Patent EP0237564B1 successfully refreshed from Google Patents.
EP0237564B1
Expired / Lapsed
EP
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Guiding catheter
Assignee: Raychem Corp
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Filing: 1986-09-22
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Granted: 1991-12-11
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Expires: 2006-09-22
Abstract
Abstract A guiding catheter (10) has incorporated toward its distal end (10a), a flexible member (12) capable of non-uniform elongation to cause the distal end portion to bend and straighten as desired so that it can be maneuvered through and accurately positioned in a tortuous, non-linear conduit containing branches, for example blood vessels. The flexible member (12) comprises interconnected, and preferably braided, filaments with gaps between the filaments. The member (12) has a first configuration that is axially lengthened and a second configuration that is axially shortened. Means (14, 15) are provided to move the member between its first and second configurations. Biasing means (20) are provided to restrict axial lengthening along one side of the flexible member resulting in bending of the catheter tip.
Inventors
- 👤 James Patrick Reed
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-07 23:42
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/01; A61M25/0105; A61M25/0133; A61M25/0147; A61M25/09; A61M25/09016; A61M25/09033
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
260 words
A guiding catheter (10) for negotiating a tortuous, non-linear conduit, the catheter having a longitudinal axis, a proximal end (10b), and a distal end (10a), the catheter comprising: (a) an elongated anchor member (14,64) having a distal portion and a proximal portion; (b) an elongated activating member (15,62) having a distal portion and a proximal portion which extends beyond the proximal portion of the anchor member, and (c) a flexible member (12,66) comprising interconnected filaments attached to the outer surface of the distal portion of the anchor member at a first location (18) and also attached to a distal portion of the activating member at a second location (19), the first and second locations being axially spaced apart from each other, said anchor member being substantially rigid in compression where attached to the flexible member, the flexible member having a first configuration that is radially contracted and axially lengthened and a second configuration that is radially expanded and axially shortened, said flexible member also comprising means (20,65) for preventing axial lengthening of the flexible member along one side thereof, wherein the flexible member in the radially expanded configuration is bent such that the distal end of the catheter is transverse to the longitudinal axis of the catheter, and in the radially contracted configuration is substantially straight; and wherein relative axial movement between the anchor member and the activating member reversibly moves the flexible member from one configuration to the other configuration for varying the amount the distal end of the catheter is transverse to the longitudinal axis of the catheter.
Claim 2
Dependent Claim
260 words
A guiding catheter (10) for negotiating a tortuous, non-linear conduit, the catheter having a longitudinal axis, a proximal end (10b), and a distal end (10a), the catheter comprising: (a) an elongated anchor member (14,64) having a distal portion and a proximal portion; (b) an elongated activating member (15,62) having a distal portion and a proximal portion which extends beyond the proximal portion of the anchor member, and (c) a flexible member (12,66) comprising interconnected filaments attached to the outer surface of the distal portion of the anchor member at a first location (18) and also attached to a distal portion of the activating member at a second location (19), the first and second locations being axially spaced apart from each other, said anchor member being substantially rigid in compression where attached to the flexible member, the flexible member having a first configuration that is radially contracted and axially lengthened and a second configuration that is radially expanded and axially shortened, said flexible member also comprising means (20,65) for preventing axial lengthening of the flexible member along one side thereof, wherein the flexible member in the radially expanded configuration is bent such that the distal end of the catheter is transverse to the longitudinal axis of the catheter, and in the radially contracted configuration is substantially straight; and wherein relative axial movement between the anchor member and the activating member reversibly moves the flexible member from one configuration to the other configuration for varying the amount the distal end of the catheter is transverse to the longitudinal axis of the catheter.
Claim 3
Dependent Claim
11 words
The device of claim 1 in which the filaments are braided.
Claim 4
Dependent Claim
13 words
The device of claim 1 in which the anchor member (14) is tubular.
Claim 5
Dependent Claim
22 words
The device of claim 3 in which the activating member ( 15) is at least partially exterior of the first anchor member.
Claim 6
Dependent Claim
24 words
The device of claim 4 in which the activating member ( 15) is at least partially in the lumen of the anchor member (14).
Claim 7
Dependent Claim
17 words
The device of claim 5 in which the anchor and activating members (14,15) are tubular and coaxial.
Claim 8
Dependent Claim
37 words
The device of claim 6 in which the flexible member (12) is coaxial with the anchor and activating members (14,15) and is attached to the exterior of the anchor member and the exterior of the activating member.
Claim 9
Dependent Claim
45 words
The device of claim 7 in which the flexible member (12) has a distal and proximal portion and the distal portion is attached to the distal portion of the activating member and the proximal portion is attached to the distal portion of the anchor member.
Claim 10
Dependent Claim
15 words
The device of claim 1 in which the activating member ( 15) is a rod.
Claim 11
Dependent Claim
19 words
The device of claim 1 including stop means (68,69) for limiting the degree of bending of the flexible member.
Claim 12
Dependent Claim
255 words
A guiding catheter for negotiating a tortuous, nonlinear conduit, the catheter having a longitudinal axis, a proximal end, and a distal end, the catheter comprising: (a) an elongated anchor member (32,42) having a distal portion and a proximal portion; (b) an elongated activating member (34,46) having a distal portion and a proximal portion which extends beyond the proximal portion of the anchor member; and (c) a flexible member (36,44) comprising interconnected filaments attached to the outer surface of the distal portion of the anchor member at a first location and also attached to a distal portion of the activating member at a second location in a manner such that the point of attachment is offset from the center line of said flexible member, the first and second locations being axially spaced apart from each other, said anchor member being substantially rigid in compression where attached to the flexible member, the flexible member having a first configuration that is radially contracted and axially lengthened and a second configuration that is radially expanded and axially shortened, wherein the flexible member in the radially expanded configuration is bent such that the distal end of the catheter is transverse to the longitudinal axis of the catheter, and in the radially contracted configuration is substantially straight; and wherein relative axial movement between the anchor member and the activating member reversibly moves the flexible member from one configuration to the other configuration for varying the amount the distal end of the catheter is transverse to the longitudinal axis of the catheter.
Claim 13
Dependent Claim
255 words
A guiding catheter for negotiating a tortuous, nonlinear conduit, the catheter having a longitudinal axis, a proximal end, and a distal end, the catheter comprising: (a) an elongated anchor member (32,42) having a distal portion and a proximal portion; (b) an elongated activating member (34,46) having a distal portion and a proximal portion which extends beyond the proximal portion of the anchor member; and (c) a flexible member (36,44) comprising interconnected filaments attached to the outer surface of the distal portion of the anchor member at a first location and also attached to a distal portion of the activating member at a second location in a manner such that the point of attachment is offset from the center line of said flexible member, the first and second locations being axially spaced apart from each other, said anchor member being substantially rigid in compression where attached to the flexible member, the flexible member having a first configuration that is radially contracted and axially lengthened and a second configuration that is radially expanded and axially shortened, wherein the flexible member in the radially expanded configuration is bent such that the distal end of the catheter is transverse to the longitudinal axis of the catheter, and in the radially contracted configuration is substantially straight; and wherein relative axial movement between the anchor member and the activating member reversibly moves the flexible member from one configuration to the other configuration for varying the amount the distal end of the catheter is transverse to the longitudinal axis of the catheter.
Claim 14
Dependent Claim
11 words
The device of claim 11 in which the filaments are braided.
Claim 15
Dependent Claim
16 words
The device of claim 11 or claim 12 in which the anchor member (32,42) is tubular.
Claim 16
Dependent Claim
21 words
The device of claim 13 in which the activating member (34,46) is at least partially exterior of the first anchor member.
Claim 17
Dependent Claim
22 words
The device of claim 14 in which the activating member is at least partially in the lumen of the anchor member (32,42).
Claim 18
Independent Claim
19 words
The device of any one of claims 11 to 15, in which the activating member is a rod (46).
Claim 19
Independent Claim
24 words
The device of any one of claims 11 to 16, including stop means (68,69) for limiting the degree of bending of the flexible member.
References Cited (Backward Citations)
No citation records indexed.
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