Apparatus and a method for monitoring a vascular access
First Claim
Patent Images
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 directly to the individuals body independent of the needle and the fluid transport system,wherein the sensor comprises at least an emitter of light radiation and a receiver of light radiation configured to emit a signal indicating the variations of at least one parameter generated by the perturbation generator and transmitted through the needle, the emitter of light radiations and the receiver of light radiations configured to be operatively associated to at least a tissue of the individual'"'"'s body; and
an analysis device configured to recognize a detachment of the at least one needle, on a basis of said signal.
2 Assignments
0 Petitions
Accused Products
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.
-
Citations
51 Claims
-
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 directly to the individuals body independent of the needle and the fluid transport system, wherein the sensor comprises at least an emitter of light radiation and a receiver of light radiation configured to emit a signal indicating the variations of at least one parameter generated by the perturbation generator and transmitted through the needle, the emitter of light radiations and the receiver of light radiations configured to be operatively associated to at least a tissue of the individual'"'"'s body; 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. A method for monitoring a vascular access, comprising:
-
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; applying a sensor directly to the individual'"'"'s body independent of the needle and the fluid transport system, wherein the sensor comprises at least an emitter of light radiation and a receiver of light radiation configured to emit a signal indicating the variations of at least one parameter generated by the perturbation generator and transmitted through the needle, the emitter of light radiations and the receiver of light radiations configured to be operatively associated to at least a tissue of the individual'"'"'s body; monitoring the individual'"'"'s body in order to identify the signal indicating 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 (27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51)
-
Specification