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INSTRUCTIONS FOR USE

Applanation tonometer

AT 900

/ AT 870

26. Edition / 2020 – 03

1500_7006000_04260_Gebrauchsanweisung-AT-900_01_eng.indd 1

19.03.2020 07:01:45

Содержание AT 870

Страница 1: ...niz Switzerland HS Doc no 1500 7006000 04260 26 Edition 2020 03 INSTRUCTIONS FOR USE Applanation tonometer AT 900 AT 870 26 Edition 2020 03 1500_7006000_04260_Gebrauchsanweisung AT 900_01_eng indd 1 1500_7006000_04260_Gebrauchsanweisung AT 900_01_eng indd 1 19 03 2020 07 01 45 19 03 2020 07 01 45 ...

Страница 2: ...specially indicated in Glaucoma disease Contraindication There is no absolute contraindication for execution of the tonometry Appropriate professional assessment and caution are necessary The list of known contraindica tions includes but is not limited to active corneal infections corneal epithelium defects eye burns history of recurring epithelial erosion etc WARNING Applanation tonometry may onl...

Страница 3: ...eter 7 3 6 Description of models 8 4 Commissioning 8 5 Operation 8 5 1 Astigmatism 8 5 2 How pressure is measured 8 5 3 Preparing the patient 8 5 4 Patient instructions 9 5 5 Preparation of slit lamp and tonometer 9 5 6 Measuring correctly 9 5 7 Sources of error 10 5 7 1 Wrong distance to patient 10 5 7 2 Position too far to the right left 10 5 7 3 Position too high low 11 5 7 4 Incorrect pressure...

Страница 4: ...t company Make a report of any damaged parts This report must be signed by you and by the representative of the transport company Leave the device in the packaging for a few hours before unpacking it condensa tion Check the appliance for damage after it is unpacked Return defective appliances in the appropriate packaging Store packaging material carefully so that it can be used for possible return...

Страница 5: ...on of diseases to the patient and user as well as damage to the measuring prism Residue from cleaning agents and disinfectants may irritate and burn the patient s eye As a rule the measuring prisms may be prepared together with each other but not with any other products In order to achieve efficient disinfection of tonometer measuring prisms we recommend using the disinfectant Sekusept Forte S It ...

Страница 6: ...for the purposes and in the manner des cribed in the documents distributed with the product The product must be treated as described in the Safety chapter Improper hand ling can damage the product This would void all guarantee claims Continued use of a product damaged by incorrect handling may lead to personal injury In such a case the manufacturer will not accept any liability Haag Streit does no...

Страница 7: ...n the pivot s pin and swivel the tonometer to the right until it snaps into position The tonometer will remain in this position even when not in use 5 When using the BI 900 BM 900 and BM 900 V the stop peg must be assembled a and when using the BC 900 or BD 900 it must be removed b b a 3 2 AT 900 model T The Applanation Tonometer is tucked into one of the holes on the horizontal guide plate over t...

Страница 8: ...E A smooth operation can only be guaranteed with the use of original Haag Streit measuring prisms and Tonosafe 5 Operation WARNING Reusable measuring prisms must be cleaned and disinfected after ev ery examination 5 1 Astigmatism If the cornea is spherical measurements can be taken on any meridian but it is most convenient to measure on the 0 meridian The choice of meridian is of significance howe...

Страница 9: ...atient s eyelids should this be necessary for measure ment The illumination of the applanated surface through the measuring prism is practically reflection free Observation with AT 900 model R in the left eyepiece with AT 900 model BQ in the right eyepiece AT 900 model T 1 For an examination through the tonometer s left or right eyepiece the angle between the illumination instrument and the micros...

Страница 10: ...he tear fluid dried during the longer lasting measuring Allow the patient to close his eyes a few times and then re peat the measurement 5 7 1 Wrong distance to patient No semi circular image only centre line is visible 3 3 The measuring prism is not coming into contact with the cor nea If the patient draws his head back slightly irregular pulsa tions will be caused because the measuring prism is ...

Страница 11: ...the eye eye still too high Using the control lever move the slit lamp upwards Two incomplete circles the larger one on top 13 12 Measuring prism not centred on the eye eye still too high Using the control lever move the slit lamp upwards Correct setting 14 13 Two semicircles appear exactly in the middle of the eyepiece 5 7 4 Incorrect pressure The outside borders of the fluorescein bands are in co...

Страница 12: ...2 Maximum limiting deviation 3 Limiting deviation of 0 to 32 66 mN Maximum 0 49 mN 4 Limiting deviation from 32 67 mN Maximum 1 5 of nomi nal value 4 3 0 49 mN 0 49 mN 32 66 mN 0 mN 1 2 2 7 Maintenance WARNING Installation repairs and modifications may only be performed by trained specialists Do not repair or service the device while it is being used on the pa tient 7 1 Repairs To ensure a long se...

Страница 13: ...he 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 to the stop piece in the direction of the examiner Check position 0 05 The zero line on the measuring drum is moved upwards opposite the index The feeler arm must move all the way to the stop piece on the patient s side 0 05 0 05 Check the drum position ...

Страница 14: ... the measuring drum s calibration mark 6 upwards opposite the index by a interval The feeler arm must move towards the patient 5 9 6 1 7 4 Checking the Tonometer AT 870 NOTE This check must be carried out once a month If the check yields errone ous results please check the following points 1 Is the measuring prism properly positioned 2 Is the control weight correctly set 3 Repeat the check Defecti...

Страница 15: ... of one marking With light pressure to the feeler arm in the direction of free movement the feeler arm must start to move independently towards the limit stop in the direction of the examiner Check position 2 05 Move calibration mark 2 on the measuring drum upwards opposite the fixed index by a width of one marking The feeler arm must start to move into direction of the stop piece on the patient s...

Страница 16: ...eaning and disinfect ing the measuring prism and the separate instructions for use A 3 Tonosafe disposable prisms Tonosafe disposable prisms are a comfortable and effective solution to reduce the risk of cross infection in patients To nosafe is available in sterile packages with 5 supports and 100 disposable prisms B Legal regulations Haag Streit maintains a quality management system in accordance...

Страница 17: ...TUGUÊS SVENSKA HAAG STREIT AG 3098 Koeniz Switzerland HS Doc no 1500 7006000 04260 26 Edition 2020 03 1500_7006000_04260_Gebrauchsanweisung AT 900_01_eng indd 17 1500_7006000_04260_Gebrauchsanweisung AT 900_01_eng indd 17 19 03 2020 07 02 47 19 03 2020 07 02 47 ...

Страница 18: ...TUGUÊS SVENSKA HAAG STREIT AG 3098 Koeniz Switzerland HS Doc no 1500 7006000 04260 26 Edition 2020 03 1500_7006000_04260_Gebrauchsanweisung AT 900_01_eng indd 18 1500_7006000_04260_Gebrauchsanweisung AT 900_01_eng indd 18 19 03 2020 07 02 47 19 03 2020 07 02 47 ...

Страница 19: ...TUGUÊS SVENSKA HAAG STREIT AG 3098 Koeniz Switzerland HS Doc no 1500 7006000 04260 26 Edition 2020 03 1500_7006000_04260_Gebrauchsanweisung AT 900_01_eng indd 19 1500_7006000_04260_Gebrauchsanweisung AT 900_01_eng indd 19 19 03 2020 07 02 47 19 03 2020 07 02 47 ...

Страница 20: ...treit com 20 DEUTSCH ENGLISH FRANÇAIS ITALIANO ESPAÑOL NEDERLANDS PORTUGUÊS SVENSKA HAAG STREIT AG 3098 Koeniz Switzerland HS Doc no 1500 7006000 04260 26 Edition 2020 03 Should you have any further questions please contact your Haag Streit representative at 1500_7006000_04260_Gebrauchsanweisung AT 900_01_eng indd 20 1500_7006000_04260_Gebrauchsanweisung AT 900_01_eng indd 20 19 03 2020 07 02 49 1...

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