20 results about "Eye implant" patented technology

The invention discloses an eye implant which comprises an implant body, the implant body is in a strip shape, the outer contour of the upper surface of the implant body is in a protruding arch shape or a semi-arch shape and used for making contact with a sclera, and the lower surface of the implant body is in a plane shape and used for making contact with a choroid; a longitudinal drainage groove is formed in the upper surface of the implant body in the front-back direction of the implant body. The whole implant body is of a structure that the front end and the rear end are gradually thin and the middle is thick or the rear end is gradually thin and the middle is thick to the front end, the implant body can smoothly enter the suprachoroidal space, an originally narrow gap of the suprachoroidal space is expanded, the outflow amount of aqueous humor from the suprachoroidal space is increased through the longitudinal drainage grooves, the drainage effect is good, blocking is not prone to occurring, and the application range is wide. The effect of reducing the intraocular pressure is achieved. The lower surface of the implant body is planar, so that the attachment area of the implant body and the choroid is larger, the implant body can be stably attached to the choroid, the risk of displacement of the anterior chamber and the choroid is reduced, the implant body is prevented from being exposed to the anterior chamber to touch the cornea, and the risk of loss of corneal endothelial cells is reduced to the maximum extent.

The present invention discloses an ocular implant delivery device, comprising a housing, a rotating wheel, a push-needle connecting rod assembly, a retraction connecting rod assembly, a sleeve and a puncture needle, a through hole is provided in the direction of the distal end of the housing, the sleeve passes through the through hole from the housing and extends to the outside of the housing, the sleeve is fixedly connected to the housing, the puncture needle passes through the sleeve, the proximal end of the puncture needle is fixedly connected to the retraction connecting rod assembly, the push needle of the push-needle connecting rod assembly passes through the inner hole of the puncture needle, the rotating wheel is connected in the housing through a rotating shaft, an opening corresponding to the rotating wheel is provided on the housing, the rotating wheel is respectively connected to the push-needle connecting rod assembly and the retraction connecting rod assembly through a gear rack mechanism, and as the rotating wheel rotates, the push-needle connecting rod assembly can be driven to move toward the distal end of the housing or the retraction connecting rod assembly can be driven to move in a direction away from the distal end of the housing. The present invention has a simple structure, is easy to operate, can improve the accuracy and safety of surgery, and makes surgery more labor-saving, and has higher system stability and reliability.

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 present invention belongs to the field of medical instruments, and discloses an ocular implant instrument assembly. When using the ocular implant instrument assembly, the pressing part of the ocular puncture device is first pressed to push the hollow puncture needle forward to puncture the front closed end of the syringe and make the injection accommodating area, the peripheral wall needle hole and the front end needle hole connected. After the ocular injection is injected into the visible or potential tissue gap, cavity system and blood vessel of the eye to expand it, the auxiliary guide needle is further connected to the implant guide structure, and then the ocular implant can be implanted into the expanded ocular tissue gap, cavity system and blood vessel. The whole process has precise control over the puncture depth and has high stability, and is conducive to achieving quantitative injection.

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 present application discloses an ocular implant delivery device comprising a housing (1), a rotating wheel (4), a push needle linkage assembly (5), a retracting linkage assembly (6), a sleeve (2), and a puncture needle (3). A through hole (14) is provided at a distal end of the housing (1), and the sleeve (2) extends from an inside of the housing (1) to an outside of the housing (1) through the through hole (14) and is fixedly connected to the housing (1). The puncture needle (3) runs through the sleeve (2), and an end of the puncture needle (3) facing away from a needle tip of the puncture needle (3) is fixedly connected to the retracting linkage assembly (6). A push needle (51) of the push needle linkage assembly (5) extends through an inner hole of the puncture needle (3), the rotating wheel (4) is connected to the housing (1) via rotating shafts, and an opening (15) corresponding to the rotating wheel (4) is provided on the housing (1). The push needle linkage assembly (5) and the retracting linkage assembly (6) are movably connected to end surfaces on two sides of the rotating wheel (4) respectively, so that the push needle linkage assembly (5) is driven to move in a direction toward the distal end of the housing (1) or the retracting linkage assembly (6) is driven to move in a direction facing away from the distal end of the housing (1) by rotating wheel (4) rotating.

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.

A system for spatially aligning an external measuring device and an intraocular implant, the system comprising: an intraocular implant configured to be implanted into an eye of a user to monitor or measure intraocular parameters; and an external measuring device configured to receive and measure the intraocular parameters when aligned with the intraocular implant, the external measuring device comprising one or more visual targets and one or more mirrors operable to align a line of sight of the eye so that the intraocular implant is aligned with a main optical path of the external measuring device for measuring.

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 discloses an ocular implant delivery device, which comprises a housing, a rotating wheel, a push-needle connecting rod assembly, a retraction connecting rod assembly, a sleeve and a puncture needle, wherein a through hole is provided in the direction of the distal end of the housing, the sleeve passes through the through hole from the housing and extends to the outside of the housing, the sleeve is fixedly connected to the housing, the puncture needle passes through the sleeve, the end of the puncture needle away from the needle tip is fixedly connected to the retraction connecting rod assembly, the push needle of the push-needle connecting rod assembly passes through the inner hole of the puncture needle, the rotating wheel is connected in the housing through a rotating shaft, an opening corresponding to the rotating wheel is provided on the housing, the push-needle connecting rod assembly and the retraction connecting rod assembly are respectively movably connected to the end faces on both sides of the rotating wheel, and as the rotating wheel rotates, the push-needle connecting rod assembly can be driven to move toward the distal end of the housing or the retraction connecting rod assembly can be driven to move in the direction away from the distal end of the housing. The ocular implant delivery device of the present invention has a simple structure, a compact size, and is easy to operate, and can improve the efficiency of doctors' operations and the safety of operations.

The present invention discloses an ocular puncture device and an ocular implantation instrument assembly. The device comprises a syringe, an elastic push assembly, a hollow puncture needle, at least one injection accommodating area and an ocular injection. The elastic push assembly comprises a pressing portion and a puncturable movable sealing portion which is located in the inner cavity of the syringe and can be elastically connected with the pressing portion in front and back. The hollow puncture needle is fixedly connected to the pressing portion and is formed with a front end needle hole and a peripheral wall needle hole. The injection accommodating area is formed in the inner cavity area of ​​the syringe which is jointly surrounded by the front closed end of the syringe, the inner cavity peripheral wall of the syringe and the movable sealing portion. The ocular injection is pre-stored in the injection accommodating area. By pressing the pressing portion, the hollow puncture needle can be pushed forward to puncture the front closed end of the syringe, so that the ocular injection can flow outward from the injection accommodating area, the peripheral wall needle hole and the front end needle hole which have been connected in sequence. This process has precise control over the puncture depth and has high stability, and is conducive to quantitative injection.

An eye implant includes a plurality of photodetectors and a plurality of electrodes electrically coupled to the plurality of photodetectors. The plurality of electrodes are configured to electrically couple each photodetector of the plurality of photodetectors to one or more neurons, and the electrical coupling between each photodetector and the one or more neurons is entirely passive.

Device and method for characterizing an eye-implant system. This method characterizes a target system comprising a target implant and a target eye, said target system being characterized by an optical performance (CP) and a power (P) of said target implant.It comprises the following steps: - obtaining (E10) an optical property adjustment value (C1), intended to adjust at least one adjustable optical property (PA) of said target system (SC), - obtaining (E20) an optical performance adjustment value (C2) of said target system; - determining (E30, E30') a correspondence between said power (P) and the optical performance (CP) from at least one optical property (PO) of the target system, at least one of which is adjustable (PA), said optical property adjustment value (C1) and said performance adjustment value (C2), the determination (E30) comprising the steps: (i) adjusting (E30A) a value of said adjustable property (PA) with said optical property adjustment value (C1), (ii) adjusting (E30B) a value of said optical performance (CP) or said power (P) with said performance adjustment value (C2). Figure for abstract: Fig.6.

1. The name of this design product: Guide part of eye incision guide tool. 2. Purpose of the product of this design: The entire product of this design is used to guide the creation of an incision in the eye, such as for implanting an ocular implant (e.g., a drug delivery device), and the part that requires protection is the guide portion of the eye incision guide tool. 3. The design key point of this appearance design product lies in the shape of the product. 4. The picture or photo that best illustrates the design points: Stereoscopic diagram 1. 5. Other matters that require explanation: The portion indicated by the dotted line is not the subject of the request for protection.

An eye implant includes a plurality of photodetectors and a plurality of electrodes electrically coupled to the plurality of photodetectors. The plurality of electrodes are configured to electrically couple each photodetector of the plurality of photodetectors to one or more neurons, and the electrical coupling between each photodetector and the one or more neurons is entirely passive.

A system for spatially aligning an external measuring device and an intraocular implant, the system comprising: an intraocular implant configured to be implanted into an eye of a user to monitor or measure intraocular parameters; and an external measuring device configured to receive and measure the intraocular parameters when aligned with the intraocular implant, the external measuring device comprising one or more visual targets and one or more mirrors operable to align a line of sight of the eye so that the intraocular implant is aligned with a main optical path of the external measuring device for measuring.

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.