Oymotion technologies Ohand2ch oym-oh-a001ls-b001 User manual

OHandTM Smart Bionic Hand

User Guide

OYMotion Technologies Co., Ltd

www.oymotion.com

1. Trademarks and Disclaimers ...........................................................................................................................1

2. Warnings .............................................................................................................................................................1

3. Models .................................................................................................................................................................1

4. Applicable Cases ............................................................................................................................................... 2

5. Major Components and Dimensions ............................................................................................................ 2

5.1. OHandTM Major Components ..............................................................................................................2

5.2. OHandTM Structure ................................................................................................................................ 3

5.3. OHandTM Dimensions ...........................................................................................................................3

5.4. Passive Rotatory Wrist Diameter ....................................................................................................... 4

5.5. Sensor and Lamination Dummy ........................................................................................................ 5

5.6. Battery and Charging Base ................................................................................................................. 5

6. Assembly Instructions ...................................................................................................................................... 7

6.1. Assembly ................................................................................................................................................ 7

6.2. Factory Settings .....................................................................................................................................8

6.3. Muti-functional Button Switch and Message Beeper ................................................................... 9

6.4. Grips And Mode Switch .....................................................................................................................10

6.5. Grips Slots ............................................................................................................................................ 20

6.6. Grip Lock/Unlock Feature ................................................................................................................. 20

7. Storage, Transportation and Environment Conditions ........................................................................... 20

8. Design Parameters ..........................................................................................................................................21

8.1. Strength and Speed ............................................................................................................................21

8.2. Weight ...................................................................................................................................................21

8.3. Power Supply .......................................................................................................................................21

8.4. Battery ...................................................................................................................................................21

8.5. Power Connector ................................................................................................................................ 22

8.6. Sensor Interfaces .................................................................................................................................22

9. Battery and Charging ..................................................................................................................................... 23

10. Maintenance, Warranty, Repairs and Returns ...................................................................................... 23

10.1. Maintenance .................................................................................................................................... 23

10.2. Warranty and Repairs .................................................................................................................... 24

10.3. After-Sales Services ........................................................................................................................24

11. Common Issues ........................................................................................................................................... 24

12. Packing List .................................................................................................................................................. 25

13. OHand APP Download ...............................................................................................................................26

14. Contact US ....................................................................................................................................................26

1. Trademarks and Disclaimers

OHandTM is the trademark registered by OYMotion Technologies Co., Ltd (OYMotion). The OHandTM

bionic hand was developed by OYMotion based on intellectual properties. Any party without a written

permission from OYMotion is not allowed to copy any part of this document.

2. Warnings

2.1. Warning: Do not expose Li-ion battery to heat, doing so will damage or shorten battery life.

2.2. Warning: Do not place the OHandTM close to any life-supporting medical devices such as a

pacemaker.

2.3. Warning: OHandTM is not water-resistant (IPX-0). If the OHandTM is exposed to liquids internally it can

cause short circuits, rusting, and none reversible damages to the circuits, motors, and gears. Users

shall store the hand away from liquids and away from damp and dusty environments.

2.4. Warning: The main frame and the body of the OHandTM is made of aluminium, stainless steel, silicon

rubber and plastic. If user exceeds the specified loads on the hand it will cause none reversible

damages to the hand. Furthermore, collisions can cause warping to the materials and potential non

reversible damages.

2.5. Warning: It is on the user to be fully responsible to comply with local regulations before operating

any powered machines.

2.6. Warning: It is on the user to be fully responsible to comply with local regulations before operating

any or motorized vehicles.

2.7. Danger: Do not wear the OHandTM while it is charging.

2.8. Use alcohol wipes to clean the sensors’ electrodes and socket frequently especially after use.

Immediately wipe and dry the socket with a napkin after cleaning.

2.9. Turn off OHandTM when it’s not in use to save battery.

3. Models

Device Name

Features

Model (Left Hand)

Model (Right Hand)

OHand2CH

Long Thumb Finger

2 Sensors, 18 Grips

OYM-OH-A001LS-B001(Silver)

OYM-OH-A001LB-B001(Black)

OYM-OH-A001RS-B001(Silver)

OYM-OH-A001RB-B001(Black)

OHandSE

Short Thumb Finger

2 Sensors, 9 Grips

Touchscreen Finger Pads

OYM-OH-A001LSA-B101(Silver)

OYM-OH-A001LBA-B101(Black)

OYM-OH-A001RSA-B101(Silver)

OYM-OH-A001RBA-B101(Black)

OHand

Short Thumb Finger

2 Sensors, 18 Grips

Touchscreen Finger Pads

OYM-OH-A001LSA-B201(Silver)

OYM-OH-A001LBA-B201(Black)

OYM-OH-A001RSA-B201(Silver)

OYM-OH-A001RBA-B201(Black)

4. Applicable Cases

OHandTM smart bionic hand is designed to fit upper limb amputees. For above elbow amputation, an extra

and compatible elbow is needed and configured in the OHand APP software.

5. Major Components and Dimensions

5.1. OHandTM Major Components

OHandTM Smart Bionic Hand Package

1OHandTM Smart Bionic Hand 2-Channel User Guide

2OHandTM Smart Bionic Hand User Guide

3OHandTM Smart Bionic Hand Li-ion Battery (2-Pieces)

4OHandTM Smart Bionic Hand Li-ion Battery Compartments (Removable Battery Only)

5OHandTM Smart Bionic Hand Li-ion Battery Dummy (Removable Battery Only)

6OHandTM Smart Bionic Hand Charging Base (Removable Battery Only)

7OHandTM Smart Bionic Hand sEMG Sensors

8OHandTM Smart Bionic Hand AC220/110 to DC12V/8.4V Power Adapter

9OHandTM Smart Bionic Hand Packing Box

10 OHandTM Smart Bionic Hand (2-Channel BLE Controller)

5.2. OHandTM Structure

5.3. OHandTM Dimensions

There are two sizes of the OHand. The hand with a Bluetooth device name as OHand2CH is the

long-thumb version. And the one with a Bluetooth device name as OHand or OHandSE is the short-thumb

version.

OHand2CH – Long-Thumb Version

OHandSE,OHand – Short-Thumb Version

Dimensions

Size and Angle

OHand2CH

OHand, OHandSE

Middle finger tip to hand base

179 mm±2mm

Thumb tip to hand base

97mm±2mm

88mm±2mm

Thumb Length

111mm±2mm

101mm±2mm

Palm width

83 mm±2mm

Wrist height (Outside socket)

13 mm

Wrist height (Inside socket)

15 mm

Wrist diameter (Outside socket)

53 mm

Wrist diameter (Inside socket)

47 mm

Wrist rotation range

±175 Degree

Thumb swing range (Lateral)

0~31 Degree

Thumb swing range (Opposed)

0~50 Degree

Touchscreen Finger Pads

Yes

5.4. Passive Rotatory Wrist Diameter

Wrist Diameter 47 mm

5.5. Sensor and Lamination Dummy

sEMG Sensor

Outer and Inner Socket Sensor

Dummy

sEMG Sensor With Sensitivity Adjustment

5.6. Battery and Charging Base

The Li-ion battery is the power supply to the OHandTM Smart Bionic Hand. Charge the battery with the

power adapter provided when the battery level is low. OHandTM provides user with two battery types to

choose.

5.6.1. Battery Types

5.6.1.1. Removable Battery and Accessories

Battery

Charging Base

Battery Compartment

5.6.1.2. Internal Battery

Lamination Battery Dummy for Outer Socket

Removable Battery Charger: DC 12V

Remove the battery from its compartment by pulling the lock and then plug the battery into the charging

base as shown in following pictures.

Top View

Side View

Charging a Battery Plugged In Base

As shown in the pictures, there is a dual color LED on the charging base that indicates charging status.

While charging the LED will be red and when the battery is fully charged the LED will be green.

ATTENTION: If charging base is not powered while the battery is plugged in, the green LED will turn on,

this does not mean the battery is fully charged. User must make sure the charging base is properly

Internal Li-ion Battery

Internal Battery Charger: DC 8.4V

Internal battery is mounted between the outer and inner prosthetic limb sockets. The charing port is

mounted on the outer socket by opening a hole. To charge the battery, the DC 8.4V charger is used. A

dual-colored LED on the charger indicates the status, green means fully charged and red means charging.

To replace the internal battery, OHand needs to be removed from outer socket first.

WARNING:

1. Remove prosthetic hand from user’s arm when charging

2. Only use the DC 8.4V charger provided by OYMotion

6. Assembly Instructions

The OHandTM smart bionic hand has one power and two EMG sensor connectors. It’s powered by a 2-cell

7.4V Li-ion battery and driven by two EMG sensors acting as open/close switches.

6.1. Assembly

6.1.1. Removable Battery System Connection

The following picture shows how to connect the OHandTM with one removable battery’s compartment and

two EMG sensors:

Removable Battery System Connection

6.1.2. Internal Battery System Connection

The following picture shows how to connect the OHandTM with one internal battery and two EMG sensors:

Internal Battery System Connection

6.2. Factory Settings

OHandTM is preloaded with 27 functional grip patterns from which user can choose. User and technician can

adjust OHand’s settings based on needs. Each grip can be turned on or off, and be assigned to any slot. The

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