Intraocular lens inserter

Patent metadata

Field	Value
Publication number	US-10905547-B2
Application number	US-201815916005-A
Country	US
Kind code	B2
Filing date	Mar 8, 2018
Priority date	Apr 4, 2014
Publication date	Feb 2, 2021
Grant date	Feb 2, 2021

Abstract

An intraocular lens inserter can include a drive device with controllable advance motion. The drive device may include an actuator device and an energy device. The actuator device may include a piston rod that uses the advance motion to push an intraocular lens from a cartridge for insertion into an eye of an animal. The energy device may act upon the actuator device to generate the advance motion. The actuator device may include a dampening medium to control the advance motion, such as by controllably dampening the advance motion.

First claim

What is claimed is:

1. A method for discharging an intraocular lens from an intraocular lens insertion device, the method comprising:
applying pressurized gas pressure to a piston rod;
sliding a slider configured to change the cross sectional area of a channel in a compression chamber containing a dampening medium that applies a dampening pressure to the piston rod that counteracts the pressurized gas pressure, thereby moving the piston rod by reducing the dampening pressure;
inserting an intraocular lens into an eye of an animal by using the piston rod to push the intraocular lens from an intraocular lens retaining portion.

2. The method of claim 1 , wherein the applying the pressurized gas pressure comprises releasing pressurized gas from a pressurized gas canister.

3. The method of claim 1 , wherein the applying the dampening pressure comprises using a dampening medium to contact the piston rod in a compression chamber, and wherein the reducing the dampening pressure comprises draining the dampening medium from the compression chamber.

Assignees

• Alcon Pharmaceuticals Ltd
• Alcon Inc

Inventors

• Auld Jack
• Huculak John Christopher
• Mccawley Matthew Douglas
• Flowers Matthew Braden

Classifications

• A61F2/167 Primary

  with pushable plungers · CPC title

• A61F2/1678

  with a separate cartridge or other lens setting part for storage of a lens, e.g. preloadable for shipping · CPC title

• A61F2/1691

  Packages or dispensers for intraocular lenses (for contact lenses A45C11/005) · CPC title

• A61F9/007

  Methods or devices for eye surgery · CPC title