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Device for laser assisted transurethral resection of the prostate(TURP)
Device for laser assisted transurethral resection of the prostate(TURP)
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机译：激光辅助经尿道前列腺电切术（TURP）
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摘要
This invention is related to treatment of benign prostatic hyperplasia (BPH), and more specifically, to a device particularly suited for performing an improved laser assisted transurethral resection of the prostate (TURP). This invention is an angle firing fiber optic laser delivery device. The device has a firing tip (42) which has an insert (44) with a highly reflective surface (45) lying at a specific angle with respect to the central axis of the fiber (41). The laser energy is reflected out a central opening or window (49). Another embodiment features the firing tip of the invention mounted on a cannula member. Another embodiment of the invention features a fiber with a bias cut end surface with a reflective surface provided thereon such that radiant energy is internally reflected at an operative angle for performing the prostatectomy. Various combination reflection and internal reflectance embodiments are disclosed as well. Various embodiments allow for cooling of the fiber and firing tip in different ways, including the use of cooling vents (48) on the firing tip and the use of a hollow coaxial channel for supplying irrigation fluid to the firing tip of the invention. The device can also be positioned and manipulated precisely and conveniently with the use of the positioning device and the indexed rotatable coupling device used on various embodiments of this invention.
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