RWD Surgical & Anesthesia Solutions for Small Animal Research: There is growing demand for anesthesia equipment designed for small laboratory animals. RWD designs and manufactures complete anesthesia systems and accessories for the smallest preclinical research subjects.  These systems are designed to deliver highly effective anesthesia with depth modulation.  RWD systems are also designed with user safety as a priority.  The system includes excellent waste gas scavenging to protect users from the negative effects of short-term exposure to anesthetic gases.

The experimental system is equipped with a gas recovery system to provide a safe experimental environment to maximize the protection of the operator. You have the ability to replace the different types of anesthesia machines and masks to meet the needs of the animal experiments, such as cerebral ischemia and myocardial ischemia model, osteoporosis model, tail vein injection, abdominal aorta blood sampling, heart blood sampling, ventricular injection, tissue / organ removal and other animal surgery experiments.
By changing the different types of stereotaxic instruments and adaptors, you can meet the needs of different animal experiments, such as the neurological disease models (Parkinson’s, Alzheimer’s disease, craniocerebral injury, spinal cord injury, etc.), brain drug injection, cannula implantation (long term repeated administration), physiology experiments (such as nerve stimulation, signal recording, wireless telemetry, etc.), microdialysis experiments (probe implantation and short-term dialysis), and other experiments.
This solution offers a combination of anesthesia machines and ventilators. While keeping the animal under anesthesia, the ventilator provides a certain volume (tidal volume) of oxygen and respiratory rate to support the normal breathing of animals. It can meet the requirements of long surgeries or surgeries on animals suffering from certain diseases (such as cardiovascular and cerebrovascular diseases, hypertension, cerebral infarction, thrombosis), and is suitable for mice, rats, rabbits, cats, and other animals within 5KG.
These small animal anesthesia systems can offer improved level of control over depth and duration of anesthesia, especially for prolonged procedures. Choose between isoflurane or sevoflurane with various options for air supply (oxygen or air, 0.1-4L/min flowmeter), induction chambers, masks, filter canisters, and gas evacuation apparatuses, selected for anesthesia maintenance of different animals. Suitable for mice, rats, hamsters, guinea pigs, rabbits, cats, and other animals within 7kg. Optional upgrade into portable anesthesia machine, saving space and facilitating movement.
Simultaneous anesthesia for 1-5 small animals, including mice, rats, cats, rabbits, and other animals within 7kg with independent control of every channel. Main oxygen flowmeter allows 0.1-4L/min with gas flow to induction chamber independently controlled from 0-2.5L/min. Choose between isoflurane or sevoflurane with various options for air supply (oxygen or air), induction chambers, masks, filter canisters, and gas evacuation apparatuses, selected for anesthesia maintenance of different animals. Optional upgrade into portable anesthesia machine, saving space and facilitating movement.
Choose between isoflurane or sevoflurane. Includes fixed brackets for induction chamber, gas evacuation apparatus, and optional filter canister. Various options for air supply (oxygen or air, 0.1-4L/min flowmeter), induction chambers, masks, filter canisters, and gas evacuation apparatuses should be purchased separately.
R620-S1 universal veterinary anesthesia machine is applicable to clinical anesthesia of dogs, cats, pigs, monkeys, rodent, reptiles, birds etc. A rail-mounted CO2 absorber, user-friendly design, inspection policy, intelligent waste gas scavenging, and minimal operation design ensures vets feel the system is easy-to-use, safe, and reliable to perform surgery on animals.
RWD developed a new Dual-Drug Veterinary Anesthesia Machine based on the veterinary clinic, which is suitable for clinical anesthesia of dogs, cats, pigs, monkeys, rodents, reptiles and birds.
Ventilators are the most common instrument for assisting animal respiration, widely used in preclinical research, clinical medicine, and veterinary medicine (such as myocardial ischemia model), and for respiratory management in animal surgery, emergency treatment, and respiratory therapy. The VentStar offers a 7-inch LCD touch screen display, small size, and is suitable for mice, rats, guinea pigs, and other animals weighing 10g-1kg. Choose between volume control or pressure control and customize up to 10 sets of respiratory parameters for convenience.
Mechanical ventilation device in accordance with veterinary clinical practice. 3 modes of operation include VCV, PIPCV, and APNEA to meet multiple clinical applications. Accommodate a variety of animals with real-time adjustable respiratory ratio and airway pressure rate and choose from two different sized bellows for output tidal volume of 20~300mL or 300~1500mL.

Concentric Tubing Masks

  • The Concentric Tubing design is sturdy and durable and can be placed on the benchtop. The entire mask (including tubing) is made of non-metallic material suitable for MRI environments. The tube can be secured by a fixed bracket, height of the mask is adjustable, and it can also be fixed and placed in MRI, PET, and SPECT imaging systems. Options for single, dual, and 5-channels.
  • The mask can be secured by fixed bracket (68625) or the fixed platform (68626), height of the mask is adjustable, and it can also be fixed and placed in MRI, PET and SPECT imaging systems
  • Simultaneous experiments can be performed on 2-5 rats or mice with five channels of anesthesia mask

Bowl Masks

  • Clear cone for full visualization of muzzle.
  • The Cone Masks can be installed onto 68620 anesthesia operation platform(300*210*75mm) to secure the animal in it.
  • Height of the mask can be adjusted to meet different experimental needs.
  • Special semi-enclosed mask design, coordinating with the evacuation apparatus to absorb and remove the waste gas outside the mask completely
Cone Masks

  • Specially designed with inlet tubing inside, enabling anesthesia exhaust gas to be absorbed by a gas filter canister.
  • Allows access to eyes, ears, and top of head.
  • The cone masks can be installed onto 68630 operation bed for single cone mask or 68657 manifold for five cone masks.

Stereotaxic Frame Nose Cone Masks

  • These masks are specifically designed to fit most stereotaxic frames and deliver anesthetic gases with minimal exposure during surgery. The animal’s teeth are placed over the incisor bar within the mask.
  • Two kinds of Stereotaxic Frame Nosecone Masks are available: the passive scavenging mask contains a collinear inlet and outlet to be used with a charcoal canister only, and the active scavenging mask offers separate (non-collinear) inlet and outlet on both sides that can be used with an evacuation apparatus.

Imaging Masks

This mask mainly works with ultrasound animal imaging heating platform and the anesthetic mask for the actual operation of ultrasound imaging to ensure
that animals are quiet, fixed, to meet the needs of special environmental imaging.

The anesthetic gas is inducted into the chamber, and exhausted to the connected charcoal canister


  • Transparent plexiglass material, durable, easy to clean, convenient for observation of the anesthetic state of animals.
  • Positive pressure gaskets at lids.
  • Both ports on one side to reduce tubing in procedure area.
Mutli-Output Flowmeter
R510-07 five-output flowmeter and R510-09 can be used in conjunction with R520 and R540 series small animal anesthesia machines to meet the simultaneous anesthesia of 5 or 2 animals, and each port can adjust the flow rate independently.
Extended Flowmeter

RWD anesthesia is equipped with an extended flow meter mounting position, which expands a variety of gas flowmeters to meet the need of a variety of gas supply.


One key to reset, real-time display of filter canister weight accurate to 1g. Two level saturation alarm to remind you to replace filter canister:

  • Level I: large canister reaches 1000-1020g, small canister reaches 300-310g, 0.5Hz
  • Level II: large canister reaches 1020-1500g, small canister reaches 310-500g, 2Hz
  • Overweight alarm: more than 1500g, audible and visual alarm

Mounting bracket (R548-MB) is optional, to mount on the mobile stand.


Used to absorb isoflurane, sevoflurane, enflurane, and other gases. Disposable, large and small sizes available: large canister (net weight: 800g) absorbs 200-240g gas; small canister (net weight: 250g) absorbs 50g gas.


  • The built-in temperature compensator ensures the stable concentration of anesthetic gas at different temperatures and flow rates, the flow range is 0.2-10L/min

  • Mixed anesthetic gas output pressure range △ P ≤ 2.5kPa

  • Applicable temperature range: 10-35 ℃

  • Good tightness, internal 50kPa pressure can be maintained with zero leakage, safe and reliable

  • Internal capacity is not less than 120ml and the ranges of
    vaporizer concentration are Isoflurane: 0-5% and Sevoflurane: 0-8%

  • Lock structure and open/close security protection ensures safety

  • The average filling rate is greater than 2ml/s and the dosing
    adapter can withstand pressure of 0.1mpa without leakage
    (Key Fill)

Two kinds of vaporizers:
Three dosing methods:
Installation Type:


  • Flow rate: 5L/min
  • Generate medical oxygen(USP93%) from the air. Cost effective and never run out of oxygen supply
  • Tri-filtration system, 99.999% of bacteria, viruses and odor can be removed effectively
  • Quiet design, stable performance, safe operation, light weight and easy to move
  • Outlet pressure 40-60KPa
  • Power: 220V, 50Hz,380VA
  • Dimension L 248 x W 330 x H 535mm

The gas evacuation apparatus was designed to safely and actively remove waste gas associated with everyday inhalation anesthesia. The waste gas from cone masks, concentric tubing masks, and stereotaxic frame nosecone masks can be pulled through an activated charcoal canister so that the air can be re-circulated into the room. The evacuation apparatus will accommodate waste gas supply from up to 5 masks. The newest design has been upgraded to offer a wider range of exhaust flow, low noise, and exquisite exterior design.


  • New design makes it easy to carry.
  • A wide range of flow rates -8~50LPM, display on the LED screen in real time.
  • No venting hood is required while using.
  • Powerful capture allows evacuation of waste gas supply from 1 to 5 masks.
  • The velocity of “pull” or “draw” can be adjusted depending on the stations (masks).
  • Significant evacuation effectiveness to replace the traditional exhaust fan.
  • Small size 215mm (W)*215mm (D)*170mm (H).
  • Digital scale to view the weight of canister directly from the LED display.
  • Two level overweight alarm: 990g and 1010g.
  • Power: 100-240V, 50/60Hz.