| 摘要 |
<p>A suture guide (100) and, in particular, a urethral sound having interchangeable tips (102-106) for placing sutures (160-164) in the severed end (156) of a body duct (155). The urethral sound (100) includes an attachment mechanism (107) having interconnection parts (108-113) longitudinally rotatable when interconnected. The sound (100) further includes an elongated member (101) having a distal end portion (117) including one (108) of the interconnection parts. A plurality of interchangeable tips (102-106) are provided each having a rounded distal end (129, 134, 149, 150, 138) and a proximal end including the second interconnection part (109-113). Interchangeable tips (102-106) are positioned at the distal portion (117) of the elongated member (101) and are longitudinally rotated thereat. Various tips (103, 104, 106) include one or more apertures (137, 140, 141, 147) for placing sutures (160-164) through, for example, a severed urethral stump (155) created during a radical prostatectomy. Channels (148, 154) are also placed in a number of the tips (104, 105) to provide placement of individual sutures (160-164) about the distal end (156) of the severed stump (155) as desired by the physician. The method includes positioning the urethral sound tip (102-106) out the distal end (156) of the duct (155) with an aperture (137, 140, 141, 147) in the tip (102-106) partially protruding from the duct (155). A suture thread (158) is passed through the aperture (137, 140, 141, 147) and cut to form two equal length suture pieces (160) on the opposite sides of the duct (155). The urethral sound tip (102-106) is rotated to further position additional suture pieces (161, 163, 164) about the severed end (156) of the duct (155). The pieces (160, 161, 163, 164) are formed by cutting the suture extending through the aperture (137, 140, 141, 147) at the mid-point thereof. <IMAGE></p> |
