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Explanation of symbols
Warnings regarding possible technical damage.
NOTICE
Important information on the fitting/use.
INFORMATION
INFORMATION
Last update: 2020-04-16
• Please read this document carefully before using the product and observe the safety notices.
• Instruct the user in the safe use of the product.
• Please contact the manufacturer if you have questions about the product or in case of pro-
blems.
• Report each serious incident in connection with the product, in particular a worsening of the
state of health, to the manufacturer and to the relevant authority in your country.
• Please keep this document in a safe place.
The 21Y97 Valve provides the detachable connection between the flexible socket and the distal
portion of the socket frame (for example in the ISNY Socket). The valve kit comprises all parts
including patterns which are required for adequate installation.
For lateral installation use 21Y105 Valve Kit (without tube).
1 Parts (Fig. 1)
(1) 21Y101 Pattern for Vacuum Forming, with wood screw
(2) 21Y102 Pattern for Laminating, with countersunk screws M5
(3) 21Y99=10 Insert Ring
(4) 21Y98 Lamination Collar with 21Y103 Seal Ring
(5) 21Y40=40 Flat Rubber Valve with 21Y77 Tube and Seat Ring
(6) 4Z8 Screw-in Aid
2 Safety instructions
NOTICE
Risk of damage if using powder. Any kind of powder on the inner side of the socket or on
the skin can restrict or disable the functionality of the valve during use. Avoid using powder in
areas close to the valve.
3 Instruction for installation
The valve can be provided at the distal end, centrally or laterally, depending on the length of the
residual limb. Detailed instruction for the fabrication of an ISNY Socket using the 21Y97 Valve is
given in the Technical Information bulletins 2.3.5 and 2.3.6.
Hold the 21Y101 Pattern for Vacuum Forming in position at the distal end of the plaster cast using
a wood screw (Fig. 2).
6 | Ottobock
English
21Y97
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