Source: https://patents.google.com/patent/US6171279?oq=4182933
Timestamp: 2018-06-18 20:13:43
Document Index: 599886302

Matched Legal Cases: ['art 1', 'art 1', 'art 1', 'art 1', 'art 1', 'art 1', 'art 1', 'art 1', 'art 1', 'art 1', 'art 1', 'art 1', 'art 5', 'art 1', 'art 1', 'art 1', 'art 1', 'art 1']

US6171279B1 - Over-the-wire dilatation catheter - Google Patents
Over-the-wire dilatation catheter Download PDF
US6171279B1
US6171279B1 US08967202 US96720297A US6171279B1 US 6171279 B1 US6171279 B1 US 6171279B1 US 08967202 US08967202 US 08967202 US 96720297 A US96720297 A US 96720297A US 6171279 B1 US6171279 B1 US 6171279B1
US08967202
Philippe Salbert
Said catheter comprises a flexible tubular body 1 having a proximal part 1 a, an intermediate part 1 b and a distal part 1 c.
By way of example, for a catheter having a total length of 135 cm, the proximal part 1 a may have a length of about 111 cm, the intermediate part 1 b a length of about 21 cm and the distal part 1 c a length of about 3 cm.
The flexible body 1 may be produced for example from one or more semi-rigid thermoplastic materials selected among the polyethylenes, polyamides or even copolymers of PEBAX® or HYTREL® type.
Generally speaking, the flexible body 1 comprises a first inner duct 5, extending substantially longitudinally in the distal part 1 c, and extending at the level of the intermediate part 1 b and of the proximal part 1 a.
The flexible body 1 further comprises a second inner duct 6, non-communicating with the first inner duct 5, which also passes through the distal part 1 c, the intermediate part 1 b and the proximal part 1 a, the distal part 5 c of the first inner duct 5 fluidly connected to the balloon 2, in liquidtight manner, and its proximal end 5 a being connected, via the multi-channel tube 12 to a fluid supply source, not shown, to allow inflating and deflating of the balloon 2.
In the currently preferred embodiment illustrated in FIG. 1, the inner ducts 5 and 6 extend substantially longitudinally inside the body 1 and are coaxial in the distal part 1 c and in at least the intermediate part 1 b. The proximal part 1 a and distal part 1 c are interconnected in liquidtight manner by the intermediate part 1 b.
The body 1 further comprises a core 11 having a high modulus of elasticity, which core is permanently joined by its proximal end to the body 1, for example by being sealed there on, and of which the distal end 13 is embedded in the wall defining the intermediate portion 6 b of the second inner duct 6.
1. An over-the-wire dilatation catheter, for introduction into a body canal of the type comprising:
a radially deformable portion forming a balloon disposed at the level of the distal part of the tubular body;
a first inner duct fluidly connected to the balloon, in liquidtight manner, and connected at the other end to a fluid supply source in order to enable inflating and deflating of the balloon;
a second inner duct, which does not communicate with said first inner duct, and traverses the body, said second inner duct being defined by a substantially tubular wall and adapted to allow the passage of a guide-wire,
a core of high modulus of elasticity of which a distal end is embedded in the wall of said second inner duct within said intermediate part of said flexible tubular body,
wherein the body comprises in its proximal part a two-channel tube constituted of a proximal portion of the second inner duct and of a proximal part of the first inner duct, said core having a proximal section which is contained within the proximal part of the first inner duct,
wherein the body comprises in a transitional zone located between its proximal part and its intermediate part, a three-channel tube, constituted of:
a first upper channel extending from the proximal part of the first inner duct and fluidly connected to the intermediate portion of the first inner duct,
a second lower channel communicating on each side of the transitional zone with, respectively, the proximal and intermediate portions of the second inner duct, and
a third channel inside which the core is confined, and
wherein the body comprises, in its intermediate part, an outer tube that extends from the radially deformable balloon-forming portion of the distal part and that coaxially surrounds the intermediate part of the second inner duct while providing an annular space which forms the intermediate part of the first inner duct.
2. The over-the-wire dilatation catheter as claimed in claim 1, wherein the proximal part of the first inner duct is substantially semi-cylindrical in shape.
a flexible tubular body having a distal part, an intermediate part, a transition zone and a proximal part;
an inflatable balloon mounted on the distal part of the flexible tubular body;
a first lumen within the flexible tubular body, the first lumen having a distal end fluidly connected to the balloon, an intermediate portion defined by an outer tube extending proximally from the balloon, a transition portion defined by a first channel within the transition zone of the flexible tubular body, a proximal portion defined by a continuation of the first channel within the proximal part of the flexible tubular body, and a proximal end adapted for connection to a fluid supply source for inflating and deflating the balloon;
a second lumen within the flexible tubular body adapted to allow passage of a guide-wire, the second lumen having an open distal end, a distal portion defined by an inner tube within the distal part of the flexible tubular body, an intermediate portion defined by a continuation of the inner tube through the intermediate part of the flexible tubular body and coaxially received within the outer tube, a transition portion defined by a second channel within the transition zone of the flexible tubular body, a proximal portion defined by a continuation of the second channel within the proximal part of the flexible tubular body, and an open proximal end; and
a core of high modulus of elasticity having a proximal portion residing within the proximal portion of the first lumen, a transition portion residing within a third channel within the transition zone of the flexible tubular body, and an intermediate portion and a distal end embedded within a wall of the inner tube within the intermediate part of the flexible tubular body.
12. The over-the-wire dilatation catheter of claim 11, wherein the proximal portion of the first lumen is substantially semi-cylindrical in shape and wherein the proximal portion of the second lumen is eccentrically positioned within the proximal part of the flexible tubular body.
a catheter body having a one-channel distal part, a one-channel intermediate part, a three-channel transition zone and a two-channel proximal part;
an inflatable balloon mounted on the distal part of the catheter body;
an outer tube extending proximally from the balloon, the outer tube coaxially surrounding the intermediate part of the catheter body and having a proximal end attached to the catheter body at a point proximal to the intermediate part;
a first lumen within the catheter body, the first lumen having a distal end fluidly connected to the balloon via an annular space between the outer tube and the catheter body, a transition portion defined by a first channel within the three-channel transition zone of the catheter body, a proximal portion defined by a continuation of the first channel within the two-channel proximal part of the catheter body;
a second lumen within the catheter body adapted to allow passage of a guide-wire, the second lumen having an open distal end, a distal portion defined by a guide-wire channel within the one-channel distal part of the catheter body, an intermediate portion defined by a continuation of the guide-wire channel through the one-channel intermediate part of the catheter body, a transition portion defined by a continuation of the guide-wire channel through the three-channel transition zone of the catheter body, and a proximal portion defined by a continuation of the guide-wire channel within the two-channel proximal part of the catheter body, and an open proximal end; and
a core of high modulus of elasticity having a proximal portion residing within the proximal portion of the first lumen, a transition portion residing within a third channel within the three-channel transition zone of the catheter body, and an intermediate portion and a distal end embedded within a wall of the one-channel intermediate part of the catheter body.
17. The over-the-wire dilatation catheter of claim 16, wherein the proximal portion of the first lumen is substantially semi-cylindrical in shape and wherein the proximal portion of the second lumen is eccentrically positioned within the proximal part of the catheter body.
US08967202 1995-07-06 1997-10-29 Over-the-wire dilatation catheter Expired - Fee Related US6171279B1 (en)
FR9508175A FR2736270B1 (en) 1995-07-06 1995-07-06 type dilatation catheter guide wire
FR9508175 1995-07-06
US52267295 true 1995-09-01 1995-09-01
US08967202 US6171279B1 (en) 1995-07-06 1997-10-29 Over-the-wire dilatation catheter
US6171279B1 true US6171279B1 (en) 2001-01-09
ID=9480746
US08967202 Expired - Fee Related US6171279B1 (en) 1995-07-06 1997-10-29 Over-the-wire dilatation catheter
US (1) US6171279B1 (en)
EP (1) EP0836504B1 (en)
JP (1) JPH11508467A (en)
DE (2) DE69610631T2 (en)
ES (1) ES2150683T3 (en)
FR (1) FR2736270B1 (en)
WO (1) WO1997002067A1 (en)
JPH11508467A (en) 1999-07-27 application
WO1997002067A1 (en) 1997-01-23 application
EP0836504B1 (en) 2000-10-11 grant
DE69610631D1 (en) 2000-11-16 grant
DE69610631T2 (en) 2001-02-15 grant
FR2736270B1 (en) 1998-01-09 grant
ES2150683T3 (en) 2000-12-01 grant
EP0836504A1 (en) 1998-04-22 application
FR2736270A1 (en) 1997-01-10 application
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:LABORATOIRE NYCOMED SA;REEL/FRAME:011294/0623