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Medical Devices & Prosthetics Glossary

Definitions of Medical Devices & Prosthetics terms as used by Manifest Prosthetics and Orthotics in Tampa, FL. 22 terms defined.

Jump to: A · B · C · D · G · K · M · P · R · S · T

3D Printed Prosthetics

3D printed prosthetics are artificial limbs manufactured using additive manufacturing technology, often from durable plastics or composites. This approach allows for rapid prototyping, customization, and reduced cost, making prosthetics more accessible. They are particularly useful for pediatric patients who outgrow devices quickly.

A

AFO Brace

An Ankle-Foot Orthosis (AFO) is a custom or prefabricated brace that supports the ankle and foot to improve gait. AFOs are commonly prescribed for conditions like drop foot, stroke recovery, cerebral palsy, and multiple sclerosis. They help stabilize the joint and prevent tripping during walking.

B

Body-Powered Prosthesis

A body-powered prosthesis uses cables, harnesses, and gross body movements to operate a terminal device like a hook or hand. These prosthetics are durable, lower cost, and provide tactile feedback through cable tension. They remain popular for users needing reliability in heavy-duty environments.

C

Carbon Fiber Foot

A carbon fiber prosthetic foot uses energy-storing keel technology to mimic natural ankle motion during walking and running. These feet are lightweight, durable, and return energy with each step for a more efficient gait. They are commonly recommended for active amputees and athletes.

Check Socket

A check socket, also called a test socket, is a clear, temporary prosthetic socket used to evaluate fit before fabricating the definitive device. The transparent material allows the prosthetist to observe pressure points and skin contact. Adjustments are made to ensure comfort and proper alignment.

Cranial Remolding Helmet

A cranial remolding helmet is a custom orthotic device used to gently reshape an infant's skull affected by plagiocephaly or brachycephaly. The helmet applies gentle pressure to flat areas while leaving room for natural growth in others. Treatment typically lasts three to six months.

Custom Foot Orthotics

Custom foot orthotics are medical-grade shoe inserts molded specifically to a patient's foot shape and biomechanics. They treat conditions like plantar fasciitis, flat feet, and diabetic foot complications. Unlike over-the-counter insoles, custom orthotics are prescribed after a gait analysis and physical assessment.

D

Definitive Prosthesis

A definitive prosthesis is the final, long-term artificial limb provided after the residual limb has stabilized in size and shape. It is built with permanent components and finishes designed for years of use. This stage follows the preparatory or initial prosthesis worn during early rehabilitation.

Diabetic Footwear

Diabetic footwear consists of specially designed shoes and inserts that protect feet with reduced sensation or circulation. Features include extra depth, seamless interiors, and pressure-redistributing insoles to prevent ulcers and amputations. Medicare often covers one pair of therapeutic shoes annually for qualifying patients.

G

Gait Analysis

Gait analysis is the systematic study of how a person walks, often using video, sensors, or pressure plates. Clinicians use the data to identify abnormalities and prescribe appropriate prosthetics, orthotics, or therapy. It is essential for optimizing prosthetic alignment and orthotic design.

K

KAFO Brace

A Knee-Ankle-Foot Orthosis (KAFO) is a long leg brace that supports the knee, ankle, and foot. It is prescribed for patients with significant muscle weakness, paralysis, or instability in the lower limb. KAFOs help users stand and walk safely while preventing knee buckling.

M

Microprocessor Knee

A microprocessor-controlled knee uses sensors and onboard computing to adjust resistance in real time during walking. These advanced prosthetic knees enhance stability on stairs, slopes, and uneven terrain. Popular models include the C-Leg, Genium, and Ottobock Kenevo systems.

Myoelectric Prosthesis

A myoelectric prosthesis is a powered artificial limb controlled by electrical signals generated by the user's muscles. Sensors placed on the skin detect muscle contractions and translate them into hand or arm movements. These devices offer more natural function compared to traditional body-powered prosthetics.

P

Plantar Fasciitis Orthotics

Plantar fasciitis orthotics are insoles designed to support the arch and reduce strain on the plantar fascia ligament. They typically feature deep heel cups, arch support, and shock-absorbing materials to relieve heel pain. Custom versions are recommended for severe or chronic cases unresponsive to over-the-counter options.

Prosthetic Liner

A prosthetic liner is a soft sleeve worn over the residual limb to cushion it inside the socket. Liners are typically made from silicone, urethane, or gel materials and help reduce friction, absorb shock, and provide suspension. Choosing the right liner improves comfort and skin health.

Prosthetic Socket

The socket is the custom-fitted component of a prosthesis that connects the residual limb to the device. Proper socket design is essential for comfort, suspension, and weight distribution during movement. Materials commonly include thermoplastics, carbon fiber laminates, and silicone liners.

Prosthetist Orthotist

A certified prosthetist orthotist (CPO) is a healthcare professional trained to design, fit, and manufacture prosthetic limbs and orthotic braces. They work with physicians and therapists to create devices tailored to each patient's anatomy and lifestyle. Certification requires advanced education and clinical residency.

R

Residual Limb

The residual limb, sometimes called a stump, is the remaining portion of an amputated arm or leg. Its shape, length, and tissue health directly influence prosthetic fit and function. Proper care, wrapping, and shrinker use help prepare the limb for prosthetic wear.

S

Scoliosis Brace

A scoliosis brace, such as a Boston or Rigo-Cheneau brace, is a custom orthosis that helps prevent the progression of spinal curvature in growing children and adolescents. The brace is worn for prescribed daily hours to apply corrective forces. Early intervention can reduce the need for surgery.

Suspension Sleeve

A suspension sleeve is an elastic component that helps secure a prosthesis to the residual limb by creating suction or friction. Often made of neoprene or silicone, sleeves prevent the prosthesis from slipping during activity. They are commonly used with pin-lock or vacuum suspension systems.

T

Transfemoral Prosthesis

A transfemoral prosthesis replaces a leg amputated above the knee, incorporating a socket, knee joint, pylon, and foot. These devices often include microprocessor-controlled knees that adjust to walking speed and terrain. Proper alignment and socket fit are critical for stability and gait efficiency.

Transtibial Prosthesis

A transtibial prosthesis is an artificial limb designed for individuals who have undergone a below-the-knee amputation. It typically includes a socket, pylon, and prosthetic foot to restore walking function and balance. Modern designs use lightweight materials like carbon fiber for improved mobility and comfort.