uniprox JT01 User manual

JT01 - JT03
Monocentric Knee Joint
with Locking
unique prosthetic solutions
A company of the Bauerfeind GroupEin Unternehmen der Bauerfeind Gruppe – www.uniprox.de
Rev. 3 2022 1_JT01 JT03_101741
Qualität und Funktion
Gebrauchsanweisung
Instruction Manual
Uniprox GmbH & Co.KG
H. Heine Str.4
07937 Zeulenroda Triebes
Tel. [phone]
Fax [phone]
E Mail info @uniprox.de

Please read the IF carefully before fitting. Only correct usage will
warrant the function.
1. Intended se
The knee joints are the connection between a prosthetic socket and a modular
prosthetic limb prosthesis with monocentric knee function.
2. Technical data
•material: Aluminum (JT01, JT03)
Steel (JT02)
Titanium (JT02)
•have a locking mechanism to prevent unintended flexion
•locking mechanism can be released manually with the lanyard handle (e.g. when
sitting down)
•rear shifted axis
•connection proximal: pyramid
•connection distal: JT01, JT03: 30 mm pipe connection
JT02: pyramide
•max. weight : JT01: < 85 kg
JT02 St: < 125 kg
JT02 Ti: < 100 kg
JT03: <100 kg
•mobility level: 1
8 9
Order-
No.
Material Installation heigh
(above the axis /
center of rotation)
Weight Flexion
angle
Article No.
JT01 Aluminum 20 mm / 42 mm 295 g 140° 4 124 000 00 00 000
JT02 St Steel 24 mm / 80 mm 560 g 120° 4 126 000 00 22 000
JT02 Ti Titanium 24 mm / 80 mm 405 g 120° 4 126 000 00 33 000
JT03 Aluminium 35 mm / 56 mm 295 g 150° 4 127 000 00 00 000
2.1 Service Parts for JT01 and JT02
2.2 Service Parts for JT03
3. Indication/ Contraindication
Indicationen:
•transfemoral amputation
Contraindicationen:
•not known
4. Side effects
There are no known side effects.
Order-No. Description For Knee joint Article No.
E JT03 01 Axis bearing JT03 4 127 009 01 00 000
E JT03 02 Knee lock cable JT03 4 127 009 03 00 000
E JT03 03 Clamp liner for lock JT03 4 127 009 05 00 000
E JT03 04 Clamp screw JT03 4 127 009 07 00 000
Order-No. Description For Knee joint Article No.
E JT01 01 Knee cap JT01 JT01 4 124 009 01 00 000
E JT01 02 Holding device (0 Ring) JT01 4 124 009 02 00 000
E JT01 03 Extension stop, per unit JT01 4 124 009 09 00 000
E JT01 04 Lock handle, complete JT01, JT02 4 123 009 01 00 000
E JT01 05 Cable Clamp JT01, JT02 4 124 009 11 00 000
E JT01 06 Threaded fitting, short JT01, JT02 4 124 009 12 00 000
E JT02 01 Knee cap JT02 JT02 4 126 009 01 00 000
E JT02 02 Spring guide housing JT02 4 126 009 04 00 000
E JT02 03 Spring JT02 4 126 009 10 00 000
E JT02 04 Cap screw M4x8 JT02 4 126 009 12 00 000

6 11
5. General safety instructions
•This medical device is designed for single patient, multiple use.
•Fitting/service of this medical device is only allowed by a certificated orthopedic
professional.
•The professional should instruct the correct use of the device to the user.
•The joint must be protected against dust, moisture, aggressive media, and
mechanical forces so its function is not affected.
•The joint is intended for use at temperatures from 10°C to 50°C.
•Do not longer use the knee joint if its function is impaired. This may be due to
stiffness,restricted extension, noise generation, faulty swing phase control or
stance phase safety, as well as impact from an external force (for example, if
dropped). In such cases, it must be checked by a professional and, if necessary,
sent to Uniprox GmbH & Co. KG.
•There is a risk of jamming when the joint is in use.
•The product must not be changed or applied in any improper way. Non compliance
can impair the function of the product and thus no liability will be accepted.
•The safety of the user is not guaranteed if the product is not used for its intended
purpose. This will also terminate the warranty of the product.
•Joint components may heat up slightly during walking.
•Silicone spray should be used to prevent noises being generated by contact
between the cosmetic foam and knee joint. Do not use Talcum powder as it
removes lubricant from the bearings and may lead to impaired function as a result.
6. Installation
6.1 Alignment and Adjustment JT01
•The axis of rotation of the Modular Knee Joint JT01 is to position to the back by 10
to 20 mm with respect to the weight bearing line of the prosthesis.
•The Modular Knee Joint JT01 is already adjusted by the manufacturer, so it is ready
to be installed.
•The stop screw (see in picture No. 1 on page 5) is secured with Loctite. A minor
movement of the locking mechanism doesn´t impair the functioning! The locking
mechanism can be adjusted with the stop screw.
•Proceed as follows:
Loosen rubber ring (2) from the plastic cap (3), release locking and flex
knee joint.
Adjust the movement with a 6 mm Allen wrench.
•Turning to the right = more movement
•Turning to the left = less movement
Attention!
After adjustment by the stop screw be sure, that
the locking mechanism gets engaged and the joint
is locked reliably.
Secure head of the stop screw (1) with Loctite 222.
6.2 Alignment and Adjustment JT02
•The axis of rotation of the Modular Knee Joint JT02 is to position to the back by 10
to 15 mm with respect to the weight bearing line of the prosthesis.
•To adjust the locking function unlock and flex the knee joint until the set screw (1)
becomes visible.
Turning to the right =
reducing the hyperextension movement
Turning to the left =
increasing the hyperextension movement
Reducing the hyperextension movement makes it more difficult for the lock
to engage as well as to disengage.
3
1
2

4 13
Exchanging the Compression Spring
•Press the brass spring guide pin (1) downward using the flat blade of a screw
driver, until the notch of the pin disengages from the axis pin (2)
•Re Installation: Put the notch of the spring guide pin from below into the axis pin.
Push the head of the spring guide housing with your thumb into the receptacle of
the lower joint section.
Compensating for Mediolateral Movement
Remove the safety plate, tighten the axis nut (wrench size 17 mm) and secure by
installing the safety plate afterwards.
6.3 Alignment and Adjustment JT03
•The axis of rotation of the Modular Knee Joint JT03 is to position to the back by 12
mm with respect to the weight bearing line of the prosthesis.
•The Modular Knee Joint JT03 is already adjusted by the manufacturer, so it is ready
to be installed.
•In the locking position the knee joint JT03 has no movement. A later adjustment of
the locking mechanism is not possible.
1
2
7. Maintenance and Cleaning
The function of the prosthetic knee joint must be checked at regular intervals of no
more than 12 months.
In the case of intensive use, we recommend a review, if necessary at shorter intervals.
Maintenance or repair must be carried out when necessary.
The monocentric knee joints can be cleaned with a mild cleanser and
a damp (<30°C).
Do not use any aggressive cleansers.
8. CE- Conformity
The product satisfies the requirements of Regulation (EU) 2017/745 of the European
Parliament and of the Council (MDR) and bears the CE mark. All major incidents related
to the product needs to be informed to Uniprox and the competence European
Authority.
9. Warranty and Guarantee
Depending on the degree of usage, the knee joints can generally be used for 5 years
with regular maintenance.
Warranty is provided under the terms of sale and supply of Uniprox GmbH & Co. KG
provided that the above conditions are met.
10. Storage and Disposal
This product has no special storage regulations.
The product is disposable with standard household garbage.
Please direct any questions to:
Customer Service: + 49 (0) 36628 66 33 70
Fax: + 49 (0) 36628 66 33 77
E mail: [email protected]