Vaccinator device

• US 20050043681A1
• Filed: 09/30/2004
• Published: 02/24/2005
• Est. Priority Date: 07/08/2002
• Status: Active Application

• Current Assignee: Ideal Instruments Incorporated (Neogen Corporation)
• Original Assignee: Ideal Instruments Incorporated (Neogen Corporation)
• Inventors: Rusnak, Christopher
• Application Number:
  US10/955,372
• Publication Number:
  US 20050043681A1
• Time in Patent Office: Days
• US Class Current: 604/151
• CPC Class Codes: A61D 1/025 Vaccination appliances hypodermic syringes A61M

Abstract

An automatic repeater vaccinator apparatus (10) for dispensing a predetermined volume of a fluid into an animal, particularly a fluid which is a vaccine, and reloading after each volume of fluid is dispensed. The apparatus (10) comprises a handheld syringe (100) for dispensing the fluid, a flexible conduit (12) for transferring the fluid from a dispensing means to the syringe (100), and a reservoir (48) for providing the fluid to the dispensing means. The dispensing means is electrically activated by a magnetically closeable switch (preferably a reed switch (142)) in the syringe (100), which enables a predetermined volume of the fluid to be dispensed from the syringe (100) when the dispensing means is activated and reloading fluid from the reservoir (48) to replace the volume of fluid which has been dispensed from the syringe (100) when the dispensing means is deactivated. Preferably, the dispensing means comprises a pump (200 or 500) operated by a linear actuator such as a solenoid (300), which is electrically activated by the magnetically closeable switch in the syringe (100). The apparatus (10) is particularly useful for inoculating poultry, particularly inoculating the poultry by the wing web method using the needle and hub assembly (400) which comprises the filament (402) to prevent leakage between inoculations.

Claims

1-10. -10. (Cancelled)

11. - A pump for a fluid which comprises:

(a) a solenoid coil, with a linearly movable armature having a distal end and a proximal end, mounted on a support means, wherein the distal end of the armature is pulled into the solenoid coil when the solenoid is electrically activated and retracts automatically when the solenoid is electrically deactivated;

(b) a piston removably connected to a push rod connected to the distal end of the armature for the linear movement of the push rod and the piston by the armature when the solenoid coil is electrically activated and deactivated;

(c) a tubular member with a proximal end for confining the piston for the linear movement and a distal end; and

(d) a connector on the distal end of the tubular member, with two channels, a first of the channels containing a one-way valve for filling the tubular member and the connector when the piston is retracted when the solenoid is deactivated and a second of the channels containing a second one-way valve which opens when the piston is advanced by the push rod when the solenoid is activated to dispense the fluid from the second of the channels.

12. - A pump for a fluid which comprises:

(a) a solenoid coil, with a linearly movable armature having a distal end and a proximal end, mounted on a support means, wherein the distal end of the armature is pulled into the solenoid coil when the solenoid is electrically activated and retracts automatically when the solenoid is electrically deactivated;

(b) a push rod connected to the distal end of the armature for the linear movement of the push rod by the armature when the solenoid coil is electrically actuated;

(c) a tubular member with a proximal end for confining the push rod for the linear movement and a distal end; and

(d) a one-way valve between the distal and proximal ends of the tubular member for filling the tubular member when the push rod is retracted when the solenoid is deactivated and a second one-way valve at the distal end of the tubular member which opens when the push rod is advanced by the armature when the solenoid is activated to dispense the fluid from the tubular member to the syringe.

13-34. -34. (Cancelled)