Catheter
First Claim
Patent Images
1. An optical instrument for use in surgery, the instrument comprising a tube having at least one optical fibre arranged within a bore region, a wall of the tube comprising a rigid layer formed substantially from a ceramic selected from zirconium dioxide or aluminium oxide.
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Abstract
The invention relates to rigid surgical devices formed from rigid ceramics such as zirconium dioxide. In particular, the invention relates to a neurosurgical catheter formed from extruded zirconium dioxide. The invention also relates to an advancement means for advancing or retracting such a device along an axis of insertion into a patient.
101 Citations
30 Claims
- 1. An optical instrument for use in surgery, the instrument comprising a tube having at least one optical fibre arranged within a bore region, a wall of the tube comprising a rigid layer formed substantially from a ceramic selected from zirconium dioxide or aluminium oxide.
- 9. A surgical probe comprising a tube terminated at a distal end by a tip, at least a wall of the tube comprising a rigid layer formed substantially from a ceramic selected from zirconium dioxide or aluminium oxide, the probe further comprising a first electrode housed within a bore region of the tube and positioned towards the distal end.
- 13. A catheter for inserting into a subject comprising a tube, the wall of the tube comprising a rigid layer formed substantially from a ceramic selected from zirconium dioxide or aluminium oxide.
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23. A biopsy needle formed from or comprising rigid zirconium dioxide or aluminium oxide.
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24. A surgical implant formed from or comprising rigid zirconium dioxide or aluminium oxide.
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25. A surgical electrode comprising a rigid rod or tube made from or comprising a rigid layer of zirconium dioxide or aluminium oxide and comprising an electrically conducting material extending along the length of the tube or rod and being exposed or electrically connected to an exposed area on the surface of the rod or tube.
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26. A method of manufacturing an implantable surgical device comprises the steps of extruding a rigid tube or rod of zirconium dioxide or aluminium oxide or coating a tube or rod with a rigid layer of zirconium dioxide or aluminium oxide.
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29. An implantable surgical device, comprising an advancement means for retracting or advancing the device or a portion of the device along an axis of insertion into a subject.
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30. An advancement means for retracting or advancing at least a portion of an implantable surgical device along an axis of insertion into a subject.
Specification