Image:BB total artificial heart.JPG
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Bob Bouwer's schematic of a proposed total artificial heart (and the position of the own heart when the device is used as a ventricular assist device). Drawn are the 2 connecting pipes and pumps (motors with attached propellers). Either connecting pipe connects to the arteries coming from the mentioned body parts.
There are 4 motors with propellers (or even better piston-based blood pumps as these would require less or no anticoagulants to be taken *1) and 2 batteries, though only 2 motors and 1 battery are essential. The others are intented as redundant motors/batteries, to be switched on when the other motors/batteries break down. Switching on the redundant motors and deactivating the broken down ones is done by the printed circuit board (PCB).
The PCB and the batteries are implanted into the body (not connected to it from the outside). This, as the device is intented as a permanent device (not a "bridge to transplant"). It will thus also need regular recharging which can be done by a power cable running to outside the body, or (more preferably), via WiTriCity device, or Qi Wireless device.
Main benefit of the device (besides the permanent use and the greater reliability trough redundant parts) are that the parts can be made in larger quantities (no special artificial hearts need to be custom made, rather it can be made using regular ventricular assistive devices (VADs). This lowers price greatly. Also, there are very few parts (less prone to breakage, and less infection risk -as the whole is smaller-) and if surgery is needed again, only the part that broke down may need replacing, meaning the surgery is less invasive and the person can heal quicker. Most surgeries needed will require the batteries to be replaced. Not only are the batteries seperatly replacable, but they can also be have been implanted a bit away from the motors (positioned where the heart used to be), limiting infection risk even more.
All parts can be made from materials that do not cause rejection by the body (i.e. titanium, ...).
- 1: A piston-based pump can be made similar to http://visualoop.com/media/2013/05/jarvik7.png in which rather than using compressed air, the piston is operated by (for instance) solenoids. These can be powered electrically from the PCB. The advantage over compressed air is that batteries can be used and the system can be small enough to build into the body.
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|current||07:58, 16 September 2016||1,716×1,832 (336 KB)||Bob Bouwer (Talk | contribs)||(Showed position of own heart in schematic when used as ventricular assist device (VAD))|
|02:07, 20 August 2016||1,716×1,832 (304 KB)||Bob Bouwer (Talk | contribs)||(Bob Bouwer's schematic of a proposed total artificial heart. Drawn are the 2 connecting pipes and pumps (motors with attached propellers). Either connecting pipe connects to the arteries coming from the mentioned body parts. There are 4 motors with prop)|
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|Camera manufacturer||KONICA MINOLTA|
|Camera model||DiMAGE Z6|
|Exposure time||1/100 sec (0.01)|
|Date and time of data generation||00:00, 1 January 2005|
|Lens focal length||5.859375 mm|
|Image title||KONICA MINOLTA DIGITAL CAMERA|
|Horizontal resolution||72 dpi|
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|Software used||GIMP 2.6.4|
|File change date and time||14:54, 16 September 2016|
|Y and C positioning||1|
|Exposure Program||Normal program|
|ISO speed rating||50|
|Date and time of digitizing||00:00, 1 January 2005|
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|Custom image processing||Normal process|
|Exposure mode||Auto exposure|
|White Balance||Auto white balance|
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|Focal length in 35 mm film||35|
|Scene capture type||Standard|
|Subject distance range||Macro|