Device for the infusion of fluids into the human or animal body
First Claim
1. An infusion system for the infusion of fluids into the human or animal body, said system comprising(a) a metering device to be implanted within the body, having a delivery unit for the dosed delivery of fluid to the body, said delivery unit having operating circuitry for controlling operation of the delivery unit, and said metering device having coupling means for receiving an operational signal transmission and for effecting an operation in accordance therewith,(b) an external monitor device having coupling means coupled with said metering device for supplying a monitoring signal in accordance with an operation produced at the metering device by an operational signal transmission, and(c) evaluation means operatively associated with said external monitor device for receiving a transmission signal in accordance with an operational signal transmission transmitted to the metering device, and connected with the coupling means of the external monitor device for receiving a monitoring signal in accordance with an operation at the metering device produced by an operational signal transmission, and operative for supplying an information signal where a received monitoring signal has a predetermined relationship to a received transmission signal, the information signal thereby being indicative of receipt of the operational signal transmission by the metering device,(d) the delivery unit comprising a roller pump and a stepping motor drive therefor, said coupling means of said metering device comprising an induction coil associated with the roller pump for coupling with the coupling means of the external monitor device, said induction coil being connected with the stepping motor drive and said stepping motor drive being actuated by an operational signal transmission so as to cause the coupling means of the external control device to supply said monitoring signal in a predetermined relationship to the operational signal transmission, and(e) said evaluation means comprising time sensitive comparison means for receiving the transmission signal to initiate a timing comparison and receiving the monitoring signal upon actuation of the stepping motor drive by the operational signal transmission, and being operative to compare the timing relationship between said transmission signal and said monitoring signal and supplying said information signal only where a received monitoring signal has a predetermined timing relationship to a received transmission signal, said time sensitive comparison means thereby being operative to monitor for an answer back response resulting directly from an actual test operation of said stepping motor drive, as well as to discriminate such answer back response from incorrectly timed spurious signals.
1 Assignment
0 Petitions
Accused Products
Abstract
An exemplary embodiment comprises a metering device which can be worn on the body or which is preferably implantable in the body, the metering device exhibiting a delivery unit for the dosed delivery of the fluid from a supply container to a discharge aperture of a catheter and also exhibiting an appertaining operating circuit, and an external control and programming device. The operating circuit in the metering device and the control circuit in the control device can be inductively coupled for operational signal transmission, to which end at least one transmission coil is present in the control device and at least one reception coil is present in the metering device. Given implanted devices, it is the object of the disclosure to guarantee the highest degree of patient security. For function monitoring of operating parameters of the metering device the metering device exhibits a transmitter whose signals can be received in a receiver outside of the patient'"'"'s body and, under certain conditions, can be evaluated. In addition to pure function monitoring, an acknowledgement of signals as well as an answerback of the value of one or more operating parameters is possible.
462 Citations
28 Claims
-
1. An infusion system for the infusion of fluids into the human or animal body, said system comprising
(a) a metering device to be implanted within the body, having a delivery unit for the dosed delivery of fluid to the body, said delivery unit having operating circuitry for controlling operation of the delivery unit, and said metering device having coupling means for receiving an operational signal transmission and for effecting an operation in accordance therewith, (b) an external monitor device having coupling means coupled with said metering device for supplying a monitoring signal in accordance with an operation produced at the metering device by an operational signal transmission, and (c) evaluation means operatively associated with said external monitor device for receiving a transmission signal in accordance with an operational signal transmission transmitted to the metering device, and connected with the coupling means of the external monitor device for receiving a monitoring signal in accordance with an operation at the metering device produced by an operational signal transmission, and operative for supplying an information signal where a received monitoring signal has a predetermined relationship to a received transmission signal, the information signal thereby being indicative of receipt of the operational signal transmission by the metering device, (d) the delivery unit comprising a roller pump and a stepping motor drive therefor, said coupling means of said metering device comprising an induction coil associated with the roller pump for coupling with the coupling means of the external monitor device, said induction coil being connected with the stepping motor drive and said stepping motor drive being actuated by an operational signal transmission so as to cause the coupling means of the external control device to supply said monitoring signal in a predetermined relationship to the operational signal transmission, and (e) said evaluation means comprising time sensitive comparison means for receiving the transmission signal to initiate a timing comparison and receiving the monitoring signal upon actuation of the stepping motor drive by the operational signal transmission, and being operative to compare the timing relationship between said transmission signal and said monitoring signal and supplying said information signal only where a received monitoring signal has a predetermined timing relationship to a received transmission signal, said time sensitive comparison means thereby being operative to monitor for an answer back response resulting directly from an actual test operation of said stepping motor drive, as well as to discriminate such answer back response from incorrectly timed spurious signals.
- 3. An infusion system according to claim 3, with said coupling means of the metering unit comprising carrier frequency generator means for actuation by an operational signal transmission to generate a carrier frequency signal for coupling with the coupling means of the external monitor device.
-
7. An infusion system for the infusion of fluids into the human or animal body, said system comprising
(a) a metering device to be implanted within the body, having a delivery unit for the dosed delivery of fluid to the body, said delivery unit having operating circuitry for controlling operation of the delivery unit, and said metering device having coupling means for receiving an operational signal transmission and for effecting an operation in accordance therewith, (b) an external monitor device having coupling means coupled with said metering device for supplying a monitoring signal in accordance with an operation produced at the metering device by an operational signal transmission, and (c) evaluation means operatively associated with said external monitor device for receiving a transmission signal in accordance with an operational signal transmission transmitted to the metering device, and connected with the coupling means of the external monitor device for receiving a monitoring signal in accordance with an operation at the metering device produced by an operational signal transmission, and operative for supplying an information signal where a received monitoring signal has a predetermined relationship to a received transmission signal, the information signal thereby being indicative of receipt of the operational signal transmission by the metering device, (d) said coupling means of said metering device comprising a receiver induction coil connected with the delivery unit for actuating said delivery unit upon receipt of an operational signal transmission, and said coupling means of said external monitor device comprising a receiver induction coil for supplying the monitoring signal in response to actuation of the delivery unit, (e) said evaluation means being connected to the receiver induction coil of the monitor device so as to supply said information signal only when the operational signal transmission actually causes actuation of the delivery unit and the resultant monitoring signal from the receiver induction coil of the monitor device has the predetermined relationship to the transmission signal.
-
14. An infusion system for the infusion of fluids into the human or animal body, said system comprising
(a) a metering device to be implanted within the body, having a delivery unit for the dosed delivery of fluid to the body, said delivery unit having operating circuitry for controlling operation of the delivery unit, and said metering device having coupling means for receiving an operational signal transmission and for effecting an operation in accordance therewith, (b) an external monitor device having coupling means coupled with said metering device for supplying a monitoring signal in accordance with an operation produced at the metering device by an operational signal transmission, and (c) evaluation means operatively associated with said external monitor device for receiving a transmission signal in accordance with an operational signal transmission transmitted to the metering device, and connected with the coupling means of the external monitor device for receiving a monitoring signal in accordance with an operation at the metering device produced by an operational signal transmission, and operative for supplying an information signal where a received monitoring signal has a predetermined relationship to a received transmission signal, the information signal thereby being indicative of receipt of the operational signal transmission by the metering device, (d) said metering device having a response circuit connected with said coupling means and providing for operation of the metering device so as to supply an acknowledgement signal occurring within a specific time interval relative to a received operational signal transmission.
Specification