation catheter of the type having a flexible core wire extending therethrough, an adapter adapted to be secured to the proximal extremity of the dilatation catheter, the adapter having a first arm, the core wire extending therethrough and means carried by the first arm for forming a liquid-tight seal between the arm and core wire, first and second knobs, means for securing one of the knobs to the catheter and means for securing the core wire to the other of the knobs, means interconnecting the first and second knobs whereby one knob can be rotated with respect to the other and rotation limiting means carried by said first and second knobs, said rotation limiting means including means carried by first of said knobs and underlying the other of said knobs to prevent rotation of said first knob with respect to the second knob more than a predetermined number of revolutions.
Claim 12
Dependent Claim
160 words
An adjustable rotation limiter for use with a steerable balloon-type dilatation catheter of the type having a flexible core wire extending therethrough, an adapter adapted to be secured to the proximal extremity of the dilatation catheter, the adapter having a first arm, the core wire extending therethrough and means carried by the first arm for forming a liquid-tight seal between the arm and core wire, first and second knobs, means for securing one of the knobs to the catheter and means for securing the core wire to the other of the knobs, means interconnecting the first and second knobs whereby one knob can be rotated with respect to the other and rotation limiting means carried by said first and second knobs, said rotation limiting means including means carried by first of said knobs and underlying the other of said knobs to prevent rotation of said first knob with respect to the second knob more than a predetermined number of revolutions.
Claim 13
Dependent Claim
42 words
A rotation limiter device as in claim 10 wherein said rotating limiting means includes a pair of diametrically disposed arms carried by the first knob and an annular member underlying the second knob and secured to the distal extremities of the arms.
Claim 14
Dependent Claim
37 words
A rotation limiter device as in claim 10 wherein said means permitting relative rotation between the first and second knobs includes an externally threaded extension member carried by the first knob and threaded into the second knob.
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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) | 1989-10-27 | 1990-04-28 | 1990-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-10-27 | 1994-04-28 | 1994-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-10-27 | 1998-04-28 | 1998-10-28 | $7700.00 | Window Closed / Lapsed |