Erik Venini designed a 3D printed ankle brace to provide support for ankle sprains. Through iterative design and testing of multiple versions, improvements were made to width, strap placement, and comfort. The latest version fits nicely in shoes while providing targeted pressure. Further consultation and testing of materials is needed before widespread use. Venini hopes to continue designing braces and prosthetics to help improve patients' quality of life through their low-cost and customized nature enabled by 3D printing.
Clubfoot is a complex, congenital deformity of the foot. Its treatment technique with the most scientific evidence supporting its effectiveness is the Ponseti method. This method uses several plaster casts for its correction. We suggest that we can replace plaster casts with pre-simulated 3D printed cast for better and safer treatments. We also automated 3D modeling process from unedited mesh data with computational modeling.
A prosthetic is a device that replaces any missing human body part visibly and functionally. Reverse engineering is a field of engineering wherein a model and further a prototype can be generated by extracting information from previous design or available model using the advanced tools of CAD/CAM. This paper aims at exploring the needs and advantages of connecting the prosthetic industry with reverse engineering in a developing country like India for patients with lower limb amputations under the brimming concept of “Make in India”.
Clubfoot is a complex, congenital deformity of the foot. Its treatment technique with the most scientific evidence supporting its effectiveness is the Ponseti method. This method uses several plaster casts for its correction. We suggest that we can replace plaster casts with pre-simulated 3D printed cast for better and safer treatments. We also automated 3D modeling process from unedited mesh data with computational modeling.
A prosthetic is a device that replaces any missing human body part visibly and functionally. Reverse engineering is a field of engineering wherein a model and further a prototype can be generated by extracting information from previous design or available model using the advanced tools of CAD/CAM. This paper aims at exploring the needs and advantages of connecting the prosthetic industry with reverse engineering in a developing country like India for patients with lower limb amputations under the brimming concept of “Make in India”.
Sonal Gupta, 1 Year Residential Design Diplomadezyneecole
This Project Has Been Developed By the Student of Dezyne E' cole College Doing Her Interior Design Studies One Year Residential Design Diploma Programm
www.dezyneecole.com
The latest Top 10 from the Rassed research program explore different ways in which 3D printing is currently being used across the world.
Anticipated to become a mainstream technology in the near future, these slides show that 3D printing is already having an impact - with more to innovations and benefits envisaged in the coming years.
Ergonomics Based Wheelchair Convertible Stretcher DesignTRANJAY CHANDEL
This Presentation covers an updated design wheel chair that can very easily convert into stretchers well as operation table depending upon need. The movement of a physically disabled person from one place to another during his/her unhealthy conditions becomes a tedious task. It is required to move the patient within the hospital campus for the basic necessities, physicians health check-up, medical tests etc.
Saloni Chandak ,1 Year Residential Design Diplomadezyneecole
This Project Has Been Developed By the Student of Dezyne E' cole College Doing Her Interior Design Studies One Year Residential Design Diploma Programm
www.dezyneecole.com
Design and Manufacturing of Pet Bottle DieIJMTST Journal
A bottle is a rigid container with a neck that is narrower than the body and a "mouth. Bottles are often made of glass, clay, plastic, aluminum or other impervious materials, and typically used to store liquids such as water, milk, soft drinks, ink, chemicals and etc. A device applied in the bottling line to seal the mouth of a bottle is termed an external bottle cap; the bottle has developed over millennia of use, with some of the earliest examples appearing in China, Phoenicia, Rome and Crete. Bottles are often recycled according to the SPI recycling code for the material. Some regions have a legally mandated deposit which is refunded after returning the bottle to the retailer. Blow molding process is pretty much comparable with injection molding but the only difference is that, in this case, heated liquid plastic vertically pours out of barrel-like pot into molten tubes. The vacuum part is created. Most bottles are formed with this type of molding. Hot plastic resin is combined with a pressurized gas to fill and press the mold cavity, forming a hollow part.
3D modeling is done by pro-engineer.
Design and Evaluation of Ankle Reconstructionijtsrd
Ankle reconstruction is a fairly new concept and is one of the popular treatment for ankle fractures and arthritis. Ankle reconstruction aims to offer a successful alternative to arthrodesis, the existing mainstay and gold standard surgical procedure for disabling ankle arthritis. The surgeon fits the talus bone of the upper foot and the tibia bone at the end of the lower leg with metal components made of cobalt chromium alloy with pure titanium where they comes in contact with bone. This project focuses on modelling and 3D printing of a prosthetic talocrural joint. The standard sizes of tibia which is the longer base of lower leg and talus being lower part of the ankle joint are observed and modelled accordingly by using CATIA with standard dimensions. The prototype is made with PLA plastic using an FDM Fused Deposition Modelling 3D printer. The analysis test carried on ANSYS by applying human weight on the tibial surface and physical tests are conducted on universal testing machine. The compressing force is applied on the prototype and observed till failure. Results obtained are compared for static position of the foot of both analytical and physical outcomes. A. Kranthi Kumar | B. Sai Krishna | B. Sai Ram | Mr. P. Naresh "Design and Evaluation of Ankle Reconstruction" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-4 | Issue-3 , April 2020, URL: https://www.ijtsrd.com/papers/ijtsrd30327.pdf Paper Url :https://www.ijtsrd.com/engineering/mechanical-engineering/30327/design-and-evaluation-of-ankle-reconstruction/a-kranthi-kumar
Industrail Design Portfolio 2020 Ryan MerrixRyanMerrix
Please take a look at my portfolio I am enthusiastic and driven design engineer graduate with diverse experience across projects lifecycles, including human-centred design, design for manufacture and assembly and project leadership. Working as part of many cross-disciplinary teams has led to teamwork, leadership, and an analytical mind to be able to tackle and solve problems.
Help me build an international 3D printing community. Come here weekly to check out the latest trends, stats, and samples in 3D printing. Comments are welcome!
Sonal Gupta, 1 Year Residential Design Diplomadezyneecole
This Project Has Been Developed By the Student of Dezyne E' cole College Doing Her Interior Design Studies One Year Residential Design Diploma Programm
www.dezyneecole.com
The latest Top 10 from the Rassed research program explore different ways in which 3D printing is currently being used across the world.
Anticipated to become a mainstream technology in the near future, these slides show that 3D printing is already having an impact - with more to innovations and benefits envisaged in the coming years.
Ergonomics Based Wheelchair Convertible Stretcher DesignTRANJAY CHANDEL
This Presentation covers an updated design wheel chair that can very easily convert into stretchers well as operation table depending upon need. The movement of a physically disabled person from one place to another during his/her unhealthy conditions becomes a tedious task. It is required to move the patient within the hospital campus for the basic necessities, physicians health check-up, medical tests etc.
Saloni Chandak ,1 Year Residential Design Diplomadezyneecole
This Project Has Been Developed By the Student of Dezyne E' cole College Doing Her Interior Design Studies One Year Residential Design Diploma Programm
www.dezyneecole.com
Design and Manufacturing of Pet Bottle DieIJMTST Journal
A bottle is a rigid container with a neck that is narrower than the body and a "mouth. Bottles are often made of glass, clay, plastic, aluminum or other impervious materials, and typically used to store liquids such as water, milk, soft drinks, ink, chemicals and etc. A device applied in the bottling line to seal the mouth of a bottle is termed an external bottle cap; the bottle has developed over millennia of use, with some of the earliest examples appearing in China, Phoenicia, Rome and Crete. Bottles are often recycled according to the SPI recycling code for the material. Some regions have a legally mandated deposit which is refunded after returning the bottle to the retailer. Blow molding process is pretty much comparable with injection molding but the only difference is that, in this case, heated liquid plastic vertically pours out of barrel-like pot into molten tubes. The vacuum part is created. Most bottles are formed with this type of molding. Hot plastic resin is combined with a pressurized gas to fill and press the mold cavity, forming a hollow part.
3D modeling is done by pro-engineer.
Design and Evaluation of Ankle Reconstructionijtsrd
Ankle reconstruction is a fairly new concept and is one of the popular treatment for ankle fractures and arthritis. Ankle reconstruction aims to offer a successful alternative to arthrodesis, the existing mainstay and gold standard surgical procedure for disabling ankle arthritis. The surgeon fits the talus bone of the upper foot and the tibia bone at the end of the lower leg with metal components made of cobalt chromium alloy with pure titanium where they comes in contact with bone. This project focuses on modelling and 3D printing of a prosthetic talocrural joint. The standard sizes of tibia which is the longer base of lower leg and talus being lower part of the ankle joint are observed and modelled accordingly by using CATIA with standard dimensions. The prototype is made with PLA plastic using an FDM Fused Deposition Modelling 3D printer. The analysis test carried on ANSYS by applying human weight on the tibial surface and physical tests are conducted on universal testing machine. The compressing force is applied on the prototype and observed till failure. Results obtained are compared for static position of the foot of both analytical and physical outcomes. A. Kranthi Kumar | B. Sai Krishna | B. Sai Ram | Mr. P. Naresh "Design and Evaluation of Ankle Reconstruction" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-4 | Issue-3 , April 2020, URL: https://www.ijtsrd.com/papers/ijtsrd30327.pdf Paper Url :https://www.ijtsrd.com/engineering/mechanical-engineering/30327/design-and-evaluation-of-ankle-reconstruction/a-kranthi-kumar
Industrail Design Portfolio 2020 Ryan MerrixRyanMerrix
Please take a look at my portfolio I am enthusiastic and driven design engineer graduate with diverse experience across projects lifecycles, including human-centred design, design for manufacture and assembly and project leadership. Working as part of many cross-disciplinary teams has led to teamwork, leadership, and an analytical mind to be able to tackle and solve problems.
Help me build an international 3D printing community. Come here weekly to check out the latest trends, stats, and samples in 3D printing. Comments are welcome!
1. Erik Venini MECHANICAL ENGINEERING
636 East 18th Ave, Vancouver, BC
erik.venini92@gmail.com - 1.604.500.5232
3D printing is widely recognized as a promising technology in many fields, however its biomedical
applications seem to be underestimated.
Traditional methods of manufacturing are much more efficient when it comes to producing large quantities
of the same product. Casting, molding and forming require large amounts of machineryand preparation, but
can produce virtually any shape in any material, replicated thousands of times. Additive manufacturing
(printing) requires only the printer and the 3D file to be printed, and is practically incapable of producingan
identical shape twice, which - when designing for the human body - is actually an advantage over
traditional methods.
As technologies such as 3D scanning and 3D modelling become faster and more intuitive, 3D printing is
the only manufacturing method flexible enough to produce individual parts suitable for dynamic human
shapes.
The Victoria Hand Project is an organization based at the University of Victoria that develops low cost, 3D
printed prosthetic hands for amputees in developing countries. The VHP currently has printing stations
operating in Guatemala and Nepal, and is able to print a custom fit prosthetic arm for much less than that of
traditional prosthetics.
Soon after expressing my interest to the VHP team, I was put in charge of designing a 3D printed ankle
brace for ankle sprains and added ankle support.
I began by researching existing ankle braces and orthopaedic supports, and discovered that the Air Cast
design is the most common solution for ankle sprains. Their simple design wraps around the ankle,
underneath the heel, preventing ankle inversion and eversion (rolling), while allowing some plantar flexion
and dorsiflexion so that the user can remain mobile.
Using 3D printed PLA plastic, I was able to create a simple design and use thermoforming (hot water
molding) to wrap the brace around the individual’s ankle, creating a much better fit.
2. Erik Venini MECHANICAL ENGINEERING
636 East 18th Ave, Vancouver, BC
erik.venini92@gmail.com - 1.604.500.5232
Figure 1: A flat Solidworks model of the ankle brace. Holes are designed into the brace to allow for
airflow, to save on material costs, and to better accommodate the fibula and medial malleolus (ankle
bones) when thermoforming.
571.33
105
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1 2
A
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B
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5 6
DRAWN
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Q.A
UNLESS OTHERWISE SPECIFIED:
DIMENSIONS ARE IN MILLIMETERS
SURFACE FINISH:
TOLERANCES:
LINEAR:
ANGULAR:
FINISH: DEBUR AND
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EDGES
NAME SIGNATURE DATE
MATERIAL:
DO NOT SCALE DRAWING REVISION
TITLE:
DWG NO.
SCALE:1:5 SHEET 1 OF 1
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ABS Plastic (3mm thick)
WEIGHT:
EV 11.04.16
ABS Printed Ankle Brace
3. Erik Venini MECHANICAL ENGINEERING
636 East 18th Ave, Vancouver, BC
erik.venini92@gmail.com - 1.604.500.5232
Figure 2: Version 1 of the ankle brace after thermoforming was applied. The thermoforming process
was as simple as setting the brace in hot water, then pressing and holding it around the ankle until it
solidified. Although the brace was molded around the ankle, there was still some discomfort while
standing.
4. Erik Venini MECHANICAL ENGINEERING
636 East 18th Ave, Vancouver, BC
erik.venini92@gmail.com - 1.604.500.5232
Figure 3: Second version of the ankle brace. To reduce discomfort noticed in the first design, the
second version was designed to have no material in contact with the ankle. This design would also
reduce material costs.
5. Erik Venini MECHANICAL ENGINEERING
636 East 18th Ave, Vancouver, BC
erik.venini92@gmail.com - 1.604.500.5232
Figure 4: Version 2 of the brace after printing. Printing supports and excess plastic have been removed.
Horizontal striations can be seen in the brace due to the printing orientation. Ideally, these striations
would be in line with the primary stress direction of the brace (vertical, in this case).
6. Erik Venini MECHANICAL ENGINEERING
636 East 18th Ave, Vancouver, BC
erik.venini92@gmail.com - 1.604.500.5232
Figure 5: The Version 2 brace after thermoforming. This design was more comfortable around the ankle,
however some dimensions needed to be widened. It was also noted that the straps in this design
should be lowered to apply force closer to the ankle. The top 20cm of the brace are unnecessary.
Figure 6: Version 3 of the brace before printing. In this version, the ankle space is widened, the brace is
shortened vertically, the straps are moved closer to the ankle, and sharp corners are smoothed out.
7. Erik Venini MECHANICAL ENGINEERING
636 East 18th Ave, Vancouver, BC
erik.venini92@gmail.com - 1.604.500.5232
Figure 7: Version 3 after printing, before thermoforming.
Figure 8: Ankle brace version 3 after forming to the ankle. This version is much more comfortable
due to enlarged ankle space, and provides more pressure to the affected area because of the lowered
strap positions. As seen above, the brace fits nicely into a low-top shoe.
The next steps are to optimize the shape around the ankle to improve comfort, and to improve strap
material and connection/adjustment methods.
8. Erik Venini MECHANICAL ENGINEERING
636 East 18th Ave, Vancouver, BC
erik.venini92@gmail.com - 1.604.500.5232
While I have made good progress towards a useful, comfortable, and cost effective ankle brace, there is
still much to do before the brace is ready for widespread use.
The next steps will be to consult an orthopaedic surgeon or orthotist to make sure the brace supports the
ankle in the most beneficial way. Straps must be chosen, and a thin foam layer may be added inside the
brace for more comfort. Alternate printing materials such as nylon will also be tested to increase strength
and flexibility.
After the completion of this project, I am excited to begin designing braces for wrists, arms, and full-limb
casts, as well as prosthetics!
This is a small project in a very promising field, and the idea of creating a product that directly impacts
someone’s quality of life is very exciting to me. As I take my Masters program at Simon Fraser Uniersity, I
intend to continue work for the Victoria Hand Project, and hope to start similar projects at SFU.