Lower cervical spine anterior pedicle screw matching fixing device

Lower cervical spine anterior pedicle screw matching fixing device

  • CN 104,921,794 A
  • Filed: 07/13/2015
  • Published: 09/23/2015
  • Est. Priority Date: 07/13/2015
  • Status: Active Application
First Claim
Patent Images

1. the supporting fixture of lower cervical vertebra anterior vertebral pedicle screw, comprise the fixing head (1) and pedicle screw (2) that match, it is characterized in that:

  • described fixing head (1) is provided with at least two fixing holes (11) suitable with described pedicle screw (2), the all curved structure of cross section and longitudinal section of described fixing head (1), the axis of described pedicle screw (2) and the cross section of described fixing head (1) are the Angle of Heel of 15 °

    to 30 °

    , the axis of described pedicle screw (2) and the longitudinal section of described fixing head (1) are the Angle of Trim of 0 °

    to 15 °

    , described pedicle screw (2) is respectively arranged with suitable retaining washer (3), described fixing head (1), pedicle screw (2) and retaining washer (3) all adopt biodegradation material to make, increase the working place of the implantation of pedicle screw, be beneficial to the fixing of fixing head, when described pedicle screw (2) is implanted completely, the head of described pedicle screw (2) is positioned at described fixing hole (11).

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