Patent US4525163A successfully refreshed from Google Patents.
EP0063859A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Infusion catheter
Assignee: American Hospital Supply Corp
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Filing: 1982-03-03
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Granted: —
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Expires: 2002-03-03
Abstract
Abstract A catheter (11) comprising an alongated flexible tube (17) having an elongated passage extending axially through the tube (17) between proximal (53) and distal (55) openings and a helically wound wire (25) engaging the peripheral wall of the tube (17) and providing a portion of the peripheral wall (17) with an uneven contour. The tube includes a radiopaque marker (23) at the distal and of the catheter. The radiopaque marker (23) is molded from a biocompatible metal powder and a thermoplastic binder. The catheter (11) is adapted for use with an angiography catheter (57), and it is configured to provide automatic orientation of the distal end portion (47) of the catheter (11) as such distal end portion (47) emerges from the distal opening (65) of the angiography catheter (57).
Inventors
- 👤 William Ganz
- 👤 Clement Eugene Lieber
- 👤 Ronald Jay Solar
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 12:40
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/0043; A61M25/0045; A61B; A61B6/00; A61B6/50; A61B6/504; A61B6/48; A61B6/481; A61M2025/0098; A61M25/0009; A61M25/01; A61M25/0105; A61M25/0108
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
174 words
A catheter comprising: an elongated flexible tube having a distal end, a peripheral wall, proximal and distal openings and an elongated passage extending generally axially through the tube between said openings; a helically wound wire engaging the peripheral wall of the tube, said helically wound wire including a plurality of turns and providing increased column strength, said tube with said helically wound wire therein being flexible; said wire having an axial cross-sectional dimension which extends axially of said passage and a radial cross-sectional dimension which extends radially of said passage, said axial cross-sectional dimension being greater than said radial cross-sectional dimension; and said helically wound wire having an outer peripheral surface and being wound and configured so as to provide said outer peripheral surface with an anticlastic curvature, said tube being in tight engagement with the outer peripheral surface of said helically wound wire and being deformed thereby so as to provide the outer peripheral surface of the tube with an uneven contour over at least a portion of the length of the tube.
Claim 2
Dependent Claim
174 words
A catheter comprising: an elongated flexible tube having a distal end, a peripheral wall, proximal and distal openings and an elongated passage extending generally axially through the tube between said openings; a helically wound wire engaging the peripheral wall of the tube, said helically wound wire including a plurality of turns and providing increased column strength, said tube with said helically wound wire therein being flexible; said wire having an axial cross-sectional dimension which extends axially of said passage and a radial cross-sectional dimension which extends radially of said passage, said axial cross-sectional dimension being greater than said radial cross-sectional dimension; and said helically wound wire having an outer peripheral surface and being wound and configured so as to provide said outer peripheral surface with an anticlastic curvature, said tube being in tight engagement with the outer peripheral surface of said helically wound wire and being deformed thereby so as to provide the outer peripheral surface of the tube with an uneven contour over at least a portion of the length of the tube.
Claim 3
Dependent Claim
22 words
A catheter according to claim 1 wherein said tube includes heat shrink tubing shrunk into tight engagement with said helically wound wire.
Claim 4
Dependent Claim
59 words
A catheter according to claim 1 or claim 2 wherein said distal end portion extends beyond the end of the helically wound wire so that said distal end portion is more flexible than the portion of said tube which is supported by said helically wound wire and said tube includes radiopaque marker means at the-distal end of said tube.
Claim 5
Dependent Claim
30 words
A catheter according to any one of claims 1 to 3 including radiopaque marker means adjacent said distal end, said marker means including a biocompatible metal powder and a binder.
Claim 6
Dependent Claim
27 words
A catheter according to claim 3 or claim 4 wherein said distal end portion has at least one bend section therein spaced from said radiopaque marker means.
Claim 7
Dependent Claim
80 words
A catheter comprising: an elongated, flexible tube having a distal end, a peripheral wall, proximal and distal openings and an elongated passage extending through the tube between said openings; flexible supporting means for supporting the tube over at least a portion of its length, said tube and sup- porting means combination being flexible; radiopaque marker means adjacent said distal end; and said radiopaque marker means including a biocompatible metal powder having a specific gravity greater than 11 and a binder.
Claim 8
Dependent Claim
80 words
A catheter comprising: an elongated, flexible tube having a distal end, a peripheral wall, proximal and distal openings and an elongated passage extending through the tube between said openings; flexible supporting means for supporting the tube over at least a portion of its length, said tube and sup- porting means combination being flexible; radiopaque marker means adjacent said distal end; and said radiopaque marker means including a biocompatible metal powder having a specific gravity greater than 11 and a binder.
Claim 9
Dependent Claim
25 words
A catheter according to any one of claims 4 to 6 wherein said biocompatible metal is selected from the group consisting of tantalum and gold.
Claim 10
Dependent Claim
39 words
.8. A catheter according to any one of claims 4 to 6 wherein said biocompatible metal includes tantalum and tantalum is present in an amount equal to at least about 75 percent by weight of the radiopaque marker means.
Claim 11
Dependent Claim
83 words
A catheter according to any one of claims 6 to 8 wherein said tube includes flexible tubing extending for substan- tially the full length of said tube and terminating in an outer end, said binder and said tubing being construct- led of thermoplastic or elastomeric materials which can be fused together with heat and pressure, said radiopaque marker means including a tubular section mounted on the outer end of said tubing to define said distal end, said tubular section being flexible and resilient.
Claim 12
Dependent Claim
59 words
A catheter as defined in claim 9 wherein said distal end portion extends beyond the end of said flexible supporting means so that the distal end portion is more flexible than the portion of said tube which is supported by said supporting means, and said distal end portion has at least one bend section spaced from said tubular section.
Claim 13
Dependent Claim
23 words
A catheter according to claim 10 wherein said distal end portion has a second bend section, said bend sections being in different planes.
Claim 14
Dependent Claim
124 words
A catheter comprising: an elongated flexible tube having a distal end, a peripheral wall, proximal and distal openings and an elongated passage extending through the tube between said openings; flexible supporting means for supporting said tube, said tube and supporting means combination being flexible; said tube having a distal end portion which extends beyond the end of the flexible supporting means; said tube including flexible tubing extending for substantially the full length of said tube and a radiopaque tubular section mounted on said tubing and forming the distal end of said tube, said radiopaque tubular section being flexible; and said distal end portion having at least one resilient orientation bend section therein and a passage-seeking bend section, said bend sections lying in different planes.
Claim 15
Dependent Claim
124 words
A catheter comprising: an elongated flexible tube having a distal end, a peripheral wall, proximal and distal openings and an elongated passage extending through the tube between said openings; flexible supporting means for supporting said tube, said tube and supporting means combination being flexible; said tube having a distal end portion which extends beyond the end of the flexible supporting means; said tube including flexible tubing extending for substantially the full length of said tube and a radiopaque tubular section mounted on said tubing and forming the distal end of said tube, said radiopaque tubular section being flexible; and said distal end portion having at least one resilient orientation bend section therein and a passage-seeking bend section, said bend sections lying in different planes.
Claim 16
Dependent Claim
17 words
A catheter according to claim 12 wherein said distal end portion has a second orientation bend section.
Claim 17
Dependent Claim
58 words
A catheter according to claim 13 wherein said one orientation bend section lies between said second orientation bend section and said passage-seeking bend section, said orientation bend sections lying essentially in the same plane and said one orientation bend section having an included angle which is substantially greater than the included angle of said second orientation bend section.
Claim 18
Dependent Claim
43 words
A catheter according to any. one of claims 12 to 14 wherein the passage-seeking bend section has included angle of approximately 90 degrees and the plane of the passage- seeking bend section extends generally transverse to the plane of the orientation bend section(s).
Claim 19
Dependent Claim
49 words
A catheter according to any one of claims 12 to 15 wherein said tubing at one of said bend sections has an inner concave region and an outer convex region, said tubing having a peripheral wall which is thicker at said inner concave region than said outer convex region.
Claim 20
Independent Claim
206 words
A method of orienting a member to be oriented utilizing an orienting member, said method comprising: providing an elongated orienting member having a distal end at at least one bend section adjacent the distal end thereof; providing an elongated flexible member to be oriented having a distal end portion, a distal end, at least one resilient orientation bend section in said distal end portion and at least one passage-seeking bend section adjacent said distal end; at least one of said members being an outer member and having distal and proximal openings and a passage extending between said openings land the other of said members being an inner member adapted to be within the outer member; positioning the orienting member within a human body; and advancing the member to be oriented along the orienting member with said inner member being within said outer ' member at least until a portion of the passage-seeking bend section extends beyond the distal end of the orient- ing member with the orientation bend section and the bend section of the orienting member cooperating to angularly orient the passage-seeking bend section whereby the pas- ,sage-seeking bend section projects from the distal end of the orienting member in approximately the desired angular orientation.
Claim 21
Independent Claim
206 words
A method of orienting a member to be oriented utilizing an orienting member, said method comprising: providing an elongated orienting member having a distal end at at least one bend section adjacent the distal end thereof; providing an elongated flexible member to be oriented having a distal end portion, a distal end, at least one resilient orientation bend section in said distal end portion and at least one passage-seeking bend section adjacent said distal end; at least one of said members being an outer member and having distal and proximal openings and a passage extending between said openings land the other of said members being an inner member adapted to be within the outer member; positioning the orienting member within a human body; and advancing the member to be oriented along the orienting member with said inner member being within said outer ' member at least until a portion of the passage-seeking bend section extends beyond the distal end of the orient- ing member with the orientation bend section and the bend section of the orienting member cooperating to angularly orient the passage-seeking bend section whereby the pas- ,sage-seeking bend section projects from the distal end of the orienting member in approximately the desired angular orientation.
References Cited (Backward Citations)
No citation records indexed.
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