MIDAS REX® EHS® - Medtronicmanuals.medtronic.com/content/dam/emanuals/st/CONTRIB_087131.pdf2 Th e...

MIDAS REX® EHS®Electric High Speed System

Preventive Maintenance Manual

TABLE OF CONTENTS

Topic Page

Introduction and Defi ning Maintenance Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1Section 1: Preventive Maintenance/Service Schedule—12 Maintenance Intervals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1st Scheduled Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2nd Scheduled Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 3rd Scheduled Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 4th Scheduled Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 5th Scheduled Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 6th Scheduled Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 7th Scheduled Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 8th Scheduled Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 9th Scheduled Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 10th Scheduled Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 11th Scheduled Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 12th Scheduled Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15Section 2: Instructions for Completing Preventive Maintenance Steps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Scheduled Maintenance Intervals 1, 2, 3, 5, 6, 7, 9, 10, 11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Scheduled Maintenance Intervals 4, 8, 12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

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Introduction and Defi ning Maintenance LevelTh e scheduled maintenance information included in this Preventive Maintenance manual is provided as a guide to assist the customer in getting the greatest ownership value from their Midas Rex® Legend EHS® System, while helping to maximize its performance, safety, and reliability. Th is scheduled maintenance program is in addition to the required routine cleaning aft er each use. (Th e scheduled maintenance program is one of three programs, Limited Warranty and Extended Maintenance Agreement are the other two, intended to help you keep your system in good condition.)

Th is manual is divided into two sections.

Section 1 contains the preventive maintenance/service schedule. How much scheduled maintenance a Midas Rex Legend EHS System requires depends upon how oft en it is used and the conditions to which it is subjected, such as cleaning and sterilization. Th e demands on these systems can vary greatly from facility to facility. Twelve maintenance intervals have been defi ned. Th e time interval is determined by tool usage per year per motor and has been identifi ed as levels A, B, C, or D as determined from the following chart.

MaintenanceLevel

No. of Tools UsedPer Motor Per Year

Usage RateUses Per Month Per Motor

TimeInterval

A 150–200 12–16* 3 months

B 100–149 8–11 4 months

C 50–99 4–7 5 months

D <50 <4 6 months *A motor with usage rates greater than 16 uses per month should be returned for FactoryMaintenance at a 6-month interval.

WARNING: Failure to follow recommended service and preventive maintenance schedules for attachments may prevent tool from being secured properly.

Identifying and following the scheduled maintenance intervals for the Midas Rex Legend EHS System will assist in reducing the potential for unanticipated down time as a result of wear.

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Th e preventive maintenance schedule found in Section 1 details the specifi c checkpoints that are recommended and its associated interval.It also provides a convenient place to document your system’s maintenance history. If any of these checkpoints indicate wear or damage,DO NOT USE. Return the respective product to Medtronic Powered Surgical Solutions (MPSS) for service.

Th e maintenance checkpoints have been designed for a facility’s Biomedical Department or equivalent to perform. Th e following symbolsare used throughout this manual to indicate whether the maintenance step may be performed by the customer or must be returned to MPSS:

Customer Performed Maintenance

MPSS Performed Maintenance

Section 2 contains the detailed instructions for servicing the Midas Rex Legend EHS System in accordance with the Twelve Maintenance Intervals.

Your Midas Rex Legend EHS System has a limited warranty for a period of 1 year from the date of purchase for the Console, Motor, Cables, and Instrument Cases and Trays. Th e Attachments and Telescoping Tubes have a limited warranty period of 90 days from the date of purchase. Aft er the warranty period, any costs incurred for repair / refurbishing become the responsibility of the customer. Th is limited warranty does not include the cost associated with any of the factory level service requirements identifi ed in the Preventive Maintenance Schedule. Extended Maintenance Agreements are available.

For service, please call 817-788-6440 or toll free 1-800-335-9557 to schedule.For additional or replacement products, please call 817-788-6400 or toll free 1-800-433-7080 to order.

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Section 1

Preventive Maintenance/Service Schedule12 Maintenance Intervals

Customer Performed Maintenance

MPSS Performed Maintenance

Date of System Purchase:__________________ Maintenance Level:___________

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1st Scheduled Maintenance (See Section 2 for Details) Date Performed:_________________ By:________________

Level: A, 3 months B, 4 months C, 5 months D, 6 monthsConsole Attachments: Straight, Footed,

Perforator, Jacobs Chuck, TelescopingAttachments:

Angled, Contra, Metal CuttingMotors, Foot Control,

and Cables

Inspect the power cord and replace if damage to cord or connector is apparent.

Turn on the console with the foot control and motor connected. Th e display is clean and legible and reads:

EHS Forward >>70000 RPM

or Stylus Forward >>

60000 RPM Turn on the console with the foot control

and motor connected. Verify that the speed up and down buttons function from 10,000 to 75,000 in 1,000 rpm increments for EHS. For EHS Stylus from 3,000 to 9,500 the increments are 500 rpm and from 10,000 to 75,000 in 1,000 rpm increments.

Connect the motor with the locked attachment to the console with foot control attached. Run the motor and verify that the pedal smoothly controls the motor speed.

Connect the motor with the locked attachment to the console with the foot control attached. Press the Reverse button on the foot control several times and verify that the console display toggles between << REVERSE and FORWARD >> and the console beeps 3 times when the motor starts in reverse.

Etching and color ring remain legible and distinguishable.

Attachment tube and base are clean and free of debris.

Attachment has no loose components. (Straight/Footed) Attachment tip shows no

signs of wear or deformation. Footed attachment foot is not bent. Collet on Perforator or Jacobs Chuck Drive

Attachment shows no signs of wear or deformation.

Connect the attachment to the motor and run for 3 minutes. Motor case, attachment base and tip do not become uncomfortably hot to the touch.

Repeat for each straight, footed, telescoping, perforator, and Jacobs Chuck drive attachment in this system.

NOTE: Telescoping tubes are multi-use disposable. Discard if excessive heat or vibration is present.



Attachment has no loose components. Attachment tip shows no signs of wear or

deformation. Connect the angled or metal cutting

attachment to the motor and run for 3 minutes. Motor case, attachment base, knuckle and tip do not become uncomfortably hot to the touch.

Head to tube joint for the contra-angled attachment is stable, i.e., no play.

Connect the contra-angled attachment to the motor and run for 1 minute at 62,000 rpm. Motor case, contra-angled attachment base, knuckle and tip do not become uncomfortably hot to the touch

Repeat for each angled, contra-angled or metal cutting attachment in this system.

Th e motor and foot control markings are legible.

Connectors on motor, foot control and cable show no signs of debris, bent or missing pins.

Th e cable strain relief boots show no signs of cracking or separation from the cable jacket.

Cables do not have any nicks, cracks, holes, tears, kinks, or any other signs of wear.

Connect an attachment to the motor and verify a tactile and audible click when the attachment is locked on the motor.


Connect the motor with the locked attachment to the console with foot control attached. Run the EHS motor for 3 minutes at 70,000 rpm or run the Stylus motor for 5 minutes at 60,000 rpm. Motor case, attachment base and tip do not become uncomfortably hot to the touch.


When the foot pedal is released the motor stops and does not continue to run. If the motor continues to run when the foot pedal is released, DO NOT use and return system to MPSS for service.

If any damage, excessive rust/corrosion, or wear is observed with the product, or if action is required beyond cleaning, DO NOT use the product and return to MPSS for service.

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2nd Scheduled Maintenance (See Section 2 for Details) Date Performed:_________________ By:_________________




and Cables



































6

3rd Scheduled Maintenance (See Section 2 for Details) Date Performed:_________________ By:_________________




and Cables



































7

4th Scheduled Maintenance (See Section 2 for Details) Date Performed:_________________ By:_________________




and Cables

Requires factory level service.

Please call 817-788-6440 or toll free 1-800-335-9557 to schedule.

Sent out on _______________

Returned on ______________



Sent out on _______________

Returned on ______________



Please call 817-788-6440 or toll free1-800-335-9557 to schedule.

Sent out on _______________

Returned on ______________

Contra-Angled Attachment — Replace

Please call 817-788-6488 or toll free1-800-433-7080 to order.

Ordered on __________________



Sent out on _______________

Returned on ______________


8





and Cables



































9





and Cables



































10





and Cables



































11





and Cables



Sent out on _______________

Returned on ______________



Sent out on _______________

Returned on ______________




Sent out on _______________

Returned on ______________



Ordered on __________________



Sent out on _______________

Returned on ______________


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and Cables



































13





and Cables



































14





and Cables



































15





and Cables



Sent out on _______________

Returned on ______________



Sent out on _______________

Returned on ______________




Sent out on _______________

Returned on ______________



Ordered on __________________



Sent out on _______________

Returned on ______________


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Section 2 Instructions for Completing Preventive Maintenance Steps

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Scheduled Maintenance Intervals 1, 2, 3, 5, 6, 7, 9, 10, 11Console, Motor, Foot Control, and Cables

1. Visually inspect the power cord to verify that it does not have any damage to the insulation or to the blade of the connector and that there is no debris evident. Replace if damage is apparent.

2. Connect the foot control and motor to the console with their respective cables. Plug the power cord into the console then turn the console on. Verify that the console beeps while powering up, that the display comes up and is readable and clean. Th e display should read:

EHS FORWARD >>70000 RPM or

STYLUS FORWARD >>60000 RPM

3. If the display shows this error, then the foot control is not properly connected or the foot control or cable connectors may be dirty or the foot control or cable may need servicing.

CHECK PEDAL CONNECTION

4. If the console is working as in step 2, push the Up and Down buttons to Verify that the speed up and down buttons function from 10,000 to 75,000 in 1,000 rpm increments for EHS. For EHS Stylus from 3,000 to 9,500 the increments are 500 rpm and from 10,000 to 75,000 in 1,000 rpm increments.

5. Connect an attachment to the motor and verify a tactile and audible click when the attachment is locked on the motor.6. Run the motor and verify that the pedal smoothly controls the motor speed.7. If the display shows any errors, then the motor is not properly connected or the motor cable may need servicing or the connectors of the

motor or motor cable are dirty, or the motor or console may need servicing.8. Press the Reverse button on the foot control several times and verify that the console display toggles between << REVERSE and

FORWARD >>. Leave the console in the << REVERSE mode. Press the foot pedal to start the motor in reverse and listen for 3 beeps when the motor starts in reverse.

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9. Run motor for 3 minutes at 70,000 rpm for EHS or 5 minutes at 60,000 rpm for EHS Stylus. Verify that the motor case, attachment base and tip do not become uncomfortably hot to the touch.

10. Verify that when the foot pedal is released the motor stops and does not continue to run. If the motor continues to run when the foot pedal is released, DO NOT use and return system to MPSS for service.

Attachments: Straight, Footed, Perforator, Jacobs Chuck, and TelescopingTelescoping tubes are multi-use disposable and do not receive scheduled maintenance.1. Visually inspect the etching and color ring to ensure it remains legible and the color is distinguishable.2. Visually inspect the attachment tube and base for any signs of debris or damage.3. Visually and physically inspect (pulling and twisting by hand) the attachment for any loose or loosening components. If any components are

loose, DO NOT use and return the attachment to MPSS for service. 4. (Straight/Footed) Visually inspect the attachment tip for any signs of wear. Th e tip should remain round with no evidence of deformation.5. (Footed) Visually inspect the foot. Th e foot and/or leg of the attachment should not be bent, or damaged.6. (Perforator and Jacobs Chuck) Visually inspect the perforator collet for any signs of wear or deformation.7. Heat Check

• For telescoping attachment, insert an appropriate telescoping tube into the base.• Attach and lock the attachment onto the motor. Check to ensure that there is a tactile and an audible click when the attachment is

locked on the motor.• Connect the motor to a console with foot control attached. • Turn console on. • Run the motor for 3 minutes.• Feel the motor case, the attachment base, and the attachment tip (except Telescoping) to ensure they are not uncomfortably hot to

the touch.8. Repeat steps 1-7 for each straight/footed/telescoping/perforator/Jacobs Chuck drive attachment in this system.

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Attachments: Angled, Contra and Metal Cutting1. Visually inspect the etching and color ring to ensure it remains legible and the color is distinguishable.2. Visually inspect the attachment tube and base for any signs of debris or damage.3. Visually and physically inspect (pulling and twisting by hand) the attachment for any loose or loosening components. If any components

are loose, DO NOT use and return the attachment to MPSS for service. 4. Visually inspect the attachment tip for any signs of wear. Th e tip should remain round with no evidence of deformation.5. Heat Check Angled and Metal Cutting Attachment

• Attach and lock the attachment onto the motor. Check to ensure that there is a tactile and an audible click when the attachment is locked on the motor.

• Connect the motor to a console with foot control attached.• Turn console on.• Run the motor for 3 minutes. • Feel the motor case, the attachment base, the knuckle (angled area for angled attachment only), and the attachment tip to ensure they are not

uncomfortably hot to the touch.6. (Contra) Visually inspect the head to tube joint for the contra-angled attachment for stability, i.e., there is no loosening of this joint.7. Heat Check Contra-Angled Attachment

• Attach and lock the contra-angled attachment onto the motor. Check to ensure that there is a tactile and an audible click when the attachment is locked on the motor.

• Connect the motor to a console with foot control attached. • Turn console on. • Run the motor for 1 minute. • Set speed to 62,000 rpm using the speed down button for EHS or the speed up button for EHS Stylus.• Feel the motor case, the attachment base, the knuckle (contra-angled area), and the attachment tip to ensure they are not uncomfortably hot

to the touch.8. Repeat steps 1-7 for each angled/contra-angled/metal cutting attachment that is part of this system.

21

Scheduled Maintenance Intervals 4, 8, 12Motor, Attachments: Straight, Footed, Perforator, Jacobs Chuck, Telescoping, Angled and Metal CuttingAt these maintenance intervals it is important that the units be returned to MPSS for factory level inspection and service. Please call 817-788-6440 or toll free 1-800-335-9557 to schedule. As a reminder, the costs associated with any of the factory level ser-vice requirements are not included in the limited warranty. Extended Maintenance Agreements are available.Telescoping tubes are multi-use disposable and do not receive scheduled maintenance.

Contra-Angled AttachmentTh e Contra-angled attachment does not contain user or factory serviceable components and must be replaced at the 4th, 8th and 12th maintenance intervals. Please call 817-788-6400 or toll free 1-800-433-7080 to order.

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Notes

Manufactured by:Medtronic Powered Surgical Solutions4620 North Beach StreetFort Worth, TX 76137 USATelephone: 817-788-6400Toll-free: 1-800-643-2773Fax: 817-788-6401www.medtronic.com

Orders:Medtronic Powered Surgical SolutionsTelephone: 817-788-6400Toll-free: 1-800-433-7080Fax: 817-788-6489

Repairs:Medtronic Powered Surgical SolutionsTelephone: 817-788-6440Toll-free: 1-800-335-9557Fax: 817-788-6441

EC Authorized Representative:Medtronic B.V.Earl Bakkenstraat 106422 PJ HeerlenTh e Netherlands

Patent Pending

Pana is a trademark ofNSK America Corporation

© 2014 Medtronic, Inc.All rights reserved.

Printed in USA

175011EN.RA

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