Needle insertion sensor

Abstract

This invention relates to a doser comprising a syringe ( 2 ) with a needle ( 3 ) which extends beyond the doser ( 1 ), which comprises an engagement face ( 4 ) in the vicinity of the needle so that the engagement face rests against the surface of the tissue into which the needle is inserted. Detector means ( 5 ) are provided on said engagement face to sample signals on the skin of the patient, said means being arranged for providing heart rate signals. The invention further provides means ( 13 ) for receiving information related to health monitoring of a patient. This provides a doser that may record heart rate, EKG, BGM and hypo-alarm administered medicine. The doser may further be arranged to calculate an appropriate dose of medication on the basis of a number of acquired inputs.

1 . A doser comprising a syringe with a needle, which extends beyond the doser, which comprises, in the vicinity of the needle, an engagement face for engaging a surface of a tissue into which the needle is to be inserted, characterized in that detector means capable of detecting heart rate are provided on said engagement face.  
     
     
         2 . A doser according to  claim 1 , characterized in that the doser comprises additional electrode means capable of detecting heart rate.  
     
     
         3 . A doser according to  claim 2 , characterized in that the additional electrode means are provided on the handle of the doser.  
     
     
         4 . A doser according to  claim 1 , characterized in that the needle comprises electrode means.  
     
     
         5 . A doser according to  claim 2  characterized in that the electrode means are sensitive to electrical signals.  
     
     
         6 . A doser according to  claim 2  characterized in that the electrode means are sensitive to optical signals.  
     
     
         7 . A doser according to  claim 5 , characterized in that the doser comprises electrical circuits for generating and for receiving electrical signals for measuring the impedance between electrodes.  
     
     
         8 . A doser according to  claim 6 , characterized in that the doser comprises an emitter for generating and emitting light and detector means for detecting light.  
     
     
         9 . A doser according to  claim 7  characterized in that the signals are modulated.  
     
     
         10 . A doser according to  claim 7  characterized in that the doser contains a calculating circuit and a storage circuit adapted to process and store the value of said signals.  
     
     
         11 . A doser according to  claim 1  characterized in that the doser has means for receiving external signals, and that the circuit in the doser is adapted to combine the external signals with signals from said detector means.  
     
     
         12 . A doser according to  claim 1  characterized in that the doser contains means for wireless communication.  
     
     
         13 . A doser according to  claim 1  characterized in that the detector means comprise a neural network program for signal processing.  
     
     
         14 . A doser according to  claim 13  characterized in that the neural network program is executed on an external computer connected to the doser via a wireless communication link.  
     
     
         15 . A doser according to  claim 1  characterized in that said electrode means comprise a pair of mutually closely spaced electrodes.  
     
     
         16 . A doser according to  claim 9  characterized in that the doser is adapted to estimate electrocardiogram signals.  
     
     
         17 . A doser according to  claim 9  characterized in that the circuit is adapted to recognize specific signal shapes.  
     
     
         18 . A doser according to  claim 9  characterized in that the circuit is adapted to determine pulse rates.  
     
     
         19 . A doser according to  claim 5 , characterized in that the circuit is adapted to calculate the blood glucose level.  
     
     
         20 . A doser according to  claim 19 , characterized in that the circuit is adapted to calculate doses in dependence on the calculated blood glucose level.  
     
     
         21 . A doser according to  claim 20 , characterized in that the circuit is adapted to control the generation of control signals to a pump in the doser.