Patent EP0826346A1 successfully refreshed from Google Patents.
EP0826346A1
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EP
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Hand-held stent crimper
Assignee: Cordis Corp
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Filing: 1997-08-20
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Granted: —
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Expires: 2017-08-20
Abstract
Abstract A stent crimper (21) is provided for loading a stent (48) onto a catheter (24,51) in order to provide a stenting assembly that is suitable for use in procedures in conjunction with percutaneous transluminal angioplasty and percutaneous transluminal coronary angioplasty catheters. The crimper has a stent holding member or sheath (45) which supports the stent by its exterior surface so that a balloon (49) of a catheter can be slid within the stent. An elongated wrapping member or belt (26) winds around the sheath. By properly manipulating the belt, the belt applies generally cylindrical radially directed forces onto the sheath and thus onto the stent within the sheath, as well as the balloon beneath the stent, in order to crimp the stent onto the balloon. A procedure is also illustrated by which a stent is crimped onto the balloon by a hand-held crimper which can be discarded after stent delivery and crimping has been completed.
Inventors
- 👤 Horace R. Davis
- 👤 Phillip G. Reed
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-03 13:26
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/95; A61F2/958; A61F2/9522; A61F2/9526
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
155 words
A crimper for receiving a catheter and for placing
and crimping a balloon-deployable device onto a
catheter, the crimper comprising: a guide member having a longitudinal axis
generally coinciding with a longitudinal feed axis of
the crimper; a holding member positioned with respect to said
guide member so as to accommodate a balloon-deployable
device such as a stent and a catheter
slidingly inserted along said guide member, into said
crimper, and into a balloon-deployable device along
said crimper longitudinal feed axis; an elongated wrapping member which wraps
substantially around said holding member so as to
generally define a substantially cylindrical
compression site lying along said longitudinal feed
axis of the crimper; and a moving and guiding assembly along which the
elongated wrapping member passes and by which the
elongated wrapping member imparts a cylindrical
compressive force onto said holding member and a
balloon-deployable device positioned therewithin,
whereby a balloon-deployable device is crimped onto
the catheter.
Claim 2
Dependent Claim
50 words
The crimper in accordance with claim 1, wherein said
moving and guiding assembly includes a pair of pinch
rollers over which the elongated wrapping member is
fed, and said substantially cylindrical compression
site is along a portion of the elongated wrapping
member which moves between the pair of pinch rollers.
Claim 3
Dependent Claim
22 words
The crimper in accordance with claim 2, wherein said
substantially cylindrical compression site is at a
loop of the elongated wrapping member.
Claim 4
Dependent Claim
22 words
The crimper in accordance with claim 3, wherein said
elongated wrapping member is a belt and said holding
member is a sheath.
Claim 5
Dependent Claim
46 words
The crimper in accordance with claim 1, wherein said
moving and guiding assembly includes a drive shaft
and knob assembly which is rotatable within the
crimper by manual turning of said knob, and one end
of said elongated wrapping member is secured to said
drive shaft.
Claim 6
Dependent Claim
32 words
The crimper in accordance with claim 5, further
including clutch components which permit rotation of
the drive shaft and knob assembly in one direction
and prevent rotation thereof in an opposite
direction.
Claim 7
Dependent Claim
30 words
The crimper in accordance with claim 1, wherein said
moving and guiding assembly further includes a member
for imparting frictional drag onto a trailing portion
of the elongated wrapping member.
Claim 8
Dependent Claim
68 words
The crimper in accordance with claim 1, wherein said
moving and guiding assembly includes a drive shaft
and knob assembly which is rotatable within the
crimper by manual turning of said knob, one end of
said elongated wrapping member is secured to said
drive shaft, and said moving and guiding assembly
further includes a member for imparting frictional
drag onto a trailing portion of the elongated
wrapping member.
Claim 9
Dependent Claim
68 words
The crimper in accordance with claim 2, wherein said
moving and guiding assembly includes a drive shaft
and knob assembly which is rotatable within the
crimper by manual turning of said knob, one end of
said elongated wrapping member is secured to said
drive shaft, and said moving and guiding assembly
further includes a member for imparting frictional
drag onto a trailing portion of the elongated
wrapping member.
Claim 10
Dependent Claim
68 words
The crimper in accordance with claim 4, wherein said
moving and guiding assembly includes a drive shaft
and knob assembly which is rotatable within the
crimper by manual turning of said knob, one end of
said elongated wrapping member is secured to said
drive shaft, and said moving and guiding assembly
further includes a member for imparting frictional
drag onto a trailing portion of the elongated
wrapping member.
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