Neurosurgical apparatus
AssigneeRenishaw (Ireland) Limited
InventorSteven S GILL
Life of this patent
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Abstract
A high-strength steel sheet and a method for manufacturing a high-strength steel sheet having excellent phosphatability and excellent corrosion resistance after electrodeposition coating has been performed, even in the case where the contents of Si and Mn are high. The method may comprise annealing a steal sheet by using a continuous annealing method, performing a heating process, controlling the maximum end-point temperature of a steel sheet in the annealing furnace, controlling the traveling time of the steel sheet, and controlling the dew point of the atmosphere.
Claims17
A cerebral shunt apparatus, comprising:
- a cerebral catheter device configured for draining fluid from the brain of a patient, comprising:
- an elongate tube configured for insertion into the brain of the patient to a vicinity of a desired target, and
- a head attached to the elongate tube, the head having a passageway therethrough in fluid communication with a lumen of the elongate tube and formations comprising ridges or a screw thread that are provided on the external surface of the head and that are configured for securing the head hi a hole formed in the skull of the patient,
- the head further comprising a first fluid connector portion that is attachable to an associated drainage catheter device thereby allowing fluid communication to be established between the lumen of the elongate tube and the drainage catheter device via the passageway of the head;
- and
- the drainage catheter device comprising a length of flexible drainage tubing and having a second fluid connector portion configured to engage the first fluid connector portion of the cerebral catheter device to provide fluid communication between the drainage catheter device and the elongate tube via the passageway through the head.
A method of inserting a cerebral catheter device comprising an elongate tube and a head into the brain of a subject, the method comprising the steps of:
- inserting the elongate tube to a vicinity of a desired target through a burr hole formed in the skull of the subject,
- securing the head in the burr hole,
- attaching a drainage catheter to the head to place the drainage catheter in fluid communication with the lumen of the elongate tube, and
- collecting fluid via the drainage catheter and the lumen of the elongate tube.
Dependencies are inferred from the claim text.