A vapor delivery system and method is provided that is adapted for treating prostate tissue. The vapor delivery system includes a vapor delivery needle configured to deliver condensable vapor energy to tissue. In one method, the vapor delivery system is advanced transurethrally into the patient to access the prostate tissue. The vapor delivery system includes a generator unit and an inductive heating system to produce a high quality vapor for delivery to tissue. Methods of use are also provided.

A needle groove plate (5), a puncture support (100) and a biopsy device are disclosed. The puncture support (100) includes a main body (1), a rod (4), and a needle groove plate (5), wherein the main body (1) can be connected to an ultrasonic probe (200) and is provided with a channel (13), and the length of the channel (13) is less than the length of the rod (4); the rod (4) can from a first end thereof go into the channel (13) and slide back and forth in the channel (13) along a first direction, the first direction being parallel to an extending direction of the rod (4); and the needle groove plate (5) is fixed to a second end of the rod (4), and is provided with at least one needle penetration hole (513) parallel to the first direction. The technical solution provided by the present invention not only optimizes the structure of the puncture support (100) and reduces its volume, but also reduces manufacturing costs; flexible and telescopic operations can be made between the rod (4) and the main body (1), so that the position of the needle groove plate (5) is adjustable, thereby preventing the needle groove plate (5) from pressing the perineum of a patient and reducing discomfort in a puncture process; further, a puncture needle can be separated from the puncture support (100) and the ultrasonic probe (200) during surgery, thereby facilitating flexible operations by a doctor.

Prostate treatment using fluid stream to resect prostate tissue, thereby relieving symptoms of conditions such as BPH, prostatitis, and prostatic carcinoma. A device having a fluid delivery element is positioned within a lumen of the urethra within the prostate. A fluid stream is directed outwardly from the fluid delivery element toward a wall of the urethral lumen. The fluid delivery element is moved to scan the fluid stream over the wall to remove a volume of tissue surrounding the lumen. The fluid may be combined with therapeutically active substances or with substances that increase resection efficiency. Fluid force may be adjusted to provide selective tissue resection such that soft tissue is removed while harder tissue is left undamaged. In order to gain a working space within the urethra, another fluid may be introduced to insufflate the urethra in the region of treatment.

An interventional instrument (30) having ultrasound sensors (S1, S2, S3, S4, . . . ) is tracked using an ultrasound imaging device (10) that acquires and displays a 2D ultrasound image of a visualization plane (18), and performs 2D ultrasound sweeps for a range of plane angles (θ) obtained by rotating the ultrasound probe (12) and encompassing the visualization plane angle. For each ultrasound sensor, an optimal plane is found based on its emitted signal strength over the range of plane angles, and the ultrasound sensor is located in its optimal plane by analyzing the sensor signal as a function of the timing of the beams fired by the ultrasound probe. These locations in their respective optimal planes are transformed to a 3D reference space using a transform (42) parameterized by plane angle, and a visual indicator is displayed of spatial information (T, L) for the interventional instrument generated from the locations of the one or more ultrasound sensors in the 3D reference space.

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.

An anatomical sensing system-guided prostate procedure device that includes a housing having a proximal end and a distal end. The housing may be divided into a distal housing section, a mid housing section, and a proximal housing section, wherein the distal housing section is configured for insertion into the anus and retention in the rectum of a subject. The device further includes an instrument convergence point disposed between the proximal end and the distal end, the convergence point configured to allow an instrument pass though the instrument convergence point at a variable angle; and an instrument angle orienting system at the proximal end of the housing, the angle orienting system directing an orientation of the variable angle about the convergence point. Methods of the using an anatomical sensing system-guided prostate procedure device and system including the same.

A system and method for providing relative positional information of a therapeutic or diagnostic device during the treatment of urinary tract diseases and conditions.

A system and associated method for manipulating tissues and anatomical or other structures in medical applications for the purpose of treating diseases or disorders or other purposes. In one aspect, the system includes a delivery device including a flexible portion that is suited to access target anatomy. The flexibility of an elongate portion of the delivery device can be varied. Additionally, the delivery device can include structure that maintains the positioning of the delivery device in patient anatomy.

Ablation catheters and systems include coaxial catheter shafts with an inner lumen for delivering an ablative agent and an outer lumen for circulation of a cooling element about the catheter. Induction heating is used to heat a chamber and vaporize a fluid within by wrapping a coil about a ferromagnetic chamber and providing an alternating current to the coil. A magnetic field is created in the area surrounding the chamber which induces electric current flow in the chamber, heating the chamber and vaporizing the fluid inside. Positioning elements help maintain the device in the proper position with respect to the target tissue and also prevent the passage of ablative agent to normal tissues.

An implant for creating incisions in the tissues surrounding the bladder neck and the urethra of a patient, for relaxing the opening of the bladder, the implant includes a central connector and at least one wire, the wires extend radially outwardly from the center of the central connector, the wires apply continuous pressure on the surrounding tissues, the wires are foldable within an implant sheath for enabling delivery and extraction thereof, the implant is implanted within a restricted location of the urethra for a period of time for creating incisions at the locations where the wires apply pressure on the surrounding tissues.