摘要:
A system to treat a patient comprises a user interface that allows a physician to view an image of tissue to be treated in order to develop a treatment plan to resect tissue with a predefined removal profile. The image may comprise a plurality of images, and the planned treatment is shown on the images. The treatment probe may comprise an anchor, and the image shown on the screen may have a reference image marker shown on the screen corresponding to the anchor. The planned tissue removal profile can be displayed and scaled to the image of the target tissue of an organ such as the prostate, and the physician can adjust the treatment profile based on the scaled images to provide a treatment profile in three dimensions. The images shown on the display may comprise segmented images of the patient with treatment plan overlaid on the images.
摘要:
A fluid jet is directed at tissue to erode tissue with a controlled amount of ablative energy of a jet. Embodiments as described herein can provide controlled removal of ocular tissue, and can remove a pre-defined volume having a pre-determined shape, for example. The accurate tissue removal as described herein can have many applications, such as removal of the lens for cataract surgery to more completely remove the cortex and nucleus of the lens and to separate layers of the lens. The length of an ablation depth extending from an opening that releases the jet can be controlled, and the angle and longitudinal position of the opening can be controlled together, in order to ablate a pre-determined volume of tissue having the surface profile.
摘要:
An apparatus is configured to provide hemostasis with tissue removal in order to inhibit one or more of blood loss or tissue drainage. In many embodiments, a nozzle releases a liquid jet in a liquid medium in order to provide cavitation and a plurality of shedding pulses. The liquid jet, its cavitation and the plurality of shedding pulses can affect vascular tissue in order to promote clotting in order to inhibit bleeding. In many embodiments, vessels of the vascular tissue are affected at a distance from a region where cavitation of the water jet contacts the tissue. In many embodiments, the cavitation and plurality of shedding pules are related to a pulsatile shear wave propagating along the blood vessel that is related to clot promoting changes of the blood vessel.