A61F2/1672

Injector assembly employing compressed gas and a mechanical brake for presenting an intraocular lens to a patient

An intraocular lens (IOL) injector is configured for single hand operation and employs a compressed gas to provide a motive force to present an IOL to a surgical site. The IOL injector includes a mechanical brake coupled to a plunger to preclude translation of an IOL absent operator input. The mechanical brake provides for selectively varying the speed and translation of the plunger, and hence IOL during presentation of the IOL to a patient. The IOL injector can also include at least a first stop, which halts movement of the plunger at a predetermined position. The at least first stop is then moved to a passing position, thereby allowing further operator controlled translation of the plunger to present the IOL to the surgical site.

Intraocular lens delivery device and method of use

An IOL delivery device which has a macro movement actuator which is actuateable to move an IOL into position in the device for the IOL to be delivered, and a micro movement actuator comprising at least one pivotable member which is pivotable to deliver the IOL to the eye. The pivotable member may comprise one or more wheels that are rotatable using one's finger.

IOL injector plunger having IOL compression arms
11633275 · 2023-04-25 · ·

An IOL injector plunger having IOL compression arms is described.

Removable cap actuation for an intraocular lens cartridge

Systems, methods, and apparatuses for removably attaching a drive mechanism handpiece to an intraocular lens (IOL) cartridge that folds the IOL upon removal of a cap, are provided. The IOL cartridge comprises a nozzle and a housing comprising a slide. A compartment configured to receive an IOL is disposed within the housing. An interior portion of the slide is exposed to the compartment. The nozzle is in fluid communication with the compartment. The cap covers the nozzle and the slide. The cap is configured to expose the nozzle and advance the slide to fold the IOL upon removal of the cap.

OPHTHALMO-SURGICAL INJECTOR
20230200978 · 2023-06-29 ·

An ophthalmo-surgical injector includes an injector body, a tip with which an intraocular lens can be pressed out of the injector, a first plunger mounted longitudinally displaceably on the injector body and having a first projection, a shaft rotatably mounted in the injector body and having a first guide and a second guide which are each wound about the shaft, and a second plunger mounted longitudinally displaceably on the injector body and having a second projection. The first projection engages in the first guide, such that the first plunger is configured to effect, with a longitudinal displacement of the first plunger, a rotation of the shaft about a longitudinal axis of the injector body, and the second projection engages in the second guide, as a result of which the shaft is configured to effect, with the rotation effected by the first plunger, a longitudinal displacement of the second plunger.

IOL DELIVERY SYSTEMS

An intraocular lens (IOL) insertion apparatus includes a handpiece body having a distal tip and a proximal section. The IOL insertion apparatus also includes a folding chamber located within the handpiece body, the folding chamber shaped to fold an IOL advancing through the folding chamber. The IOL insertion apparatus also includes an advancement system. The advancement system includes an advancement carriage movable between a first position and a second position within the handpiece body. The advancement carriage includes a spring system biasing the advancement carriage in a distal direction toward the second position and a dampening system to dampen motion of the advancement carriage. The advancement system further includes an elongated advancement plunger that includes a distal end to advance the IOL through the folding chamber and a proximal end connected to the advancement carriage.

SYSTEMS AND METHODS FOR INTRAOCULAR LENS DEPLOYMENT

An intraocular lens (IOL) insertion apparatus may include a handpiece body having a distal tip and a deployment chamber located at a distal end of the handpiece body. The deployment chamber is sized and shaped to hold a folded IOL. The IOL insertion apparatus further includes a deployment system disposed within the handpiece body. The deployment system may include a deployment carriage movable between a first position and a second position within the handpiece body. The deployment carriage may include a biasing element that biases the deployment carriage in a distal direction toward the distal tip. The deployment system may further include a deployment trigger that prevents distal movement of the deployment carriage unless pressed and a deployment plunger having a proximal end secured to the deployment carriage and a distal end to engage the folded IOL.

INTRAOCULAR LENS DELIVERY DEVICE WITH TELESCOPING PLUNGER
20170367817 · 2017-12-28 ·

An intraocular lens (IOL) insertion apparatus may include a hand piece body having a distal tip, an IOL folding chamber, and IOL a dwell position, and a telescoping plunger having a first plunger portion and a second plunger portion. The first plunger portion and second plunger portion may be arranged to simultaneously advance through a first portion of a displacement of the telescoping plunger, and one of the first and second plunger portions may be arranged to advance through a second portion of the displacement of the telescoping plunger.

Injector, in particular dual function injector and/or injector with stop element
11684470 · 2023-06-27 · ·

An injector for ejecting an intraocular lens for injecting the latter into an eye or for implanting a corneal endothelial tissue, including an elongate injector body which has a piston rod passage and in which an injector piston rod having a screw thread is guided in a longitudinally displaceable manner. The injector is provided with two operating modes for the displacement of the injector piston rod and is able to be switched between the modes. The first operating mode defines an ejection operation and the second operating mode defines a screwing operation. The injector body has at least one retractable and deployable wing grip, wherein the operating mode is set to ejection operation by the deployed position and the operating mode is set to screwing operation by the retracted position. The injector piston rod includes a stop element.

INTRAOCULAR LENS INJECTOR

An intraocular lens (IOL) injectors and associated methods are described. The IOL injectors may include a collapsible portion configured to reduce the length of the IOL injector when the collapsible portion is altered from an uncollapsed configuration to a collapsed configuration. In some instances, an IOL may be advanced from a storage location to a dwell location when the collapsible portion is altered from the uncollapsed configuration to the collapsed configuration. The IOL injectors may also include a combination push and screw drive.