Catheter with filtering and sensing elements
First Claim
1. An apparatus for infusing a therapeutic agent into a body lumen, the apparatus comprising:
- a multiple coaxial catheter assembly comprising a first lumenal body;
a second lumenal body extending beyond the first lumenal body, said second lumenal body having at least one infusion port for infusing the therapeutic agent into the body lumen;
a third lumenal body extending beyond the second lumenal body;
a sensing element attached to the third lumenal body distal of the at least one infusion port and adapted to sense an amount of infused therapeutic agent or any compound derived from the therapeutic agent in the body lumen;
a sensing element signal produced by the sensing element; and
a feedback component associated with the sensing element and adapted to provide the sensing element signal to a location outside of the body lumen.
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Accused Products
Abstract
A delivery apparatus useful for infusing a therapeutic agent into a body lumen, the apparatus including a lumenal body defining at least one infusion port for infusing the therapeutic agent into the body lumen, and a sensing element which is distal of the at least one infusion port and adapted to sense the amount of infused therapeutic agent or any compound derived therefrom in the body lumen. Another embodiment of the apparatus includes a lumenal body defining at least one infusion port for infusing the therapeutic agent into the body lumen, and a filtration element which is distal of the at least one infusion port and adapted to deliver a reaction agent which may react with the therapeutic agent in the body lumen. A sensing element may be provided distal of the filtration element for sensing the amount of infused therapeutic agent or compounds derived therefrom in the body lumen.
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Citations
34 Claims
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1. An apparatus for infusing a therapeutic agent into a body lumen, the apparatus comprising:
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a multiple coaxial catheter assembly comprising a first lumenal body; a second lumenal body extending beyond the first lumenal body, said second lumenal body having at least one infusion port for infusing the therapeutic agent into the body lumen; a third lumenal body extending beyond the second lumenal body; a sensing element attached to the third lumenal body distal of the at least one infusion port and adapted to sense an amount of infused therapeutic agent or any compound derived from the therapeutic agent in the body lumen; a sensing element signal produced by the sensing element; and a feedback component associated with the sensing element and adapted to provide the sensing element signal to a location outside of the body lumen. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An apparatus for infusing a therapeutic agent into a body lumen, the apparatus comprising:
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a multiple coaxial catheter assembly comprising a first lumenal body; a second lumenal body extending beyond the first lumenal body, the second lumenal body having at least one infusion port for infusing the therapeutic agent into the body lumen; a third lumenal body extending beyond the second lumenal body; a sensing element attached to the third lumenal body; a filtration element distal of the at least one infusion port and adapted to deliver a reaction agent which is adapted to react with the therapeutic agent in the body lumen; a chemical coating on the filtration element; and a sensing element signal produced by the sensing element, wherein the sensing element is adapted to sense an amount of infused therapeutic agent or any compound derived from the therapeutic agent in response to the reaction agent in the body lumen. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A multiple coaxial catheter assembly comprising:
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a first lumenal body; a second lumenal body extending beyond the first lumenal body, the second lumenal body having at least one infusion port for infusing a therapeutic agent into a body lumen; a third lumenal body extending beyond the second lumenal body; and a sensing element attached to the third lumenal body used to deliver the therapeutic agent to the body lumen, the sensing element comprising an electrically conductive body adapted to change conductivity when exposed to the therapeutic agent or any compound derived from the therapeutic agent. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32)
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33. A multiple coaxial catheter assembly comprising:
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a first lumenal body; a second lumenal body extending beyond the first lumenal body, the second lumenal body having at least one infusion port for infusing a therapeutic agent into a body lumen; a third lumenal body extending beyond the second lumenal body; and a filtration element attached to the third lumenal body used to deliver the therapeutic agent to the body lumen, the filtration element comprising a plurality of structures coated with a reaction agent adapted to react with the therapeutic agent. - View Dependent Claims (34)
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Specification