this description is presented in the cause of providing what is believed to be the most useful and readily understood description of the principles and conceptual aspects of the invention . in this regard , no attempt is made to show operational details of the invention in more detail than is necessary for a fundamental understanding of the invention , the description taken with the figures making apparent to those skilled in the art how at least one form of the invention may be embodied in practice . a variety of so - called tunnelers or surgical introducers are known and used to introduce medical devices into the human body . however , in the treatment of female patients diagnosed with stress urinary incontinence , the altis ® introducer is commonly employed to deliver and correctly place an anchor end of a single incision altis ® sling to the female human body . the altis ® sling is made from a polypropylene light - weight mesh flanked by two anchor ends that anchors the sling to tissue of the human body after transobturator placement thereof during a surgical procedure . although , the altis ® introducer is often successfully employed to introduce the altis ® sling to the female human body , it fails to do so where larger woman is treated for stress urinary incontinence . the reason behind this is because the pubic ramus and overlying fat and tissue in larger woman are often disposed such that correct placement of the anchor ends of the altis ® sling cannot be effected without difficulty when the standard altis ® introducer is employed because of the specific curvature of the altis ® introducer . referring to the drawings , a set of surgical tunnelers or introducers ( 10 ) in accordance with the invention and for introducing a suburethral sling into the female human body , is provided . each introducer ( 10 ) is a mirror image of the other and adapted to be used on the left and right side of the patient during surgery . each introducer comprises a tine ( 12 ) having proximal ( 14 ) and distal ( 16 ) ends , the tine ( 12 ) is connected to a curved wire - like body ( 18 ) which is divided into first ( 20 ) and second ( 26 ) portions . the first portion ( 20 ) extends from a handle ( 22 ) end to an elbow ( 24 ), while the second portion ( 26 ) extends from the elbow ( 24 ) to the tine ( 12 ). the tine ( 12 ) is narrower than the wire - like body ( 18 ) and includes a sharp tip ( 30 ) at the distal end ( 16 ). both the tine ( 12 ) and the wire - like body ( 18 ) are typically manufactured from a metal alloy while the handle is manufactured from a suitable plastic . the first portion ( 20 ) extends along an axis parallel to a longitudinal axis of the handle ( 22 ) while the second portion ( 26 ) is bent relative to the first portion ( 20 ) at the elbow ( 24 ) to define a semi - circular concave shape , terminating at the proximal end ( 14 ) of the tine ( 12 ). the set of surgical introducers ( 10 ) are characterized in that an imaginary rectilinear line b , slanting from the elbow ( 24 ) towards the distal end ( 16 ), can be visualized . in use , the sharp tip ( 30 ) at the distal end ( 16 ) of the tine ( 12 ) is pushed to project partially through the anchor end ( not shown ) of the sling so that the anchor end is accommodated on the distal end ( 16 ) with the sharp tip ( 30 ) extending partially through the anchor end . at this stage , the introducer ( 10 ) with the anchor end positioned thereon is maneuvered through a 1 to 2 cm vaginal incision , while the index finger protects the bladder of the patient . the hand - held introducer is then further maneuvered until the distal end ( 16 ) is brought up to the medial border of the descending pubic ramus . the introducers ( 10 ) of the invention , each of which defines a distance b , of anywhere between about 60 and 75 mm , between the elbow ( 24 ) and the sharp tip ( 30 ), easily reach into the obturator foramen and past the descending pubic ramus thereby greatly facilitating swift and correct placement of the anchor ends within the body . thereafter , a one quarter turn rotation of the handle ( 22 ) allows the anchor end at the sharp tip ( 30 ) to easily protrude through the obturator membrane and / or muscles . the result is that the sharp tip ( 30 ) then faces towards the surgeon from within the body of the patient , and at this point the surgeon knows that the anchor end penetrated through the entire obturator membrane such that the sling is in the preferred suburethral position within the female body . subsequently , the sling is tensioned , incision closed and the combination of sling and tissue ingrowth under the urethra becomes the new substructure for urethral support . while one embodiment of the present invention has been herein shown and described , it will be understood that minor changes may be made without departing from the spirit and scope of the invention . the monopoly for which protection is claimed is set out in the set of appended claims which follows hereinafter .
the present invention relates to the treatment of persons with urinary incontinence . more particularly , the invention extends to a set of introducers shaped to accommodate the altis ® suburethral sling , which is commonly used in surgical treatment of female stress urinary incontinence .