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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