Otto Bock Michelangelo Hand 8E500 User manual

Instructions for use (qualified personnel) ........................................................................... 3
Michelangelo Hand 8E500

1 2
2

1 Foreword English
INFORMATION
Date of last update: 2022-02-14
►Please read this document carefully before using the product and observe the safety
notices.
►Instruct the user in the safe use of the product.
►Please contact the manufacturer if you have questions about the product or in case of prob
lems.
►Report each serious incident related to the product to the manufacturer and to the relevant
authority in your country. This is particularly important when there is a decline in the health
state.
►Please keep this document for your records.
The 8E500=R/L Michelangelo Hand is referred to as the product / Axon-Bus terminal device /
Michelangelo Hand below.
These instructions for use provide you with important information on the use, adaptation and
handling of the product.
According to the manufacturer (Otto Bock Healthcare Products GmbH), the patient is the operat
or of the product according to the IEC 60601-1:2005/A1:2012 standard.
Only put the product into use in accordance with the information contained in the accompanying
documents supplied.
2 Product description
2.1 Function
The Michelangelo Hand is a myoelectrically controlled gripping component in the modular
Ottobock Axon-Bus prosthetic system. The complex gripping kinematics combined with the ana
tomical appearance and low weight support the patient in his or her daily activities, thereby
providing the highest rehabilitation value.
The Michelangelo Hand is equipped with two drives to achieve a natural motion pattern. The main
drive is responsible for the gripping movements and gripping force. The thumb drive facilitates
the two gripping modes 'Opposition Mode' and 'Lateral Mode'. Actively driven components are
thus the thumb, index finger and middle finger. The ring finger and little finger passively follow the
movements.
Gripping modes of the Michelangelo Hand
The following gripping options are possible:
Neutral Position
Natural, physiological appearance in the rest position.
Lateral Power Grip
The thumb moves laterally to the index finger; this laterally fixates medium-
sized objects when the thumb is in the half-open position.
3

4
Lateral Pinch
The thumb moves laterally to the index finger; this laterally fixates flat objects
when the thumb is in the closed position.
Open Palm
In the Open Palm position the thumb is positioned far to the outside; this
achieves a flat hand position with a completely opened thumb position.
Opposition Power Grip
The opening width makes it possible to hold cylindrical objects with large
diameters and with an open thumb position.
Tripod Pinch
Together with the index finger and the middle finger, the thumb forms a
three-point support; small objects can then be securely fixated with the
thumb in closed position.
Finger Abduction/Adduction
By spreading the fingers, a flat, thin object (<3mm / <0.12inch) can be
held between the fingertips when closing the hand.
2.1.1 Wrist unit
Starting at the neutral position, the joint can be flexed by approximately 75° in 4 locking positions;
extension is 45° with 3 locking positions. Flexion and extension are performed passively.
A flexible and a rigid mode are available according to the application situation.
Flexible mode
Flexible mode simulates the natural movement characteristics of a relaxed wrist joint. This flexible
condition closely approximates the physical movement characteristics of the hand and wrist joint.
To select the flexible mode, push the unlock lever to the stop (see fig.2) until it engages. The joint
can be moved without engaging at the ratchet positions. Pushing the lever again terminates the
flexible mode and the wrist unit engages at the next available position in the rigid mode.
Rigid mode
Various everyday conditions require an individually adjustable wrist unit of the gripping compon
ent in the rigid mode. When the unlock lever is only pushed lightly and not to the stop (see fig.2),
the wrist unit can be moved to the desired position. When the unlock lever is released, the wrist
unit engages at the next available position.

5
2.2 Combination possibilities
This product is to be combined exclusively with components in the Axon-Bus prosthetic system.
Components of the Ottobock MyoBock system or components from other manufacturers cannot
be used with this product.
3 Intended use
3.1 Indications for Use
The MichelangeloHand 8E500 is to be used exclusively for exoprosthetic fittings of the upper
limbs.
3.2 Conditions of use
The product was developed for everyday use and must not be used for unusual activities. These
unusual activities include, for example, sports which involve excessive strain and/or shocks to the
wrist joint (pushups, downhill racing, mountain biking, ...) or extreme sports (free climbing,
paragliding, etc.). Furthermore, the product should not be used to operate motor vehicles, heavy
equipment (e.g. construction machines), industrial machines or motor-driven equipment.
The product is intended exclusively for use on one patient. Use of the product by another person
is not approved by the manufacturer.
Permissible ambient conditions are described in the technical data (see page14).
3.3 Indications
• Amputation level transradial and transhumeral
• For unilateral or bilateral amputation
• Dysmelia of the forearm or upper arm
• The user must be able to understand usage instructions and safety notices and put them into
practice.
• The patient must fulfil the physical and mental requirements for perceiving visual/acoustic sig
nals and/or mechanical vibrations.
3.4 Contraindications
• All conditions which contradict or go beyond the specifications listed in the section on
"Safety" and "Indications for use".
3.5 Qualification
The fitting of a patient with the product may only be carried out by O&P professionals who have
been authorised with the corresponding Ottobock training.
4 Safety
4.1 Explanation of warning symbols
WARNING Warning regarding possible serious risks of accident or injury.
CAUTION Warning regarding possible risks of accident or injury.
NOTICE Warning regarding possible technical damage.
4.2 Structure of the safety instructions
WARNING
The heading describes the source and/or the type of hazard
The introduction describes the consequences in case of failure to observe the safety instruc
tions. Consequences are presented as follows if more than one consequence is possible:
> E.g.: Consequence 1 in the event of failure to observe the hazard

6
> E.g.: Consequence 2 in the event of failure to observe the hazard
►This symbol identifies activities/actions that must be observed/carried out in order to avert
the hazard.
4.3 General safety instructions
WARNING
Non-observance of safety notices
Personal injury/damage to the product due to using the product in certain situations.
►Observe the safety notices and the stated precautions in this accompanying document.
WARNING
Use of damaged power supply unit, adapter plug or battery charger
Risk of electric shock due to contact with exposed, live components.
►Do not open the power supply unit, adapter plug or battery charger.
►Do not expose the power supply unit, adapter plug or battery charger to extreme loading
conditions.
►Immediately replace damaged power supply units, adapter plugs or battery chargers.
WARNING
Operating the prosthetic system near active implanted systems
Interference with active implantable systems (e.g., pacemaker, defibrillator, etc.) due to electro
magnetic interference of the prosthetic system.
►When operating the prosthetic system in the immediate vicinity of active implantable sys
tems, ensure that the minimum distances stipulated by the manufacturer of the implant are
observed.
►Make sure to observe any operating conditions and safety instructions stipulated by the man
ufacturer of the implant.
CAUTION
Independent manipulation of the product
Injury due to malfunction and resulting unexpected prosthesis actions.
►Manipulations to the product other than the tasks described in these instructions for use are
not permitted.
►The product and any damaged components may only be opened and repaired by authorised,
qualified Ottobock personnel.
CAUTION
Signs of wear on the product
Injury due to faulty control or malfunction of the product.
►In the interest of the patient's safety and in order to maintain operating reliability, the product
should be serviced at regular intervals.

7
4.4 Information on Proximity to Certain Areas
CAUTION
Proximity to sources of strong magnetic or electrical interference (e.g. theft prevention
systems, metal detectors)
Injury due to unexpected behaviour of the prosthesis system caused by interference with internal
data communication.
►Avoid remaining in the vicinity of visible or concealed theft prevention systems at the
entrance/exit of stores, metal detectors/body scanners for persons (e.g. in airports) or other
sources of strong magnetic and electrical interference (e.g. high-voltage lines, transmitters,
transformer stations, computer tomographs, magnetic resonance tomographs, etc.).
►When walking through theft prevention systems, body scanners or metal detectors, watch
for unexpected behaviour of the prosthetic system.
CAUTION
Insufficient distance to HF communication devices (e.g. mobile phones, Bluetooth
devices, WiFi devices)
Injury due to unexpected behaviour of the product caused by interference with internal data
communication.
►Therefore, keeping a minimum distance of 30cm from HF communication devices is recom
mended.
4.5 Information on Alignment/Adjustment
CAUTION
Operator errors during the adjustment process with the adjustment software
Injury due to unexpected product behaviour.
►Participation in an Ottobock product training course is mandatory prior to using the product.
During this product training course you will receive a password giving you access to the
adjustment software. Additional product training courses may become necessary to qualify
for software updates.
►Do not share your unlock PIN.
►Use the online help which is integrated into the software.
CAUTION
Incorrect electrode settings
Injury due to unexpected product behaviour.
►The electrodes are to be placed on intact skin only and with as much electrode-skin contact
as possible. In the case of strong interference from electronic devices, the position of the
electrodes should be checked and changed if necessary. If the interference cannot be elim
inated or if you do not achieve the expected results by adjustment or selection of the appro
priate control programme, please contact the Ottobock branch responsible for your country.
►Set the electrode gain as low as possible in order to reduce interference from powerful elec
tromagnetic radiation (e.g. visible or or concealed theft prevention systems at the
entrance/exit of stores), metal detectors/body scanners for persons (e.g. in airports) or other
sources of strong electromagnetic interference (e.g. high-voltage lines, transmitters, trans
former stations, computer tomographs, magnetic resonance tomographs, etc.).

8
4.6 Information on Use
CAUTION
Improper use
Injury due to malfunction and resulting unexpected prosthesis actions.
►Instruct the patient in the proper use of the product.
CAUTION
Mechanical stress on the product
Injury due to faulty control or malfunction of the product.
►Do not subject the product to mechanical vibrations or impacts.
►Check the product for visible damage before each use.
CAUTION
Operation outside of the permissible temperature range
Injury due to faulty control or malfunction of the product.
►Avoid operation in areas outside the permissible temperature range (see page14).
CAUTION
Penetration of dirt and humidity into the prosthetic components
Injury due to faulty control or malfunction of the prosthetic components.
►Ensure that neither solid particles nor liquids can penetrate into the product or prosthetic
components (e.g. the terminal device).
CAUTION
Changing Axon-Bus gripping components when switched on
Injury due to faulty control or malfunction of the Axon-Bus prosthetic system.
►Power down the Axon-Bus prosthetic system by pressing the button in the charging recept
acle before changing any Axon-Bus components (e.g. Axon-Bus gripping component).
CAUTION
Unintentional unlocking of the Axon-Bus gripping component
Injury due to releasing the Axon-Bus gripping component from the forearm (e.g. while carrying
objects).
►The two release buttons should only be activated in order to change the Axon-Bus gripping
component, deliberately and with due consideration of the respective situation.
NOTICE
Improper product care
Damage to the product due to the use of incorrect cleaning agents.
►Only clean the product with a damp cloth and mild soap (e.g. 453H10=1-N Ottobock Der
maClean).
►Use only the following products for cleaning/disinfecting the inner socket:
Cleaning: 453H10=1-N Ottobock DermaClean
Disinfection: Colourless, conventional medical disinfectants

9
4.7 Information on the Power Supply/Battery Charging
CAUTION
Charging the product with soiled or damaged contacts
Injury due to unexpected behaviour of the product caused by insufficient charging.
►Make sure that the contacts are always clean and free of grease.
►Clean the electrical contacts of the charging plug and charging receptacle regularly using
cotton swabs and a mild soap solution.
►Take care to avoid damaging the contacts with pointed or sharp objects.
NOTICE
Use of incorrect power supply unit/battery charger
Damage to product due to incorrect voltage, current or polarity.
►Use only power supply units/battery chargers approved for this product by Ottobock (see
instructions for use and catalogues).
NOTICE
Contact of the charging plug with magnetic data carriers
Wiping of the data carrier.
►Do not place the charging plug on credit cards, diskettes, audio or video cassettes.
5 Scope of Delivery and Accessories
5.1 Scope of delivery
• 1pc. 8E500 Michelangelo hand
• 1pc. Instructions for use (qualified personnel)
• 1pc. Instructions for use (user)
5.2 Accessories
The following components are not included in the scope of delivery and must be ordered separ
ately:
• "560X500=* AxonSoft" adjustment software
• 757L500 AxonCharge Integral
• 757B501 AxonEnergy Integral
• 13E500 AxonMaster
• 9S503 AxonRotation (active rotation unit)
or
• 9S501 AxonRotation Adapter (passive rotation unit)
• 13E200=* electrode
• 13E202=* suction socket electrode
• 13E129=* electrode cable
• 8S501=* AxonSkin Natural for men (different skin colours)
• 8S502=* AxonSkin Natural for women (different skin colours)
• 8S500=* AxonSkin Visual (sheer, translucent)
• 8S511=* AxonSkin Silicone for men (different skin colours)
• 8S512=* AxonSkin Silicone for women (different skin colours)

10
6 Preparing the product for use
6.1 Donning the prosthetic glove
INFORMATION
Do not use silicone spray when putting on the prosthetic glove. This impairs the secure fit of the
glove and can limit the functionality of the product (hand).
Observe the instructions for use provided for the prosthetic glove and the process for putting it
on and taking it off described in the same.
For daily use, the Michelangelo Hand must be worn with the AxonSkin prosthetic glove. The glove
protects the mechanism against environmental influences such as moisture, dirt and dust.
For information about the use (putting on and taking off) and care of the prosthetic glove, please
refer to the instructions for use included with the prosthetic glove.
6.2 Settings
Adjustments to the product can be made via Bluetooth data transmission using the 560X500=*
AxonSoft software. For this purpose, a wireless connection must be established between the
13E500 AxonMaster and the PC with the help of the 60X5 BionicLink PC.
For further information, see the instructions for use provided with the 13E500 AxonMaster and the
560X500=* AxonSoft software.
7 Use
7.1 Changing the Axon-Bus gripping component
Attaching the Axon-Bus gripping component to the socket
1) Slide the terminal device on to the socket (rotation anchored in the socket) until it locks in
place audibly.
2) Verify proper attachment by pulling on the terminal device.
Separating the Axon-Bus gripping component from the socket
1) To switch off the Axon-Bus prosthetic system, press the charging
receptacle button and hold for more than one second.
2) Press both unlock buttons on the flexion wrist unit.
INFORMATION: For safety reasons the Axon-Bus gripping
component cannot be removed if only one unlock button is
pressed.
3) Separate the Axon-Bus gripping component from the socket.
7.2 Switching the product on and off
INFORMATION
Switching off the Axon-Bus prosthetic system during extended passive pauses (e.g. air or rail
travel, visit to a theatre or cinema, etc.) will make the battery last longer before requiring a
recharge. Only the entire Axon-Bus prosthetic system with all connected components can be
switched off. Individual Axon-Bus components cannot be switched off separately.

11
CAUTION
Storage of the product in the closed state
Injury due to faulty control or malfunction of the product as a result of damage to the sensors
and mechanism.
►Store the product only in the neutral position or in the open state.
►1) Push and hold the charging receptacle button until a confirma
tion sound is heard (at least 1 second).
→The prosthesis and prosthetic components are switched on.
Repeat this process to switch the prosthesis and prosthetic compo
nents off.
INFORMATION
The Axon-Bus prosthetic system cannot be used as long as the charging plug is connected to
the charging receptacle. The Axon-Bus prosthetic system is deactivated for the duration of char
ging.
7.3 Opening the Axon-Bus gripping component in an emergency
This safety function allows the Axon-Bus gripping component to be
opened regardless of the control signals present.
1) With the Axon-Bus prosthetic system switched on, press the char
ging receptacle button and hold for approximately three seconds
until the Axon-Bus gripping component begins to open.
→A pulsating beep sounds as it opens.
2) Releasing the button immediately stops the process of opening
the Axon-Bus gripping component and turns the entire Axon-Bus
prosthetic system off.
8 Maintenance
Performing regular maintenance (service inspections) every 24 months is recommended to pre
vent injuries and maintain the quality of the product.
In general, all products are subject to compliance with the maintenance intervals during the war
ranty period. This is the only way to maintain full warranty cover.
Additional services such as repairs may be provided in the course of maintenance. These addi
tional services may be provided free of charge or can be billable according to an advance cost
estimate, depending on the extent and validity of the warranty.
The following components must always be sent in for maintenance and repairs:
The product, battery charger and power supply. The shipping container for the loaner unit you
receive must be reused for sending back the components requiring inspection.
9 Legal information
9.1 Liability
The manufacturer will only assume liability if the product is used in accordance with the descrip
tions and instructions provided in this document. The manufacturer will not assume liability for

12
damage caused by disregarding the information in this document, particularly due to improper
use or unauthorised modification of the product.
9.2 Trademarks
All product names mentioned in this document are subject without restriction to the respective
applicable trademark laws and are the property of the respective owners.
All brands, trade names or company names may be registered trademarks and are the property of
the respective owners.
Should trademarks used in this document fail to be explicitly identified as such, this does not justi
fy the conclusion that the denotation in question is free of third-party rights.
9.3 CE conformity
Otto Bock Healthcare Products GmbH hereby declares that the product is in compliance with
applicable European requirements for medical devices.
This product meets the requirements of the 2014/53/EU directive.
The full text of the regulations and requirements is available at the following Internet address:
http://www.ottobock.com/conformity
9.4 Local Legal Information
Legal information that applies exclusively to specific countries is written in the official language
of the respective country of use in this chapter.
This device complies with part 15 of the FCC Rules. Operation is subject to the following two
conditions:
1) This device may not cause harmful interference, and
2) This device must accept any interference received, including interference that may cause
undesired operation.
This equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection
against harmful interference in a residential installation. This equipment generates uses and can
radiate radio frequency energy and, if not installed and used in accordance with the instructions,
may cause harmful interference to radio communications. However, there is no guarantee that
interference will not occur in a particular installation. If this equipment does cause harmful inter
ference to radio or television reception, which can be determined by turning the equipment off
and on, the user is encouraged to try to correct the interference by one or more of the following
measures:
—Reorient or relocate the receiving antenna.
—Increase the separation between the equipment and receiver.
—Connect the equipment into an outlet on a circuit different from that to which the receiver is
connected.
—Consult the dealer or an experienced radio/ TV technician for help.
Any changes or modifications not expressly approved by the party responsible for compliance
could void the user’s authority to operate the equipment.
Caution: Exposure to Radio Frequency Radiation.
This device must not be co-located or operating in conjunction with any other antenna or transmit
ter.
Responsible party:
Otto Bock Health Care, LP
3820 West Great Lakes Drive
Salt Lake City, Utah 84120-7205 USA

13
Phone + 1-801-956-2400
Fax + 1-801-956-2401
This device complies with RSS 210 of Industry Canada.
Operation is subject to the following two conditions:
(1) this device may not cause interference, and
(2) this device must accept any interference, including interference that may cause undesired
operation of this device.
L’ utilisation de ce dispositif est autorisée seulement aux conditions suivantes:
(1) il ne doit pas produire d’interference et
(2) l’ utilisateur du dispositif doit étre prêt à accepter toute interference radioélectrique reçu,
même si celle-ci est susceptible de compromettre le fonctionnement du dispositif.
Caution: Exposure to Radio Frequency Radiation.
The installer of this radio equipment must ensure that the antenna is located or pointed such that
it does not emit RF field in excess of Health Canada limits for the general population; consult
Safety Code 6, obtainable from Health Canada’s website
http://www.hc-sc.gc.ca/rpb.
Responsible party:
Otto Bock Healthcare Canada Ltd.
5470 Harvester Road
L7L 5N5 Burlington, Ontario
Canada
Phone + 1-800-665-3327
Caution: Federal law (USA) restricts this device to sale by or on the order of a practitioner
licensed by law of the State in which he/she practices to use or order the use of the device.
10 Appendices
11 Appendices
11.1 Symbols Used
Manufacturer
In some jurisdictions it is not permissible to dispose of these products with unsor
ted household waste. Disposal that is not in accordance with the regulations of
your country may have a detrimental impact on health and the environment. Please
observe the instructions of your national authority pertaining to return and collec
tion.
Declaration of conformity according to the applicable European directives
Serial number (YYYY WW NNN)
YYYY – year of manufacture
WW – week of manufacture
NNN – sequential number

14
11.2 Technical data
Ambient conditions
Storage (with and without packaging) +5°C/+41°F to +40°C/+104°F
Max. 85%relative humidity, non-condensing
Transport (with and without packaging) -20°C/-4°F to +60°C/+140°F
Max. 90% relative humidity, non-condensing
Operation -5°C/+23°F to +45°C/+113°F
Max. 95% relative humidity, non-condensing
General information
Reference number 8E500
Opening width 120mm/4.72inch
Weight of Michelangelo hand alone, without
the AxonRotation Adapter and without a pros
thetic glove
approx. 510g/18oz
Flexion of the wrist 75°/four locking positions
Extension of the wrist 45°/three locking positions
Expected lifetime given compliance with the
recommended maintenance intervals
5years
The following gripping forces and load limits apply only when the battery of the Axon-Bus pros
thetic system is fully charged and at room temperature.
Maximum gripping forces
Gripping force "Opposition Mode" Approx. 70N
Gripping force "Lateral Mode" Approx. 60N
Gripping force "Neutral Mode" Approx. 15N
Load limits
Maximum vertical load on the palm with locked
wrist joint (e.g. when holding a sphere)
10kg / 22.1lbs
Maximum load on the actively driven fingers
(index finger, middle finger) in the fully open
hand position (e.g. holding a plate)
10kg / 22.1lbs
Maximum load on the actively driven fingers
(index finger, middle finger) in the closed hand
position (e.g. carrying bags)
20kg / 44.1lbs
Maximum vertical load on the knuckles (e.g.
bracing oneself on the fist)
60kg / 132lbs
Weight of objects (typical diameter
19mm/0.75inch) before they slide out of the
hand ("Power Grip" grip type)
18kg / 39.6lbs
11.3 Glossary
The term "Axon" stands for Adaptive exchange of neuroplacement data. The Axon-Bus is an
Ottobock innovation for the field of exoprosthetics: a data transmission system, derived from
safety-related bus systems in the aviation and automobile industries. For the user this means
enhanced safety and reliability because of a considerably reduced sensitivity to electromagnetic
interference in comparison with conventional systems.

15

© Ottobock · 647G587-0=en_INT-09-2202
Otto Bock Healthcare Products GmbH
Brehmstraße 16 · 1110 Wien · Austria
T [phone] · F [phone]
[email protected] · www.ottobock.com
The 8E500 Michelangelo is covered by the following patents:
Australia: AU2006332253; AU2006332292; AU2006332315; AU2006332317; AU2006332 318;
AU2006332316;
Canada: CA2631970; CA2631982; CA2632241; CA2632551; CA 2 632 240; CA 2 676 196; CA 2
678 987; CA 2 631 966
China: CN101340864; CN101340865; CN101340866; CN101340867, CN101 346107;
CN101346109; CN101681704
Japan: JP4843055; JP5242409; JP5123206; JP5074414; JP5155183; JP5389 667;
JP5074415
Mexico MX285670; MX286932; MX291871; MX291872; MX292784
Russia: RU2387412; RU2414871; RU2416379; RU2423952; RU2427348; RU2429803;
RU2469429
South Korea KR101131692; KR101169 834; KR101178679; KR101178646; KR 101 509 265; KR 101
509 264; KR 101 353 867; KR 101 265 934
Taiwan: R.O.C. Invention Patent No. I421884
USA: US7867287; US8016969; US8257446; US8188835; US8579991; US 8 663 339; US 8
690 963
European Patent EP 1962732 in AT, DE, FR, GB, IT, NL, SE, TR; EP 1962734 in AT, DE, FR, GB, IT, NL, SE, TR;
EP 1962737 in AT, DE, FR, GB, IT, NL, SE, TR; EP 1962738 in DE, FR, GB, TR; EP 1971297 in
AT, DE, FR, GB, IT, NL, SE, TR; EP 2129340 in DE, FR, GB, IS, IT, NL, SE, TR; EP 2115752 in
AT, CH, DE, ES, FR, GB, IT, NL, SE, TR; EP 2528549 in DE, FR, GB, IS, PL, TR
Patents pending in Brazil, EPA, Germany, India, Mexico and USA.
The 8E500 Michelangelo or parts thereof are covered by the following registered designs and design patents:
Australia: 317212; 317213; 317214; 317789; 317790; 317791; 317792; 317866; 317867; 317868; 317869;
317870; 317871
Canada: Ottobock No. 122162; 122163
China: ZL 200730154423.X; ZL 200730154429.7; ZL 201130050582.1; ZL 201130050654.2; ZL
200730154424.4; ZL 200730154425.9
European Design: No.000786421; No.000786694; No.001824004
Germany: 40701345.8; 40701357.1
India: 212295; 212296; 212297; 212298; 212299; 212300; 212301; 212302; 212303
Japan: RegisteredDesignNo.1365277; 1365278
Russia: 69071; 70542
Taiwan: R.O.C. DesignPatentD128170; D128171
USA: PatentUSD595,854; D597,672; D694,189; D697 030
Michelangelo is a tradename of Otto Bock Healthcare GmbH.
Michelangelo is a registered trademark in many countries of the world, beside others registered at the US Patent and Trade
mark Office, Reg.–No. 4008171.