79 results about "Intraocular lens injector" patented technology

An intraocular lens injector plunger having a blunt, rounded tip offset from the centerline of the plunger rod. The offset tip assures that the tip is biased downward against the bottom of the cartridge bore. Such a downward bias helps prevent the tip from riding up over the IOL and being folded within the IOL. The offset also helps prevent the haptics of the IOL from becoming trapped between the plunger rod and the cartridge bore, thereby damaging the haptics and / or preventing the IOL from being advanced down the bore.

An intraocular lens (IOL) injector for delivering an IOL into an eye of a patient. The injector includes an IOL load chamber and connected delivery tube, and a push rod for urging the IOL through the delivery tube and out of a distal tip thereof. The push rod is guided and biased against one side of the injector load chamber. The injector may include an inflatable pusher for urging the IOL through the delivery tube and out of a distal tip thereof. The inflatable pusher has a proximal end that may be open to an internal cavity of the injector, wherein a plunger movable in the injector cavity forces fluid such as air or saline into the pusher. A distal end of the pusher may be forked to capture a trailing end of the IOL, or may have a bulbous configuration to ensure the pusher does not pass the IOL.

A plunger (30) for an IOL injector device includes a shaft (37) with a distal tip (32) and a compressible sleeve (40) positioned about the shaft with the tip extending forwardly of the sleeve. In a first stage of IOL (12) advancement through the injector device, the plunger tip engages and pushes the IOL through a first section (14a) of the injector body (14). In a second stage of IOL advancement, the sleeve enters the narrowing section (14b) of the injector body toward the open tip (18) thereof with the IOL and sleeve both undergoing compression. The sleeve compresses and lengthens in a forward direction ultimately enveloping the plunger distal tip. Viscoelastic applied inside the injector accumulates between the leading edge of the compressed sleeve and the compressed IOL thereby creating hydraulic pressure which pushes the compressed IOL through the remainder of the injector body and out the open distal tip thereof.

An IOL injector device allows for both powered and manual delivery of an IOL. The injector has a tubular housing. A plunger is longitudinally disposed within the housing and has first and second ends. The first end is disposed towards the front end of the housing. A drive system is coupled to the housing. The drive system causes longitudinal translation of the plunger along the primary axis of the housing. A normally engaged clutch system is coupled to the drive system. The normally engaged clutch system allows manual disengagement of the drive system. A knob coupled to the plunger allows for manual operation of the injector.

A plunger needle (3) for an intraocular lens injector has a plunger tip (4) with a contact area for making contact with a lens (L), the contact area being arranged in a front face (40) of the plunger tip (4), which is curved cylindrically. The plunger needle (3) according to the invention, with its specially configured plunger tip (3), permits reliable guiding of the lens (L) upon injection into an eye and prevents the lens (L) becoming stuck in the injector. It is also easy to produce.

IOL injector system and method for injecting an IOL into an eye which incorporates the benefits of both a rigid and soft plunger tip lens engagement surface while at the same time reduces or eliminates the disadvantages associated therewith.

An IOL injector that includes one or more polymeric portions that include a hydrophilic coating component that is effective to facilitate the passage of the IOL through the injector, particularly an injector tip. The IOL injector is prepared by a process that includes irradiating at least a portion of a polymeric, IOL injector with UV light in an environment comprising oxygen to provide a positive percent change in the atomic oxygen content of the polymer material at the surface as determined by X-ray Photoelectron Spectroscopy (XPS). A portion or the entire irradiated portion is then contacted with a solution comprising a hydrophilic coating component. The hydrophilic coating component is selected from a hydrophilic polymer, a hydrophilic copolymer or any one mixture thereof to provide a solution coated portion. The solution coated portion is then heated at a temperature to provide portions of the IOL injector with a shelf-stable, lubricious hydrophilic coating to facilitate delivery of an IOL from the injector.

An intraocular lens (IOL) assembly packaged for shipping, comprising an IOL injector component having a lumen wall, and an intraocular lens, at least one of the lumen wall and the optic comprising a first lens retention feature for impeding progress of the lens through said lumen toward the distal end. An IOL injector for injecting an IOL, comprising at least two projections extending from said lumen wall, the projections being configured and arranged to interfere with said soft tip prior to and during engagement of said soft tip with the IOL. An intraocular lens storage system, comprising a receptacle within the container, and a tapered portion, the tapered portion and the receptacle permitting a user's fingers to extend into the container to grasp a portion of a shuttle in the receptacle and remove the shuttle form the container, the receptacle defining a volume in which liquid is confined, the volume of the receptacle being less than the volume of the container.

An IOL injector kit comprising a first body portion having a first lumen disposed therethrough, a proximal end, a distal end configured to deposit an IOL into an eye, a second body portion having a second lumen disposed therethrough, a proximal end and distal end, a container comprising a wall defining a container lumen, a first open end configured to receive the proximal end of the first body portion into the container lumen, and a second open end configured to receive the distal end of the second body portion into the container lumen, and an IOL disposed inside said container.

IOL (intraocular lens) injector (1) for introducing an IOL (100) into the eye, comprising: an injector body (2); a cavity (4) for holding the IOL (100) comprising a leading haptic (100b) and a trailing haptic (100c); a cartridge (5) ending at a distal end (5c) in an injection nozzle (5a); the injector body (2), the cavity (4) and the cartridge (5) having a channel (6) extending in axial direction (P); and an axially movable pushing plunger (7) being placed in the channel (6) of the injector body (2) for pushing the IOL (100) in axial direction (P) out of the cavity (4) and into the cartridge (5) and the injection nozzle (5a), wherein a folding plunger (8) is arranged in the channel (6) and is extending in axial direction (P), parallel to the pushing plunger (7); and wherein the cavity (4) comprises a trailing haptic rest (4c) for defining the direction of the trailing haptic (100c) of an IOL (100) arrange in the cavity (4), such that the folding plunger (8) when moved in axial direction (P) hits the trailing haptic (100c) of the IOL (100).

An intraocular lens injector for injecting a foldable intraocular lens in an aye, comprises: a substantially cylindrical main unit including a substantially cylindrical insertion part which is insertable through an incision made in the eye, the main unit being adapted to internally hold the intraocular lens and release the intraocular lens to the outside of the injector through the insertion part; a push unit inserted in the main unit to push the intraocular lens to the outside through the insertion part, the push unit being disposed to be unrotatable relative to the main unit but movable in an axial direction of the main unit; and a rotatable member disposed to be rotatable relative to the main unit.

An IOL injector subassembly, comprising a lens cartridge, an IOL, and a fastener connected to the lens cartridge arranged to hold the IOL in a position disposed over at least a portion of the first lumen segment and over at least the second lumen segment. A method for facilitating loading of an IOL injector, comprising removing the fastener, and rotating the first portion relative to the second portion to fold the IOL.

An IOL injector cartridge, comprising an upper wall, a lower wall, the upper wall and the lower wall combining to define a lumen that extends from a proximal end to a distal end, a slot extending through the entire thickness of the upper wall and extending from the proximal end and having a slot distal end formed by the upper wall, an edge of the upper wall that, at least partially defines the slot, having a convex curvature, the curvature occurring along the thickness of the edge.

Disclosed herein is an intraocular lens injector for inserting an intraocular lens into an eye, the intraocular lens injector including: a cylindrical cylinder, into which a plunger for passing the intraocular lens to be guided into the eye is inserted; a connection block having a C-shaped longitudinal cross-section and integrally formed at the front end of the cylinder; a cartridge, which is connected to the connection block and includes first and second wing portions, which are folded with respect to each other, first and second receiving grooves formed at the connection portion of the first and second wing portions and having a semicircular longitudinal cross-section, and a truncated conical guide portion, which extends from the second receiving groove in the lateral direction and includes a guide passage having a circular cross-section corresponding to the shape of the assembled first and second receiving grooves; and an engagement member having a circular cross-section corresponding to the shape of the assembled first and second receiving grooves and maintaining the intraocular lens in a folded state.

A device having a pair of stretcher bars. The first bar remains fixed while the second bar can be reciprocated relative to the first bar by actuation of a movable slide. The device of the present invention is useful for stretching and implanting the ring portion of a two component intraocular lens.

An intraocular lens (IOL) injection device is modularized to enable cleaning of internal components after surgery. The device includes first and second housing modules. These modules collectively define a passageway along which an injector rod moves between a retracted position and an extended position. The first module is further configured to accommodate a lens cartridge module. The cartridge module has disposed therein an IOL, in alignment with the passageway. Thus as the rod moves from the retracted position to the extended position, a front portion of the rod that is substantially surrounded by the first module in the retracted position moves into the cartridge module and displaces the IOL. This causes the front portion of the rod to accumulate on it viscoelastic substances. The first module, though, is configured to detach from the second module, to thereby expose the front portion of the rod in the retracted position for cleaning.

Disclosed herein is an intraocular lens injector for inserting an intraocular lens into an eye, the intraocular lens injector including: a cylindrical cylinder, into which a plunger for passing the intraocular lens to be guided into the eye is inserted; a connection block having a C-shaped longitudinal cross-section and integrally formed at the front end of the cylinder; a cartridge, which is connected to the connection block and includes first and second wing portions, which are folded with respect to each other, first and second receiving grooves formed at the connection portion of the first and second wing portions and having a semicircular longitudinal cross-section, and a truncated conical guide portion, which extends from the second receiving groove in the lateral direction and includes a guide passage having a circular cross-section corresponding to the shape of the assembled first and second receiving grooves; and a cover member inserted into the connection block together with the second wing portion 43 of the cartridge 40 and detachably connected to the connection block.

An injector for inserting an intraocular lens into an eye, comprising a main body (10) and a plunger (50). A guide element (30) is connected to the distal end of the plunger to laterally guide the plunger during movement along a longitudinal axis (L). The distal end of the guide element has a structure for fastening a plunger needle to the guide element. A radial guide pin (40) is in aligned radial bores of the guide element and plunger and extends into a longitudinal slot (17) of the main body to prevent twisting and to secure the guide element to the plunger. A retaining element (24) interacts with a running surface on the perimeter of the plunger, the running surface having a variable radial distance from the longitudinal axis so as to cause an axial resistance force which depends on the axial position of the plunger.

An IOL injector, comprising an injector body, a plunger and a plunger collar. The injector body has a lumen wall defining a lumen, a port through which a lens is inserted into a loading bay of the lumen, a stop, and an opening adapted for delivery of an IOL into an eye. The plunger comprising a plunger body, a plunger shaft and a plunger tip. The collar comprises a hole or a channel, the plunger shaft extending therethrough. The plunger shaft is slidably, frictionally engaged with the collar. The plunger and the collar are arranged within the lumen such that an outer surface of the collar can smoothly slide within the lumen wall from a first location where the tip is proximal of an IOL disposed at the loading bay to a second location where the stop interferes with the collar. The collar having an outer dimension that is substantially equal to a dimension of the lumen.

An intraocular lens (IOL) injector comprising an injector body having a lumen defined by a lumen wall, and a plunger adapted to slide within the lumen. The plunger is coupled to a spring having a plurality of coils, the plurality comprising at least one coil of a first outer diameter and at least one coil of second outer diameter that is different than the first outer diameter.

An IOL injector device allows for both powered and manual delivery of an IOL. The injector has a tubular housing. A plunger is longitudinally disposed within the housing and has first and second ends. The first end is disposed towards the front end of the housing. A drive system is coupled to the housing. The drive system causes longitudinal translation of the plunger along the primary axis of the housing. A normally engaged clutch system is coupled to the drive system. The normally engaged clutch system allows manual disengagement of the drive system. A knob coupled to the plunger allows for manual operation of the injector.

An intraocular lens (IOL) injector assembly comprising an injector body having a shuttle reception opening defined at least in part by a first sidewall and a second sidewall, and a shuttle comprising a first wing including a first portion of a shuttle lumen wall and a second wing including a second portion of a shuttle lumen wall. The first wing and the second wing are coupled together by a hinge. When in a closed state, the first portion of the shuttle lumen wall and the second portion of the shuttle lumen wall define at least a portion of an operative shuttle lumen. The shuttle and sidewalls are configured such that the first wing and the second wing interfere with the first sidewall and the second sidewall, respectively, as the shuttle passes through the shuttle reception opening, such that the closed state of the shuttle is attained.