Welcome to the Elevated Vacuum Prosthetics Blog

Posted October 1, 2009 by elevatedvacuum
Categories: E.V. General

DSC03625Elevated Vacuum Prosthetic Socket Design, also referred to as Sub-Atmospheric Suspension, is the newest addition to prosthetic socket technology. This technology already has made a differnece in the lives of hundreds of amputees, improving comfort and function. However it is so new that there are curruntly no formal educational programs, no consensus on the best components to use, and, until this blog, no coordination of communication. Here you have a place where you can share you knowledge, your questions, your ideas, your experiences, and help hourself, your colleagues and the thousands of prosthetic users who will benefit from your knowledge.  Start using this blog today!!!


Elevated Vacuum Blog Moves To oandp.com

Posted November 18, 2009 by elevatedvacuum
Categories: Uncategorized

I am happy to announce the wedding of this blog to www.oandp.com. Look for future posts in the blog section www.oandp.com. I am hoping that the now location will be more convenient to all of you. If you have trouble finding it, you can still find me on this blog and send me messages. Also all of the reference pages on this site will stay here for the time being. We will try to transfer them.  Please be patient as we make the transition.

I have made the final update on this site to the page “steps in making a transfemoral prosthesis” check it out and then…

Look for us on www.oandp.com

Thanks for the interest and support!!

Syme’s elevated vacuum liner problem

Posted November 7, 2009 by elevatedvacuum
Categories: E.V. Fabrication, Uncategorized

I promised to share the problems as well as the successes. Today I had a great fitting on a transfemoral which I will report on in a seperate note, but I am back to the drawing board on my Syme’s.  I have a Syme’s patient who has vascular problems and inconsistant residual limb volume. He has constantly asked me to make him a prosthesis which “does not go all the way up to the knee”. We decided to try elevated vacuum to stabilize the limb volume, to improve comfort, to alleviate the need for socks, and to allow lower trimlines. I cast him for a custom liner and fabricated a silicon liner with 7 percent circumferential reduction. When I applied the liner, he could not stand the compression. It caused him pain and he said, “Get it off, quick!!”  Needless to say I got it off… quick.  I re-cast him and will fabricate a liner with minimal compression and try again.

Greg Straub, CPO Shares Experience with Syme, KD, and BE

Posted October 26, 2009 by elevatedvacuum
Categories: Uncategorized

Greg Straub, CPO sent in the following reports on recent fitting successes with elevated vacuum:

Symes: Prefab Alpha cushion liner, trim line of socket below Tibial Tubercle, sealing sleeve onto thigh, laminated socket with 1/8 Vivak inner socket, no window or bladder. Otto Bock E-Pulse pump which she wears on her waist belt with a line running down to the distal posterior socket. Also used a Flex Symes foot. Patient reports prosthesis feels totally secure.

Knee Disarticulation: Custom Alpha cushion liner, to date in test socket. Socket trim line 1.5″ below ischium. Liner reflected over socket to exterior socket walls. Sealed with Alpha AK sleeve. To date using Otto Bock E-Pulse pump. Reports the socket system is the only really comfortable one in his 25 years of wearing prostheses. Long term plan is to use Mica Corp TSS Vaculink pump. This will be secured to his Variflex with Evo 30 MM pylon with a line running up to distal posterior socket. The distal cable which pulls the vacuum will be secured in between the split Variflex heel. Socket will be C- Fab by Otto Bock using the new flexible socket material Polytol with frame laminated in. Uses Ossur 2100 knee.

Short BE for water prosthesis: Custom Alpha cushion liner, hard laminate socket with 1/8″ Vivak inner socket, standard SC trimlines as he is a short BE, sealing sleeve, Otto Bock one way Tetra Valve with brake bleeder pump. Valve located distal medial for easy access to patient. Uses Nylon wrist and TRS swim fin.

Fabrication Steps Now on This Site

Posted October 22, 2009 by elevatedvacuum
Categories: Uncategorized

Check out the new page listed on the right hand column. I have added a page which gives a running log of the steps of fabricating a transfemoral elevated vacuum socket.

AAOP Offers Subatmospheric Suspension Certificate Course Oct. 10

Posted October 6, 2009 by elevatedvacuum
Categories: E.V. Education, E.V. Events

AAOP will offer a certificate course on subatmospheric suspension (elevated vacuum) on Oct 10, 2009 in Chicago.  It will cover clinical applications of the technique on all levels of upper and lower extremity amputation. In the afternoon there will be presentations relating to research and education in this new technology.

For more information on the course , see  http://www.oandp.org/news/news_item.asp?frmNewsID=0602200901

Report from AOPA Seattle

Posted October 2, 2009 by elevatedvacuum
Categories: E.V. Research and Science, E.V. The Latest Hottest News

AOPA National Assembly, Seattle- On Tuesday, September 22 a panel of leading researchers in elevated vacuum technology presented an overview of the work being done.  It included basic applications, varieties of designs and the latest developments.  Case studies were presented of all levels of amputations using vairous types of vacuum pumps and various socket design variations.  Carl Caspers, the originator of elevated vacuum prosthetics,  reported that he is now recommending using flexible outer sockets rather than the rigid sockets typically used. This adds to comfort. He is also now texturing the inner appositional surfaces of the inner and outer socket materials to increase the friction. He stressed that friction between the vertical surfaces is a major contributor to good suspension in elevated vacuum sockets.