EP0228787A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Prefolded balloon catheter
Assignee: Datascope Corp
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Filing: 1986-11-06
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Granted: —
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Expires: 2006-11-06
Abstract
Abstract A prewrapped percutaneously insertable intra-aortic balloon catheter (10) and a kit including such a catheter, in which the balloon (18) is wrapped ultra-compactly, preferably by being flattened, folded over on itself along a longitudinal folding-line, and then rolled up around an elongated member (24) which extends the length of the balloon chamber. One or more sleeve-like retainers (70) may be fitted over the wrapped balloon. Thus, the physician need not have any part in the folding or wrapping of the balloon, or in the removal of a wrapping device from the balloon, since the latter can be unpacked and inserted into the patient without such steps.
Inventors
- 👤 Stavros B. Kontos
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 01:38
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/002; A61M60/00; A61M60/40; A61M60/497; A61M25/10; A61M25/1002; A61M60/10; A61M60/122; A61M60/126; A61M60/13; A61M60/135; A61M60/139; A61M60/20; A61M60/295; A61M60/80; A61M60/841; A61M60/843; A61M2025/1004; A61M2205/00; A61M2205/32; A61M2209/00; A61M2209/06; A61M60/247; A61M60/253; A61M60/268; A61M60/274
Claims Analysis
Total Claims: 35
Claim 1
Independent Claim
152 words
A balloon catheter comprising: a hollow catheter tube portion (12) having a proximal end and a distal end; a balloon membrane (18) defining a balloon chamber, said balloon chamber having a distal portion and a proximal portion, said proximal portion of said balloon chamber being connected to said catheter tube portion in such a manner that the interior of said catheter tube portion communicates with the interior of said balloon chamber; and an elongated member (24) smaller in diameter than said catheter tube portion and disposed in said balloon chamber, said elongated member having a proximal end extending into said catheter tube portion and having a distal end attached to said distal portion of said balloon chamber, characterised by said balloon membrane (18) being in a compact configuration capable of being formed by folding said balloon membrane along a longitudinal folding line, and wrapping said folded balloon membrane around said elongated member.
Claim 2
Dependent Claim
152 words
A balloon catheter comprising: a hollow catheter tube portion (12) having a proximal end and a distal end; a balloon membrane (18) defining a balloon chamber, said balloon chamber having a distal portion and a proximal portion, said proximal portion of said balloon chamber being connected to said catheter tube portion in such a manner that the interior of said catheter tube portion communicates with the interior of said balloon chamber; and an elongated member (24) smaller in diameter than said catheter tube portion and disposed in said balloon chamber, said elongated member having a proximal end extending into said catheter tube portion and having a distal end attached to said distal portion of said balloon chamber, characterised by said balloon membrane (18) being in a compact configuration capable of being formed by folding said balloon membrane along a longitudinal folding line, and wrapping said folded balloon membrane around said elongated member.
Claim 3
Dependent Claim
53 words
A balloon catheter as claimed in claim 1, wherein said configuration is one capable of being formed by folding said balloon membrane (18) along a single longitudinal folding line (62) to define a four-fold thickness of said balloon membrane, and wrapping said four-fold thickness of said balloon membrane around said elongated member (24).
Claim 4
Dependent Claim
55 words
A balloon catheter as claimed in claim 1 or 2, further comprising a retainer (70) having an inner diameter smaller than the outer diameter of said catheter tube portion (12), said retainer being fitted over said wrapped balloon membrane so that the interior of said retainer tends to hold said balloon membrane in said configuration.
Claim 5
Dependent Claim
69 words
A balloon catheter as claimed in claim 1, 2 or 3, wherein said balloon chamber has a central axis about which it is substantially symmetric, wherein said elongated member (24) is disposed in said balloon chamber so as to lie substantially along said axis of said balloon chamber, and wherein said axis of said balloon chamber coincides with the longitudinal folding line along which said balloon membrane is folded.
Claim 6
Dependent Claim
19 words
A balloon catheter as claimed in any of claims 1 to 4, wherein said elongated member (24) is hollow.
Claim 7
Dependent Claim
18 words
A balloon catheter as claimed in any of claims 1 to 4, wherein said elongated member is solid.
Claim 8
Dependent Claim
22 words
A balloon catheter as claimed in any of claims 1 to 6, wherein the longitudinal folding line lies along said elongated member.
Claim 9
Dependent Claim
19 words
A balloon catheter as claimed in claim 5, further comprising a stylet (38) in said hollow elongated member (24).
Claim 10
Dependent Claim
192 words
A kit comprising: A) a balloon catheter having: 1) a catheter tube (14) having a proximal and a distal end; 2) a balloon membrane (18) defining a balloon chamber, said balloon chamber having a distal portion and a proximal portion, said proximal portion of said balloon chamber being connected to said catheter tube (14) in such a manner that the interior of said catheter tube communicates with the interior of said balloon chamber; and 3) an elongated member (24) smaller in diameter than said catheter tube portion and disposed in said balloon chamber, said elongated member having a proximal end extending into said catheter tube and having a distal end attached to said distal portion of said balloon chamber; and B) packaging for the balloon catheter; characterised by: said balloon membrane (18) being in a compact prewrapped configuration capable of being formed by folding said balloon membrane along at least one longitudinal folding line, and then wrapping said folded balloon membrane around said elongated member (24); and said packaging comprising a packaging device (74) including means (70, 72) for retaining said folded and wrapped balloon catheter in place in said packaging device.
Claim 11
Dependent Claim
192 words
A kit comprising: A) a balloon catheter having: 1) a catheter tube (14) having a proximal and a distal end; 2) a balloon membrane (18) defining a balloon chamber, said balloon chamber having a distal portion and a proximal portion, said proximal portion of said balloon chamber being connected to said catheter tube (14) in such a manner that the interior of said catheter tube communicates with the interior of said balloon chamber; and 3) an elongated member (24) smaller in diameter than said catheter tube portion and disposed in said balloon chamber, said elongated member having a proximal end extending into said catheter tube and having a distal end attached to said distal portion of said balloon chamber; and B) packaging for the balloon catheter; characterised by: said balloon membrane (18) being in a compact prewrapped configuration capable of being formed by folding said balloon membrane along at least one longitudinal folding line, and then wrapping said folded balloon membrane around said elongated member (24); and said packaging comprising a packaging device (74) including means (70, 72) for retaining said folded and wrapped balloon catheter in place in said packaging device.
Claim 12
Dependent Claim
45 words
A kit as claimed in claim 9, wherein said retaining means comprises at least one retainer (70) having an interior so shaped and dimensioned as to fit over at least a portion of said balloon chamber to retain said balloon membrane (18) in said configuration.
Claim 13
Dependent Claim
39 words
A kit as claimed in claim 10, wherein said packaging device further comprises a tray (74) formed to receive said balloon catheter (10) thereon at a predetermined position, said balloon catheter being received on said tray at said position.
Claim 14
Dependent Claim
43 words
A kit as claimed in claim 11, wherein said retainer (70) is attached to said tray (74) in such a manner as to permit said balloon catheter to be removed from said tray and said retainer without separating said retainer from said tray.
Claim 15
Dependent Claim
32 words
A kit as claimed in claim 11, wherein said retainer (70) is attached to said tray (74) in such a manner as to be removable from said tray with said balloon catheter.
Claim 16
Dependent Claim
23 words
A kit as claimed in any one of claims 9 to 13, wherein said elongated member (24) of said balloon catheter is solid.
Claim 17
Dependent Claim
21 words
A kit as claimed in any of claims 9 to 13, wherein said elongated member of said balloon catheter is hollow.
Claim 18
Dependent Claim
19 words
A kit as claimed in claim 15, further comprising a stylet (38) received in said hollow elongated member (24).
Claim 19
Dependent Claim
22 words
A kit as claimed in any one of claims 9 to 16, wherein the longitudinal folding line lies along said elongated member.
Claim 20
Dependent Claim
90 words
A kit as claimed in claim 11, wherein said retaining means further comprises a first retainer (70) and a second retainer (70), said second retainer being distal to said first retainer, and wherein said first retainer is so shaped and dimensioned as to fit over a first portion of said balloon chamber to retain said first portion in said pre-wrapped configuration, while said second retainer is so shaped and dimensioned as to fit over a second portion of said balloon chamber to retain said second portion in said pre-wrapped configuration.
Claim 21
Dependent Claim
63 words
A kit as claimed in claim 18, wherein said retainers (70) are attached to said tray (74) in such a manner as to permit removal of said balloon catheter (10) from said tray by longitudinal movement of said balloon catheter out of said retainers such that said balloon catheter is released by said first retainer before it is released by said second retainer.
Claim 22
Dependent Claim
45 words
A kit as claimed in claim 18, wherein said retaining means further comprises a first clip means (72) associated with said first retainer in such a manner as to permit balloon catheter removal from said tray without removal of said first retainer from said tray.
Claim 23
Dependent Claim
46 words
A kit as claimed in claim 18, wherein said retaining means further comprises a second clip means (72) associated with said second retainer (70) in such a manner as to permit balloon catheter removal from said tray without removal of said second retainer from said tray.
Claim 24
Dependent Claim
42 words
A kit as claimed in claim 20, further comprising a second clip means (72) associated with said second retainer (70) in such a manner as to permit balloon catheter removal from said tray without removal of said second retainer from said tray.
Claim 25
Dependent Claim
89 words
A kit as claimed in claim 22, wherein said first and second retainers are hollow tubes (70) and the prewrapped balloon chamber is retained within said hollow tubular retainers wherein said balloon chamber is removed from said tray by sliding said balloon chamber from within said tubular retainers, wherein said first and second clip means are positioned so that during removal of said balloon chamber from said tray said balloon chamber begins to slide relative to said second retainer before it begins to slide relative to said first retainer.
Claim 26
Independent Claim
139 words
A method of wrapping a balloon catheter of the type having a hollow catheter tube (14) with a proximal end and a distal end, a balloon membrane (18) defining a balloon chamber which has a proximal portion connected to the catheter tube in such a manner that the interior of the catheter communicates with the interior of the balloon chamber, an elongated member (24) of smaller diameter than the catheter tube and disposed in the balloon chamber and having a proximal end extending into the catheter tube and a distal end attached to the distal portion of the balloon chamber, said method comprising wrapping the balloon membrane about the elongated member, characterised by the steps of: folding the balloon membrane (18) along at least one folding line (62); and wrapping the folded balloon membrane about the elongated member (24).
Claim 27
Independent Claim
139 words
A method of wrapping a balloon catheter of the type having a hollow catheter tube (14) with a proximal end and a distal end, a balloon membrane (18) defining a balloon chamber which has a proximal portion connected to the catheter tube in such a manner that the interior of the catheter communicates with the interior of the balloon chamber, an elongated member (24) of smaller diameter than the catheter tube and disposed in the balloon chamber and having a proximal end extending into the catheter tube and a distal end attached to the distal portion of the balloon chamber, said method comprising wrapping the balloon membrane about the elongated member, characterised by the steps of: folding the balloon membrane (18) along at least one folding line (62); and wrapping the folded balloon membrane about the elongated member (24).
Claim 28
Dependent Claim
27 words
A method as claimed in claim 24, wherein the balloon membrane is folded along a single folding line (62) which lies substantially along the elongated member (24).
Claim 29
Dependent Claim
23 words
A method as claimed in claim 24 or 25, further comprising the step of flattening the balloon membrane (18) before said folding step.
Claim 30
Dependent Claim
23 words
A method as claimed in claim 26, wherein said flattening step is performed by applying suction to the interior of the balloon chamber.
Claim 31
Independent Claim
228 words
A method for compactly wrapping a balloon catheter of a type having a hollow catheter tube (14) having a proximal end and a distal end, a balloon membrane (18) defining a balloon chamber which has a proximal portion connected by means of a first connection to the catheter tube in such a manner that the interior of the catheter tube communicates with the interior of the balloon chamber, an elongated member (24) disposed in the balloon chamber and having a proximal end extending into the catheter tube and a distal end attached by means of a second connection to the distal portion of the balloon chamber, said method comprising wrapping the balloon membrane about the elongated member, characterised by the steps of: folding the balloon membrane (18) along at least one folding line (62) to define therein a plurality of temporary creases to divide the balloon membrane into a plurality of longitudinal regions which each extend from the first connection, at the proximal portion of the balloon chamber, to the second connection, at the distal portion of the balloon chamber, and each of which regions includes, at each end of the balloon chamber, only a portion of the circumference of the balloon membrane; and wrapping the folded balloon membrane about the elongated member (24) to cause the balloon membrane to assume a compact configuration about the elongated member.
Claim 32
Independent Claim
228 words
A method for compactly wrapping a balloon catheter of a type having a hollow catheter tube (14) having a proximal end and a distal end, a balloon membrane (18) defining a balloon chamber which has a proximal portion connected by means of a first connection to the catheter tube in such a manner that the interior of the catheter tube communicates with the interior of the balloon chamber, an elongated member (24) disposed in the balloon chamber and having a proximal end extending into the catheter tube and a distal end attached by means of a second connection to the distal portion of the balloon chamber, said method comprising wrapping the balloon membrane about the elongated member, characterised by the steps of: folding the balloon membrane (18) along at least one folding line (62) to define therein a plurality of temporary creases to divide the balloon membrane into a plurality of longitudinal regions which each extend from the first connection, at the proximal portion of the balloon chamber, to the second connection, at the distal portion of the balloon chamber, and each of which regions includes, at each end of the balloon chamber, only a portion of the circumference of the balloon membrane; and wrapping the folded balloon membrane about the elongated member (24) to cause the balloon membrane to assume a compact configuration about the elongated member.
Claim 33
Dependent Claim
25 words
A method as claimed in claim 28, wherein said folding step consists of folding the balloon membrane (18) along a single longitudinal folding line (62).
Claim 34
Dependent Claim
23 words
A method as claimed in claim 27 or 28, further comprising the step of flattening the balloon membrane (18) before said folding step.
Claim 35
Dependent Claim
33 words
A method as claimed in claim 28, 29 or 30, wherein said folding step is performed in such a manner that at least some of the temporary creases lie along the elongated member.
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