8 results about "Eye implant" patented technology

This invention discloses an eyeball implant. According to this invention, an eyeball implant can be permanently implanted on the eyeball without the hassle of attachment and detachment, and can form a beautiful appearance that is integrated with the pupil without blocking the light-entering aperture.

The invention relates to an extraocular implant (1) used for preventing the worsening of pathological myopia, said implant comprising a frame (10) in the form of an arm having anchoring means at one end and a concavity (120) at the other. The implant (1) is characterized in that it also comprises a pocket (13) in which a suitable compound is placed to inflate said pocket (13). The pocket (13) is positioned at the second end of the arm to occupy said concavity (120). The implant (1) also comprises a hooking device (130) arranged on said pocket (13) to be positioned on the posterior part of the eye. Figure to be published with the abbreviation: Figure 4

The application discloses an eye implant injector and an eye implant injection method. The eye implant injector comprises a holding handle, a holding surface on the outside of the holding handle, a hollow inside of the holding handle forming a sliding cavity, a front end port on the front end of the holding handle, the front end port communicating with the sliding cavity, a sliding body arranged in the sliding cavity of the holding handle and in sliding cooperation with the sliding cavity, an outer catheter, a hollow inside of the outer catheter forming a guide cavity, a rear end of the outer catheter connected with the front end of the holding handle, an injection needle connected with the sliding body, the injection needle passing through the front end port and in sliding cooperation with the guide cavity of the outer catheter, and an end clamp installed on the front end of the injection needle and having at least a first clamp head and a second clamp head capable of being opened and closed with each other. The application can conveniently implant the eye implant, is convenient to operate, and can better guarantee the implantation effect.

The invention relates to a diffractive ocular implant with correction of far vision and magnification of near vision, characterized in particular in that it has a phase transfer curve as a function of the viewing distance (abbreviation PTF-TF) in which there is no discontinuity in the corneal plane of at least 1.3 D, advantageously greater than 1.45 D, on a depth of field between intermediate vision and near vision, i.e. between 0.5 D and 4 D for spatial frequencies from 0 to 100 cycles / mm for a pupil of at least 3 mm in diameter.

The invention relates to a method and device for determining the size of a phakic corrective implant for correcting the vision of the eye (3) of a patient. On the basis of a horizontal section (6) of the anterior segment of the eye and an optical power Po, the size of a plurality of implants taken from a base Ii is determined (34), the image of the respective positions of these implants is geometrically simulated (35) on reconstructed curves s1, s2,...si of the section, then the value Vtsci of the theoretical vault without compression and the total theoretical compression CTi are calculated (37), the probability of obtaining a satisfactory vault between two threshold values S1 and S2 is calculated (42) by taking into consideration the cases of patients who have been operated for whom the respective differences between their Vtsci and vaults postoperatively for a given compression CTi have been calculated, and the implant size that has the highest probability between S1 and S2 is selected (43).

A type of under-eye implant includes two mirror-symmetrical implant units. Each implant unit is arc-shaped, tapering at both ends and thickening in the middle along its length. All edges and surfaces are smoothly transitioned through rounded surfaces. The arc trajectory of the implant unit matches the natural contour of the lower eyelid from the inner corner to the outer corner, with the radius of curvature of the inner segment near the inner corner being larger than that of the outer segment near the outer corner. Each implant unit has a through-hole at each end. The implant is made of expanded polytetrafluoroethylene (ePTFE), whose microporous structure induces tissue cell ingrowth after implantation, preventing implant displacement and light transmission, and demonstrating good biocompatibility.

The utility model discloses eye implant conveying equipment, and relates to the technical field of medical instruments, the eye implant conveying equipment comprises a pen assembly, a needle, an injection mechanism and a protection assembly, the needle is arranged on the pen assembly, and the needle is used for containing an eye implant; the injection mechanism is arranged on the pen assembly, and the injection mechanism is used for pushing the eye implant out of the needle head so as to achieve conveying of the eye implant; the protection assembly is arranged on the pen assembly and can move, the protection assembly locks the injection mechanism when moving to a first position, and the protection assembly releases the injection mechanism when moving to a second position. According to the eye implant conveying equipment, the protection assembly with the locking and releasing functions is introduced, accurate control over the injection mechanism is achieved, and therefore the safety of the eye implant conveying equipment is remarkably improved, and unnecessary medicine release or medical accidents caused by misoperation are prevented.

The present invention relates to an under-eye implant prosthesis, for use in implantation below the lower orbicularis oculi muscle. The prosthesis is in a prismatic shape, with the cross-section in a regular triangular shape. The prosthesis is a triangular prism segment with uniform thickness, or a combination structure of a plurality of segments with increased thicknesses from one end to the other end but uniform thicknesses in a single segment. The under-eye implant prosthesis of the present invention solves the problems of filler inabsorbability and durability, and possesses good safety, persistent effects, significant improvements, and good softness. The special morphological structure of the prosthesis features superior support capacity, and can restore the peak-like structure in the under-eye lateral view, without widening the structure.