I have been using Dr Humphrey’s anaesthetic system for over ten years and I have no hesitation in recommending it to fellow Vets. As you are probably aware Dr Humphrey is a medical anaesthetist who designed his circuit for mission stations and realised it could be used in a veterinary scenario. It is both efficient to use and simple in design to give excellent anaesthetics and to run very economically. He has developed a low flow system which can operate both on small patients or with the re-breathing system for larger dogs. This operates on extremely low flows for large dogs and this of course is an enormous financial saving both for the inhalant used and also for oxygen consumption. Dr Humphrey has revolutionised the veterinarians modus operandi by providing excellent anaesthesia which becomes a lot more economical and less risk for staff in theatre fcurredrom exposure to the gas .Initially I used the Isoflurane in my circuit which was very satisfactory but upgraded to Sevoflurane approximately five years ago. The reason for the change is that Sevoflurane is not only a more potent anaesthetic but also safer for reversal. It gives superb relaxation of abdominal muscles for surgery which allows easier wound closure and I believe less pain in recovery. It also provides a better recovery form the effects of anaesthetics and is the chosen anaesthetic in the human field where paediatrics endorsed it for babies and children some years ago. It was endorsed to me by Dr Jenny Thomas the head anaesthetist at Cape Town Red Cross Hospital and if anyone needs reassurance please speak to her (I am quite sure she would be delighted to discuss its merits ). As a profession we are indeed very fortunate to have Dr Humphrey as an educator and supplier of the best equipment which he personally will service on site (a very important part of using equipment).
It should be noted that the low flow system is particularly important for saving money and making it affordable to use. We are also fortunate that Sojourne (generic of Sevoflurane) is available to us in RSA at a fraction of the cost incurred in the UK. Dr Humphrey has had major effect in bringing the best equipment to us and he has not only spoken at International Conferences both here and also at the BSAVA in the UK where he has been very well received .Another veterinarian who is a leading anaesthetist is Dr Kenneth Joubert who would also vouch for Dr Humphrey’s credentials .The vaporiser for the Sevoflurane is the Rolls Royce in its field manufactured in the UK. It provides very accurate calibration which was illustrated to me a month or two ago.