Össur i-digits Component Assembly Manual
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Össur i-digits Component Assembly Manual

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i-digits
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Component Assembly Guide

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Summary of Contents for Össur i-digits

  • Page 1 ™ Component Assembly Guide...
  • Page 2 This document provides instruction for prosthetists in the assembly of i-digits™ components necessary for the fabrication of i-digits™ prostheses. The instructions within should be read in full prior to fabrication. It is highly recommended that the use of this manual is made in conjunction with instruction from a clinician experienced in the use of i-digits™.

  • Page 3: Table Of Contents

    1.0 Wristband, Dummy Positioning and Digit Assembly 1.1 Positioning of the Socket Terminal Dummy 1.2 Removal of the Digit from the Knuckle 1.3 Extra Small and Medium Digit Assembly 1.4 Knuckle Mounting Plate 1.5 Attachment of the Knuckle Mounting Plate 1.6 Attachment of the Digit to the Knuckle Assembly 2.0 Transfer of Alignment 2.1 Thumb Alignment...

  • Page 4: Wristband, Dummy Positioning And Digit Assembly

    Wristband, Dummy Positioning and Digit Assembly Fig. 1: Positioning of the Socket Terminal Dummy Place the Socket Terminal Dummy on the Dorsal surface of the positive cast (fig. 1). The position should be central to the midline of the wrist and elbow joints. A distance of 30 mm should be left between the Socket Terminal Dum- my and the center of the wrist joint to enable good range of movement at the wrist (fig.

  • Page 5: Removal Of The Digit From The Knuckle

    Removal of the Digit from the Knuckle Fig. 4: Use the T6 Screwdriver to remove the M3 Grub Screw from the Knuckle Assembly (fig. 4). The digit can now be freely disengaged from the Knuckle Assembly. Extra Small and Medium Digit Assembly Fig.

  • Page 6: Knuckle Mounting Plate

    Knuckle Mounting Plate Fig. 7: The Knuckle Mounting Plate will support 4 digits. This Mounting Plate can be cut to suit the number of digits required for the user (fig. 7). Knuckle Mounting Modified Knuckle Mounting 6 of 25...

  • Page 7: Attachment Of The Knuckle Mounting Plate

    Fig. 8: Attachment of the Knuckle Mounting Plate Use the T6 Screwdriver to attach the Knuckle Assembly to a Multiple Knuckle Mounting Plate using three M2 x 6 mm Torx Screws. Lamination tabs can be bent or shortened as appropriate. Consider fabrication before cutting and removing tabs, since some tab length will be needed for fixation of the plate to the frame (fig.

  • Page 8: Transfer Of Alignment

    Transfer of Alignment Thumb Alignment Fig. 10: The use of the Thumb Alignment Plate is to aid the position of the Thumb Mounting Plate (fig. 10). Screw the thumb alignment plate onto the index position Knuckle Mounting Plate using three M2x5 mm screws. Depending on the handedness, attach the thumb rotation assembly to the correct side of the alignment plate (fig.
  • Page 9 Insert the Alignment Bars into the Single Knuckle Dum- Fig. 13: mies and lock each in place using M2 x 5 mm Countersunk Torx Screw and the T6 Screwdriver (fig. 13). 9 of 25...

  • Page 10: Inputs And Finishing Options

    Inputs and Finishing Options Fig. 14: LP Remote Electrode Domes The electrode domes will be assembled into the silicone using the parts shown in figure 14. Figure 15 shows how the dome will look once fabricated Lamination into the silicone. Dome Dummy Silicone Dome Dummy...

  • Page 11: Lp Compact Electrode

    Fig. 17: LP Compact Electrode - available 2019 Figure 17 shows the LP Compact electrodes along with the corresponding dummies in figure 18. Fig. 18: LP Compact Lamination Dummy LP Compact Suspension Dummy Fig. 19: Figure 19 shows the FSR control method. 11 of 25...

  • Page 12: Knuckle Fairing Options

    Knuckle Fairing Options Fig. 20: Components for direct lamination are shown in figure 20. Components for non-laminated fairings are shown in fig- ure 21. Fairing Knuckle Dummy Fig. 21: 12 of 25...

  • Page 13: Assembly

    Assembly Fig. 22: Thumb Rotator Assembly – Setting and Assembly The full thumb rotator assembly is illustrated (fig. 22). To increase the force required to rotate the thumb, remove the Nut Cap and use the 8 mm Spanner to tighten the M4 Locking Nut.

  • Page 14: Attaching The Thumb

    Attaching the Thumb Remove the base cap on the thumb rotator assembly by Fig. 24: removing the two M2x5 mm Screws (fig. 24). Remove the knuckle cover from the thumb assembly by Fig. 25: removing the two M2x4 mm Screws (fig. 25). Remove the knuckle assembly from the thumb assembly Fig.
  • Page 15 Using a torque driver set to 1 Nm, re-attach the thumb to Fig. 28: the single knuckle assembly (fig. 28). When inserting the M3 grub Screw into the single knuckle a T6 torque driver, set to 1.0 Nm, must be used (fig. 28). Screws supplied are recommended for single use only.

  • Page 16: Wristband Wiring Connections

    Wristband Wiring Connections Remove the bellows by pulling them over the socket end of Fig. 32: the assembly, as shown, to expose the PCB (fig. 32). Take care not to damage the PCB. Fig. 33: Slide the protective PCB cover out of the bellows assembly (fig.
  • Page 17 Slide the digit wires through the aperture at the front of the Fig. 35: bellows assembly (fig. 35). The digit wire connectors should be inserted into the bel- Fig. 36: low PCB. A click should be felt when fully inserted. Fig.

  • Page 18: Removing The Digit Wires

    Create slack in the digit wires, so that the bellow assembly Fig. 39: flexes without tension in the digit wires (fig. 39). If there is not enough slack, flexing of the bellows may lead to failure of the digit wire connection.
  • Page 19 The signal cables inserted in signal 1 position should be Fig. 42: routed as shown in figure 42. Check that there is no tension in the cables when flexed as Fig. 43: shown in figure 43 (similar to the digit wires approach as shown in figure 39).

  • Page 20: Removing The Electrode Cables

    Removing the Electrode Cables If the electrode cables need to be repositioned, use the ex- Fig. 44: traction tool supplied (fig. 44). Insert the end portion of the tool under the connector Fig. 45: flanges and pull off vertically, in the direction of the con- nector mating axis (fig.

  • Page 21: Fsr Pcb

    FSR PCB Fig. 47: FSR 1 FSR 2 If using an FSR wristband insert the FSR cables through the aperture at the socket end of the bellows. Insert the pairs of wires as shown in figure 47 using the same method as inserting the digit wires. Ensure click is heard indicating secure connection.

  • Page 22: Completing The Wristband Assembly

    Completing the Wristband Assembly Carefully, unplug the PCB from the wristband assembly. Fig. 48: Remove the two M2.5 Screws from the underside of the wristband and remove the bellows assembly (fig. 48). Slide the bellows cover back into position over the bellows. Fig.
  • Page 23 Attach the wristband to the socket using the M4 Socket Fig. 51: Button Head Screw (fig. 51 and 52). Fig. 52: 23 of 25...

  • Page 24: Digit Covers

    Digit Covers Attaching the Digit Covers Each digit must use a digit cover. These covers simply slide on over the digit (fig. 53 and 54). This also applies for the thumb cover (fig. 55 and 56). Fig. 54: Fig. 53: Fig.
  • Page 25 Össur Americas Össur Nordic Össur Europe BV – Italy 27051 Towne Centre Drive P.O. Box 67 Via Baroaldi, 29 Foothill Ranch, CA 92610, USA 751 03 Uppsala, Sweden 40054 Budrio, Italy Tel: +1 (949) 382 3883 Tel: +46 1818 2200 Tel: +39 05169 20852 Tel: +1 800 233 6263 Fax: +46 1818 2218...

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