66 results about "Capsular bag" patented technology

The invention relates to supplementary intraocular device for implantation into the capsular bag of an eye in addition to a primary intraocular lens, the supplementary intraocular device comprising a body (1), wherein the body (1) is opaque at least for visible light, and wherein the body (1) has a pinhole (2) being placed in a central area (3) of the body (1). The invention further relates to an arrangement.

The invention discloses a lens anterior-posterior capsule polisher, which is characterized in that a cleaning part is communicated with a pipeline part to form an integrated instrument. One part of the surface of the cleaning part is provided with a frosted part, and the other part of the surface is provided with a plurality of through holes. The frosted part can polish the anterior lens capsule by utilizing friction force, residual lens cortex and epithelial cells are removed, the postoperative lens capsular bag contraction probability is reduced, and the stability of the intraocular lens and the postoperative vision durability are enhanced. The through hole is matched with the pipeline part, and when the free end of the pipeline part is connected with intraocular perfusate, the perfusate can be sprayed through the through hole in multiple angles and multiple directions to wash and polish the posterior capsule. Compared with a bald needle head used in an existing water polishing technology, the polisher is wider and more uniform in flushing, operation safety can be effectively improved, postoperative vision and visual quality are improved, and the occurrence rate of posterior cataract is reduced. By means of the design, front and rear capsule membranes are polished through a single instrument, frequent instrument replacement in an operation is avoided, operation steps are simplified, and the operation effect and safety are improved.

An accommodating intraocular lens (AIOL) for implantation within a capsular bag of a patient's eye comprises first and second components coupled together to define an inner fluid chamber and an outer fluid reservoir. The inner region of the AIOL provides optical power with one or more of the shaped fluid within the inner fluid chamber or the shape of the first or second com- ponents. The fluid reservoir comprises a bellows region with fold(s) extending circumferentially around an optical axis of the eye. The bellows engages the lens capsule, and a compliant fold region between inner and outer bellows portions allows the profile of the AIOL to deflect when the eye accommodates for near vision. Fluid transfers between the inner fluid chamber and the outer fluid reservoir to provide optical power changes. A third lens component coupled to the first or second component provides additional op - tical power.

This invention discloses an annular capsular bag for an intraocular lens (IOL), comprising a capsular body with a mitigation structure and a heparin coating. An IOL is implanted within this capsular body, and the IOL has a strip-shaped cap made of acrylic ester around its periphery. This invention uses the mitigation structure to block epithelial cells, preventing them from migrating towards the center of the IOL via the anterior and posterior surfaces, thus avoiding opacity in the central portion of the IOL and preventing vision loss, i.e., preventing secondary cataracts. Furthermore, the strip-shaped cap on the periphery of the IOL eliminates the need for additional fixation structures, simplifying the structure, reducing surgical steps, and accelerating the surgical process. Additionally, the heparin coating on the inner surface of the capsular body reduces the adhesion of the epithelial cells at the equatorial region of the annular capsular bag to the surface of the IOL, making them less prone to adhesion and facilitating subsequent IOL replacement.

A surgical instrument for phacoemulsification procedures is disclosed. The surgical instrument may include a handpiece assembly and a cleaning member. The cleaning member may be coupled with the handpiece assembly. The cleaning member may be configured to be inserted into anterior chamber of the eye of a patient and into a capsular bag of the eye. The cleaning member may include one or more polishing elements configured to detach material from the capsular bag.

The invention relates to a method for controlling an ophthalmic surgical microscope (2) with an OCT device (3), the method having the following steps: • carrying out a first OCT scan (30), wherein the first OCT scan is carried out such that only a part of a phakic intraocular lens (26) implanted in the patient's eye (11) and only a part of an anterior capsular bag wall (19) of the patient's eye are captured in the first OCT scan (30), • determining a first absolute value (B1) of a first geometric parameter in the first OCT scan (30) by means of an image processing device (5), • carrying out a second OCT scan (33), wherein the second OCT scan is carried out such that only a part of a cornea (13) or sclera (21) and only a part of the iris (14) adjacent thereto are captured in the second OCT scan (33), • determining a second absolute value (B2) of a second geometric parameter in the second OCT scan (33) by means of the image processing device (5), • forming a first result (E1) by performing a mathematical operation on the first absolute value (B1) and a predetermined first base value (BA1) and forming a second result (E2) by performing a mathematical operation on the second absolute value (B2) and a predetermined second base value (BA2), wherein the first result (E1) and the second result (E2) are calculated by means of a calculation device (6), • outputting an output on the basis of the first result (E1) and the second result (E2) by means of an output device (7).

The utility model discloses an improved capsular bag tension section which comprises a main body ring, the whole main body ring is in an arc shape, the span of a main body is 120 degrees, clamping positioning holes are formed in the two ends of the main body ring, the main body ring and the clamping positioning holes are connected in a smooth transition mode, and a sclera fixing hook is arranged on the inner side of the middle of the main body ring. According to the utility model, fixed support can be realized in a small-range area of the capsular bag, permanent support can be realized through sclera suture, a plurality of capsular bag tension sections can be used in the same capsular bag when necessary, and when circumferential support is needed, the capsular bag tension sections can be combined with a capsular bag tension ring for use, so that the use is convenient. According to the utility model, 360-degree expansive force cannot be generated, the device can be used for suspension ligament fracture in a larger range, the stable capsular bag can be used before cataract ultrasonic emulsification, the tension section of the capsular bag can be implanted after a crystalline lens is sucked away, and the device is particularly suitable for children with small capsular bag diameter and incomplete dislocation of crystalline lens or small spherical crystalline lens patients.

To provide an ophthalmic device for drug delivery.SOLUTION: An ophthalmic implant for drug delivery is provided. The implant includes a primary intracapsular device coupled to a secondary device. When implanted in a patient's eye, the primary intracapsular device is held in place by the patient's capsular bag, and the secondary device is held in place by the primary intracapsular device. The implant may be inserted in the eye by injecting the primary intracapsular device into the eye either before or after attaching the secondary device to the primary intracapsular device, and subsequently positions the joined secondary device and primary intracapsular device with the primary intracapsular device held in place by the patient's capsular bag and with the secondary device held in place by the primary intracapsular device. The secondary device may be designed to hold a tertiary device that can be implanted and attached at the time of surgery or anytime postoperatively.SELECTED DRAWING: Figure 1

Described herein are devices and methods for creating a capsulorhexis. In some embodiments, the device includes a template with a tearing profile, which, when placed against the capsular bag, defines a perimeter of a capsulorhexis. In some embodiments, the device further includes rigid sections and bendable sections which are configured to transition the template between a first bent configuration for insertion through a corneal incision and a second unbent configuration for creation of the capsulorhexis. In some embodiments, the device further includes connecting elements which enter through the corneal incision and, when manipulated, transition the device between the first bent configuration and the second unbent configuration. In some embodiments, the connectors are configured to impart a downward force on the template and thus the capsular bag during the capsulorhexis creation.

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

A system for performing ophthalmic treatment includes a surgical microscope configured to capture a surface image of an eye of a patient; and an imaging device mounted on the surgical microscope and configured to capture a tomographic image of an eye of a patient. A controller is coupled with the surgical microscope and the imaging device, the controller configured to receive the surface image and the tomographic image and to provide feedback based on the tomographic image and the surface image to facilitate an ophthalmic treatment. Feedback may involve avoiding capsular bag rupture during phacoemulsification, safely performing retinal membrane dissection, IOL implantation, treating glaucoma, or performing other ophthalmic treatments.

The invention discloses a capsular bag fusion cage which comprises a porous capsular bag main body, an implantation sheathing canal for auxiliary installation, and a connecting tube and an injection tube which are used for injecting filler, the porous capsular bag body is compressed and folded into a slender cylinder in a natural state, the porous capsular bag body comprises a telescopic woven sleeve, the porous capsular bag body is integrally woven and formed through arrangement of the porous capsular bag body, the porous capsular bag body can be folded, minimally invasive use is facilitated, the porous capsular bag body is in the slender cylinder shape before implantation, and the implantation sheathing canal assists in being implanted into the intervertebral space; then a connecting channel is constructed through a connecting pipe, and then filler is discharged into the porous bag main body through an injection pipe, so that the porous bag main body is expanded according to a certain preset form, the goodness of fit between the porous bag main body and the intervertebral space is improved, meanwhile, operative wounds are greatly reduced, the hospitalization time is shortened, and rehabilitation of a patient is accelerated; and the use efficiency of the capsular bag fusion cage is improved.

The application discloses a light treatment equipment for after-cataract, and belongs to the technical field of medical devices. The light treatment equipment adjusts the emission direction of treatment light by using a light guide module to make the treatment light project to an intraocular target area. The light shaping module is used to shape the emission spot of the treatment light to match the annular anatomical structure of the equatorial part of the lens capsule bag. During the cataract intraocular lens implantation surgery, the light treatment equipment emits treatment light to precisely irradiate the intraocular target area, thereby inducing the apoptosis of epithelial cells in the anterior subcapsular area and the equatorial area of the lens in the intraocular target area. The light treatment equipment does not cause damage to the surrounding tissue structure, can greatly reduce complications, and can effectively prevent and effectively and precisely treat after-cataract.

1. Name of the product in this design: Post-pacemaker implantation pocket pressure fixation device. 2. Purpose of this design: For use as a pressure fixation device for the pocket after pacemaker implantation. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key features: the front view. 5. This design is for a thin product, therefore the left view, right view, top view, and bottom view are omitted.

An intraocular onlay includes a body with an optic portion and feet, the optic portion includes an anterior surface and a posterior surface, an annular mask of a selected optical opacity forming a pinhole, and a second optically transparent region exterior to the annular mask, where the feet extend from optic portion to be positioned within a capsular bag and rest on top of an existing intraocular lens that is located in the capsular bag.

The present application provides a method for in vitro purified corneal limbal stem cells to be transdifferentiated into lens spherules, specifically, the present application inoculates corneal limbal stem cells onto a culture plate containing a Matrigel glue layer, and cultures the corneal limbal stem cells in a culture system containing Y-27632 additives in LSCM culture solution, so that lens spherule organoids can be obtained. The method of the present application can realize the rapid transdifferentiation of corneal limbal stem cells into lens spherules, so that they can be implanted into the capsular bag as seed cells for in situ regeneration of the lens.

The invention relates to an injector (1) having an IOL (30), a liquid (31), and a distal injector component (2) which has a component storage state and comprises a housing (10) in which the IOL and the liquid are situated in the component storage state, said housing forming an injector tip (4), via which the IOL is to be inserted into the capsular bag of an eye in an insertion direction (20), and delimiting a proximal opening (5); a closure (6) which, in the component storage state, closes the injector tip such that the liquid cannot exit the housing via the injector tip; and a cover (7) which, in the component storage state, closes the proximal opening such that the liquid cannot exit the housing via the proximal opening. The injector also has a proximal injector component (3), having a plunger (14) which is longitudinally movably mounted in the proximal injector component, said injector having a use state in which the closure does not close the injector tip, the cover does not close the proximal opening, the proximal injector component is detachably coupled to the distal injector component, and the plunger is designed to be inserted into the housing via the proximal opening and to move the IOL out of the injector via the injector tip.

This disclosure relates to thermal fluid emulsification systems and methods for cataract removal. The thermal fluid emulsification systems can deliver heated fluid to the crystalline lens within the capsular bag of the eye, resulting in the emulsification of the crystalline lens. The emulsified crystalline lens can be aspirated from the capsular bag of the eye. The thermal fluid emulsification systems can include tips configured to localize heat to avoid unintentional damage to other ocular components and cellular structures of the eye.

Presently disclosed is an accommodative lens system which comprises an intraocular lens with fast and precise response to the near triad. The system, with the help of sensor(s) and a processor, bilaterally measures the activarion of medial rectus, ciliary and pupil sphincter muscles and thus identifies the near triad, generating data to control the lens. In at least an embodiment, different accommodative powers can be added to the different sides of the lens, maintaining the integrity of the capsular bag which is known to be harmed with the prevailing technique known in the art.

The invention belongs to the technical field of medical instruments, and particularly discloses an anti-falling and angle-adjustable drainage tube which comprises a second linear section, a bent section, an angle adjusting assembly, an inhaul cable, an anti-falling bag and a pipeline, the tail end of the bent section extends to be provided with a first linear section, and the angle adjusting assembly is arranged on the outer side of the second linear section; one end of the inhaul cable is connected with the inner wall of the bent section, the other end of the inhaul cable penetrates through the second linear section to be connected with the angle adjusting assembly, and the angle adjusting assembly adjusts the length of the inhaul cable in the drainage tube and changes the angle of the bent section. An anti-falling bag is arranged on the outer side of the drainage tube and communicated with the pipeline, the anti-falling bag is in a contraction state when implanted, gas or liquid is introduced to expand after the angle of the bent section is adjusted, and therefore axial movement of the drainage tube is limited. The drainage tube adapts to anatomical structures of different patients and has the anti-falling function, and the safety and stability of the drainage tube are improved.

A system (20) includes a radiation source (48) and a controller (44). The controller is configured to define a treatment zone (88) on a capsular bag (86) of an eye (25) of a subject (22), and to form an opening (96) in the capsular bag by irradiating a plurality of target site regions (94) within the treatment zone in an iterative process after the treatment zone is defined, the iterative process including, during each of a plurality of iterations of the process, acquiring an image (98) of at least a portion of the capsular bag, designating one of the target site regions based on the acquired image, and causing the radiation source to irradiate the designated target site region. Other embodiments are also described.

This disclosure relates to thermal fluid emulsification systems and methods for cataract removal. The thermal fluid emulsification systems can deliver heated fluid to the crystalline lens within the capsular bag of the eye, resulting in the emulsification of the crystalline lens. The emulsified crystalline lens can be aspirated from the capsular bag of the eye. The thermal fluid emulsification systems can include tips configured to localize heat to avoid unintentional damage to other ocular components and cellular structures of the eye.

The invention is suitable for the technical field of geotechnical engineering investigation, and provides a clamping-free water coupling rock core sound wave velocity testing device and method.The device comprises a left sleeve, a right sleeve and a bag, and the left sleeve and the right sleeve are detachably connected; the left sleeve is a cylindrical barrel, and a first groove which extends in the axial direction and is not through is formed in the end of the left sleeve. A second groove which extends in the radial direction and is not through is formed in the side wall of the left sleeve, and a third groove which extends in the radial direction and is through is formed in the center of the bottom of the second groove; the right sleeve is a cylindrical barrel, a non-through fifth groove communicated with the first groove is formed in the end of the right sleeve, and a through sixth groove is formed in the bottom of the fifth groove; the bag is an elastic bag body with an opening in one end, and the opening of the bag is connected with the edge of the sixth groove in a sealed mode, the influence of a non-rock-core part in a sound wave propagation path on testing is eliminated, and the testing accuracy and universality are improved.

The invention relates to an injector (1) for inserting an intraocular lens (20) into the capsular bag of an eye, comprising a cartridge (2) and a drive (10) which have a decoupled state, in which the cartridge and the drive are separate from each other, and a coupled state, in which the cartridge and the drive are coupled to each other, and having an insertion direction (9) in which the intraocular lens can be inserted into the capsular bag. The cartridge has a cartridge housing (3), which delimits an interior (4) of the cartridge in the radial direction (17) in relation to the insertion direction, a cartridge plunger (5), which delimits the interior opposite the insertion direction, a cartridge axial bearing (6), by means of which the cartridge plunger is movably mounted in the longitudinal direction, and a barrier (8), which is designed to block, in the coupled state, the flow of a fluid from the interior (4) into the drive (10) and / or vice versa. The drive (10) has a drive plunger (11), which is movably mounted in the longitudinal direction in the drive and is designed to move the cartridge plunger in the insertion direction in the coupled state in that the drive plunger contacts the cartridge plunger and thus moves same directly or via the barrier or via a fixed component, and the cartridge plunger is designed to move the intraocular lens out of the interior and out of the injector.

The invention discloses a postoperative lens capsular bag parameter prediction method, system, medium and equipment, and belongs to the field of biomedicines.The method comprises the steps that pre-operative anterior segment OCT images are obtained, and lens contour line parameters corresponding to multiple two-dimensional lens images with different axial angles in the anterior segment OCT images are extracted; according to each crystalline lens contour line parameter, constructing a crystalline lens three-dimensional model; performing three-dimensional Delaunay triangulation on the crystalline lens three-dimensional model to obtain each tetrahedral mesh; calculating the surface area of the crystalline lens three-dimensional model according to the area of the exposed triangular patch of each tetrahedral mesh; and taking half of the surface area as the posterior capsular membrane area of the postoperative crystalline lens, and calculating and outputting the simulated diameter of the capsular bag of the postoperative crystalline lens. Therefore, by implementing the method, the problem that the postoperative lens capsular bag diameter cannot be simply and effectively predicted and calculated in the prior art can be solved.

An ophthalmic surgical instrument (10, 10A, 10B, 10C, 10D) for use in a phacoemulsification and / or an irrigation and aspiration procedure includes an enlarged emulsification tip (20, 20A, 20B, 200, 20D) for improved capsular bag safety and enhanced efficiency. In one form, the enlarged tip (20, 200) has a pair of opposing convexly curved side walls (22, 220, 26, 260) and a flat bottom wall (28, 280) extending between the convexly curved side walls (22, 220, 26, 260). In another form, the tip (20A) has a convexly 2024 / 064849 curved top wall (24A) defining a first radius of curvature (r1) , an opposing flat bottom wall (28A) located between two convexly curved side walls (22A, 26A) defining a second radius of curvature (r2). In another form, the tip (20B, 20D) has a convexly curved top surface (40B, 40D) connecting to a needle shaft portion (14B, 14D) and an annular flat end face (SOD).

The invention relates to an artificial lens capsular bag which is provided with a body and a strip rope fixing loop connected to the periphery of the body, the body is a tire-like structural body and is provided with a front wall, a rear wall and an edge, a body front opening is formed in the center of the front wall, a body rear opening is formed in the center of the rear wall, the front wall and the rear wall are connected with the edge of the body respectively, and a gap is formed between the front wall and the rear wall. The front wall and the rear wall are both composed of spokes, gaps are formed between the spokes on the same wall for liquid circulation, the spokes are transparent or opaque, and the spokes on the front wall and the rear wall and the gaps are arranged in a staggered mode when the spokes are opaque. By adopting the latticed tire-like structure with the strip rope fixing loop, the traction loop is fixed between sclera layers, so that the traction loop is convenient to guide and small in wound, and dislocation and deflection are not easily caused after an operation; the latticed structure is light, the anterior chamber and the posterior chamber are smoothly communicated, and the artificial lens is convenient to implant, stable to fix and wide in selection range.

The invention relates to an artificial capsular bag for housing an intraocular lens (IOL) implant in aphakic eyes. The capsular bag features a discoid element with an internal space designed to receive the IOL. This element comprises an anterior surface with a central opening for IOL access, a posterior surface with multiple holes for viscoelastic fluid drainage, and a peripheral wall connecting these surfaces. Supporting elements are symmetrically positioned along the peripheral wall to secure the capsular bag within the eye chamber.

The invention discloses a shield tunnel capsular bag type synchronous grouting method which comprises the following steps that S1, a shield tunneling machine splices an annular pipe piece in a soil layer, the side wall of the pipe piece is provided with a plurality of grouting holes, the outer wall of the pipe piece is provided with a capsular bag in advance, the grouting holes comprise an inner hole and an outer hole, the inner hole is formed in an inner cavity of an inner pipe, the outer hole is formed in the space between the inner pipe and the outer pipe, and the outer hole is communicated with the inner pipe; the bag comprises a first bag body and a second bag body; and S2, grout is injected into the multiple first bag bodies through outer holes of the multiple grouting holes, the expanded bags extrude the soil layer and the pipe piece, all the grouting holes are closed, in this way, the grout is injected into all the first bag bodies to fill an annular gap between the soil layer and the pipe piece, and any two adjacent expanded bags in the circumferential direction extrude each other. The bag forms a physical barrier, grout is strictly limited in the gap between the duct piece and the soil layer, after primary grouting is completed, secondary supplementary grouting can be conducted on a detected cavity area, it is ensured that filling is full and uniform, and the cavity area is obviously reduced.

To provide an intraocular drug delivery platform for use with an intraocular lens assembly.SOLUTION: There is provided an intraocular drug delivery platform for use with an intraocular lens assembly. The platform includes a ring, haptics to maintain the ring in position in the capsular bag, compartments on the anterior surface of the ring for accommodating a drug-eluting matrix or other drug mass, and a skirt extending posteriorly from the posterior surface of the ring to constrain movement, including lateral or inferior / superior movement, of the intraocular lens relative to the ring.SELECTED DRAWING: Figure 3