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CN-224220212-U - Posterior spine fixing device

CN224220212UCN 224220212 UCN224220212 UCN 224220212UCN-224220212-U

Abstract

The utility model discloses a posterior spine fixing device, which relates to the technical field of medical equipment and comprises a fixing assembly, wherein a connecting assembly is arranged on the side face of the fixing assembly and comprises an arc-shaped connecting plate, a mounting frame is arranged on the side face of the arc-shaped connecting plate, a limiting rod is arranged in the middle of the mounting frame, a connecting rod is arranged outside the limiting rod, a shrinkage cavity is arranged in the middle of the connecting rod, an extension rod is arranged in the shrinkage cavity, a positioning bolt is arranged at the top of one end of the connecting rod, and a hexagonal groove is formed in the top of the positioning bolt. According to the utility model, the distance between the two fixing rods is adjusted through the connecting assembly, the two fixing rods are connected through the extending rods inserted into the connecting rod, the extending rods are inserted into the connecting rod, the distance between the two fixing rods is adjusted, and the use stability of the fixing rods is improved.

Inventors

  • NI WEIYANG
  • XUE BING
  • XU JIANPING

Assignees

  • 江苏金鹿集团医疗器械有限公司

Dates

Publication Date
20260512
Application Date
20250228

Claims (6)

  1. 1. The posterior spine fixing device comprises a fixing component (1) and is characterized in that a connecting component (8) is arranged on the side surface of the fixing component (1); The fixing assembly (1) comprises a fixing rod (2), a supporting seat (5) is arranged outside the fixing rod (2), a positioning screw (3) is arranged in the middle of the bottom of the supporting seat (5), a nut (4) is arranged at the top of the positioning screw (3), a plug hole (6) is arranged in the middle of the side wall of the supporting seat (5), and a mounting sliding groove (7) is formed in the side face of the supporting seat (5); Coupling assembling (8) are including arc connecting plate (9), the side of arc connecting plate (9) is provided with installing frame (10), the centre of installing frame (10) is provided with gag lever post (11), and the outside of gag lever post (11) is provided with connecting rod (12), the centre of connecting rod (12) is provided with shrink chamber (13), and the inside of shrink chamber (13) is provided with extension rod (14), the one end top of connecting rod (12) is provided with positioning bolt (16), and the top of positioning bolt (16) is provided with hexagon recess (15).
  2. 2. The posterior spine fixing device according to claim 1, wherein the support base (5) is sleeved outside the fixing rod (2), the inserting holes (6) are formed in the middle of the side wall of the support base (5), the inserting holes (6) penetrate through two sides of the support base (5), the fixing rod (2) is inserted into the inserting holes (6) in the middle of the support base (5), and the fixing rod (2) penetrates through two sides of the support base (5).
  3. 3. The posterior spine fixing device according to claim 2, wherein the bottom of the supporting seat (5) is connected with a positioning screw (3) through threads, the positioning screw (3) penetrates through the bottom of the supporting seat (5), a nut (4) is fixedly connected to the top of the positioning screw (3), the top of the nut (4) is contacted with the inner wall of the bottom of the supporting seat (5), the nut (4) is located below the fixing rod (2), the side surface of the supporting seat (5) is provided with two mounting sliding grooves (7), the two mounting sliding grooves (7) are symmetrically distributed on two sides of the supporting seat (5) respectively, and the mounting sliding grooves (7) are located on the side surface of the fixing rod (2).
  4. 4. The posterior spinal fixation device according to claim 3, wherein the inside of the installation chute (7) is slidably connected with an installation frame (10), one side of the installation frame (10) close to the inside of the support seat (5) is fixedly connected with an arc-shaped connection plate (9), the arc-shaped connection plate (9) is slidably connected to the inside of the support seat (5), the outer wall of the arc-shaped connection plate (9) is slidably connected with the inner wall of the support seat (5), and a groove is formed in the middle of one side of the installation frame (10) far away from the arc-shaped connection plate (9).
  5. 5. The posterior spinal fixation device according to claim 4, wherein the connecting rod (12) is inserted into the groove on the side surface of the mounting frame (10), one end, close to the mounting frame (10), of the connecting rod (12) is provided with a limiting rod (11), the limiting rod (11) penetrates through the connecting rod (12), the top end and the bottom end of the limiting rod (11) are connected to the top and the bottom of the mounting frame (10), an extension rod (14) is connected in a sliding manner in the middle of the connecting rod (12), the two mounting frames (10) are symmetrically distributed at one end, far away from the extension rod (14), of the connecting rod (12) and one end, far away from the connecting rod (12), of the extension rod (14), of the connecting rod (12), and the limiting rod (11) is arranged corresponding to the mounting frame (10).
  6. 6. The posterior spinal fixation device according to claim 5, wherein the connecting rod (12) is provided with a contraction cavity (13) in the middle of one end far away from the mounting frame (10), the contraction cavity (13) penetrates through the connecting rod (12) and is far away from the middle of one end of the mounting frame (10), the extension rod (14) is slidably connected in the contraction cavity (13), one end top of the connecting rod (12) far away from the mounting frame (10) is connected with a positioning bolt (16) through threads, the bottom end of the positioning bolt (16) penetrates through the connecting rod (12) and is connected with the extension rod (14), and a hexagonal groove (15) is formed in the middle of the top of the positioning bolt (16).

Description

Posterior spine fixing device Technical Field The utility model relates to the technical field of medical equipment, in particular to a posterior spine fixing device. Background The number of the spines of the child at birth is 32-33, the adult spine is formed by connecting 26 vertebrae by ligaments, joints and intervertebral discs, the upper end of the spine supports the skull, the lower hip bone, the middle rib is attached to the spine and is used as the back wall of the chest, the abdominal cavity and the pelvic cavity, the spine has the functions of supporting the trunk, protecting the viscera, protecting the spinal cord and performing exercise, a longitudinal spinal tube is formed inside the spine from top to bottom, and the spinal cord is arranged inside the spine. The conventional posterior multi-point fixing device for the spine mainly comprises a nail inserted into the bone of the spine, and a connecting rod for connecting the nail to fix the nail, wherein the nails positioned on different sides of the spine are not fixedly connected with each other when the fixation is performed, and when the fixation time is too long, the deviation of the fixation position is possibly caused along with the daily activities of the person to be fixed, so that the posterior spine fixing device is needed to solve the problems. Disclosure of utility model The utility model mainly aims to provide a posterior spine fixing device which can effectively solve the problems in the background technology. In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: A posterior spine fixation device comprises a fixation assembly, wherein a connection assembly is arranged on the side surface of the fixation assembly; The fixing assembly comprises a fixing rod, a supporting seat is arranged outside the fixing rod, a positioning screw is arranged in the middle of the bottom of the supporting seat, a nut is arranged at the top of the positioning screw, a plug hole is arranged in the middle of the side wall of the supporting seat, and a mounting sliding groove is arranged on the side face of the supporting seat; The connecting assembly comprises an arc-shaped connecting plate, a mounting frame is arranged on the side face of the arc-shaped connecting plate, a limiting rod is arranged in the middle of the mounting frame, a connecting rod is arranged outside the limiting rod, a shrinkage cavity is arranged in the middle of the connecting rod, an extension rod is arranged in the shrinkage cavity, a positioning bolt is arranged at the top of one end of the connecting rod, and a hexagonal groove is formed in the top of the positioning bolt. Preferably, the outside cover of dead lever is equipped with the supporting seat, and has seted up the spliced eye in the middle of the lateral wall of supporting seat, the spliced eye runs through the both sides of supporting seat, the dead lever is pegged graft in the inside of the spliced eye in the middle of the supporting seat, and the dead lever runs through the both sides of supporting seat. Preferably, the bottom of supporting seat has set screw through threaded connection, and set screw runs through the bottom of supporting seat, the top fixedly connected with nut of set screw, and the top of nut contacts with the bottom inner wall of supporting seat, the nut is located the dead lever below, the installation spout has been seted up to the side of supporting seat, and installs the spout and have two, and the symmetry distributes respectively in the both sides of supporting seat, the installation spout is located the side of dead lever. Preferably, the inside sliding connection of installation spout has the installing frame, and the installing frame is close to the inside one side fixedly connected with arc connecting plate of supporting seat, arc connecting plate sliding connection is in the inside of supporting seat, the outer wall of arc connecting plate and the inner wall sliding connection of supporting seat, the installing frame is kept away from the middle recess of seting up of one side of arc connecting plate. Preferably, the inside grafting of recess of installing frame side has the connecting rod, and the connecting rod is close to the one end of installing frame and install the gag lever post, the gag lever post runs through the connecting rod, and the top and the bottom of gag lever post are connected to the top and the bottom of installing frame, the intermediate sliding connection of connecting rod has the extension rod, the installing frame has two, and the one end that the extension rod was kept away from at the connecting rod and the one end that the extension rod kept away from the connecting rod are symmetrical distribution respectively, and the gag lever post corresponds the setting with the installing frame. Preferably, the connecting rod is kept away from the shrinkage cavity in the middle of the one end of installing the frame,