Skyphosis correcting device capable of being automatically adjusted along with spine growth

Abstract

A scoliosis correcting device capable of being automatically adjusted along with spine growth comprises at least one seat body, each seat body is provided with a guide hole and provided with a connecting hole in a penetrating mode, the connecting holes are perpendicular to the guide holes, and the connecting holes are used for allowing vertebral nails to penetrate through and then be locked on vertebral segments; and the correcting rod is sequentially arranged in the guide holes of the seat bodies in a penetrating manner, and the seat bodies can relatively slide along the correcting rod. Wherein each seat body is integrally formed, so that the total number of components required by the scoliosis correction device is reduced, and the scoliosis correction device is simpler and quicker to mount, so that the operation time is shortened, and the operation risk of a patient is reduced.

Description

Technical Field

[0001] The invention relates to a scoliosis correction device, in particular to a scoliosis correction device which can automatically adjust with the growth of the spine. Background Art

[0002] Scoliosis is caused by long-term poor posture, while others are congenital scoliosis. If scoliosis occurs in adults (when bones no longer grow), good treatment results can be achieved through surgery for correction and fusion fixation. However, if scoliosis occurs in the growth stage of children or teenagers, the patient's spine will continue to grow during the growth stage, so the correction method and device performed by fusion fixation surgery are not applicable.

[0003] For patients with scoliosis in the growth stage, the current medical advice is to perform surgical correction only when the scoliosis exceeds 45 degrees or has severely compressed the heart and lung function. The scoliosis correctors currently suitable for this stage must be used for multiple surgeries in accordance with the patient's growth rate to adjust the corrector to the appropriate position. However, children in the growth stage are still young and have to endure long-term and multiple surgeries. Even adult patients will find it very unbearable and frustrating, let alone underage children. Currently, spinal braces are used in the growth stage, such as the article "Surgical management of early-onset scoliosis: indications and currently available techniques" published by Tom PC Schlosser et al. The TGR (Traditional growing rods) brace is composed of two relatively retractable rods, each fixed at one end of the spine. According to the patient's growth rate, the doctor can adjust the length of the two rods by cutting open the patient's back and opening the brace through surgery. Usually, the patient must undergo another surgery every 6 weeks, so that the entire correction course must undergo multiple surgeries, which is an extremely painful physical and psychological torture for the patient.

[0004] MCGR (Magnetically controlled growing rods) correctors improve the disadvantage of TGR's frequent surgeries. MCGR uses magnetic induction outside the patient's body to change the length of the correctors installed at both ends of the spine to respond to the patient's growth. Although it can avoid the disadvantage of TGR's frequent surgeries, the patient's growth is continuous, growing every minute of every day. The adjustment of MCGR still requires doctor's evaluation and operation. Therefore, it cannot meet the patient's growth needs every minute of every second in a timely manner, and it is obviously necessary to improve it.

[0005] Therefore, the inventor and applicant of the present case disclosed a scoliosis correction component that can automatically adjust with the growth of the spine, and submitted Taiwan Patent Application No. 112107024. The scoliosis correction component that can automatically adjust with the growth of the spine disclosed in the case includes: a fixed seat, the fixed seat includes a seat body, the top of the seat body is recessed with a receiving hole, the receiving hole passes through the seat body horizontally, and a fixing element is installed at the bottom of the fixed seat, the fixing element is used to fix on one of the vertebrae of the patient's spine; a guide tube, the guide tube includes a through guide hole, the guide tube is placed in the receiving hole of the fixed seat; and a first correction rod, which passes through the guide hole so that the guide tube can slide relatively along the first correction rod; wherein the first correction rod can be made of metal or non-metal material, the first correction rod is in the shape of a thin rod or cable, can be elastically bent, and when the external force is removed, the first correction rod can elastically return to its original shape. In this way, when the distance between the vertebrae of the spine changes during the growth of the patient, the fixed seat fixed on the vertebrae will link the guide tube to slide relatively along the first correction rod, so as to automatically adjust according to the distance change between the vertebrae of the patient during the growth stage, thereby solving the shortcomings of the existing fusion corrector that cannot be adjusted or the current adjustable corrector that needs to be adjusted surgically every once in a while, thereby greatly reducing the patient's physical and psychological pain. A similar structure is also disclosed in US Patent US 11744618 B2.

[0006] No. 112107024 or US Pat. No. 11744618 B2 mentioned above, both adopt the existing pedicle screw structure, a socket is recessed on the seat of the pedicle screw, and a guide tube is fixed in the socket by a fixing element, so that the correction rod can be inserted into the guide tube and slide relatively. Therefore, during the operation, the guide tube must be installed. Since the patient who undergoes scoliosis correction must install the guide tube on many vertebrae, the above-mentioned scoliosis correction assembly not only shows the cumbersome installation steps, but also increases the time required for the operation, which will increase the surgical risk of the patient and show its disadvantages.

[0007] In view of this, the inventor of the present invention has conducted further research and innovation, and finally disclosed the scoliosis correction device shown in the present invention that can automatically adjust with the growth of the spine. Summary of the invention

[0008] The purpose of the present invention is to provide a scoliosis correction device that can automatically adjust with the growth of the spine, including: at least one seat body, each of which contains a guide hole and a connecting hole passing through it, the connecting hole and the guide hole are perpendicular to each other, and the connecting hole can be used for the vertebral screw to pass through and then be locked on the vertebral segment, so as to restrict the seat body on the vertebral segment and move with the vertebral segment; and a correction rod inserted into the guide hole of each seat body, and each seat body can slide relatively along the correction rod. The scoliosis correction device disclosed in the present invention can pass the correction rod through the one-piece seat body, eliminating the structure and components of the guide tube installation in US Pat. No. 112107024 or US Pat. No. 11744618 B2, so as to achieve the purpose of simplifying parts, reducing installation operation steps and shortening the time required for surgery, and also showing the novelty and progress of the present invention.

[0009] The scoliosis correction device disclosed in the present invention can be automatically adjusted with the growth of the spine, wherein the cross-section of the guide hole and the correction rod is a flat rectangular shape, that is, a flat strip with a certain width. The correction rod can be inserted into the guide hole of each seat body in a flat plate shape. Since the flat correction rod can provide the human body with forward and backward bending and left and right turning movements, the inconvenience caused to the patient's life during the correction period due to the installation of the scoliosis correction device is reduced.

[0010] The invention discloses a scoliosis correction device which can automatically adjust with the growth of the spine, wherein at least one through hole is formed on the correction rod.

[0011] The invention discloses a scoliosis correction device that can automatically adjust with the growth of the spine, wherein the seat body is penetrated by the guide hole and the second guide hole, the guide hole and the second guide hole are parallel to each other, and the second guide hole allows the second correction rod to penetrate.

[0012] The invention discloses a scoliosis correction device which can automatically adjust with the growth of the spine, wherein the guide hole is composed of two holes whose cross sections are arc-shaped.

[0013] The scoliosis correction device disclosed in the present invention can be automatically adjusted with the growth of the spine, wherein the seat body is further provided with an opening, and the opening is connected to the guide hole.

[0014] The invention discloses a scoliosis correction device that can automatically adjust with the growth of the spine, wherein the connection hole forms a spherical cavity; the vertebral nail comprises a screw portion, a head is formed at the top of the screw portion, and the bottom of the head is spherical to straddle the spherical cavity.

[0015] The present invention discloses a scoliosis correction device that can automatically adjust with the growth of the spine, wherein the seat body is penetrated with at least one fixing hole, so that the correction rod penetrated into the seat body can be fixed in the seat body after the fixing screw is locked into the fixing hole.

[0016] The scoliosis correction device disclosed in the present invention can be automatically adjusted with the growth of the spine, which further comprises a guide seat body, on which at least one guide groove is provided for inserting the correction rod therein, and the guide seat body can allow the vertebral screw to pass through and then be locked on the vertebral segment.

[0017] The scoliosis correction device disclosed in the present invention can be automatically adjusted with the growth of the spine, which further comprises a connecting seat body, the bottom end of which is connected to a vertebral screw, and a first connecting portion is provided at the first end of the connecting seat body for connecting a fixing rod of a spinal fusion device therein, and at least one second connecting portion is provided at the second end of the connecting seat body for connecting the correction rod therein.

[0018] The preferred embodiments of the present invention will be apparent from the following description and accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a perspective exploded schematic diagram of the first embodiment of the present invention.

[0020] Figure 2 It is a schematic assembly diagram of the first embodiment of the present invention.

[0021] Figure 3 It is a plan view of the first embodiment of the present invention installed on the spine of a patient.

[0022] Figure 4 1 is a schematic diagram of the first embodiment of the present invention in which the correction rod is locked on one of the vertebral segments.

[0023] Figure 5 It is a schematic diagram of a patient wearing the device of the present invention performing forward bending exercise.

[0024] Figure 6 It is a perspective exploded schematic diagram of the second embodiment of the seat body disclosed in the present invention.

[0025] Figure 7 It is an assembly diagram of the second embodiment of the present invention.

[0026] Figure 8 It is a plan view of the second embodiment of the present invention installed on the spine of a patient.

[0027] Fig. 9 It is a three-dimensional schematic diagram of a third embodiment of a seat body disclosed in the present invention.

[0028] Fig.10 It is an assembly diagram of the third embodiment of the present invention.

[0029] Fig.11 It is a plan view of the third embodiment of the present invention installed on the patient's spine.

[0030] Fig.12 It is a three-dimensional schematic diagram of a fourth embodiment of a seat body disclosed in the present invention.

[0031] Fig.13 2 is an assembly diagram of a fourth embodiment of the present invention.

[0032] Fig.14 It is a three-dimensional schematic diagram of a fifth embodiment of the seat disclosed by the present invention.

[0033] Fig.15 2 is an assembly diagram of a fifth embodiment of the present invention.

[0034] Fig.16 It is a perspective exploded schematic diagram of a sixth embodiment of the present invention.

[0035] Fig.17 yes Fig.16 A schematic plan view of the embodiment shown is mounted on a patient's spine.

[0036] Fig.18 It is a perspective exploded schematic diagram of the seventh embodiment of the present invention.

[0037] Fig.19 yes Fig.18 Schematic diagram of the installation of the embodiment shown.

[0038] Fig. 20 It is a three-dimensional schematic diagram of the guide seat body shown in the present invention.

[0039] Fig.21 It is a schematic diagram of the operation of connecting the connecting seat body to the spinal fusion device of the present invention.

[0040] Description of reference numerals: DETAILED DESCRIPTION

[0041] See also Figures 1 to 5 As shown, the present invention relates to a scoliosis correction device that can automatically adjust with the growth of the spine, comprising: at least one seat body (10), each of the seat bodies (10) having a guide hole (11) and a connecting hole (12) passing through the guide hole (11), the connecting hole (12) and the guide hole (11) being perpendicular to each other, and the connecting hole (12) can allow a vertebral nail (20) to pass through and then be locked on the vertebral segment (P), so as to restrict the seat body (10) on the vertebral segment (P) and move with the growth of the vertebral segment (P); and a correction rod (30) inserted into the guide hole (11) of each of the seat bodies (10), each of the seat bodies (10) can slide relatively along the correction rod (30), that is, each of the seat bodies (10) of the present invention will slide along the correction rod (30) as the patient's spine grows, and the patient does not need to undergo surgical adjustment.

[0042] The scoliosis correction device disclosed in the present invention can automatically adjust with the growth of the spine. Each integrally formed seat (10) allows the correction rod (30) to be inserted, eliminating the structure and components of the guide tube installation in Patent No. 112107024 or U.S. Patent US 11744618B2, thereby achieving the purpose of simplifying parts, reducing installation operation steps and shortening the time required for surgery, and also showing the novelty and progress of the present invention.

[0043] like Figure 2 , Figure 3 , Figure 5 As shown, the scoliosis correction device disclosed by the present invention can be automatically adjusted with the growth of the spine, wherein the cross-section of the guide hole (11) and the correction rod (30) is a flat rectangular shape. The correction rod (30) can be inserted into the guide hole (11) of each of the base bodies (10) in a flat plate shape. Since the flat correction rod (30) can provide the human body with forward bending or backward bending and left and right twisting movements, it can effectively limit the scoliosis of the human body to maintain the position of each vertebral segment after correction without displacement due to the patient's movement. Therefore, during the correction period, the patient who installs the present invention can perform forward bending, backward bending and left and right twisting movements in addition to scoliosis. Of course, the above-mentioned movements will still be slightly limited by the scoliosis correction device of the present invention, and it is impossible to perform large curvature movements like normal people, but the present invention can reduce the inconvenience caused to the patient's life during the correction period due to the installation of the scoliosis correction device.

[0044] like Figure 4 As shown, the scoliosis correction device disclosed in the present invention can automatically adjust with the growth of the spine, wherein at least one through hole (31) is provided on the correction rod (30), so that the fixing nail (311) can pass through the through hole (31) to lock the correction rod (30) on a certain vertebra (P), so that when the patient grows, the correction rod (30) will not slide out of the base (10) due to one end. Fig.14 , 15 As shown, the scoliosis correction device disclosed in the present invention can be automatically adjusted with the growth of the spine, wherein each base (10) is further provided with a second guide hole (11'), the guide hole (11) and the second guide hole (11') are parallel to each other, and the second guide hole (11') allows the second correction rod (30') to pass through; in this way, the base (10) can simultaneously pass the correction rod (30) and the second correction rod (30') in a multi-layer manner to increase the force to prevent the spine from generating lateral bending, so that the corrected spine can be maintained in the correct position after correction.

[0045] like Figures 9 to 13As shown, the scoliosis correction device disclosed by the present invention can be automatically adjusted with the growth of the spine, wherein the guide hole (11) is composed of two holes (11a, 11b) with arc-shaped cross-sections; wherein each hole (11a, 11b) can form an arc-shaped hole larger than 1 / 2 semicircle to respectively accommodate a correction rod (30a) with a circular cross-section therein, so as to prevent each correction rod (30a) from escaping from the hole (11a, 11b). In this embodiment of the present invention, the seat body (10) can be penetrated with one or two correction rods (30a) according to the needs of the patient, wherein each correction rod (30a) can be selected from different or the same materials or correction rods (30a) with different elastic coefficients and hardnesses, so that the present invention is applicable to patients with different scoliosis correction.

[0046] like Fig.11 As shown, the scoliosis correction device disclosed by the present invention can be automatically adjusted with the growth of the spine. During installation, one end (32) of the correction rod (30a) can be fixed to the vertebra (P) with a screw or an existing vertebral arch screw to limit the movement of the correction rod (30a).

[0047] like Figures 16 to 19 As shown, the scoliosis correction device disclosed by the present invention can be automatically adjusted with the growth of the spine. The base body (10) is provided with at least one fixing hole (13), so that after the fixing screw (131) is locked into the fixing hole (13), the correction rod (30 or 30a) inserted into the base body (10) is fixed in the base body (10) to limit the free sliding of the correction rod (30 or 30a); Fig.17 As shown, in practice, the correction rod (30) located on one side of the spine can be locked in the seat (10) located above, while the correction rod (30) located on the other side of the spine can be locked in the seat (10) located below; in this way, during the patient's growth process, the correction rod (30) will be displaced accordingly, so that the seat (10) can stably slide relative to each correction rod (30). Fig.18 , 19 As shown, when two correction rods (30a) are inserted into the seat body (10) of the present invention, one of the correction rods (30a) can be locked in the seat body (10) located at the top of the spine, while the other correction rod (30a) can be locked in the seat body (10) located at the bottom of the spine.

[0048] The scoliosis correction device disclosed by the present invention can automatically adjust with the growth of the spine. When installed, the correction rod (30) is as follows: Figure 2 As shown, the seat body (10) installed on the first or last vertebra of the patient's spine can be sequentially (such as Figure 2The surgical method can make a small opening at an appropriate position on the patient's back to reduce the wound area after surgery, thereby facilitating wound healing and reducing hospitalization time. Figures 6-8 , Figures 12 to 15 As shown, the present invention further forms an opening (111) on each seat body (10), and the opening (111) is connected to the guide hole (11), so that when the present invention is installed, the correction rod (30) can be inserted into the guide hole (11) through the opening (111). This method is suitable for patients who undergo a completely open surgical method in the spinal area to be corrected.

[0049] like Figure 5 As shown, the scoliosis correction device disclosed in the present invention can be automatically adjusted with the growth of the spine, wherein the connecting hole (12) is formed with a spherical recess (121); the vertebral nail (20) includes a screw portion (21), a head (22) is formed at the top of the screw portion (21), and the bottom of the head (22) is spherical so as to be placed in the spherical recess (121), so that the seat (10) disclosed in the present invention can swing freely on the vertebral nail (20) when the patient is bending forward, leaning back, or twisting left and right.

[0050] The present invention discloses a scoliosis correction device that can automatically adjust with the growth of the spine, wherein the seat body (10) can be made of metal or non-metal material, and the present invention is not limited thereto.

[0051] The scoliosis correction device disclosed in the present invention can be automatically adjusted as the spine grows. When installed, it can be installed on one or both sides of each vertebra of the affected part of the spine after correcting each vertebra of the patient's spine to the correct position, depending on the needs of the patient, so as to meet the needs of different patients.

[0052] The present invention discloses a scoliosis correction device that can automatically adjust with the growth of the spine, wherein each correction rod (30, 30a) and the second correction rod (30') can be made of metal materials, such as memory metals such as titanium alloys or non-metallic materials such as composite materials such as PEEK, but the present invention is not limited thereto.

[0053] like Fig. 20 As shown, the scoliosis correction device disclosed in the present invention can be automatically adjusted with the growth of the spine, further comprising a guide seat (10a), on which at least one guide groove (14) is provided to allow the correction rod (30) to pass therein, and the guide seat (10a) can allow the vertebral nail (20) to pass through and then be locked on the patient's vertebral segment. The guide groove (14) can be an arc groove or an oblique groove to guide the correction rod (30) to be curved in an arc shape or obliquely curved to meet the needs of different patients.

[0054] like Fig.21 As shown, the scoliosis correction device disclosed in the present invention can be automatically adjusted with the growth of the spine, further comprising a connecting seat (10b), the bottom end of which is connected to a vertebral screw (20), and a first connecting portion (15) is provided at the first end of the connecting seat (10b) for connecting a fixing rod (41) of a spinal fusion device (40) therein, and at least one second connecting portion (16) is provided at the second end of the connecting seat (10b) for connecting the correction rod (30) therein. In this way, the present invention can be used in conjunction with the spinal fusion device (40) that is currently widely used in spinal fusion surgery, so that the patient can undergo fusion surgery on a local spine for fixation, and the seat (10) shown in the present invention can be used on some vertebrae, so that the seat (10) can produce relative displacement along the correction rod (30) as the patient grows, so as to correct the symptoms of scoliosis.

[0055] The structure and shape disclosed in the present invention may be modified and applied without violating the spirit and scope of the present invention, and are not limited to the above-mentioned embodiments.

Claims

1. A scoliosis correction device that can automatically adjust with the growth of the spine, characterized in that: include: At least one seat body, each of which has a guide hole and a connecting hole passing through it, wherein the connecting hole and the guide hole are perpendicular to each other, and the connecting hole can be used for a vertebral screw to pass through and then be locked on the vertebral segment, so as to restrict the seat body on the vertebral segment and move with the vertebral segment; as well as The correction rod is inserted into the guide hole of each seat body, and each seat body can slide relatively along the correction rod.

2. The scoliosis correction device capable of automatically adjusting with the growth of the spine as claimed in claim 1, characterized in that: The cross sections of the guide hole and the correction rod are in a flat rectangular shape.

3. The scoliosis correction device capable of automatically adjusting with the growth of the spine as claimed in claim 1, characterized in that: At least one through hole is formed on the correction rod.

4. The scoliosis correction device capable of automatically adjusting with the growth of the spine as claimed in claim 1, characterized in that: The seat body is penetrated with the guide hole and the second guide hole, the guide hole and the second guide hole are parallel to each other, and the second guide hole allows the second correction rod to penetrate.

5. The scoliosis correction device capable of automatically adjusting with the growth of the spine as claimed in claim 1, characterized in that: The guide hole is composed of two holes whose cross sections are arc-shaped.

6. The scoliosis correction device capable of automatically adjusting with the growth of the spine as claimed in claim 1, characterized in that: The seat body is further formed with an opening, and the opening is connected to the guide hole.

7. The scoliosis correction device capable of automatically adjusting with the growth of the spine as claimed in claim 1, characterized in that: The connection hole is formed with a spherical concave cavity; the vertebral nail comprises a screw portion, a head portion is formed at the top end of the screw portion, and the bottom of the head portion is spherical so as to straddle the spherical concave cavity.

8. The scoliosis correction device capable of automatically adjusting with the growth of the spine as claimed in claim 1, characterized in that: The seat body is penetrated with at least one fixing hole, so that after the fixing screw is locked into the fixing hole, the correction rod penetrated into the seat body is fixed in the seat body.

9. The scoliosis correction device capable of automatically adjusting with the growth of the spine as claimed in claim 1, characterized in that: The invention further comprises a guide seat body, wherein at least one guide groove is arranged on the guide seat body for inserting the correction rod therein, and the guide seat body can allow the vertebral screw to pass through and then be locked on the vertebral segment.

10. The scoliosis correction device capable of automatically adjusting with the growth of the spine as claimed in claim 1, characterized in that: The invention further comprises a connecting seat body, the bottom end of which is connected with a vertebral screw, and a first connecting portion is provided at the first end of the connecting seat body for connecting with a fixing rod of a spinal fusion device therein, and at least one second connecting portion is provided at the second end of the connecting seat body for connecting with the correction rod therein.

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