A laser ablation device which, an emitting double ring beam at the tip, is used in treatment, without permanent damage and scar, of natural diseases like venous insufficiency, of subsequently-formed diseases like fistula or of hemorrhoids formed as damaging of the vein. The device includes a fiber probe with two different conical angled surfaces where the rays guided through inside the fiber are reflected at the fiber tip via a first conical shaped-end formed at a first specific angle at the fiber's tip and a second conical shaped-end formed at different second specific angle by starting from a certain portion of the first conical shaped-end.

One described aspect is an optical fiber comprising: a fiber core that extends along a fiber axis, is configured to transmit a laser energy along the fiber axis, and terminates at a distal end with an angled distal face; a jacket that surrounds a proximal portion of the fiber core along the fiber axis, and terminates at a distal end located proximal of the angled distal face; a fiber tip including a proximal end with an angled distal face; and a reflector including a proximal face attached to the angled distal face of the fiber core, a distal face attached to the angled proximal face of the fiber tip, and at least one layer configured to direct the laser energy out of the fiber core along a laser axis generally transverse with the fiber axis, wherein the optical fiber tapers along the fiber axis. Associated laser systems are also disclosed.

In one aspect, the present disclosure is directed to a system and method for ablating tissue. The method may comprise, for example, aligning a needle of a medical device with the target tissue; piercing tissue adjacent to the target tissue with the needle; sliding into the target tissue a laser fiber moveably disposed within the needle, wherein the needle is hollow and the laser fiber includes a prism; and delivering laser energy through the laser fiber and prism.

Embodiments of a surgical laser system comprise a laser source (102), a laser fiber (104), a photodetector (106) and a controller (108). The laser source is configured to generate laser energy (1 10). The laser fiber is optically coupled to the laser source and is configured to discharge the laser energy generated by the laser source. The photodetector is configured to generate an output signal (1 12) that is indicative of an intensity level of electromagnetic energy feedback (114) that is produced in response to the discharge of the laser energy. The controller is configured to control the laser source based on the output signal.

A device and method for treating a vagina's anatomic, functional and aesthetic conditions are disclosed. Device comprises a laser energy source which conveys laser energy through an optical fiber handpiece. A cylindrical/penis shaped device/applicator is specially designed for safe and accurate irradiation of determined parts of vaginal mucosa. Applicator has an inner hollow path through which optical fiber is inserted to irradiate interior vaginal tissue. Irradiated mucous tissue contracts, reducing vaginal radius and during penetration in sexual intercourse it embraces penis more tightly. Sensitivity is substantially improved and sexual intercourse is more pleasurable for both partners. In one embodiment, a 1470 nm diode laser source is used. In another embodiment, a vagina's outer dimensions are accurately measured and surgery is performed to achieve dimensions according to certain aesthetic and functional criteria. Minimum pain and risk of side effects are experienced with this ambulatory procedure performable in a physician's office.

An insertable catheter device includes a shaft including a proximal end and a distal end, an expandable balloon, and an actuator configured to expand and retract the expandable balloon. The actuator includes a fluid conduit that extends through the shaft and is coupled with the expandable balloon to enable inflation and retraction of the expandable balloon via injection or withdrawal of a fluid to or from the expandable balloon via the fluid conduit. The expandable balloon is displaceably retractable into the shaft and extendable from the shaft. A fluid pump is coupled with the fluid conduit to pump the fluid through the fluid conduit. A patch is positioned to be displaced by the expandable balloon when the expandable balloon is inflated, and the expandable balloon is displaceably retractable into the shaft and displaceably extendable from the shaft.

An intracranial treatment apparatus comprises an outer shaft having a proximal end and a distal end for positioning within the tissue region of the brain. The outer shaft defines a lumen extending between the proximal end and the distal end of the outer shaft and having at least one aperture adjacent the distal end of the outer shaft. An inner light-delivery element having a distal end and a proximal end is adapted to be operatively connected to the light source. The light-delivery element is configured to be received within the lumen and extend from the proximal end of the shaft to adjacent the distal end of the shaft. The light-delivery element is adapted to deliver light from the light source through the at least one aperture of the outer shaft to the tissue region of the brain in proximity to the distal end of the outer shaft.

Aspects of this disclosure pertain to a device with an elongated body having a distal end. The distal end may comprise a port that permits discharge of a laser energy towards a tissue from an optical fiber located in the distal end. An exterior surface of the distal end may include a cauterization portion that permits discharge of a cauterization energy towards the tissue. In some aspects, the device includes an insulative portion that attaches the distal end to the elongated body and limits energy transfer therebetween. Related systems and methods are also disclosed.

A fiber optic probe that eliminates extreme tip temperatures by radiating laser energy in a radial, 360 pattern from the surface of an exposed fiber optic tip is disclosed. In an embodiment, a fiber optic core is configured to operatively engage with a source of laser energy at a proximal end of the fiber optic tip, and, at a distal end of the fiber optic tip, includes a plurality of refracting surfaces configured to disperse laser energy in a radial pattern. In one embodiment, the refracting surfaces may be arranged as a plurality of annular prisms defined around the fiber core. In another embodiment, the refracting surfaces may be arranged as a plurality of concave lenses defined in the fiber optic tip. The temperature distribution of the disclosed probes is controlled and uniform, and may be tailored to radiate laser energy in any desired pattern which may be suitable to achieve an intended objective.

A method for photoselective vaporization of prostate tissue includes delivering laser radiation to the treatment area on the tissue, via an optical fiber for example, wherein the laser radiation has a wavelength and irradiance in the treatment area on the surface of the tissue sufficient because vaporization of a substantially greater volume of tissue than a volume of residual coagulated tissue caused by the laser radiation. The laser radiation is generated using a neodymium doped solid-state laser, including optics producing a second or higher harmonic output with greater than 60 watts average output power. The delivered laser radiation has a wavelength for example in a range of about 200 nm to about 650 nm, and has an average irradiance in the treatment area greater than about 10 kilowatts/cm.sup.2, in a spot size of at least 0.05 mm.sup.2.