A trial fit is your first real look at how a new device feels on your hand. It is a calm, step-by-step visit where we try a test version of your prosthesis, check the comfort, see how it moves, and learn what you want it to do in daily life. You sit, breathe, and tell us what feels right and what does not. We listen. We make small changes on the spot. We note bigger changes for the next visit. Nothing is rushed.
If you have a partial hand difference, your path is not the same as anyone else’s. Your limb shape, skin, strength, and goals are unique. A trial fit respects that. It helps you and your clinician see how a socket or custom glove supports your limb. It also shows how a bionic hand, a body-powered finger, or a hybrid setup might work for you. The result is simple: you walk out knowing where you stand, what will happen next, and how close you are to a device that feels like your own.
At RoboBionics, we keep this process clear, kind, and affordable. Our team explains each step in simple words, lets you try real tasks, and adjusts the fit with care. The aim is not just a device that works. It is comfort, control, and confidence—day after day.
What a trial fit really is
A calm, guided test
A trial fit is a quiet, structured test drive of your future hand, done in a safe clinic setting with a trained prosthetist by your side. You try a test version of your device while we observe comfort, motion, and control in small, steady steps. At every stage you describe what you feel, and we make immediate adjustments so the fit improves as the session progresses.
Why partial hand users benefit
Partial hand users have many different limb shapes and movement patterns, so a single solution rarely works for everyone. You may have one missing finger, several missing digits, or a shortened palm with delicate skin or old scars. The trial fit lets us match the device to your exact limb features, so you receive a design that respects your body and your daily routine.
The goal for the day
The goal of a trial fit is not to deliver the final device on the first visit. The goal is to leave you with clear answers about comfort, control, and the next steps in your journey. By the end of the session you should know what works, what needs refinement, and how close you are to a dependable device that feels like a natural part of you.
Who qualifies for a trial fit
Common limb patterns we see
People come to us with many patterns of partial hand difference, and nearly all can benefit from a structured trial. Some have a full palm and missing fingers, while others have a shorter palm with less soft tissue and more sensitive bony areas. During the trial we study contact points, range of motion, and available muscle signal so we can choose components that support your unique anatomy.
Age, work, and lifestyle factors
Your age, work tasks, and hobbies shape the trial plan, because a device must fit your life, not the other way around. A college student who types and handles books will need a different approach than a factory worker who lifts tools, and an active parent may need even broader grip options. We tailor the activities we test so they reflect what you do from morning to night.
Medical and healing status
A good trial fit begins with stable skin, a calm scar line, and swelling that is under control most days. If you have pain, hypersensitivity, or signs of a neuroma, we want to know before we begin, so we can protect those areas and adjust the sequence of tests. Your comfort and safety lead the process, and we only move forward at a pace your limb can handle.
How to prepare before the visit
Simple things to bring
Please bring any older device, splint, or brace you still use, along with medical notes or scans if you have them. Wear clothing similar to what you use at work or at home, because real sleeves, cuffs, and pockets affect how a device moves in the world. These small details help us test real tasks without guesswork.
Skin care the day before
Gently wash and dry your limb the night before the trial, and avoid heavy lotions or oils on the morning of the visit, since they can make sensors slip. If you tend to sweat, carry a clean towel or an extra liner so we can keep the skin dry during testing. Clean, dry skin helps us read pressure points accurately and protects you from irritation.
Set your goals in plain words
Write three simple goals for the new hand, using everyday tasks you care about. Examples include holding a steel glass, unlocking your phone, typing a short email, or carrying a small grocery bag. Clear goals give the session a shared focus and guide the design choices we make together.
What happens when you arrive
A warm welcome and a check-in
When you arrive, we begin with a friendly check-in to confirm your medical history and note any skin areas we must protect. We take key measurements of your limb and discuss your goals in simple, direct language. Then we outline the plan for the session so you know exactly what will happen and why each step matters.
Consent and expectations
We walk you through the test plan and explain what each step will feel like before we start. You can pause or stop the session at any time and we will respond immediately. Your comfort, consent, and sense of control are more important than any timeline, and they set the tone for the entire visit.
A quick tour of devices
Before testing, we give you a brief tour of options suitable for partial hand users, including passive aids, body-powered fingers, hybrid builds, and bionic systems. You can touch the devices, feel their weight, and see how they move. This early exposure helps you imagine how each option would work in your daily life.
The first look at the test socket
Why a test socket matters
The test socket is a clear, sturdy shell that shows how your limb sits inside the device and how forces spread across your skin. By observing contact while you move, we can find pressure points that a simple visual check would miss. The test socket is the foundation of a safe, lasting fit, and it allows quick tweaks on the spot.
How the test socket is made
We build the test socket from a scan or a cast of your limb, smoothing and shaping the model to protect sensitive areas. The clear shell is easy to mark, heat, and trim, which means we can fine-tune edges and pads during the session. This flexibility saves time and helps us zero in on a comfortable shape faster.
Trying it on safely
You slide into the test socket while seated, and we support the limb so you feel secure. We check contact at the palm, sides, and back while you move slowly, and we mark any red areas that do not fade quickly. We add soft pads or adjust trim lines, and then we repeat the check until the fit feels steady and kind to your skin.
Suspension and stability
Getting a secure hold
A secure device should feel snug without pinching and should not rotate when you turn your forearm or reach for an object. We test pull, push, twist, and grip motions in a calm sequence so we can see how the socket behaves. Stable suspension reduces skin stress, prevents slip, and supports confident control.
Options for suspension
Depending on your limb, we may use gentle suction for even contact or a soft liner that cushions bony areas and helps with donning. Some users benefit from a custom sleeve or a light strap, while others prefer a hybrid system that blends methods for comfort and stability. We choose the approach that delivers secure support with the least effort.
Testing movement under load
We add light weights and simple tasks to test stability in real-world conditions. You reach for a cup, carry a bottle, and twist a jar lid while we observe how the socket handles torque and shear. If we notice wobble or drift, we correct it immediately and repeat the task to confirm the improvement.
Myoelectric signals and control, explained simply
What myoelectric means
When you move your forearm muscles, they create tiny electrical signals that travel through soft tissue. Surface sensors can pick up these signals and send them to a controller inside a bionic device. The device then opens, closes, or changes grip based on your intent, which makes the experience feel intuitive after a short period of practice.
Finding your best signal sites
We place small sensors on different muscle spots and ask you to flex gently while we watch a signal graph on the screen. Our aim is to find the cleanest sites that give a strong signal with the least effort, so you do not have to strain to control the hand. Good sites create smooth, reliable motion and reduce fatigue.
Training the pattern
We begin with slow open-and-close movements, rest as needed, and add speed only when the signal looks steady. Short breaks keep the muscles fresh, and simple drills help you develop a calm, repeatable rhythm. By the end of this stage you should feel in control without fighting the device.
The Grippy family for partial hand users
Grippy Bionic Hand overview
Grippy is our lightweight, battery-powered bionic hand designed to read your muscle signals and respond quickly to your intent. It is built to be precise, easy to learn, and comfortable for long days. We tune the device for everyday Indian tasks, so you can move through life with less effort and more confidence.
Sense of Touch in plain words
Our Sense of Touch technology gives you gentle haptic feedback that tells you how firmly you are holding an object. The soft buzz acts like a quiet guide, helping you avoid crushing delicate items or dropping smooth surfaces. With practice, this feedback becomes second nature and makes your grip feel more natural.
Options for hybrid and mechanical builds
Not every user needs or wants a full bionic setup, and many do well with mechanical fingers or a hybrid design. We can combine a powered thumb with passive fingers, or use durable body-powered components for specific tasks. Your goals, budget, and comfort decide the path, and we build a plan that respects all three.
What you will try during the session
Everyday tasks first
We start with everyday tasks that reveal fit and control in a natural way. You pick up a steel glass, hold a ceramic cup, unlock your phone, and press common buttons you use at home and work. Each task shows us how the socket loads your skin, how the device responds to your signals, and where small changes can make a big difference.
Fine tasks next
Next we test finer movements that need precision and gentle force. You lift a coin, hold a key, sign your name, and type a short sentence while we watch for accuracy, speed, and strain. If any task feels awkward or tiring, we adjust the settings or the physical fit and try again until the motion feels calm and repeatable.
Safer testing for force
Once control looks steady, we test stronger grips with added padding to protect the limb and the device. You carry a small grocery bag and rotate a jar lid slowly while we monitor torque on the socket. We stop at the first sign of pain or numbness and correct the cause so you stay safe while building confidence.
Comfort checks that matter
Pressure mapping by feel
Your feedback guides our pressure checks as much as our eyes and tools. We ask where you feel tightness or heat, and we look for red marks that last longer than a few minutes after you remove the socket. We add pads, adjust trim lines, or change liner thickness, and then we retest to confirm the change worked.
Heat and sweat control
Many users feel warm inside a socket, especially during longer tests or on humid days. We try breathable liners, create small vent paths where possible, and schedule short breaks so the skin can cool. These simple steps protect the skin, keep signals stable, and improve day-to-day comfort.
Skin textures and scars
Scar tissue and thin skin need special care because they do not like shear or sharp edges. We use gentle contours to spread load and teach small movement habits that reduce rubbing during tasks. Protecting your skin is a daily goal, not a one-time event, and it shapes every design choice we make.
Safety and risk reduction
Stop signals during the fit
Together we set a simple pause word that you can use the moment something feels wrong. When you say it, we stop, remove the device, and reset the plan without hesitation. This shared control keeps you safe and builds trust during the session.
Home safety habits
When you practice at home, begin new tasks in a seated position and clear the area of hot liquids or sharp objects. Use a non-slip mat on smooth surfaces and place heavy items within easy reach so you do not have to twist. Small habits like these prevent slips, protect your skin, and help you learn faster.
When to call us
Please call if you feel sharp pain, swelling, numbness, or a sudden change in how the device holds your limb. Reach out if the battery, signal, or grip behavior feels different for more than a day. We will guide you promptly so minor issues do not become major setbacks.
The adjustment cycle
Small changes right away
Many useful improvements happen immediately during the trial. We add soft pads to the socket walls, smooth or trim edges that touch a fold in the skin, and fine-tune sensor positions to boost signal quality. These quick steps often deliver instant relief and make control feel smoother.
Bigger changes with new parts
Sometimes we discover shape changes or component needs that require a new test socket or a different part. In those cases we schedule a rapid follow-up to remold the fit and adjust sizes, so you do not feel stuck. The aim is a stable, repeatable fit that you can trust in daily life.
Documenting what works
We write down every change we make, take photos of key areas, and list the tasks you could perform with ease. This record follows you through the build process and helps us recreate the comfort and function we achieved during the trial. Good notes save time and prevent guesswork.
Training starts at the trial fit
Warm-up and cool-down
We teach a short forearm warm-up that takes about two minutes and prepares the muscles for steady signals. At the end of testing we guide a brief cool-down so your arm feels relaxed rather than overworked. These simple routines support comfort and reduce fatigue as you practice.
Signal practice you can keep
We set up a basic open–relax–close drill that you can repeat at home without strain. You start with slow, even motions and count your breaths so the pattern feels calm and consistent. Ten gentle cycles twice a day is enough to build reliable control in the early weeks.
Task ladders for skill
Together we create a task ladder that moves from easy to hard in small steps, and you only progress when the current step feels safe and smooth. This steady approach turns progress into a series of small, certain wins. Over time you will notice that tasks which once felt complex now feel natural.
How we judge success on day one
Fit and comfort markers
By the end of the trial, there should be no harsh pressure at bony spots and no painful rubbing when you rotate or flex. Any red marks should fade within minutes of removing the socket, and you should feel supported rather than squeezed. These simple markers tell us we are on the right track.
Control and function markers
You should be able to open and close on cue without hesitation, hold a cup and a phone without fear of dropping them, and place a coin with reasonable accuracy. Your shoulder and neck should not work harder to compensate for poor control. When these markers are present, training becomes easier and more enjoyable.
Confidence and clarity markers
You should be able to explain your care plan in your own words and know exactly what to do if a spot becomes sore. You should also know the next visit date, the purpose of that visit, and what you will practice at home. Clarity breeds confidence, and confidence drives consistent use.
What happens after the trial fit
The build decisions
Once the trial fit gives us a clear direction, we confirm the device type that suits your needs, including the liner, socket style, and finish. We also choose the control method that felt best during testing, whether it is myoelectric, mechanical, or a hybrid arrangement. Every decision connects back to your goals and budget.
The time plan
We share a timeline that shows each step from final measurements to delivery and training, using plain dates and simple milestones. We also explain what might speed up or slow down the process, such as skin recovery or component lead times. This honest plan keeps you informed and reduces stress.
The cost in simple terms
We explain total costs and payment options in clear, straightforward language, and we discuss any insurance or aid that may help. We also outline service, spare parts, and possible upgrades, so there are no surprises later. Transparency lets you plan with confidence and focus on your progress.
Budget, access, and value
Why affordability matters
Advanced prosthetics should not be out of reach, and cost should never block daily independence. Our builds focus on real-world value, with careful design and local service that lower lifetime costs without cutting care. You pay for results that last, not just for features on a brochure.
Made in India advantage
Grippy is designed and built largely in India, which helps keep prices fair and service fast. It also means spare parts are easier to obtain and maintenance visits are simpler to arrange. You are not left waiting for overseas shipments when you need help quickly.
Support close to home
We partner with prosthetic centers across India so you can train and follow up close to where you live. Local support reduces travel time, lowers costs, and keeps your care consistent. Your device should fit your life, and that includes easy access to service.
Family and caregiver role
How to help on day one
A family member or friend can watch and learn the routine during the trial fit, which helps at home in the first few weeks. They can look for early signs of pressure, assist with daily care, and help with charging or cleaning. Calm support makes practice smoother and safer.
Building shared habits
Set regular times for practice and rest, and keep a small care kit with wipes, a soft towel, and spare liners by the door. Plan weekly check-ins with our team, especially during the early phase, so questions never pile up. Shared habits create steady progress without burnout.
Encouragement that works
Encourage effort as much as results, and celebrate small wins like tying a simple knot or carrying a cup without thinking about it. Remind each other to take short breaks before fatigue sets in. A kind word can keep motivation alive on long days.
Work and school readiness
Planning the return
We map the first tasks you will face at work or school and build practice around those moves, starting with slower, safer versions. If you want, we can talk to your employer or teacher to plan reasonable adjustments. A clear plan reduces surprises and builds confidence before you return.
Tools and setup changes
Simple changes in your environment can reduce strain and improve control from day one. A non-slip mat can make food prep safer, a mug with a comfortable handle may be easier to learn with, and a keyboard with clearer keys can help during early typing. Small upgrades often bring big comfort.
Pacing and breaks
Use a steady rhythm such as working for twenty minutes and resting for two, especially in the first month. During breaks, shake out your arm gently, breathe, and reset your posture. Regular pauses prevent fatigue, protect the skin, and keep the day enjoyable.
Sports, play, and hobbies
Safe starts
When you return to sports or hobbies, begin with low force and slow movements so your limb and device get used to the load. Choose soft balls or lighter gear and increase intensity gradually. Listen to your limb, and stop before pain begins rather than after it has taken hold.
Smart gear choices
Protective gloves, simple grip aids, or soft sleeves can improve control and protect the device during practice. We guide you on gear that fits your sport and your device so you can move confidently. The right tools can make activity feel fun again.
Building back joy
Choose the hobby you miss most and create a gentle path back to it with clear steps and pictures of your progress. Track what felt good and what needs work, and adjust the plan as you grow. Joy is a powerful teacher, and it keeps practice fresh and hopeful.
Caring for skin and soft tissue
Daily checks
Each evening, check the skin using a mirror and good light, paying attention to color, temperature, and any new marks. Wash with mild soap, rinse thoroughly, and dry completely before bed. Small acts of care today protect your skin for years.
Hot spots and what to do
If a hot spot appears, rest the area and use a cool cloth for a few minutes, then note the task and time that triggered it. Share this note with us so we can adjust pads, trim lines, or movement habits. Early action prevents bigger problems later.
Sweat and hygiene
If you sweat a lot, change liners as needed and wash them with mild soap before air-drying out of direct sun. Keep the socket clean and scent-free, and avoid powders that can cake on sensors. Good hygiene keeps skin healthy and signals consistent.
Battery, charging, and reliability
Simple charging habits
Charge the device at the same time each night with the supplied charger, and keep the port clean and dry. A steady routine ensures the hand is ready each morning, especially on busy days. Consistency is the easiest path to reliability.
Power checks before you leave home
Before long tasks, glance at the battery level and carry a cable if your day will be extended. Plan heavy activities earlier when the battery is high and your arm is fresh. Over time this becomes automatic and keeps your day smooth.
What to do if power runs low
If the battery dips, switch to lighter tasks or rest while you recharge, rather than pushing through with force. Call us if the power behavior changes for more than a day, because small issues are easier to fix early. Your peace of mind matters as much as performance.
Warranty, service, and upgrades
Your warranty in plain words
We explain what the warranty covers, how long it lasts, and how to claim service quickly. Our network keeps common spares ready so repairs do not stall your routine. A strong warranty is part of your confidence in the device.
When a service visit helps
If the fit changes, a part loosens, or control feels less stable, a short service visit can restore comfort and performance. Regular check-ups are like health checks for your device and catch issues before they affect your day. Small tune-ups keep everything running smoothly.
Upgrades when you are ready
As your skills grow, you may want additional grip modes, stronger components, or new covers. We plan upgrades around your goals and budget so growth remains steady and affordable. Your device should evolve with you, not hold you back.
Special notes for kids and teens
Gentle growth planning
Children’s limbs change as they grow, so we design sockets that can adapt and we schedule more frequent checks. Comfort, fun, and easy routines take priority, because happy practice builds lasting habits. The goal is steady progress without pressure.
School life made easier
We train for writing, art, and play, and we can speak with teachers if you would like support at school. Together we plan safe games and classroom tasks that match the device. School should feel open and welcoming, not limited by equipment.
Confidence and friendships
We coach children to talk about their device in simple, friendly words so peers learn to respond with respect. Clear care steps help kids feel in charge of their routine. Confidence is contagious, and it grows with each kind interaction.
Special notes for seniors
Respect for sensitive skin
Older skin can bruise or tear easily, so we use softer interfaces, longer breaks, and gentle testing. We avoid sudden force and watch closely for early signs of irritation. Comfort guides every decision we make.
Simple routines
We write care steps in large, clear text and set reminder alarms for charging or cleaning if that helps. We add extra grip to common home items so tasks take less effort. Ease and safety keep daily life smooth and enjoyable.
Balance and safety
We watch for shoulder or back strain and teach whole-body posture for common tasks. At home we suggest clearing walkways and keeping floors dry to reduce slips. Safety is dignity in action, and we guard it carefully.
Your role in shaping the final fit
Speak up early and often
Your voice is the most important tool we have, so please share what feels right and what feels off at every step. There are no wrong comments during a trial fit, only useful information. Each detail you provide helps us shape a better device for you.
Try, rest, and try again
Short trials reveal what works, and short rests protect your skin and muscles so you can try again with energy. This cycle of test and reset creates reliable progress without overloading your limb. A perfect fit is built through steady, thoughtful repetition.
Keep a simple journal
Write down the tasks you tried, how they felt, and how long any marks lasted, then bring those notes to your next visit. Real-life data from your day guides our craft more than any lab test can. Together we turn those notes into precise improvements.
What makes a RoboBionics trial fit different
Patient-first design
We keep the clinic calm and unhurried, speak in simple words, and listen more than we talk. We cut jargon and focus on the actions that matter in your life. You should feel seen, heard, and respected from the first minute to the last.
Indian context, real tasks
We test with steel plates, tiffins, water bottles, spice jars, pressure-cooker knobs, bus rails, and office desks, because these are the objects you handle every day. Practicing with real items creates real confidence. Your world sets the standard for our fit.
Affordable excellence
We build high-tech solutions with local strength so you receive advanced function at a fair price and fast service when you need it. We do not cut quality to cut cost; we design smarter to deliver value. Care and affordability can live together, and they do here.
A simple path to your next steps
Book your demo
If you have not tried a trial fit yet, this is the easiest place to begin. Book a demo, carry your questions, and arrive with three simple goals you care about. We will guide the rest with patience and skill.
Arrive with hope
Come as you are, and we will meet you with clear steps and a kind plan. A good fit is a team effort that grows from honest feedback and careful testing. Your life is the blueprint we follow.
Leave with clarity
You will leave knowing what comes next, what to practice at home, and how to reach us if anything feels off. You will also have a timeline you can trust and a device plan that matches your goals. Our promise is simple: we will walk this path with you, step by step.
Conclusion
What to remember
A trial fit is a calm, focused way to see how a device feels on your hand and in your life.
You learn what works, what needs adjustment, and how to practice safely at home.
Comfort, control, and clarity guide every step so your final device feels natural and dependable.
Your next step
Write three simple goals you care about, gather any past reports or splints, and book a demo.
Come ready to try everyday tasks, share honest feedback, and take short breaks as needed.
This small start builds a clear path to a secure, comfortable fit.
We are here for you
Our team listens, adjusts, and supports you long after the first visit.
Service, training, and upgrades stay close to home and within reach.
When you are ready, schedule your trial fit and take the first confident step forward.