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US 9,751,649 B2Granted
Method and device for sterile packaging of a ready-to-use flexible hydrophilic intraocular lens
AssigneeAltacor Limited
InventorsChristian Mauran, Mathieu Guillaume
Life of this patent
Estimating the term…
Abstract
The invention relates to a method and a device for packaging a flexible hydrophilic intraocular lens (1) placed flat on an injection support (4) which is adapted to carry out folding of the lens (1) during its implantation. The lens is immersed in a bath of liquid conserving solution contained in a sealed flask (30) which is itself enclosed in a packaging envelope (48), the assembly being steam-sterilized.
Claims16
A device for packaging and conserving in a sterile condition a flexible hydrophilic intraocular lens comprised therein and for intraocular implantation of the lens, comprising:
- an injection support including an implantation end through which the lens can be slid and ejected for intraocular implantation, said injection support adapted to receive and carry the lens and adapted to receive and carry the lens flat and fold the lens prior to ejection of the lens through the implantation end;
- a flexible hydrophilic intraocular lens placed on the injection support;
- and
- an injection device comprising:
- a hollow cylindrical body;
- a thruster piston having a first end configured to engage the lens and a second end having a sealing block having an outer surface contacting the cylindrical body to create a fluid tight seal, the thruster piston slidable in a fluid tight sealed manner within the hollow cylindrical body;
- an operating stem connected to the second end of the thruster piston and extending out of the hollow cylindrical body;
- and
- an end piece at an end of the hollow cylindrical body opposite the injection support, the end piece having an aperture, the operating stem passing through the aperture, and a diameter of the aperture being smaller than the sealing block;
- an axial stop to prevent premature extraction of the thruster piston from the hollow cylindrical body of the injection device during sterilization or at the end of sterilization, under the effect of high pressure prevailing in the hollow cylindrical body and in the injection support as a result of a sterilization process;
- wherein the lens is placed flat on the injection support and is immersed in a liquid conserving solution contained within a liquid-tight rigid flask and the hollow cylindrical body of the injection device, which bathes the lens and keeps it hydrated, the injection support extending in the liquid conserving solution in the rigid flask;
- wherein the rigid flask and the cylindrical body are adapted to be fixed rigidly and sealingly to one another, but in such a way that they can be separated from one another in order to utilize the injection device to implant the lens;
- and
- wherein the device is in a sterilized condition.
11 more elements
A device for packaging and conserving in a sterile condition a flexible hydrophilic intraocular lens comprised therein and for intraocular implantation of the lens, comprising:
- an injection support including an implantation end through which the lens can be slid and ejected for intraocular implantation, said injection support adapted to receive and carry the lens and associated with an injection device including a thruster piston able to push the lens towards the implantation end of the injection support and a sealing block attached to the thruster piston;
- and
- a flexible hydrophilic intraocular lens placed on the injection support;
- wherein,
- the injection support is adapted to receive and carry the lens flat and to carry out folding of the lens prior to ejection of the latter via the implantation end;
- the injection device includes a hollow cylindrical body for receiving the thruster piston adapted to slide in a sealed manner in the cylindrical body, and an internal axial stop which prevents premature extraction of the thruster piston from the cylindrical body of the injection device during sterilization or at the end of sterilization, under the effect of high pressure prevailing in the hollow cylindrical body and in the injection support as a result of a sterilization process;
- the sealing block sealing an axial bore of the hollow cylindrical body to prevent escape of liquid from the hollow cylindrical body;
- the lens is placed flat on the injection support and is immersed in a liquid conserving solution contained within a liquid-tight rigid flask and the hollow cylindrical body of the injection device, which bathes the lens and keeps it hydrated, the injection support extending in the liquid conserving solution in the rigid flask;
- the rigid flask and the cylindrical body are adapted to be fixed rigidly and sealingly to one another, but in such a way that they can be separated from one another in order to utilize the injection device to implant the lens;
- and
- the device is in a sterilized condition.
8 more elements
Dependencies are inferred from the claim text.