Implantable medical device and system with structure for preventing screw-out of screws

An implantable medical and screw technology, which is applied in the field of implantable medical equipment and implantable medical systems, can solve the problem of high possibility of wrong operation, and achieve the effect of reducing function damage.

Active Publication Date: 2014-07-02
SCENERAY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the possibility of erroneous operation caused by this human factor is still relatively large

Method used

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  • Implantable medical device and system with structure for preventing screw-out of screws
  • Implantable medical device and system with structure for preventing screw-out of screws
  • Implantable medical device and system with structure for preventing screw-out of screws

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Embodiment Construction

[0029] Below in conjunction with accompanying drawing, the present invention is described in further detail:

[0030] as attached Figure 2 to Figure 7 As shown, taking an implantable neurostimulator system as an example, an implanted neurostimulator 1 with a screw-proof structure includes a housing 11, a battery and a circuit board arranged in the housing 11 (not shown in the figure). Shown), the connection head 12 that is sealingly connected with the housing 11. The connection head 12 includes a plurality of connection blocks 121, a wireless communication antenna (not shown) and a sealing filler 122 arranged axially and electrically connected to the circuit board. The connection hole 123 , the connection block 121 is radially provided with a screw hole 124 communicating with the connection hole 123 .

[0031] In this embodiment, the extension wire plug of the implantable electrical nerve stimulator includes two parallel cylindrical plug parts, and each plug part has four c...

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Abstract

The invention discloses an implantable medical device with a structure for preventing screw-out of screws. The device includes a shell, a battery and a circuit board both arranged in the shell, and a connecting head hermetically connected with the shell. The connecting head includes a plurality of connecting blocks, a wireless communication antenna and a sealing filler. The connecting blocks are radially provided with screw holes which are in communication with connecting holes. Screws for pressing connection of conductive rings on line traps are arranged in the screw holes. A screw thread on an end part, close to a corresponding water seal part, of each screw, is filled with the filler covered by threads. When a doctor reversely operates, the screws only apply a downward push-out force to the water seal parts and do not apply any upward spiral feeding force. The lengths of joint cuttings arranged in the water seal parts are smaller than the outer diameters of the corresponding screws so that even if the screws are completely screwed out of the connecting blocks, the screws do not pass through the joint cuttings in the water seal parts. Therefore, the probability that the water seal parts are damaged in function because of misoperation of the doctor is reduced. The invention also discloses a medical system including the implantable medical device.

Description

technical field [0001] The invention relates to an implantable medical system, in particular to an implantable medical device and an implantable medical system with a screw-out preventing structure. Background technique [0002] Implantable medical systems usually include implantable electrical nerve stimulation systems (including deep brain electrical stimulation DBS, implantable cerebral cortex stimulation CNS, implantable spinal cord electrical stimulation SCS, implantable sacral nerve electrical stimulation SNS, implantable Vagus nerve stimulation VNS, etc.), implantable cardiac electrical stimulation system (commonly known as cardiac pacemaker), implantable drug infusion system (IDDS), etc. [0003] Taking the implantable electrical nerve stimulation system as an example, it mainly includes a pulse generator implanted in the body, electrodes and a controller outside the body. Among them, the pulse generator is connected to the electrode through an extension wire, so th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61N1/372A61M31/00
Inventor 周春明
Owner SCENERAY
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