#biomedical engineering

[destielmemenews]

"The researchers have not tested the process on humans, and it’s not clear what dosage of dye or delivery method would be necessary. Human skin is about 10 times thicker than that of a mouse, according to the researchers.

“Looking forward, this technology could make veins more visible, easing … the procedure of drawing blood or administering fluids via a needle — especially for elderly patients with veins that are difficult to locate,” said senior author Guosong Hong, a Stanford assistant professor of materials science, via email.

“Moreover, this innovation could assist in the early detection of skin cancer, improve light penetration for deep tissue treatments like photodynamic and photothermal therapies, and make laser-based tattoo removal more straightforward.”"

source 1

source 2

source 3

[gunsandspaceships]

Tony's surgeries in the cave: Part 3. Second Surgery

Why the second surgery was necessary: Part 1, Arrhythmia, Reactor, Part 2

What was done:

Removal of the electromagnet.

Sternectomy - partial removal of Tony's sternum.

Removal of some chest and abdominal muscles (some partially, some completely).

Removal of parts of at least 4 ribs on both sides together with parts of attached muscles.

Yinsen may or may not have removed the thymus.

Tony's heart was slightly shifted back in his chest cavity.

Implantation of pacemaker-ICD electrodes running from the bottom of the reactor housing to the heart (This could be done either directly through the chest cavity outside the heart, or through the subclavian vein into the heart).

Removal of parts of Tony's lungs/lungs moved to the sides.

Displacement of blood vessels in Tony's chest.

Displacement or removal of lymph nodes in the chest. In case of removal - replacement with an artificial system connected to the reactor housing.

Implantation of the titanium reactor housing, its attachment to the parts of the sternum that were not removed.

Connecting the housing to the ribs using rib clamps.

Attaching the reactor with the pacemaker to the housing.

Suturing muscles and tendons to the reactor using surgical/biological mesh.

Closing the wound with polyester cuff around the housing where it meets the skin.

Suturing the sternectomy incision.

How do we know this actually happened?

In addition to the reasons stated in Part 1:

After the first surgery, we don't see the reactor housing in Tony's chest. The electromagnet is bolted to the sternum and, unlike the reactor, cannot simply be temporarily removed from the chest.

As you can see below, unlike the electromagnet, the reactor housing is complex, clean, made of titanium and designed specifically for the arc reactor.

Remember about internal organs - you can't just make a hole and put anything in there, no matter how deep it is. You'll need to remove or displace something.

In the scenes below we can see a fresh sternectomy scar after the reactor was implanted. The scar looks different every time, and sometimes it disappears completely thanks to makeup artists. There is not a single scene with this scar before the reactor.

As I mentioned in The Cave timeline (March 1 - April 12), several weeks passed between the successive scenes: Tony finished working on the reactor and showed Yinsen the armor blueprint > the security camera scene and the backgammon scene.

The two weeks between the first surgery and Tony waking up would not have been enough time to recover from the trauma of the reactor implantation. Tony instantly jumps to his feet and is able to raise his arms above his head and hold a car battery - nope, that's absolutely unrealistic.

The Ten Rings would not allow them not to work, but we see them playing board games. Post-op recovery explains it.

[reionized]

people who work/study in quantitative bio-adjacent fields, rise up. computational neuroscience where you get to see someone's thoughts in feelings in graph form??? so cool. biophysics where you can pass blood plasma through an electric field to determine whether a patient has cancer or not?? unbelievable. biomedical engineering where you can literally build a device to pump someone's heart and be the difference between their life and death??? oh my god. disease modelling, being able to predict AND prevent communities being affected by disease on a large scale through your analysis of data??? i love science

[winryrockbellwannabe]

| n e w i n t r o p o s t | (since im in my masters now)

🎀about me:

☆ AJ (she/her) & 20yo ☆ Master's student of Biomedical Engineering - Medical Instrumentation ☆ adhd @aj-is-talking-again is my fandom side-blog. (it looks like it's mostly haikyuu, but honestly anything)

✨interests and hobbies

☆ academically: maths, eletronics (i know i'm bad at it, idc), mechanics, quantum physics, coding ☆ hobbies: reading, watching anime and cartoons, playing piano, having existencial crisis

Also, this year I'll finally become organized so

📍some tags i use:

#aj rambles - for stuff that's not related to study #2.3 - my last semester posts if anyone is curious #1.4 - this semester posts #beloved moots - you guys would never guess it but it's when i interact with my mutuals lol (i tried to have specific tags for some moots i interact with more often, but i forgot most of it)

📚 academic goals for this year

☆ survive my master's degree lol ☆ have at least a 15/20 average grade ☆ getting more disciplined and organized about studying

[mindblowingscience]

Amputees’ hopes to experience the feeling of human touch using their prosthetics are becoming closer to reality. Now, new technology is allowing them to feel temperature—even in limbs that are no longer part of their bodies. For the first time, a functional artificial limb has been fitted with fingertip sensors that allow an ordinary prosthetic hand to sense and respond to temperature just as a living hand does. The device provides a realistic sense of hot and cold in the missing “phantom” hand by delivering thermal information to nerve areas on the amputee’s residual limb that the brain believes are still connected to the missing hand. The MiniTouch, described in a study published Friday in Med, was created with affordable off-the-shelf electronics, requires no surgery and can be fitted to existing commercial prosthetic hands in a matter of hours.

Continue Reading.

[tired-bme]

Saturday, November 11th

Little time lapse of me catching up to my immuno class, and drafting a sociology response. I’ve been wildly unmotivated so I have soooo much to catch up on. Hopefully tomorrow is a more productive day.

[pastelpeterparkerr]

Observation: most evil/mad scientists are biomedical engineers

[ggstudyblr]

notes ft. my emotional support claw clip :P scans attached below

just trying to catch up. my prof tells us to print the lecture powerpoints so we don't write as much but idk how I feel about it.

excited to write these! my s/o got me a big pack of mildliners <3 so I wanted to test all of them

[elenstudiesbiomed]

Final semester before graduation… Amazing how time flies ⏳

My internship at the hospital starts next week and I couldn’t be more excited 🥼🤩

[halfhildhalfmarilyn]

Hello, I am Ahmed. The war destroyed my life. Can you help me? I need 3 things from you: Share, repost, and donate if you are able to donate. Thank you for listening to me

My post link 👇💕

https://www.tumblr.com/ahmed4palestine/756439898525974528/urgent

My GFM link 👇🔗

https://gofund.me/1d8bb3df

Hello Ahmed,

Thank you for sharing your GFM, may Allah SWT help you reach your goal fast ❤️

Share and donate to help Ahmed and his family evacuate to a safe place !!!

12 621$USD out of 20 000

[medtechenthusiast]

transport ventilator issue

I seem to be having problems with the compressor in my ventilator sticking for some reason if anyone knows a fix that would be great it’s an impact uni vent model 754

[gunsandspaceships]

Tony's surgeries in the cave: Part 1. Why there were 2 surgeries

As I mentioned earlier and as suggested in this post, Tony had to undergo two surgeries in the Afghan cave: the first to remove the shrapnel and attach the electromagnet to his sternum, the second to implant the socket for the arc reactor, pacemaker for Tony's heart, and finally the reactor.

We were not shown the second surgery on screen, but there had to be one for the following reasons:

Yinsen did not implant reactor's housing and pacemaker during the first surgery.

Here is the only shot from the movie showing Yinsen inserting the electromagnet into Tony's chest. We don't see the socket for the arc reactor or a huge hole. Because at that time, Yinsen obviously had no plans to place a reactor there. All he did - bolted a shallow electromagnet to Tony's sternum.

Yinsen was not an engineer. Despite what you can read on the MCU fandom wiki page about him, he wasn't "Master Engineer". You don't have to be an engineer to know that electromagnets attract metal. Yinsen was smart, educated, and had extensive experience dealing with shrapnel wounds. That's all. As we see in the movie, he wasn't particularly confident with technology. Under those circumstances, he could not build a pacemaker and an arc reactor housing on his own. You can see how complex it was in that post about reactor. The only person who could do it was Tony. And during the first surgery he certainly wasn't able to build anything.

For all the technology that was implanted into Tony's body, Tony and Yinsen needed a lot of things, such as titanium, a pacemaker or parts to create one, surgical mesh, etc. Unlike rusty electromagnets and car batteries, these things are not found in caves. They had to order it or take from other stuff they were given after the first surgery.

Making things like a pacemaker and the socket takes time. If you are Tony Stark - less time, if you are a biomedical engineer - more time, not an engineer - much more time or eternity. No way Yinsen would have been able to do this before/during the first surgery even if he had all the necessary components.

Tony didn't need a pacemaker during the first surgery. Yinsen didn't mention that something's wrong with Tony's heart itself, that Tony needs a pacemaker or that he implanted one. Something happened to Tony's heart after that, so pacemaker became a necessity, and it was implanted along with reactor.

Complexity of the procedure: as you could see in the post, such a surgery requires serious changes in the patient's chest, affecting the bones, heart, lungs, muscles, nerves, etc. It would require a huge amount of time, a lot of drugs, including a good general anesthetic (chloroform and an awake patient are incompatible with such a procedure), a ventilator, and a lot of recovery time.

You're probably thinking that Marvel made a mistake and forgot about the second surgery, but they just didn't show it for the sake of time and PG-13 rating.

Part 2. First Surgery

Part 3. Second Surgery

[alexistudies]

february 1st, 2024

one thing i was hoping to learn during my post-bac but never really got around to was spike sorting. in my neural engineering class, i'm finally learning how to do that!

although i don't plan on collecting neural data at this level, i do hope to collect LFPs as part of my research so learning this signal processing in general is going to be extremely helpful. so far, i've determined my threshold and plotted the threshold line within the data. the hard part is everything that comes next of template matching, principal component analysis (PCA), and all the like. after not really using MATLAB in yeeears, this has been an adventure but i'm surprised at how much i've been able to recall and proud of myself for having no shame in googling MATLAB functions lol. i know i can figure this out, i'm smart(ish).

this hw is due feb 7th (with possibility of an extension if other people in the class take a while) so time to get her done. ft my pupper knocked out on the floor

[burntoutstemkid]

hey so fellow biomedical engineers, does it get easier? (asking as a incoming junior)

and let me rephrase the word easier, I mean does the academic imposter syndrome get any better. currently battling the whole “well there’s more women in biomed than other engineering professions” or “it’s not real engineering” pressure.

I go to a tech-heavy school, and am starting to succumb to the external and internal pressure, any words of encouragement/advice would be awesome :)

[research-and-survive]

23 March 2024

(6/100 days of productivity)

Today was just a relaxing Saturday with a friend, nice lunch and dessert and a walk by the beach 🥰

We all need these days to recharge after the working week!

[tired-bme]

Monday, June 3rd

Cramming neuroanatomy like there’s no tomorrow. Final is on wednesday but I have about five chapters of material to catch up on.

Also I found a spotify playlist that is now my study jam: