Adjustable multi-balloon local delivery device
First Claim
1. A local delivery device for the administration of a liquid of interest comprising:
- i) a distal catheter unit comprising a distal occluding balloon in communication with a distal occluding balloon inflation port, a distal catheter shaft comprising a plurality of infusion ports distributed within said distal catheter shaft and in fluid communication with a liquid of interest delivery port;
ii) a proximal catheter unit, comprising a proximal occluding balloon in communication with a proximal occluding balloon inflation port, and a proximal catheter shaft, said distal catheter shaft slidable within said proximal catheter shaft; and
iii) an adjustment mechanism for setting a distance between said distal occluding balloon and said proximal occluding balloon.
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Accused Products
Abstract
The present invention pertains to a local delivery device comprising a distal catheter unit and a proximal catheter unit which may be positioned by sliding over the distal catheter unit. Both the distal and the proximal catheter units have separate inflatable occluding balloons. The slidable positioning of the catheter units in relation to each other provides for variable inter-balloon distances, which in turn provides for a variably sized occlusion region in a hollow tubular organ, for example a vessel. Dispersed on the catheter shaft between the two occluding balloons are multiple infusion ports through which therapeutic agents may be delivered to an occluded region of a hollow tubular organ. The local delivery device may further comprise a quantifying device for determining the distance between the two occluding balloons. Therefore, precise adjustment of the inter-balloon distance permits controlled delivery of therapeutics to a discreet length of the hollow tubular organ wall.
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Citations
27 Claims
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1. A local delivery device for the administration of a liquid of interest comprising:
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i) a distal catheter unit comprising a distal occluding balloon in communication with a distal occluding balloon inflation port, a distal catheter shaft comprising a plurality of infusion ports distributed within said distal catheter shaft and in fluid communication with a liquid of interest delivery port;
ii) a proximal catheter unit, comprising a proximal occluding balloon in communication with a proximal occluding balloon inflation port, and a proximal catheter shaft, said distal catheter shaft slidable within said proximal catheter shaft; and
iii) an adjustment mechanism for setting a distance between said distal occluding balloon and said proximal occluding balloon. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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11. A local delivery device comprising:
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i) a distal catheter unit comprising a distal occluding balloon in communication with a distal occluding balloon inflation port, and ii) a proximal catheter unit, comprising a medical device selected from the group consisting of a laser, a fibre optic, and an ultrasound device, wherein said distal catheter shaft is slidable within said proximal catheter shaft; and
iii) an adjustment mechanism for setting a distance between said distal occluding balloon and a terminal portion of said proximal catheter unit, said adjustment mechanism interacting with either said distal catheter shaft, said proximal catheter shaft, or both said distal and proximal catheter shafts, said adjustment mechanism when actuated causes said proximal catheter shaft or said distal catheter shaft to move relative to each other. - View Dependent Claims (12, 13, 14, 25, 26, 27)
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Specification