HEMOTHERM Model 400CE Dual Reservoir Cooler Heater Operation Manual Rev H

©

Copyright 2017, Cincinnati Sub-Zero Products, LLC. All rights reserved. Manual 56075 Rev. H ECN# M1801-5437 Page 2 of 50

OPERATION MANUAL

HEMOTHERM MODEL 400CE

SYMBOLS Consult instructions for use and/or manual before operating

Water Temperature

~

Pump

AC Voltage

Cool

Outlet

Heat

Return

Compressor

Drain

Water Temp – Heat

Power Cord Holder

Water Temp – Cool

Change Water Monthly

Temperature Set

Clean Condenser Monthly

Low Water

Clean Water Filter Quarterly

Test Indicators

Equipotentiality

Silence Alarm

Protective Earth

High Limit

Danger; Risk of Electric Shock

Low Limit

Power Fail

High Heater

Disconnect Power Before Servicing

Low Heater

Earth (Ground)

Temperature Limit

Risk of Explosion: Do not use in the Presence of Flammable Anesthetics

Operating Instructions or “Important/Caution Information”

Type BF Equipment

Decreasing Temperature

Fill to Screen

Increasing Temperature

Separate collection for electrical and electronic Page 3 of 50

OPERATION MANUAL

HEMOTHERM MODEL 400CE

®

HEMOTHERM

MODEL 400CE OPERATION MANUAL

Cincinnati Sub-Zero Products, LLC, reserves the right to make equipment changes and improvements which may not be reflected in this manual.

This document may not be reproduced in whole or in part without written permission from Cincinnati Sub-Zero Products, LLC.

HEMOTHERM®, GELLI-ROLL®, MAXI-THERM®, MAXI-THERM® LITE, TEMP-PAD® and PLASTIPAD® are registered trademarks of Cincinnati Sub Zero Products, LLC, Cincinnati, Ohio USA.

©Copyright 2017, Cincinnati Sub-Zero Products, LLC. All rights reserved.

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OPERATION MANUAL

HEMOTHERM MODEL 400CE

WARNING A physician's order is required for use and the setting of equipment and blanket temperature. Check patient's temperature and skin condition of areas in contact with blanket; also, check blanket water temperature at least every 20 minutes, or as directed by physician. Pediatric patients, temperature-sensitive patients with vascular disease, surgical patients, diabetics and Raynaud’s disease patients should be checked more frequently. Notify the physician promptly of any change in patient status in order to avoid serious injury or death. The HEMOTHERM is to be operated by a professionally trained perfusionist – with a physician’s order for use and the setting of equipment and blanket temperature. Do not use the HEMOTHERM MODEL 400CE Blankets distal to arterial cross clamping. Non-observance can lead to thermal injury. Thermal injury may occur if heating/cooling blankets are used with a patient with an ischemic limb. Perfusionist must operate the HEMOTHERM when connected to extracorporeal circuit heat exchanger. Lack of proper monitoring may result in serious injury or death. The operator of the unit regulates the desired fluid temperature. Frequent observation of the actual blood temperature and body temperature is required. Perfusionist must monitor equipment continually during machine operation to ensure there are no “alarms or intervention” required. Lack of proper monitoring may result in serious injury or death. No modification of this equipment is allowed without prior, written authorization from CSZ. Failure to do so may result in damage to the HEMOTHERM system and/or patient injury. The method of temperature control provided by all cooler/heater units presents the danger of heating or cooling body tissues, particularly the skin and or blood, to a point where they are injured, i.e., burns or frostbite, respectively. Depending on the extent and severity of a burn, very serious and even fatal complications may arise. Prevent excessive and/or prolonged tissue pressure and shearing forces, especially over bony prominences. Failure to do so may result in tissue injury. Do not place additional heat sources between the patient and blanket. Skin damage may result. Prep solutions have been reported to injure the skin when allowed to remain between patients and a water-circulating heating blanket during prolonged procedures. The area between the patient and the blanket should be kept dry to avoid injury to patient. Proper sanitation procedures must be practiced and hygienic safety must be maintained, to prevent contamination. Contamination can affect patient’s health, i.e. skin irritation/rash or sepsis and infection may result. Upon receipt of the HEMOTHERM, the unit should be disinfected per the WATER SYSTEM CLEANING & DISINFECTION PROCEDURE. Additionally, any unit removed from storage should be disinfected. Failure to do so could result in patient and/or caregiver infection. Do not use the HEMOTHERM system in the presence of flammable anesthetics. Risk of explosion can result. Power interruption will cause the HEMOTHERM to revert to FILL MODE resulting in no therapy to the patient. Follow instructions for desired mode to resume operation. Failure to resume therapy could result in serious injury or death. Page 5 of 50

OPERATION MANUAL

HEMOTHERM MODEL 400CE

WARNING Any time water is found leaking into or around the unit, connecting hose, and/or blanket, turn the unit off, disconnect the power cord from its power source, and correct the problem before proceeding. Water leaks could lead to electric shock. Water leaks could present a slip and/or fall hazard. Proper sanitation procedures should be followed including, but not limited to, the preventative maintenance described in this manual. Leaky blankets or hoses, as well as unapproved blankets or hoses should never be used. Water leaks present a risk of infection and should be handled accordingly. Contaminated blankets or hoses could contaminate the unit. Reusable accessories should be disinfected on a quarterly basis. Failure to do so could result in patient and/or caregiver infection. Exercise extreme caution if the unit is used for patients who are electrically susceptible (probe, catheter, or electrodes connected to the heart). Electrical Hazards may result. Materials of good thermal conductivity, such as water, gel and similar substances on the blanket, with the HEMOTHERM not switched on may decrease the temperature of the patient. Do not position unit near any objects that can generate a strong electrical/magnetic field. Unit has been investigated to be in compliance with IEC 60601-1-2. Potential electromagnetic interference may result. The repair, calibration, and servicing of the HEMOTHERM should be performed by qualified Medical Equipment Service Technicians, Certified Biomedical Electronics Technicians, or Certified Clinical Engineers familiar with good repair practices for servicing medical devices, and in accordance with instructions contained in this manual. Improper repair can result in damage to the HEMOTHERM system and patient injury. The HEMOTHERM must be serviced and/or preventive maintenance must be performed at specific intervals as outlined in the manual. Improper repair and inadequate maintenance can result in damage to the HEMOTHERM system and patient injury. Always unplug the unit before accessing internal components during service. Failure to unplug the unit could result in electric shock. Before returning the HEMOTHERM to patient use after repairs, the FIRST TIME SETUP/SYSTEM TEST ROUTINE must always be performed. Improper repair and inadequate maintenance can result in damage to the HEMOTHERM system and/or patient injury. Remove the HEMOTHERM from service if the outer casing or key pad is cracked or internal components are exposed. Contact with internal components could result in electric shock or thermal injury to the patient or operator. Additionally, the patient or operator could be exposed sharp edges. Before performing any disassembly procedure, be sure the power switch is in the OFF/”O” position and the power cord is unplugged from the receptacle. Electrical Hazards may result. Keep HEMOTHERM grille and condenser clean and free of debris and obstruction. Cool air is taken in through the grille and warm air is evenly expelled through the bottom of the unit. Both the air intake and outlet must be kept clear when the machine is in operation. Blockage of the grille and condenser could result in the unit overheating which could render the unit unable to provide adequate therapy and excessive surface temperatures could cause injury to patient or operator. Keep unit, specifically the grille away from curtains or other obstructions. Page 6 of 50

OPERATION MANUAL

HEMOTHERM MODEL 400CE

WARNING Do not use an adapter plug to by-pass the plug ground lug. Electrical Hazards may result. Use only 20 Amp hospital grade receptacles or electric shock may result. (US only) The HEMOTHERM unit has UL/IEC 60601-1 Class I, type BF applied parts and it should be noted that internal and external electrically isolated components must remain isolated before, during and after any maintenance or repair. Improper maintenance or repair can result in patient injury or damage to the HEMOTHERM unit. To avoid the risk of electric shock, this equipment must only be connected to a supply mains with protective earth. Inspect all blankets for mechanical damage before use. Do not use in proximity to sharp objects. Blanket punctures can result in an increased risk of infection or electrical shock. The warming of transdermal medications (patches) can increase drug delivery, resulting in possible injury to the patient. If a means is needed in restraining a patient either on or under a CSZ Hyper-Hypothermia Blanket or the Connecting Hose, the means should not block the fluid pathways of the HEMOTHERM unit. Failure to do so may result in inadequate treatment. Immediately remove from service and clean & disinfect devices that show discoloration or cloudiness in the fluid lines/circuits. Failure to do so could result in patient and/or caregiver infection.

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OPERATION MANUAL

HEMOTHERM MODEL 400CE

CAUTION  

Caution: Federal law restricts this device to sale by or on the order of a physician. Use only sterile water or water that has been passed through a filter of less than or equal to 0.22 microns. Do not use deionized water. Do not use alcohol. Alcohol may cause heat exchanger, blanket, and/or unit deterioration. Do not use tap water to rinse, fill, refill or top-off water tanks.

 

Do not operate without water, to avoid damage to internal components. Do not overfill. Overfilling may result in overflow when the water in the blanket drains back into the system when the system is turned off. Be careful to not put any strain on any of the electrical cables connected to the circuit boards. Working with electronic boards, plugs, and cables requires delicate handling. Proper Electrostatic Discharge procedure should be followed during replacement of any electronic board. For safe handling and use of chemicals follow manufacturer guidelines.

  

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OPERATION MANUAL

HEMOTHERM MODEL 400CE

TABLE OF CONTENTS

Page No.

TECHNICAL HELP ... 11 AUTHORIZED EUROPEAN REPRESENTATIVE: ... 11 BEFORE YOU CALL FOR SERVICE... ... 11 IN-WARRANTY REPAIR AND PARTS ... 11 RECEIVING INSPECTION... 11 IMPORTANT SAFETY INFORMATION ... 11 SHIPPING PARTS ... 12 WORLDWIDE ORDER PLACEMENT ... 12 SECTION 1. INTRODUCTION ... 13 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 1.10 1.11 1.12 1.13

GENERAL SAFETY PRECAUTIONS ... 13 INTENDED USE... 14 DESCRIPTION, EXTERNAL FEATURES AND PRODUCT PARTS ... 14 FUNCTION OF HEMOTHERM MODEL 400CE COOLER/HEATER ... 20 COOLING SYSTEM ... 21 HEATING SYSTEM ... 21 WATER CIRCULATION SYSTEM ... 22 GENERAL OPERATION ... 23 REMOTE CONTROL OPTION ... 27 HEMOTHERM SYSTEM EQUIPMENT & ACCESSORIES ... 27 HEMOTHERM SYSTEM EQUIPMENT SPECIFICATIONS... 29 ESSENTIAL PERFORMANCE TABLE ... 31 HEMOTHERM CLASSIFICATION AND CERTIFICATIONS... 31

SECTION 2. OPERATING INSTRUCTIONS ... 35 2.1 2.2 2.3 2.4

INITIAL SET-UP ... 35 CONNECTION PROCEDURE ... 36 DISPOSAL OF WASTE PRODUCTS ... 36 SAFETY CONTROLS ... 37

SECTION 3. MAINTENANCE AND REPAIR ... 38 3.1 3.2 3.3 3.4 3.6 3.7 3.8 3.9 3.10 3.11

GENERAL ... 38 EXTERNAL CLEANING INSTRUCTIONS... 38 TEMPERATURE ACCURACY CHECK ... 38 MAINTENANCE OF THE WATER RESERVOIRS ... 39 MAINTENANCE OF THE WATER FILTER... 42 44 MAINTENANCE OF THE CONDENSER GRILLE ... 44 MAINTENANCE OF THE HYPER-HYPOTHERMIA BLANKETS ... 44 REMOVE FROM SERVICE ALARM (RFS) ... 45 REQUIRED QUARTERLY PREVENTIVE MAINTENANCE CHECKLIST ... 47 REQUIRED MONTHLY PREVENTIVE MAINTENANCE CHECKLIST ... 48

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HEMOTHERM MODEL 400CE

LIST OF ILLUSTRATIONS FIGURE 1-1, FIGURE 1-2, FIGURE 1-3, FIGURE 1-4, FIGURE 1-5,

Page No.

UNIT FRONT PARTS VIEW ... 15 KEYPAD – 115V UNIT... 17 KEYPAD – 115V REMOTE... 17 KEYPAD – 230V UNIT... 18 KEYPAD – 230V REMOTE... 18

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HEMOTHERM MODEL 400CE

TECHNICAL HELP United States and Canada Cincinnati Sub-Zero Products, LLC 12011 Mosteller Road Cincinnati, OH 45241

Telephone ... 1-513-772-8810 Toll Free 1-800-989-7373 Fax 1-513-772-9119 Technical Support 1-888-437-5608 Clinical Support 513-460-2038

BEFORE YOU CALL FOR SERVICE... To help us better serve you, please have the serial number of your HEMOTHERM unit ready when you call for parts or service. The serial number is located on the side panel of the unit along with the part number. IN-WARRANTY REPAIR AND PARTS All parts on your Hemotherm unit are covered by a one-year warranty. To return defective parts or units, first obtain a Returned Materials Authorization (RMA) number from our Medical Technical Service department. A Hemotherm shipping carton will be sent to you, if needed. NOTE: There is a service charge for a replacement shipping carton.

RECEIVING INSPECTION After unpacking the HEMOTHERM System, be sure to inspect the system for concealed damage. Retain all packing material and carefully describe or photograph any damage. Notify the carrier at once and ask for an inspection (in writing). Failure to do this within 15 days may result in loss of claim. Do not return the equipment to Cincinnati Sub-Zero. Call our Medical Technical Service department for further instructions. Refer to the section TECHNICAL HELP for phone numbers.

IMPORTANT SAFETY INFORMATION Refer to this manual for instructions and caregiver information. Read and understand all precautionary information before using, prescribing, or servicing the HEMOTHERM unit. In order to minimize risk of contamination and/or infection, the unit should be disinfected per the WATER SYSTEM CLEANING & DISINFECTION PROCEDURE prior to its first use and at a minimum on a quarterly basis.

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OPERATION MANUAL

HEMOTHERM MODEL 400CE

SHIPPING PARTS Parts to be returned to the factory must be carefully packaged, especially the circuit boards. These boards should be cushioned in static safe packaging material to prevent damage from Electro Static Discharge (ESD). NOTE: SHIPPING DAMAGE WILL BE THE RESPONSIBILITY OF THE SHIPPER. INSURE IF NECESSARY. NOTE: IF CIRCUIT BOARDS ARE NOT SHIPPED IN STATIC SAFE PACKAGING, WARRANTY WILL BE VOID.

If shipping complete unit, to avoid freezing or damage to packaging, the entire system must be drained before shipping.

Worldwide Order Placement United States and Canada

Telephone ... 1-513-772-8810 (U.S.) Toll Free ... 1-800-989-7373 Fax... 1-513-772-9119

Healthlink Europe Burgemeester Burgerlaan 40 5245 NH Rosmalen (Den Bosch) The Netherlands

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OPERATION MANUAL

HEMOTHERM MODEL 400CE

SECTION 1. INTRODUCTION To provide the maximum patient safety during the use of the HEMOTHERM Model 400CE Dual Reservoir Cooler/Heater system, a thorough knowledge and understanding of the system, and its correct application and operating use are required. Each person who is responsible for use or direction of use of the system, such as physicians, perfusionists, technicians and operators must read and understand this operating manual and all precautions and warnings prior to use. It is recommended that this manual be reviewed at least semi-annually as a refresher for safe operation and application. For proper knowledge and understanding, in-service is available upon request. All service associates, who interface with this equipment, must read and understand this Operation Manual in its entirety prior to maintaining or operating the equipment. 1.1

GENERAL SAFETY PRECAUTIONS

The HEMOTHERM has internal self-diagnostics that could prevent the equipment from operating improperly. The most serious of these are the Remove from Service (RFS) alarms. The RFS alarms will require the equipment to be repaired immediately. They are indicated by an “EE” on the Heat side temperature display and a number on the Cool side temperature display. Too high of a temperature in the heat reservoir is also an RFS alarm and will be indicated by the appropriate red LED indicator. All RFS alarms will be announced by an audible alarm that cannot be muted. High and low temperature limiting thermostats are preset at the factory and should perform satisfactorily for the life of the HEMOTHERM unit. Except for refrigeration component repairs, the repair and servicing of the HEMOTHERM unit requires no special tools. However, no attempt should be made to perform any of the repairs or service procedures outlined in this manual unless the proper skills and knowledge are possessed. If water is found leaking into or around the HEMOTHERM unit prior to or during the operating procedure discussed here, immediately disconnect power to the unit and correct the malfunction before proceeding. Before performing any disassembly procedure, press the power switch to the OFF/“O” position and unplug power cord from receptacle. Exercise extreme caution if this equipment is used on electrically susceptible patients (probe, catheter or electrodes directly connected to the heart). Always test for current leakage before returning unit to service. Additional warnings are expressed at appropriate points in the manual. See the Warnings and Cautions in the front of this manual.

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OPERATION MANUAL

1.2

HEMOTHERM MODEL 400CE

INTENDED USE

The HEMOTHERM® Model 400CE Dual Reservoir Cooler/Heater is used to lower, maintain, or raise the temperature of the water flowing through a Blood Oxygenator / Heat Exchanger that is used to cool or warm blood during cardiopulmonary bypass procedures lasting six hours or less. The Hemotherm Dual Reservoir Cooler/Heater may also be used with a hyper / hypothermia blanket under the patient to provide warming through conductive heat transfer. The HEMOTHERM is capable of delivering temperature controlled water to blood heat exchanger(s) and one (1) blanket in the full range of controllability between 3°C - 42°C. There are many variables that affect the heating or cooling of the patient in the extracorporeal circuit. Some of these include the patient's weight, blood flow, gas flow and oxygenator/heat exchangers. The HEMOTHERM has been designed to provide high water flow rates at low pressure for safe and highly efficient operation with a blood oxygenator/heat exchanger. The HEMOTHERM can help maintain normal body temperature (normothermia) particularly during lengthy surgical procedures or where the ambient (room) temperature is set low. This can be done with the use of a Hyper-Hypothermia blanket underneath the patient. 1.3

DESCRIPTION, EXTERNAL FEATURES AND PRODUCT PARTS

The HEMOTHERM Model 400CE Dual Reservoir Cooler/Heater consists of a primary unit that has a water cooling system and a water heating system. These share a common pump, filter and distribution outlet connections. Each water cooling/heating system has its own reservoir, cooler/heater hardware, water level switch, temperature sensor and associated plumbing.

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OPERATION MANUAL

HEMOTHERM MODEL 400CE

FIGURE 1-1, UNIT FRONT PARTS VIEW

Reference Figure 1-1, Unit Front Parts View 1. HANDLES - The handles permit the operator to grip the unit when moving. 2. CONTINUOUS HINGE – Provides durable smooth lid operation. 3. RESERVOIR LID – Covers the reservoir area. 4. LID HANDLE – Allows the user to easily grip the lid for opening. 5. 1/2 INCH QUICK-CONNECT PLUG OUTLET – This fitting is for the connection of the tubing that is connected to the user provided heat exchanger. 6. 1/8 INCH QUICK-CONNECT PLUG OUTLET – This fitting is for the connection of the tubing that is connected to the user provided optional blanket. 7. 1/2 INCH QUICK-CONNECT SOCKET INLET – This fitting is for the connection of the tubing that is returned from the user provided heat exchanger. 8. 1/8 INCH QUICK-CONNECT SOCKET INLET – This fitting is for the connection of the tubing that is returned from the user provided optional blanket. 9. MAINS POWER CORD – For connection to the mains power receptacle. 10 1/4 INCH QUICK-CONNECT DRAIN OUTLETS – The left outlet drains the cool reservoir. The right outlet drains the heat reservoir. Page 15 of 50

OPERATION MANUAL

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11 MAINS POWER SWITCH – Controls power to the entire unit and the remote control (if it is connected). Includes integrated circuit breaker for unit over-current protection. 12. GRILLE SCREWS – Allow easy access to clean the front of the condenser. 13. GRILLE – Provides air flow and protection to the condenser. 14. KEY PAD – Main control interface for all unit operations. 15. CONTROL BOARD (behind keypad) – Electronics package with precision dual microprocessor control and redundant water temperature safeties. 16. REMOTE CONTROL PORT – For connection of extension cables that lead to the Remote Control, Model 414CE. One or two 25 foot cables may be used for a maximum reach of 50 feet. 17. EQUIPOTENTIALITY GROUND – Provided to allow connection to the patient area common equipotential ground system.

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FIGURE 1-2, KEYPAD – 115V UNIT

FIGURE 1-3, KEYPAD – 115V REMOTE

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OPERATION MANUAL

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FIGURE 1-4, KEYPAD – 230V UNIT

FIGURE 1-5, KEYPAD – 230V REMOTE

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OPERATION MANUAL

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Reference Figures 1-2, 1-3, 1-4, & 1-5 Keypad Views 1. TEMPERATURE DISPLAY WINDOWS – Left side indicates heat reservoir temperature. Right side indicates cool reservoir temperature. This display is also used to display the set point temperature when the control is in the temp set mode. 2. HEATER STATUS LIGHTS – When illuminated these indicate that the controller is signaling the heaters to be on. These lights will not indicate a heater that is malfunctioning or inoperative due to a burned out heater element or wire break. 3. TEST INDICATORS BUTTON – When pressed this button will turn on all of the keypad indicators and test the audible alarm. 4. SILENCE ALARM BUTTON – When pressed this button will temporarily silence the alarm if it is not a Remove from Service (RFS) issue. 5. LOW TEMP LIMIT LIGHT – When illuminated the cool reservoir temperature is lower than should be allowed by the safety limits. 6. COOL LOW WATER LIGHT – When illuminated water needs to be added to the cool reservoir. Use only sterile water or water that has been passed through a filter of less than or equal to 0.22 microns. 7. COOL MODE BUTTON / LIGHT – When pressed this button along with the pump button will start the cool reservoir conditioning to obtain the indicated set point temperature. The light will be illuminated when the unit is in cool mode. 8. COOL DECREMENT BUTTON – When pressed this button will decrease the temperature set point indicated on the cool temperature display. 9. COOL TEMP SET BUTTON – When pressed this button will indicate the desired set point temperature of the cool reservoir on the cool temperature display. 10. COOL INCREMENT BUTTON – When pressed this button will increase the temperature set point indicated on the cool temperature display. 11. COOL INSTRUCTIONS – Abbreviated instructions on how to adjust and set the cool reservoir temperature. To completely understand the operation of the unit, consult appropriate sections in this manual. 12. PUMP BUTTON – When pressed this button will turn on the pump that circulates water in and out of the unit. This button must be pushed after the cool button is pushed if you want to cool the water in the cool reservoir or for unit preconditioning. The pump does not need to be on to allow the heaters to come on. The light will be illuminated when the controller is signaling the pump to operate. 13. HEAT INSTRUCTIONS – Abbreviated instructions on how to adjust and set the heat reservoir temperature. To completely understand the operation of the unit, consult appropriate sections in this manual. Page 19 of 50

OPERATION MANUAL

HEMOTHERM MODEL 400CE

14. HEAT DECREMENT BUTTON – When pressed this button will decrease the temperature set point indicated on the heat temperature display. 15. HEAT TEMP SET BUTTON – When pressed this button will indicate the desired set point temperature of the heat reservoir on the heat temperature display. 16. HEAT INCREMENT BUTTON – When pressed this button will increase the temperature set point indicated on the heat temperature display. 17. HEAT MODE BUTTON / LIGHT – When pressed, this button will put the unit in heat mode. It will start the heat reservoir conditioning to obtain the indicated set point temperature. Unlike the cool mode button this button will allow the heaters to turn on independent of the pump operation. The light will be illuminated when the unit is in heat mode. 18. POWER FAIL LIGHTS – When illuminated these lights will flash alternately to indicate that during operation, the unit has become unplugged or otherwise lost power and the power switch was in the on position. 19. HEAT LOW WATER LIGHT – When illuminated water needs to be added to the heat reservoir. Use only sterile water or water that has been passed through a filter of less than or equal to 0.22 microns. 20. HEAT HIGH TEMP LIMIT LIGHT – When illuminated the heat reservoir temperature is higher than should be allowed by the safety limits.

1.4

FUNCTION OF HEMOTHERM MODEL 400CE COOLER/HEATER

The HEMOTHERM Model 400CE Cooler/Heater is used to lower/raise the blood temperature and/or maintain blood temperature, as required, through conductive heat transfer of conditioned water. The conductive heat transfer is accomplished through a blood oxygenator/heat exchanger unit, along with the use of a blanket under the patient for the re-warming phase, if desired. The complete system usually comprises the HEMOTHERM Cooler/Heater unit and reusable or disposable blanket on the O. R. TableAdult, Pediatric, or Infant size. Available blankets are: the reusable PLASTIPAD® or GELLI-ROLL® blankets (polyurethane) and the disposable MAXI-THERM®, and MAXITHERM® LITE blankets. There is also an optional Remote Control, Model 414CE available that will allow the unit to be controlled from 25 or 50 feet away.

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