Pressure relief methods in a medical catheter system
First Claim
1. A method of providing pressure relief within a medical catheter system, the method comprising:
- providing a medical catheter system that comprises;
a lumen comprising an interior lumen surface;
a flow restrictor located within the lumen, the flow restrictor comprising a restrictor body located within the lumen;
a channel located between an outer surface of the restrictor body and the interior lumen surface of the lumen, wherein the channel extends from an upstream end of the restrictor body to a downstream end of the restrictor body;
passing fluid through only the channel from the upstream end of the restrictor body to the downstream end of the restrictor body when fluid pressure within the lumen is below a selected pressure; and
passing fluid between the outer surface of the restrictor body and the interior lumen surface of the lumen outside of the channel when fluid pressure is above the selected pressure.
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Accused Products
Abstract
Catheter systems including one or more flow restrictors are disclosed. The catheter systems may include two or more delivery branches. The delivery branches may be connected to a supply catheter section using a branching catheter connector that may include one or more flow restrictors. The flow restrictors may include a restrictor body located within a lumen with a channel located between the restrictor body and interior surface of the lumen, the channel restricting flow through the lumen past the flow restrictor. The channel may be defined by a groove formed in the restrictor body and/or the interior surface of the lumen. Methods of providing pressure relief by flowing fluid past a flow restrictor are also disclosed.
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Citations
11 Claims
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1. A method of providing pressure relief within a medical catheter system, the method comprising:
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providing a medical catheter system that comprises;
a lumen comprising an interior lumen surface;
a flow restrictor located within the lumen, the flow restrictor comprising a restrictor body located within the lumen;
a channel located between an outer surface of the restrictor body and the interior lumen surface of the lumen, wherein the channel extends from an upstream end of the restrictor body to a downstream end of the restrictor body;
passing fluid through only the channel from the upstream end of the restrictor body to the downstream end of the restrictor body when fluid pressure within the lumen is below a selected pressure; and
passing fluid between the outer surface of the restrictor body and the interior lumen surface of the lumen outside of the channel when fluid pressure is above the selected pressure. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification