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US 11,633,276 B2Granted
IOL folding device
AssigneeAlcon Inc.
InventorsYinghui Wu, Douglas Brent Wensrich, Todd Taber, Len Takudzwa Magara
Life of this patent
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Abstract
An intraocular lens (IOL) folding device is described.
Claims12
An intraocular lens (IOL) folding device comprising:
- a housing;
- a pair of IOL storage shelves disposed within opposite sides of the housing, each IOL storage shelf adapted to support a portion of an unfolded IOL;
- an IOL folding channel formed between the IOL storage shelves, each IOL storage shelf coupled to the IOL folding channel by a lip, the IOL folding channel having a longitudinal axis adapted to be aligned with a bore of an IOL injector, and having a bottom surface forming a floor;
- an IOL folding guide axially aligned and above the IOL folding channel, the IOL folding guide having a first end adapted to contact an upper surface of an IOL and a second end coupled to the housing or a user-actuatable handle, the user-actuatable handle having a first end accessible to a user and a second end coupled to the IOL folding guide or the IOL folding channel, wherein:
- the IOL folding guide comprises a first arm and a second arm, each of the first and second arms having a first end and a second end wherein an inner hook is disposed on the first ends of each of the first and second arms, the inner hooks adapted to contact an inner edge of an IOL base;
- and
- wherein, in response to actuation of a lever or button:
- the floor of the IOL folding channel and the IOL folding guide are adapted to be brought closer together, the IOL folding guide thereby configured to push an unfolded IOL into the IOL folding channel and adopt a folded conformation within the IOL folding channel.
5 more elements
An intraocular lens (IOL) folding device, comprising:
- a housing;
- a pair of IOL storage shelves disposed within opposite sides of the housing, each IOL storage shelf adapted to support a portion of an unfolded IOL;
- an IOL folding channel formed between the IOL storage shelves, each IOL storage shelf coupled to the IOL folding channel by a lip, the IOL folding channel having a longitudinal axis adapted to be aligned with a bore of an IOL injector, and having a bottom surface forming a floor:
- an IOL folding guide axially aligned and above the IOL folding channel, the IOL folding guide having a first end adapted to contact an upper surface of an IOL and a second end coupled to the housing or a user-actuatable handle, the user-actuatable handle having a first end accessible to a user and a second end coupled to the IOL folding guide or the IOL folding channel, wherein:
- the IOL folding guide comprises a first and a second flexible arm, each flexible arm having a first end and a second end, wherein an inner hook is formed on the first ends of each of the first and second flexible arms, the inner hooks adapted to contact an inner edge of an IOL base;
- and
- the IOL folding device further comprising:
- a user-actuatable handle comprising a button slidably disposed within a first side of the housing, the button having a first end depressible by a user, and a second end coupled to the second end of the flexible arms;
- and
- a spring having a first end coupled to the button and a second end coupled to the housing;
- wherein in response to depression of the button:
- the flexible arms are adapted to move from a resting position toward the floor of the IOL folding channel;
- the flexible arms are adapted to flex axially in response to resistance of an unfolded IOL base adopting a folded configuration as the IOL base enters the IOL folding channel, such that the first ends of the flexible arms move away from each other;
- the inner hooks are adapted to contact the IOL base and axially elongate the IOL base;
- and
- the spring is adapted to return the button to the resting position.
13 more elements
An intraocular lens (IOL) folding device comprising:
- a housing;
- a pair of IOL storage shelves disposed within opposite sides of the housing, each, IOL storage shelf adapted to support a portion of an unfolded IOL;
- an IOL folding channel formed between the IOL storage shelves, each IOL storage shelf coupled to the IOL folding channel by a lip, the IOL folding channel having a longitudinal axis adapted to be aligned with a bore of an IOL injector, and having a bottom surface forming a floor;
- an IOL folding guide axially aligned and above the IOL folding channel, the IOL folding guide having a first end adapted to contact an upper surface of an IOL and a second end coupled to the housing or a user-actuatable handle, the user-actuatable handle having a first end accessible to a user and a second end coupled to the IOL folding guide or the IOL folding channel, wherein:
- the IOL folding guide comprises a first arm and a second arm, each of the first and second arms having a first end and a second end, wherein an outer hook is disposed on the first ends of each of the first and second arms, the outer hooks adapted to contact an outer edge of haptic;
- and
- wherein, in response to actuation of a lever or button:
- the floor of the IOL folding channel and the IOL folding guide are adapted to be brought closer together, the IOL folding guide thereby configured to push an unfolded IOL into the folding channel and adopt a folded conformation within the IOL folding channel.
5 more elements
Dependencies are inferred from the claim text.