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VIArterial catheterization is a frequent procedure in intensive care settings and the operating room. This procedure involves the placement of a catheter into the lumen of a peripheral artery to facilitate hemodynamic monitoring and arterial blood sampling. Intra-arterial catheters (also called arterial cannulas or A-lines) are often inserted for invasive blood pressure (BP) monitoring and intravascular access for blood sampling in high-risk surgical and critically ill patients.
CHARACTERISTICS
1. The tube is made of polyurethane with good biocompatibility and it is convenient for catheter placement due to stiff catheter
2. Standard Seldinger Technique
3. Catheter and guidewire are protected by sheath
4. Nitinol or stainless steel guidewire is available
5. Straight or Y-Shaped introducer needle configuration is available
Arterial cannula and arterial catheter comparison
| Item | Arterial cannula | Arterial catheter |
| Structure | With switch on/ offWhen close the valve, Can avoid the blood come out after the insertionIt’s easy to link with the transducer without blood bleeding | Without switch on/off, with one Clamp on the lineThe blood will come out after the insertion, need to clamp the line during linking with the transducer. |
| Components | Only one arterial cannula in the blister | Arterial catheter, Guidewire, Puncture needle in pouch |
| Length | 22mm-50mm | 5-50cm |
| Indication | Blood pressure monitoring, blood sampling, infusion | Blood pressure monitoring, blood sampling, infusion |
| Insertion location | Radial, brachial and arteria dorsalis pedis | Radial, brachial and femoral artery |
| Insertion duration | Short term | Short term |
| Use environment | When the artery situation is complicate, they may need the ultrasound to facilitate the insertion | When the artery situation is complicate, they may need the stiff guidewireAnd also can facilitate by ultrasound |
| Technology | Normal insertion | Seldinger technique |
| Department | Anesthesia during operation, normally take out after operationICU in case the patient need to monitor the blood pressure | Anesthesia during operation, normally take out after operationICU in case the patient need to monitor the blood pressure |
| Class | IIa | III |
| Cost | Cheaper | Expensive |
