Vascular access monitoring device
First Claim
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1. A vascular access monitoring device fbr monitoring characteristics of a skin piercing vascular access device, the monitoring device comprising:
- an acoustic sensor operable to detect an acoustic emission created by flow through said vascular access device and produce an electrical signal indicative of said emission; and
an electronic monitor that monitors said electrical signal and processes it to determine, by identifying a change of characteristic of said signal, the possibility that the vascular access device has become dislodged from its normal working position;
wherein the electronic monitor comprises an electrical input that, in use, receives a signal from an extracorporeal blood pump; and
wherein said extracorporeal blood pump is arranged for intermittent pumping and the electronic monitor receives a signal indicative of a pumping cycle of said extracorporeal blood pump.
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Abstract
A vascular access monitoring device for monitoring characteristics of a skin piercing vascular access device comprising: an acoustic sensor operable to detect an acoustic emission created by flow through said vascular access device and produce an electrical signal indicative of said emission; electronics processing means for processing and monitoring said electrical signal, and to determine, by identifying a change of characteristic of said signal, the possibility that the vascular access device has become dislodged from its normal working position.
57 Citations
21 Claims
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1. A vascular access monitoring device fbr monitoring characteristics of a skin piercing vascular access device, the monitoring device comprising:
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an acoustic sensor operable to detect an acoustic emission created by flow through said vascular access device and produce an electrical signal indicative of said emission; and an electronic monitor that monitors said electrical signal and processes it to determine, by identifying a change of characteristic of said signal, the possibility that the vascular access device has become dislodged from its normal working position; wherein the electronic monitor comprises an electrical input that, in use, receives a signal from an extracorporeal blood pump; and wherein said extracorporeal blood pump is arranged for intermittent pumping and the electronic monitor receives a signal indicative of a pumping cycle of said extracorporeal blood pump. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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Specification