7 results about "Intraocular surgery" patented technology

To provide a corner angle protector capable of preventing foreign matter from flowing into a corner angle during intraocular surgery, and a method for manufacturing the same.SOLUTION: The corner angle protector 1 includes a C-shaped member 2 that is placed at a corner angle through an incision site of an eyeball and is deformable in accordance with a shape of the corner angle in a state where the C-shaped member 2 is placed at the corner angle, and a thread 3 that is connected to one of opposing end portions of the C-shaped member 2 and can be pulled by a user to pull out the C-shaped member 2 placed at the corner angle from the incision site. The end of the C-shaped member 2 to which the thread 3 is connected is formed into a conical shape with a rounded apex.SELECTED DRAWING: Figure 1

Device surfaces are rendered superhydrophobic and / or superoleophobic through microstructures and / or nanostructures that utilize the same base material(s) as the device itself without the need for coatings made from different materials or substances. A medical device includes a portion made from a base material having a surface adapted for contact with biological material, and wherein the surface is modified to become superhydrophobic, superoleophobic, or both, using only the base material, excluding non-material coatings. The surface may be modified using a subtractive process, an additive process, or a combination thereof. The product of the process may form part of an implantable device or a medical instrument, including a medical device or instrument associated with an intraocular procedure. The surface may be modified to include micrometer- or nanometer-sized pillars, posts, pits or cavitations; hierarchical structures having asperities; or posts / pillars with caps having dimensions greater than the diameters of the posts or pillars.

The invention relates to a corneo-capsular protection system (CCPS), which is an ophthalmological device designed to simultaneously protect the corneal endothelium and the posterior capsule during intraocular surgery (phacoemulsification), the system comprising a corneal protection dome (CPD) and a capsular protection floor (CPF). The dome is a foldable, transparent lens that protects the endothelium against mechanical and thermal damage while optionally providing a magnifying effect to improve surgical visibility. The floor is a foldable lens designed to protect the posterior capsule from perforations and trauma. It has a central condensation facilitating its safe removal, and can also provide protection to the macula against prolonged exposure to light. The two components are designed for easy insertion and removal through micro-incisions, thereby reducing the risk of postoperative complications, and have a complete, potentiated protective effect if used in combination.

The utility model discloses a pupil dilation system which comprises a pupil dilator and an implanter, the pupil dilator is of an annular structure, the pupil dilator is delivered into an eye through the implanter, the circumferential end angle of the pupil dilator can capture iris tissue in the eye, an iris opening is expanded, then the pupil is dilated, and a better operation space is provided for an intraocular operation. The circumferential end corner of the pupil dilator is a clamping part with a clamping opening, the maximum vertical height of the clamping opening is 0.3-0.8 mm, and the height size of the clamping opening is larger, so that the pupil dilator can be separated from iris tissue more easily when taken out, and the taking-out difficulty of the pupil dilator is reduced.

A surgical system includes: (1) an imaging device configured to acquire imaging data of a surgical site; (2) a surgical manipulator configured to hold a surgical tool; and (3) a controller connected to the imaging device and the surgical manipulator, wherein the controller is configured to receive the imaging data from the imaging device and derive, from the imaging data, an insertion trajectory for the surgical tool through an incision at the surgical site.

The application provides an application of alpha-ketoglutaric acid in improving corneal endothelial injury and dysfunction, and belongs to the technical field of biological medicine. The application finds that, as a key metabolic intermediate in the tricarboxylic acid cycle, alpha-ketoglutaric acid can significantly reduce corneal endothelial cell injury and dysfunction induced by various causes such as high glucose, genetic defects, high intraocular pressure and surgical trauma by improving mitochondrial energy metabolism, reducing oxidative stress, stabilizing mitochondrial structure and membrane potential. Experiments prove that alpha-ketoglutaric acid can be used in the form of local administration such as eye drops, anterior chamber perfusion, systemic oral administration or combined administration, effectively reduces corneal edema, reduces central corneal thickness, shortens the recovery time of corneal transparency, and has a clear protection and repair effect on diabetic-related corneal endothelial lesions, Fuchs corneal endothelial dystrophy, glaucoma high intraocular pressure injury and intraocular surgery-related endothelial injury.

A surgical clamp for aligning the margins of incised or wounded tissue has jaws with parallel clamping faces, and a handle for manipulating the clamp to align the margins of the tissue. The jaws are in a normally closed position, however they can be opened by compressing the handle to open the jaws. Prongs project from the inferior surface of the jaws. The clamp is positioned in a desired position over the margins of a wound to be closed, the prongs engage the margins of the wound to be aligned, and the jaws are closed by releasing compressive force on the handle. As the jaws close the prongs help move the tissue into alignment. Suture guide slots through the jaws assist in the placement of precisely placed sutures across the incision. The disclosed surgical clamp is particularly suited for selectively closing and reopening surgical incisions, such as a sclerotomy incision in the eye. Methods are disclosed for using the clamp during intraocular and other surgical or minimally invasive procedures. In one example the clamp is used during implantation into the retina of a scaffold on which choroid and retinal pigment epithelium cells and retina grow in a three-dimensional matrix that mimics the native structure of the retina.