17 results about "Conjunctival sac" patented technology

The utility model relates to a glaucoma drainage tube with double drainage discs, which belongs to the technical field of medical artificial implants and comprises a drainage tube body, a drainage mechanism is arranged on the right side of the drainage tube body and comprises a fixing structure fixedly mounted on the outer side of the drainage tube, and the double-layer drainage discs are fixedly mounted on the right side of the fixing structure. The glaucoma drainage tube with the double drainage discs can be easily implanted into an anterior chamber corner during an operation, can be accurately butted with an aqueous fluid generation source, ensures that aqueous fluid flows in without hindrance, lays a solid foundation for subsequent drainage, can be tightly attached to a sclera by virtue of the characteristics of the fixing structure, greatly reduces the displacement risk of an implant, ensures stable operation of a whole drainage system, and has a good application prospect. The upper drainage disc and the lower drainage disc cooperatively operate, the conjunctival sac is accurately opened, a stable filtering bubble is formed, the drainage groove matched with the drainage tube body in the drainage tube forms a smooth aqueous humor channel, aqueous humor drainage is accelerated, the supporting structure efficiently promotes aqueous humor diffusion between the two layers of drainage discs, and the drainage efficiency is comprehensively optimized.

The invention relates to the technical field of medical instruments, in particular to a frameless amniotic membrane mirror device, a manufacturing method and a using method, and the frameless amniotic membrane mirror device comprises an amniotic membrane tissue layer and a biocompatible thin film layer formed by spraying a mixed solution of polymethyl acrylate and polyvinyl alcohol; the overall diameter of the device is 14 mm, the rise of the device is 6.2 + / -0.1 mm, and the device can be directly implanted into the ocular surface to cover the cornea without a frame support. The manufacturing method comprises the steps of amniotic membrane treatment, model eye forming, mixed solution preparation, membrane spraying and forming, trimming and sterilization. The application method relates to implantation after surface anesthesia, fitting observation and subsequent taking-out. Through the frameless conformal fitting design, the problems that an existing framed amniotic membrane mirror is displaced and cannot be worn by a patient with strong foreign body sensation and shallow conjunctival sac are solved, and meanwhile secondary trauma of a suture operation is avoided. And the residual film after the amniotic membrane is dissolved can continuously provide protection, and the amniotic membrane has the advantages of good fitness, high patient comfort, simplicity and convenience in operation and good safety.

The utility model relates to the field of medical instruments, in particular to a novel adhesive type conjunctival sac flushing water receiving bag which comprises a plastic protective film. The drainage bag and the drainage tube are further included, the plastic protective film is used for being pasted and covering the eyes, and the drainage bag used for collecting flushing fluid is fixedly connected to the right side of the plastic protective film; according to the utility model, the fitting degree with the eyes can be increased by arranging the plastic protective film which is made of the elastic material and is fitted with the eye curve design, and the drainage bag with the drainage tube is arranged on the right side of the plastic protective film and can be used for discharging waste water from the drainage tube, so that the eye washing time of an operator can be shortened without pouring liquid for many times; the labor intensity of nurses is relieved, the arc-shaped flow guide plate is arranged on the plastic protective film, flushing fluid can be guided to flow into the drainage bag, the risks of flushing fluid splashing and pollution can be reduced, the water level condition in the drainage bag can be monitored in real time through the water level sensor arranged on the drainage bag, and waste flushing fluid is prevented from overflowing.

This utility model relates to a conjunctival sac support sheet, comprising a light-transmitting support sheet body, the support sheet body having opposing outer and inner surfaces, and a plurality of first drainage holes provided on the support sheet body, the first drainage holes penetrating the support sheet body along the thickness direction and located in the edge region of the support sheet body. The first drainage holes not only have a stronger drainage function, but can also be used for suture fixation, allowing doctors to perform suture surgery to fix the support sheet in the conjunctival sac and prevent accidental dislodgement.

The invention discloses dexamethasone eye emulsion supramolecular hydrogel and a preparation method thereof, and belongs to the technical field of medicines. The dexamethasone eye emulsion supramolecular hydrogel is prepared from the following components in percentage by mass volume: 0.02 to 0.06 percent of dexamethasone, 0.5 to 5 percent of liquid oil, 1 to 6 percent of emulsifier and 1 to 5 percent of polyphenol. According to the dexamethasone ophthalmic emulsion supramolecular hydrogel provided by the invention, dexamethasone is used as a main drug, and a nanoemulsion is used as an insoluble drug carrier to improve the solubility of the dexamethasone ophthalmic emulsion supramolecular hydrogel; the emulsifier on the surface of the nanoemulsion can be self-assembled with polyphenol through hydrogen-bond interaction to form a supramolecular hydrogel network. After the preparation is dropped into the conjunctival sac, the drug-loaded nano-emulsion is gradually released and the free drug is further released under the shear thinning action caused by tear dilution and blinking, so that the long-acting treatment concentration is maintained on the ocular surface, and the defects that the drug is easily lost due to nasolacrimal duct drainage, the retention time of the ocular surface is short and the like in the traditional eye drops are effectively overcome.

The invention belongs to the technical field of medical auxiliary instruments, and particularly relates to an eyedrop instillation assist device which comprises a negative pressure adsorption base, a pupil calibrator and a liquid medicine squeezer. A negative pressure adsorption base, a pupil calibrator and a liquid medicine squeezer are arranged, the negative pressure adsorption base comprises an adsorption long arm, an upper suction cup, a lower suction cup and a squeezing air bag, the pupil calibrator comprises a sliding assembly and a calibration assembly, and the liquid medicine squeezer is provided with a squeezing support, a magnetic suction clamping nozzle, a manual squeezing arm and a linked eyelid supporting structure. By matching with components such as clamping teeth and a damping spring, a series of problems that the hand is easy to shake, the instillation position is inaccurate, liquid medicine is wasted, a bottle opening of a medicine bottle is easy to touch eyes to cause secondary injury, eyelids shield conjunctival sacs, the adaptability and universality of the device are poor, the extrusion force is non-uniform, the supporting is uncomfortable, the arm is soreness and swollen after long-term operation, the device is easy to shift and the like when the patient holds the device for instillation are solved; the effects that instillation is stable and accurate, operation is convenient, fast and safe, and different patients and medicine bottle specifications are adapted are achieved.

The utility model discloses a bondage mirror for preventing adhesion of palpebral globules, which comprises a lens body, the lens body is arranged in a transversely-arranged crescent shape, the periphery of the bottom end of the lens body is in a downwards-bent arc curved surface shape, the thickness of the bottom end of the lens body is larger than that of the top end of the lens body, and the thickness of the top end of the lens body is gradually increased from the top end of the lens body to the bottom end of the lens body. The thicker structure at the bottom end of the lens body completely expands the wrinkles in the lower conjunctival sac, the condition that the inner walls of the wrinkles of the conjunctival sac are mutually adhered is avoided, and the isolation effect of the eyelid conjunctiva and the bulbar conjunctiva is effectively improved.

Based on 3D printing technology and corneal topography assisted personalized ocular prosthesis manufacturing method, through the high polymer impression material to make the patient's eye side conjunctival sac impression, and obtain the three-dimensional data of the conjunctival sac impression of the affected eye, and establish a three-dimensional model, remove the front surface of the three-dimensional model with the pupil center as the center, and the corneal diameter data of the healthy eye as the diameter of the circular area, and integrate the pupil diameter and corneal anterior surface curvature data of the healthy eye in this area, and finally obtain the three-dimensional model of the ocular prosthesis, and the ocular prosthesis is made through 3D printing technology, because the data of the pupil diameter and corneal anterior surface curvature of the healthy eye are integrated on the front surface of the three-dimensional model of the affected eye, the ocular prosthesis is more realistic and more suitable for the affected eye.

This invention discloses a method and system for detecting pathogens in the conjunctival sac using fluorescence staining image analysis, belonging to the field of medical image processing technology. The method includes: acquiring multi-wavelength fluorescence images and performing inter-channel differential operations to construct a spectral response surface; identifying regions of abrupt curvature changes to determine candidate pathogen locations; extracting radial fluorescence intensity distribution curves; calculating attenuation gradients and transition band width matching rules to determine pathogen types; acquiring temporal fluorescence intensity; screening locations where the intensity change rate exceeds an activity threshold as active pathogen locations; identifying the diffusion axis based on spatial distribution; calculating the spatial density gradient based on statistical density changes; coupling the intensity change rate to calculate the diffusion rate and determine the warning region; identifying abnormal pixels within the warning region; verifying continuous growth characteristics through temporal tracking; confirming and marking early infection areas. This invention improves detection accuracy and timeliness, enabling early warning.

The utility model relates to the field of ophthalmology treatment devices, and provides an improved conjunctival sac drainage and suction device which comprises a first heavy hammer, a first hook body connected to the first heavy hammer, a metal pipe arranged on the first heavy hammer and / or the first hook body, a hose connected to the metal pipe and a water suction device connected with the hose. A second drainage channel is arranged in the hose, the first drainage channel is communicated with the second drainage channel, and the water absorber can generate adsorption force to suck water into the first drainage channel and the second drainage channel. The front end of the first hook body is hooked on the outer side of the conjunctival sac of a patient, the tail end of the hose is connected with the needle cylinder, when a surgeon flushes water in an operation, an assistant pulls the needle cylinder to pump accumulated water at the conjunctival sac into the needle cylinder in time, the operation field is kept clear all the time, the step that the assistant wipes accumulated water in eyes with cotton swabs and gauze is omitted, and the operation efficiency is improved. The technical problems that conjunctival sac drainage in an ophthalmologic operation needs to be operated by medical staff, time and labor are wasted, and potential safety hazards exist are solved.

The utility model relates to the technical field of medical auxiliary appliances, in particular to a conjunctival sac flushing eyelid turner which comprises a connecting cylinder and a turning cylinder, a movable groove is formed in the connecting cylinder, a turning opening is formed in the front portion of the outer surface of the connecting cylinder, and a fixed cylinder is fixedly connected to the middle of the right end of the connecting cylinder. A threaded hole is formed in the front portion of the outer surface of the fixing cylinder, a locking screw is connected into the threaded hole in a threaded mode, and a fixing block is fixedly connected to the rear portion of the outer surface of the connecting cylinder. According to the eyelid turner for flushing the conjunctival sac, on the premise that the conjunctival sac is fully exposed, discomfort of a patient can be reduced as much as possible, the flushing process is smoother, and therefore nursing quality is improved, after the conjunctival sac is exposed through the whole turner, the hands of the medical staff can be liberated, and the working efficiency is improved. And medical staff can perform other necessary operations while flushing the conjunctival sac, so that the working efficiency of the medical staff is improved.

The utility model discloses a disposable conjunctival sac flushing device which comprises a main body unit and a control unit, the main body unit comprises a medicine bottle, the medicine bottle is fixedly communicated with a bottle neck, the bottle neck is fixedly communicated with a threaded cylinder, the threaded cylinder is fixedly communicated with a guide pipe, the guide pipe is fixedly communicated with a semicircular flushing pipe, and the threaded cylinder is in threaded connection with a threaded cover. The baffle is fixed in the guide pipe, and a round hole is formed in the baffle. A medical worker holds the medicine bottle and inverts the medicine bottle, the semicircular flushing pipe and the conjunctival sac form an inclined angle, the medicine bottle is pinched to enable eyedrops in the medicine bottle to extrude the plug block, and after the plug block is moved out of the round hole, the eyedrops are discharged from the semicircular flushing pipe and the nozzle, so that the conjunctival sac of a patient can be flushed. The round hole is blocked by the plug block, eye drops cannot flow out, and medical staff can conveniently adjust the semicircular flushing pipe and the nozzle to be at a proper angle with the conjunctival sac and then flush the conjunctival sac.

The invention belongs to the technical field of medical instruments, and discloses a portable traditional Chinese medicine eye nebulization therapy device which comprises a frame and a liquid storage bottle, the frame is connected with a bandage and a nebulization drug delivery assembly, the nebulization drug delivery assembly comprises a base body, the base body is connected with a circular cover plate, a center cylinder and a nebulization pump, the circular cover plate is provided with an arc-shaped groove, the center cylinder is connected with a linkage frame, and the linkage frame is connected with the liquid storage bottle. The linkage frame is connected with four linkage shafts and an adjusting handle, the four linkage shafts are all connected with expansion bodies, the four expansion bodies are close to and / or far away from one another by rotating the adjusting handle, the atomizing pump is communicated with a spray head through a liquid guide pipe, and the spray head is arranged among the four expansion bodies. By controlling the angle of the adjusting handle relative to the base body and controlling the traction state of the expansion body to eyelids around the eyes, the opening and / or closing state of the eyes is further controlled, medicine administration is conducted when the eyes are in the stable opening state, the covering effect of medicine droplets, the conjunctival sac and the cornea surface is good, and the atomization treatment effect is good.

The invention discloses portable flushing equipment for ophthalmology treatment, and relates to the technical field of ophthalmology medical equipment, the portable flushing equipment comprises a flushing assembly, the flushing assembly comprises a supporting tube, a connecting tube is fixed to one side of the supporting tube, a collecting tank is fixed to the top end of the connecting tube, and a flusher is arranged in the collecting tank; the auxiliary assembly is arranged in the collecting tank and comprises a positioning part, the positioning part comprises a positioning frame located above the flusher, an arc-shaped plate is arranged in the positioning frame, a protective pad is fixed to the top of the arc-shaped plate, and a telescopic rod is fixed to one side of the arc-shaped plate. The flushing device has the beneficial effects that through auxiliary arrangement, when the eyes of a patient are close to the flushing device, the eyes of the patient can be automatically pulled open, manual traction is not needed, flushing operation can be completed by a single person, and the diagnosis and treatment efficiency is greatly improved; deep areas such as the conjunctival sac can be fully exposed, flushing blind areas are eliminated, and cleaning and treatment effects are guaranteed.

The utility model discloses a disposable conjunctival sac flusher which comprises a flushing pipe, a bottle cap puncture portion is arranged at one end of the flushing pipe, a flushing portion is arranged at the other end of the flushing pipe, a drip chamber is arranged in the middle of the flushing pipe, and an exhaust portion is arranged on the flushing pipe on one side of the bottle cap puncture portion. A hook is fixedly arranged on the portion, between the drip chamber and the flushing portion, of the flushing pipe, a Robert clamp is fixedly arranged on the portion, between the hook and the flushing portion, of the flushing pipe, and a plug cap is arranged on the flushing portion. According to the disposable conjunctival sac flusher, the operation time and the article preparation time can be shortened, and the infection risk of a patient caused by pollution can be reduced.

The invention relates to a conjunctival sac supporting piece which comprises a light-permeable supporting piece body, the supporting piece body is provided with an outer surface and an inner surface which are opposite, a plurality of first drainage holes are formed in the supporting piece body, and the first drainage holes penetrate through the supporting piece body in the thickness direction. The first drainage hole is formed in the edge area of the supporting sheet body, the first drainage hole has a stronger drainage function and can be used as a suture line for fixation, a doctor can carry out a suture operation, the supporting sheet is fixed in the conjunctival sac, and accidental falling is prevented.

The deformable amniotic membrane endoscope device of the present invention includes an amniotic membrane and a deformable amniotic membrane support device. The deformable amniotic membrane support device includes a C-shaped open ring and a solid annular cylinder nested together. The C-shaped open ring is a ring with a C-shaped cross-section, and the opening of the C-shaped structure faces inward. The solid annular cylinder is also an annular structure. The amniotic membrane, after being stripped of its chorionic villi and flattened, is inserted into the C-shaped open ring. The annular cylinder supports the amniotic membrane, pressing it into the groove of the C-shaped open ring. The periphery of the amniotic membrane is trimmed, leaving a certain width of free amniotic membrane tissue around the opening of the C-shaped open ring, thus forming the amniotic membrane endoscope. The beneficial effect of this invention is that the nickel-titanium shape memory alloy has a 37% [unclear meaning - possibly referring to a specific feature or characteristic] in the human body. 0 The amniotic membrane does not deform, allowing it to completely cover the entire conjunctival and corneal surface according to the anatomy of the conjunctival sac. This achieves full coverage of the entire ocular surface without any blind spots, preventing or reducing further adhesion between the eyelid and the eyeball.