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6

DEUTSCH

ENGLISH 

FRANÇAIS

ITALIANO

ESPAÑOL

NEDERLANDS

PORTUGUÊS

SVENSKA

© HAAG‑STREIT AG, 3098 Koeniz, Switzerland ‑ HS‑Doc. no. 1500.7006000‑04270 – 2022 – 09

NOTE!

• Only those disinfectants tested by Haag-Streit for material compatib-

ility may be used for disinfection.

• The current list is enclosed with every tonometer and measuring

prism and can also be found on the Haag-Streit website (www.haag-

streit.com).

• The separate instruction manual on the cleaning and disinfection of

tonometer measuring prisms and contact lenses is to be consulted

regarding the exact functioning, concentration, working times, and

idle times.

• Improper preparation can result in the transmission of diseases to

the patient and user as well as damage to the measuring prisms.

• Residue from cleaning agents and disinfectants may irritate and

burn the patient’s eye.

• As a rule, the measuring prisms may be prepared together but

should not be prepared with any other products.

• In order to achieve efficient disinfection of tonometer measuring

prisms, we recommend using one of the validated disinfection

agents (see separate instruction manual on the cleaning and disin-

fection of tonometer measuring prisms and contact lenses.

• The validation report is available from Haag-Streit on request.

• A summary of the validation report can be found on the Haag-Streit

website (www.haag-streit.com).

• The operator accepts all liability for the use of other disinfection

agents.

• Single-use prisms must be replaced after every examination − see

separate instructions for use.

• The above-mentioned instruction manual, the brief instructions Dis-

infection of tonometer measuring prisms and contact lenses, and ad-

ditional information can always be found on our website www.haag-

streit.com.

1.6.2 Visual inspection of the measuring prisms for damages

DANGER!

Never use damaged measuring prisms.

Prior to every use, the contact surface of the measuring prism must be

inspected for contaminants and damage (scratches, cracks and sharp

edges).

This must be performed with a slit lamp microscope at 10×

to 16× magnification.

1.6.3 Period of use of reusable measuring prisms

WARNING!

How long may measuring prisms be used?

Due to the large number of variables to be considered (type and con-

centration of the disinfectants used, number of patients, handling etc.) it

is practically impossible to provide exact information on how often and/

or how long a measuring prism can be safely used.

The measuring prisms are stamped with an expiry date ( YYYY-MM-

DD). They must not be used beyond this date. Haag-Streit recommends

a maximum period of use of two years before the expiry date. This peri-

od of use applies subject to normal conditions of use, i.e. in compliance

with the instructions contained in these instructions for use. The period

of use begins with the first application. The given time periods are not

valid for damaged measuring prisms, they must be immediately re-

placed.

Summary of Contents for AT 900

Page 1: ...GLISH FRAN AIS ITALIANO ESPA OL NEDERLANDS PORTUGU S SVENSKA HAAG STREIT AG 3098 Koeniz Switzerland HS Doc no 1500 7006000 04270 2022 09 INSTRUCTIONS FOR USE Applanation tonometer AT 900 AT 870 27 Edi...

Page 2: ...ly with the regulations in these instructions for use we can guarantee reliable and trouble free use of our product WARNING Applanation tonometry may only be conducted by appropriately trained and qua...

Page 3: ...ment 8 2 4 Clinical benefit 8 3 Introduction 9 3 1 Overview 9 4 Device assembly installation 9 4 1 AT 900 model R 9 4 2 AT 900 model T 9 4 3 AT 900 model BQ 9 4 4 Tonometer AT 870 9 4 5 Which slit lam...

Page 4: ...ing shows traces of im proper handling or damage If this is the case notify the transport company that delivered the goods to you Unpack the device together with a representative of the transport comp...

Page 5: ...hanges the biomechanical properties of the cornea The biomechanical properties of the cornea have an effect on the measurement readings 1 6 Disinfection NOTE The applanation tonometer can but does not...

Page 6: ...The operator accepts all liability for the use of other disinfection agents Single use prisms must be replaced after every examination see separate instructions for use The above mentioned instruction...

Page 7: ...the product This would void all guarantee claims Continued use of a damaged product may lead to personal injury In such a case the manufacturer will not accept any liability Haag Streit does not gran...

Page 8: ...2 3 1 Contraindications The list of known contraindications includes but is not limited to the following medic al conditions Active corneal infections Corneal epithelial defects Ocular chemical burn...

Page 9: ...trained specialists 4 1 AT 900 model R A pivot is required for use of the Applanation Tonometer AT 900 model R on the BM 900 slit lamp It is assembled as follows 1 Unscrew the mounting screw found at...

Page 10: ...ts from the bottom side into the beam path of the microscope and the illumination The Applanation Tonometer AT 900 model BQ has a working position and two resting positions To set the correct angle of...

Page 11: ...red IOP A normal corneal thickness is considered to fall within the range of 530 to 560 micrometre If it is suspected that measuring results may be inaccurate please conduct a functional verification...

Page 12: ...through observation with the wrong eyepiece adjustment can lead to false results 6 6 Measuring correctly NOTE Make sure that the measuring arm of the tonometer can move freely and is not hindered by t...

Page 13: ...he measuring prism is touching the eye only intermittently If the patient pulls back even further the fluorescein rings will disappear com pletely Instruct the patient to adopt the correct position On...

Page 14: ...mp up wards Nearly entire circle above incomplete circle below 11 Measuring prism not centred on the eye eye still too high Using the control lever move the slit lamp up wards Two incomplete circles t...

Page 15: ...ght Installation AT 900 model R Can be fitted on the peg on the microscope AT 900 model T Can be fitted on the guide plate on the swivelling peg for the microscope and illumination arm AT 900 model BQ...

Page 16: ...evice should be cleaned weekly as described We recommend having the device checked annually by an authorised service tech nician 8 2 Cleaning and disinfection Tonometer housing and sensor arm can if r...

Page 17: ...AT 870 Check the drum position 0 Check position 0 05 The zero line on the measuring drum is moved downwards opposite the index by a single marking width The feeler arm must move by itself all the way...

Page 18: ...suring drum s calibration mark 6 down wards opposite the index by a interval The feeler arm must move towards the examiner Check position 6 1 The check point is at 6 1 Move the measuring drum s calibr...

Page 19: ...on of the patient The feeler arm must move towards the patient Check position 1 95 Move calibration mark 2 on the measuring drum downwards opposite the fixed index by a width of one marking With light...

Page 20: ...n of the measuring prism and the separate instructions for use 9 3 Tonosafe disposable prisms Tonosafe disposable prisms are a comfortable and ef fective solution to reduce the risk of cross infection...

Page 21: ...ould you have any further questions please contact your Haag Streit representative at www haag streit com haag streit group contact haag streit distributors distributors HAAG STREIT AG Gartenstadtstra...

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