Instructions for use
Screwdriver angled 90°
WS-90
Contents
W&H symbols........................................................................................... 3 – 4
1. Introduction ........................................................................................ 5 – 7
2. Before use – safety notes ........................................................................... 8 – 9
3. Product description WS-90..............................................................................10
4. Operation......................................................................................... 11 – 17
Assembly/removal , rotating instruments, changing the rotating instrument,
use of the bolt retainer and the retaining clip, test run
5. Hygiene and maintenance .........................................................................18 – 33
General, pre-disinfection, disassembly, manual cleaning, manual disinfection,
mechanical cleaning and disinfection, reassembly, oil service, sterilization
6. W&H accessories ......................................................................................34
7. Technical data ....................................................................................35 – 36
8. Recycling and disposal ............................................................................37 – 38
Explanation of warranty terms ..............................................................................39
Authorized W&H service partners ...........................................................................40
2
W&H symbols
Symbols in the instructions for use
WARNING!
(risk of injury)
UL quality mark for
approved components
for Canada and the USA
ATTENTION!
(to prevent damage
occurring)
Caution:
According to the federal law of the USA, the sale of this device is only permitted
by or on instruction of a dentist, a doctor or another medical practitioner who is
licensed to work in the state in which they are practising and in which they
want to use or arrange the use of this device.
General explanations,
no risk to persons or
objects
Do not dispose of with
domestic waste
3
W&H symbols
Symbols on the screwdriver angled 90°
CE 0297
from manufacturer
Sterilizable up to the stated
temperature
Catalogue number
REF
Serial numberThermo washer disinfectable
SN
Date of manufacture
Data matrix code for product
identification e.g. for hygiene/
maintenance processes
Equipment number
EN
4
1. Introduction
Customer satisfaction is the main priority of the W&H quality policy. This W&H product has been developed,
manufactured and subjected to final inspection according to legal regulations, quality norms and industry
standards.
For your safety and the safety of your patients
Please read the instructions for use booklet before using this product for the first time. This explains to you how to
use your W&H product and guarantees smooth, efficient and safe operation.
Intended use
Surgical treatment of dental hard tissue.
Misuse can damage the screwdriver angled and involves risk and danger to the patient, user and third parties.
5
Qualifications of the user
Only suitably qualified medical, technical and specialist trained staff may use the screwdriver angled. We have based
our development and design of the screwdriver angled on the »physician« target group.
Production according to EU directive
The screwdriver angled is a medical product according to EU Directive 93/42/EEC.
Responsibility of the manufacturer
The manufacturer can only accept responsibility for the safety, reliability and performance of the screwdriver
angled when the following directions are complied with:
> The screwdriver angled must be used in compliance with these instructions for use.
>
The screwdriver angled contains no parts which are repairable by the user. Modifications or repairs must
only be undertaken by an authorized W&H service partner (see page 40).
6
Skilled application
The screwdriver angled is intended only for skilled application in surgery according to its purpose of use in
compliance with the valid health and safety at work regulations, the valid accident prevention regulations as well as
in compliance with these instructions for use. The screwdriver angled should only be prepared for use and
maintained by staff who have been trained in procedures for infection control, personal safety and patient safety.
Improper use (e.g. poor hygiene and maintenance), non-compliance with our instructions or the use of accessories
and spare parts which are not approved by W&H, invalidate all claims under warranty and any other claims.
Service
If you observe any problems, contact an authorized W&H service partner immediately (see page 40). Repair and
maintenance work must only be carried out by an authorized W&H service partner.
7
2. Before use – safety notes
> The operation of the screwdriver angled is permitted only on drive units which comply with the medical
device directives.
> Always ensure that you have the correct operating conditions
> Check the screwdriver angled for damage and loose parts prior to use (e.g. retaining clip).
> Do not operate the screwdriver angled if it is damaged.
> Only fit the screwdriver angled when the motor is at a complete standstill.
> Never touch the rotary instrument when it is still rotating.
> Carry out a test run prior to each use.
> Avoid overheating at the treatment site.
> Unintended use may result in the screwdriver angled getting hot (risk of burning)!
> Always ensure that you have a second right angled screwdriver ready for use during the operation.
.
8
Hygiene and maintenance prior to initial use
> Oil service prior to initial use.
> Sterilize the screwdriver angled and the hand drive.
> Oil service page 30
> Sterilization page 32
9
3. Product description WS-90
Screwdriver angled 90°
Head
Sheath
Shaft
Tension clamp
Bolt retainer
Retaining clip
Clip
Hand drive
Symbol description
❍ = Sheath open
= Sheath locked
10
4. Operation
Assembly/removal
Place the screwdriver angled on the motor
or hand drive.
Check that the connection to the motor
or hand drive is secure.
Remove the screwdriver angled using axial
tension or by pressing the unlocking button.
Do not assemble/remove
during operation!
11
Rotating instruments (bur and screwdriver blade)
> Only use rotary instruments which are in perfect condition and pay attention to the direction of rotation of
rotating instruments. Observe the manufacturer’s recommendations.
> Insert the rotary instrument only when the screwdriver angled is stationary.
> Only use the screwdriver blade with the hand drive.
> Never touch rotary instruments which are still rotating.
> Never touch the tension clip of the screwdriver angled during
use. This leads to detachment of the rotary
instrument and/or overheating of the screwdriver angled.
12
Changing the rotary instrument
Push the tension clip forwards in an axial direction.
Then insert the tool into the head until it reaches
the stop.
Turn the tool in order to make sure that it is
fully inserted.
Pull the tension clip completely backwards in the
axial direction until it engages.
Check that the tool is secure by applying
axial tension.
13
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