ICP monitoring is an extremely important part of the neurosurgical care for both acute events such as traumatic brain injury (TBI), subarachnoid haemorrhage and
intracerebral haematoma and chronic diseases such as hydrocephalus or benign intracranial hypertension. Elevated ICP causes headache, nausea, and projectile vomiting. If left untreated, sustained elevated ICP leads to irreversible brain damage and death, sometimes within a matter of hours.
Invasive ICP Monitoring
Invasive ICP monitoring is currently the only option and gold standard for accurate ICP measurement.
However, the percutaneous devices have major issues of
1. Significant risks of serious, potentially life-threatening, transcutaneous infection
2. Sensor dirft
3. Patient tethered to the bed/monitor
4. Prolonged hospital stay and increased healthcare expenditure
Reco Medical's New Generation Wireless ICP Monitoring
Wireless ICP monitoring has long been a desired goal for ICP management considering the advantages of eliminating the risk of transcutaneous infection and restriction of patient mobility.
Reco's wireless system is based on quartz Surface Acoustic Wave (SAW) resonators of high Q-factor operating at radio frequency bands. These resonators are fabricated on crystalline quartz substrates and are inherently stable minimising long-term sensor drift. High Q-factor and high operating frequency of the resonators allow for small implantable sensor dimension and external electronic reader, offering truly wearable continuous wireless sensing. The smartphone-sized battery-powered reader's wireless interfaces allow real time streaming of ICP data to clinicians for decentralised patient monitoring, providing security to patients and cost-saving to the healthcare system.
Reco Medical wireless ICP monitoring system prototype verification.
Hydrocephalus and Treatment
Hydrocephalus is an abnormal buildup of cerebrospinal fluid (CSF) in the ventricles (cavities) deep within the brain. The excess fluid leads to increased pressure on the brain, resulting symptoms such as headache, nausea, gait disturbance, urinary incontinence and dementia.
Current Treatment Method
Babies who are born with hydrocephalus (congenital) and children or adults who develop it (acquired hydrocephalus) usually need surgical insertion of a drainage system, called a shunt, to reduce the pressure on their brain. Shunt consists of a long flexible tube with a valve that keeps fluid from the brain flowing into abdomen at the proper rate.
Unmet Patients Need
Although such shunts are available and used since the 1960s, they have very high complication rate within the first two years after implantation. Data from the UK Shunt Registry shows 41,036 procedures in 26,545 patients between 2004 and 2013 (about half is revision). The most common complications are infections, over drainage and obstructions. Diagnosing complication is challenging and neurosurgeons and patients are frustrated about shunt because of
Frequent examination and hospital admission not only negatively affect quality of life of patients and family members but also increase health care burden.
Reco Medical's miniaturized pressure sensor can be fitted into the tip of the existing VP shunt. There will be only small modification of shunt to add neglectable cost of sensor, but adding great value. Key benefits include