Systems and methods for correcting and preventing occlusion in a catheter
First Claim
1. A patency device for providing patency to at least one lumen of a catheter assembly, the patency device comprising:
- a fluid reservoir configured to provide a fluid path to the at least one lumen of the catheter assembly;
a pressure input portion having a distal end connected to the fluid reservoir, the pressure input portion configured to provide pressure for at least one impulse of positive pressure to a fluid disposed within the at least one lumen; and
an interface portion having a proximal end connected to the fluid reservoir, and a distal end connected to the at least one lumen.
1 Assignment
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Accused Products
Abstract
A patency device for catheter assemblies and other elongate tubular devices used for establishing access to an interior body portion of a patient is disclosed. The patency device establishes and preserves patency of one or more lumens defined by the catheter assembly by providing impulses of positive pressure to fluid disposed in the lumen of the catheter assembly. In one embodiment, the patency device comprises a fluid reservoir configured to provide a fluid path to at least one lumen of the catheter assembly, and a pressure input portion. The pressure input portion is configured to provide pressure for one or more impulses of positive pressure to a fluid disposed within the lumen. The impulses are configured to dislodge occlusions that may have formed in the lumen. A negative pressure can then be provided to the lumen to aspirate the occlusion.
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Citations
35 Claims
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1. A patency device for providing patency to at least one lumen of a catheter assembly, the patency device comprising:
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a fluid reservoir configured to provide a fluid path to the at least one lumen of the catheter assembly; a pressure input portion having a distal end connected to the fluid reservoir, the pressure input portion configured to provide pressure for at least one impulse of positive pressure to a fluid disposed within the at least one lumen; and an interface portion having a proximal end connected to the fluid reservoir, and a distal end connected to the at least one lumen. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A patency device for providing patency to at least one lumen of a catheter assembly, the patency device comprising:
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a fluid path to the at least one lumen of the catheter assembly; a pressure input portion configured to provide pressure for at least one impulse of positive pressure to a fluid disposed within the at least one lumen; and a vacuum input portion configured to provide a temporary negative pressure to the fluid disposed in the at least one lumen. - View Dependent Claims (22, 23, 24, 25, 26, 27)
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28. A method for providing patency to at least one lumen of a catheter assembly, the method comprising:
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disposing a fluid in the at least one lumen of a catheter tube of the catheter assembly; and propagating a plurality of impulses of positive pressure through the fluid disposed in the at least one lumen, the plurality of impulses propagated in a predetermined pattern. - View Dependent Claims (29, 30, 31, 32, 33, 34, 35)
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Specification