Supporting device for orthopedics department

Abstract

The utility model discloses an orthopedic supporting device, and relates to the technical field of orthopedic implants. The flexible supporting mechanism comprises a columnar supporting component, wherein a cross-shaped template is assembled at each of the two ends of the supporting component; a connecting component is connected between the two cross-shaped templates; the connecting component comprises a first connecting piece located in the middle, the two ends of the first connecting piece are telescopically connected with second connecting pieces, the ends of the second connecting pieces are connected with third connecting pieces, and the two third connecting pieces at the two ends of the connecting component are rotationally installed at the ends of the two cross-shaped formworks respectively. The flexible supporting mechanism composed of the cross-shaped template, the connecting component and the supporting component is adopted to replace an existing pedicle screw system for implantation, twisting, compression and bending can be carried out in the using process, and then loss of the motion range of the fusion segment is reduced.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of orthopedic implants, in particular to a kind of orthopedic support device. BACKGROUND

[0002] When intervertebral disc degeneration or facet joint subluxation or degeneration occurs, it will lead to loss of intervertebral height, instability of posterior structure, and thus cause intervertebral foramen and vertebral foramen stenosis; and such stenosis will compress the spinal nerve or nerve root, causing symptoms such as back and leg pain, numbness, and seriously affecting the quality of life of patients.

[0003] The most important method known to solve this problem is to perform interbody fusion, through which the intervertebral height can be maintained and the pressure on the nerve structure can be reduced. At present, a pedicle screw system (the connecting rod in the system is usually a rigid metal connecting rod), a fusion cage and various plate-like devices are mainly used for rigid fixation. However, the relative fixation of the fusion segment will cause stress to concentrate on the adjacent vertebral bodies, especially the load of adjacent vertebral bodies will be increased. At the same time, the loss of activity of the fusion segment will cause the range of motion of adjacent segments to increase to compensate for the activity of the fusion segment, thereby causing abnormal biomechanical environment of adjacent segments, and the change of biomechanical environment will eventually lead to degeneration of adjacent segments. Spinal surgeons and researchers have found that the existing pedicle screw system cannot move after implantation. Although it increases the stability of the lumbar spine, it also changes the biomechanical environment of the lumbar spine, thereby increasing the possibility of adjacent segment degeneration. SUMMARY

[0004] The purpose of the present application is to provide an orthopedic support device, which is composed of a "cross" template, a connecting member and a support member, and uses the flexible support mechanism to replace the existing pedicle screw system for implantation, so as to realize the functions of torsion, compression and bending in use, and solve the problem that the pedicle screw system cannot move after implantation as proposed in the background art.

[0005] To solve the above technical problems, the present application is realized by the following technical scheme:

[0006] The present application is an orthopedic support device, which comprises a flexible support mechanism, the flexible support mechanism comprises a columnar support member, and two "cross" templates are respectively assembled at both ends of the support member; a connecting member is connected between the two "cross" templates; the connecting member comprises a first connecting piece located in the middle, two second connecting pieces are telescopically connected at both ends of the first connecting piece, and a third connecting piece is connected at the end of each second connecting piece; the two third connecting pieces at both ends of the connecting member are respectively rotatably installed at the end of each "cross" template; a through hole is arranged in the middle of each "cross" template, and a movable column is movably penetrated through the through hole at both ends of the support member.

[0007] Further, the first connecting piece comprises a flexible section in the middle, both ends of the flexible section are connected with rigid sleeves respectively, one end of the second connecting piece is inserted into the rigid sleeve, and a spring is connected between the second connecting piece and the rigid sleeve.

[0008] Further, the second connecting piece and the rigid sleeve are both circular in section, and the second connecting piece can rotate around the rigid sleeve.

[0009] Further, the third connecting piece is an arc-shaped plate with elasticity, and the end of the arc-shaped plate is provided with an abutting portion abutting against the "cross-shaped" template.

[0010] Further, the abutting portion is provided with a counterbore A, and the end of the "cross-shaped" template is provided with a counterbore B matched with the counterbore A; during installation, a T-shaped pin shaft is controlled to be sequentially inserted into the counterbores A and B, and then a limiting ring is installed at the end of the T-shaped pin shaft in an interference fit, and the limiting ring is located in the counterbore B.

[0011] Further, the four ends of the "cross-shaped" template are all provided with protruding portions protruding upwards, and one side of the protruding portion is connected with a V-shaped elastic pressing plate; the abutting portion extends into the space formed by the V-shaped elastic pressing plate and the "cross-shaped" template, and both sides of the abutting portion are in contact with the V-shaped elastic pressing plate and the "cross-shaped" template respectively.

[0012] Further, a rectangular groove is arranged on the "cross-shaped" template directly below the V-shaped elastic pressing plate, and an opening A is arranged near one end of the protruding portion; a cylinder is arranged on one side of the abutting portion close to the "cross-shaped" template.

[0013] Further, the depth of the rectangular groove is H1, the cylinder slides along the length direction of the rectangular groove, and the length of the cylinder is H2, and H2>H1.

[0014] Further, an opening B is arranged on the side of the "cross-shaped" template away from the V-shaped elastic pressing plate, the opening A and the opening B are concentric structures and are connected, and the diameter of the opening B is larger than that of the opening A.

[0015] Further, the third connecting piece is a columnar structure, one side of the third connecting piece is provided with a rotating shaft, and the end surface of the "cross-shaped" template is provided with an axle hole matched with the rotating shaft; the outer circumferential side wall of the rotating shaft is provided with a convex ring, and the inner wall of the axle hole is provided with an annular mounting groove matched with the convex ring; during assembly, the "cross-shaped" template is controlled to be heated to expand, then the rotating shaft is controlled to be inserted into the axle hole until the convex ring is assembled into the annular mounting groove, and then cooling is performed.

[0016] The present application has the following beneficial effects:

[0017] This invention utilizes a flexible support mechanism composed of a cross-shaped template, connecting components, and supporting components. This flexible support mechanism replaces the existing pedicle screw system for insertion, enabling twisting, compression, and bending during use, thereby reducing the loss of mobility in the fused segment.

[0018] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the flexible support mechanism structure of the present invention. Figure 1 ;

[0021] Figure 2 This is a schematic diagram of the mating structure of the rotating shaft and shaft hole of the present invention;

[0022] Figure 3 This is a schematic diagram of the flexible support mechanism structure of the present invention. Figure 2 ;

[0023] Figure 4 For the present invention Figure 3 Main view;

[0024] Figure 5 This is a schematic diagram of the flexible support mechanism structure of the present invention. Figure 3 ;

[0025] Figure 6 For the present invention Figure 4 Main view;

[0026] Figure 7 For the present invention Figure 6 Sectional view at point AA;

[0027] Figure 8 For the present invention Figure 7 Enlarged view of a portion of point A in the middle. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] In the description of the present application, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "periphery" and the like indicate the orientation or positional relationship, only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the components or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0030] The present application is a kind of orthopedic support device, which specifically comprises a flexible support mechanism, and the two ends of the flexible support mechanism are respectively provided with connecting ends, when it is used in multi-segment lumbar surgery, the overall length of the support device can be the length of one or more lumbar segments, and the two connecting ends at the two ends are respectively connected to a lumbar segment.

[0031] Specifically, as shown in Figures 5-7 The flexible support mechanism provided by the present application comprises a columnar support member 3 and two "cross" shaped templates 1, the middle part of the "cross" shaped template 1 is provided with a through hole 10, the two ends of the support member 3 are respectively provided with movable columns 31 which movably penetrate the through hole 10, thereby realizing the installation of a "cross" shaped template 1 at the two ends of the support member 3, and four groups of connecting members 2 are connected between the two "cross" shaped templates 1, and the connecting member 2 comprises a first connecting piece 20 located in the middle, the first connecting piece 20 comprises a flexible section 200 located in the middle, the two ends of the flexible section 200 are respectively connected with a rigid sleeve 201, a spring 202 is connected with a second connecting piece 21 in the rigid sleeve 201, the end of the second connecting piece 21 is connected with a third connecting piece 22, and the two third connecting pieces 22 located at the two ends of the same connecting member 2 are respectively rotatably installed at the ends of the two "cross" shaped templates 1, thereby the flexible support mechanism formed by the above-mentioned detachable components can realize the mutual torsion of the two "cross" shaped templates 1, that is, when one "cross" shaped template 1 rotates counterclockwise, the other "cross" shaped template 1 rotates clockwise; at the same time, the two "cross" shaped templates 1 are controlled to move close to each other. At the same time, when the support member 3 is a flexible rubber rod, the overall flexible support mechanism can be bent at this time, thereby the flexible support mechanism provided by the present application can realize torsion, compression and bending, thereby it can maintain the human spine to move within a certain range of motion after being placed in the surgery, it can not only be applied to multi-segment lumbar surgery, but also be used in the fields of constructing humanoid robot spine and orthopedic back support; and the flexible support mechanism provided by the present application can restore the intervertebral height, reduce the pressure on the spinal nerves, provide spinal stability, maintain the normal center of rotation of the spine, provide post-treatment micro-motion, and reduce the possibility of adjacent segment degeneration; at the same time, the flexible support mechanism provided by the present application has good mechanical properties and fatigue properties, thereby the safety and reliability of the instrument implanted in the human body can be ensured.

[0032] The spring 202 is used to control the connection between the rigid sleeve 201 and the second connecting member 21, and the cross sections of the second connecting member 21 and the rigid sleeve 201 are both circular, so that the second connecting member 21 can rotate around the rigid sleeve 201 in a small range after installation, and the second connecting member 21 can also extend and retract relative to the rigid sleeve 201.

[0033] In order to facilitate assembly, three specific structures of the connecting member 2 and the connection relationship between the connecting member 2 and the "cross" shaped template 1 are provided as follows.

[0034] As Figures 1-2 , the first kind: the third connecting member 22 is a rectangular column structure, one side of which is provided with a rotating shaft 220, and the end surface of the "cross" shaped template 1 is provided with a shaft hole 100 matched with the rotating shaft 220; the outer circumferential side wall of the rotating shaft 220 is provided with a convex ring 221, and the inner wall of the shaft hole 100 is provided with an annular mounting groove 101 matched with the convex ring 221; during assembly, the "cross" shaped template 1 is controlled to be heated to expand, then the rotating shaft 220 is controlled to be inserted into the shaft hole 100 until the convex ring 221 is assembled into the annular mounting groove 101, and then cooling is performed.

[0035] As Figures 3-4 , the second kind: the third connecting member 22 is an arc-shaped plate with elasticity, the end of the arc-shaped plate is provided with an abutting portion 32 abutting against the "cross" shaped template 1, the abutting portion 32 is provided with a counterbore A, and the end of the "cross" shaped template 1 is provided with a counterbore B11 matched with the counterbore A; during installation, a T-shaped pin shaft 12 is controlled to be sequentially penetrated through the counterbores A and B11, then a limiting ring is installed at the end of the T-shaped pin shaft 12 in interference fit, and the limiting ring is located in the counterbore B11.

[0036] As Figures 5-7 , the third kind: the third connecting member 22 is an arc-shaped plate with elasticity, the end of the arc-shaped plate is provided with an abutting portion 32 abutting against the "cross" shaped template 1, the side of the abutting portion 32 close to the "cross" shaped template 1 is provided with a cylinder 231, and the four ends of the "cross" shaped template 1 are all provided with an opening A151 matched with the cylinder 231, and during installation, the cylinder 231 is inserted into the opening A151 and rotates inside the opening A151.

[0037] In the third mode, in order to better connect the third connecting piece 22 with the "cross" type template 1, the four end portions of the "cross" type template 1 are provided with upward protruding protrusions 13, one side of the protrusion 13 is connected with a V-shaped elastic pressing plate 14, when installed, the abutting portion 32 extends into the space formed by the V-shaped elastic pressing plate 14 and the "cross" type template 1, and the two sides of the abutting portion 32 respectively contact the V-shaped elastic pressing plate 14 and the "cross" type template 1, thereby maintaining that the third connecting piece 22 can rotate relative to the "cross" type template 1, and at the same time avoiding that the third connecting piece 22 is disconnected from the "cross" type template 1.

[0038] As Figure 8 In the above, in order to facilitate the connection of the third connecting piece 22 with the "cross" type template 1, a rectangular groove 15 is arranged on the "cross" type template 1 directly below the V-shaped elastic pressing plate 14, and the opening A 151 is arranged at one end of the rectangular groove 15 close to the protrusion 13; the depth of the rectangular groove 15 is H1, the cylinder 231 slides along the length direction of the rectangular groove 15, and the length of the cylinder 231 is H2, H2>H1, thereby realizing that the cylinder 231 can be controlled to slide along the length direction of the rectangular groove 15 during installation, and when it slides to the position of the opening A 151, the cylinder 231 is inserted into the opening A 151 at this time.

[0039] In practice, in order to facilitate the disassembly of the third connecting piece 22 and the "cross" type template 1 in the subsequent process, an opening B 152 is arranged on the side of the "cross" type template 1 away from the V-shaped elastic pressing plate 14, the opening A 151 and the opening B 152 are in a concentric structure and are connected, the diameter of the opening B 152 is greater than that of the opening A 151, thereby controlling the top rod to pass through the opening B 152 and insert into the opening A 151 during use, and the cylinder 231 can be ejected from the opening A 151.

[0040] In the description of this specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0041] The preferred embodiments of the application disclosed above are only to facilitate the elucidation of the application. The preferred embodiments do not describe all the details of the application and limit the application to the specific embodiments described. Obviously, many modifications and variations can be made in light of the teachings above. The description is chosen and described in order to best explain the principles of the application and its practical application to thereby enable others skilled in the art to best utilize the application and get the best results from the application. The application is only limited by the claims and their full scope and equivalents.

Claims

1. An orthopedic support device, characterized in that: It includes a flexible support mechanism, which includes a columnar support member (3), and a cross-shaped template (1) is respectively assembled at both ends of the support member (3); A connecting member (2) connects the two "+" shaped templates (1); The connecting member (2) includes a first connecting member (20) located in the middle, and a second connecting member (21) is telescopically connected to both ends of the first connecting member (20). The end of the second connecting member (21) is connected to a third connecting member (22). The two third connecting members (22) at both ends of the connecting member (2) are rotatably installed at the ends of the two "+" shaped templates (1). The cross-shaped template (1) has a through hole (10) in the middle, and the two ends of the support member (3) are respectively provided with movable columns (31) that have movable through holes (10).

2. The orthopedic support device according to claim 1, characterized in that, The first connector (20) includes a flexible segment (200) located in the middle, and rigid sleeves (201) are respectively connected to both ends of the flexible segment (200). One end of the second connector (21) is inserted into the rigid sleeve (201), and a spring (202) is connected between the second connector (21) and the rigid sleeve (201).

3. The orthopedic support device according to claim 1, characterized in that, The second connector (21) and the rigid sleeve (201) both have a circular cross section, and the second connector (21) can rotate around the rigid sleeve (201).

4. The orthopedic support device according to claim 1, characterized in that, The third connector (22) is an elastic arc-shaped plate, and the end of the arc-shaped plate is provided with an abutting part (32) that abuts against the cross-shaped template (1).

5. An orthopedic support device according to claim 4, characterized in that, The abutting part (32) is provided with a countersunk hole A, and the end of the "+" shaped template (1) is provided with a countersunk hole B (11) that mates with the countersunk hole A; During installation, a T-shaped pin (12) is controlled to pass through the countersunk hole A and the countersunk hole B (11) in sequence. Then, a limiting ring is installed at the end of the T-shaped pin (12) with an interference fit. The limiting ring is located inside the countersunk hole B (11).

6. The orthopedic support device according to claim 4, characterized in that, The four ends of the "+" shaped template (1) are provided with upward protrusions (13), and one side of the protrusions (13) is connected to a V-shaped elastic pressure plate (14). The abutting part (32) extends into the space formed by the V-shaped elastic pressure plate (14) and the "+" shaped template (1), and the two sides of the abutting part (32) respectively contact the V-shaped elastic pressure plate (14) and the "+" shaped template (1).

7. An orthopedic support device according to claim 6, characterized in that, A rectangular groove (15) is provided on the cross-shaped template (1) located directly below the V-shaped elastic pressure plate (14), and an opening A (151) is provided at one end of the rectangular groove (15) near the protrusion (13); A cylinder (231) is provided on the side of the abutment part (32) near the "+" shaped template (1).

8. An orthopedic support device according to claim 7, characterized in that, The depth of the rectangular groove (15) is H1, the cylinder (231) slides along the length direction of the rectangular groove (15), and the length of the cylinder (231) is H2, where H2>H1.

9. An orthopedic support device according to claim 7, characterized in that, The "+" shaped template (1) has an opening B (152) on the side away from the V-shaped elastic pressure plate (14). The opening A (151) and the opening B (152) are concentric and connected. The diameter of the opening B (152) is larger than the diameter of the opening A (151).

10. An orthopedic support device according to claim 1, characterized in that, The third connector (22) is a columnar structure with a rotating shaft (220) on one side. The end face of the "+" shaped template (1) is provided with a shaft hole (100) that mates with the rotating shaft. The outer peripheral sidewall of the rotating shaft (220) is provided with a protruding ring (221), and the inner wall of the shaft hole (100) is provided with an annular mounting groove (101) that mates with the protruding ring (221); During assembly, control the heating of the "+" shaped template (1) to expand it, then control the shaft (220) to be inserted into the shaft hole (100) until the convex ring (221) is assembled into the annular mounting groove (101), and then cool it.

Images