Re: Socket materials for Transfemoral elevated vacuum
Jon Batzdorff
Description
Collection
Title:
Re: Socket materials for Transfemoral elevated vacuum
Creator:
Jon Batzdorff
Date:
10/13/2009
Text:
Hi,
You may share this with other replies.
I just gave the lecture on transfemoral elevated vacuum prostheses at the
AAOP certificate course in Chicago and I recently launched a blog called
elevatedvacuum.blogspot.com. It is still in its infancy but I will have all
the links I can find on elevated vacuum and encourage exchange of
information on techniques such as the ones you are asking about. I will be
glad to upload videos, photos and descriptions of any fabrication techniques
I use and encourage others to use the blog to share with our colleagues as I
am doing.
As far as your question, some of us who are using elevated vacuum for
transfemoral are finding that we gain so much stability from the vacuum
(must be at least 13 Hg but better if closer to 26 Hg) that we can modify
our designs so that they need not extend above the ischium. They can only be
done on longer residual limbs and you must incorporate a system in the
socket/liner connection to control rotation. I recommend a double wall
socket design to maximize suspension without the possibility of losing
vacuum throughout the range of hip motion. As far as flexibility, the brim
of the socket can be fabricated with Proflex with silicon to ease sitting
comfort, walking comfort, and wear and tear on the inner flexible materials.
Of course, using elevated vacuum with high vacuum levels and lowing the
trimlines requires a dead-on socket fit.
Feel free to e mail me for more fitting or fabrication details or post a
question on the blog.
Jon Batzdorff, CPO
Sierra orthopedic Lab,
Santa Rosa, CA
-----Original Message-----
From: Orthotics and Prosthetics List [mailto:<Email Address Redacted>] On
Behalf Of Straub, Greg
Sent: Monday, October 12, 2009 3:42 PM
To: <Email Address Redacted>
Subject: [OANDP-L] Socket materials for Transfemoral elevated vacuum
Dear Colleagues,
I've heard that some creative practitioners out there are designing sockets
for Transfemoral elevated vacuum with lowered proximal trim lines that are
rigid distally but flexible proximally. Any input regarding techniques or
materials would be appreciated. Similar input for Transtibial sockets would
also be helpful.
Greg Straub, CPO
You may share this with other replies.
I just gave the lecture on transfemoral elevated vacuum prostheses at the
AAOP certificate course in Chicago and I recently launched a blog called
elevatedvacuum.blogspot.com. It is still in its infancy but I will have all
the links I can find on elevated vacuum and encourage exchange of
information on techniques such as the ones you are asking about. I will be
glad to upload videos, photos and descriptions of any fabrication techniques
I use and encourage others to use the blog to share with our colleagues as I
am doing.
As far as your question, some of us who are using elevated vacuum for
transfemoral are finding that we gain so much stability from the vacuum
(must be at least 13 Hg but better if closer to 26 Hg) that we can modify
our designs so that they need not extend above the ischium. They can only be
done on longer residual limbs and you must incorporate a system in the
socket/liner connection to control rotation. I recommend a double wall
socket design to maximize suspension without the possibility of losing
vacuum throughout the range of hip motion. As far as flexibility, the brim
of the socket can be fabricated with Proflex with silicon to ease sitting
comfort, walking comfort, and wear and tear on the inner flexible materials.
Of course, using elevated vacuum with high vacuum levels and lowing the
trimlines requires a dead-on socket fit.
Feel free to e mail me for more fitting or fabrication details or post a
question on the blog.
Jon Batzdorff, CPO
Sierra orthopedic Lab,
Santa Rosa, CA
-----Original Message-----
From: Orthotics and Prosthetics List [mailto:<Email Address Redacted>] On
Behalf Of Straub, Greg
Sent: Monday, October 12, 2009 3:42 PM
To: <Email Address Redacted>
Subject: [OANDP-L] Socket materials for Transfemoral elevated vacuum
Dear Colleagues,
I've heard that some creative practitioners out there are designing sockets
for Transfemoral elevated vacuum with lowered proximal trim lines that are
rigid distally but flexible proximally. Any input regarding techniques or
materials would be appreciated. Similar input for Transtibial sockets would
also be helpful.
Greg Straub, CPO
Citation
Jon Batzdorff, “Re: Socket materials for Transfemoral elevated vacuum,” Digital Resource Foundation for Orthotics and Prosthetics, accessed November 26, 2024, https://library.drfop.org/items/show/230864.
