What is an ICP transducer?

What is an ICP transducer?

PCB® offers a complete line of high pressure ballistic sensors with integral electronics. They operate from a PCB® constant-current signal conditioner and provide a high-voltage, low-impedance output.

What is a Codman catheter?

A technically innovative anti-microbial impregnated catheter for external CSF drainage which reduces gram positive bacteria on catheter tube surfaces. CODMAN® BACTISEAL™ EVD CAThETEr. CONTrOL CAThETEr 1. Coagulase-negative staphylo- cocci on the surface of the lumen.

What is a Codman monitor?

The Codman MicrosensorTM measures intracranial pressure via a strain gauge microchip located at the tip of the catheter. Pressure is reflected as an electrical voltage that is transmitted to the proximal end of the catheter through nylon encapsulated copper wires.

How is ICP monitoring done?

Intracranial pressure (ICP) monitoring is a diagnostic test that helps your doctors determine if high or low cerebrospinal fluid (CSF) pressure is causing your symptoms. The test measures the pressure in your head directly using a small pressure-sensitive probe that is inserted through the skull.

How do you measure ICP pressure?

Intracranial pressure is measured in two ways. One way is to place a small, hollow tube (catheter) into the fluid-filled space in the brain (ventricle). Other times, a small, hollow device (bolt) is placed through the skull into the space just between the skull and the brain.

How do you zero Codman EVD?

Zeroing

1. The ICP only requires ‘zeroing’ if requested by the Codman™ monitor.
2. Codman™ monitor should be connected to the Phillips™ monitor via the ICP monitor cable into the transducer.
3. Turn the Codman™ monitor on and press ‘0’
4. On the Phillips™ monitor, press the ‘Zero’ button.

Where does a Codman sit?

ICP can be monitored via a fibre optic monitor (Codman™ microsensor) which is placed on the surface of the brain or in the brain or an external ventricular drain (EVD) system which is a closed sterile system allowing drainage of CSF via a silastic catheter tip which rests in the ventricle.

Where is an ICP monitor placed?

Intracranial pressure (ICP) monitoring uses a device placed inside the head. The monitor senses the pressure inside the skull and sends measurements to a recording device.

How long is ICP monitored?

Monitoring usually lasts 24 hours but can occasionally be needed for several days. ICP monitoring tends to be carried out on Koala or Bumblebee Ward although it can also be done in the intensive care unit if that is where your child is being nursed.

What is a normal ICP reading?

For the purpose of this article, normal adult ICP is defined as 5 to 15 mm Hg (7.5–20 cm H2O). ICP values of 20 to 30 mm Hg represent mild intracranial hypertension; however, when a temporal mass lesion is present, herniation can occur with ICP values less than 20 mm Hg [5].

When should an ICP monitor be placed?

Consequently an ICP monitor is recommended after a craniotomy particularly when there are other associated factors, e.g., hypoxia, hypotension, pupil abnormalities, midline shift >5 mm, brain swelling at surgery, and when patients may require other surgeries for extracranial injuries.

When monitoring ICP the transducer must be level with?

Figure 1.02: Tape the transducer to be level with the zero reference point on the drainage unit.

Can the Codman microsensor transducer (CMT) be used to monitor intraspinal pressure?

Objective: To test the Codman Microsensor Transducer (CMT) in a cervical gel phantom. To test the CMT inserted to monitor intraspinal pressure in a patient with spinal cord injury.

What are the different types of Codman ICP microsensors?

There are two different types of Codman ICP Microsensors TM . Both microsensor catheters are zeroed and connected to a Codman Express TM using the same way. The intraparenchymal catheter is a thin catheter inserted into brain tissue (parenchyma), just below the level of the dura.

How is the intracranial pressure (ICP) measured?

The proximal end of the catheter is connected to the Codman Express TM monitor, which displays the intracranial pressure measurement (ICP). Pressure is measured independent of any fluid filled channel. There are two different types of Codman ICP Microsensors TM .

What is the function of the Codman ventricular pressure monitor?

It is inserted into the ventricle, has a drainage lumen to allow removal of CSF, and can be connected to a fluid filled pressure monitoring system to measure intraventricular pressure if a Codman Express TM monitor is unavailable.