Upper Extremity Prosthetics

Prosthetic upper limbs2

 

Upper limb prostheses can be applied anywhere from the shoulder joint through to the fingers. These could include the fingers, the hand, the wrist, the forearm, the elbow, the upper arm, and the shoulder. Patients use upper limb prostheses for two general purposes – to improve their appearance and to increase the ability to perform tasks.
Unfortunately, these two purposes often conflict with one another. Prostheses that look like normal hands are often limited in their functionality, while highly functional devices may look unattractive. Many patients use two different prostheses: one for situations in which appearance is most important, and another for situations in which adequate function is desired.

Types of Upper Extremity Prosthetics:

Myoelectric: The most natural and fuctional prosthesis available. It uses the patient’s muscles to control the hand, elbow, or both depending on the amputation level.
Hybrid: A combination of myoelectric and body-powered components. When designed appropriately, a hybrid prosthesis is extremely functional for above elbow (transhumeral) amputees.
Body-Powered: This is a tranditional hook-and-cable operated prosthesis. These systems are very durable and functional within a limited sphere.
Cosmetic/Passive: Although cosmetic/passive prostheses have typically been thought of a non-functional, this incorrect. These types of prostheses provide bi-manual functions such as carrying and holding objects.
Sport/Recreational: These are designed to perform specific tasks that are not easily accomplished with traditional prostheses (fishing, photography, baseball, culinary arts, swimming, golf etc)
Work-Specific: Jobs that are repetitive in nature, such as assembly work. could require a unique, custom-designed prosthesis that allows the patient to return to work. Their possibilities are endless with a well-engineered prosthetic device.
Accessories:

Stump stockings and harnesses (including replacements) are considered medically necessary when they are essential to the effective use of the artificial limb.

 

Cosmetic Arm Prostheses

Cosmetic, or passive prostheses, are worn by people who have difficulty operating active prostheses or wear a prosthesis for cosmetic reasons only. For some users, the active function of an upper extremity prosthesis is less important than design, appearance, comfort, weight, or even ease of use. Otto Bock Cosmetic Arms are a great choice for people who value a natural look.

Cosmetic Hands

Otto Bock Cosmetic Hands consist of an inner hand and a cosmetic glove. The form, color and surface structure of the cosmetic glove simulate the natural hand in great detail. Choose from 43 models in 18 colors for men, women and children. The glove can be easily cleaned, maintained and serviced.

The grip function depends on the construction of the hand mechanism. Cosmetic prostheses are also compatible with passive System Hands. They are opened with the healthy hand and closed independently.

Myoelectric Arm Prostheses

Myoelectric prostheses are electrically powered prostheses controlled by the myoelectrical impulses generated by a user’s muscle contractions.

12K100 Dynamic Arm

The DynamicArm is an electronically controlled elbow joint with continuous gearing.  Its vario-gear permits a more natural reproduction of a natural arm movement pattern through the continuous adjustment of gear ratio to the environmental conditions (input signal of the patient, movement phase,load to be lifted). Its harmonious movements combine high precision with speed to provide the patient with more independence in everyday life. The low level of operating noise and the slightly dampened and completely silent free-swing phase support the natural, inconspicuous appearance.The shape and basic colour of the DynamicArm also match quite well with the human body and allow the amputation to slip into the background of daily life.  Silicone elements discreetly divided into various colours dampen noises and shocks, such as those that may be caused when supporting oneself on a rigid surface.Integrated into an appealing and unobstrusive design with the highest possible function, DynamicArm provides patients with quality of life. 

SensorHand Speed

At maximum speed, this hand opens and closes almost three times as fast as a standard System Electric Hand.

With a dizzying 300 mm per second opening/closing speed, (more than twice as fast as before) and enhanced EMG signal processing, the SensorHand Speed has unmatched performance. In addition, our unique AutoGrasp feature prevents held objects from slipping by recognizing when an object begins to slip and automatically increasing the grip force as needed. SensorHand Speed also allows you to use one or two input devices and to select from various control options.    

Proportional Speed and AutoGrasp Feature

Faster! Proportional speed from 15-300 mm/second. Twice the speed of other myoelectric hands (standard hands run at approximately 130 mm/second). Enhanced EMG signal processing and improved software make the SensorHand Speed even more responsive to user’s signals. Experienced users say they can’t ‘outcontract’ the hand.  

  • The SensorHand Speed has a high user acceptance rate because it’s quicker to open, to change between opening and closing, and to accumulate grip force.
  • The AutoGrasp feature allows the wearer to simply hold an object and avoid wasting energy on monitoring whether the item is slipping or not. AutoGrasp can even be turned off when not needed.
  • The standard slip-clutch allows the wearer to release the hand quickly in an emergency.
  • Improved design along with a new microprocessor and advanced software make the Speed faster and quieter without having to use possibly damaging higher voltage batteries.
  • Increased opening power is designed to overcome any resistance from stiff gloves and handshells.
  • Effective at lower temperatures: the SensorHand Speed works normally in temperatures as low as -4°F/-20° C.
Endoskeletal Adapter 8R1=*

Endoskeletal Adapter 8R1=*

The Endoskeletal Adapter allows the application of the Transcarpal Hand as a particularly short and lightweight hand with quick-disconnect mechanism for fittings of long residual limbs. Thanks to the endoskeletal tube system, which is easily cut to the required length, the Transcarpal Hand is also a lightweight fitting alternative for short residual limbs. The Endoskeletal Adapter can be combined with any Transcarpal Hand of the corresponding size.

Transcarpal Hand DMC plus®

Transcarpal Hand DMC plus®

The Transcarpal Hand with DMC plus (Dynamic Mode Control) sets new standards: grip speed and grip force are regulated in proportion to the strength of the muscle signal. Transcarpal Hand The Transcarpal Hand with DMC plus (Dynamic Mode Control) sets new standards: Grip speed is variable from 15 to 130 mm/sec. Plus, the high maximum grip speed and the optimal balance of grip force and speed allow the patient to experience more physiological gripping than they've ever experienced before. The DMC plus® control contains both the original DMC control and the DMC plus® mode. The DMC plus® mode includes a virtual "hand switch": After gripping once with maximum grip force, a slightly higher signal is required to open the hand. This improves gripping security and facilitates the holding of such things as eating utensils.

Transcarpal Hand

Transcarpal Hand

The use of myoelectric components to treat amputations and malformations in the transcarpal region was long considered impossible. Until now. Otto Bock has developed unique solutions for treating especially long residual limbs. Patients with long residual limbs have a myoelectric option with Otto Bock�s 8E44 Transcarpal Hand. To create a hand as lightweight and compact as possible, Otto Bock has made the motor 1/3 smaller and repositioned it to take up less room proximally. The result is a hand with the same grip force as comparable adult hands. And to save even more room we've created an innovative new connection technique that uses cable loops instead of a lamination ring. The Transcarpal Hand can be operated with either the DMC plus or Digital Twin control units. Because many patients with long residual limbs can perform pronation and supination (ulna and radial bones conserved) the relevant joint for this function has been left away. To make sure as many patients as possible can be fit, we offer three standard sizes (7 ¼, 7 ¾, 8 ¼) in two control variations.

System Electric Hand Digital Twin

System Electric Hand Digital Twin

The Electric Hand with Digital Twin control combines two classic features in one: digital and double-channel control. Digital Twin Control combines the two classical Digital Control and Double Channel Control (Single Site) into one hand. This you can decide which control mode is best suited for your patient.

DMC plus® - System Electric Hand

DMC plus® - System Electric Hand

With the DMC plus - System Electric Hand, our patient can naturally control grip speed and grip force in proportion to their muscle signal with the Dynamic Mode Control (DMC) plus electric hand. DMC sets a new standard in myoelectric prosthetics: Grip speed and grip force are controlled proportional to the strength of the muscle signal. For response characteristics that are even more sensitive, there's the new DMC plus. This control also features a new type of safety mode: After gripping once with maximum force, a slightly higher EMG signal is required to open the hand. This reduces the chances of the hand opening due to unintentional muscle contraction. Digital Twin Control combines Digital Control and Double Channel Control (Single Site) into one hand. This allows you to decide which control mode is best for your patient.

MyoHand VariPlus Speed®

MyoHand VariPlus Speed®

The MyoHand VariPlus Speed® is a new development from Otto Bock. It combines the mechanical characteristics of the SensorHand Speed® and the control options of the DMC VariPlus system electric greifer. At a glance Available in 3 hand sizes (7 ¼, 7 ¾, 8 ¼) Available with 3 connection options (quick-disconnect wrist, lamination ring, threaded stud) High active proportional grip force (up to 100 N) High proportional speed (up to 300 mm/s) No coding plug (program selection using the 757T13 MyoSelect) Grip recognition and grip force build-up via bow sensor No thumb sensorMigration of control programs from the DMC VariPlus greifer � Advantage: Fast digital control program Thanks to the high gripping strength and speed, objects can be gripped quickly and precisely. With the 757T13 MyoSelect, a total of 6 different programs can be selected and adapted according to your patient�s indications. This permits optimum adaptation to the needs and abilities of the prosthesis wearer. The elimination of the thumb sensor allows our patient to grip actively and consciously. Items have to be held and positioned by targeted muscle signals since the electronics of the MyoHand do not readjust the grip force automatically. The MyoHand VariPlus Speed® is recommended for active patients with a low amputation level in particular. A key advantage of the hand is that the patient can actively build up a grip force of up to 100 N. An optimum selection for our patient can be made from numerous different control programs. With each control program, the speed and build-up of grip force can be optimally adapted to patient requirements using the 757T13 MyoSelect.

Skin Natural Gloves

Skin Natural Gloves

Durable and easy to clean, Skin Natural gloves provide more realistic characteristics due to a multilayered structure that creates an impression of depth. The PVC-based material provides robust features for the gloves, showing high durability compared to other materials. Skin Natural is appropriate for patients wearing myoelectric, body powered, and passive arm prostheses.

Transcarpal Hand Digital Twin

Transcarpal Hand Digital Twin

The Transcarpal Hand with Digital Twin control combines two classic features in one: digital and double-channel control. The function plug supplied with the prosthesis will be used to select the desired control mode, allowing the prosthetist to decide during trial fitting which control mode is best for the patient.

System Electric Hand size 7

System Electric Hand size 7

The advanced System Electric Hand size 7 was designed especially for adolescents and adults with very small hands. Though significantly smaller, shorter and lighter, the size 7 still has the same grip force and grip speed as the other System Electric Hands. The sizing system for the System Electric Hand for adults and the 2000 Electric Hand for children have proven very effective. The hand covers a wide range of sizes � from children to adults. The Otto Bock size 7 System Electric Hand closes the gap between the children�s 2000 Electrohand and the System Electric Hand. It is also suitable for users with very long residual limbs. And though it's significantly smaller, shorter and lighter, the size 7 has the same grip force and grip speed as the other System Electric Hands. The hand weighs a mere 350 g (3.4 oz.) (including the wrist connection and inner hand) and is 100 g (3.5 oz.) lighter than the next larger size (7 ¼). Moreover, because it is 33 mm (1.3 in.) shorter than size 7 ¼, it is also suitable for patients with very long residual limbs. The new System Electric Hand, size 7 is available with your choice of wrist connections: the Quick-Disconnect Wrist, the Lamination Ring or the threaded stud. Available with DMC plus® or DigitalTwin® control.

Hooks

Hooks

Hooks

Hooks are opened via a body harness worn on the upper body. They close independently by means of spring or elastic components. Hooks are made of particularly tough materials, such as stainless steel. In addition, they are easy to clean and are lightweight (aluminum alloy). Standard and working hooks are available for adults, children and adolescents. While standard hooks are intended for a general use, working hooks with their robust construction as well as diverse and specialized grip options are particularly well-suited for crafts and carpentry.

Hooks

Hooks

For cable-controlled prostheses, a hook can be used as a terminal device instead of a System Hand. Hooks are designed for activities that demand extreme precision for grasping small objects such as screws or nails. The hook is a reliable, robust and resilient tool for manual labor or activities in a difficult environment (such as those that involve solvents or moisture).

System Hands

System Hands

The System Hand is a tremendous choice for either cosmetic or functional needs.

Body Harnesses

Upper Extremity Joint Bars

Upper Extremity Joint Bars

Upper extremity joint bars are invaluable functional components for certain types of upper extremity orthoses and prostheses.

Body Harnesses

Body Harnesses

Otto Bock Body Harnesses allow users to control hand and elbow functions through movements of the residual limb and shoulder. Greater movement, simple control. Otto Bock Body Harnesses control hand and elbow functions through movements of the residual limb and shoulder. Body Harnesses 21A35 & 21A36 The Body Harnesses give patients excellent proprioceptive feedback without the hassle of complicated harnesses or constrictive neck straps. Both the BE and Triple-Pull harnesses create continuous movement but don't require sewing. In addition, the Body Harnesses have hygienic, removable axilla pads and easy to use, adjustable straps.

Upper Extremity Liners

Silicone ArmLiners provide an intimate fit without irritating the skin. They feature two-way stretch, yet are strong enough to prevent unwanted stretching longitudinally offering both comfort and security.

Silicone ArmLiner

A versatile and durable solution for upper extremity limb loss. These liners deliver both comfort and security.

The advantages of silicone:

  • Temperature resistant from -60 °C (-76° F)
    to + 200 °C (393° F)
  • Water, sweat and weather resistant
  • Odor free
  • Good adhesion

The Silicone ArmLiner provides an intimate fit and is skin-friendly. It features two-way stretch, yet is strong enough to resist unwanted stretching longitudinally. The Silicone ArmLiner is also the world’s first liner system specifically designed to meet the requirements of upper extremity prosthetics.And because a lightweight prosthesis is easier to use and more comfortable to wear, we designed the liner to be as thin and light as possible.The corresponding 14A1 Lock Set was developed after many years experience in upper extremity prosthetics. It is lightweight, functional and easy to use. The lock was designed to be as short as possible, which is especially important for people with long residual limbs.
Fittings with myoelectric devices require precise positioning in the prosthetic socket. For this reason, the Silicone ArmLiner pin system was designed with only a single ratchet.

Custom Silicone Liners

Custom-made silicone liners can be used whenever standard liners are no longer flexible and dynamic enough to accommodate difficult residual limbs.

The custom fabrication takes the form and soft tissue conditions of the residual limb into consideration to produce optimal contact between the skin and the liner. Custom Silicone Liners are available for both upper and lower extremity prostheses.

 

 

 

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