Jaipur Foot
A project of Jaipur Limb Campaign, UK & Mobility India Supported by Community Fund, UK
THE JAIPUR LIMB CAMPAIGN-UK
Jaipur Foot
This manual has been developed to be used as a guide along with the video to impart knowledge on fabricating a good quality Jaipur Foot. The manual has to be used with the accompanying video, which would enhance the quality and standardisation of Jaipur Foot the Foot which is the most popular in India.
For Jaipur Foot Video and Manual contact:
Jaipur Limb Campaign
Mobility India
404 Camden Road, London N7 0SJ UK Email:
[email protected]
1st & 1st A cross J.P. Nagar 2nd Phase Bangalore 560 078, India Email:
[email protected]
Introduction With the rising number of amputees all over the world, the demand for Jaipur Foot has increased tremendously. Other than India, the Jaipur Foot is currently being used in many countries like Sri Lanka, Bangladesh, Cambodia, Vietnam, Afghanistan, Mozambique etc. While the demand of foot is growing rapidly, the Indian Production Units are not capable enough for catering such a large growing demand.Therefore, there is a huge gap between the ever increasing demand and supplies. Until now, the process of manufacturing Jaipur foot has been taught by apprenticeship method only. Foot makers and Limb fitters from different parts of the world come to Indian town Jaipur to have short-term training in foot making or sometimes Indian technicians go overseas to train. Quality of such training and foot produced by the trainees is always a big issue. Often Jaipur Foot earns adverse criticism due to its poor quality.
Introduction The process is very simple but has small details missing, any of such details may reflect on the quality of the final product. All foot looks like Jaipur Foot but are not “Jaipur Foot” not even functionally - mainly due to fabrication fault. Besides optimum use of foot also depends on the knowledge and skills of the prosthetist who uses the Jaipur Foot in making of the prostheses. There are no reference literatures or audiovisuals available on how to make Jaipur Foot. This video and manual with proper training will help the trainees to learn to produce better quality of Jaipur Foot. The manual is a technical presentation of foot fabrication process aiming at the foot makers mainly to serve as reference book and help in quality control. It clearly describes the various stages of Jaipur Foot making as well as the material specification, equipments and tools used in the process.
Space at the bottom of following pages is for the trainee to take note in their own language. Seeing the demand, attempt will be made to translate it in other languages.
What is Jaipur Foot? In technical terms, Jaipur Foot is an improved version of a conventional SACH (Solid Ankle Cushion Heel) foot rather to say a dynamic foot with shorter/flexible keel. It is basically a soft multi axial foot, meaning that it is flexible along multiple axes. The greatest advantage of Jaipur foot over SACH foot is that it allows all natural movement of the foot including Dorsiflexion movement and looks like a natural foot. Jaipur foot means a glimmer of hope for millions who have paused in their journey due to amputation and helps them to take - A Step forward Every Day.
Introduction Structural Components of Jaipur Foot:
Carriage Bolt Ankle Block External Covering Heel Block Forefoot Block Black Tyre Cord Toes
Components of of Jaipur Jaipur Foot Foot Components
Components of Jaipur Foot 1. Ankle Block 1. Wooden Keel for Ankle Region It is made out of laminated layers of wooden block that provides anchorage to carriage bolt (10 mm) made of steel with thread on top. Carriage bolt
Upright position Opposite Layers of wood
Nails to fix carriage bolt
Flat Position Groove for the head of the bolt Flat head upside down
Components of Jaipur Foot 1. Ankle Block Short Wooden keel of Jaipur Foot Provides dorsiflexion and planter flexion movement. The ankle block has layers of wooden pieces glued together with grains in different directions. It holds the prosthesis on top of the foot. Bolt has to be 900or at right angle. Advantages: 1. Greater strength in comparison to a normal block of similar size. 2. Light weight 3. It prevents splitting because of carriage bolt and good bondage.
Grains in opposite direction
Components of Jaipur Foot 2. The Hindfoot Region (Heel Block ) The hind foot region consists of a block of Microcellular Rubber (MCR) protected by strong rubber shell and tyre cord. The MCR block is capable of the following: A. Deflection, torsion or other movements associated with squatting or walking on uneven surfaces. B. Provides closer to normal gait to the user. C. Absorb shocks while landing on heel during walking. D. It holds the wooden ankle block and MCR forefoot together Ankle Block
Heel Block Forefoot Block
Top surface
Front surface
Components of jaipur foot 3. The Forefoot Region & Toes: The forefoot region is made of MCR rubber which is stiffer than that of the heel block. This block is also protected by hard rubber and tyre cord. It allows the natural movement of foot. It holds the hind foot and toes together. Forefoot block is usually composition of two/ three MCR slabs glued together. Forefoot block is first covered with tyre cord which prevents external shell from cracking and internal blocks from falling out. Later it gets covered with cushion rubber for protection and good cosmesis. Toes also made out of small pieces of MCR and then covered in same process.
Upper Surface
Components of Jaipur Foot 4. The external covering: The external covering is the main barrier between MCR blocks and environment. This covering is made of vulcanized rubber which provides the following benefits: A. Flexible and durable. B. Waterproof. C. Natural look.
Tools, Machinery & Materials
Tools, Machinery & Materials Tools & Machinery It is always better to have the following hand tools and equipment to make a good quality Jaipur Foot:
POP Powder Paint brush Vaseline Hand Saw
Tri square Spanner Scissor
Die
10 mm Carriage bolt Rasp file Tool to make groove
1. 2. 3. 4. 5. 6. 7. 8.
Hand shear to cut aluminum. Steel ruler or scale Bench vice Hammer Sharp knife Nylon paint brush Scissors Spanners to close and open the die.
Tools, Machinery & Materials Tools & Machinery 9. Container or bowl for POP paste 10. Tri-square 11. Sketch pen or lead pencils 12. Scraping tool, this can be made out of 2mm thick mild steel sheet with tooth of 3mm 13. Wood saw 14. Wooden chisel 15. Wooden file (rough & smooth) 16. Bench grinder 17. Drill Machine 18. Autoclave (steriliser) 19. Band Saw (optional)
Autoclave Drill machine
Safety gadgets Bench Grinder
Tools, Machinery & Materials Materials: 1. Vaseline or any vegetable oil. 2. Aluminum sheet or cardboard 3. Wooden plank of 10 cm wide. 4. White adhesive or Fevicol. 5. Carriage bolt (10mm diameter) 6. POP - 2kg (for each mould) 7. MCR sheet shore A35 & A45. 8. Toluene or any other cleaning 9. Rubber adhesive solution. 10. Vulcanizing cement 11. Black Cushion compound.(BCC) 12. Red Cushion Compound(RCC) 13. Black Tread compound.(BTC) 14. Tyre cord (nylon)
Tools, Machinery & Materials Selection & Storage of Material: Uncured rubber is soft and becomes brittle in very cold weather and tears easily in moderate heat, so it is advised to store rubber in cool & dry place (22 -24 Celsius) not directly exposed to sun light. Rubber should be stuck together to check adherence equally & stretched to check the elasticity. The plastic film which covers the tyre cord and the cushion compound should not be removed prior to sticking it on. It is advised to use uncured rubber, within 6 months from date of manufacture. Rubber adhesive solution and vulcanising cement are petroleum based products. They dry fast, therefore their containers should be tightly shut when not in use.
Fridge to store uncured rubber
Tools, Machinery & Materials The Aluminium Die: The aluminum Jaipur Foot die is the most important tool for fabrication of Jaipur Foot without which one cannot make a Jaipur Foot. The die was developed with the help of local craftsman in Jaipur who were experienced in the art of statue making using the ancient technique of sand casting. The uniqueness about these dies is that they are made in all sizes and obviously for both right & left feet. Jaipur Foot can also be fashioned slightly narrower for woman's feet and for those who prefer to wear shoes or sandals.
3 piece Aluminium die with hinge
Tools, Machinery & Materials The Aluminium Die:
Two types of dies are currently used in manufacturing the Jaipur Foot, they are the three-pieces and four-pieces die. Three piece die (preferably with hinges at bottom) is preferred as it leaves less marks on the finished foot. At the time of buying new dies, one should check for a die that can be disassembled easily. It is better if the die has steady pins.The high quality finish of the die not only gives the Jaipur Foot its natural appearance but also enables the foot piece encased within it to be heated to high temperature so that all the rubber is fused together to achieve a very durable foot. 2 sides of hindfoot and ankle Forefoot
3 piece die without hinge
Base of whole foot
3 piece die with hinge
POP Pattern & Aluminium Template
POP Pattern & Aluminium Template POP Patterns: A Pattern is needed as a guide to make the blocks as replica. It will be used as reference for shaping of rubber & wooden blocks. Use a painting brush to apply some Vaseline on the inside wall of the die. This ensures easy removal of the POP block from the die at a later stage after the pattern making is complete. Make sure that the vaseline spreads all over the inside wall. Pour POP solution and keep the die aside for 24 hours to allow POP to set and become hard. Open the die carefully and remove the plaster mould from it.
Applying baseline inside the die
Pouring POP solution inside the die
Separation of die once POP sets well.
Required for POP setting
POP Pattern & Aluminium Template POP Patterns: Hold the mould against rotating working disc or any flat surface. Separate the toes by knife slowly & carefully. Once the toes are separated from mould, smoothen the edges with the help of rough rasp file or wire mesh.
Cutting of last 3 toes
Cutting of 2nd toe
Cutting of all the toes and smoothing the edge.
POP Pattern & Aluminium Template POP Patterns: Place the mould on flat surface. Mark front to back and side to side mid points. Join the respective midpoints as shown in figure below: C
B
A
D
Top of the ankle block
90o vertical line at ankle & heel
Joining 4 reference lines
POP Pattern & Aluminium Template POP Patterns: Repeat the previous process to mark a line through centre of heel on back side. Extend these lines all around the mould. Draw pencil lines parallel to both horizontal & vertical lines respectively at 10 mm apart. Draw 3mm deep grooves along the pencil lines marked in previous step with metal scrapper. The purpose of making groove along the pencil line is to create uniform gap of 3mm between die and mould. This gap will be filled by rubber to cover all the blocks used in making Jaipur foot. Once the scraping process is finished, you will observe grooves & ridges over mould surface. Smoothen the ridges using rough file so that the surface matches with grooves.The finished POP mould has uniform gap of 3 mm within the die.
Marking all around foot 10 mm apart
Marked Foot
Tool with 3 mm teeth to Smoothening ridges create 3 mm deep groove with rasp file
POP Pattern & Aluminium Template POP Patterns: Before moving to next step let us clear the concept of planes passing through foot. These planes will guide us to divide foot into three functional components. The foot is divided into three planes, Plane 1--- Sagittal plane (Left & Right) Plane 2--- Transverse plane (Up & Down) Plane 3--- Frontal plane (Front & Back)
Ankle
Sagittal 3 planes
Forefoot
Hindfoot
Foot in 3 parts
POP Pattern & Aluminium Template POP Patterns: After getting smooth mould, mark the two planes of the foot. Horizontal line around ankle represent transverse plane, it is joining area of ankle block & heel block. Vertical line in front of ankle represent frontal plane, it is joining area of heel block & forefoot block. Draw a horizontal line around the ankle passing through both the malleolis. This line represents the area where movement will take place while walking. Keep a L- angle (tri-square) as shown in figure and draw a vertical line passing through mid ankle points to both inner & outer side of mould.
Ankle
Hindfoot Vertical line at ankle
Joining vertical lines
Forefoot
Marking of 3 planes
POP Pattern & Aluminium Template POP Patterns: Cut three planes to divide the mould into three blocks like 3 plane with the help of hand saw. After cutting mould with hand saw we get three blocks. These are: 1. Ankle Block 2. Heel Block 3. Forefoot Block
POP Heel Block
POP Ankle Block POP Pattern in 3 pieces
POP Forefoot Block
POP Pattern & Aluminium Template Making Of Templates: Place the POP ankle block on an aluminium sheet, draw outlines of upper & lower ends and also respective midpoints. Join respective midpoints with axis lines. Cut along the outlines to form the template. Smoothen the edges with aluminium file. Top template of ankle block
Top of ankle block pattern
Marking of bottom template using the POP ankle block
Bottom template of ankle block
POP Pattern & Aluminium Template Making Of Templates: Check upper and lower templates with the POP Ankle block pattern. Make sure they match. Drill a hole in centre point of upper and lower template. Repeat the previous procedure to make the templates for heel and forefoot block. Top of ankle block
Bottom of ankle block and top of heel block
10 mm Drill at centre
Bottom of heel block Back of forefoot block and front of heel block
Bottom of forefoot block. 4
Different Stages of Fabrication
1. Shaping of Blocks 2. Assembling Blocks 3. Covering with rubber
4. Vulcanising
5. Finished Foot
Shaping of Blocks & Toes Ankle Block Take few wooden pieces of 10cm x 10cm and 10 mm thick. Stick 5 to 6 square pieces with fevicol according to height of POP ankle block. Take care that grains of two consecutive wooden planks should be in opposite direction. This gives extra strength to wooden blocks. Place the wooden block in carpenter vice or under any heavy object and leave for 12 hours for good bondage. Make sure that the wooden block is of same height as the POP block pattern.
Checking the height of wooden block with POP ankle block
Shaping of Blocks & Toes Ankle Block Keep the top template of ankle block over wooden block such that axis lines on template match with diagonal lines on block. Mark the out line of template on block. Draw diagonal lines on upper & lower surface of block. Drill a 10mm vertical hole at the intersecting point of diagonal lines to accommodate carriage bolt (M10). Shape the wooden block like the ankle block pattern with reference to top and bottom templates. Use hand saw to remove extra wood, once you get closer to the pattern, use wooden rasp file to get an exact shape & make the surface smooth. Keep POP pattern for reference. Wooden ankle block should be replica of POP pattern.
wooden ankle block replica/copy of POP ankle block pattern
Shaping of Blocks & Toes Ankle Block Use 10 mm drill from top to ensure space for carriage bolt and 8 mm drill to make 2.5 cm x 0.5 cm x 0.5 cm groove at bottom. You can also use wooden chisel for making the same groove. This groove. Will be used as counter sunk for head of bolt. Carriage bolt is an ordinary M10 long steel bolt but flattened head with two small drilled holes to fix nails. Length of the bolt depends on size of the die. It usually 50 mm longer than the height of ankle block.
10 mm drill on top
Carriage bolt with flattened head
Creating groove at bottom of ankle block using 8 mm drill bit
Shaping of Blocks & Toes Ankle Block Hammer carriage bolt into the hole to ensure that the head of the bolt sits perfectly in the slot. Fix the carriage bolt with two nails. This mechanism helps to prevent rotation of carriage bolt.
Fixing carriage bolt from bottom of ankle block.
Fixing nails
Shaping of Blocks & Toes Heel Block Take 2 or 2.5 cm thick MCR Sheet of A35 sore hardness (Softer sheet). Cut 10 cm wide several strips of soft MCR sheet with a saw after proper marking. Clean it nicely with toluene or any other cleaning agent before applying glue for better bonding.
10mm x 2/2.5 cm thick Cutting with sharp knife 3 layers of MCR blocks
Shaping of Blocks & Toes Heel Block Apply rubber solution/adhesive to both sides of strips which will be placed in between & to one side which will be on the top & bottom.
Making MCR surface rough with rasp file (pre-condition before gluing)
Applying rubber solution / addessive on both the surfaces.
Joining of 2 MCR strips Joining of 3 MCR strips
Shaping of Blocks & Toes Heel Block One can make a device as shown in the figure below to ensure that different layers of rubber sticks well. Keep the glued rubber blocks in between wooden planks which are to be little pressed inside a bench vice. Ensure that rubber block is not pressed too hard in that case it will lose its property. MCR strips joined together Wooden planks
2 bench vices 30 to 50 cm apart
Ordinary bench vice
Time required for bonding
Shaping of Blocks & Toes Heel Block Mark centre line on both faces of heel block using template. Draw outline of top & bottom template on respective faces. Make sure that centre line and axis lines marked on template are matching perfectly with rubber block.
Bottom of the heel block
Height as per size of POP pattern Back of the heel block
Top of the heel block
Front of the heel block
Shaping of Blocks & Toes Heel Block Cut the rubber block into shape of POP heel block pattern. Keep the POP heel block pattern for reference. Initially shape the block with knife. Keep the knife outwards and once rough shape is achieved use Rasp file to get a better finish. Top Bottom
Knife outwards
Shaping the heel block Finished MCRheel block
Shaping of Blocks & Toes Forefoot Block Repeat the previous procedure but here one should take MCR Sheet of A-45 sore hardness (harder than MCR used for heel). Cut the sheet into 10 cm wide strips.Clean it nicely with toluene or any other cleaning agent before applying glue for better bonding. Stick pieces together.
Layers of MCR strips usually 1 more strip than MCR heel block
Applying glue Joining the strips Cutting of block as per size of pattern
Shaping of Blocks & Toes Forefoot Block Once the adhesive/glue is dry, cut rubber blocks which are 1 ½ times of POP fore foot block measurement in all respects. Draw a diagonal line along side of rubber block as shown in figure. Cut the rubber block along the diagonal line to form 2 blocks of similar measurements. We can use these blocks to make two forefoot blocks thus save the material.
Cutting at 45o angle
2 MCR forefoot blocks out of 1 MCR block.
Shaping of Blocks & Toes Forefoot Block Place forefoot template and draw outlines on rubber block. Cut the rubber block with a sharp knife and shape it like POP forefoot block pattern, keep the POP pattern for reference, once the required shape is obtained smoothen the block with the help of rasp file.
Marking the bottom of forefoot block using template
Back of forefoot block (same template of front of heel block)
Use knife to shape like POP pattern
Use file to give final shape
Shaping of Blocks & Toes MCR TOES: Use waste pieces of MCR A-35 sore hardness (softer) to make toes of foot. Shape great toe and four other toes using knife and rasp files. Place all the toes in die and ensure correct Size.
Making of toes using a rasp file.
5 toes out of MCR as per die size
Assembling of Blocks & Toes Checking Of Mcr Blocks And Heel Block Inside The Die Place all the blocks & toes in die to ensure correct proportions, size and uniform gap of 3mm between die and blocks. In this step, you have to make sure that medial arch is correctly carved on heel block and forefoot block. Wooden ankle block with carriage bolt MCR heel block
MCR toes
MCR forefoot block
3 mm gap between blocks and inner wall of die.
Assembling of Blocks & Toes Assembling Of Blocks & Toes: First of all, use paintbrush to spread thick coat of vulcanising rubber cement all over the blocks and toes. Ensure uniform coating.
Applying thick coat over ankle
Coating over heel block Coating MCR forefoot block Coating over toes.
Assembling of Blocks & Toes
BCC Rubber Coating
Cut 3 cm wide strips of Black Cushion Compound (BCC). Tightly wind strips to cover all the blocks and toes individually. Make sure while wrapping that you are applying uniform pressure and there is uniform overlapping of BCC.
3 cm wide BCC Strip Wrapping around ankle block Wrapping around heel block
Wrapping around forefoot block
Assembling of Blocks & Toes Sole of Foot To make good sole of the Jaipur Foot, place the red (preferably cinnamon or colour nearer to natural colour of the foot) cushion compound sheet on metal die. Ensure plastic film is downwards; mark the outline of foot over Red Cushion Compound (RCC) Sheet with thumb pressure against edge of the die. Cut the sheet with a pair of scissors along the outline. This becomes the outer cover of the foot it is more for cosmetic reason. One should keep in mind RCC does not give strength, it adds weight unnecessarily if it is overused.
Sole of the foot using RCC sheet
Using thumb pressure to get the marking
RCC piece as per the size of the die.
Assembling of Blocks & Toes Sole of Foot Repeat the previous process with Black Tread Compound (BTC) sheet, but make sure that this time plastic film is on top. Trace the out line by pressing finger against edge of die over BTC sheet and cut the sheet along the impression. One can also use a template to cut the BTC rubber but in that case one should have several sizes of templates in stock. Marking on the BTC sheet using a template of whole foot.
Same as RCC piece
Assembling of Blocks & Toes Sole of Foot Place the Red Cushion Compound sheet like shoe insole over the bottom surface of die. A long strip (approximately 55cm) of tyre cord of 3.7 cm width needs to be placed on top of RCC sheet. Tyre cord is a reinforcement material. It is used to tie different components of foot together & provides extra strength to foot like different tendons and ligaments of natural foot.
1 Tyer cord strip ½ width of heel
BCC over RCC with a tyre cord in between
Assembling of Blocks & Toes Sole of Foot Stick another strip of tyre cord 50 cm by crosswise at mid-heel. Place the BTC foot pattern on top of the strips with the plastic film facing upward. The tyre cord strips are now sandwiched between the BTC and the RCC sole surface.Tear the tyre cord into five strips, one for each toe. These strips of tyre cord will be used to join each toe with forefoot block.
5 thin strips for 5 toes.
To hold heel block and ankle block together
Assembling of Blocks & Toes Assembling of Blocks
Take another 3.7 cm width tyre cord (preferably nylon not rayon) and join Forefoot and Heel Block as shown in the figure. Make sure two blocks should not be separable after tying. Use BCC to fill up the gap between blocks. Joining of forefoot & heel blocks with tyre cord.
Reinforcing and preparing the forefoot block to be joined with heel block
Filling the gap between 2 blocks with BCC to make 1
Assembling of Blocks & Toes Assembling of Blocks Place the foot block which is now a combination of heel block and forefoot block on top of the BTC sole surface. Place the ankle block over the heel block. Check whether alignment is correct from all directions and bolt is perpendicular to ground. The most important factor here is that the bolt has to be perpendicular to the ground. Joining of footblock and ankle block uisng tyre cord
Assembling of Blocks & Toes Assembling of Blocks Fill up the gap with BCC between ankle block and heel block. Place the toes at their respective place and attach all the components of foot firmly with tyre cord strips.
Filling up gap between ankle and foot block with BCC
Joining of toes with foot block using strips of tyre cord.
Assembling of Blocks & Toes Assembling of Blocks Pull the tyre cord from different sides and place one after another on top of the ankle block as shown in the figure. Ensure the bolt is also encircled with the tyre cord from different directions.
Joining foot block and ankle block
‘Y’ splitting the tyre cord to be fixed on two sides of carriage bolt.
‘Y’ splitting from ‘back’
Assembling of Blocks & Toes Assembling of Blocks Good wrapping of tyre cord only can ensure longer life of the foot but overuse of it will make the foot heavy. Tyre cord ties up different blocks like ankle block, heel block, forefoot block and toes like natural foot anatomy (Like Ligament and Tendons ). Close the die to ensure that build up is not too much.
All blocks tied together with tyre cord.
Checking with the die
Covering with Skin Cushion Compound Cosmeting Cover Cut 3cm wide strips of RCC or skin cushion compound & wrap tightly around blocks. Make sure that RCC is uniform all around and uniform pressure is applied while wrapping. Take care that no air bubbles are left while wrapping the rubber around blocks. Do not use it in excess to get better finish because that will make the foot heavy.
3 cm strip of RCC
Wrapping around ankle
RCC wrapping around the whole foot.
Covering with Skin Cushion Compound Cosmetic Cover Place the foot piece in die and close the die tightly. While closing the die, tighten all nuts and bolts uniformly. This process will apply equal pressure from all around. After closing tightly, leave the die for one hour.
RCC wrapping around the whole foot ready for vulcanisation
Checking with the die.
For adding pressure
Covering with Skin Cushion Compound Cosmetic Cover During this time rubber foot will be under pressure, which facilitates rubber to acquire inside shape of die. Open the die after one hour & inspect foot for any damage & air bubbles.
Closing of the die to add pressure
Opening the die after 1 hour
Covering with Skin Cushion Compound Cosmetic Cover After opening cut the extra skin with a sharp knife. If any bubbles are found, burst it with pointed screw driver or pointed edge of scissor. Fill all the cavities and uneven surface with skin cushion compound. Now Jaipur Foot is ready for vucanisation/cooking.
Unvulcanised foot after opening the die
Cutting of extra RCC rubber Checking the air bubbles Adding extra strip to fill the gap
Vulcanisation Vulcanising of Foot Replace the repaired foot piece in die and close the die tightly. Place the die in Autoclave. This process of heating the rubber foot with steam is known as Vulcanisation. During vulcanisation soft and uncured raw rubber becomes ready to use & durable.
Closing the die again Tightening the nuts & bolts Placing the die in autoclave for vulcansiation Closing the autoclave
For Cooling Vulcanisation Vulcanising of Foot Jaipur Foot is vulcanised in Autoclave under 23psi pressure of steam at 125 Celsius temperature. Leave the die for 20-30 minutes inside Autoclave for curing.
Ensuring proper closure of autoclave
Checking the pressure
In Autoclave
Vulcanisation Vulcanising of Foot Remove the die from autoclave and keep it for 12 hours in a cooler place for cooling. Do not open the die before it is fully cooled as this may cause air bubbles in rubber thus destroying the look, shape and strength of foot piece. Open the die and remove the foot piece slowly. While removing, do not damage the thread of the bolt.
Opening of die after vulcanisation Vulcanised Jaipur Foot Removing the foot from the die with care
Tool to prevent damage of the thread
Vulcanisation Vulcanising of Foot Trim extra rubber with a very sharp knife to have a better finish. While trimming make sure that the knife does not go deep because in that case it will expose black rubber underneath. Once it is trimmed Jaipur Foot is ready to be fitted with socket and socket extension to make a prosthesis.
Trimming extra rubber
Finished foot after trimming
Ready for use
Vulcanisation Vulcanising of Foot One can make Jaipur Foot with various types of attachment or bolt assembly to fit any kind of prosthetics technology. It is the most popular foot in India and it will remain so till better alternatives come but experience says it might take ages. So till then, let us go on making good quality Jaipur Foot that would help Persons who do not have a leg, to be in the society as an important active equal member. Checking whole surface and finish.
A step forward ……
Jaipur Foot
Preetam going through the daily chores
Relaxing with a cup of tea
The dream dream foot foot for for millions millions The
Annexure A
Materials and equipment suppliers in India Vulcanising cement 1. Diamond Rubber Industry Hansi, Harayana-125033 India
2.
M/s New Ashoka Batteries Agra Road, Jaipur Rajasthan, India
Black cushion compound ( unvalcanised rubber compound MRF code 7401203), Tyre cord ( rubberised rayon/ Nylon cord CRF 70x500; MRF code 7311400/7321400, Black tread compound MRF code 7403303 & Skin compound ( unvulcanised skin colour rubber compound)
1.
2.
Madras Rubber Factory Ltd(MRF) 826 Taraporetower Anna Road, Chennai- 600032 Tamil Nadu , India
Sundaram Industries Ltd. Rubber Factory (TVS) Post box number 6 Usilampatti Road,Kochadai Madurai-625016 Tamil Nadu - India Rubber Solution ( Dunlop Solution) 1. Dunlop India Ltd. 57B Mirza Ghalib Road Kolkatta, West Bengal India-700016
3.
Asia Rubber Mill Railway Road Gurgoan, Haryana- 122001, India
4.
Rajasthan Rubber Industries F-141 IP Industrial Area Kota- 324005 Rajasthan, India
Microcellular Rubber 1. Mahaveer Rubber Industries 48, Industrial Area Bais Godam, Jaipur Rajasthan- 302005, India
Drill Machine, Band Saw, Grinder etc. 1. Machine tools & traders NR Road, Bangalore, India 2.
3.
Polytech Mechanical Industries Ahmedabada, Gujarat India Batlibal & Company Pvt. Ltd V.B.,Gandhi Marg, Fort P.O. Box -190A Mumbai-400023, India
Aluminum Dies 1. Om Engineering Works A-12, Gayatri Nagar Sodala, Jaipur, India 2.
S.K. Engineering Works 54- Paras Ram nagar Dher ke Balaji Jaipur- Rajasthan, India
Auto Clave Machine 1. Time Surgicals Near Ajmer Pulia Hathoj, Jaipur, India 2.
Nat Steel Equipments Pvt. Ltd Mumbai, India
For any further assistance in training and procuring tools, machinery, material, Jaipur Foot, Dies Prosthetics/Orthotics components contact:
MOBILITY INDIA 1ST & 1ST A CROSS J.P. NAGAR 2ND PHASE BANGALORE 560 078, INDIA TEL: +91 (080) 649 2222 or 649 4444 EMAIL:
[email protected] Website: www.mobility-india.org
Thank you to all who assisted us to complete this manual, especially members of Jaipur Foot Production Unit of Mobility India.
