CA1132876A
Expired / Lapsed
CA
⏱️ 0.0 years remaining
Balloon catheter with rotatable support
Assignee: Datascope Corp
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Filing: 1979-04-11
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Granted: 1982-10-05
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Expires: 1999-04-11
Abstract
Abstract ABSTRACT OF THE DISCLOSURE An inflatable and deflatable balloon catheter is disclosed. The inflatable chamber of the catheter is supported about an elongated support member of small diameter. One end of the support member is rotatable relative to the chamber wherein the chamber is adapted to being compactly twisted about the support member upon swiveling or rotation of the support member. The compactly twisted chamber has a small diameter whereby insertion of the catheter through a small incision and guiding thereof in a small body canal or passage is facilita-ted. A smooth-walled sheath of low friction material is dis-closed for enclosing the twisted chamber to facilitate atrau-matic entry of the catheter into the incision or body opening and for facilitating insertion and movement of the catheter. The support member is preferably made of a material which may be formed during use into a desired axial configuration by bending. Balloon catheters according to the present invention are advantageously used for intra-aortic balloon pumping.
Inventors
- 👤 Bruce L. Hanson
- 👤 Sidney Wolvek
Bibliographic Details
Application Number
—
Jurisdiction
CA
Data Source
google_patents
Last Synchronized
2026-11-02 07:05
CPC Classifications
—
Claims Analysis
Total Claims: 37
Claim 1
Independent Claim
159 words
A catheter comprising an inflatable and deflatable chamber having a proximal end and a distal end, said chamber in use being adapted to have substantially the same surface area when inflated and when deflated, a catheter tube portion con-nected at or adjacent an end thereof to the proximal end of said chamber and having a passage communicating with the interior of said chamber for admitting fluid into and with-drawing fluid from said chamber, support means for supporting said chamber extending in said chamber from the distal end thereof to at least said catheter tube portion, said support means being rotatably coupled to said chamber to permit relative angular motion between said support means and said chamber when said chamber is twisted about its longitudinal axis such that a configuration of said catheter may be obtained in which said chamber is wrapped about said support means, whereby insertion of said catheter into a body passageway or the like is aided.
Claim 2
Dependent Claim
159 words
A catheter comprising an inflatable and deflatable chamber having a proximal end and a distal end, said chamber in use being adapted to have substantially the same surface area when inflated and when deflated, a catheter tube portion con-nected at or adjacent an end thereof to the proximal end of said chamber and having a passage communicating with the interior of said chamber for admitting fluid into and with-drawing fluid from said chamber, support means for supporting said chamber extending in said chamber from the distal end thereof to at least said catheter tube portion, said support means being rotatably coupled to said chamber to permit relative angular motion between said support means and said chamber when said chamber is twisted about its longitudinal axis such that a configuration of said catheter may be obtained in which said chamber is wrapped about said support means, whereby insertion of said catheter into a body passageway or the like is aided.
Claim 3
Dependent Claim
41 words
The catheter recited in claim 1, wherein said support means is relatively rotatably coupled to the catheter tube portion at or adjacent the proximal end of said chamber and non-rotatably connected to said chamber at the distal end of said chamber.
Claim 4
Dependent Claim
24 words
The catheter recited in claim 2, wherein said chamber is non-rotatably connected to said catheter tube por-tion at the proximal end of said chamber.
Claim 5
Dependent Claim
28 words
The catheter recited in claim 1, wherein said support means is relatively rotatably coupled to the catheter tube portion at or adjacent the proximal end of said chamber.
Claim 6
Dependent Claim
22 words
The catheter recited in claim 4, wherein said chamber is connected at the proximal end thereof non-rotatably to said catheter tube portion.
Claim 7
Dependent Claim
62 words
The catheter recited in claim 5, wherein said catheter tube portion terminates in an opening which communicates the interior of said chamber and the interior of said catheter tube portion and wherein said support means comprises a rod-like member with one end thereof rotatably disposed in said opening and the other end thereof non-rotatably connected to the distal end of said chamber.
Claim 8
Dependent Claim
44 words
The catheter recited in claim 6 and further com-prising a tip member disposed at the distal end of said chamber, said chamber terminating at said tip member and being connected fluid-tightly thereto, and wherein said rod-like member is non-rotatably connected to said tip member.
Claim 9
Dependent Claim
23 words
The catheter recited in claim 6, wherein said support means includes means for limiting axial movement of said rod-like member in said opening;
Claim 10
Dependent Claim
24 words
The catheter recited in claim 8, wherein said means comprises an enlarged section of said rod-like member disposed within said chamber adjacent said opening.
Claim 11
Dependent Claim
70 words
The catheter recited in claim 4, and including a plug terminating said catheter tube portion, said plug having an aperture which communicates the interior of said chamber and the interior of said catheter tube portion, and wherein said support means comprises a rod-like member with one end thereof rotatably disposed in said aperture of said plug and the other end thereof non-rotatably connected to the distal end of said chamber.
Claim 12
Dependent Claim
44 words
The catheter recited in claim 10 and further com-prising a tip member disposed at the distal end of said chamber, said chamber terminating at said tip member and being connected fluid-tightly thereto, and wherein said rod-like member is non-rotatably connected to said tip member.
Claim 13
Dependent Claim
27 words
The catheter recited in claim 10, wherein said support means includes means for limiting axial movement of said rod-like member in said aperture of said plug member.
Claim 14
Dependent Claim
25 words
The catheter recited in claim 12, wherein said means comprises an enlarged section of said rod-like member disposed within said chamber adjacent said plug member.
Claim 15
Dependent Claim
21 words
The catheter recited in claim 1, wherein said support means is relatively rotatably coupled to the distal end of said chamber.
Claim 16
Dependent Claim
20 words
The catheter recited in claim 14, wherein said support means is non-rotatably connected to the proximal end of said chamber.
Claim 17
Dependent Claim
33 words
The catheter recited in claim 14, wherein said catheter includes a tip, said chamber distal end being non-rotatably connected to said tip and said support means being relatively rotatably coupled to said tip.
Claim 18
Dependent Claim
23 words
The catheter recited in claim 14, wherein said chamber proximal end and said support means are non-rotatably connected to said catheter tube portion.
Claim 19
Dependent Claim
12 words
The catheter recited in claim 1, wherein said chamber includes two sections.
Claim 20
Dependent Claim
31 words
The catheter recited in claim 1 and further com-prising a thin-walled flexible sheath of low friction material adapted to enclose said chamber when the chamber is twisted on said support means.
Claim 21
Dependent Claim
37 words
The catheter recited in claim 19, wherein said sheath is open at opposed ends thereof and positioned on said catheter tube portion adjacent said chamber and is adapted to being drawn about said chamber to enclose it.
Claim 22
Dependent Claim
119 words
The catheter recited in claim 1 comprising an inflatable and deflatable chamber having opposed ends, a catheter tube portion connected at or adjacent an end thereof to an end of said chamber, a rod-like member extending in said chamber between opposed ends thereof, said rod-like member having opposed ends, one of which extends at least to said end of said catheter tube portion and the other of which is dis-posed at the end of the chamber opposed from the end connected to the catheter tube portion, said rod-like member supporting said chamber and being rotatably coupled to said chamber, said chamber being adapted to be rotated relative to said rod-like member to wrap said chamber about said rod-like member.
Claim 23
Dependent Claim
42 words
The catheter recited in claim 21, wherein the catheter tube portion includes a fluid passage therein in communication with the interior of said chamber and adapted to being communicated with a source of fluid, whereby the chamber may be inflated and deflated.
Claim 24
Dependent Claim
30 words
The catheter recited in claim 21, wherein said rod-like member is rotatably coupled to the distal end of said chamber and non-rotatably connected to the proximal end of said chamber.
Claim 25
Dependent Claim
30 words
The catheter recited in claim 21, wherein said rod-like member is non-rotatably connected to the distal end of said chamber and rotatably coupled to the proximal end of said chamber.
Claim 26
Dependent Claim
145 words
A catheter comprising an inflatable and deflatable chamber having opposed ends, said chamber having substantially the same surface area when inflated and when deflated, a catheter tube portion connected to one end of said chamber, a fluid passage in said catheter tube portion in communication with the interior of said chamber and adapted to be communicated with a source of fluid, whereby the chamber may be inflated and de-flated, a rod-like member extending in said chamber between opposed ends thereof, said rod-like member having opposed ends, one of which is disposed at the end of the chamber opposed from the end connected to the catheter tube portion, said rod-like member supporting said chamber and being rotatably disposed with respect to said chamber, one end of said chamber being adapted to be rotated relative to said rod-like member to wrap said chamber about said rod-like member.
Claim 27
Dependent Claim
145 words
A catheter comprising an inflatable and deflatable chamber having opposed ends, said chamber having substantially the same surface area when inflated and when deflated, a catheter tube portion connected to one end of said chamber, a fluid passage in said catheter tube portion in communication with the interior of said chamber and adapted to be communicated with a source of fluid, whereby the chamber may be inflated and de-flated, a rod-like member extending in said chamber between opposed ends thereof, said rod-like member having opposed ends, one of which is disposed at the end of the chamber opposed from the end connected to the catheter tube portion, said rod-like member supporting said chamber and being rotatably disposed with respect to said chamber, one end of said chamber being adapted to be rotated relative to said rod-like member to wrap said chamber about said rod-like member.
Claim 28
Dependent Claim
30 words
The catheter recited in claim 25, wherein said rod-like member is rotatably coupled to the distal end of said chamber and non-rotatably connected to the proximal end of said chamber.
Claim 29
Dependent Claim
30 words
The catheter recited in claim 25, wherein said rod-like member is non-rotatably connected to the distal end of said chamber and rotatably coupled to the proximal end of said chamber.
Claim 30
Dependent Claim
65 words
The catheter recited in claims 22 or 25, wherein said catheter tube portion terminates in an opening which communicates the interior of said chamber and said fluid passage in said catheter tube portion and wherein one end of said rod-like member is rotatably disposed in said opening and the other end of said rod-like member is non-rotatably connected to the distal end of said chamber.
Claim 31
Dependent Claim
44 words
The catheter recited in claim 28 and further com-prising a tip member disposed at the distal end of said chamber, said chamber terminating at said tip member and being connected fluid-tightly thereto, and wherein said rod-like member is non-rotatably connected to said tip member.
Claim 32
Dependent Claim
23 words
The catheter recited in claim 28, wherein said support means includes means for limiting axial movement of said rod-like member in said opening.
Claim 33
Dependent Claim
24 words
The catheter recited in claim 30, wherein said means comprises an enlarged section of said rod-like member disposed within said chamber adjacent said opening.
Claim 34
Dependent Claim
74 words
The catheter recited in claims 22 or 25 and in-cluding a plug terminating said catheter tube portion, said plug having an aperture which communicates the interior of said chamber and said fluid passage in said catheter tube portion, and wherein said one end of said rod-like member is rotatably disposed in said aperture of said plug and the other end of said rod-like member is non-rotatably connected to the distal end of said chamber.
Claim 35
Dependent Claim
44 words
The catheter recited in claim 32 and further com-prising a tip member disposed at the distal end of said chamber, said chamber terminating at said tip member and being connected fluid-tightly thereto, and wherein said rod-like member is non-rotatably connected to said tip member.
Claim 36
Dependent Claim
27 words
The catheter recited in claim 32, wherein said support means includes means for limiting axial movement of said rod-like member in said aperture of said plug member.
Claim 37
Dependent Claim
25 words
The catheter recited in claim 34, wherein said means comprises an enlarged section of said rod-like member disposed within said chamber adjacent said plug member.
References Cited (Backward Citations)
No citation records indexed.
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