Prevention of static bonding between medical device components
First Claim
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1. A kit comprising:
- an elongate carrier member formed of a first material and configured to be implanted in a recipient'"'"'s cochlea, and having a longitudinally-extending lumen;
a plurality of electrodes disposed on a distal end of said carrier member; and
an elongate stylet, configured to be removably inserted into said lumen, comprising;
a core formed of a second material that tends to form static bonds with said first material, and an exterior barrier layer covering at least a portion of said core, said exterior barrier layer being impermeable to said first and second materials.
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Abstract
A medical device such as a cochlear implant is disclosed, comprising: an elongate electrode carrier member formed of a first material and configured to be implanted in a recipient'"'"'s cochlea, and having a longitudinally-extending lumen; and an elongate stylet formed of a second material and adapted to be removably inserted into the lumen, comprising an exterior barrier layer configured to minimize static friction by inhibiting atomic bonding of the first and second materials.
49 Citations
38 Claims
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1. A kit comprising:
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an elongate carrier member formed of a first material and configured to be implanted in a recipient'"'"'s cochlea, and having a longitudinally-extending lumen;
a plurality of electrodes disposed on a distal end of said carrier member; and
an elongate stylet, configured to be removably inserted into said lumen, comprising;
a core formed of a second material that tends to form static bonds with said first material, and an exterior barrier layer covering at least a portion of said core, said exterior barrier layer being impermeable to said first and second materials. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A cochlear implant comprising:
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an elongate electrode carrier member formed of a first material and configured to be implanted in a recipient'"'"'s cochlea, and having a longitudinally-extending lumen; and
an elongate stylet formed of a second material and adapted to be removably inserted into said lumen, comprising an exterior barrier layer configured to minimize static friction by inhibiting atomic bonding of said first and second materials. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21)
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22. A method for manufacturing a stylet for use with an electrode carrier member of a cochlear implant, comprising:
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providing a vapour deposition chamber with an elevated support plate having at least one mounting hole disposed therein;
providing an elongate stylet core;
hanging one or more stylet cores through one of said at least one mounting hole in said elevated support plate;
vibrating said support plate; and
vapour depositing a polymer onto said stylet during said vibrating of said support plate to form an exterior barrier layer around at least a portion of said stylet. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35)
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36. A medical device comprising:
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a first component formed of a first material;
a second component formed of a second material that tends to atomically bond with said first material;
wherein at least one of either the first and second component has an exterior barrier layer impermeable to said first and second materials thereby impeding said bonding from occurring.
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37. The medical device of claim 40, wherein said barrier material is a polymeric material.
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38. The medical device of claim 40, wherein said polymeric material is Parylene™
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Specification