MeHand Active
MeHandS
MeHandS
Technical specifications of MeHandS
Size
152 х 76 mm
Supply voltage
11,1 V
Dust protection
IP64
Opening width
120 mm
The grasp in the mode of Lateral Grip
(side grip)
35 Н
The maximum static load on
finger
15 kg.
Weight (without wrist)
450 gram
Operating temperature
-20 .. 60 Celsius degree
Full close time
1,2 sec
The grasp in the mode of Opposition Grip
(counter-Tong)
75 Н
Grip force in Pinch Grip mode (2x
finger pinch)
45 Н
Maximum static load on the brush
30 kg.
Peculiar properties MeHandS
1
Superlight
Brush weight (without wrist) 450 gr.
2
Compact
Fits extra small size brushes the world's leading manufacturers
3
Reduce noise
The special design of finger movements produces less mechanical noise when the motors and closing the brush
4
Dust protection – IP64
The design of the brush without a cosmetic shell has a degree of dust protection-IP64, which allows you to use the brush in everyday life without a cosmetic shell. Also reduces the likelihood of brush failure due to the impact of adverse environmental conditions.
5
Feedback
The user has the opportunity to feel the power of the Tong and the work of the prosthesis by means of the built-in vibration motor in the cultural sleeve, which allows you to control the prosthesis even more accurately.
6
Control with programmable RFID tags
Tiny radio chips that can change the grabbed command when the hand is near the chip. Chips can be placed in almost any location or glued to the surface to provide access to the optimal grip for specific tasks in that location. The chips are programmed using the app and can be reprogrammed at any time as needed.
7
Gesture control
Provides a choice of Tong type through smooth movement of the prosthesis in one of four directions (forward, backward, left or right). Tongs for each direction are configured using the application.
8
Contactless on / off power
Contactless on / off power of the prosthesis allows the use of the prosthesis in pair amputation of hands and prevents accidental on / off of the prosthesis under external influence
9
Active rotation of the thumb
Changing the position of the thumb with the motor and built-in sensor allows you to accurately and quickly rotate the thumb and perform more tasks.
10
Sturdy metal support frame
The prosthesis has a strong metal frame, with which the load from the fingers are transferred to the forearm. This allows the prosthesis to withstand heavy loads and create a powerful force when performing Tong.
11
Mechanical system to prevent slipping
Mechanically adjusts the grip and prevents slipping when the captured object slides.
12
Folding fingers
Flip fingers provide natural movement and flexibility when you remove people or collide with objects.
13
Shockproof housing design
The innovative palm design protects the prosthesis from impact and damage and makes the hand quieter.
14
Individual design
The painting of plastic elements or brush coating the external surfaces coloring compounds with different properties (metallic, matte paint, etc.)
15
Touch buttons on the control panel
The large surface area of the touch buttons allows you to control the functions of the prosthesis intuitively. Reference points, made in the form of one or two spheres recessed into the surface at different ends of the sensor area, allow switching modes to the touch, without visual contact
16
Status indicator
The light indication is made in the form of a light-scattering unit located under a translucent silicone casing. That will provide visual information about the status of the prosthesis
17
Compatible with EMG sensors and Otto BOCK battery and other manufacturers
The ability to connect to the prosthesis standard semi-finished products (EMG sensors, battery) of the world's major manufacturers and the minimum cost of replacement or repair of the brush
18
Fingertip
Soft finger pads and wide thumb is having a maximum surface area and improve adhesion.
MeHand Active
Technical parameters MeHand Active
Material
Steel, metal, silicone
Dust protection
IP68
Fingers
Individual typesetting
Thrusts
Steel stranded cable
The system of active adaptation of the form of struggle
+
The maximum static load on the finger
15 kg.
Operating temperature
-20 .. 60 degrees Celsius
Wrist
Three degrees of freedom
Thumb
Passive rotation
Slip prevention system
Mechanical
The locking system and the retention battle
+
Maximum static load on the brush
30 kg.
Peculiar properties MeHand Active
1
Superlight
The low weight of the hand increases comfort during operation, does not require a strong compression of the prosthesis on the stump for secure fixation and reduces fatigue when wearing the prosthesis for a long time.
2
Individual dial fingers
The prosthesis consists of separate finger assemblies. The finger Assembly consists of a finger phalanx and a metal swivel with fastening to the main carrier frame of the hand. Finger assemblies have a series of standardized sizes. This allows you to choose the number of fingers and their size based on the individual characteristics of the patient's stump. If your finger is broken, it is easy to replace it as soon as possible.
3
Simple installation
The prosthesis kit has a special metal mounting frame, which is installed in the sleeve. The frame has a special shape and mounting holes for the fingers, thanks to which the fingers are mounted on accurately calculated places and the brush has a correct and accurate Tong. When installing the prosthesis, it does not take long to look for the right place to install each finger on the cultural sleeve and, just, you need to fasten your fingers to the mounting frame.
4
Sturdy metal support frame
The weakest point of upper limb prostheses is the articulation of the fingers. It is here that most often there is a breakdown. Therefore, the fastening of the fingers is made of metal, has a massive and strong swivel design.
5
Fixed kinematics
Fingers have a strictly calculated position in space, which ensures accurate capture of small objects. You do not need to individually adjust the position of the fingers when assembling the prosthesis.
6
Dust and water protection – IP68
The design of the brush without a cosmetic shell has a degree of dust protection-IP68, which allows you to use the brush in everyday life without a cosmetic shell. Also reduces the likelihood of brush failure due to the impact of adverse environmental conditions. The absence of electronics allows you to immerse the brush in water and use it without harming the prosthesis and the patient.
7
Steel multi-strand pull cables
Finger pulls are made of durable multi-core steel cable, which makes the prosthesis even more durable and allows you to carry large loads.
8
Increased efficiency
3D printed traction dentures have poor surface quality of the channels, which leads to a decrease in efficiency below 50%. When moving cables with no load reduction in efficiency is not noticeable, but when there is a load and cables in the channels are stretched, the patient is difficult to develop a strong grip and to take heavy items because the cable and the channel have a greater resistance. To reduce resistance in the channels, prosthesis rods pass through special channels, which significantly reduce the resistance and increase the efficiency of the prosthesis. This allows patients to create a strong Tong.
9
Shockproof housing design
The innovative palm design protects the prosthesis from impact and damage and makes the hand quieter.
10
Control with a shoulder thrust (Bowden wire)
Management by means of flexion (inclination) in a wrist does not allow to develop strong grip because of weakness of muscles in a forearm. In order for the patient to perform a strong Tong, the prosthesis has a shoulder traction with a Bowden cable, which allows to develop the Tong up to 4 times stronger than with flexion (tilt) in the radiofrequency.
11
Control with wrist flexion
Control with flexion (tilt) in the wrist does not allow you to develop a strong grip, but this control is more convenient in everyday use. The prosthesis is compact, it is easy to put on, which is convenient for pair amputation.
12
Three degrees of freedom of the wrist
The wrist has a connection in the area of the wrist joint with three degrees of freedom, which provides absolute mobility in the wrist and does not limit movement.
13
The locking system and the retention battle
After closing the brush and grabbing the item, the user does not apply force to hold the item. Also, after capturing the object, a person can bend the brush in the wrist joint or weaken the shoulder thrust, and manipulate the captured object by rotating and tilting the brush in the wrist joint. The locking system is active and does not require pre-configuration and manipulation of the second hand, which makes it possible to operate in pair amputations.
In other traction prostheses for grasping and holding of the subject is necessary to apply a force to keep the brush bent in the wrist joint, which is very inconvenient and does not allow you to manipulate the item through the wrist joint because when the extension brush is the opening of the fingers, and the subject drops out of the grip.
14
The system of active adaptation of the form of struggle
Each finger of the prosthesis works independently of the others during the capture of the object. If the shape of the object is complex (curved, with sharp differences in height) or the object is small, the prosthesis, regardless of the complexity of the shape of the object, will clasp the object with all your fingers and hold it securely. This system significantly increases the functionality and allows the prosthesis to clasp objects like a living hand.
15
Passive rotation of the thumb
Changing the position of the thumb with the fixation, allow you to rotate your thumb accurately and quickly and perform more tasks. Due to rotation of the thumb there is an opportunity to execute not only counter capture, but also lateral Tong, 3 x finger pinch and neutral position.

16
Mechanical system to prevent slipping
Mechanically adjusts the grip and prevents slipping when the captured object slides.
17
Folding fingers
Flip fingers provide natural movement and flexibility when you remove people or collide with objects.
18
Fingertip
Soft finger pads and wide thumb is having a maximum surface area and improve adhesion.
Program of the MeHand
Human hand is a complex tool to perform as delicate work requiring precision movements, and heavy manual labor, requiring considerable physical effort. In 2015, Bebionic created a special program MeHand, whose task was to create advanced means of rehabilitation, which are able to restore the lost functionality.
The name Me Hand is that the brush is not just a means of rehabilitation, but a part of the user.
To the line of Me Hand, is the bioelectrical multicolor brush Me HandS (Small) and active-a mechanical prosthesis for partial truncation MeHand Active.