EP0165727A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Catheter rotary assembly
Assignee: Abbott Cardiovascular Systems Inc
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Filing: 1985-05-28
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Granted: —
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Expires: 2005-05-28
Abstract
Abstract @ Adjustable rotation limiter device (11) for use with a steerable ballon type dilatation catheter (12) of the type having a flexible core wire (13) extending therethrough and an adapter (21) adapted to be secured to the proximal extremity of a dilatation catheter (12). The adapter (21) has at least a first arm (22) with a fitting (31) thereon. A sealing means (32) is disposed within the fitting (31). A thumb screw (33) having a first knob (34) carrying a threaded axially extending member (36) is threaded into the fitting (31) and is adapted to engage the sealing means (32) whereby when the core wire (13) extends through the fitting (31), the sealing member (32), and the thumb screw (33), rotation of the thumb screw (33) in one direction will cause sealing engagement between the sealing member (32) and the core wire (13). A torque knob (38) having a second knob (39) carrying an axially extending member (41) is threaded into the thumb screw (33). A rotation limiter (46) is carried by one (39) of the knobs (34,39) and has a portion (48) thereof extending over the other (34) of the knobs which serves to limit relative movement between the knobs (34,39).
Inventors
- 👤 Jeffrey S. Frisbie
- 👤 Wilfred Joseph Samson
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 10:48
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/01
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
177 words
1 . An adjustable rotation limiter device (11) for use wi-th a steerable balloon-type dilatation catheter (12) c= the type having a flexible core wire (13) extending therethrough, characterised by an adapter (21) adapted to be secured to the proximal extremity of the dilatation catheter (12), the adapter (21) having a first arm (22), the core wire (13) extending therethrough and means carried by the first arm (22) for forming a liquid-tight seal between the arm (22) and the core wire(13), first and second knobs (34,39 or 61,67 or 77,81), means for securing one of the knobs to the catheter and means for securing the core wire (13) to the other of the knobs, means (41,68,82) interconnecting the first and second knobs whereby one knob can be rotated with respect to the other, and rotation limiting means (46 or 69 or 83) including means carried by one 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 2
Dependent Claim
177 words
1 . An adjustable rotation limiter device (11) for use wi-th a steerable balloon-type dilatation catheter (12) c= the type having a flexible core wire (13) extending therethrough, characterised by an adapter (21) adapted to be secured to the proximal extremity of the dilatation catheter (12), the adapter (21) having a first arm (22), the core wire (13) extending therethrough and means carried by the first arm (22) for forming a liquid-tight seal between the arm (22) and the core wire(13), first and second knobs (34,39 or 61,67 or 77,81), means for securing one of the knobs to the catheter and means for securing the core wire (13) to the other of the knobs, means (41,68,82) interconnecting the first and second knobs whereby one knob can be rotated with respect to the other, and rotation limiting means (46 or 69 or 83) including means carried by one 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 3
Dependent Claim
48 words
A device as claimed in Claim 1, characterised in that said rotation limiting means includes a pair of diametrically disposed arms (83) carried by the second knob (81) and an annular member (84) underlying the first knob (77) and secured to the distal extremities of the arms (83).
Claim 4
Dependent Claim
46 words
A device as claimed in Claim I or Claim 2, characterised in that said means permitting relative rotation between the first and second knobs includes an externally threaded extension member (41 or 68 or 82) carried by the second knob and threaded into the first knob.
Claim 5
Dependent Claim
183 words
An adjustable rotation limiter device (11) for use with a steerable balloon type dilatation catheter (12) of the type having a flexible core wire (13) extending therethrough, characterised by an adapter adapted to be secured to the proximal extremity of the dilatation catheter (12), the adapter having at least a first arm (22), a fitting (31) on the first arm (22), sealing means (32) disposed within the fitting (31), a thumb screw (33) having a first knob (34) carrying a threaded axially extending member (36) threaded into the fitting (31) and being adapted to engage the sealing means (32) to establish a sealing engagement between the sealing means (32) and the core wire (13), a torque knob (38) having a second knob (39) carrying an axially extending member (41) threaded into said thumb screw (33) and limit means (46) carried by one of said knobs (34 or 39) and having a portion thereof extending over the other of said first and second knobs (34,39) and serving to limit the rotational movement of the second knob (39) with respect to the first knob (34).
Claim 6
Dependent Claim
183 words
An adjustable rotation limiter device (11) for use with a steerable balloon type dilatation catheter (12) of the type having a flexible core wire (13) extending therethrough, characterised by an adapter adapted to be secured to the proximal extremity of the dilatation catheter (12), the adapter having at least a first arm (22), a fitting (31) on the first arm (22), sealing means (32) disposed within the fitting (31), a thumb screw (33) having a first knob (34) carrying a threaded axially extending member (36) threaded into the fitting (31) and being adapted to engage the sealing means (32) to establish a sealing engagement between the sealing means (32) and the core wire (13), a torque knob (38) having a second knob (39) carrying an axially extending member (41) threaded into said thumb screw (33) and limit means (46) carried by one of said knobs (34 or 39) and having a portion thereof extending over the other of said first and second knobs (34,39) and serving to limit the rotational movement of the second knob (39) with respect to the first knob (34).
Claim 7
Dependent Claim
54 words
A device as claimed in Claim 4, characterised in that said limit means includes a limit member (46) and means for adjustably positioning said limit member (46) axially of one of said knobs, (34,39) whereby the number of revolutions of said second knob (34) with respect to said first knob (39) may be adjusted.
Claim 8
Dependent Claim
41 words
A device as claimed in Claim 5, characterised in that said limit member (46) is provided with a cutout (47) forming first and second spaced apart generally parallel lips (48,49) adapted to engage surfaces of said first and second knobs (34,49).
Claim 9
Dependent Claim
48 words
A device as claimed in Claim 5 or Claim 6, characterised in that said limit means (46) is provided with an elongate slot (51) and screw means (52) extending through said slot (51) and securing said limit member (46) to one of said first and second knobs (34,39).
Claim 10
Dependent Claim
32 words
A device as claimed in Claim 7, characterised in that said screw means (52) is provided with means inhibiting adjustment of the position of the limit member (46) outside of the factory.
Claim 11
Dependent Claim
26 words
A device as claimed in Claim 4, characterised in that said limit means includes a limit member (69) formed integrally with one of said knobs (67).
Claim 12
Dependent Claim
46 words
A device as claimed in Claim 9, characterised in that said limit means includes first and second limit members (69) formed integral with one of said knobs (67), said limit members (69) having inwardly extending lips (71) adapted to engage the other of said knobs (61).
Claim 13
Dependent Claim
35 words
II. A device as claimed in Claim 10, characterised in that the other of said knobs (61) is provided with a chamfer (62) engagable by said limit members (69) carried by said one knob (67).
Claim 14
Dependent Claim
71 words
A device as claimed in Claim 4, characterised in that said limit means includes first and second limit members (83) carried by one of said knobs (81) and an annular member (84) secured to the distal extremities of the limit members (83), said annular member (84) being adapted to engage the underside of the other of said knobs (77) to inhibit further rotation of one knob with respect to the other.
References Cited (Backward Citations)
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