EP0769307A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Balloon catheter with delivery side holes
Assignee: Target Therapeutics Inc
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Filing: 1996-10-07
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Granted: —
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Expires: 2016-10-07
Abstract
Abstract This is a medical catheter made up of a body having on its distal end portion an expandable balloon and, proximal of the balloon, a delivery lumen ending in a port through which therapeutic or diagnostic agents may be delivered. In one variation, a single inflation/wire lumen extends from the catheter proximal end to the catheter distal end, through which the balloon is inflated with pressurized fluid and through which a guide wire extends. The guide wire may have a valve plug for selectively seating against a valve seat of the catheter distal end to seal the inflation/wire lumen for balloon inflations. In another variation, a vaso-occlusive agent is disposable within a delivery lumen in a catheter coupled with a steerable guidewire. The delivery lumen ends in a delivery port near to and proximal of an expandable balloon located at the catheter's end. A single inflation/wire lumen may also be provided for facilitating both balloon inflation and guide wire tracking.
Inventors
- 👤 David Kupiecki
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 19:06
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/0067; A61M25/0074; A61M25/0075; A61B; A61B17/00; A61B17/12; A61B17/12022; A61B17/12099; A61B17/12109; A61B17/12131; A61B17/12136; A61B17/12181; A61B17/12186; A61M25/10; A61M25/104; A61B2017/1205; A61M2025/1043; A61M2025/1052; A61M2025/1063
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
82 words
A medical catheter, comprising: a body having a distal end portion comprising an expandable balloon, a distal wire port distal to the balloon, and a distal delivery port proximal to the balloon, and said body having a proximal end portion comprising a proximal inflation/wire port and a proximal delivery port; wherein said proximal inflation/wire port is fluidly coupled to said expandable balloon portion and to said distal wire port, and said proximal delivery port is fluidly coupled to said distal delivery port.
Claim 2
Dependent Claim
54 words
A medical catheter as described in claim 1, further comprising: an inflation/wire lumen extending between said distal wire port and said proximal inflation/wire port and being fluidly coupled to said inflatable balloon, said inflation/wire lumen being adapted to slideably receive a wire; and a delivery lumen extending between said proximal and distal delivery ports.
Claim 3
Dependent Claim
77 words
A medical catheter as described in claim 2, further comprising: a tip portion between said distal wire port and said expandable balloon; and a wire slideably disposable at least in part within said inflation/wire lumen and comprising a valve plug adapted to seat at or adjacent to said tip portion such that said inflation/wire lumen is sealed against flow beyond said expandable balloon and through said distal wire port when said inflation/wire lumen is pressurized with fluid.
Claim 4
Dependent Claim
18 words
A medical catheter as described in claim 3, wherein said wire has a shapeable tip and is torquable.
Claim 5
Dependent Claim
75 words
A vaso-occlusive agent delivery assembly, comprising: a catheter body having a distal end portion with an expandable balloon, a proximal end portion with an inflation port fluidly coupled to said balloon, a wire lumen with a distal wire port disposed distally of said balloon and a proximal wire port disposed proximally of said balloon, and a delivery port disposed proximally of said balloon; and a pressurizable vaso-occlusive agent source fluidly coupled to said delivery port.
Claim 6
Dependent Claim
39 words
A vaso-occlusive agent delivery assembly as described in claim 5, wherein said vaso-occlusive agent comprises a material selected from the group consisting of ethanol, estrogen, polyvinyl acetate, ethylene vinyl alcohol, cellulose acetate polymer, collagen, or derivatives or combinations thereof.
Claim 7
Dependent Claim
31 words
A vaso-occlusive agent delivery assembly as described in claim 5 or claim 6, wherein said inflation port is fluidly coupled to said balloon at least in part through said guidewire lumen.
Claim 8
Dependent Claim
86 words
A vaso-occlusive agent delivery assembly as described in any one of claims 5 to 7, further comprising: a tip portion of said catheter body between said distal wire port and said balloon; and a wire slideably disposable at least in part within said wire lumen and comprising a valve plug adapted to seat at or adjacent to said tip portion such that said wire lumen is sealed against flow beyond said balloon and through said distal wire port when said wire lumen is pressurized with fluid.
Claim 9
Independent Claim
80 words
A method of delivering a fluid or suspension to a desired site, comprising the steps of: placing an expandable balloon, located at a first end of a catheter, distally beyond a desired site in a vessel; expanding the balloon to engage the vessel wall and thereby secure the balloon; and delivering the fluid or suspension through a delivery lumen of the catheter, out a distal delivery port on the catheter located proximal to the balloon, and into the desired site.
Claim 10
Dependent Claim
58 words
A method as claimed in claim 9, the method further comprising: sealing a distal wire port of an inflation/wire lumen in the catheter with a valve that couples a portion of a wire disposed within the inflation/wire lumen with a portion of the catheter, thereby fluidly coupling the balloon with a pressurizable inflation source through the inflation/wire lumen.
Claim 11
Dependent Claim
38 words
A method as claimed in claim 9 or claim 10, wherein the balloon is expanded such that fluid communication through the vessel externally of the catheter is blocked between a distal wire port and the distal delivery port.
Claim 12
Independent Claim
45 words
A method as claimed in any one of claims 9 to 11, further comprising: coupling a fluid source to the delivery lumen; and injecting a fluid or suspension from the fluid source, through the delivery lumen, out the delivery port, and into the desired site.
Claim 13
Independent Claim
103 words
A method of isolating a site for fluid communication with a lumen in a catheter, the method comprising the following steps: placing a first port, being in communication with a first lumen of a catheter, at or adjacent to the site to be isolated; sealing a second port, being in communication with a second lumen in the catheter, with a valve portion on a guide wire; and pressurizing fluid in the second lumen to expand a balloon located between the first and second ports such that fluid communication through the space external to the catheter is blocked between the first and second ports.
References Cited (Backward Citations)
No citation records indexed.
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