Abstract: Disclosed herein are methods, compositions and tools for repairing articular surfaces repair materials and for repairing an articular surface. The articular surface repairs are customizable or highly selectable by patient and geared toward providing optimal fit and function. The surgical tools are designed to be customizable or highly selectable by patient to increase the speed, accuracy and simplicity of performing total or partial arthroplasty.

Abstract: The present invention relates generally to implants and tools for the fixation or fusion of joints or bone segments. These tools include tissue dilators and protectors. Other tools include broaches used to shape bores in bone. The tools can also include a system for removing an implant from bone. Implants can include assemblies of one or more implant structures that make possible the achievement of diverse interventions involving the fusion and/or stabilization of lumbar and sacral vertebra in a non-invasive manner, with minimal incision, and without the necessitating the removing the intervertebral disc. Implants for fusing both sacroiliac joints of a patient include a long implant that extends across both sacroiliac joints.

Abstract: An implantable prosthesis component for a joint prosthesis includes a flexible wall, a proximal side comprising a rigid portion for connecting to a first bone at a joint; and a distal side comprising a rigid portion for connecting to a second bone at the joint. The flexible wall has an inverted spherical shape and defines an inner cavity of the implantable prosthesis component. The inner cavity is filled with a fluid. The flexible wall is deformable such that relative movement between the first and second bone causes deformation of the implantable prosthesis component.

Abstract: A bearing for a total or partial joint replacement prosthesis: the bearing having a body and a reinforcing element which strengthens the bearing and which forms an attachment member, and/or the bearing being formed at least partially from polymeric or composite material the bearing comprising a lower modulus portion and a higher modulus portion, one portion of the bearing being at least partially encased by the other portion of the bearing. Also provided is a method for of forming the bearing, and a total or partial joint replacement prosthesis comprising the hearing.

Abstract: An artificial knee joint includes a femoral component (1) and a tibial component (2). The femoral component (1) includes an intercondylar box (11). A cam (12) is provided on posterior of the intercondylar box (11). The tibial component (2) includes a medial condyle bearing surface (21) and a lateral condyle bearing surface (22) arranged on right and left side respectively. A post (23) is provided between the medial condyle bearing surface (21) and the lateral condyle bearing surface (22). The post (23) is adapted to the intercondylar box (11). The post (23) has a first arc surface (231) on the lateral side of posterior surface. The post (23) has a second arc surface (232) on the posterior surface and on the medial side of the first arc surface (231). A third arc surface (121) and a forth surface (122), cooperating with the first arc surface (231) and the second arc surface (232), are provided on the cam (12) accordingly.

Abstract: An internal joint cavity expander includes femur-side magnets, tibia-side magnets, and magnetic shield-members. Each femur-side magnet has a plate curved into an arc and fixed to a femur. Each tibia-side magnet has length smaller than the femur-side magnet length and having a plate curved into arc concentric with the femur-side magnet arc. Each tibia-side magnet is fixed to a tibia. The pole on the convex surface of each femur-side magnet is same as the pole on the concave surface corresponding tibia-side magnet. The convex surface of each femur-side magnet faces the concave surface of corresponding tibia-side magnet. Each magnetic shield-member covers the surface of corresponding femur-side magnet and tibia-side magnet facing the skin throughout range in which the femur-side magnet moves relative to the tibia-side magnet. Each magnetic shield-member prevents magnetism of corresponding magnets and from leaking outside without hindering the femur-side magnet movement relative to the tibia-side magnet.

Abstract: Disclosed herein are methods and devices for repairing articular surfaces in a knee joint. The articular surface repairs are customizable or highly selectable for each patient and geared toward providing optimal fit and function. Kits are also provided to enable customized repairs to be performed.

Abstract: An artificial knee joint includes a femoral component (11), provided with a medial condyle (13), a lateral condyle (14) and a front flange (50). The medial condyle (13) and the lateral condyle (14) are joined together in proximity with the rear end of the intercondyle groove (19) by a femoral cam (17), and separated by the intercondyle groove (19) in the remaining part of their extension. A tibial component includes a tibial plate and a tibial insert (12). The tibial insert (12) is configured to support the medial condyle (13), and the lateral condyle (14), and is provided with a tibial post (18). The femoral cam (17) is asymmetrical and comprises a distal surface (20) shaped like a drum which articulates with the tibial post (18).

Abstract: An implant is disclosed including first and second blade portions comprising a plurality of serrated edges and an engagement portion connecting first and second blade portions, wherein the first and second blade portions are aligned along a common axis extending away from the engagement portion and both the first and second blade portions have a taper terminating at a point. In some embodiments, engagement portion is formed from a flexible or semi-flexible material.

Abstract: A method of performing percutaneous interbody spinal fusion on adjacent vertebrae in a patient including the steps of: creating a percutaneous access opening on the patient, using indirect visualization to establish a surgical path through the access opening via neural monitoring, creating a cavity in a disc space between the adjacent vertebra, without retraction, evaluating the created cavity, inserting a container sized and configured to fit through the access opening into the cavity and filling the container with fill material.

Abstract: The present application relates to a facet joint prosthesis comprising a first component having a first disc with a first outer face for engagement of a first bone. The first outer face has an opposed first inner face, which includes a first post connecting said first disc to a tongue. The facet joint prosthesis further comprises a second component having a second disc with a second outer surface for engagement with a second bone. The second outer surface has an opposed second inner face, which comprises a bridge located near the periphery of said second disc. Said bridge connects the second disc with a third disc. The third disc comprises a pocket. Insertion of said tongue into said pocket and rotation of said tongue relative to said pocket results in a locking of said tongue between said second disc and said third disc.

Abstract: Superior and/or inferior facets of one or more facet joints may be replaced by superior and/or inferior facet joint prostheses. In one embodiment, a kit of superior or inferior prostheses is provided, in which the prostheses have at least two dimensions that vary among members of the kit independently of each other. Each prosthesis may have a bone engaging surface having a surface that is polyaxially rotatable against a corresponding resection of a vertebra. Each prosthesis may also have an articulating surface shaped such that, after attachment to the spine, the replaced or partially replaced facet joints provide a larger medial-lateral range of motion when the spine is flexed than when the spine is extended. Crosslinks may be used to connect left and right prosthesis together in such a manner that they are stabilized in a position in which they are seated directly against the vertebra.

Abstract: A spinal implant includes an implant body including a first endplate and a second endplate. A plurality of electrodes include at least one electrode disposed with the first endplate and at least one electrode disposed with the second endplate such that the electrodes conduct an electric current to stimulate tissue growth adjacent the implant body. Systems, surgical instruments and methods are disclosed.

Abstract: A system and method for spinal fusion comprising a spinal fusion implant of non-bone construction releasably coupled to an insertion instrument dimensioned to introduce the spinal fusion implant into any of a variety of spinal target sites.

Abstract: Devices and methods for treating one or more damaged, diseased, or traumatized portions of the spine, including intervertebral discs, to reduce or eliminate associated back pain. In one or more embodiments, the present invention relates to an expandable interbody spacer. The expandable interbody spacer may comprise a first jointed arm comprising a plurality of links pivotally coupled end to end. The expandable interbody spacer further may comprise a second jointed arm comprising a plurality of links pivotally coupled end to end. The first jointed arm and the second jointed arm may be interconnected at a proximal end of the expandable interbody spacer. The first jointed arm and the second jointed arm may be interconnected at a distal end of the expandable interbody spacer.

Abstract: Expandable implants for engagement between vertebrae generally include an inner member, outer member, and gear member positioned coaxial with respect to each other such that the inner and outer members are moveable relative to each other along an axis. The gear member is axially fixed to the outer member and freely rotatable with respect to the outer member and the gear member threadedly engages a threaded portion of the inner member to translate inner member along the axis. The implant is configured to engage the vertebrae in a predetermined alignment and the gear member includes gear teeth exposed to the exterior and configured to be accessible by a tool member at a plurality of angular positions around the perimeter of the implant device.

Abstract: A digit for a prosthetic hand is provided. The digit has a base member (12) attachable to the hand and at least one digit member (18) pivotably connected to the base member. The at least one digit member (18) has a digit tip (22) remote from the base member (12), and the digit member is at least partially covered with at least one conductive substance (26,40) which defines a conductive path which leads from the digit tip towards the base member. A method of manufacturing such a digit is also provided.

Abstract: The present invention is a switchable gripping terminal device that can be switched from a voluntary open prehension mode to a voluntary closed prehension mode, at will by the user. In an embodiment of the present invention, the terminal device may comprise a movable digit attached to a fixed digit, whereby the user can actuate the movable digit, such that the movable digit rotates relative to the fixed digit. The terminal device may comprise a lever, which enables the user to switch from a first mode, voluntary open (VO), to a second mode, voluntary closed (VC). This switchable biasing means, allows the user to decide the prehension mode, and easily switch the mode at will, according to the circumstances.

Abstract: Disclosed are systems and methods for controlling walking of a wearable robot, which provide walking assistive power as if something were pulling the wearer of the robot from the front or pushing the wearer from the back, by applying the force of a virtual spring, whereby the wearer may comfortably walk. The systems for controlling walking of the robot include: a walking mode determination unit configured to determine whether the robot is walking; a virtual spring force calculation unit configured to calculate the force of a virtual spring of which one end is connected to the robot and the other end is connected to a target point in front of the robot based on the walking direction; and a joint driving unit configured to drive each joint of the robot using torque calculated based on the force of the virtual spring, which is calculated by the virtual spring force calculation unit.

Abstract: A non-contact capacitive sensing system for robotic lower-limb prosthesis, comprising a sensing front end, a signal sampling unit and a signal processing unit. The sensing front end is composed of capacitance electrodes inside the prosthetic socket, and the capacitance electrodes locate between the prosthetic socket and the stump sock. Each capacitance electrode forms a capacitor with the human body. The signal sampling unit is composed of the CTD module and the control module. The CTD module measures capacitance values by calculating the ratio of discharge-and-recharge cycles between the under-test capacitors and the reference capacitor. The signal processing unit comprises the filter module and the communication module. The capacitive sensing system is highly repeatable in signals, resistant to sweat, and reliably dressed on a human body. The system performs well regardless of residual limb length and residual muscle strength. It can be widely used in the field of robotic lower-limb prosthesis.

Abstract: The present embodiments relate to an endovascular treatment system comprising a sheath having a sheath lumen and a sheath aperture located on a circumferential surface of the sheath, and an internal liner disposed at least partially within the sheath lumen. The internal liner comprises a liner aperture, a protrusion, and a liner lumen, and has a delivery state and an expanded state. In the expanded state, the protrusion extends out of the sheath lumen through the sheath aperture.

Abstract: For welding a polished component of one metal to a polished prosthesis of another metal, ramp surfaces are used, to compensate for loss of precise dimensions of the two components at the surfaces that face each other at the weld interface, during the respective polishing procedures for the two metals.

Abstract: Medical devices and methods for making, preparing, and using medical devices are disclosed. An example method may include disposing an implantable medical device along an outer surface of a balloon. The implantable medical device may include a polymeric stent having a plurality of openings formed therein. The implantable medical device may be designed to shift between a compressed configuration having a compressed diameter and an expanded configuration having an expanded diameter. The method may also include compressing the implantable medical device to an intermediate diameter between the compressed diameter and the expanded diameter and applying inflation pressure to the balloon so that at least a portion of the balloon extends at least partially into at least one of the plurality of openings in the implantable medical device.

Abstract: A deployment apparatus and method for deploying one or more stents to a bifurcated vessel is provided. The invention is particularly suited for T-type bifurcated vessels where a side branch extends from a main branch. The deployment apparatus has a primary inflatable portion for engagement within the main branch and a secondary inflatable portion for engagement within the side branch. A main stent is arranged on the primary inflatable portion and radially expanded within the main branch while the secondary inflatable portion maintains registration with the side branch. A side branch stent is then arranged on the secondary inflatable portion and expanded within the side branch while the primary inflatable portion maintains registration with the expanded main stent. A bifurcated stent system suitable for bifurcated lesions is also provided comprising a side branch stent with a shaped end designed to engage a similarly shaped side opening in a main stent.

Abstract: A delivery system (114) for a self-expanding device (110) for placement in a bodily lumen, the system comprising a sheath (112) that confines the device to a radially compact delivery disposition until the device is to be released into the lumen, the system having an elongate pull element (118) to be pulled proximally from its proximal end, which pull element is arranged radially inside the sheath for pulling preferentially on a pull zone on the circumference of the distal end of the sheath, thereby to tear the sheath progressively along a tear line running the length of the sheath, starting at the distal end of the sheath, to release the device from the confining effect of the sheath, progressively, beginning at the distal end of the device and wherein the sheath is of polyethylene-terephthalate, cold drawn along its long axis, and in that the distal end of the sheath tapers inwardly to provide an inwardly tapered distal end of the system.

Abstract: A stent placement assembly is disclosed.

Abstract: Shown are a device, system and method that improve the diabetes care of a patient that has undergone gastric surgery. The device provides continuously or intermediate monitoring at various intervals before and after meals of several sensors to perceive, among other things, the blood glucose level, EKG/heart rate and volume of meals a patient has consumed. Readings are sent to a control unit that receives input from at least one of: a meal sensor, glucose monitor, and EKG sensor to control a drug delivery unit that doses a prescribed agent at a specific quantity and time based on the readings to provide proper diabetes care for the patient. Components of the system such as the meal sensor glucose monitor, EKG sensor, control unit and drug delivery device may be implanted subcutaneously in the patient or outside the patient and may communicate with each other either wirelessly or may be directly wired together.

Abstract: A spinal orthosis includes a rear panel, and first and second belt members securing to the rear panel. The first and second belt members each define a first end secured to a first side of the rear panel and a second end having a foldable portion adapted to fold over a first surface of the first and second belt members and secure to the first surface to reduce a length of the first and second belt members. First and second front closures are secured to the second ends of the first and second belt members, respectively, and arranged for removably securing to one another to form a continuously circumferential loop with the rear panel and the first and second belt members. A kit or method may be provided for sizing the belt members with a sizing device for forming a predetermined distance between the first and second belt members.

Abstract: Disclosed are devices for reducing postpartum hemorrhage, including a belt having a fastener for securing the belt around a patient's body, a bladder being inflatable with air and adapted to be placed over the patient's abdomen for applying selective external pressure to the patient's uterus, a manual pump operably connected to the bladder to change air pressure of the bladder, and a pressure gauge for indicating the air pressure. Methods for using the devices are also disclosed.

Abstract: A nail correcting device made of an elastic material includes: a pair of holding pieces arranged side by side in a predetermined direction; and a connecting piece connecting the holding pieces to each other, the pair of holding pieces each including: a body at least partly in an arc within a plane intersecting with the predetermined direction; and a pair of first and second distal edges connected to both ends of the body to hold a nail. The pair of first and second distal edges are spaced from each other along the predetermined direction at an inner side and an outer side.

Abstract: This invention is a device that utilizes hydro-block venting material in various external male and female catheter configurations to permit adequate airflow into the catheter thereby permitting efficient and complete drainage of urine away from the user following urination. In one embodiment the user's expelled urine is drawn away from the user by a pump means to a user selected storage means. In another embodiment gravity is utilized to draw the user's expelled urine away from the user to a user selected storage means. An adhesive, garment or strap attachment means are disclosed as attachment means to secure the external male and female catheter to the user and prevent leakage. The external male and female catheters each are engineered to also be able to optionally be connected to and used in combination with an indwelling catheter.

Abstract: The present invention provides an accessory and/or manufacturing stage addition to current ostomy devices which is capable of remediating or preventing various causes for concerns for the myriad populations of patients who rely on such devices.

Abstract: A flange extender for an ostomy bag comprises honey. In a preferred embodiment, the flange extender comprises a composition of hydrocolloid and medical grade Manuka honey and at least one release liner. Incorporation of honey into a flange extender provides additional adhesion to the skin of an ostomate and to a flange of an ostomy bag, increased wear time may possible and there may be reduced peristomal skin irritation. These advantages provide increased comfort for a user as well as reduced risk of infection through the antibacterial properties of honey.

Abstract: A portable male urinal container. Usage includes but is not limited to: a doctors office, hospitals, airplanes, trucks - cars, boats, etc. Having a top funnel opening with accompanied lid enclosure. Therein, liquid is contained in the apparatus aft chamber. The top wall of the pod defines flow course where from one of two handle configuration provides the means for stable operations and preventing any spillage. In a second configuration, the apparatus “bottom” section is entirely disposed with a sponge or similar absorbent material. In yet another variation, liquid can be emptied by turning the container at an ideal slant such that the contoured structure directs fluid into a 1 way valve opening. Lastly, the urinal is ideal for potty-training when bathroom facilities are impracticable for teaching purposes. Another application for the apparatus is that of a container for disposing condoms and external catheters.

Abstract: An intraoral orthosis device that has a maxillary and mandibular bite tray connect by a telescoping arm or releasable fasteners. The configuration of the telescoping arm makes it very easy for a user to adjust the length of the telescoping arm. Another object of the invention is the use of an anchor that attaches the telescoping arm to the maxillary or mandibular bite. Yet another object of the invention is a spacer that allows the user to easily adjust the positions of the telescoping arms. Accordingly another aspect of the present invention is to provide a method to manufacture an intraoral orthosis device. The method utilizes an analyzer, an articulator, and a sander. The new method ensures that the shape and angles of the intraoral orthosis device meet the specification while reducing the amount to time to manufacture the device.

Abstract: A cryogenic delivery and control system is provided. The cryogenic delivery and control system is supplied by an external cryogen supply reservoir, connected to a wet compartment which is in close communication to a man occupied dry compartment or chamber. The inhabited chamber of the present invention is used for cryogenically based, frigid atmosphere, on the order of about ?100° to about ?160° C., for the cooling and conditioning of living bodies.

Abstract: Disclosed is a device for cooling a body or body part for medical or performance-enhancing purposes, said device consisting of one or more cooling elements (11), said cooling element (11) being provided with a cover (1) that is filled with meltable cooling solid (2). The disclosed device is characterized in that an additional apparatus for displacing the already melted portion (8) of the cooling solid (2) from the contact surface (7) to the body is provided inside the cover (1), the expandable member (4, 6) being preferably designed in the form of a filled member (4) of a spring element (6) or of a foamed article. Also disclosed is an additional device which is characterized in that a layer (16) of thermochromic material indicates when a threshold temperature is exceeded, said layer (16) being applied to the bottom side of the expandable member and thus being pressed against the remaining solid portion of the cooling solid, the cover (1) being transparent in this case.

Abstract: Embodiments of the invention provide a system for temperature control of the human body. The system includes an indwelling catheter with a tip-mounted heat transfer element. The catheter is fluidically coupled to a console that provides a heated or cooled heat transfer working fluid to exchange heat with the heat transfer element, thereby heating or cooling blood. The heated or cooled blood then heats or cools the patient's body or a selected portion thereof. In particular, methods and devices are provided for control and determination of the pressure within the heat transfer element.

Abstract: A device for measuring the position of an eye of a mammal. To determine a positional change of the eye between two time points, the device comprises: at least one optical coherence tomograph for generating images of at least a part of the retina at the two time points and for emitting corresponding image data and an image processing device which is designed to compare the image data assigned to the two time points and to determine an angle of rotation between the images, wherein the image processing device is additionally designed to output the angle of rotation as information about a cyclotorsion of the eye between the two time points.

Abstract: Systems and techniques for laser surgery are described. Scan data may be created by determining a coordinate of the object at a set of points along an arc by the imaging system, wherein the coordinate of the object is a Z coordinate of an object layer. An object shape parameter and position parameter may be determined based on the scan data by a system control module by extracting an amplitude and a phase of the scan data determining a center of the object layer based on the extracted amplitude and phase.

Abstract: An ophthalmological apparatus includes a handle for manually holding and applying the ophthalmological apparatus, fastening abilities for fixing the ophthalmological apparatus at an eye, a light source, and a light projector for the focused projection of light pulses for punctiform tissue breakdown at a focal point in the interior of the eye tissue. The ophthalmological apparatus also includes a movement driver for moving the light projector. The movement of the light projector and therefore that of the focal point with the assistance of the movement driver permits a dimensioning of the optical projection system of the light projector which is substantially smaller than in the case of an ophthalmological apparatus where the focal point is moved exclusively by an optical projection system.

Abstract: A device for dispensing a mist of an ophthalmic fluid includes a discharge opening for said mist, a mixing chamber communicating with said discharge opening, an air chamber holding a volume of air, a first drive operable to expel air from said air chamber, a fluid chamber for holding a volume of the fluid to be dispensed and communicating with said mixing chamber, a second drive for delivering a predetermined dose of said fluid to said fluid chamber, said air chamber communicating with said fluid chamber and with said mixing chamber, said device establishing one flow of expelled air flowing into said fluid chamber, so as to force liquid from said fluid chamber into said mixing chamber, and another flow of said expelled air flowing past said fluid chamber into said mixing chamber.

Abstract: Configurations are disclosed for a health system to be used in various healthcare applications, e.g., for patient diagnostics, monitoring, and/or therapy. The health system may comprise a light generation module to transmit light or an image to a user, one or more sensors to detect a physiological parameter of the user's body, including their eyes, and processing circuitry to analyze an input received in response to the presented images to determine one or more health conditions or defects.

Abstract: A phacoemulsification or aspiration tip is designed for use in cataract surgeries. The phacoemulsification tip (also referred to as a phaco tip) can reduce the duration and energy of cataract surgeries because the phaco tip is designed to reduce the likelihood that cataract fragments will become clogged inside the phaco tip. For example, the phaco tip has a lumen with variable sized diameters, which helps filter out larger cataract fragments that are more likely to clog the phaco tip. Further, the phaco tip can have a larger diameter at a bend to prevent blockages. The opening of the phaco tip can have a sharp edge to shear cataract fragments into smaller pieces that are less likely to clog the phaco tip. By preventing blockages using the phaco tip and reducing the duration of cataract surgeries, patients may recover faster from the cataract surgeries.

Abstract: Disclosed here is an apparatus and method for cataract surgery. The apparatus is an instrument referred to as a chopper that allows the reduction or elimination of ultrasound and/or laser energy introduced into the eye during cataract surgery. The chopper instrument is bent at an angle, such as an angle less than 110 degrees or less than 90 degrees, to provide a posterior (to anterior) chopping, and a wedge compression of the cataract. The bend in the chopper instrument, among other features, introduces refined vector forces that help in breaking/chopping the cataract with ease. The apparatus allows laser free/ultrasound free cataract extraction in dense cataracts. The chopper apparatus, a vacuum-tip and the proper vacuum settings, when used for performing a cataract surgery by a surgeon, allows the surgeon to break up the nucleus into small enough fragments that a true ultrasound-free/laser-free small incision cataract surgery can be accomplished with ease.

Abstract: Laser assisted cataract surgery methods and devices utilize one or more treatment laser beams to create a shaped opening in the anterior lens capsule of the eye when performing a capsulorrhexis procedure. A light absorbing agent may be applied to the anterior lens capsule to facilitate laser thermal separation of tissue along a treatment beam path on the lens capsule. Relative or absolute reflectance from the eye, and optionally from a surgical contact lens, may be measured to confirm and optionally quantify the presence of the light absorbing agent, before the treatment beam is applied.

Abstract: A steerable laser probe may include a handle, an actuation lever, an optic fiber, and a housing tube. The housing tube may have a first housing tube portion having a first stiffness and a second housing tube portion having a second stiffness. The second stiffness may be greater than the first stiffness. The optic fiber may be disposed within the housing tube and within an inner bore of the handle. An actuation of the actuation lever about a pivot pin of the handle may gradually curve the optic fiber. An actuation of the actuation lever about the pivot pin of the handle may gradually straighten the optic fiber.

Abstract: A steerable laser probe may include a handle having a handle distal end and a handle proximal end, an actuation structure of the handle, a flexible housing tube having a flexible housing tube distal end and a flexible housing tube proximal end, and an optic fiber disposed within an inner bore of the handle and the flexible housing tube. A compression of the actuation structure may cause the optic fiber to gradually curve. A decompression of the actuation structure may cause the optic fiber to gradually straighten.

Abstract: A system for increasing the number of focal points in artificial eye lenses has a light source that produces a pulsed light via a beam controller that shapes the light beam according to the type of the application and properties of the zone plates that will be produced. A pulse controller conditions the light pulses according to the type of predetermined application and the zone plates that will be produced. A beam director directs the light to predetermined parts of the surface of the artificial eye lens where the zone plates will be produced. A focusing unit focuses the light beam by reducing its diameter. A scanning unit produces zone plates on the artificial eye lens by scanning the light beam on the predetermined parts of the surface of the artificial eye lens where the zone plates will be produced.

Abstract: The invention relates to an ophthalmological instrument for carrying out a laser-surgical intervention on the eye (4), comprising a femtosecond laser (1), which emits pulsed laser radiation (2), an objective (3), from which the laser radiation (2) emerges in a focused manner in the direction of the eye (4), at least one deflection device (6), which deflects the laser radiation (2) and which varies the focal position within the cornea (5) of the eye (4), and a program-controlled control device (8), which is connected to the deflection device (6) and configured to generate a predetermined cut profile within the cornea (5), wherein the cut profile comprises at least one arcuate incision (9) in the periphery of the cornea (5). It is an object of the invention to provide an improved ophthalmological instrument for anti-astigmatic keratotomy with the femtosecond laser (1).