Ambulo 2400 User Manual Rev F1

Copyright © 2013 by Mortara Instrument, Inc. 7865 N. 86th Street Milwaukee, Wisconsin 53224

This document contains confidential information that belongs to Mortara Instrument, Inc. No part of this document may be transmitted, reproduced, used, or disclosed outside of the receiving organization without the express written consent of Mortara Instrument, Inc. Mortara is a registered trademark of Mortara Instrument, Inc. Ambulo, and EasyWear are trademarks of Mortara Instrument, Inc. Microsoft and Windows are registered trademarks of Microsoft Corporation. Adobe and Acrobat are trademarks of Adobe Systems Inc. Orbit and SunTech Medical are trademarks or registered trademarks of SunTech Medical. 2.60

TECHNICAL SUPPORT AND SERVICE

Headquarters Mortara Instrument, Inc. 7865 North 86th Street Milwaukee, WI 53224 U.S.A. Tel: 414.354.1600 Tel: 800.231.7437 Fax: 414.354.4760 Internet: http://www.mortara.com

European Union Representative Mortara Rangoni Europe, Srl (European Headquarters) Via Cimarosa 103/105 40033 Casalecchio di Reno (BO) Italy Tel: +39.051.298.7811 Fax: +39.051.613.3582

Service/Technical Support Group Mortara Instrument, Inc. 7865 North 86th Street Milwaukee, WI 53224 U.S.A. Tel: 414.354.1600 Service: 888.MORTARA (888.667.8272) Fax: 414.354.4760 E-mail: [email protected] 24-hour Technical Support Same-day Shipment of Replacement Parts Biomedical Training Classes Extended Warranties/Service Contracts

Sales Support/ Supplies & Accessories Mortara Instrument, Inc. 7865 North 86th Street Milwaukee, WI 53224 U.S.A. Tel: 414.354.1600 Fax: 414.354.4760 E-mail: [email protected] Mortara Instrument Germany Bonifaciusring 15 45309 Essen Germany Tel: +49.201.18 55 69 70 Fax: +49.201.18 55 69 77 Mortara Instrument Netherlands Postbus 324 5680 AH Best Industrieweg 160b 5683 CG Best Netherlands Tel: +31.499.377310 Fax: +31.499.377908 Mortara Instrument Australia PO Box 7568 Baulkham Hills NSW 2153 Unit 28, 9 Hoyle Avenue Castle Hill NSW 2154 Australia Tel: +61 2 8070 9303 Fax: +61 2 9899 9478 Mortara Dolby UK Ltd. Units 11 & 12, Scion House Stirling University Innovation Park Stirling FK9 4NF Scotland Tel: +44.1786.444980 Fax: +44.1786.446630

i

NOTICES Manufacturer’s Responsibility Mortara Instrument, Inc. is responsible for the effects on safety and performance only if: •

Assembly operations, extensions, readjustments, modifications, or repairs are carried out only by persons authorized by Mortara Instrument, Inc.

•

The device is used in accordance with the instructions for use.

Responsibility of the Customer The user of this device is responsible for ensuring the implementation of a satisfactory maintenance schedule. Failure to do so may cause undue failure and possible health hazards. Equipment Identification Mortara Instrument, Inc. equipment is identified by a serial and reference number on the back of the device. Care should be taken so that these numbers are not defaced. Copyright and Trademark Notices This document contains information that is protected by copyright. All rights are reserved. No part of this document may be photocopied, reproduced, or translated to another language without prior written consent of Mortara Instrument, Inc. Other Important Information The information in this document is subject to change without notice. Mortara Instrument, Inc. makes no warranty of any kind with regard to this material including, but not limited to, implied warranties of merchantability and fitness for a particular purpose. Mortara Instrument, Inc. assumes no responsibility for any errors or omissions that may appear in this document. Mortara Instrument, Inc. makes no commitment to update or to keep current the information contained in this document.

ii

WARRANTY INFORMATION Your Mortara Warranty MORTARA INSTRUMENT, INC. (hereafter referred to as “Mortara”) warrants that components within Mortara products (hereafter referred to as “Product/s”) will be free from defects in workmanship and materials for the number of years specified on documentation accompanying the product, or previously agreed to by the purchaser and Mortara, or if not otherwise noted, for a period of twenty-four (24) months from the date of shipment. Consumable, disposable or single use products such as, but not limited to, PAPER or ELECTRODES are warranted to be free from defects in workmanship and materials for a period of 90 days from the date of shipment or the date of first use, whichever is sooner. Reusable product such as, but not limited to, BATTERIES, BLOOD PRESSURE CUFFS, BLOOD PRESSURE HOSES, TRANSDUCER CABLES, Y-CABLES, PATIENT CABLES, LEAD WIRES, MAGNETIC STORAGE MEDIUMS, CARRY CASES or MOUNTS, are warranted to be free from defects in workmanship and materials for a period of 90 days. This warranty does not apply to damage to the Product/s caused by any or all of the following circumstances or conditions: a)

Freight damage;

b) Parts and/or accessories of the Product/s not obtained from or approved by Mortara; c)

Misapplication, misuse, abuse, and/or failure to follow the Product/s instruction sheets and/or information guides;

d) Accident; a disaster affecting the Product/s; e)

Alterations and/or modifications to the Product/s not authorized by Mortara;

f)

Other events outside of Mortara’s reasonable control or not arising under normal operating conditions.

THE REMEDY UNDER THIS WARRANTY IS LIMITED TO THE REPAIR OR REPLACEMENT WITHOUT CHARGE FOR LABOR OR MATERIALS, OR ANY PRODUCT/S FOUND UPON EXAMINATION BY MORTARA TO HAVE BEEN DEFECTIVE. This remedy shall be conditioned upon receipt of notice by Mortara of any alleged defects promptly after discovery thereof within the warranty period. Mortara’s obligations under the foregoing warranty will further be conditioned upon the assumption by the purchaser of the Product/s (i) of all carrier charges with respect to any Product/s returned to Mortara’s principal place or any other place as specifically designated by Mortara or an authorized distributor or representative of Mortara, and (ii) all risk of loss in transit. It is expressly agreed that the liability of Mortara is limited and that Mortara does not function as an insurer. A purchaser of a Product/s, by its acceptance and purchase thereof, acknowledges and agrees that Mortara is not liable for loss, harm, or damage due directly or indirectly to an occurrence or consequence there from relating to the Product/s. If Mortara should be found liable to anyone under any theory (except the expressed warranty set forth herein) for loss, harm, or damage, the liability of Mortara shall be limited to the lesser of the actual loss, harm, or damage, or the original purchase price of the Product/s when sold.

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USER SAFETY INFORMATION

Warning:

Means there is the possibility of personal injury to you or others.

Caution:

Means there is the possibility of damage to the device.

Note:

Provides information to further assist in the use of the device.

Warning(s) •

This manual gives important information about the use and safety of this device. Deviating from operating procedures, misuse or misapplication of the device, or ignoring specifications and recommendations could result in increased risk of harm to users, patients and bystanders, or damage to the device.

•

Device captures and presents data reflecting a patient’s physiological condition that when reviewed by a trained physician or clinician can be useful in determining a diagnosis; however, the data should not be used as a sole means for determining a patient’s diagnosis.

•

Users are expected to be licensed clinical professionals knowledgeable about medical procedures and patient care, and adequately trained in the use of this device. Before attempting to use this device for clinical applications, the operator must read and understand the contents of the user manual and other accompanying documents. Inadequate knowledge or training could result in increased risk of harm to users, patients and bystanders, or damage to the device. Contact Mortara Technical Service for additional training options.

●

To avoid the potential for spread of disease or infection, blood pressure cuffs should be cleaned after each patient use.

•

This device is intended for use with ambulatory patients. This device is not intended for use with unconscious or sedated patients.

Caution(s) •

Do not attempt to clean the device, patient cuffs or tubing by submersing into a liquid, autoclaving, or steam cleaning as this may damage equipment or reduce its usable life. Wipe the exterior surfaces with a warm water and mild detergent solution and then dry with a clean cloth. Use of unspecified cleaning/disinfecting agents, failure to follow recommended procedures, or contact with unspecified materials could result in increased risk of harm to users, patients and bystanders, or damage to the device.

•

No user-serviceable parts inside. Screw removal by qualified service personnel only. Damaged or suspected inoperative equipment must be immediately removed from use and must be checked/repaired by qualified service personnel prior to continued use.

•

No calibration or special equipments are needed for the proper operation or maintenance of the device.

●

When necessary, dispose of the device, its components and accessories (e.g., batteries, cables, electrodes), and/or packing materials in accordance with local regulations.

v

USER SAFETY INFORMATION

•

Do not connect the device to any unauthorized devices or use any third-party accessories. This may cause inaccurate measurements or harm the patient.

•

Do not operate the device in conjunction with or in close proximity to other devices such as high frequency surgical instruments, defibrillators, imaging systems, or other diagnostic or therapeutic devices. Simultaneous operation may damage the device or lead to erroneous results.

•

It is recommended to keep proper functioning backup items such as a spare patient cuff, extension hose, interface cable, batteries and other equipment on hand to prevent delayed treatment due to an inoperable device.

•

While the Hypertension Diagnostics Suite software can operate in a multi-user networked-environment and support hundreds of patient records, its performance may degrade with increasing database file size. In such situations or perhaps on a regular basis, it is recommended that patient records be archived and a new patient database be created. Refer to the Software Operation section of this User Manual for further information on how to archive existing and create new databases.

Note(s) •

There is no known safety hazard if other equipment, such as pacemakers or other stimulators, is used simultaneously with the device; however, disturbance to the signal may occur.

•

As defined by IEC 60601-1, the device is classified as follows: • Class I equipment or internally powered. • Type BF and defibrillation-proof applied part. • Ordinary equipment. • Equipment not suitable for use in the presence of flammable or explosive environments including anesthetic mixtures. • Continuous operation.

•

This device is intended to be used in an ambulatory setting as prescribed by a licensed physician, and should be used and stored according to the environmental conditions specified below: Operating temperature: Operating humidity: Atmospheric pressure:

+5° to +40°C (+41° to +104°F) 30% to 95% RH, non-condensing 1033 hPa to 550 hPa

Storage temperature: Storage humidity: Atmospheric pressure:

-20° to +55°C (-4° to +131°F) 15% to 95% RH, non-condensing 1059 hPa to 550 hPa

CAUTION: The device may not provide accurate results or may be damaged if operated or stored beyond the specifications. •

The device is CSA classified: WITH RESPECT TO ELECTRIC SHOCK, FIRE AND MECHANICAL HAZARDS ONLY IN ACCORDANCE WITH UL60601-1, IEC60601-1, CAN/CSA C22.2 No. 601.1, IEC 60601-1-1, CAN/CSA C22.2 No. 606011-1-02, IEC60601-2-30 AND CAN/CSA C22.2 No. 601.2.30-99

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EQUIPMENT SYMBOLS AND MARKINGS Symbol Delineation Attention, consult accompanying documents.

IPX1

Indicates device has been tested for safety from vertically dripping water; specifically, it indicates DRIP PROOF, a higher than ordinary level of protection from drips, leaks, and spills.

Defibrillator-proof type BF applied part.

Tested for safety by the Canadian Standards Association according to applicable U.S. and Canadian standards and requirements.

Do not dispose as unsorted municipal waste. Per European Union Directive 2002/96, requires separate handling for waste disposal according to national requirements.

Indicates compliance to applicable European Union directives.

Consult accompanying documents

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EQUIPMENT SYMBOLS AND MARKINGS

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GENERAL CARE Precautions • • • •

Remove the batteries from the device before inspecting or cleaning. Do not get the device wet or immerse in water. Do not drop the device or subject it to shock and/or vibration. Do not use organic solvents, ammonia-based solutions, or abrasive cleaning agents which may damage equipment surfaces.

Inspection Inspect your equipment prior to operation. • •

Check the device for any visible damage. Inspect cuffs, bladders, and tubes for any visible damage.

If you notice anything that requires repair, do not use the equipment. Contact Mortara Technical Service for any necessary repairs.

Cleaning the Cuffs Orbit Cuffs 1.

Orbit cuffs may be cleaned with a mild disinfectant spray. The outer shell of the Orbit cuffs can be machine washed using warm water and soft detergent. Line dry.

Other Cuffs including EasyWear™ Cuffs 1. 2. 3.

4. 5.

6. 7. 8.

Prior to washing, remove any internal cuff bladders and engage the Velcro hook and loop fasteners to prevent lint from collecting in the hooks. For general cleaning of cuffs, use a soft, lint-free cloth lightly moistened with a mild soap and water solution. Be careful not to get liquid inside of the tubes. Allow to air dry. For excessive perspiration marks or odor, the exterior of the cuff can be hand-washed under running water with a mild detergent. Do not allow water to enter the bladder including with single-piece cuffs without an internal bladder. Suntech Orbit cuffs may be machine washed by removing the bladder and washing the shell using warm cycle (50-140° F or 10-60° C). Allow to air dry. If required, use of non-chlorine bleach is recommended. Chlorine bleach solutions will shorten the service life of the cuff. Sterilize the cuff and bladder using commercially available disinfectants. Note that some disinfectants may cause skin irritation and dark colored disinfectants may stain the cuff. Test a single cuff to ensure that no damage or staining will occur. Follow the manufacturer’s instructions and thoroughly rinse each component to remove any residual disinfectants. Allow the components to air dry and then insert the bladder. Cuffs can be sterilized with Ethylene Oxide. Do not autoclave or iron the cuff as the hook and loop fasteners will melt at temperatures above 325°F (162°C). Use caution with excess liquid. Do not use excessive drying techniques such as forced heat.

WARNING: Prevent liquid from penetrating the device and do not attempt to clean/disinfect the device or cuff by submerging into a liquid, autoclaving, or steam cleaning.

ix

GENERAL CARE

Cleaning the Device Clean the exterior surface of the device with a damp, soft, lint-free cloth using a solution of mild detergent diluted in water. After cleaning thoroughly dry off the device with a clean, soft cloth or paper towel.

Cautions Improper cleaning products and processes can damage the device and void the warranty. Use care and proper procedure whenever cleaning or maintaining the device.

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ELECTROMAGNETIC COMPATIBILITY (EMC) Electromagnetic compatibility with surrounding devices should be assessed when using the device. An electronic device can either generate or receive electromagnetic interference. Testing for electromagnetic compatibility (EMC) has been performed on the device according to the international standard for EMC for medical devices (IEC 60601-1-2). This IEC standard has been adopted in Europe as the European Norm (EN 60601-1-2). The device should not be used adjacent to, or stacked on top of other equipment. If the device must be used adjacent to or stacked on top of other equipment, verify that the device operates in an acceptable manner in the configuration in which it will be used. Fixed, portable, and mobile radio frequency communications equipment can affect the performance of medical equipment. See Table X-4 for recommended separation distances between the radio equipment and the device. Operation of the equipment beyond its specified ranges, or beyond normal physiological conditions of human subjects, may cause inaccurate results. The use of accessories, transducers, and cables other than those specified by Mortara Instrument may result in increased emissions or decreased immunity of the equipment. Table X-1 Guidance and Manufacturer’s Declaration: Electromagnetic Emissions The equipment is intended for use in the electromagnetic environment specified in the table below. The customer or the user of the equipment should ensure that it is used in such an environment. Emissions Test

Compliance

Electromagnetic Environment: Guidance

RF Emissions CISPR 11

Group 1

The equipment uses RF energy only for its internal function. Therefore, its RF emissions are very low and not likely to cause any interference in nearby electronic equipment.

RF Emissions CISPR 11

Class B

Harmonic Emissions IEC 61000-3-2

Not Applicable

The equipment is suitable for use in all establishments, including domestic and those directly connected to the public low-voltage power supply network that supplies buildings used for domestic purposes.

Voltage Fluctuations/ Flicker Emissions IEC 61000-3-3

Not Applicable

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ELECTROMAGNETIC COMPATIBILITY (EMC)

Table X-2 Guidance and Manufacturer’s Declaration: Electromagnetic Immunity The equipment is intended for use in the electromagnetic environment specified in the table below. The customer or the user of the equipment should ensure that it is used in such an environment. Emissions Test

Compliance

Compliance Level

Electromagnetic Environment: Guidance

Electrostatic discharge (ESD) IEC 61000-4-2

+/- 6 kV contact +/- 8 kV air

+/- 6 kV contact +/- 8 kV air

Floors should be wood, concrete, or ceramic tile. If floors are covered with synthetic material, the relative humidity should be at least 30%.

Electrical fast transient/burst IEC 61000-4-4

+/- 2 kV for power supply lines +/- 1 kV for input/output lines

Surge IEC 61000-4-5

+/- 1 kV differential mode +/- 2 kV common mode

Voltage dips, short interruptions, and voltage variations on power supply input lines IEC 61000-4-11

<5% UT (>95% dip in UT) for 0.5 cycle 40% UT (60% dip in UT) for 5 cycles 70% UT (30% dip in UT) for 25 cycles <5% UT (>95% dip in UT) for 5 sec

Power frequency (50/60 Hz) magnetic field IEC 61000-4-8

3 A/m

Not Applicable

Mains power quality should be that of a typical commercial or hospital environment.

Not Applicable

Mains power quality should be that of a typical commercial or hospital environment.

Not Applicable

3 A/m

Mains power quality should be that of a typical commercial or hospital environment. If the user of the equipment requires continued operation during power mains interruptions, it is recommended that the equipment be powered from an uninterruptible power supply or a battery.

Power frequency magnetic fields should be at levels characteristic of a typical location in a typical commercial or hospital environment.

NOTE: UT is the AC Mains voltage prior to application of the test level.

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ELECTROMAGNETIC COMPATIBILITY (EMC)

Table X-3 Guidance and Manufacturer’s Declaration: Electromagnetic Immunity The equipment is intended for use in the electromagnetic environment specified in the table below. The customer or the user of the equipment should ensure that it is used in such an environment. Emissions Test

IEC 60601 Test Level

Compliance Level

Electromagnetic Environment: Guidance Portable and mobile RF communications equipment should be used no closer to any part of the equipment, including cables, than the recommended separation distance calculated from the equation applicable to the frequency of the transmitter.

Recommended separation distance Conducted RF IEC 61000-4-6

3 Vrms 150 kHz to 80 MHz

3 Vrms 150 kHz to 80 MHz

Radiated RF IEC 61000-4-3

3 V/m 80 MHz to 2.5 GHz

3 V/m 80 MHz to 2.5 GHz

d = 1.17 P

d = 1.17 P

80 MHz to 800 MHz

d = 2.34 P 800 MHz to 2.5 GHz Where P is the maximum output power rating of the transmitter in watts (W) according to the transmitter manufacturer and d is the recommended separation distance in meters (m). Field strengths from fixed RF transmitters, as determined by an electromagnetic site surveya, should be less than the compliance level in each frequency rangeb. Interference may occur in the vicinity of equipment marked with the following symbol:

a. Field strengths from fixed transmitters, such as base stations for radio (cellular/cordless) telephones and land mobile radios, amateur radios, AM and FM radio broadcast, and TV broadcast cannot be predicted theoretically with accuracy. To assess the electromagnetic environment due to fixed RF transmitters, an electromagnetic site survey should be considered. If the measured field strength in the location in which the equipment is used exceeds the applicable RF compliance level above, the equipment should be observed to verify normal operation. If abnormal performance is observed, additional measures may be necessary, such as reorienting or relocating the equipment. b. Over the frequency range 150 kHz to 80 MHz, field strengths should be less than [3] V/m.

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ELECTROMAGNETIC COMPATIBILITY (EMC)

Table X-4 Recommended Separation Distances Between Portable and Mobile RF Communications Equipment and the Equipment The equipment is intended for use in the electromagnetic environment in which radiated RF disturbances are controlled. The customer or the user of the equipment can help to prevent electromagnetic interference by maintaining a minimum distance between portable and mobile RF communications equipment (transmitters) and the equipment as recommended in the table below, according to the maximum output power of the communications equipment. Rated Maximum Output Power of Transmitter W

Separation Distance According to Frequency of Transmitter (m) 150 KHz to 80 MHz

80 MHz to 800 MHz

800 MHz to 2.5 GHz

d = 1.17 P

d = 1.17 P

d = 2.34 P

0.01

0.12 m

0.12 m

0.23 m

0.1

0.37 m

0.37 m

0.74 m

1

1.17 m

1.17 m

2.33 m

10

3.69 m

3.69 m

7.38 m

100

11.67 m

11.67 m

23.33 m

For transmitters rated at a maximum output power not listed above, the recommended separation distance d in meters (m) can be estimated using the equation applicable to the frequency of the transmitter, where P is the maximum output power rating of the transmitter in watts (W) according to the transmitter manufacturer. NOTE 1: At 80 MHz and 800 MHz, the separation distance for the higher frequency range applies. NOTE 2: These guidelines may not apply in all situations. Electromagnetic propagation is affected by the absorption and reflection from structures, objects, and people. NOTE 3: If the equipment exceeds the applicable RF compliance level above, the equipment should be observed to verify normal operation. If abnormal performance is observed, additional measures may be necessary, such as reorienting or relocating the equipment.

xiv

TABLE OF CONTENTS INTRODUCTION SECTION 1 Manual Purpose ... 1 Audience ... 1 Intended Use ... 1 Indications for Use ... 1 System Description ... 2 Figure 1-1, Device Overview ... 3 Specifications ... 6 Accessories ... 7

EQUIPMENT PREPARATION SECTION 2 Air Socket ... 9 Inserting/Replacing Batteries ... 9 USB Interface ... 10

SOFTWARE INSTALLATION SECTION 3 Software Requirements... 11 Installing the Software ... 11 Installing USB Drivers ... 12

SOFTWARE OPERATION SECTION 4 Starting the Program ... 13 Software Configuration Menu ... 14 New Patients ... 14 Browse Patients ... 15 Configuring Device ... 16 Getting Data Measurements ... 20 Additional Operations ... 21

VIEWING DATA MEASUREMENTS SECTION 5 Table View ... 25 Graphical View ... 27 Actigraphy View ... 28 Histogram View... 29 Statistics View ... 29 Comparison View ... 30 Report View ... 30

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TABLE OF CONTENTS

PERFORMING AN ABPM PROCEDURE SECTION 6 Performing an ABPM Procedure ... 34 Downloading and Reviewing Data Measurements... 38

TROUBLESHOOTING AND MAINTENANCE APPENDIX A Troubleshooting... 39 Maintenance ... 40 Calibration of the ABPM Device ... 40

ERROR AND DIAGNOSTIC CODES APPENDIX B Error and Diagnostic Codes... 43

PATIENT INSTRUCTION AND DIARY APPENDIX C Patient Instruction ... 47 Patient Diary ... 48

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INTRODUCTION SECTION 1

Manual Purpose This manual is intended to provide the user with information about: • • • • • • • •

Using and understanding the Ambulo™ 2400, its LCD panel, and program icons. Preparing the Ambulo 2400 for use. (Section 2) Installing the software. (Section 3) Starting the program. (Section 4) Viewing data measurements. (Section 5) Performing an ABPM procedure. (Section 6) Troubleshooting and maintenance. (Appendix A) Error and diagnostic codes. (Appendix B) NOTE: This manual may contain screen shots. Any screen shots are provided for reference only and are not intended to convey actual operating techniques. Consult the actual screen in the host language for specific wording.

Audience This manual is written for clinical professionals. They are expected to have working knowledge of medical procedures and terminology as required for monitoring patients.

Intended Use The Ambulo 2400 is intended to be a compact, non-invasive Ambulatory Blood Pressure Monitoring (ABPM) system. ABPM technology involves the use of an automatic, non-invasive device to measure blood pressure over an extended period of time – typically 24 hours. The ABPM procedure is an essential tool for physicians, clinical researchers, and other healthcare professionals to analyze a patient’s blood pressure as it relates to his/her circadian rhythm. This process offers insight into diagnostic factors as they relate to the spectrum of activity within everyday life.

Indications for Use •

The device is indicated for use to measure systolic and diastolic blood pressure and pulse rates of adults who are eighteen (18) years and older using the oscillometric method on a cuffed arm.

1

SECTION 1

System Description The Ambulo 2400 is a lightweight, quiet, and comfortable ABPM system that does not interfere with daily activities. The device is easily configured and individually-fitted for each patient by a physician or nurse. The 24-hour measurements for systolic and diastolic blood pressure, the mean arterial pressure, and the pulse rate are automatically obtained without medical supervision, and later downloaded to a computer for analysis and interpretation. The Ambulo 2400 system includes a number of components that are essential to carrying out successful ABPM procedures on a wide variety of patients. While exact configurations will vary depending upon what options are chosen and where the system is purchased from, it will generally include the following: • • • • • •

2

Carry pouch with belt clip and shoulder strap Adult cuffs: large, regular, and small Extension hose USB cable (2) rechargeable NiMH batteries CD-ROM Software

SECTION 1

Device Overview Figure 1-1

A. B. C. D. E.

Air socket LCD panel Start/Stop button USB interface Battery door

3