The finger of a thick rubber glove is divided lengthwise into four parts, up to about 1/2 inch of the tip. One-eighth inch from the end of each strip a slit about 3/8 inch long is made. A very small hole is made in the center of the tip through which the catheter is to pass.
From some other part of the glove is then cut a strip, 5 to 6 inches long, and 3/8 inch wide except at one end which is 1/2 inch wide and has three slits cut crosswise, through which the other end is passed after having been threaded through the four strips of the first piece. This can be drawn fairly snugly behind the corona and will hold the catheter in position.