The present invention relates to comprehensive systems, devices and methods for delivering energy to tissue for a wide variety of applications, including medical procedures (e.g., tissue ablation, resection, cautery, vascular thrombosis, treatment of cardiac arrhythmias and dysrhythmias, electrosurgery, tissue harvest, etc.). In certain embodiments, systems, devices, and methods are provided for treating a tissue region (e.g., a tumor) through application of energy.

An implant with which a urinary tract can be treated in a simple and reliable manner is achieved in that a wire structure of an implant can be introduced into the urethra in a folded state with a distal end in the lead. The wire structure is unfolded inside the urethra for the treatment of the tissue. The ischemic pressure of the wires on the surrounding tissue results in denaturation. At least one further device for constricting or cutting into tissue is positioned on the wire structure. This at least one further device is designed in such a way that it exerts a local ischemic pressure on the median lobe in the unfolded state of the implant.

The invention provides a novel prostate dilation catheter, which comprises a main tube, wherein a urinary catheterization cavity, an internal capsule cavity, an external capsule cavity and a flushing cavity are provided inside the main tube, a composite bar-like high pressure water capsule is arranged in front portions of an outlet of the urinary catheterization cavity and an outlet of the flushing cavity, the composite bar-like high pressure water capsule comprises an internal capsule and an external capsule, the internal capsule is arranged inside the outer capsule and at a front end of the outer capsule, and the front ends of the internal capsule cavity and the external capsule cavity are formed with openings which are located inside the internal capsule and the external capsule respectively. Utilization of such structure makes the catheter will automatically move towards the inside of bladder after a bladder neck is dilated, so as to remove compression on an external sphincter to prevent occurrence of urinary incontinence; and in addition, it is more conducive to preoperative localization and postoperative fixation of the catheter, and can avoid bladder spasm caused by postoperative compression of the catheter on crypt.

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 an expandable structure for enhancing engagement with median lobe prostate tissue.

A non-compliant medical balloon may be changed from a deflated state to an inflated state by increasing pressure within the balloon. The non-compliant medical balloon is composed of a woven fabric layer composed of at least two woven fabric fibers forming an angle. The angle remains substantially unchanged when the balloon changes from a deflated state to an inflated state.

An instrument with a motor drive assembly detachable from a handle assembly and detachable from a gear assembly, where the gear assembly is inside the handle assembly and further the instrument comprising a standard telescope which is detachable from the instrument and a cutter/blade assembly detachable from an outer sheath. In an aspect, an instrument (1) includes a motor drive assembly (2) that is detachable from a handle assembly (3) and detachable from a gear assembly (5), wherein the gear assembly (5) is positioned inside the handle assembly (3), and wherein the motor drive assembly (2) is detachable for the purpose of being reused after cleaning or its replacement.

In some aspects, a surgical procedure for the removal of a prostate gland is provided. The procedure comprises: (a) positioning an implant material within the urethra, (b) removing the prostate, thereby cresting a urethral stump and a bladder neck, wherein the implant material occupies the urethral stump, the bladder neck, or both, and (c) securing the bladder neck to the urethral stump in an anastomosis procedure to establish a path of urine flow from the bladder to an external urethral opening (e.g., the meatus). Subsequently, the implant material is removed from the urethra, for example, by natural urine voiding or by flowing a removal fluid through and/or around the implant material in the urethra. In other aspects, a medical kit is provided.

Method and surgical instrument for treating prostate tissue including a surgical instrument having a main body, a needle deployment port, a needle, first and second handles and a lockout release mechanism to limit needle extension. Additionally, a kit includes the surgical instrument, together with a cystoscope, and optionally a syringe and reservoir of ethanol. The method includes needle-less injection and visualizing the ethanol injection by delivering both an echogenic agent and ethanol either by needle or needle-less injection or by providing an ultrasonically visible marker near the tip of the ethanol delivery cannula. The method also includes extending the needle transversely of the instrument housing using a link assembly.

Described is a system (100) and medical device (200) for the electromagnetic tracking of a medical instrument transported through a medical device, the medical device having a central axis (210), a channel (206) that receives and transports a medical instrument through the medical device, the channel extending to a distal portion (202) of the medical device and being in communication with an opening (216) in the medical device that is not aligned with the central axis, the device having a tracking component (220, 224) that is a plurality of coordinated electromagnetic sensors for generating a virtual axis (222) of travel for the medical instrument, with the virtual axis passing through the opening of the device and being aligned with tool insertion axis (206).

Urethrotome dilators for dilating a urethral stricture, and methods for forming and using the same are disclosed. In some embodiments, the urethrotome dilator includes a first distal end with a dilating head, a second proximal end with a handle, and a stem for connecting the first end to the second end. The dilating head may have a first region, a second region, and a channel for receiving a guidewire. The first region of the dilating head may have a substantially conical surface, with a vertex at its distal end and a base at its proximal end. The second region may have a substantially flat surface and a blade for stretching tissue. The blade may be integrally formed within the second region and may extend from the flat surface. The top edge of the blade may be tapered and blunt, while the two opposing sides of the blade may be formed with sharp corners for cutting tissue.