Pump, system with a blood pump and method for producing a blood pump

Abstract

The invention relates to a blood pump made of titanium with a measuring device for determining flow based on acoustic flow measurement methods, and a blood pump with a temperature sensor and/or a pressure sensor, and a system with a blood pump and an inlet cannula and/or an outlet connector and a method for producing a blood pump with a measuring device.

1 . Blood pump made of titanium with a measuring device to determine flow based on acoustic flow measurement processes, whereby the measuring device has a measuring path with two coupling wedges with two transducers placed on these,
 characterised by the fact that the measuring device is attached to the blood pump in such a way that an installation functions as a reflector.   
     
     
         2 . Blood pump as per  claim 1 , characterised by the fact that the installation is a motor and that the flow is measured in an annular gap. 
     
     
         3 . Blood pump as per  claim 1  or  claim 2 , characterised by the fact that along the circumference, several measuring paths are arranged. 
     
     
         4 . Blood pump as per  claim 3 , characterised by the, fact that the measurement paths are placed on opposite sides. 
     
     
         5 . Blood pump according to one of the preceding claims, characterised by the fact that that a sound wall is arranged between the coupling wedges. 
     
     
         6 . Blood pump according to one of the preceding claims, characterised by the fact that the measuring device is sealed hermetically in a space via the pump environment. 
     
     
         7 . Blood pump as per  claim 6 , characterised by the fact that a grommet is arranged between the space and the inside of the pump. 
     
     
         8 . Blood pump as per  claim 6  or  claim 7 , characterised by the fact that the grommet is arranged along the longitudinal axis. 
     
     
         9 . Blood pump, in particular according to one of  claims 1  to  8 , characterised by the fact that it comprises a temperature sensor. 
     
     
         10 . Blood pump, in particular according to one of  claims 1  to  9 , characterised by the fact that
 it comprises an integrated pressure sensor. 
 
     
     
         11 . Blood pump as per  claim 10 , characterised by the fact that the pressure sensor is placed at a pump inlet and/or a pump outlet. 
     
     
         12 . Blood pump in particular according to  claim 10  or  claim 11 , characterised by the fact that it comprises a first pressure sensor and a second pressure sensor, wherein
 the first pressure sensor is arranged in such a way that it measures pressure in one heart chamber, 
 and the second pressure sensor is arranged in such a way that it measures pressure in the downstream vascular system. 
 
     
     
         13 . System comprising a blood pump, especially a blood pump as per one of the  claims 1  to  12 , and an inlet cannula, characterised by the fact that it has a pressure sensor in the inlet cannula, whereby the pressure sensor is arranged in particular at the tip of the inlet cannula. 
     
     
         14 . System as per  claim 13 , characterised by the fact that the pressure sensor placed on the tip of the inlet cannula is placed on the inside and/or the outside of the tip. 
     
     
         15 . System according to one of  claim 13  or  14 , characterised by the fact that a flow sensor is arranged at the inlet cannula. 
     
     
         16 . System according to one of  claims 13  to  15 , characterised by the fact that a flow sensor is arranged at the outlet connector. 
     
     
         17 . System with a blood pump in particular according to one of  claims 12  to  16  characterised by the fact that the system comprises an outlet cannula with an outlet connector and the outlet connector has a pressure sensor. 
     
     
         18 . Process for the preparation of a blood pump with a measuring device, in particular according to one of  claims 1  to  12 , characterised by the fact that the coupling wedges are cut from the pump housing. 
     
     
         19 . Process as per  claim 18 , characterised by the fact that the wall which encloses one of the coupling wedges is milled from the pump housing. 
     
     
         20 . Process as per  claim 19 , characterised by the fact that a drill hole is drilled from inside the wall to the interior of the pump. 
     
     
         21 . Process as per  claim 20 , characterised by the fact that a drill hole is drilled in an axial direction. 
     
     
         22 . Procedure as per one of  claims 19  to  21 , characterised by the fact that a cover is put on the wall, so that coupling wedges are hermetically sealed from the pump environment. 
     
     
         23 . Process as per  claim 22 , characterised by the fact that the cover is welded.