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Fixator for brain electrode lead

An electrode lead and fixing device technology, which is applied to internal electrodes, head electrodes, electrotherapy and other directions, can solve the problems of high height of the fixing device, deviation of the lead in the horizontal and vertical directions, patient discomfort, etc., and achieves firmness and accuracy. The effect of positioning and avoiding target offset

Active Publication Date: 2012-07-04
景昱医疗科技(苏州)股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, when the doctor inserts the lead needle during the operation and after the lead needle is removed, because the brain electrode wire is suspended and not fixed, the doctor directly presses the lead wire to the skull with the skull cover after taking out the guide wire in the lead wire. At this time, it is easy to cause the horizontal and vertical deviation of the wire, so that the position of the electrode insertion deviates from the target point, making the operation complicated and the treatment effect unsatisfactory
And, because a layer of skull cap is added on the patient's scalp, the height of the entire fixing device is too high, which easily causes discomfort to the patient and is not attractive in appearance.

Method used

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  • Fixator for brain electrode lead
  • Fixator for brain electrode lead
  • Fixator for brain electrode lead

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0039] as attached Figures 1 to 5 As shown, a brain electrode wire fixing device 10 includes: a cranial hole ring 20, the cranial hole ring 20 includes a cranial hole joint part 201 for fixing the cranial hole ring on the cranial hole, and the cranial hole joint The inner wall of the part 201 forms an electrode hole 202 for passing through the brain electrode lead; the cranial hole plug 30 has at least one groove 301 for passing through and clamping and fixing the brain electrode lead, so The cranial hole plug 301 is disposed in the electrode hole 202 for closing the electrode hole 202 .

[0040] In this embodiment, the groove 301 is a through groove through which the doctor inserts the lead needle into the patient's brain, which is convenient for use. Certainly, the grooves described in other implementation manners may also be different shallow grooves or deep grooves. as attached Image 6 and Figure 7 As shown in , when in use, the doctor only needs to pierce different...

Embodiment approach 2

[0048] as attached Figure 8 to Figure 11 As shown in , the difference from the first embodiment is that one end of the through groove 301 on the skull plug 30 extends to the edge of the outer wall of the cranial hole plug 30 to form a through side groove, so the method of use is also the same as that in the first embodiment above. The method of use is different.

[0049] When in use, the doctor first inserts the skull plug 30 into the opening of the patient's skull. After the fit is firm, the doctor inserts the lead needle into place. Interpolate to a precomputed depth. After the doctor adjusts the test, if Figure 7 As shown, the groove 301 of the skull plug 30 is separated by hand to both sides to make a gap, and the doctor clamps the lead needle containing the electrode wires in the correct position inside the skull plug 30, and then aligns it with the inner protrusion of the skull ring 20. Platform 206 is pressed down with hands or special tools, so that the skull plug...

Embodiment approach 3

[0051] as attached Figure 12 As shown, the groove 301 of the skull plug 30 in this embodiment is not an inline straight edge groove but a curved edge edge groove, and the doctor's operation steps are basically the same as those in the second embodiment. When the skull plug 30 is inserted into the electrode hole 202 of the skull ring 20, through the cooperation between the groove 303 on the skull plug 30 and the boss 206 on the electrode hole 20, the two are firmly matched and fixed, and the curve passes through the edge The slot makes it easier for the doctor to judge whether the plug is in place.

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Abstract

The invention discloses a fixator for a brain electrode lead, which comprises a cranial hole ring and a cranial hole plug. The cranial hole ring comprises a cranial hole junction which is used for fastening the cranial hole ring to a cranial hole, and an electrode hole for passage of the brain electrode lead is formed on the inner wall of the cranial hole junction. The cranial hole plug is provided with at least one slot for passage and fixation of the brain electrode lead, and the cranial hole plug is disposed in the electrode hole and used for closing the electrode hole. Compared with the prior art, the fixator for the brain electrode lead has the advantages that when the electrode lead reaches an assigned target by the aid of a lead needle, a surgeon can pull out the lead needle, and accordingly, the cranial hole plug immediately holds the electrode lead to avoid horizontal and vertical displacement of the electrode lead; the electrode lead is firmly and accurately positioned at the assigned target position so that target shift is avoided when the surgeon closes the cranial ring; and the cranial hole plug is not higher than the cranial ring so that discomfort of a patient is avoided and attractiveness of the fixator is unaffected.

Description

technical field [0001] The invention relates to the field of implantable medical systems, in particular to a fixing device for fixing brain electrode wires or other catheters on the skull of the implantable medical system. Background technique [0002] Implantable medical systems usually include implantable nerve electrical stimulation systems, implantable cardiac electrical stimulation systems (commonly known as cardiac pacemakers), and implantable drug infusion systems. Among them, implantable electrical nerve stimulation systems include deep brain electrical stimulation DBS, implantable cerebral cortex electrical stimulation CNS, implantable spinal cord electrical stimulation SCS, implantable sacral nerve electrical stimulation SNS, implantable vagus nerve electrical stimulation VNS, etc. [0003] Taking the implanted electrical nerve stimulation system as an example, it mainly includes a pulse generator implanted in the body, electrodes and external control devices. Amo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61N1/375
CPCA61N1/0539
Inventor 不公告发明人
Owner 景昱医疗科技(苏州)股份有限公司
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