TY - JOUR
AU - E. Napke
AB -  needle and cannula E. NAPKEl Karolinska Institutet, Stockholm, Sweden Department of Aviation and Naval Medicine, HIS NEEDLE AND CANNULA was developed to overcome the particular difficulties of maintaining connections in animals while recording cerebrospinal fluid, arterial, and venous pressures during induced convulsions or abrupt changes in body position. The needle and cannula require minimal surgery and animal handling and can be easily implanted without the aid of an assistant. CONSTRUCTION OF SELF-RETAINING NEEDLE : A Step I. Take the required length of stainless steel tubing, I, or hypodermic needle. In the case of a hypodermic needle, sleeve on the locking ring, 5, with screw, 6, and the nylon tubing, 7. Step 2. At 2, solder a tip-fitting piece of metal which is of the same thickness as the nylon tubing. Step 3. At 3, make 3-4 windings with a stainless steel wire, then solder. Step 4. Slide the nylon sleeve forward so that it abutts against 2. Step 5. Tightly wrap around the nylon sleeve a metal foil (approximately I cm wide) at 4. Step 6. Grasp the foil with forceps so that the foil fits snugly. The foil limits the extent of softening of the nylon. Step 
TI - An easily removable self-retaining indwelling needle and cannula
JO - Journal of Applied Physiology
DA - 1963-07-01
UR - https://www.deepdyve.com/lp/the-american-physiological-society/an-easily-removable-self-retaining-indwelling-needle-and-cannula-MEjEVL9EuL
VL - 18
IS - 
DP - DeepDyve
ER -