John E Martin

Designer. Biomechanical Engineer. Entrepreneur.

Portfolio

As of July 2014

FetalConnect® Rendering + Prototype

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CardioConnect® Rendering

CardioConnect® is the trademarked name of LifeWave Biomedical, Inc.’s dual respiratory and cardiovascular monitor. It is currently still in concept phase, though LifeWave holds a key physiologic monitoring patent that is the basis for this product. I was given this project as a means for creating a concept rendering which LifeWave will use for its website until a physical product is completed.

There are a couple key components to this design.

1. This product will utilize a silicone adhesive to be attached to the body. To make sure this appears plausible and intuitive in the photos, I had to make sure the aesthetics showed lightness. With respect to the form factor, I took the standard oval shape and pinched the sides in with a slight curve to give the product a “skinny” feel.

2. As this is a wearable device, which can be used both in the clinic for medical monitoring and by consumers interested in mobilizing their healthcare, it must look comfortable to wear. For this I removed all hard edges with significantly sized filets.

3. I wanted to make sure the product had some directionality. This is why the “LifeWave Biomedical” logo is smaller than the product name “CardioConnect®.” By adding this subtle difference in letter size, a “V” shape is implied and seamlessly leads the eye downward. It also emphasizes the “skinny” feel by pointing the eye towards the bottom curve of the pinched sides.

LifeWave Biomedical, Inc. Website

I have worked at LifeWave Biomedical, Inc. since September of 2013. As it is a small startup, we are always conscious of our finances and must run a cost benefit analysis on many of our expenses. When it came time to update our website, or re-do it completely, we met with a development firm to get an estimate based on the features we wanted to include. In the end, we did not want to spend the amount of money quoted so I stepped up and offered to write the website myself. Though my job description is normally that of a Design Engineer, I was happy to spend my time providing whatever services would be most beneficial.

The UI of this website was a very collaborative process between three of our members. We wanted to keep a clean and inviting feel to the website and thus chose a white background with no distractions from the content. We also wanted to make sure visitors were able to understand the breadth and depth of our technology’s potential very quickly. To get the point across we made sure the main navigation bar included overarching themes in all of the spaces we see as large potential markets. As our technology, Ultra-Wideband radar used for physiologic monitoring, has many applications, we also wanted to entice users to view all of the sub-heading dropdowns before moving on to further pages. To do this we added thumbnail photos which appear above the main navigation bar as you hover over each main section and each subsequent sub-heading. This adds a dynamic feature to every page and attracts visitors to hovering over, and therefore reading, each sub-heading.

Camouflage Design - Bull Gator Outfitters

Bull Gator Outfitters is a company I started with my parents in January of 2014 and our main product is this camouflage pattern, which we call Ambush Camo. I grew up wearing camouflage all the time and just love it. The idea for this pattern, which is based on the skin of an American alligator, came to my dad in 2010, though we did not have the time as a family to put the effort it takes to create a real business until the very end of 2013.

We collectively spent a couple hundred hours perfecting this camouflage pattern. It started with a high-quality image of the back of a juvenile alligator, but that was just the beginning. We looked at dozens of other camouflage patterns as well as the natural scenery of Northern Florida to come up with all of the right colors. Then we had to make sure we kept the distinctive patterning of the scoots (that is what the “scales” on the back of an alligator are called) while adding in the variety of browns, greens, and grays that produce great camouflage. Lastly we prototyped and iterated the colors and color-placement many times by taking photos of the sample fabric outside in the woods. In the end we created a one-of-a-kind pattern, which not only looks cool, but performs well for concealment.

FetalConnect® Housing

FetalConnect® is the trademarked name of LifeWave Biomedical, Inc’s maternal fetal monitor. It is currently in the clinical trial phase and we are working to assess competency with intrapartum uterine contraction data as well as fetal heart rate assessment. When I first joined LifeWave, this product was still in the lab-testing stage, but when it became time to work on real mothers during delivery, I was given the task of designing this case/housing to cover the electronics and interface with the patient.

The features of this design are definitely more practical and structural than aesthetic. Of course I did think about the form factor when designing this product, but it was secondary to functionality. When CADing this product in Solidworks, I started from the inside and worked my way outward. The first step was to make an exact model of the electronics including the cable and strain relief. Next, I built the structural components on the inside of the case, which would be used to hold the electronics in place. I played around with designing some snaps for the circuit board but then switched to screws. These features were easier to design, were stronger at holding the board in place, and had greater longevity.

Following this I designed the trapezoidal shape of the body. This allowed for a little more interesting look than a plain rectangle shape and added some extra internal spacing for easier access to the internal components after assembly. Once this was finished I included some internal ribbing for extra strength. Lastly, I added handles to each outer side as we needed to use straps to hold the monitor onto the mother’s stomach.

Yoyo Fishing Reel Platform

This project never made it passed the concept phase, though I still enjoyed working on it and I learned a lot through the design process. To understand this product you must first understand what a YoYo Fishing Reel is. In short, it is a spool that you wrap line around and use to assist with hand-line fishing. There is one main problem you face when using this product on a boat though, and that is that you cannot put it down. If you let go of the yoyo fishing reel, and a fish bites your hook, the yoyo will be pulled off the boat. This product was conceptualized to deal with that issue.

I helped design this product after being approached by a friend-of-a-friend, Nicholas Pectol. We wanted to come up with a way to hold these yoyo fishing reels similar to the way a normal fishing rod holder allows you to. The simplest design was to have a horizontal bar that you could place through the middle of the spool. On top of this we wanted to add the convenience of a small cutting surface to either place random items or use to cut bait. As fishing rod holders are standard on most boats, we decided the solution should utilize these for convenience. The photos shown are just the top piece of the product and do not include the horizontal bar that would hold the yoyo.

The most beneficial thing I learned from this project was the basics of injection molding design. I had not looked into injection molding before this project, but I loved learning the details of a real manufacturing process.

Mouse Head Holder

In 2013 I worked for three months as an intern in a stem-cell research lab at Stanford. One of my coworkers had a project involving mice where they performed brain surgeries for cell implantation. One issue they found was the device to secure the mouse’s head did not work very well. On top of this, it did not include a delivery system for anesthesia. After seeing my NMR Tube Holder product, my PI approached me about designing a better mouse holder with solutions to these problems.

There were a few design aspects to this project that I took into account. Let’s start with the black piece. This is a combination nosecone and anesthesia chamber. If you can see the small tube protruding from the right side of the main shaft, this is where the external anesthesia tube would be attached. The main shaft is completely hollow from the front to the back to allow for any excess gas to be purged. The black shaft slides into a white collar, which in turn surrounds the blue pillar. This design allows for the nosecone to move both up/down and forward/backward.

The last main feature is the jaw clamp. This is actually an alternative to the standard mouse holder design. Normally there are three points of contact between the device and the mouse, the nose and both ears. Usually there are two spikes on either side of the head that are inserted into the ears. This can actually damage the mouse’s eardrums if not done carefully. We decided to work around the problem by flattening the ends of the spikes and holding the rodents by the back of their jaws. In the end though, I did not have the time during my internship to build any physical prototypes and I was not able to utilize Stanford’s 3D printing resources afterwards.

NMR Tube Holder

This was one of my first independent projects. During my internship (mentioned above) I studied stem-cell death, or more specifically, apoptosis. One step of the study involved testing different timeframes for incubating the cells with an apoptosis-inducing agent. We needed to understand when the most of a specific protein, caspase-3, was being produced. To skip the details, we had to image 15 cell-samples at a time with a 1.5T MRI, and each sample was put into a 3mm diameter NMR tube. The post-doc I was collaborating with had hand-made a few holders for these tubes, and while they worked okay, it was still difficult to align these small tubes properly. After running this experiment a couple times, and becoming slightly frustrated, I decided to fix the problem with a holder of my own. I had learned how to use Solidworks and the 3D printers during one of my mechanical engineering classes, and thought it would be pretty easy to design a functional and stable solution.

This product can hold 36 tubes in perfect vertical alignment within the 1.5T MRI. It has a removable top which allows for easier extraction of the tubes after imaging, entry and exit holes to hook up running water, and a semi-circle guide to position the tubes in an optimal location within the RF coil. It took one prototype and one revision, but in the end it was very successful and decreased the set up time and frustrations with imaging 3mm NMR tubes.

Silver Bracelet

I made this bracelet as a present for my mother’s birthday. I had recently finished taking a silversmithing class in college (below) and knew she would appreciate such a personal gift. I had my dad measure the size of a similar style of bracelet that she wore often, and used those dimensions as the basis for this project.

My mom doesn’t really like flashy, in-your-face jewelry. I had to keep this in mind during the design process, though I wanted it to still be interesting and completely unique. I started with a simply curved band and a convex outer face. From this basic design I tweaked half of the bracelet with a convex outer surface. The subtle transition and similar yet opposing sides gives this piece a sleek duality. Oh, and it fits my mother perfectly.

Napkin Holder

When my girlfriend graduated from Stanford I wanted to do something special for her. I wanted to give her a gift that would be remembered, one that would last, one that got significant use or notice. I also wanted to make it, put real hands-on work into it to show my dedication. Now I am normally big on surprises, but I was really stumped with this one so I asked her what she would want. Her response, "A napkin holder."

Now before this project I had not worked with wood. I was familiar with general woodshop tools, but I can’t say I had ever really used them. For this reason I should have taken the time to become comfortable with each tool I needed to use, but I didn’t. I sort of just went for it. Considering my lack of experience, I think it turned out nicely.

The main parts are made of Maple, and the inlays are of Walnut. I pretty much stuck to the basic napkin holder design and pulled a few reference dimensions off the internet. Then I decided to add salt and pepper shakers, which increased the overall length. I thinned out the width by using an elliptical bottom instead of a rectangle. Lastly, I wanted it to be unique. I remembered an old sketch I drew on an airplane a few months beforehand of a cross and decided it was perfect. I pulled the image into Adobe Illustrator, created the outline, and used the laser cuter to make a depth of about .0625 inches. I inlayed the same cut out shape, glued down, laser cut the words onto the side, and it was finished. Overall I was happy with the experience and the product.

Cornhole Boards

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Silversmithing Class

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Lorem ipsum dolor sit amet, in nostrum vituperatoribus nec. Mea ei autem detracto, id his commodo luptatum definitionem. Feugiat intellegat theophrastus in vel. At posidonium dissentiet mel, nec ipsum assentior complectitur eu. Wisi essent sea ea. Saperet oportere duo no. Vidit congue vix an, mei idque inimicus intellegam et. Et vim inermis iudicabit persecuti, in pri possit feugait. Ne duo scripta iudicabit maluisset, idque doming maiorum id eum.

Bedside Table

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Lorem ipsum dolor sit amet, in nostrum vituperatoribus nec. Mea ei autem detracto, id his commodo luptatum definitionem. Feugiat intellegat theophrastus in vel. At posidonium dissentiet mel, nec ipsum assentior complectitur eu. Wisi essent sea ea. Saperet oportere duo no. Vidit congue vix an, mei idque inimicus intellegam et. Et vim inermis iudicabit persecuti, in pri possit feugait. Ne duo scripta iudicabit maluisset, idque doming maiorum id eum.