44 results about "Ocular prosthesis" patented technology

Methods and devices for ophthalmic tissue closure and fixation of ophthalmic prostheses are provided. In accordance with some embodiments, devices for both grasping and clipping a plurality of ocular tissue and ocular prostheses are provided. Various device embodiments are provided for both malleable clips and delivery of normally closed clips (i.e. shape memory). The device may accommodate a plurality of clips which include, but are not limited to: malleable metals, absorbable, shape memory, drug-eluting, and adhesive dispensing. The clips may be pigmented to match the colors of associated tissue (cornea, iris, conjunctiva, sclera, retina) to serve to camouflage fixation clips for healing duration or permanently. According to one aspect, shallow angle access to anatomy may be provided by specialized angulation of device shaft and closure jaws that are intended to access the eye through a small self-healing cornea incision and / or any ocular tissue.

An ocular prosthesis includes a display device visible at an anterior portion of the ocular prosthesis. The display device is configured to present a changeable image that represents a natural appearance and movement for a visible portion of an eyeball of a subject. A system includes, besides the ocular prosthesis, an implant marker configured to move with an orbital implant disposed in an eye socket of a subject. A method includes determining a change in orientation of an orbital implant in a subject and determining an update to a natural appearance for a visible portion of an eyeball for the subject based on the change in orientation of the orbital implant. The method also includes rendering an update to an image of the natural appearance for a display device disposed in an ocular prosthesis configured to be inserted in the subject anterior to the orbital implant.

The invention relates to the field of prosthesis products, in particular to an ocular prosthesis base and a preparation method thereof, and an ocular prosthesis and a preparation method thereof. Ocular prosthesis implant matching loci, rectus suture loci and a porous space structure are arranged on the ocular prosthesis base. The ocular prosthesis base is high in matching degree with a healthy eye, high in comfort level, high in safety and slight in postoperative rejection, and can achieve the effects of promoting growth of cells and tissues, diminishing inflammation and promoting postoperative recovery; magnetic matching loci of the ocular prosthesis base and an ocular prosthesis implant are convenient for wearing and positioning the ocular prosthesis implant; and meanwhile, due to movement of the ocular prosthesis base, movement of the ocular prosthesis implant can be driven, and a super-simulation effect is achieved.

The invention discloses a macromolecular polymer hydrogel composite Medpor ocular prosthesis holder and a preparation method thereof. The ocular prosthesis holder is provided with a porous structure with inner pore channel completely penetrating, wherein the porosity is 50 to 85 percent, an inner diameter of the pore channel is 150 to 800 micrometers, and the wall of the pores is modified by adopting hydrogel. The preparation method comprises the following steps: (1) modifying an inner surface of the Medpor ocular prosthesis holder; (2) preparing a macromolecular polymer suspension solution; and (3) under the ngative pressure condition, guiding a macromolecular polymer into the inner surface-modified Medpor ocular prosthesis holder, cross-linking by using a cross-linking agent, thus obtaining the needed hydrogel composite porous ocular prosthesis holder. The ocular prosthesis holder has a bionic extracellular matrix, so that the biological compatibility of the material can be improved,the viscosity and proliferation of the angiogenesis cells can be promoted, the rapid vascularization of the ocular prosthesis holder can be promoted, the complication of the ocular prosthesis holderafter the implanting operation such as exposure and infection of the ocular prosthesis holder can be reduced, and the application value is good.

The present application discloses a cleaning device for a prosthetic eye, which includes a housing, a prosthetic eye salvaging component and a debris removal component; the housing includes a prosthetic eye cleaning chamber and a removal component placement chamber; the adhesive removal component placement chamber is located in the artificial eye cleaning chamber. One side of the warehouse is communicated with the artificial eye cleaning warehouse; the main body of the artificial eye salvage component is spoon-shaped, which is used to fish out the artificial eye and put it into the debris sticking component; the debris sticking component includes a tape laying component and a tape extrusion component. components; the number of tape laying components is two; the tape laying components include tapes and rollers, and the number of rollers of one tape laying component is two, which is used to rotate and retract the tape by itself; the tape is a tape coated with glue on one side, The number is two, and the glued sides of the two tapes face each other; the tape extrusion component plays the role of forcing the two tapes to approach each other by pressing the tape multiple times to remove the sundries on the prosthetic eye; The technical effect that the cleaning equipment will not leave floating impurities on the prosthetic eye after the prosthetic eye is cleaned.

The invention discloses an adjustable conjunctival sac expander and a method for expanding a conjunctival sac through the adjustable conjunctival sac expander. The conjunctival sac expander comprises two supporting modules used for expanding the conjunctival sac, the two supporting modules are oppositely arranged, and the outer surfaces of the two oppositely-arranged supporting modules are the outer surfaces of protruding balls. The two oppositely-arranged supporting modules are fixed together through an adjusting device which is used for supporting and is capable of adjusting the distance between the two supporting modules. The length of an eye shaft is determined, the size of the conjunctival sac expander is determined, the conjunctival sac expander is placed in the conjunctival sac, the distance between the two supporting modules is expanded at regular intervals through the adjusting device, the conjunctival sac expander is taken out until the needed expansion degree of the conjunctival sac is reached, and an ocular prosthesis sheet is mounted. The adjustable conjunctival sac expander is used for expanding the conjunctival sac, the ideal expansion effect can be achieved, and the problem that the ocular prosthesis sheet cannot be mounted after the conjunctival sac is narrow can be effectively solved.