Flexible spine model and correction demonstration and test system implemented based on same

1 . A spine model for practicing a spine correction surgery, comprising hard structures, a soft elastic connecting material, a compression unit connected to one end of the spine model, and a dynamometer connected to an other end of the spine model,

wherein the hard structures simulate a layout of spine curvatures and are connected into a whole through the soft connecting material,

wherein the soft elastic connecting material between the hard structures is internally provided with expansion chambers, and expansion materials or expansion structures are arranged in the expansion chambers, and

wherein the spine model provides a whole visual process of a scoliosis correction demonstration for learners to help improve a learning effect and is adapted for being used to evaluate properties of a spine internal fixation system.

2 . The spine model according to claim 1 , wherein the hard structures have a vertebral body shape or a spine simplified simulation shape.

3 . The spine model according to claim 2 , wherein the spine model is used for scoliosis correction practices or correction demonstrations or correction system performance testing.

4 . A scoliosis correction demonstration model, comprising the spine model according to claim 2 , wherein a scoliosis correction system is installed on the spine model, and the hard structures of the spine model are provided with rod-like structures for indicating inclination angles of vertebral bodies.

5 . A scoliosis correction test system, comprising the scoliosis correction demonstration model of claim 4 , which is arranged on a correction system, wherein at least one end of the spine model is fixed, and a lateral curvature model is further provided with a torque application mechanism.

6 . The scoliosis correction test system according to claim 5 , wherein the spine model is arranged horizontally, two ends of the spine model are fixedly connected to a fixed frame respectively, and a middle part of the spine model is connected to the torque application mechanism.

7 . The scoliosis correction test system according to claim 6 , wherein a magnitude of force applied by the torque application mechanism is adjustable.

8 . The scoliosis correction test system according to claim 5 , wherein the spine model is arranged horizontally, one end of the spine model is fixedly connected to a fixed frame, the other end of the spine model is rotationally connected to the fixed frame, and the torque application mechanism is connected to the spine model close to the rotational connecting end.

9 . The scoliosis correction test system according to claim 5 , wherein the spine model is arranged vertically, the bottom end of the spine model is fixed, and the top end of the spine model is connected to the torque application mechanism.

10 . A spine model correction performance test model, comprising the spine model according to claim 2 , and further comprising force application mechanisms connected to one end of the spine model.

11 . A spine model correction performance test system, comprising the spine model according to claim 2 , and further comprising a compression unit connected to one end of the spine model and a dynamometer connected to the other end of the spine model.

12 . The spine model according to claim 1 , wherein the hard structures are blocky structures.

13 . The spine model according to claim 12 , wherein a plurality of through holes are formed in the blocky structures and distributed vertically or horizontally or in a grid form.

14 . The spine model according to claim 12 , wherein the blocky structures are externally provided with bulges, and the bulges are ring-shaped objects, column-shaped objects, spherical objects or irregularly shaped objects.

15 . The spine model according to claim 1 , wherein the blocky structures each comprise an upper blocky structure and a lower blocky structure, one of the upper blocky structure and the lower blocky structure being provided with a groove, the other one of the upper blocky structure and the lower blocky structure being provided with a boss matched with the groove, a space between the boss and the groove serves as the expansion chambers, and the expansion material or expansion structure is arranged in the expansion chambers.

16 . A spine model, comprising hard structures, a soft elastic connecting material, a compression unit connected to one end of the spine model, and a dynamometer connected to an other end of the spine model,

wherein the hard structures simulate a layout of spine curvatures and are connected into a whole through the soft connecting material;

wherein the hard structures are blocky structures;

wherein a plurality of through holes are formed in the blocky structures and distributed vertically or horizontally or in a grid form; and

wherein the spine model provides a whole visual process of a scoliosis correction demonstration for learners to help improve a learning effect and is adapted for being used to evaluate properties of a spine internal fixation system.

17 . The spine model according to claim 16 , wherein the spine model is used for scoliosis correction practices or correction demonstrations or correction system performance testing.

18 . A spine model, comprising hard structures and a soft elastic connecting material,

wherein the hard structures simulate a layout of spine curvatures and are connected into a whole through the soft connecting material;

wherein the hard structures are blocky structures; and

wherein the blocky structures are externally provided with bulges, and the bulges are ring-shaped objects, column-shaped objects, spherical objects or irregularly shaped objects.

19 . The spine model according to claim 18 , wherein the spine model is used for scoliosis correction practices or correction demonstrations or correction system performance testing.