A61F2/148

Corneal implant systems and methods

An example method for cutting a plurality of lenticules from a donor cornea includes receiving a donor cornea, cutting a first layer of a first set of lenticules from the donor cornea, and cutting a second layer of a second set of lenticules from the donor cornea. The lenticules are cut according to a pattern that to maximizes the number of lenticules, thereby maximizing the number of implants from the single donor cornea. An example implant handling device includes a body. The body includes a flattened end configured to receive a corneal implant and keep the corneal implant from rolling or folding. The flattened end has a width and a height, the width being greater than the height. The body includes a slit opening to the flattened end, the slit opening configured to allow the corneal implant to pass into the flattened end.

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.

SECURING AND DELIVERING GRAFTS FOR ENDOTHELIAL KERATOPLASTY

Ophthalmic tissue delivery devices that include an injector and injector carriers and methods for endothelial keratoplasty surgical procedures are provided. Injectors include a conduit sized to accommodate ophthalmic tissue. One end of the injector is configured for insertion into a patient's eye to inject ophthalmic tissue. Injector carriers include a container, a cap configured to seal an opening of the container. The injector can be coupled to a pressure actuated valve and a syringe where activating the syringe opens the value and allows fluid to flow from the syringe, through the valve, and through the injector to dispense ophthalmic tissue from the injector into a patient's eye without the need to physically contact the ophthalmic tissue.

Lamellar Corneal Autologous Or Homologous Graft In Refractive Surgery
20220409362 · 2022-12-29 ·

A method of lamellar corneal graft implantation is disclosed herein. In one or more embodiments, the method includes the steps of: (i) modifying a genetic component of a lamellar cornea or other tissue of an animal so that the lamellar cornea or other tissue of the animal can be used for human transplantation; (ii) decellularizing the lamellar cornea or other tissue ex vivo using chemical means; (iii) modifying a shape of the lamellar cornea or other tissue before or after transplantation; and (iv) applying a photosensitizer and ultraviolet radiation to the lamellar cornea or other tissue so as to crosslink collagen and intercellular proteins of the lamellar cornea or other tissue, kill the cells exposed to the photosensitizer, and eliminate an immune response by a host to the implanted lamellar cornea or the tissue.

Ablatable Corneal Inlay For Correction Of Refractive Errors And/Or Presbyopia
20220409361 · 2022-12-29 ·

An ablatable corneal inlay for correction of refractive errors and/or presbyopia, and a method of correcting refractive errors and presbyopia in an eye of a patient using an ablatable corneal inlay is disclosed herein.

Corneal Implant
20220378616 · 2022-12-01 ·

A method for performing a corneal transplantation comprising the steps of: inserting at least part of a corneal implant into the anterior chamber of the eye, the corneal implant comprising an implant portion and a manipulating portion, the manipulating portion comprising non-endothelial tissue; positioning the implant portion of the implant to adhere to the posterior surface of the cornea using the manipulating portion.

Capsular tension ring inserter and method

A capsular tension ring inserter (10) and method includes a cannula (54) adapted to house a capsular tension ring (CTR) (26) having a leading eyelet (32), a hook element (56) disposed within the cannula (54) that engages and moves the CTR (26) during deployment, and a suture (28) placed on the leading eyelet (32) and fed back through the cannula (54) to allow a user to control insertion of tile CTR (26) into a capsular bag (42) of an eye (40) by pulling on the suture (28) during insertion of the CTR (26).

HANDHELD IMPLANTATION DEVICES FOR IMPLANTATION OR RETINAL TISSUE IMPLANT
20220354634 · 2022-11-10 · ·

A handheld implantation device for implantation of a retinal tissue implant at an implantation site. The handheld implantation device includes a handheld implantation tool having a leading implantation tool end and a trailing implantation tool end, an implant holder for peripherally holding a retinal tissue implant including an uppermost viable retinal tissue and a lowermost basement membrane and a clinician-operated attachment arrangement for initial attaching the implant holder at the leading implantation tool end and subsequent selected detaching the implant holder therefrom at the implantation site for implantation of the implant holder together with the retinal tissue implant thereat.

DEVICE AND SYSTEM FOR INJECTING BIOLOGICAL TISSUE

A device, kit, and method for aspirating graft tissue and delivering the graft tissue to a target delivery site. An injector comprises a cylinder and a plunger that is both linearly and rotatably advanceable and retractable within the cylinder. A kit comprises an injector, a cartridge, and a cartridge coupling element that connects the cartridge to the injector. The kit may also include a container that is configured to retain a cartridge and to facilitate connection between the injector and the cartridge. The container includes at least one fluid barrier that prevents spillage of storage solution from the container when the injector is at least partially inserted into the well of the container.

Systems and methods for tissue dissection in corneal transplants

A dissection system for corneal transplants includes a housing including a contact side to be positioned against a cornea. The housing includes an interior passageway with an opening at the contact side. The dissection system includes a blade assembly disposed in the interior passageway. The blade assembly includes a first blade and a second blade. The first blade includes a first cutting edge and the second blade includes a second cutting edge. The first blade and the second blade are movable relative to the housing such that the first cutting edge and the second cutting edge extend through the opening of the housing and out of the interior passageway. The first cutting edge produces a first cut in the cornea. The second cutting edge produces a second cut in the cornea. The first cut and the second cut define a volume of tissue for removal from the cornea.