Thermodilution Injector 400/500

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Injector 400 and Injector 500 are extremely precise automated instruments for accurate delivery of saline, glucose or dye for cardiac output measurement by thermodilution or dye dilution in animals. Injector 400 is designed to deliver smaller volumes associated with animals ranging from mice to cats. Injector 500 is appropriate for larger animals ranging from dogs to horses.
Injector 400 is an electro-mechanical device that actuates a syringe by a motor driven screw assembly allowing injection volumes from 10% to 100% (in 10% steps) of the installed syringe. The device employs gas tight syringes that are offered in sizes from 25 µL to 10mL, making available an injectate range of 2.5µL to 10mL. Injector 400 incorporates a 2-way valve assembly that automatically refills the syringe in preparation for the next inject cycle.

Injector 500 is a pneumatically operated device that employs an air cylinder connected to the syringe plunger. A source of compressed air or CO2 (30-45 psig) is used to operate the device. It can be controlled manually via a mechanical button or remotely by an electrical signal from an external source. A 2-way automatic valve placed between the injection syringe and catheter makes possible automatic operation with injection and automatic refill. Injector 500 employs a disposable syringe and the injection volume is fully adjustable in the range of 1 to 10 ml. (suitable for big dogs, horses and humans).

Both injectors can be remotely actuated from Columbus Instruments' cardiac output computers via a single cable connection. Operation of the injector is initiated with depression of the computer's 'Start Measure' button, assuring proper timing between moment of injection and start of measurement procedure.

Features / Specifications

Assures consistent and accurate Cardiac Output measurements
Both Injector 400 and Injector 500 automatically refill via an automatic 2-way valve
Injection volume is adjustable
Injector 500 is powered by compressed air or CO2 from compressed gas cylinder or hospital air system
Injector 500 is manually or remotely controlled while
Injector 400 is controlled manually as well as by a programmable controller unit
Both Injector 400 and Injector 500 can be triggered from either Cardiotherm-400R or Cardiomax-III

Injector 400:
Automatically refills itself via automatic 2-way valve
Injection volume is adjustable in range 2.5 µL - 1 ml.
Controlled manually, automatically from cardiac output computer or by programmable controller unit
Injector 500:
Injection syringe: disposable plastic (10 mL)
Automatically refills itself via automatic 2-way valve
Injection volume continuously adjustable in range 1 to 10 ml.
Powered by compressed air or CO2 from compressed gas cylinder operating at a pressure of 30 to 45 psi

Ordering Information

9150 Automatic Injector 500 for Pigs or Dogs
9170 Automatic Injector 500 for Horses
9180 Automatic Injector 400 for mice, rats and small animals
9182 Automatic Injector 400 Fluid Input Assembly (88965)
9184 Automatic Injector 400 Fluid Output Assembly (88967)
9190 Automatic Injector 500 Two Way Automatic Valve
9200 Automatic Injector 500 10cc Disposable Syringes (per 100)
9210 Automatic Injector 500 CO2 Cylinder & regulator