Cardiocirculatory aiding device

Abstract

Cardiocirculatory aiding device, as hematic pumping device able to aid the right or left ventricular or biventricular of the human body, characterised by being supplied by gas pneumatic energy, in which: i) the variation of pressure generator device systems is intended for being placed outside of the human body; ii) the pumping device of the blood (P), is conceived to be installed inside of the human body; iii) the two said devices (i,ii) are connected with at least one tubular duct of transmission of said gas, passing from the inside of the human body to the external of the same; iv) said pumping device of the blood (P) being driven by the variation of pneumatic pressure in said duct by means of two opposite expansible and retractable lungs that compress a central chamber body elastically yielding by pulses in order to cause, by means of two ducts respectively of blood entry and blood exit with unidirectional valves, the pumping of the blood.

1 . Cardiocirculatory aiding device, as hematic pumping device able to aid the right or left ventricular or the biventricular or other, inside the human body, characterized in that it is operated by pulse-gas pneumatic energy and in which: 
 i) the variation of pulse pressure of the gas generator device is intended for being placed outside of the human body;    ii) the blood pumping device (P), is conceived to be installed inside of the human body;    iii) the two said devices (i- 7 - 10 ,ii-P) are connected with at least one tubular duct of transmission of said gas, passing from the inside of the human body to the external of the same;    iv) said blood pumping device (P) being driven by the variation of pneumatic pressure in said duct by means of pressure means effective on a central chamber, by pulses, in such a way to pump the blood, by means of two openings respectively of blood entry and blood exit associated with unidirectional valves.    
   
   
       2 . Cardiocirculatory aiding device, according to  claim 1 , characterized in that the said pressure means consist in two opposite expansible elastically/flexibly chambers such to transmit the pulse of the gas to the said pumping central chamber of the blood.  
   
   
       3 . Cardiocirculatory aiding device according to  claim 1 , characterized in that said central chamber is a rigid-semirigid distinct containing body with only one entry duct and only one exit duct and in which said central body is slightly pressed on its opposite faces, flexing them alternatively by the inflation of said two opposite chambers.  
   
   
       4 . Cardiocirculatory aiding device, according to  claim 1 , characterized in that said valves are external to the said pump (P), namely applied in the respective entry and exit ducts of the blood applied to said respective mouths.  
   
   
       5 . Cardiocirculatory aiding device, according to  claim 1 , characterized in that said valves are incorporated in the respective input and exit blood openings of the pump.  
   
   
       6 . Cardiocirculatory aiding device, according to  claim 1 , characterized in that said central chamber body has substantially a discoidal section, progressively decreasing at the opposite side of said entry and exit ducts of the blood.  
   
   
       7 . Cardiocirculatory aiding device, according to  claim 1  characterized in that said tubular duct is of flexible plastic material.  
   
   
       8 . Cardiocirculatory aiding device, according to  claim 1 , characterized in that said gas pulse pressure variation generator is an electro-pneumatic operating unit that produces a pulse gas flushing whose frequency can be varied both manually and automatically.  
   
   
       9 . Cardiocirculatory aiding device, according to  claim 1 , characterized in that the said opposite and elastically expansible chambers consist in elastic chambers that face on the cavity of the central chamber body, such to impress to the blood a symmetrical push.  
   
   
       10 . Cardiocirculatory aiding device, according to  claim 9 , characterized in that said opposite and elastically expansible chambers are movable, flexible and interchangeable.  
   
   
       11 . Cardiocirculatory aiding device, according to  claim 1 , characterized in that said variation of pressure generator device is asynchronous with the natural heart and is adjustable to variable frequency in order to obtain a mean flow variation.  
   
   
       12 . Cardiocirculatory aiding device, according to  claim 1 , characterized in that it comprises a flexible small manual pump or the like, with exclusion valve and connection to the said duct for operating as an alternative of pumping the gas, manually.