SYSTEMS AND METHODS FOR PROVIDING AN AUTOMATIC OCCULSION DEVICE
First Claim
1. A safety device for occluding a flow through a vascular access system, the safety device comprising:
- a casing having an inlet port and an outlet port;
a fluid pathway in communication with the inlet port and the outlet port;
an occlusion valve interposed between the inlet port and the outlet port, the occlusion valve having a threshold pressure, wherein a fluid pressure within the fluid pathway that exceeds the threshold pressure activates the occlusion valve to occlude the fluid pathway.
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Accused Products
Abstract
An auto-occlusion safety device is provided for use in preventing rupture of infusion components during rapid infusion procedures. An occlusion valve is disclosed having a threshold pressure that is less than a rupture tolerance of the infusion system components. As the fluid pressure of the infusion system increases beyond the threshold pressure of the occlusion valve, the occlusion valve is automatically activated thereby occluding fluid flow upstream from a vulnerable infusion component. An accumulator is further disclosed for use in combination with the safety device to compensate for time delays in full activation of the occlusion valve.
18 Citations
30 Claims
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1. A safety device for occluding a flow through a vascular access system, the safety device comprising:
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a casing having an inlet port and an outlet port; a fluid pathway in communication with the inlet port and the outlet port; an occlusion valve interposed between the inlet port and the outlet port, the occlusion valve having a threshold pressure, wherein a fluid pressure within the fluid pathway that exceeds the threshold pressure activates the occlusion valve to occlude the fluid pathway. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A high pressure infusion system, comprising:
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a vascular access device forming a first end of the high pressure infusion system; an injector forming a second end of the high pressure infusion system; an in-line safety device interpose between the vascular access device and the injector pump, the in-line safety device forming a middle section of the high pressure infusion system; and a fluid pathway in communication with the vascular access device, the in-line safety device, and the injector pump, wherein the in-line safety device includes an occlusion valve that is activated resulting in an occlusion of the fluid pathway when a fluid pressure within the fluid pathway exceeds a threshold pressure of the occlusion valve. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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29. A method for occlusion of a fluid pathway through an infusion system, the method comprising:
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providing a vascular access device configured to access a vasculature system of a patient; coupling an injector to the vascular access device; and interposing an in-line safety device between the vascular access device and the injector, wherein the vascular access device, the injector and the in-line safety device are in fluid communication, and wherein the in-line safety device includes an occlusion valve that is activated resulting in an occlusion of the pathway through the infusion system when a pressure within the fluid pathway exceeds a threshold pressure of the occlusion valve. - View Dependent Claims (30)
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Specification