Huvitz HT-5000 User Manual
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Huvitz HT-5000 User Manual

Applanation tonometer
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---------------------------------------------------------------- Applanation Tonometer HT-5000 1
User's Manual
Applanation Tonometer HT-5000

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Summary of Contents for Huvitz HT-5000

  • Page 1 ---------------------------------------------------------------- Applanation Tonometer HT-5000 1 User’s Manual Applanation Tonometer HT-5000...
  • Page 2 HUVITZ reserves the right to make changes in its products or product specifications at any time and without prior notice, and is not required to update this documentation to reflect such changes..

  • Page 3: Table Of Contents

    ---------------------------------------------------------------- Applanation Tonometer HT-5000 3 Contents Safety Infomation ....................5 1.1. Introduction…………………………………………………………………………5 ………………………………………………………………6 1.2. Safety symbols 1.3. Environmental Considerations ............... 8 1.4. Safety (Note for Use) ................... 10 Product Description ....................14 2.1. Introduction.………………………………………………………………………14 2.2. Pressure Measurement Method………………………………………………..14 2.3. Operation and Storage Condition………………………………………………16 2.4.
  • Page 4 Applanation Tonometer HT-5000 -------------------------------------------------------------- Maintenance ......................41 5.1. Applanation Tonometer HT-5000 Check……………………………………….42 Cleaning / Disinfection of Prism ................44 6.1. Disinfection of Prism……………………………………………………………..44 6.2. Accessories Disinfection……………………………………………………..45 Technical Standard ....................46 EMC information ....................48 Service Information ....................52...

  • Page 5: Safety Infomation

    ---------------------------------------------------------------- Applanation Tonometer HT-5000 5 1. Safety Information 1.1 Introduction Safety is everyone’s responsibility. The safe use of this equipment is largely dependent upon the installer, user, operator, and maintainer. It is imperative that personnel study and become familiar with this entire manual before attempting to install use, clean, service or adjust this equipment and any associated accessories.

  • Page 6: Safety Symbols

    Applanation Tonometer HT-5000 -------------------------------------------------------------- Product Classification ※ This product is medical device Regulatin MDD 93/42/EEC 1) CE- ; Class Im (measuring functions) 2) FDA – Class ll 3) KFDA – Class ll Intended Use: Use for glaucoma diagnosis. 1.2 Safety Symbols...
  • Page 7 ---------------------------------------------------------------- Applanation Tonometer HT-5000 7 Temperature Limitation Keep DRY MEDICAL EUIPMENT WITH RESPECT TO ELECTRIC SHOCK FIRE AND MECHANICAL HAZARDS UL60601-1 ONLY IN ACCORDANCE WITH CAN/CSA UL 60601-1, AND C22.2 CAN/CSA C22.2 NO.601.1 NO.601.1 Disposal of your old appliance When this crossed-out wheeled bin symbol is attached to a product it means the product is covered by the European Directive 2002/96/EC.

  • Page 8: Environmental Considerations

    Applanation Tonometer HT-5000 -------------------------------------------------------------- 1.3 Environmental Considerations Please avoid the environment below for the operation and storage of the equipment. Where the equipment is exposed to water vapor. Don’t operate the equipment with wet hands. Where the machine is exposed directly to the sunlight.
  • Page 9 ---------------------------------------------------------------- Applanation Tonometer HT-5000 9 Where the machine can be exposed to the chemical or flammable substances. Please keep the equipment out of dust and do not let inserted any metal parts such as coins, clips, etc. Do not disassemble or open the machine. The manufacture shall have no responsibility for any problems caused by these.

  • Page 10: Safety (Note For Use)

    Applanation Tonometer HT-5000 -------------------------------------------------------------- 1.4 Safety (Note for Use) This product can use only glaucoma diagnosis. Applanation Tonometer must be used only through people to a medical treatment relation occupation. Applanation Tonometer could be Transfortation / Storage / Operation from this environment.
  • Page 11 The manufacturer grants a guarantee on the instrument. For information regarding guarantee conditions, please refer to your local huvitz representative. The manufacturer guarantee covers breakdowns and defects that are caused by materials and design. Breakdowns and defects that are caused by improper use or outside influences are excluded from the guarantee.
  • Page 12 HUVITZ measuring prism recommends a maximum service life of two years before the expiry date. This service life applies subject to normal conditions of use, i.e., in...
  • Page 13 ---------------------------------------------------------------- Applanation Tonometer HT-5000 13...

  • Page 14: Product Description

    2.1 Introduction Applanation Tonometer HT-5000 is made for measuring intraocular pressure and It can assemble to HUVITZ Slit lamp(HS-5000). Applanation Tonometer HT- 5000 can assemble another slit lamp. Must be used only through people to a medical treatment relation occupation.
  • Page 15 ---------------------------------------------------------------- Applanation Tonometer HT-5000 15 built-in duplication system in the measuring prism divides the image and displaces the two semi circular halves from each other by 3.06 mm. Before measuring, it will be necessary to anesthetise the cornea locally, to place a strip of fluorescein paper in the conjunctival sac and switch on the blue filter of the slit lamp.

  • Page 16: Operation And Storage Condition

    Applanation Tonometer HT-5000 -------------------------------------------------------------- 2.3 Operation and Storage Condition Storage Temperature : –10˚C ~ +55˚C Air Pressure : 700 hPa ~ 1060 hPa Humidity : 10% ~ 95% Operation Condition Temperature : +10˚C ~ +40˚C Air Pressure : 800 hPa ~ 1060 hPa...

  • Page 17: Configuration

    ---------------------------------------------------------------- Applanation Tonometer HT-5000 17 2.4 Configuration Measuring prism : Part for contacting to patient’s cornea Feeler arm : Part for locking up the measuring prism Control weight insertion : Part for connecting the weight bar Control drum : The IOP is measured by rotating control drum...

  • Page 18: Basic Unit

    Applanation Tonometer HT-5000 -------------------------------------------------------------- 2.5 Basic Unit This product supplied in the condition which is packed packing. Take out a product from packing and must check the next parts. Applanation Tonometer HT-5000 body Connection arm Weight bar Measuring prism (2EA)

  • Page 19: Installation

    ---------------------------------------------------------------- Applanation Tonometer HT-5000 19 3 Installation CAUTION This product be supplied packing condition which be stand various transportation and standard storage condition. If product be defected, must be called immediately to the HUVITZ. 3.1 Product Installation When install on the slit lamp of another company product, must confirm the part which is assembled of equipment.
  • Page 20 Applanation Tonometer HT-5000 --------------------------------------------------------------...

  • Page 21: Operation The Equipment

    4 Operating the Equipment 4.1 Preparation before Using CAUTION Only to use ‘HUVITZ’ measuring prisms can guarantee trouble-free function. Stenilised Fluorescein paper should always be used because pathogenic excciters thrive well in Flrourescein solutions. Should the measuring prism come into contact with the cornea without the pressure having previously been correctly set, sone vibrations can occur in the feeler arm that will produce unpleasant fellings for the patient.
  • Page 22 Applanation Tonometer HT-5000 -------------------------------------------------------------- ② Set the magnification to 10x. ③ Set the equipment power supply / the control drum to the lowest setting. ④ The illumination device of the slit lamp set position of the blue filter and open the slit diaphragm fully.

  • Page 23: Equipment Control And Battery Replacement

    ---------------------------------------------------------------- Applanation Tonometer HT-5000 23 4.2 Equipment Control and Battery Replacement Turn On / Off Turn the tonometer on, by briefly pressing the function button. The tonometer is ready for use when the digital display lights up and displays the last set tonometer value. The tonometer turns off automatically after 90 seconds, if no other adjustment has been made.
  • Page 24 Applanation Tonometer HT-5000 -------------------------------------------------------------- show. [LoP] / [HiP] Adjust display brightness The brightness of the display can be changed with the function button. Hold down the function button about 1 second. The display shows [---](three dashes) and an audible signal sounds. Release the button again.
  • Page 25 ---------------------------------------------------------------- Applanation Tonometer HT-5000 25 Adjust volume The volume can be changed with the function button. Hold down the function button 1 second. The display shows [---](three dashes) and an audible signal sounds. Release the button again. The display shows [Vo] and a level from 1 to 3. By briefly pressing the button you can adjust the volume.
  • Page 26 Applanation Tonometer HT-5000 -------------------------------------------------------------- Set rounded off function The rounded off function can be set with the function button. Hold down the function button about 1 second. The display shows [--- ](three dashes) and an audible signal sounds. Release the button again.
  • Page 27 ---------------------------------------------------------------- Applanation Tonometer HT-5000 27 Replacement of batteries Drag carefully “Battery SW" to the bottom and remove the battery compartment cover while tilting it back. Remove the cells. Always replace all batteries with new ones, do not combine old batteries with new batteries. Always use sealed 1.5V, AAA batteries.

  • Page 28: Correct Measurement

    Applanation Tonometer HT-5000 -------------------------------------------------------------- correct order according the inscription in the battery compartment. Once the batteries are exchanged, put the tabs on the underside of the lid into the grooves of the housing and close it by tilting upwards. Press gently on the cover and lock the battery compartment by pushing “Battery SW”...
  • Page 29 ---------------------------------------------------------------- Applanation Tonometer HT-5000 29 moistened with the lacrimal fluid and fluorescein. By moving the slit lamp forward, the measuring prism is brought into contact with the center of the cornea over the pupils. The limbus of the cornea will be illuminated with a bluish hue. This illumination is best observed by direct sight from the opppsite side of the illumination unit by the examiner.As soon as the limbus of the cornea illuminates, cease any...
  • Page 30 Applanation Tonometer HT-5000 --------------------------------------------------------------...
  • Page 31 ---------------------------------------------------------------- Applanation Tonometer HT-5000 31 Sources of error Fluorescein band incorrect : 3 ~ 4  Fluorescein band too wide. (3)  The measuring prism was not dried after cleaning or the eyelids came into contact with the measuring prism.
  • Page 32 Applanation Tonometer HT-5000 -------------------------------------------------------------- Pressure changes lead immediately to changes in area.
  • Page 33 ---------------------------------------------------------------- Applanation Tonometer HT-5000 33 Position too far to the right / left : 7 ~ 10  Only part of the upper semicircle. (7)  Measuring prism not centered on the eye, eye much too far to the right.
  • Page 34 Applanation Tonometer HT-5000 -------------------------------------------------------------- (10) (11)
  • Page 35 ---------------------------------------------------------------- Applanation Tonometer HT-5000 35 Position too high / low : 12 ~ 15  Only part of a semicircle in the upper half. (12)  Measuring prism not centered on the eye, eye too high.  Using the control lever move the slit lamp upwards ...
  • Page 36 Applanation Tonometer HT-5000 -------------------------------------------------------------- (12) (13) (14) (15) (16)
  • Page 37 ---------------------------------------------------------------- Applanation Tonometer HT-5000 37 Incorrect pressure : 17 ~ 19  Contact with the outside borders of the fluorescein bands. (17)  Not enough pressure.  Increase the pressure slightly by turning the knob on the tonometer.  Fluorescein bands are superimposed to form a band. (18) ...
  • Page 38 Applanation Tonometer HT-5000 -------------------------------------------------------------- (17) (18) (19) (20)

  • Page 39: Tips For Measurement

    ---------------------------------------------------------------- Applanation Tonometer HT-5000 39 4.4 Tips for the Measurement CAUTION The measurements should be carried out as quickly as possible. Should the cornea epithelium show signs of dryness then check visual acuity and visual field. The measurement can be repeated. Excited and anxious patients frequently have a higher intraocular pressure on the first measurement.

  • Page 40: Astigmatism

    Applanation Tonometer HT-5000 -------------------------------------------------------------- 4.5 Astigmatism If the cornea is spherical, measurements can be made on any meridian, but it is most convenient to do it on the 0° meridian. This is not so when eyes with higher corneal astigmatism than 3 dioptres are examined, as the flattened areas are not circular but elliptic.

  • Page 41: Maintenance

    Is the measuring prism set correctly? ② Is the control weight correctly set? ③ Repeat the check. Defective equipment must be sent immediately to the HUVITZ CAUTION HUVITZ offers a repair and service packet. For further information give direct liaison to HUVITZ.

  • Page 42: Applanation Tonometer Ht-5000 Check

    Applanation Tonometer HT-5000 -------------------------------------------------------------- 5.1 Applanation Tonometer HT-5000 Check Starting position 20 mm Hg The control weight is intended to do this. On the control weight there are 5 rings. The middle position is 0 mm Hg, both directly to the left and right correspond to 20 mm Hg, and the two extremes to 60 mm Hg.
  • Page 43 ---------------------------------------------------------------- Applanation Tonometer HT-5000 43 ② In the position more than 20.5, the color of LED must be red. If you turn Control drum, LED’s color will change to green. And If you turn more, the color will change to red (RED -> GREEN ->...

  • Page 44: Cleaning / Disinfection Of Prism

    Applanation Tonometer HT-5000 -------------------------------------------------------------- between 59 and 61. 6 Cleaning / Disinfection of Prism 6.1 Disinfection of Prism Must use after clean because measuring prisms are dispatched in a non- disinfected condition. Measuring prisms are cleaned and disinfected correctly. For an optimal cleaning and disinfection the measuring prisms must be submerged and must move freely in the fluid.

  • Page 45: Accessories Disinfection

    ---------------------------------------------------------------- Applanation Tonometer HT-5000 45 #To the measurement prism there not must be a residue. Forbidden! • Disinfection with alcohol • Cleaning with acetine • Disinfection with UV irradiation • Sterilisation with steam or ethylene oxide • Immersion in fluid longer than one hour •...

  • Page 46: Technical Standard

    Applanation Tonometer HT-5000 -------------------------------------------------------------- 7 Technical Standard Measuring force : by leverage weight Assembly : Fits on a pin on the microscope Measurement range : 3 - 75 mmHg Measurement deviation : The measurement deviation is the measuring prism is in the measurement range from 0 - 58.84mN and amounts to a maximum of ±1.5%.
  • Page 47 ---------------------------------------------------------------- Applanation Tonometer HT-5000 47 Only in the USA 1. Remove measuring prism carefully from holder. 2. Clean : Wipe prisms clean before finsing for 30- 60 seconds in running cold water. 3. Disinfect : Hydrogen Peroxide(10 minutes) or Sodium Hypochlorite(10 minutes) 4.

  • Page 48: Emc Information

    Applanation Tonometer HT-5000 -------------------------------------------------------------- 8 EMC Information...
  • Page 49 ---------------------------------------------------------------- Applanation Tonometer HT-5000 49...
  • Page 50 Applanation Tonometer HT-5000 --------------------------------------------------------------...
  • Page 51 ---------------------------------------------------------------- Applanation Tonometer HT-5000 51...

  • Page 52: Service Information

    Dealer’s Name: Dealer Address: Dealer Phone No.: Model No.: Serial No.: ( Huvitz recommends customers to fill up the following form after purchase and retain this manual as a permanent record of purchase.) HUVITZ Co., Ltd. Tel: +82-31-442-8868 689-3 Geumjeong-dong...

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