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MULTI-VESSEL COMPUTER CONTROL DRUG DELIVERY

  • US 20120245560A1
  • Filed: 03/22/2011
  • Published: 09/27/2012
  • Est. Priority Date: 03/22/2011
  • Status: Abandoned Application
First Claim
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1. An apparatus for combining together and for injecting into a subject, a mixture of a liquid drug and at least one other liquid in desired proportions, the liquid drug and the at least one other liquid each being provided in respective sealed cartridges (114, 116), each cartridge having a cartridge cylinder (113) for containing a quantity of liquid with a sealed discharge end (115) and an opposite open end (117), a cartridge piston (119) in the cartridge cylinder near the opposite open end when the cartridge is full, the piston being pushable toward the discharge end for discharging liquid when the discharge end is punctured, the apparatus comprising:

  • a drive unit housing (110);

    a motor (120) mounted in the drive unit housing;

    a motor plunger (122) engaged to the motor for lineal movement with respect to the drive unit housing when the motor is activated;

    a computer (124) connected to the motor and programmed with a program for activating the motor to move the motor plunger at selected times and at selected speeds;

    a multiple cartridge holder (130) connected to the drive unit housing and adapted to receive a plurality of the cartridges with one of the cartridges containing the liquid drug and at least one other of the cartridges containing the other liquid;

    a mixing chamber (132) operatively connected to the multiple cartridge holder (130) and having a plurality of inlets (134) each connectable to the discharge end of one of the cartridges received in the multiple cartridge holder for unsealing each respective discharge end for receiving liquid from each cartridge, the mixing chamber mixing liquids from the cartridges together and having an outlet (135) for discharging a mixture of the liquids;

    a length of micro-tubing (136) having one end connected to the outlet of the mixing chamber and an opposite end;

    a handpiece assembly (140) connected to the opposite end of the micro-tubing for receiving the mixture of liquid, the handpiece assembly having a subcutaneous injection needle (142) for injecting the mixture of liquids into a subject;

    a plurality of cartridge plungers (152, 154) mounted for movement with respect to the drive unit housing (110) and into respective opposite open ends of cartridges (114, 116) received by the multiple cartridge holder (130) for pushing the respective cartridge pistons (119) toward the respective discharge ends to discharge liquids from the cartridges into the mixing chamber;

    a motion transmission (160) engaged between the motor plunger (122) and the cartridge plungers (152, 154) for moving the cartridge plungers into the respective opposite open ends of the cartridges when the computer (124) activates the motor (120) to move the motor plunger; and

    a foot controller (102) connected to the computer (124) for activating the motor via the program for combining, proportioning, mixing and injecting of the mixture in a hands-free manner.

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