Medical liquid delivery device
First Claim
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1. A liquid delivery catheter comprising:
- a). a cannulated catheter comprising an elongated portion, said elongated portion comprising a proximal end and a distal end;
b). a retractable device that is extended and retracted out the distal end of the catheter;
c) a liquid impermeable barrier covering a portion of said retractable device thereby creating an exposed portion and covered portion of said retractable device when extended, said liquid impermeable barrier configured so as to provide fluid communication between said retractable device and said cannulated catheter; and
d) a squeezable material disposed within said retractable device.
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Abstract
Disclosed herein are novel liquid delivery catheters, and methods and kits implementing the same. The disclosed catheters are particularly useful for localized delivery of a liquid caustic agent to treat various defects associated with malformations and injuries resulting in chronic or acute bleeding, or to ablate tumors, occlude fistulae or other luminal structures. The disclosed devices have uses in a number of medical disciplines, and specific examples are provided pertaining to treatment of defects, malformations, and injuries, or bleeding due to medical procedures, in and along the gastrointestinal tract.
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Citations
16 Claims
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1. A liquid delivery catheter comprising:
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a). a cannulated catheter comprising an elongated portion, said elongated portion comprising a proximal end and a distal end; b). a retractable device that is extended and retracted out the distal end of the catheter; c) a liquid impermeable barrier covering a portion of said retractable device thereby creating an exposed portion and covered portion of said retractable device when extended, said liquid impermeable barrier configured so as to provide fluid communication between said retractable device and said cannulated catheter; and d) a squeezable material disposed within said retractable device. - View Dependent Claims (2, 3, 5, 6, 7, 8, 9, 10, 13, 14)
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4. The liquid delivery catheter of 1, further comprising a liquid injection port disposed thereon such that liquid may be injected into said catheter and exuded out said distal end of said catheter to said retractable device.
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11. A liquid delivery catheter comprising:
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a) an outer cannulated catheter comprising a proximal end and a distal end; b) an inner cannulated catheter disposed within said outer cannulated catheter comprising a proximal end and a distal end c) a retractable device attached to or integrated with said distal end of said inner cannulated catheter that is extended and retracted out the distal end of said outer catheter, said retractable device comprising a brush that comprises at least one lumen in fluid communication with said inner cannulated catheter and wherein said brush comprises bristles for receiving and applying a fluid, the fluid distributed to said bristles from said lumen; and d) a syringe attached to said proximate end of said inner cannulated catheter. - View Dependent Claims (12)
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15. A method of treating an area of need of a patient comprising obtaining the liquid delivery catheter 11;
- wetting the retractable device with a liquid agent;
applying the liquid agent to the area of need by contacting the retractable device to the area of need. - View Dependent Claims (16)
- wetting the retractable device with a liquid agent;
Specification