53 results about "Capsulotomy" patented technology

Disclosed is a system and method for making a first incision in an anterior capsule of a capsular bag, the first incision being less than or equal to approximately 3.5 mm in diameter and making a second incision in the anterior capsule, the second incision being less than or equal to approximately 3.0 mm in diameter. The first incision and the second incision are positioned off-center from a center portion of the anterior capsule. The method includes performing lens fragmentation of a lens in the capsular bag to yield lens material, inserting a first instrument into the first incision, inserting a second first instrument into the second incision and removing the lens material via one of the first instrument and the second instrument and through one of the first incision and the second incision. The tensile structure of the anterior portion of the capsular bag is maintained such that accommodation exists within the eye after insertion of the intraocular lens.

A system and tool for performing a capsulotomy procedure. The system includes an air pressure unit, a capsulotomy and movement control unit providing electrical current and movement control, and a capsulotomy tool, and an extendable-retractable burning element coupled to the tool. A capsulotomy and movement control unit provides electrical current to the burning element and movement control for extending and retracting the burning element. When the burning element is in a flattened, retracted configuration, the tip of the tool can be inserted through a relatively small corneal incision. Then, the burning element is opened to a circular, extended configuration, allowing a capsulotomy by applying an electrical pulse to the burning element. Optionally, predefined points of weakness allow removal of the tool should breakage occur during surgery.

A system and tool for performing a capsulotomy procedure. The system includes an air pressure unit, a capsulotomy and movement control unit providing electrical current and movement control, and a capsulotomy tool, and an extendable-retractable burning element coupled to the tool. A capsulotomy and movement control unit provides electrical current to the burning element and movement control for extending and retracting the burning element. When the burning element is in a flattened, retracted configuration, the tip of the tool can be inserted through a relatively small corneal incision. Then, the burning element is opened to a circular, extended configuration, allowing a capsulotomy by applying an electrical pulse to the burning element. Optionally, predefined points of weakness allow removal of the tool should breakage occur during surgery.

Various embodiments of a capsulotomy repair device include a resistive-heating element comprising an electrically resistive, superelastic wire forming a loop between first and second ends of the superelastic wire. The first and second ends of the loop may at least partially extend at an angle from a planar face defined by the loop, to an insulating portion, to form a transitional neck between the loop and the insulating portion. The capsulotomy repair device may be positioned in the eye relative to a capsularhexis perimeter to overlap tears in the capsularhexis perimeter to remove the tears by forming an adjusted capsularhexis perimeter by burning around the tear.

A surgical device and procedure are provided for smoothly and easily accessing tissue to perform microsurgery, including a capsulotomy of a lens capsule of an eye. The device includes a handpiece with a tip for insertion into an incision in the cornea of the eye. A sliding element is disposed within the handpiece and a suction cup is mounted to the sliding element. The sliding element can be translated to move the suction cup into and out of the handpiece. A compression mechanism associated with the suction cup and the handpiece compresses the suction cup for deployment through the tip of the handpiece. The suction cup can expand inside the anterior chamber into a cutting position on the lens capsule. A cutting element mounted to the suction cup is used to cut a portion of the lens capsule and to remove the portion from the eye.

A system and tool for performing a capsulotomy procedure. The system includes an air pressure unit providing pressurized airflow, a capsulotomy and movement control unit providing electrical current and movement control, and a capsulotomy tool including a main housing, and an extendable-retractable burning element coupled to the main housing. The tool is in connection with the capsulotomy and movement control unit for providing electrical current to the burning element and movement control for extending and retracting the burning element. When the burning element is in a flattened, retracted configuration, the tip of the tool can be inserted through a relatively small corneal incision. Once in the anterior chamber, the burning element is switched to a circular, extended configuration, so as to allow performance of a capsulotomy by applying an electrical pulse to the burning element.

A system and tool for performing a capsulotomy procedure. The system includes an air pressure unit, a capsulotomy and movement control unit providing electrical current and movement control, and a capsulotomy tool, and an extendable-retractable burning element coupled to the tool, and a slidable shaping element. A capsulotomy and movement control unit provides electrical current to the burning element and movement control for extending and retracting the burning element. When the burning element is in a flattened, retracted configuration, the tip of the tool can be inserted through a relatively small corneal incision. Then, the burning element is opened to a full circular, extended configuration, by pressing the shaping element against both joints of the bands, allowing a capsulotomy by applying an electrical pulse to the burning element.

A surgical device and procedure are provided for performing microsurgery, including a capsulotomy of a lens capsule of an eye. The device has an elastically deformable cutting element mounted within an elastomeric suction cup. The suction cup is attached to an arm for manipulating the device. The device can be inserted into the anterior chamber of the eye, through a corneal incision, to cut a piece from the anterior portion of the lens capsule of the eye. The device is secured against the lens capsule using suction applied by one or more suction elements. The device is then removed from the eye, with the cut piece of membrane retained within the device by suction.

A capsulotomy device for use in an eye having a capsular bag, comprising a conductive, primary coil capable of generating magnetic field lines and a conductive, secondary coil configured to permit insertion through an incision having a diameter of 3 mm or less, and placement on the capsular bag. When the magnetic field lines are projected through the secondary coil, a current is generated within the secondary coil.

A surgical device and procedure for accessing tissue to perform microsurgery, including a capsulotomy of a lens capsule of an eye. The device includes a handpiece with a tip for insertion into an incision. A sliding element is disposed within the handpiece and a suction cup is mounted to the sliding element. The sliding element can be translated to move the suction cup into and out of the handpiece. A compression mechanism associated with the suction cup and the handpiece compresses the suction cup for deployment through the tip of the handpiece. The suction cup can expand inside the anterior chamber into a cutting position. A cutting element mounted to the suction cup is used to cut a portion and to remove the portion. The cutting element may be mounted to a cutting element support structure in a way that prevents heating of the device.

A minimally invasive surgical procedure for replacing a hip joint is provided. A main incision is initiated at a point being a projection of a tip of a greater trochanter and extends proximally about a distance in the range of from 1 cm to 8 cm in line with the femoral axis. An inline capsulotomy is performed, while keeping muscles and posterior capsule intact, to expose the hip joint capsule for accessing the hip joint. The femoral canal is prepared for receipt of a femoral implant. The femoral head is resected and removed out of the acetabulum. A step of acetabular preparation is performed using a retractor comprising two tip rails, each tip rail having a plurality of tines. Related tools, devices, systems and methods are also provided.

A surgical device is disclosed for cutting tissue, including for performing a capsulotomy of a lens capsule of an eye. This device includes a reversibly collapsible cutting element for cutting a portion of a capsule membrane of the eye. The cutting element includes an outer layer, an inner layer, and a bottom layer that has a higher electrical resistance than the electrical resistance of the outer layer and the inner layer. The bottom layer is configured to conduct an electrical current between the outer layer and the inner layer, which causes a temperature increase in the bottom layer for cutting tissue.

Embodiments of the invention provide hydrodissection and / or PCO prevention or reduction in a patient undergoing eye surgery. In one embodiment, the invention is a surgical device for cutting and excising a portion of tissue, for example in performing a lens capsulotomy. A capsulotomy tip is inserted into an eye through an incision in the surface of the eye. The capsulotomy tip includes a suction cup to provide suction to the lens capsule. Then suction is applied via the suction cup to secure the capsulotomy tip to the eye. In some embodiments, after the capsulotomy tip is secured to the lens capsule, a cutting element of the capsulotomy tip is used to cut a tissue of the eye. Fluid is pushed through the capsulotomy tip and the capsulotomy tip is removed from the eye. Moreover, disclosed is an intraocular lens (IOL) to be used in conjunction with the surgical device.

An Anterior Capsule Remover (“ACR”) device allows an ophthalmologist to safely and efficiently remove an anterior portion of the lens capsule at the beginning of cataract surgery. The device allows the surgeon to safely, efficiently and consistently create a circular central opening of a predetermined diameter in the top of the lens capsule. An exemplary anterior capsule remover apparatus includes a handle and a distal shaft that holds a blade or cutter. One or more o-rings attached to a thumbwheel and to the blade allow the surgeon to easily create a circular, central opening in the anterior capsule of predetermined diameter.

An intraocular lens has central lens body with a first and second, opposite posterior and anterior surfaces, the posterior and anterior surfaces meeting in a rounded peripheral side surface. The lens further has at least a pair of haptics extending from the peripheral side surface of the central lens body, each of the haptics having an arcuate configuration so that a radially distal end of each haptic is engageable within the ciliary sulcus of the eye. The haptics engageable with the ciliary sulcus for stabilizing the central lens body at a location posterior, or rearward, of both the lens capsule anterior and posterior portions, such that the central lens body seals the anterior and posterior portions together proximal to a capsulotomy in each of the anterior and posterior portions.

Various embodiments of a capsulotomy repair device include a resistive-heating element comprising an electrically resistive, superelastic wire forming a loop between first and second ends of the superelastic wire. The first and second ends of the loop may at least partially extend at an angle from a planar face defined by the loop, to an insulating portion, to form a transitional neck between the loop and the insulating portion. The capsulotomy repair device may be positioned in the eye relative to a capsularhexis perimeter to overlap tears in the capsularhexis periemeter to remove the tears by forming an adjusted capsularhexis perimeter by burning around the tear.