Isoflurane Anaesthesia System
Univentor | BioMedical Instruments


This image shows an overview about a complete anaesthesia system for Isoflurane. The air stream from an air source (not shown) is directed to the Vaporizer Univentor 410 (1). After that the Isoflurane-gas mixture goes to a Switcher (2) which has two positions.

In one position the mixture is directed to the Induction chamber (3) which is available for mice and rats. After the animal has fallen asleep the Switcher is changed to its second position leading the gas mixture to the Breathing mask (4) which exists also for mice and rats. Now the animal is taken out from the Induction chamber and put into the Breathing mask. After passing the animal most part of the gas mixture is sucked to the Scavenger (5).

However, a small part of the Isoflurane gas stream can leave the Breathing mask beside the head. This outlet of the Breathing mask is located over a pit (6) in a heated surgical table (7). Because the Isoflurane gas mixture is heavier than air, it falls into the pit. Additionally, a small negative pressure generated also by the Scavenger is applied to the pit and sucks this part of the gas stream into the Scavenger, too. In the Scavenger the Isoflurane is absorbed by a charcoal filter and only pure air enters the environment.

Univentor 410 Anaesthesia Unit uni410

The Univentor 410 Anaesthesia Unit is designed to control the mixture of liquid anaesthetic and air with the precision required to successfully operate on animals weighing from 20-500 grams. Model 8323001 is designed to operate with compressed air reduced to not more than 1 bar whereas model 8323002 has been adapted to work with a pulse-free airpump. The traditional flow meter block and the vaporiser are redesigned into one very small, user and animal friendly unit which enables savings up to 75%. Air and anaesthetic is mixed in the vaporiser according to setting and may be delivered into an anaesthetised box, through a mask or to a ventilator. Even though pre-calibrated for Isoflurane other anaesthetics may be used taking the various properties into consideration.

Univentor 1200 Anaesthesia Unit Univentor_1200

The Univentor 1200 series of anaesthetic instruments, for animals weighing 20-500 grams, are specifically developed for lengthy inhalation anaesthesia and other applications where additional gas is required. With the 1200 oxygen or other gases are easily and accurately added. The instruments produce the anaesthetic gas by vaporising Isoflurane in air, which is delivered by an internal pump, and in any gas which may have been added.

Univentor 2010 Scavenger Unit uni2010

The Univentor 2010 Scavenger collects and inactivates any surplus anaesthetic gas that may be produced when using the Univentor 400 or 1200 Anaesthesia Units so as to provide a safer working environment.

The gas is collected and passed through active coal contained in a cartridge. As the cartridge approaches saturation successive alarms are triggered providing ample warning. Each instrument is delivered with four cartridges.

When using an induction chamber and a mask the Scavenger Gas Routing Switch should be used to enable correct and safe switching.

Univentor Induction Chamber chamber_mouse

Induction Chamber for rats 1.4 litre and for mice 0.8 litre.

Univentor Gas Switch gas_switch

The Univentor Gas Routing Switch enables instant switching between, for example, the initial induction chamber to, for example, a mask.

BioMedical Instruments Surgical Table surgical_table Electrically Heated Surgical Table with integrated Gas-Exhaust
  • electrically heated inserts available for rats and mice
  • local exhaust ventilation of anaesthetics according to the latest standards in occupational safety
  • economic breathing mask with optimized gas flow for rats and mice
  • autoclavable
  • stand alone version for short-term anaesthesia
  • adapted to stereotatic systems for long-term anaesthesia

BioMedical Instruments Breathing Mask mask_back

BioMedical Instruments Breathing Mask in two sizes for rats and mice.