Indwelling needles, also known as trocars, are made of biological materials. In recent years, it has been gradually applied to the clinical practice of pets, and has become an important way of clinical, emergency medicine and nutrition supply.
The features are: simple operation, soft cannula, long indwelling time of cannula in the vein and not easy to penetrate the vessel wall. It not only relieves the pain caused by the repeated puncture of the sick dog, but also reduces the workload of the pet hospital and improves the work efficiency.
operate:
1) Selection of blood vessels:
What are the characteristics of the reservoir? do you know?
Vessels that use venous indwelling needles should be relatively thick, straight, elastic, rich in blood flow, have no venous valves, avoid joints and are easy to fix; for sick dogs, the cephalic vein of the forelimb, the saphenous vein of the hind limb, and the saphenous vein of the medial femoral vein can be selected. .
2) The angle of needle insertion is 15°, and different needle holding methods can be selected according to personal habits. Shallow piercing into the subcutaneous tissue and extending the direction of the blood vessel into the 2-5 rm, if the transparent needle tail has a phenomenon of blood returning, the needle insertion will be stopped. Step 3: At this time, use the idle index finger to gently push the raised handle of the needle to make the soft needle enter the blood vessel. Do not pull out the hard needle to prevent backflow of blood. . Step 4: Fix the soft needle body with tape. The purpose is to stabilize the needle body and prevent the soft needle from slipping out of the blood vessel when the hard needle is withdrawn.
