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US 8,998,810 B2Granted
Arrangement in a tonometer
AssigneeTiolat Oy
InventorAntti Kontiola
Life of this patent
Estimating the term…
Abstract
The arrangement in a tonometer has a probe that is brought into contact with the surface of the eye and the intraocular pressure in the eye is derived from the variations in the velocity of the probe. The probe is formed of a piece of a non-magnetic substance. The arrangement includes a holder located in the tubular component and attached to a shaft providing the force for the measurement, in which holder there is a guiding means for guiding a movement of the probe along an internal surface of the tubular component.
Claims13
An arrangement in a tonometer, comprising:
- a probe contactable with a surface of an eye to derive an intraocular pressure in the eye from variations in a velocity of the probe, the probe having an end,
- the probe being at least partially disposed inside a tubular component having a channel defined therein,
- a holder located inside the channel of the tubular component and attached to a shaft inserted into the holder, the holder having holding means being in operative engagement with an end of the probe for holding the end and being adapted to provide a force to the probe for a measurement of the intraocular pressure in the eye, the end of the probe being compressed by an inside of the holder,
- the holder having guiding means for guiding a movement of the probe along an internal surface of the channel disposed inside the tubular component, and
- the probe, the holder and the shaft being movable between a retracted position and an extended position, the guiding means extending to the internal surface of the channel when the probe, the holder and the shaft being in the retracted position.
2 more elements
Dependencies are inferred from the claim text.