Laser welding method of electrode collar in artificial cochlea and platiniridium wire

A technology of laser welding and electrode ring, which is applied in the direction of laser welding equipment, welding equipment, welding equipment, etc., can solve the problem of small electrode ring, and achieve the effect of fast welding speed, high welding fastness and small welding spots

Active Publication Date: 2011-04-20
SHANGHAI LISTENT MEDICAL TECH CO LTD
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Problems solved by technology

[0003] However, due to the small size of the electrode ring, the platinum iridium wire is also very thin, and the surface of the platinum iridium wire has an insulating coating, the conventional welding method cannot complete the welding of the platinum electrode ring and the platinum iridium wire well.

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  • Laser welding method of electrode collar in artificial cochlea and platiniridium wire
  • Laser welding method of electrode collar in artificial cochlea and platiniridium wire
  • Laser welding method of electrode collar in artificial cochlea and platiniridium wire

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Embodiment Construction

[0015] The present invention will be further described in detail below in conjunction with the drawings and specific embodiments:

[0016] It can be seen from Fig. 1 that: the platinum iridium wire 20, the insulating coating 21, the laser shot direction 30, and the solder joint 31 in the figure.

[0017] It can be seen from Figure 2, Figure 3, and Figure 4 that the present invention is implemented through the following steps:

[0018] Fix the jig as a whole on the laser welding workbench, put a platinum ring 10 into the positioning hole 200 of the electrode ring positioning plate 2, the platinum iridium wire 20 passes through the middle of the platinum ring 10, adjust the upper plate 1 of the welding jig, And fix the adjustment slider 3 to fix the angle between the upper plate 1 of the welding jig and the bottom plate 6 of the welding jig;

[0019] Make the laser weld the platinum ring 10 and the platinum iridium wire 20 together at a reasonable incident angle; the laser uses YAG seri...

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Abstract

The invention relates to a method for welding electrode retaining collars and platinum iridium wires in artificial cochleas by laser, which is realized by the following steps: integrally fixing a tool on a worktable of laser welding, putting an electrode ring into a positioning hole of a positioning plate of the electrode retaining collar, threading the platinum iridium wire through the center of the electrode ring, adjusting an upper plate of the welding tool, and fixing an adjusting slide block to make the angle between the upper plate of the welding tool and the base plate of the welding tool fixed; making laser weld the electrode ring together with the platinum iridium wire at a proper angle of incidence; adopting the laser of YAG series for laser spot welding; and putting the remained positioning holes on the positioning plate of the electrode retaining collar into the electrode ring, sequentially threading the platinum iridium wires through the electrode ring, controlling the level rectilinear movement of a laser worktable to ensure the laser aims at welding points of each electrode ring and platinum iridium wire, and finishing the welding sequentially. In the invention, the method has the advantages of small welding spots without post treatment, no damage to the coatings of the platinum iridium wire in the non-welding position when welding, fast welding, no other impurities pollution of weld spots, and high welding fastness.

Description

Technical field [0001] The invention relates to a cochlear implant, in particular to a method for welding an electrode ring and platinum iridium wire in the artificial cochlea. Background technique [0002] The cochlear implant device consists of two parts: a speech processor (external device) and a cochlear implant device. In the entire cochlear implant device, the cochlear implant device is the most critical part. Since the electrode directly stimulates the auditory nerve, the welding quality of the electrode ring and the platinum-iridium wire directly affects the product quality of the implant device. [0003] However, due to the small size of the electrode ring, the platinum-iridium wire is also very thin, and the surface of the platinum-iridium wire has an insulating coating, the conventional welding method cannot well complete the welding of the platinum-gold electrode ring and the platinum-iridium wire. Summary of the invention [0004] The technical problem to be solved by ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K26/42B23K37/04B23K26/20B23K26/08B23K26/22
Inventor 王正敏王澄孙增军张伟贺光明徐世帅
Owner SHANGHAI LISTENT MEDICAL TECH CO LTD
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