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Topic: Anesthetic machine

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Anaesthetic vaporiser

Bispectral index monitor

Anesthesia awareness

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	Anesthetic evacuation regulator - Patent 4987894
		The anesthetic evacuation regulator of claim 2, further comprising a flexible hose connected to the butterfly valve and to the atmospheric equalizer which controls the vacuum applied to the pop-off valve of the anesthetic machine.
		The anesthetic evacuation regulator of claim 7, wherein said atmospheric equalizer includes a valve operative to control the amount of ambient air which is mixed with the waste gas prior to being exhausted by the vacuum source.
		The anesthetic evacuation regulator of claim 9, wherein the butterfly valve is adjustable between two extreme positions, one position which will result in the waste gases being all the exhausted gases and a second position in which the waste gases will be only a small percentage of the exhausted gases.
	www.freepatentsonline.com /4987894.html (3636 words)

	Anesthetic Circuits (Site not responding. Last check: 2007-11-01)
		The large animal anesthetic circuit is primed by turning on the oxygen flow meter and setting the vaporizer dial to 4 or 5 % for several minutes prior to attachment to the endotracheal tube.
		Priming of the anesthetic machine is usually done prior to induction of anesthesia using an injectable agent.
		The drain is opened after use of the machine to aid in drying the condensed water vapor on the inner surfaces of the machine.
	www.vetmed.wsu.edu /depts-anesthesia/_archive/equipment/circuits.htm (2148 words)

	Method and apparatus for converting patient breathing system between circle and non-rebreathing configurations - Patent ...
		This application pertains to anesthetic machines and circuitry and, in particular, to an adaptor for converting such apparatus from the "circle" to the "Bain circuit" configuration.
		A control valve in the circle circuit portion of the coupler is opened when the anesthetic machine is connected into the circle circuit, but closes when the anesthetic machine is disconnected from the circle circuit for connection into the Bain circuit via a mating coupler.
		Anesthetic machine 14 is disconnected from the inlet port of one way valve 22 and reconnected to the inner (inspiratory) hose 30 of the coaxial Bain hose assembly 32.
	www.freepatentsonline.com /4596246.html (3705 words)

	Anesthetic Gases: Guidelines for Workplace Exposures
		Many anesthetic agents such as diethyl ether, divinyl ether, cyclopropane, and ethylene, were effective in their intended use but posed a fire and explosion risk in the presence of a sufficient oxygen supply and an ignition source such as a spark from static electricity or electrical equipment.
		Finally, the machine serves as a frame and source of pneumatic and electric power for various accessories such as a ventilator, and monitors that observe or record vital patient functions or that are critical to the safe administration of anesthesia.
		Venting waste anesthetic gas via the exhaust grille or exhaust duct of a nonrecirculating ventilation system is an example of a passive system: The anesthetic gas is initially moved along by the positive pressure from the breathing circuit until it reaches the gas disposal assembly.
	www.osha.gov /dts/osta/anestheticgases (14444 words)

	Anesthesia Equipment: The Anesthetic Machine
		Regulators may be part of the anesthetic machine (e.g., those that take E tanks) or separate devices (e.g., those used on H tanks).
		This is the exit port where gases leave the anesthetic machine and enters the breathing circuit.
		This is the point where all breathing circuits attach to the anesthetic machine.
	www.cvm.okstate.edu /courses/vmed5412/LECT014.htm (1389 words)

	Office of Animal Research Ethics, Care, and Compliance (OARECC) (Site not responding. Last check: 2007-11-01)
		Because the anesthetics are eliminated from the blood by exhalation, with less reliance on drug metabolism to remove the drug from the body, there is less chance for drug-induced toxicity.
		Anesthetic effects are seen within 15 minutes of administration and may last from 45 minutes to several hours, depending on the drug used.
		Once animals are under anesthesia they must be monitored closely while they are anesthetized to ensure that they do not become too deep and die, and to ensure that they do not become too light and experience pain from the surgical procedure.
	hsc.unm.edu /som/research/acc/anesthetic_use_guidelines.shtml (7208 words)

	H&M Rubber Company - Rebreather Bags
		The breather bag is attached to the anesthetic machine combining oxygen with an appropriate anesthetic for maintaining the unconscious state of the patient.
		On the machine, there is a circuit generally comprising a plurality of tubes for the passage of mixed gases from a source through various other devices such as an absorber canister and a humidifier to the patient.
		In the use of the anesthetic machine, a facial mask is typically attached to the patient end of the circuit for initial delivery of the anesthetic gas to the patient.
	www.h-mrubber.com /HM_Breather.html (670 words)

	GASNet Anesthesiology: The Anesthesia Gas Machine (Site not responding. Last check: 2007-11-01)
		The Anesthesia Gas Machine is a large, current, full-text, comprehensive treatment of all aspects, from the University of Detroit Mercy.
		The Anesthesia Gas Machine Part 1 (mentioned earlier on this page) has a large section at the end which presents a minimum checklist (when time to check the machine is not available), and a modified checklist designed to eliminate common faults (and add a few reminders not written by the FDA).
		A "virtual anesthesia machine" is an animated gas machine illustration on computer screen, which is modifiable when the user selects different gas flows, vapor concentrations, etc. It requires Shockwave, or there is a downloadable version.
	gasnet.med.yale.edu /machine/machine.htm (1378 words)

	Rabbit Anesthesia - Part 2
		Anesthetic induction is the administration of the anesthetic agent(s).
		Due to the nature of the rabbit's GI tract and the fact that he cannot vomit, it is not necessary to fast a rabbit extensively prior to induction.
		Respiration can be monitored visually by an assistant, through a regular or esophageal stethoscope, by a respiratory monitor (attaches between the ET tube and the anesthetic machine to measure changes in air flow), or by a pulse oximeter (measures oxygen saturation of the blood).
	www.hrschicago.org /anesthesia2.html (1724 words)

	2_inhalants
		Induction is often facilitated by the use of injectable anesthetics but induction may be accomplished by mask or using an anesthetic chamber.
		You are required to undergo hands-on training prior to receiving permission to use anesthetic machines or to use positive pressure ventilation.
		It must be used in an anesthetic machine with a precision vaporizer (for halothane).
	www.uaf.edu /iacuc/training/module_2/2_inhalants.html (1042 words)

	Anesthesia
		The lack of significant complications from anesthesia is due to a combination of expertise, thorough pre anesthetic testing, and state of the art anesthetic and monitoring equipment.
		The oxygen in the tanks is delivered to the anesthetic machine via special piping throughout the hospital.
		This small percent of anesthetic, added to the oxygen the pet is breathing, is all that is needed to achieve complete surgical anesthesia.
	www.moorevet.com /Anes.htm (1874 words)

	ULAR: Injectable Anesthetics and Sedatives (Site not responding. Last check: 2007-11-01)
		The anesthetic liquid is administered as the inhaled vapor only and should not be allowed to come in contact with the eyes or mucous membranes of the animal.
		A cotton or gauze pledget soaked with the anesthetic may be placed beneath a wire screen inside a large jar; the rodent is then placed on the screen in the jar, and the jar is covered.
		Administration of high vapor pressure anesthetics like halothane, isoflurane or enflurane must be performed with a precision vaporizer, an anesthetic machine and a gas scavenging system.
	www.rgs.uci.edu /ular/useofanesthetics.htm (2788 words)

	Waste anesthetic gas scavenging systems (Site not responding. Last check: 2007-11-01)
		The limit for halogenated anesthetics is 2 ppm and for nitrous oxide is 25 ppm.
		Exposure to waste anesthetic gases in veterinary practices greatly exceeds these recommended limits when waste anesthetic gases are not scavenged.
		Passive conduction of waste anesthetic gases from the work environment is accomplished by channeling gases from the pressure relief valve of the anesthetic machine to the outside.
	www.vetmed.wsu.edu /depts-anesthesia/_archive/equipment/scavenge.htm (227 words)

	Anesthesia, Analgesia and Sedation
		Anesthetic drugs that have exceeded their expiration date may not be used, even for terminal procedures
		Analgesic effect is poor and addition of an analgesic to the anesthetic regimen is necesssary for surgery.
		Anesthetic concentration is accomplished by sets of mixing valves or a precision vaporizor.
	www.ahc.umn.edu /rar/anesthesia.html (7702 words)

	Canine Ovariohysterectomy (spay)
		Patient is connected to anesthetic machine and heart/respiratory monitors.
		This machine is equipped not only with the routine Isoflorane anesthetic vaporizor but also a newer anesthetic vaporizor for Sevoflorane.
		The pulse oximetry machine is connected that will inform the doctor of the patient's percentage of oxygen in the blood stream during the surgery.
	www.ahrdvm.com /surgery/can_spay.htm (732 words)

	Surgical Equipment - Animal Eye Care
		Furthermore, every patient receiving general anesthesia is placed on a ventilator anesthetic machine, which means that the machine assists in the breathing of the patient.
		This is a microprocessor-controlled anesthesia machine and ventilator, meaning that at all times, the machine is assisting in breathing for the anesthetized patient.
		Capnography is the measurement of the amount of carbon dioxide (CO2) in the air as it is breathed in and out by the anesthetized patient.
	www.animaleyecare.net /surgery/anesthesia.htm (490 words)

	Topics of Interest > Veterinary Anesthesia
		There are a large number of induction anesthetic drugs available to us; we use the drug that is most appropriate for that particular animal.
		The tube is then hooked up to an anesthetic machine which allows us to administer a gas anesthetic.
		A machine is also used to measure the animal’s carbon dioxide level, so that we can make sure it is breathing well enough.
	www.southpaws.com /topics/anesthesia.htm (705 words)

	Anesthesia Patient Safety Foundation: Resources (Site not responding. Last check: 2007-11-01)
		Evidence from the recent outbreak of SARS in Toronto, suggests that anesthesiologists (and other health care workers) exposed to oral secretions at the time of intubation are at 'high risk' of acquiring the infection.
		Place the anesthetic machine as far from the patient as practically possible.
		Consider using a surface away from the anesthetic machine for placement of contaminated equipment (eg laryngoscope).
	www.apsf.org /resource_center/clinical_safety/sars.mspx (1454 words)

	GME - Anesthesiology Residency - Curriculum
		Other introductory topics include principles of ventilator function, the anesthetic machine, fundamentals of various monitoring equipment, and the pertinent aspects of anatomy related to the practice of anesthesia and various aspects of regional anesthesia.
		In addition, the residents learn how to prepare an operating room for the anesthetics, along with the safety features and troubleshooting of the anesthetic machine.
		They are expected to plan anesthetic management and to discuss cases with the attending at a more sophisticated level.
	www.maimonidesmed.org /GMEresidency/Anesthesia_Curriculum.htm (2371 words)

	Controlling Exposures to Nitrous Oxide During Anesthetic Administration -- DHHS (NIOSH) Publication No.94-100
		The rubber and plastic components of the anesthetic equipment are potential sources of N2O leakage because they may be degraded by the N2O and the oxygen as well as by repeated sterilization.
		These sources include leaks from the high-pressure connectionsCthat is, from the gas delivery tanks, the wall connectors, the hoses connected to the anesthetic machine, and the anesthetic machine (especially the on-demand valve).
		Low-pressure leaks occur from the connections between the anesthetic flowmeter and the scavenging mask.
	www.cdc.gov /niosh/noxidalr.html (3345 words)

	Problem anesthesia? --- It's not the vaporizer!! (anesthetic machine maintenance and trouble shooting problems)
		This is not the regulator to use when using an anesthesia machine.
		If you are using a Matrix anesthesia machine with this device found on the inspiratory dome, this is a potential problem.
		The Stephens machine is a difficult machine to change the Baralyme, as you probably already know.
	www.vspn.org /Library/Rounds/VSPN_VSPN010905.htm (2214 words)

	iknowledgenow.com (Site not responding. Last check: 2007-11-01)
		The anesthetic machine is the basic unit that delivers inhalant anesthetics to patients.
		A thorough understanding of this machine is essential to the technician to prevent injuries or even potentially death to the patient.
		Though the senses of sight, hearing, and touch of a veterinary nurse are highly trained and attuned to his/her surroundings, machines that aid with anesthetic monitoring are invaluable for patient care in the peri-anesthetic period.
	www.iknowledgenow.com /search.cfm?keywordlist=Breathing (5210 words)

	Production of compound A under low-flow anesthesia is affected by type of anesthetic machine -- Yamakage et al. 48 (5): ...
		Production of compound A under low-flow anesthesia is affected by type of anesthetic machine -- Yamakage et al.
		Assessment of low-flow sevoflurane and isoflurane effects on renal function using sensitive markers of tubular toxicity.
		Factors affecting the concentration of compound A resulting from the degradation of sevoflurane by soda lime and Baralyme® in a standard anesthetic circuit.
	www.cja-jca.org /cgi/content/full/48/5/435 (1584 words)

	Anesthetic Monitoring - People vs. Machines
		Many are using short-acting anesthetics for radiographic and grooming procedures.
		It was felt that the presence of a well-trained veterinary technician was the best assurance of having equipment, including the anesthetic machine, properly set up.
		Monitoring machines can give you information, but you have to know what to do with the information.
	www.vspn.org /VSPNSearch/VSPNLibrary/VSPN000731.htm (254 words)

	Veterinary Anesthetics Unit: Stephens Anesthetic Machine
		The Stephens is a closed circuit anaesthetic machine with the advantages of simplicity of operation, minimal consumption or anesthetic agents and relatively low cost.
		The apparatus consists of a Stephens Universal Anesthetic Vaporiser, two soda lime canisters, a set of unidirectional valves, a reservoir or rebreathing bag, a flush valve (red), a blow off / scavenger valve, breathing hoses and "Y" piece, an oxygen flow meter and associated fittings.
		The anesthetic circuit is of the circle type, with the vaporiser placed within the circle in the inspiratory side.
	www.compad.com.au /cms/im3vet/pages/Stephens_Anesthetic_Machine/71 (283 words)

	Flowmeters (Site not responding. Last check: 2007-11-01)
		Every anesthetic machine has a flowmeter to set the oxygen flow.
		Be sure oxygen is flowing before you connect an animal to this machine!!!
		Flowmeters look a little different from machine to machine but they all function in a similar fashion.
	www.uaf.edu /iacuc/training/powerpoint/anesthetic_machines/tsld012.htm (51 words)

	Anesthetic Induction
		b) Regardless of the apparent similarity between anesthetic candidates, anesthetic agents should not be selected automatically.
		i) insure adequate anesthetic is present in the vaporizer
		Lidocaine is the preferred topical laryngeal anesthetic as it is readily available and very inexpensive.
	www.vasg.org /anesthetic_induction.htm (922 words)

	Anesthetic Vaporizers - New Refurbished Used
		• Can be used with all anesthesia machines which have formerly been fitted with a Vapor 19
		• The Vapor 19.1 may not be connected downstream the fresh gas outlet of the anesthetic machine.
		• Amount of anesthetic agent to fully charge the vaporizer=125ml
	www.usedanesthesiamachine.com /vaps.html (195 words)

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