Patent DE449886C successfully refreshed from Google Patents.
EP0180348B1
Expired / Lapsed
EP
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Guiding catheter
Assignee: Baxter International Inc
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Filing: 1985-10-04
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Granted: 1992-05-06
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Expires: 2005-10-04
Abstract
No abstract record available.
Inventors
- 👤 David Lyman Swendson
- 👤 Edward Earl Elson
- 👤 Clement Eugene Lieber
- 👤 Michael D. Rold
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 12:21
CPC Classifications
A; A61; A61N; A61N1/00; A61N1/02; A61N1/04; A61N1/05; A61N1/056; A61M; A61M25/00; A61M25/0043; A61M25/0054; A61M25/01; A61M25/0105; A61M2025/0063; A61M25/0021; A61M25/0023; A61M25/0026; A61M25/0032
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
249 words
A guiding catheter capable of being passed through the right side of the heart into the pulmonary artery, said guiding catheter comprising : an elongated catheter body (101) having proximal and distal ends (111, 121), at least one lumen (109) extending longitudinally in the body (101) and a port (72) extending from the lumen (109) to the exterior of the catheter body (101), said port (72) being positioned in relation to the distal end (121) of the catheter such that said port lies in the right ventricle when the catheter extends through the right ventricle into the pulmonary artery; an elongated stiffening clement (64) permanently fixed within the catheter body (101), said stiffening element (64) extending from a location on the proximal side of said port (72) to a location on the distal side of said port, said stiffening element (64) being flexible and sufficiently stiff to cause the catheter to form a gentle curve without forming a kink when the catheter extends through the right ventricle to the pulmonary artery; and said lumen (109) being such that an inner catheter can be passed through the lumen (109) and the port (72) into the right ventricle, characterised in that said stiffener element (64) is curved in its unstressed condition so that said catheter body (101) in the region of said port (72) is curved, said stiffener element (64) is held against rotation in the catheter body (101) and said stiffener element (64) resists torsional displacement of the port (72).
Claim 2
Dependent Claim
62 words
A guiding catheter according to claim 1 including a balloon (65) on said catheter body (101) distally of the port (72), said catheter body (101) having a balloon inflation lumen means (107) communicating with the balloon (65) for use in inflating the balloon (65) and a thermistor (125) carried by the catheter body (101) intermediate said second location and said balloon (65).
Claim 3
Dependent Claim
48 words
A guiding catheter according to claim 1 or claim 2 wherein said catheter body (101) has a stiffener lumen (105) and said stiffener element (64) is in said stiffener lumen (105) and said catheter body (101) has an injectate port (131) which leads from the stiffener lumen (105).
Claim 4
Dependent Claim
51 words
A guiding catheter according to any preceding claim wherein a radial line (144) through the center of the port (72) as viewed in a radial plane forms an angle of no more than about 30 degrees with a radial reference line which bisects the portion of the curve which faces outside.
Claim 5
Dependent Claim
28 words
A guiding catheter according to any preceding claim wherein said stiffening element (64) in an unstressed condition forms a generally circular arc which extends for over 180 degrees.
Claim 6
Dependent Claim
31 words
A guiding catheter according to any preceding claim wherein said stiffening element (64) has a central section of substantially constant stiffness and end portions of lesser stiffness than said central section.
Claim 7
Dependent Claim
44 words
A guiding catheter according to any preceding claim including means for at least partially closing said one lumen (109) adjacent said port (72) without closing said port (72) to facilitate the passage of the inner catheter through the port (72) into the right heart.
Claim 8
Dependent Claim
16 words
A guiding catheter according to claim 7 wherein said closing means (133) includes a radio-opaque plug.
Claim 9
Dependent Claim
43 words
A guiding catheter according to claim 7 or claim 8 wherein said closing means (133) includes a sloping surface (135) facing proximally in said one lumen (109) to facilitate the passage of the inner catheter through the port (72) into the right heart.
References Cited (Backward Citations)
EP0109178A2
Cited
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