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Publication Number
US-9017285-B2
Publication Date
2015-04-28
Expiration Date
Abstract
Catheters for occluding, visualizing, irrigating, evacuating, and delivering agents to a treatment area are disclosed. The catheters comprise a catheter body comprising five lumens, first and second occlusion balloons coupled to the catheter body, an optional space-occupying balloon coupled to the catheter body and disposed between the first and second occlusion balloons, and an optional visualization means that enables visualization between the first and second occlusion balloons. Methods for using these catheters are also disclosed. A method comprises inflating the first and second occlusion balloons, inflating the space-occupying balloon, allowing fluid to exit via an evacuation lumen, optionally irrigating or aspirating to facilitate fluid exit via said lumen, and delivering an agent to a treatment area via the agent lumen.
Core Innovation
The invention relates to visualizing a lumen using an occlusion perfusion/visualization catheter (OPC/OVC) that isolates a treatment region within a lumen of a vessel. A catheter is inserted into the lumen with a longitudinal axis, and the treatment region is isolated, with optional evacuating and optional flushing of the isolated region.
Visualization means are introduced into the isolated treatment region via the catheter. The visualization means may turn about the longitudinal axis via torque applied to the visualization means, and the visualization means may activate a photoreactive agent.
The catheter comprises an agent delivery lumen that includes a delivery skive port, enabling the introduction of visualization and delivery functions within the isolated treatment region. The disclosed catheter further includes aspiration/evacuation capabilities and optional visualization or illumination systems configured to exit through a visualization slot.
Claims Coverage
The independent claims are clm-00001 and clm-00008, and both recite three inventive features: isolating a treatment region, introducing visualization means that turn via torque and may activate a photoreactive agent, and an agent delivery lumen with a delivery skive port combined with pressure selection and detection.
Torque-enabled visualization means in isolated treatment region
Introducing visualization means into the isolated treatment region via the catheter, wherein the visualization means may turn about the longitudinal axis via torque applied to the visualization means and may activate a photoreactive agent.
Agent delivery lumen with delivery skive port and pressure detection
Wherein the catheter comprises an agent delivery lumen comprising a delivery skive port, wherein the introducing comprises selecting a pressure to be detected within the delivery skive port or within the agent delivery lumen, and detecting said pressure.
Catheter insertion and isolation with optional evacuating and flushing
Inserting a catheter into the lumen comprising a longitudinal axis, isolating a treatment region within the lumen, optionally evacuating the isolated treatment region, and optionally flushing the isolated treatment region.
Across both independent claims, the core coverage centers on an isolated treatment region in a vessel lumen, visualization means introduced through the catheter that may rotate via torque and may activate a photoreactive agent, and an agent delivery lumen with a delivery skive port where a pressure is selected and detected at the port or within the lumen.
Stated Advantages
Documented Applications
No documented applications found
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