Nicolas Matthew Pranata's Portfolio

Nicolas Matthew Pranata

Portfolio

Koken Fixture - Noah Medical Internship

Koken Fixture

The koken fixture model is a testing fixture used for dry-run testing of the navigated bronchoscopy system, The Galaxy. For every test, the koken model is poured with ballistic gel and has to be CT scanned due to the unique configurations of each one. Therefore, a fixture is needed to allow users to use one generic CT scan for every model to make testing controlled, consistent, yet, reproducible.

Nicolas Matthew Pranata

Nicolas Matthew Pranata

Background Information

The koken fixture project is significant due to the unique product development process from ideation, prototyping then testing. Due to the urgent need for dry run testing results, the project deadline is 1.5 months with limited flexibility and room for error. This experience truly allowed me to test my adaptability and capabilities.

Procedure

Fill the bronchioles with plastic pellets to avoid gel getting in the model

Insert the koken model into a plastic container

Melt ballistic gel and pour it into the container until the model is covered

Do a CT (computerized tomography) scan to provide an initial reference picture

Perform navigated bronchoscopy in the koken gel model

Restrictions and Requirements

The koken testing fixture must meet strict guidelines due to the quality needed for FDA submissions, the guidelines are:

Design for reproducibility

Same position (height and alignment) for each reproducible fixture

Ensure the main bronchus are not blocked or deformed

Ensure the airways (bronchioles) are not in contact with the container

Durability for when the ballistic gel is poured over

Manufactured out of materials which would not cause artifacts in CT scan

Koken Fixture - Noah Medical Internship

The Koken Model

Note: Br from the main bronchus.

Trachea

Bronchioles

Main Bronchus

Baseplate given w th the mode

Pre-existing mounts

Nicolas Matthew Pranata

Design Thinking 'Iterative' Process

1st Iteration

Ge Koken

Fixture Mode (2 Fixtures in 3 months)

The systems and eng neer ng team want a fixture that a lows the ge koken mode to be reproduc b e so that they wou d only need to refer to a single CT scan for a l ge koken models produced resu ting in a more efficient process

Reproducibil ty Same alignment (height and pos tion)

No deformity in koken Model should have no contact with conta ner Durabil ty Suitable for CT Scan

Koken mounting fixture

1st teration:

Us ng a d g t zer the mount ocat ons re ative to each other are based on the orig nal koken mounting fixture (c rc ed n red p 4)

To ma nta n the natura posit on of the koken the angled obes are measured using an angle gauge and ad usted n the mode Mount ng f xtures were prototyped using 3D print ng and are plugged onto the baseplate t has an nter erence it w th ho es n the base each mount has a di ferent base shape to d fferentiate the locat ons

The base of the ixture is fastened to the conta ner base us ng screws Through tr a and error the height and pos tion of each mount were ad usted according y to avo d contact w th the conta ner

Drill guide for trachea

The dri gu de is used to make an ndent on the conta ner us ng a center punch and dr l t w th a dr gu de to expose the trachea ho e out of the conta ner a ow ng the scope to be nserted

Due to the shape of the container it does not a ow the dri gu de to be in contact w th t Therefore we des gned the dr l gu de for a l pped conta ner to have a reference po nt to the sides and handles of the container

2nd Iteration:

Due to the over apping bo l ng points the 3d pr nt f ament melted We rea zed that the baseplate made out of acryl c d dn t me t Therefore we dec ded to make the mounts out of acry c S nce we cannot change the base shapes the mounts were engraved to ident fy the r pos tions Addit onal y the laser cutt ng aser tends to def ect resu ting in a s anted cut with n the mater al Since t s an interference f t t s important to ident fy the top and bottom or entat on of the basep ate

It is mpossib e to rep cate the ocat on of the screws there ore the basep ate was made as a t ght f t w th the base of the conta ner and fastened w th g ue

It is mpossib e to aser cut the s anted obe ho der on the mounts

Therefore we had to cut the acry c at an ang e and attach the ho der rather than mak ng t one piece

Nicolas Matthew Pranata

Unlike the original mounting fixture the mounts are designed as a snap-fit which is perfect for the diameter of each obe. The trachea lobe is longer, therefore it is supported by two mounts.

Lobes angled downwards or upwards are accounted for The mounts are slanted accordingly to avoid deformation of the lobes.

Ballistic ge atin is me ted in an oven poured on top of the koken mount fixture then cured

Koken Model is tightly secured yet not deformed by the mounts

Plastic pellets are inserted into the bronchioles to avoid gel entering the koken mode

The baseplate is secured on the base. For extra measures it is glued to the container base

The dri l guide is designed to be mated with flat edge joints. To ensure that it is 90° custom brackets are used.

The hole is fitted for a center punch this will result in a precise indent location which wil then be dri led by a forstner bit with the diameter of the trachea.

Notice the koken mode ocation is measured precisely to avoid interference with the container.

Gel Koken Fixture

Koken Mount Fixture

Nicolas Matthew Pranata

Production Strategy

As a mechanica engineering intern at Noah Medica , another respons bi ity I had was n finding a suitable alternative material and production strategy for two of the r capita accessor es for the next vers on of the product I ead this project with the support of my two mentors

Current y, the first product is manufactured w th De rin and the second with Ultem However PMC (product marketing and cl nical team) be ieves that Delr n delivers an unf nished ook due to its mi ky wh te co or and that Ultem is unnecessarily expensive for the specific use of the product

Since the products are used in medica applicat ons there are specific require

Co or-matched materials for aesthetics

Sim lar or sufficient mater al propert es for their respective app ications

Strong durabi ity

Materia resistance to common cleaning agents after med cal use

Tight tolerances due to their app ication

With this information researched suitable materia s and reached out to 5-10 vendors to ask for pricing sizes ead time, and minimum order quantity I communicated with the outsourced manufactur ng and pr nting vendor to discuss whether the mater als are suitable for manufacturing and pad printing Th s was the first taste of product development of an existing product and how engineering design, and business synergize with each other Shown below s a s mp ified tab e on decision-mak ng between materials. We ended up prototyping the products using a m x of HDPE UHMW and Boltaron for spec fic app ications

CAD Modelling and Design Changes

W thin the system there were mu tiple areas where sheet metal components interfere with each other Shown above are the examples of design changes made to fix this

Manufacturing Test Fixtures

There were misa ignment issues regard ng a prev ous version of a test fixture, therefore I had to tweak some design features and restart the mat ng. This experience taught me how to interpret and uti ize designs prev ous y made by other peop e

I was respons ble for prototyping manufacturing and using the test fixtures From th s experience I have been introduced to the laser cutter the U timaker the bandsaw the miter saw, and other mach nes and too s

Additional y, I have also grown famil ar with the uses of d fferent des gn features for specific applicat ons such as mating w th a dovetai s ot

Proposed a sl ding mechanism to h de exposed screws in the design

2

Team:

Arushi Patel

Alyssa Nizamuddin

Mindy Tran

Samveda Pagay

Stephen Zhang

Victoria Pierce

Prone VR

Responsibilities:

Idea and design conceptualization

CAD design

Hardware development

grant writing and application

Everything in between!

Prone VR is a medical device that enables the use of VR (virtual reality) in prone, lateral, and other necessary but uncomfortable positions. This product was initially developed by a group of undergraduate students to study the implementation of VR distraction in patients undergoing interventional pain procedures. Eventually, our long-term goal is to enter the market with the purpose of non-invasively reducing anxiety and pain in medical procedures.

Prone VR

Nicolas Matthew Pranata

The NEED for this Product

Margaret

Age 60

Personal Background:

Housewife after the b rth of chi dren (used to work a desk job)

L ves in a ret rement home

L kes to go on morning walks with her pood e and enjoys nature

Chi dren and grandchi dren visit from time to t me

Health concerns:

Started to experience back pain when walking

Recently diagnosed w th umbar spinal stenosis (constricting spina nerve) usua ly associated w th degenerative changes

Not in advanced stages yet quite discomforting

Currently doing physical therapy as primary treatment

Future treatment plans:

"My back pain is getting worse, but Chico (her dog) needs her daily morning walk. The doctor told me that epidural injections might be the best option. They told me that it might be uncomfortable, I'm very anxious about the procedure"

Her fami y is pushing her to undergo the procedure yet she s worried about the pain during the procedure caus ng her to prolong it

Lumbar injection is temporary pain re ief and needs to be routinized VR distraction was ntroduced by the doctor and she is w lling to try anything to reduce the anxiety during the procedure

50 MILLION US ADULTS are affected by chronic pain

Product Opportunity Gap

TECHNOLOGY

Currently no prone positioning or face rests on the market that can accommodate VR

POG

A dev ce allowing comfortab e use of VR in the prone position which enables its use for anxiety reduction dur ng spina treatment

Market and Customer Research

MARKET POTENTIAL

A majority of patients as high as 64%, will receive some form of psychological sedation

At the UC Davis Pain Clinic, 400+ patients undergo interventional pain procedures each month

5.6 MILLION PATIENTS

sought interventional pain procedure to relieve their symptoms

Dr. Pooja Patel (an anesthesiology resident at the UC Davis Pain Clinic) estimated that between 1/5 and 1/6 of her patients refuse or discontinue treatment due to high pain or anxiety.

Nicolas Matthew Pranata

Product Development

Product Functionality

Simple and consistent evered cam locks at each point of adjustment to improve ease of operation

The arms that hold the headrest have two points of vertical rotation and te escoping bars beneath the headrest tse f to a low for any desired neck length, height and angle of the face rest

Fabricated using layers of laser-cut Delrin to reduce manufacturing cost and yie d on the axial direction

Current Status and Future Development

The face rest includes two pieces of foam to support the forehead and chin respectively The chin piece is repositionable on ve cro to achieve adjustability for face length

The foam is covered by medical-grade PU eather to increase durabil ty and elim nate disposab e units

The tray that holds the VR headset is a separate piece that is interchangeable for use with headsets of different sizes

Exposed screws due to inconsistent d mensions between the CAD design and prototype

I found out they were using wood screws and a shorter screw option is not availab e. After further d scussion with the team I reiterated the baseplate and found suitab e hardware for the application CAD sketches are referenced incorrectly causing random dimensions within the design Cam Locks systems cou d be better designed to reduce it from 4 to 2, one on each side

Since I joined the team I am the so e mechanical engineer with n the Prone VR team I am currently remodeling the who e Sol dworks des gn to a new y earned CAD software (Onshape) for easier access and collaboration Whilst doing this I noticed a few errors with the CAD model Examples include resolved a l the des gn ssues on the parts and am currently progressing to make a finished assembly of the product on Onshape Additionally I am testing a ternative locking mechan sms to replace or make the cam ocks more efficient. Thus from these find ngs, t is ev dent that a new prototype should be produced before the start of human test ng starting in 2023

Addit onal y, we aim to increase our fund ng by extending our winning streak in former competitions such as Little Bang! and compet ng n new chal enges such as The B g Bang! Business Competit on hosted by UC Davis M ke and Renne Chi d Institute for nnovation and Entrepreneurship as we l as grants such as the Venturewel grant The potentia of this project truly excites me and I aim to optim ze the product deve opment exper ence by wearing mult ple hats

Example of the ProneVR in use during procedures in prone posit on

Individual CAD parts of the te escoping arm on Onshape

Nicolas Matthew Pranata

2

Exercise equipment design project: Hercules V

Team:

Bryan Tiang

Efren Vargas

Bocangra

Jovan Ko

Zaid Khan

Responsibilities:

Project management

Conceptual design ideation

Operating procedure

Kinematic and spring calculations

Material selection

Report writeup

Hercules V

Hercules V is a product design project from the EME 150A: Mechanical Design class at UC Davis. The task was to develop concepts for a compact, portable, economical, and durable exercise machine with the challenge of using springs as resistance. Our team designed a Vshaped portable gym equipment that utilizes flat spiral springs to induce resistance rather than weights. Although it is a V shape, the angle between each arm ranges from approximately 30° to 180° which allows users to effectively exercise different muscle groups.

Nicolas Matthew Pranata

Exercise equipment design project: Hercules V

Design Inspiration Alternative Design

After further research we were able to take inspiration from an existing product from a brand named OYO Although t is a similar design concept they use a co lection of rubber n tension to induce resistance. Through this reference the ideation of Hercules V was made Our team bel eves that it s overengineered and that we could offer an alternat ve that is as functiona yet affordable and simpler.

Introducing:HerculesV

Don't have time to work out? Want to break a sweat on the move? Any place, Any time Hercules V is just the right exercise equipment for you busy bees.

Hercules V is compact allowing it to be portable

The design is robust yet lightweight

It allows you to stack spring cases resulting in a variety of resistance options

From dynamic stretches to exercise sets our main purpose for this equipment is to allow users to use this equipment with flexibility. All in all, Hercules V aims to target 4 muscle groups: bicep tricep, pectorals, and back.

SISER T ANCE FLEXIBILITY

An alternative that was cons dered was a f at board base that a user steps on it has handles with bands on each side connected to the board and springs below each handle to induce tension (resistance) or weight.

However we rea ized that the use of flat spira spr ngs was more space efficient and therefore would a low us to make our device more portable

Res stance can be altered by the users by mounting or demounting spring cases To ensure the containers are in locked position a ba l bearing detent mechan sm is applied for robustness and ease of use

SPRING

For the springs to work they need to be co led in d fferent directions for push and pul exerc se movements Therefore we have both ant -c ockwise and c ockwise spr ng attachments

To allow greater operat onal flexibility for the equ pment, Hercules V is designed to have a range of motion from 0 to 180° Additional y the handles are detachable for future interchangeable accessories such as straps for eg excercises

Nicolas Matthew Pranata

Research for Specifications of the Product

Finalized Spring Dimensions

The cha lenge of this product was the reiteration of the spr ng Using the goodman equat on we conducted a fatigue fa lure ana ysis by comparing the scenario with a theoretical scenario of a person exerc sing every day and doing 5 exercises with 3 sets and 10 repet tions each From this, we are able to modify the d mensions of the spring to what suits best for the app ication

Exercise equipment design project: Hercules V

Material Considerations

6061 Aluminum Alloy Lever arms

Coiled spring made from Carbon Valve Steel ASTM 230 within the casing

Injection molded case made out of ABS

Lighter cheaper, durable

Ideal for complex mating features

Theoretica ly, our design and mechanism work perfectly. However, we found that further tests had to be conducted on physical prototypes of the Hercules V in order to verify the strength of the spring containers.

Furthermore we found that our design has good serv ceabil ty since the parts are modu ar With that said, further design improvements can be made to the arms and handles of the Hercules V to make it more comfortable for users

Overall our team believes that Hercules V reaches al the expectations of ightweight durable yet affordable portable exercise equipment However, market research is needed to understand the product space.

The full report can be accessed upon request.

6061 Aluminum Alloy handles covered with thermoplastic elastomer rubber for durability and grip

Nicolas Matthew Pranata

4

Team: Hugo Tanade

Jeanice Harijanto

Letta Isabel

Project Mask On

Project Mask On is a non-profit organization I founded in 2020. With a group of 5 students, Our goal of this project is to primarily provide reusable masks as well as household items, food, clothing, and antiseptic products. We want to convey the message that masks are only one of many necessary products to halting the spread of coronavirus. Ultimately, we hope that by the end of this movement, we as Indonesian citizens are more unified in helping the unfortunate.

Background Information

Am d the pandemic I was forced to return back to ndonesia in the 2020-21 schoo year. real zed the dire s tuation of the pandemic n Indonesia espec a ly n the underprivileged sector Due to the extended ockdowns parents were osing jobs and ch ldren were not able to attend school and yet there was no action taken W th my pass on for democrat zed healthcare created Project Mask On to give back to my home country by prov d ng support to the peop e who need it most By co laborating w th ocal businesses large compan es and other NPOs Project Mask On created a movement of unity among ndonesia s citizens to he p one another Through this fu f l ing exper ence my long-term goa is set To introduce innovat ve products to improve ndonesia's healthcare system

2,417,788 cases

9th July 2021

During the time I started Project Mask On Indones a s coronavirus cases were steadi y ncreasing. However after nterviewing the underprivileged fam lies they were unaware or unbothered by the severity of this s tuation One of Project Mask On s main goa s were to raise awareness towards the dangers of coronavirus

Through our high ights we inform the pub ic through weekly updates regarding the coronav rus. We a so public ze our donations and col aborat ons to show transparency regard ng our processes

Inform the Public Financial Transparency

Fundraising System

Produced and Sold Reusable Masks

Our f rst fundra s ng techn que was to se l custom-made reusab e masks w th different color opt ons sizes and mater als Inc uded n the package is a pouch to store the mask and an nfo card inform ng about usage and washing nstructions

Financ al transparency is key with n an NPO therefore we disclose our accounting once every two weeks through donat on updates We also created a report to state our projections and summarize our overal account ng

Drawing Competition

We held a drawing competit on for the ch ldren w th n the organizat ons we support. The theme for the drawing is your ambitions From this we aim to rem nd students the r ambitious and encourage them to keep learning even during harsh times such as the pandemic The prizes were sponsored by companies such as E ger and Lav e

Collaboration with the Local Businesses

Contacted local smal and large businesses on the idea of a co laborat on for a donat on n return for publ c market ng Project mask On with 20 ocal businesses and received 5 sponsorships from major food compan es such as ndofood and U trajaya

With the help of donations, collaborations with 20 local businesses, 5 sponsorships from food and supply companies, 3 collaborations with other NPOs, successful fundraising, and amazing support from our followers. Project Mask On raised approximately 46 000,000 IDR (3,200 USD). Fortunately, our NPO has supported:

2 educational organizations for underprivileged children: Ibu Rita Home Library and RUBAMA.

1 service organization for street cleaners: 3B Make Bandung Clean.

3 local schools in Bandung, Indonesia: TK Nurusyifa, TK Tunas, and SD Tunas Harapan

4 Orphanages: Dorkas Orphanage, Panti Asuhan Kasih Anugerah, Panti Werdha "Berea", Yayasan Sayap Ibu

Families in 6 cities in Indonesia: Bandung, Jakarta, Kupang, Sumba, Bali, and Papua

We were able to provide:

4 Infrared thermometers

431 bottles of 50ml hand sanitizers

370 face shields

2,000 reusable masks

25L disinfectant

42kg of tomatoes

20 school books

20 umbrellas

750 Indomilk (milk for children)

844 Indomie (instant noodles)

305 Ultra jaya kacang ijo

1,055 Kg of rice

105,5 Kg of sugar and flour

211L of cooking oil

282 bars of soap

Take a look at our journey on Instagram: @Projectmaskon.id

Nicolas Matthew Pranata

Matlab project: Baccarat game

Pest Surveillance System

CAM Simulations

CAD project: Racecar

Dr. Hull's Orthopedics lab

Miscellaneous: Other Projects

Nicolas Matthew Pranata

Nicolas Matthew Pranata

Matlab Project: Baccarat Game

Pest Surveillance System

The UC Davis student farms have been experiencing conflicts on pests, such as rodents and squirrels, damaging produce Our group had to design and create an affordable durable and replicable system Our team designed and created an affordab e, durable, replicable pest surveillance system by using Raspberry Pi This system allows farmers to detect squirre movements through its PIR sensor which then activates the camera If squirre s are still detected, the system wil generate a specific frequency sound from its speaker to fend off the squirrel

My responsibilities

CAD design using Solidworks of the structural components and aser cutting of the components

Reiterative prototyping using 3D printing and laser cutting of multiple versions of the system.

Manufactured the prototypes to allow components to fit inside whilst stil being optimal for rea -life applications.

Created the poster to make it visually appealing when presented to other teams and the student farm.

Miscellaneous: Other Projects

Our group consists of 4 people, the project was done throughout the coronavirus period. Through these complications, I decided to take the role of the group leader My responsibi ities include project management game aesthetics and functionality, debugging, and the final video presentation. Throughout that time I immersed myse f in the role by organizing meetings checking each deliverab e meets the requirement and was submitted on time and earning multiple resources to a low our game to exceed expectations. As for Mat ab, I fami iarized myself with the coding language which includes functions, loops and the overa l GUI interface I was In charge of the aesthetics of the game which includes: imp ementing the card pictures, the announcements (Player/Banker wins) the start p ay and betting button functions, the player lights, and the animations for each action. Furthermore I edited and finalized the fina presentation.

My presentation can be seen here (6:20-8:20): https://www.youtube.com/watch?v=D5nIgvhRqx8

CAM Simulation

During this class students were assigned to design a totem where the top and bottom wil attach to other students' totems Due to the inability of manufacturing the totem in person because of the pandemic, we used a CAM simulation software called Autodesk Fusion 360 to simu ate manufacturing processes (such as lathes, mills, and dril s) We are able to generate G-codes a lowing our supervisors to manufacture our totems

Nicolas Matthew Pranata

CAD Project: Racecar

Miscellaneous: Other Projects

In our CAD class, students were divided into groups where we were assigned to construct a model of their choice which requires 20 parts (a portion of the parts had to be movable). We chose an F1 car!

My responsibil ties

Organized meetings and checked in with group members to ensure the team meets the deadlines and requirements for the technical report and the Solidworks mode

Col aborated in compiling a pack-and-go for all parts and assemblies.

Designed the seats and disc brake assemb y which ncludes the disc brake, disc cal per, front upper wishbone front lower wishbone, and front hub carrier (inc uding BOM drawings of each part and assembly).

Dr Hull' s Orthop di L b

n Dr. Hul ' s Orthoped cs Lab, I was tasked to make another optimal knee model which replicates the original knee mode made by Dr Hu l The aim of th s project is to use the model to help physicians and researchers practice oading a cadaveric knee into the oad appl cation system The Knee model had specific requirements which include

Replaceab e rods which can be easi y disposed of Cost-effective and durable

Is not restricted to flexion and extension movements

My responsibilities include

Measured dimensions of the origina model and modeled the prototype in Solidworks

Researched suitable materials al owing the model to be costeffective yet functional

Using the mill and the lathe, I created a manufacturing process to manufacture bearings for the oad app ication mach ne.