Related Manuals for ST&G L1311A
Summary of Contents for ST&G L1311A
- Page 1 Instructions for L1311A Weight Activated Brake Knee with Manual Lock ST&G USA Corp. Phone: (714) 524-0663 2691 Saturn St. Fax: (714) 364-8113 Brea, CA 92821 www.stngco.com...
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Page 2: Description And Purpose
1 Description and purpose Prosthetist instructions. ∙ L1311A knee is for lower limb prosthesis. ∙ Recommended for K1 up to K2. ∙ Weight limit for a user is up to 125kg / 275lbs ∙ Ability to lock knee in full extension as part of rehabilitation process. - Page 3 2. Construction Principal Parts Frame Aluminum Alloy Knee control Various materials principally Aluminum Alloy, Brass, Stainless Steel, Poly Urethane...
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Page 4: Safety Information
Enables easy switching between locked knee and free weight activated brake knee Overview Due to unique construction, the L1311A knee joint can be used both as a locking joint with manual release, and as a weight activated brake knee joint as the user's mobility progresses. -
Page 5: Maintenance
5 Maintenance ∙Maintenance must be carried out by qualified personnel. ∙Bi-Annual inspection is recommended. ∙Check for visual defects that may affect proper function. ∙A loaner system is available should servicing be required. The wearer should be advised: Any changes in performance of this device must be reported to the Clinician / Practitioner. -
Page 6: Alignment And Set-Up
Anterior to knee center (centerline of pylon) Alignment for the L1311A should be adhered to so as to enable a stable and safe functioning prosthesis for the wearer. The recommended alignment is 10mm anterior to the Knee Center which will have the weight line on the centerline along the length of the pylon. Weight line should also be along the centerline of the pylon in the sagittal plane so as to not promote undue stress on the knee joint axis. - Page 7 8 Knee Adjustment The L1311A is supplied by the factory in the basic setting. Carefully assess the brake function with the wearer during the dynamic initial fitting to see if the basic setting is optimal. If adjustment is necessary, it is best to start with the Stance Phase adjustment and then go to Swing Phase adjustments.
- Page 8 8.2 SWING PHASE - Friction Adjustment The Knee Friction Adjustment screw is located on the bottom anterior face. Adjust with a 3mm hex. (fig. 2) Knee friction adjustment is sensitive, so 1/8 turn will provide a notable difference! The knee friction effect may occur during initial swing (prosthesis sticks) depending on the user’s weight or walking habit.
- Page 9 8 Knee Adjustment 8.4 Unlocked Knee Mode - Manual Lock Disable Procedure Note: Lock should only be disabled by the prosthetist when patient has been released to have the ability to control the prosthesis without the need for the manual lock mechanism! Manual Lock Disable: Lock mechanism- •...
- Page 10 Fig. c Fig. e Turn till cable just protrudes from ferrule Make 45 degree cut Fig. d Start Ferrule Readjust length onto cable as needed Fig. f Setting the Lanyard Handle on the Cable: Once the retainer screw is mounted with the star nut on the socket (refer to “Attachment of Lanyard Handle Star Nut”...
- Page 11 Attachment of Lanyard Handle Star Nut: The Star Nut needs to be laminated into the socket. Depending on the nut supplied, the hole should be burnished through, and then: If the Star Nut is not threaded, drill out with 3mm drill bit and tap with 4mm tap. If the Star Nut is threaded, chase threaded nut to clean thread with 4mm tap.
- Page 12 Apply Masking tape over the whole area to enable a smooth and relatively flat blended in surface – if the screw sticks through the tape, that is ok. You want to be sure that the Star Nut is completely covered so it stays in place when the hole is either chased, or drilled and tapped.
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Page 13: Technical Specification
9 Technical Specification ∙Operating & Storage Temperature Range: -10˚C to 50˚C ( 14˚F to 122˚F) ∙Weight: 495g ∙Recommended Activity: K1, K2 ∙Maximum User Weight: 125kg (275lbs) ∙Maximum flexion angle (without socket): 145 degrees ∙Proximal Alignment attachment: Pyramid ∙Distal Alignment attachment: 30mm Tube Clamp ∙Tube clamp torque setting: 16Nm... -
Page 14: Warranty
This product meets the requirements of Council EU 2017/745 (EU) for medical products. This product has been classified as a class I product according to the classification criteria outlined in appendix IX of the guidelines. Please keep this manual in safe place for future use. L1311A IFU REV.F (07-12-24)
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