Open the package, connect with infusion set and exhaust, select infusion vein, disinfection, dry check needle tip and cannula tip intact hold the needle handle, with 15-30 degrees straight stab vein, slowly into the needle. After the return of blood, the needle was lowered at a low Angle, and the needle was inserted about 2mm to withdraw the needle core about 5mm. The catheter and the needle core were sent into the blood vessel together with the needle holder
Specification of intravenous indwelling needle: yellow 24G blue 22G pink 20G green 18G 0.7mm*19mm 0.9mm*25mm 1.1mm*32mm 1.3mm*32mm
The application of pulse catheter vein indwelling needle in clinic is the main way to treat diseases in clinic. With the improvement of living standard and the continuous progress of humanistic quality, there are greater requirements for medical quality. The application of intravenous indwelling needle in infusion can reduce the pain of repeated puncture in infusion to a certain extent and solve certain infusion problems. In clinical practice, the sealing fluid is usually used to slowly push forward the positive pressure to seal the tube, so that the drugs in the vessels around the indwelling needle sleeve and the cannula cannot be completely flushed out, which increases the stimulation of the residual fluid to the vessels and the damage to the indwelling needle cannula, and affects the liquid input. As a result, there are different degrees of phlebitis, blocked tube, slow infusion, short indwelling time and other problems. Pulsed tube sealing and tube punching have a certain effect on the protection of vein indwelling needle and blood vessel.
1. Pulsed tube sealing can reduce the occurrence of phlebitis. Phlebitis is mainly caused by the chemical stimulation of peripheral vascular wall caused by the infusion of hyperosmolar drugs or stimulants. The results of this study showed that the incidence of phlebitis was low in the observation group. Because slowly push note seal tube method, can form a linear flow can't completely washed away the drug inside the wall, and pulse type tube sealing of liquid seal tube can form vortex of connectivity, constantly on the casing and near blood vessels to wash, thoroughly wash away the solution, thus reducing are attached to the blood vessels and casing residual drugs, reduces the incidence of phlebitis.
2. When intravenous indwelling needle is used, tube plugging is the second major problem. Most tube blockages are caused by insufficient blood flow back into the tube and clotting caused by drug residues in the tube. Generally, the pressure on the sealing tube is slow and uniform. After the treatment, there will be a period of indwelling time of the indwelling needle. During this period, it is difficult for the blood reflux to avoid the blood backflow into the tube and coagulation. Pulsed tube sealing can form a large pressure in the casing, slow down the rate of blood return, the blood completely out of the casing, reduce the venous indwelling needle clotting tube.
3. Application of pulsed tube before infusion sealing tube indwelling needle using pulsed tube before infusion can accelerate infusion speed and protect indwelling needle and vein at the same time. The conventional indwelling needle flushing tube only USES the normal saline to push the injection flushing tube slowly and evenly, which cannot wash away the residual fluid in the casing and surrounding adjacent blood vessels. As a result, the cannulas cannot be fully opened, affecting some applications that require rapid drug input. The pulsed tube is used to draw blood with a syringe before infusion, and after observing whether there is blood returning, a little normal saline is injected slowly to observe whether there is resistance, so as to prevent embolism. When there is no resistance, the pulsed tube is used again, which can completely open the cannula, improve the infusion speed, and meet the requirements of drug treatment.
Iv indwelling time iv indwelling time iv indwelling time iv indwelling time The ordinary sealing tube cannot flush out the residual drugs, so that local tissue lesions occur, especially when using hyperosmotic drugs. If the intravenous indwelling needle is not adequately flushed, the residual drug can stimulate the local tissue to form phlebitis in a short time, affecting the continuous application of the indwelling needle. In addition, the application of the indwelling needle must also be stopped. Due to the demand of drug properties must reach a certain amount of input, for example: mannitol. If the cannula before infusion is not fully flushed and the drip rate is slow, it must be re-punctured. Pulse tube sealing reduced the incidence of phlebitis and tube blocking, and extended the indwelling time of the indwelling needle.
The incidence of phlebitis and tube blockage were reduced by pulse tube sealing, and the infusion speed was improved by pulse tube punching before infusion. So that clinical vein indwelling needle has been protected and fully used, reduce the pain of patients, improve the quality of medical care.
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