A molded andundivided medical penetratingdevice comprises a first portionand a second substantially tubularportion having an outer surface,a proximal end and a distal end.The proximal end of the secondsubstantially tubular portion ofthe device is joined Io and isintegral with the first portion ofthe device and is adapted to bemaintained essentially outside abody while the first portion of thedevice is adapted to jbe retainedwithin the interior of the body.The device includes an openingthat extends through the first andsecond portions of the device andprovides access to the interior ofthe body from outside the body.The opening and the outer surfaceof the substantially tubular secondportion of the device define a wallthat is thinner at the proximal,endof the second portion than towards
