44 results about "Ocular prosthesis" patented technology

An ocular implant insertion apparatus that includes a plunger driver that is not manually powered and ocular implant insertion methods. There are a variety of instances where an ocular implant is inserted into the anterior chamber, posterior chamber, cornea, vitreous space and/or other portion of an eye. Exemplary ocular implants include, but are not limited to, lenses, capsular tension rings, ocular prosthesis and lamellar transplants.

The invention provides an ocular socket prosthesis comprising a hydrogel consisting essentially of a biocompatible hydrophilic polymer onto which tissues can be directly sutured. Preferably the prosthesis comprises the polymer both in its homogeneous gel form and in its sponge form, and the two forms are chemically joined at their interface via an interpenetrating polymer network (IPN). However, it is also contemplated that the prosthesis of the invention may be made predominantly or entirely from the sponge form of the polymer. Methods of production of the prosthesis of the invention and of surgical implantation are also disclosed and claimed.

Provided is a method of mold silicone filling, making and peeling animal specimen. The method of mold silicone filling, making and peeling the animal specimen is characterized in that Sumianxin is injected into animal muscle to enable an animal to be conducted mercy killing, scarfskin of an animal body is peeled and separated from both a head and the animal body, corrosion prevention powder is coated on the inner surface of the scarfskin which is peeled; the animal muscle and bones are posed to be cooled and frozen and the design is finalized; the model is completely coated by oil mud, the animal body model coated inside is taken out after the oil mud is dried, release agent is coated on the inner surface of the model; model silicone and curing agent are mixed and poured into the model, specimen prosthesis is taken out after silicone is molded; original scarfskin of the animal is coated on the silicone prosthesis, incision in stomach is sewed, ocular prosthesis is assembled on the eye portions, and modeling is finished. The method of mold silicone filling, making and peeling the animal specimen has the advantages of being capable of eliminating the problem of being damaged by worms, reducing environment pollution due to the fact that high toxic preservation is not used, prolonging storage time of the specimen, and increasing sense of reality and hand feel of the specimen, meanwhile fast in drying, free from deformation, low in manufacturing cost and convenient to operate.

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.

The present invention discloses a calcium magnesium silicate porous ceramic ball ocularprosthesis seat and a preparation method. The calcium magnesium silicate porous ceramic ball ocularprosthesis seat comprises a non-biodegradable calcium magnesium silicate porous ceramic ball ocularprosthesis seat and a degradable calcium magnesium silicate modification layer covering the surface of the pore channel wall, wherein the ocularprosthesis seat has a completely penetrating porous structure, the porosity is 35-85%, the pore channel diameter is 60-800 [mu]m, the ocularprosthesis seat is a porous diopside ceramic ball constructed by using a three-dimensional printing technology, and the pore channel wall is subjected to degradable calcium magnesium silicate gel precursor filling modification and secondary sintering to obtain the product. According to the present invention, after the calcium magnesium silicate porous ceramic ball ocularprosthesis seat is implanted into the eye socket, the neovessel growth is promoted through the bioactivity of the pore channel surface layer calcium magnesium silicate layer so as to achieve the rapid vascularization in the pore channel and avoid the displacement or prolapse of the ocularprosthesis seat; and the calcium-silicon-based ceramic ocularprosthesis seat pore channel wall bioactivity is excellent, and the application value is provided in the reconstruction of the ocular base.

The invention discloses a novel making method of a skinned specimen of fish. The method comprises steps as follows: (1), the fish is anesthetized and killed, and mucus is cleaned; (2), dimensions of the fish are measured and photographed; (3), the posture of a fish body is set, and a skeleton diagram is drawn; (4), cutting as well as peeling and carving of prosthesis is performed; (5), a proper notch is selected and skin is peeled off; (6), the fish skin is subjected to degreasing and preservative treatment; (7), the prosthesis is smeared with dextrin, skin suture is performed, and natural drying is performed after shaping; (8), repair and inlaying of ocular prosthesis are performed; (9), water-based acrylic acid modified polyurethane dispersion is adopted for coloring, and wood lacquer issprayed after coloring. The method has the advantages as follows: preparation is simple, and cost is low; fish postures can be adjusted according to requirements in the preparation process; a morphological structure is measured scientifically and systematically; the prepared fish skinned specimen is environmentally friendly, non-toxic, resistant to high temperature, acid and alkali, anti-aging and easy to store; the structure is complete and attractive, detailed parts are vivid and lifelike, and the specimen is widely applied to teaching, scientific research, collection and ornamentation.

The invention discloses an iris rotating artificial eye and a manufacturing method thereof. The artificial eye is designed into a hollow thin layer, an interlayer structure is arranged in the artificial eye, and an iris membrane is arranged in the interlayer structure of the artificial eye, wherein a magnetic driving sheet similar to a cornea contact lens sample is placed into a conjunctival sac on the back of the artificial eye to drive the iris membrane to move. The contradiction problem in the prior artificial eye, namely the relation between the size and motion degree of the artificial eye, is solved, so the artificial eye can meet the requirements of eyelid plumpness and the simulated motion of the artificial eye at the same time.

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 invention belongs to the field of medical device technology, and is especially one kind of artificial eye implanted directly into human body. The artificial eye is made with porous PTFE and has diameter of 1.2-2.5cm. It is made through the process of: mixing PTFE resin with sodium chloride in certain ratio, molding, sintering to obtain mixed material, forming into required shape, and boiling to eliminate sodium chloride to obtain the artificial eye. The artificial eye of the present invention is light, flexible, hydrophilic, air permeable, humidity permeable, tissue compatible, comfortable and good in wearing effect.

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 relates to the technical field of antibacterial agents and specifically relates to an antibacterial care solution composition and application thereof. The composition is prepared from the following ingredients of methylparaben, pyrrolidone sodium hydroxide, hexadecylpyridinium chloride, nano zinc, a freshener, a positive-ion surface active agent, acetone chloroform, polyethylene glycol, a buffer agent, a permeability regulator, taxus chinensis extractive and deionized water, wherein the taxu chinensis extractive is polypeptide compound which is extracted from taxus chinensis braches and leaves and has an antibacterial effect; the positive-ion surface active agent is benzalkonium chloride or benzalkonium bromide; the permeability regulator is a saturated sodium chloride, saturated potassium chloride or saturated glucose solution. The antibacterial care solution contains varieties of ingredients with antibacterial and sterilizing effects, the properties of chemical substances are stable, the property of the composition is gentle, and the antibacterial care solution composition can be applied to antibacterial and sterilizing storage of ocular prosthesis or contact lensesand has no irritation to the human body.

The purpose of the present invention is to provide an artificial eye production method whereby an artificial eye which is easily produced and which has a comparatively low risk of toxicity may be produced. The artificial eye production method for producing an artificial eye, according to the present invention, in order to achieve the purpose of the present invention, comprises the steps of: generating composite artificial eye data including 3D shape information of an artificial eye having an iris region, and 2D surface treatment information corresponding to the iris region; on the basis of the3D shape information, 3D printing an artificial eye main body using a 3D printing device; performing a toxicity treatment on the 3D-printed artificial eye main body; and on the basis of the 2D surface treatment information, performing surface treatment so that a predetermined image is expressed on the iris region.

The invention discloses a soft porous silica gel ocular prosthesis pedestal and a preparation method thereof. The soft porous silica gel ocular prosthesis pedestal is prepared from a silica gel material and has a high-porosity interpenetrating porous structure, and microcosmic pores in the surface and the interior of the porous material are uniformly distributed and communicate with one another; the preparation method comprises the following steps of sequentially adding a half amount of gelatin particles into a semispherical polytetrafluoroethylene mold, permeating by using an ethanol aqueoussolution, performing drying at constant temperature, performing bonding and molding, mixing a silica gel prepolymer with a cross-linking agent, and carrying out uniformly mixing under mechanical stirring to obtain a silica gel prepolymer mixture; and introducing the negative-pressure silica gel prepolymer mixture into a spherical gelatin template for cross-linking and curing, and removing the template in a constant-temperature water bath to obtain the soft porous silica gel ocular prosthesis pedestal. The pure silica gel ocular prosthesis pedestal is high in biocompatibility and biological stability, controllable in pore diameter, high in pore connectivity and extremely high in porosity, the survival rate of implants is increased through structural and mechanical property optimization, andpostoperative complications are reduced; and the method is simple and low in material cost.

The invention relates to an artificial eye piece manufacturing method, an artificial eye piece and an artificial eye. The artificial eye piece manufacturing method comprises the steps of obtaining anartificial eye piece three-dimensional model and patient fellow eye macroscopic features; according to the fellow eye macroscopic features, adjusting the artificial eye piece three-dimensional model to obtain artificial eye piece three-dimensional data; and according to the artificial eye piece three-dimensional data, manufacturing the artificial eye piece. According to different persons, personalized customization is carried out, fellow eye differences are reduced, the authenticity is high, the attaching degree to the human body is high, a mold is not used, the manufacturing period is short,and the manufacturing process is simple.

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.

Wearable ocular devices (such as ocular prostheses or contact lenses) utilizing diffraction gratings to produce color, as well as methods for producing such devices, are provided. A diffraction grating on the device may diffract the incident light to the observer. The result may be colored light that appears to originate from the wearers eyes. The diffraction grating may achieve a look or feeling that is qualitatively or quantitatively different from the look or feeling achieved by previous devices that use dyes or inks.