APPARATUS AND A METHOD FOR MONITORING A VASCULAR ACCESS
First Claim
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1. An apparatus for monitoring a vascular access, comprising:
- a fluid transport system for moving a fluid;
at least one needle connected to the fluid transport system and to a vascular access of an individual, the needle being configured to supply the fluid to the vascular access, to remove the fluid from the vascular access, or to both supply the fluid to the vascular access and to remove the fluid from the vascular access;
a perturbation generator configured to generate variations of at least one parameter in the fluid transport system, to generate variations of at least one parameter in the needle, or to generate variations of at least one parameter in both the fluid transport system and in the needle;
a sensor configured to be applied to the individual'"'"'s body, the sensor emitting a signal indicating the variations of at least one parameter transmitted through the needle; and
an analysis device configured to recognize a detachment of the at least one needle, on a basis of said signal.
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Abstract
An apparatus for monitoring a vascular access includes a dialysis circuit having a venous needle and a blood pump of a peristaltic type which generates oscillatory perturbations in the circuit. An optical sensor, arranged on a patient'"'"'s body by the venous needle, perceives the perturbations transmitted through the needle and sends a pulsating signal to an analysis device. The absence of a pulsating signal indicates a detachment of the needle.
80 Citations
54 Claims
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1. An apparatus for monitoring a vascular access, comprising:
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a fluid transport system for moving a fluid; at least one needle connected to the fluid transport system and to a vascular access of an individual, the needle being configured to supply the fluid to the vascular access, to remove the fluid from the vascular access, or to both supply the fluid to the vascular access and to remove the fluid from the vascular access; a perturbation generator configured to generate variations of at least one parameter in the fluid transport system, to generate variations of at least one parameter in the needle, or to generate variations of at least one parameter in both the fluid transport system and in the needle; a sensor configured to be applied to the individual'"'"'s body, the sensor emitting a signal indicating the variations of at least one parameter transmitted through the needle; and an analysis device configured to recognize a detachment of the at least one needle, on a basis of said signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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28. A method for monitoring a vascular access, comprising:
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providing a fluid transport system; connecting at least one needle to the fluid transport system and to a vascular access of an individual; supplying, removing, or supplying and removing a fluid to the vascular access, from the vascular access, or to and from the vascular access through the at least one needle; generating variations of at least one parameter in the fluid transport system, generating variations of at least one parameter in the at least one needle, or generating variations of at least one parameter in both the fluid transport system and in the at least one needle; monitoring an individual'"'"'s body in order to identify the variations of at least one parameter transmitted through the at least one needle; and recognising a detachment of the at least one needle on a basis of the monitoring. - View Dependent Claims (29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54)
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Specification