Thermoplastic Guide
Transcription
Thermoplastic Guide
7) Place the socket on the socket post and use a hand cutter or drill press cutter to mill the out side surface parallel to the inside socket surface. This step is essential to reduce stress and shear forces on the puck and connecting bolts. 8) Place the socket on the side hole Jig and secure it with the center bolt and nut. Drill out the side hole for the valve (AIRPUCK ONLY). Use 3/4” plastic bit. 8 1) Bond dummy in correct alignment onto the flattened surface of the distal end of the model. (see Model prep guide) Drill hole all the way through the model so vacuum can reach the top of the molding dummy. Address the transition between the dummy and model. See model prep and distal end guide for options. 7 2) Install socket cap screws into the Thermo Dummy. Thread all the way down so the screws stand 1/4 inch off of the bottom of the dummy (this will help establish an even 1/4 distal socket thickness). 7 7 8 8 9) Install AirPuck OR SmartPuck. TM No Tooling Thermo Fab TM 3) Pull Thermoplastic socket. Pull the plastic directly against the molding dummy. No nylons should be used over molding dummy. Plastic must be an excellent pull with perfect contact around the molding dummy body. This is the sealing surface. It is critical the plastic conforms to the side wall of the dummy and is smooth on the interior. Pull socket with Thermolyn or Surlin type material. Use a flat disk to compress the distal end of the pulled plastic. 1 4) Grind the plastic down to the socket cap screws. Keep distal surface parallel to the dummy surface. 5) Drill push plate recess with the PDI Push plate guide. 5) Mark and drill the side hole (AIRPUCK ONLY) with a 3/4” plastic bit. Split the difference between adjacent cap screws and draw a bisection line up the side of the molding dummy. Measure up 11mm from the base of the molding dummy (distal end). 6) Insert PDI Push Plate. 7) Install the FET-SmartPuck thermoforming dummy (Designed for foam extraction tooling.) 5 8) Use the center hole guide and drill the center air hole through the model. Thermoform the socket. If nylons are used over model, tuck them under the FET Dummy. 6) Install AirPuckTM OR SmartPuck.TM Cad Fabrication 1) Rectify Model with established vacuum modifications. Save Model. 2 2) Add a 1mm (high) X 68mm(wide) extension to the bottom of the model. Save Model. 1 4) Carve Model. 7 6 8 2 3) Add a 15mm (high) X 57mm (wide) extension to the previous extension. Save Model. 3 5 5280 PROSTHETICS, LLC Puck Thermoplastic Guide 1501 WEST CAMPUS DRIVE, SUITE J | LITTLETON, CO 80120 3 4 1(800) 460-0288 | www.5280Prosthetics.com | www.Smartpuck.net Copyright ©2013 by 5280 Prosthetics, LLC • Patent Pending • Version 03/15/2013 5280 PROSTHETICS, LLC | 1-800-460-0288 Rules of the game: Thermoplastic Fab with PDI® Tooling 1) Nothing touches or contacts the molding dummy (no nylons, build ups, foam etc. This is the surface in which the puck will seal against). 2) The plastic pull must be perfect with excellent vacuum (drill a hole all the way through the model so vacuum gets to the distal end). 3) The interior of the void must be glass smooth. 4) The socket must be fabricated such that the dummy can be removed (and the puck installed). NOTE: For Thermoplastic check sockets we strongly recommend Thermolyn Stiff (Otto Bock) or similar. These materials are more durable with less chance of failure. Because of the drop in nature of the SmartPuckTM and AirPuckTM systems, it is often necessary to fill the gap between the molding dummy and the model. This can be accomplished pre-fabrication by one of the following: 1) U sing a flexible inner socket. 2) M olding a distal pad prior to fabrication. OR Accomplished post-fabrication by filling the gap with plaster and one of the following: 1) U sing the 5280 distal end injection tool. 2) F orming a fast setting silicone putty ring and placing it in the distal socket while the patient bears weight in the prosthesis. See the model prep and distal end guide for more information. 2) Pull Thermoplastic socket. Pull the plastic directly against the molding dummy. No nylons should be used over molding dummy. Plastic must be an excellent pull with perfect contact around the molding dummy body. This is the sealing surface. It is critical the plastic conforms to the side wall of the dummy and is smooth on the interior. 1) Bond dummy in correct alignment onto the flattened surface of the distal end of the model. (see Model prep guide) Drill hole all the way through the model so vacuum can reach the top of the molding dummy. Address the transition between the dummy and model. See model prep and distal end guide for options. This air hole will serve as the centering hole for thermoplastic tooling. 4 4) Break out model or extract model. Widen center hole with a 3/8” step bit. 2 3) Drill a hole back up through the predrilled air hole at the bottom of the model with a long 1/4 drill bit. This is the centering hole for the Euro four hole drill guide. 1 3 4 5 5 5) Place the four hole drill guide in the distal end of the socket. Orient the four hole pattern as desired. Tighten the center bolt to secure the guide in place. 3 6) Drill out the four hole pattern. Be sure to keep the drill bit straight so the pattern is not off set. more>>> 5280 PROSTHETICS, LLC 6 1501 WEST CAMPUS DRIVE, SUITE J | LITTLETON, CO 80120 1(800) 460-0288 | www.5280Prosthetics.com | www.Smartpuck.net Copyright ©2013 by 5280 Prosthetics, LLC • Patent Pending • Version 03/15/2013