Abstract:
A method, code and system for planning the treatment a lesion on or adjacent to the retina of an eye of a patient are disclosed. There is first established at least two beam paths along which x-radiation is to be directed at the retinal lesion. Based on the known spectral and intensity characteristics of the beam, a total treatment time for irradiation along each beam paths is determined. From the coordinates of the optic nerve in the aligned eye position, there is determined the extent and duration of eye movement away from the aligned patient-eye position in a direction that moves the patient's optic nerve toward the irradiation beam that will be allowed during treatment, while still maintaining the radiation dose at the patient optic nerve below a predetermined dose level.
Abstract:
An eye contact device and assembly for stabilizing a human eye at a selected position in an external coordinate system is disclosed. The device includes an eye-contact member having an inner contact surface for contacting a front surface of an eye, and a vacuum port formed within the eye-contact member and communicating with the eye-contact member's contact surfaces, by which a negative pressure can be applied between the eye and the contact surface, to stabilize the position of the eye with respect to the device. The device, which is adapted to be biased against the patient's eye, to secure the device to the eye, may be pivotally coupled to a positioning arm, and may carry one or more beam-directing elements by which the position of the device in an external coordinate system can be determined.
Abstract:
A medical device for interposition between a first flow path and at least one second flow path is provided. The device includes a first surface facing toward the opening of at least one second flow path; and a second surface facing away from the opening of at least one second flow path. When the device is in the operative position, it extends less than the complete circumference of the first flow path and substantially covers the opening of at least one second flow path. The device contains one or more surface features to facilitate chronic implantation. The device further has one or more characteristic porosities. Different configurations are indicated depending on the pathophysiology being treated and dictate the characteristic porosity of the device. In some, cases blood is prevented from reaching the second flow path and in other cases, particulates traveling within the blood are prevented from reaching the second flow path. Methods of preventing emboli or blood flow into the second flow path are also provided. Methods and devices for delivery are also provided.
Abstract:
Disclosed are methods and apparatus for implantation into the walls or an organ such as the stomach. Deformable or inflatable anchors with a connector between are used to pull the walls of the organ together, or to implant devices in the wall of the organ. Also disclosed are surgical instruments useful in practicing the disclosed methods.
Abstract:
This invention provides surgical devices and methods to apply bioactive agents to surgical sites. The devices include, e.g., a body for attachment of a pressurized fluid vessel and a reservoir of bioactive agent for controlled spraying of an aerosol of bioactive agent for controlled spraying of an aerosol of bioactive agent.
Abstract:
In some examples, nerves surrounding arteries or leading to organs are targeted with energy sources to correct or modulate physiologic processes. In some examples, different types of energy sources are utilized singly or combined with one another. In some examples, bioactive agents or devices activated by the energy sources are delivered to the region of interest and the energy is enhanced by such agents or the agents are enhanced by the energy sources.
Abstract:
A radiosurgery system is described that is configured to deliver a therapeutic dose of radiation to a target structure in a patient. In some embodiments, inflammatory ocular disorders are treated, specifically macular degeneration. In some embodiments, other disorders or tissues of a body are treated with the dose of radiation. In some embodiments, the target tissues are placed in a global coordinate system based on ocular imaging. In some embodiments, the target tissues inside the global coordinate system lead to direction of an automated positioning system that is directed based on the target tissues within the coordinate system. In some embodiments, a treatment plan is utilized in which beam energy and direction and duration of time for treatment is determined for a specific disease to be treated and/or structures to be avoided. In some embodiments, a fiducial marker is used to identify the location of the target tissues. In some embodiments, an eye is held with force and in alignment with the system. In some embodiments, the device automatically turns off with excessive movement outside of alignment along an axis of the eye. In some embodiments, radiodynamic therapy is described in which radiosurgery is used in combination with other treatments and can be delivered concomitant with, prior to, or following other treatments.
Abstract:
Devices, systems and methods are provided which are capable of applying pressure and constraint to the heart and use the pericardium to assist in the application of the pressure and force to the heart.
Abstract:
Methods and devices to perform gastroplasty procedures. In some embodiments, gastroplasty devices and methods are enhanced by feedback control though sensors which reside on or near the device. In some embodiments, an extragastric device is used to create a satiety in a patient. In some embodiments, a band device is the restriction device and in some embodiments a transgastric fastening assembly is the restriction device.
Abstract:
Methods and devices to perform gastroplasty procedures. In some embodiments, gastroplasty devices and methods are enhanced by feedback control though sensors which reside on or near the device. In some embodiments, an extragastric device is used to create a satiety in a patient. In some embodiments, a band device is the restriction device and in some embodiments a transgastric fastening assembly is the restriction device.