Half a croissant, on a plate, with a sign in front of it saying '50c'
h a l f b a k e r y
Like gliding backwards through porridge.

idea: add, search, annotate, link, view, overview, recent, by name, best, random

meta: news, help, about, links, report a problem

account: browse anonymously, or get an account and write.

user:
pass:
register,


                               

bladderies

Uric acid batteries integrated into the human body.
  (+5, -4)
(+5, -4)
  [vote for,
against]

People with pacemakers for their hearts, implants in their brains to prevent seizures, blood-sugar monitors, and mechanical organs (hearts, etc.) all have one thing in common: Their implants need power.

Traditionally, the electrical power to run these implants has been provided by atomic batteries, which run off of radioactive decay, and last some fifteen years or so.

As we can readily see, atomic batteries have certain drawbacks: radiation, and needing to cut the person open if the battery must be replaced, for example. Often these issues are somewhat reduced by sticking the battery near the outside of the body for access, and using a thick bone, or water-filled cavity to partially shield the rest of the body from the radiation. Good enough? You tell me.

I suggest that science may soon put an alternative method within our reach. Thus, before they exist, Virtucom is proud to introuce our new fall lineup of bladderies.

Bladderies are essentially open-cell batteries, in which the acidic fluid is supplied, and replenished by the human body itself. Vents allow the hydrogen gas to escape, and valves admit new fluid to replenish that lost via electrolysis, without allowing "contaminanted" liquids out.

As the name suggests, bladderies will originally be designed to be placed in the human bladder. As other fluids (tears, semen, mucous, saliva, etc) may also activate the bladderies, it should be possible to design special-use bladderies for placement in other areas, such as the tear ducts, and gleek glands.

Our main products will be designed for use in the urine bladder however, and for good reasons: As the bladder is producing stuff to expel from the body, any leakage from the bladdery in this area will be least likely to pose a danger to the human body. Additionally, the bladder contains the widest entry port, so that changing out expended bladderies, if necessary, would be more easily performed via laporoscopic surgery through this part of the body.

Some of you might argue that a bladdery could leak metal salts that are dangerous to the human body. Really? More dangerous than radiation?

Some of you might argue that accessing the human body via the urethra is enormously dangerous, and/or painful. Really? More dangerous than cutting the human body open?

Some may raise concerns about the fit. Granted, this could be an issue, but a battery can be made in any shape or size, and connected in parallel to achieve sufficient power. So too the bladdery, and I've heard rumors that the urethra can be stretched.

These are certainly valid concerns, but I suspect that in the end, a well-desgined bladdery could be a good competitor as far as overall safety is concerned, and the materials needed for production are probably easier to obtain, which could make this device economically competitive as well.

ye_river_xiv, May 27 2009

singapore's urine battery http://news.nationa...8_urinebattery.html
[ye_river_xiv, May 27 2009]

This Virtucom? They're really going for this? http://www.virtucom.com/
[21 Quest, May 27 2009]

No, this virtucom. http://www.imdb.com/title/tt0118655/
There was a running gag that accused me of being Dr. Evil's cat. [ye_river_xiv, Jun 01 2009]

Alternative Heart-Charging Methods http://www.imdb.com/title/tt1121931/
I'm lead to believe that this is some sort of documentary ... [Aristotle, Jun 01 2009]

[link]






       Ok... say you manage to put a battery in the bladder. By what route do you suppose the transmission lines feed from the interior of the bladder to the heart, brain, etc.? The only ways into the upper reaches of the torso from the bladder seem to be through the ureters, which run smack into the kidneys. You're either obstructing the ureters, or cutting a bunch of holes internally. So yes, I'd say that's more dangerous than a little shielded radiation. Considerably more dangerous.   

       Anyway, isotope-powered pacemakers were phased out in the 1970's in favor of lithium-iodide cells. So, what radiation are we talking about, exactly?
21 Quest, May 27 2009
  

       The way to a man's heart is through his bladder? Surely you're taking the piss.
BunsenHoneydew, May 27 2009
  

       "bladderies" - ha!
phoenix, May 27 2009
  

       I've often mused about this idea.[+]
Aristotle, May 28 2009
  

       The only way to get from the heart/brain to a battery pack is always by cutting a bunch of holes internally. What do you think they do to insert the implants in the first place? Sit it on their chest, and pray for a while?
ye_river_xiv, May 28 2009
  

       They cut fewer holes, and they cut them closer to the surface, where they are more easily reached for any follow-up surgeries that may be required later. With your system, they'd have to completely open the guy up if they had to remove the pacemaker for any reason.
21 Quest, May 28 2009
  

       //completely open the guy up if they had to remove the pacemaker for any reason//   

       Not true. Pacing wires get to the heart via central veins. They're thin and could pass through the bladder wall to the inferior vena cava fairly easily.
shudderprose, May 28 2009
  

       //"bladderies" - ha!// My sentiments exactly! LOL! [+]
Jscotty, Jun 01 2009
  

       Foreign bodies in the bladder tend to encourage stone formation and infection. I think this would do that. Even so, there are other sources of energy, for example movement.
nineteenthly, Jun 01 2009
  

       Um, what's the power source? In the 'urine battery' you link to it looks to me like you've essentially got what most people think of as a 'lemon battery'. That is, the energy is coming from the sacrificial electrodes. The urine (or lemonjuice, whatever) is just an electrolyte.   

       It seems to me that for a 15 year battery the amount of metal required for these anodes would be... rather large.
Loris, Jun 01 2009
  

       Plus the issue of putting holes in multiple organs and running those lines all the way up the torso to the heart.
21 Quest, Jun 01 2009
  
      
[annotate]
  


 

back: main index

business  computer  culture  fashion  food  halfbakery  home  other  product  public  science  sport  vehicle