Injector device
AssigneeCrea IP B.V.
InventorsGiov Battista Angelini, Joep Hiemstra, Mervin Gerard Cleij, Mikhail Boukhny, Giovanni Pernice
Life of this patent
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Abstract
Injector for use in ophthalmic applications, having a gas supply tube and a liquid supply tube, both supply tubes being interconnected at a junction member that is in fluid communication with an outflow cannula, characterised in that a selective flow member is placed in the gas supply tube, near the junction member, allowing gases to pass through and blocking the passage of liquid.
Claims15
Injector for use in ophthalmic applications, having a gas supply tube and a liquid supply tube, both supply tubes being interconnected at a junction member that is in fluid communication with an outflow cannula,
- characterised in that a selective flow member is placed in the gas supply tube, near the junction member, allowing gases to pass through and blocking the passage of liquid.
System comprising a control unit, a gas supply, and a liquid supply, each of the gas supply and the liquid supply connected to a gas supply tube and a liquid supply tube, respectively, of an injector according to any of the preceding claims, the control unit being adapted to:
- activate the gas supply to push up gas into the gas supply tube, past the selective flow member at a gas pressure X and supply gas to the outflow cannula, and
- switch to a supply of liquid through the outflow cannula by flowing liquid up to the selective flow member at a liquid pressure higher than the gas pressure X, and supplying liquid to the outflow cannula.
Dependencies are inferred from the claim text.