Jacking supporting device for posterior cervical surgery

Abstract

The invention provides a jacking supporting device for cervical posterior surgery, and relates to the technical field of medical instruments. The jacking supporting device for the posterior cervical surgery comprises a fixed base and a movable supporting plate. The fixed base comprises a fixed bottom plate and a fixed supporting plate, the fixed bottom plate and the fixed supporting plate are fixedly connected at an angle, the fixed bottom plate is fixedly installed on a side block of the cervical vertebra, a guide channel is formed in the fixed supporting plate, and a supporting limiting piece is arranged at the end, away from the fixed bottom plate, of the guide channel; one end of the movable supporting plate is fixedly installed on a neck plate of the cervical vertebra, the other end of the movable supporting plate is slidably arranged in the guide channel, and the end, away from the neck plate, of the movable supporting plate can be clamped with the supporting limiting piece. The technical effects of expanding the canalis spinalis and simplifying the operation are achieved.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and more specifically, to a liftable support device for posterior cervical spine surgery. Background Technology

[0002] Posterior cervical spine surgery is a common surgical method for treating cervical spondylotic myelopathy, mainly including laminectomy and laminoplasty. Posterior surgery is often used for patients involving three or more segments and is an effective way to improve spinal cord and nerve function.

[0003] Currently, in some posterior cervical laminoplasty surgeries, the lamina on one side is pulled obliquely backward to expand the spinal canal area, relieve the compressed nerves, and alleviate the patient's pain. However, this single-door surgical procedure often has problems such as the inability to expand the spinal canal on its own and postoperative instability. Summary of the Invention

[0004] The purpose of this invention is to provide a liftable support device for posterior cervical spine surgery, so as to alleviate the technical problems of difficult operation and inability to expand the spinal canal on its own in the prior art.

[0005] In a first aspect, embodiments of the present invention provide a liftable support device for posterior cervical spine surgery, comprising a fixed base and a movable support plate; The fixed base includes a fixed base plate and a fixed support plate, which are fixedly connected at an angle. The fixed base plate is fixedly installed on the side block of the cervical spine, and the fixed support plate has a guide channel. A support limiting member is provided at the end of the guide channel away from the fixed base plate. One end of the movable support plate is fixedly installed on the cervical plate of the cervical spine, and the other end is slidably disposed in the guide channel. The end of the movable support plate away from the cervical plate can be engaged with the support limiting member.

[0006] In conjunction with the first aspect, the present invention provides a possible implementation of the first aspect, wherein the aforementioned fixing base plate has a plurality of first fixing holes, and the fixing base plate is installed on the side block of the cervical spine by bolts passing through the first fixing holes.

[0007] In conjunction with the first aspect, the present invention provides one possible implementation of the first aspect, wherein the line connecting the plurality of the first fixing holes is parallel to the extending direction of the fixing base.

[0008] In conjunction with the first aspect, the present invention provides a possible implementation of the first aspect, wherein the line connecting the plurality of the first fixing holes is perpendicular to the extending direction of the fixing base.

[0009] In conjunction with the first aspect, the present invention provides a possible implementation of the first aspect, wherein the above-mentioned support limiting member adopts a limiting block, and the limiting block is provided on both side walls of the guide channel.

[0010] In conjunction with the first aspect, the present invention provides a possible implementation of the first aspect, wherein the end of the limiting block near the fixed base plate has a transition slope, and the transition slope smoothly transitions from one end connected to the guide channel to the other end.

[0011] In conjunction with the first aspect, the present invention provides a possible implementation of the first aspect, wherein one end of the aforementioned movable support plate is provided with a second fixing hole, and the movable support plate is installed on the cervical plate of the cervical spine by bolts passing through the second fixing hole.

[0012] In conjunction with the first aspect, the present invention provides a possible implementation of the first aspect, wherein the movable support plate has limiting slots on both sides along its length direction, the limiting slots are located at the end of the movable support plate away from the second fixing hole, and the two side walls of the guide channel are located within the limiting slots; The other end of the movable support plate is provided with an elastic through groove, and the extension direction of the elastic through groove is parallel to the extension direction of the movable support plate.

[0013] In conjunction with the first aspect, the present invention provides a possible implementation of the first aspect, wherein a third fixing hole is provided on the aforementioned movable support plate, and the third fixing hole communicates with the elastic through groove.

[0014] In conjunction with the first aspect, the present invention provides one possible implementation of the first aspect, wherein the aforementioned movable support plate is warped at the limiting slot.

[0015] Beneficial effects: This invention provides a liftable support device for posterior cervical spine surgery, including a fixed base and a movable support plate. The fixed base includes a fixed bottom plate and a fixed support plate, which are fixedly connected at an angle. The fixed bottom plate is fixedly installed on the lateral mass of the cervical spine. The fixed support plate has a guide channel, and a support limiting member is provided at the end of the guide channel away from the fixed bottom plate. One end of the movable support plate is fixedly installed on the cervical plate of the cervical spine, and the other end is slidably disposed in the guide channel. The end of the movable support plate away from the cervical plate can be engaged with the support limiting member.

[0016] Specifically, during the surgery, medical staff first cut open the lamina on the opening side of the cervical spine, then install the fixing plate of the fixing base on the lateral block on the opening side, and then insert one end of the movable support plate into the guide channel, allowing one end of the movable support plate to slide within the guide channel. Then, the other end of the movable support plate is installed on the lamina with bolts, and then the end of the movable support plate located in the guide channel is slid towards the support limiting component using a spreading forceps, so that the movable support plate is engaged with the support limiting component. Through this setup, medical staff can quickly complete the installation of the liftable support device for posterior cervical spine surgery. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 A schematic diagram of the lifting support device for posterior cervical spine surgery provided in this embodiment of the invention during use; Figure 2 This is a schematic diagram of a first embodiment of the fixed base in the liftable support device for posterior cervical spine surgery provided in this invention. Figure 3 This is a schematic diagram of a second embodiment of the fixed base in the liftable support device for posterior cervical spine surgery provided in this invention. Figure 4 This is a schematic diagram of the movable support plate in the liftable support device for posterior cervical spine surgery provided in an embodiment of the present invention; Figure 5 A schematic diagram of a first embodiment of the liftable support device for posterior cervical spine surgery provided in this invention; Figure 6 This is a schematic diagram of a second embodiment of the liftable support device for posterior cervical spine surgery provided in this invention.

[0019] icon: 100 - Fixed base; 110 - Fixed base plate; 111 - First fixing hole; 120 - Fixed support plate; 121 - Guide channel; 122 - Support limiting component; 123 - Transition slope; 124 - Accommodation space; 200 - Movable support plate; 210 - Second fixing hole; 220 - Limiting slot; 230 - Elastic through slot; 240 - Third fixing hole; 300-Cervical vertebrae; 310-Lateral mass; 320-Cervical plate. Detailed Implementation

[0020] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. 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.

[0021] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0022] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0023] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0024] The present invention will now be described in further detail with reference to specific embodiments and accompanying drawings.

[0025] See Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, this embodiment provides a liftable support device for posterior cervical spine surgery, including a fixed base 100 and a movable support plate 200. The fixed base 100 includes a fixed base plate 110 and a fixed support plate 120, which are fixedly connected at an angle. The fixed base plate 110 is fixedly installed on the side block 310 of the cervical spine 300. The fixed support plate 120 has a guide channel 121, and a support limiting member 122 is provided at one end of the guide channel 121 away from the fixed base plate 110. One end of the movable support plate 200 is fixedly installed on the cervical plate 320 of the cervical spine 300, and the other end is slidably disposed in the guide channel 121. The end of the movable support plate 200 away from the cervical plate 320 can be engaged with the support limiting member 122.

[0026] Specifically, during the surgery, medical staff first cut open the lamina on the opening side of the cervical vertebra 300, then install the fixing base plate 110 of the fixing base 100 on the side block 310 on the opening side, and then insert one end of the movable support plate 200 into the guide channel 121, so that one end of the movable support plate 200 can slide in the guide channel 121. Then, the other end of the movable support plate 200 is installed on the lamina with bolts. Then, the end of the movable support plate 200 located in the guide channel 121 is slid towards the support limiting member 122 by the spreading forceps, so that the movable support plate 200 is engaged with the support limiting member 122. With this setting, medical staff can quickly complete the installation of the liftable support device for posterior cervical vertebra 300 surgery.

[0027] It should be noted that both the fixed base 100 and the movable support plate 200 are made of titanium plates, and those skilled in the art can choose the specific model of titanium plate according to actual needs.

[0028] See Figures 1-6 As shown, in an optional embodiment, the base plate 110 has multiple first fixing holes 111, and the base plate 110 is installed on the side block 310 of the cervical vertebra 300 by bolts passing through the first fixing holes 111.

[0029] Specifically, multiple first fixing holes 111 are made on the fixed base plate 110. The fixed base plate 110 is installed on the side block 310 of the cervical vertebra 300 by bolts passing through the first fixing holes 111, so as to ensure the stability of the fixed base plate 110.

[0030] In this design, the line connecting the plurality of first fixing holes 111 is parallel to the extending direction of the fixing base 100. Alternatively, the line connecting the plurality of first fixing holes 111 is perpendicular to the extending direction of the fixing base 100. This arrangement allows the fixing base plate 110 to accommodate patients with different bone sizes, improving the applicability of the liftable support device for posterior cervical spine surgery. Furthermore, the number of first fixing holes 111 can be multiple, for example, two, three, or four, which can be customized by those skilled in the art according to actual needs.

[0031] See Figures 1-6 As shown, in the optional scheme of this embodiment, the support limiting member 122 adopts a limiting block, and limiting blocks are provided on both side walls of the guide channel 121.

[0032] Specifically, the support limiting component 122 can be a limiting block. Limiting blocks are provided on both sides of the guide channel 121. The width of the guide channel 121 at the position where the limiting block is set is less than the width of the guide channel 121, so that the limiting block can limit the limiting slot 220 on the movable support plate 200.

[0033] It should be noted that the size of the fixed base 100 can be set in a series according to needs, with different size specifications, so that doctors can choose different lifting heights and provide different spinal canal volumes for patients.

[0034] Furthermore, after the cephalic section is completed, artificial bone or autologous bone can be filled into the window to fuse the incision and improve the speed of recovery.

[0035] It should be noted that the support limiting member 122 is located near the end of the guide channel 121, and a receiving space 124 is formed between the support limiting member 122 and the guide channel 121. The length of the receiving space 124 along the extension direction of the guide channel 121 is not less than the thickness of the movable support plate 200, so that the movable support plate 200 can be locked in the receiving space 124.

[0036] See Figures 1-6 As shown, in the optional embodiment, the end of the limiting block near the fixed base plate 110 has a transition slope 123, which smoothly transitions from one end connected to the guide channel 121 to the other end.

[0037] Specifically, to improve the smoothness of the engagement between the upper limit slot 220 of the movable support plate 200 and the support limiting member 122, a transition slope 123 is provided at the end of the limiting block near the fixed base plate 110. The transition slope 123 smoothly transitions from the end connected to the guide channel 121 to the other end. That is, when the limiting slot 220 on the movable support plate 200 slides to the support limiting member 122, the bottom of the limiting slot 220 abuts against the transition slope 123. The bottom of the limiting slot 220 can gradually move from abutting against the side wall of the guide channel 121 to the top of the support limiting member 122 along the transition slope 123, and then pass over the support limiting member 122 to complete the engagement between the support limiting member 122 and the movable support plate 200.

[0038] See Figures 1-6 As shown, in an optional embodiment, one end of the movable support plate 200 is provided with a second fixing hole 210, and the movable support plate 200 is installed on the cervical plate 320 of the cervical spine 300 by bolts passing through the second fixing hole 210.

[0039] Specifically, a second fixing hole 210 is provided on the movable support plate 200. The movable support plate 200 is installed on the vertebral plate of the cervical spine 300 by bolts passing through the second fixing hole 210 to ensure the stability of the movable support plate 200.

[0040] See Figures 1-6 As shown, in the optional embodiment, the movable support plate 200 has limiting slots 220 on both sides along its length direction. The limiting slots 220 are located at the end of the movable support plate 200 away from the second fixing hole 210, and the two side walls of the guide channel 121 are located in the limiting slots 220. The other end of the movable support plate 200 has an elastic through groove 230, and the extension direction of the elastic through groove 230 is parallel to the extension direction of the movable support plate.

[0041] Specifically, limiting slots 220 are provided on both sides of the movable support plate 200 along its length. The limiting slots 220 allow the movable support plate 200 to slide smoothly with the guide channel 121. Furthermore, the elastic through slots 230 allow the two limiting slots 220 on the movable support plate 200 to approach each other, optimizing the fit between the movable support plate 200 and the support limiting member 122.

[0042] The movable support plate 200 is warped at the limiting slot 220, and the fixed base plate 110 and the fixed support plate 120 are fixedly connected at an angle. This arrangement improves the connection stability between the movable support plate 200 and the fixed support plate 120.

[0043] See Figures 1-6As shown, in the optional solution of this embodiment, the movable support plate 200 is provided with a third fixing hole 240, which is connected to the elastic through groove 230.

[0044] Specifically, a third fixing hole 240 is provided on the movable support plate 200. The third fixing hole 240 is close to the limiting slot 220 and is connected to the elastic through slot 230. With this arrangement, when a bolt is screwed into the third fixing hole 240, the parts of the movable support plate 200 located on both sides of the elastic through slot 230 cannot get close, that is, the two limiting slots 220 cannot get close to each other, so that the limiting slots 220 cannot disengage from the support limiting member 122 by getting close to each other.

[0045] In summary, during the surgery, medical personnel first cut open the lamina on the opening side of the cervical vertebra 300, and then install the fixing base plate 110 of the fixing base 100 on the side block 310 on the opening side. The fixing base plate 110 has a first fixing hole 111. The fixing base plate 110 is installed on the side block 310 by bolts, thereby ensuring the fixing base plate 110 is fixed. Then, one end of the movable support plate 200 with a limiting groove 220 is inserted into the guide channel 121 on the fixing support plate 120. The two side walls of the guide channel 121 are located within the limiting groove 220, so that the movable support plate 200 can move freely. The support plate 200 can slide along the guide channel 121. Then, the movable support plate 200 is fixed to the vertebral plate by bolts passing through the second fixing hole 210, thus completing the pre-fixation of the movable support plate 200. Then, medical personnel use a spreader to drive the movable support plate 200 to open one end of the limiting slot 220, so that the limiting slot 220 of the movable support plate 200 faces the supporting limiting member 122 of the guide channel 121. An elastic through groove 230 is opened on the movable support plate 200, and limiting slots are opened on both sides of the movable support plate 200 at the elastic through groove 230. When one end of the movable support plate 200 with the limiting slot 220 moves to the supporting limiting member 122, both sides of the movable support plate 200 will move into the elastic through groove 230, so that one end of the movable support plate 200 with the limiting slot 220 can pass over the supporting limiting member 122 of the guide channel 121. Then, under its own elasticity, the movable support plate 200 will return to its original position on both sides. At this time, the limiting slot 220 abuts against the two side walls of the guide channel 121, and the supporting limiting member 122 abuts against the plate body of the movable support plate 200. Without external force... Under the action of the limiting slot 220, one end of the movable support plate 200 cannot be separated from the limiting member 122. Finally, the bolt passes through the third fixing hole 240 and is fixed to the vertebral plate. At this time, the third fixing hole 240 supports the elastic through groove 230, so that the movable support plate 200 is located on both sides of the elastic through groove 230 and cannot move into the elastic through groove 230. Even under the action of external force, one end of the movable support plate 200 with the limiting slot 220 cannot be separated from the limiting member 122, thus ensuring the stability of the liftable support device for posterior cervical spine surgery.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A liftable support device for posterior cervical spine (300) surgery, characterized in that, include: Fixed base (100) and movable support plate (200); The fixed base (100) includes a fixed base plate (110) and a fixed support plate (120). The fixed base plate (110) and the fixed support plate (120) are fixedly connected at an angle. The fixed base plate (110) is fixedly installed on the side block (310) of the cervical spine (300). The fixed support plate (120) is provided with a guide channel (121). A support limiting member (122) is provided at the end of the guide channel (121) away from the fixed base plate (110). One end of the movable support plate (200) is fixedly installed on the cervical plate (320) of the cervical spine (300), and the other end is slidably disposed in the guide channel (121). The end of the movable support plate (200) away from the cervical plate (320) can be engaged with the support limiting member (122).

2. The liftable support device for posterior cervical spine (300) surgery according to claim 1, characterized in that, The fixed base plate (110) has multiple first fixing holes (111) and is installed on the side block (310) of the cervical spine (300) by bolts passing through the first fixing holes (111).

3. The liftable support device for posterior cervical spine (300) surgery according to claim 2, characterized in that, The line connecting the plurality of the first fixing holes (111) is parallel to the extension direction of the fixing base (100).

4. The liftable support device for posterior cervical spine (300) surgery according to claim 2, characterized in that, The line connecting the plurality of the first fixing holes (111) is perpendicular to the extension direction of the fixing base (100).

5. The liftable support device for posterior cervical spine (300) surgery according to claim 1, characterized in that, The supporting limiting component (122) adopts a limiting block, and the limiting block is provided on both sides of the guide channel (121).

6. The liftable support device for posterior cervical spine (300) surgery according to claim 5, characterized in that, The limiting block has a transition slope (123) at one end near the fixed base plate (110), which smoothly transitions from one end connected to the guide channel (121) to the other end.

7. The liftable support device for posterior cervical spine (300) surgery according to claim 1, characterized in that, The movable support plate (200) has a second fixing hole (210) at one end, and the movable support plate (200) is installed on the cervical plate (320) of the cervical spine (300) by bolts passing through the second fixing hole (210).

8. The liftable support device for posterior cervical spine (300) surgery according to claim 7, characterized in that, The movable support plate (200) has limit slots (220) on both sides along its length direction. The limit slots (220) are located at the end of the movable support plate (200) away from the second fixing hole (210). The two side walls of the guide channel (121) are located in the limit slots (220). The other end of the movable support plate (200) is provided with an elastic through groove (230), and the extension direction of the elastic through groove (230) is parallel to the extension direction of the movable support plate.

9. The liftable support device for posterior cervical spine (300) surgery according to claim 8, characterized in that, The movable support plate (200) has a third fixing hole (240) which is connected to the elastic through groove (230).

10. The liftable support device for posterior cervical spine (300) surgery according to claim 8, characterized in that, The movable support plate (200) is warped at the limiting slot (220).

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