CN115444527B - Cervical spinal canal enlargement and shaping fixation components - Google Patents
Cervical spinal canal enlargement and shaping fixation components Download PDFInfo
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- CN115444527B CN115444527B CN202211037190.5A CN202211037190A CN115444527B CN 115444527 B CN115444527 B CN 115444527B CN 202211037190 A CN202211037190 A CN 202211037190A CN 115444527 B CN115444527 B CN 115444527B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws or setting implements
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/70—Spinal positioners or stabilisers, e.g. stabilisers comprising fluid filler in an implant
- A61B17/7071—Implants for expanding or repairing the vertebral arch or wedged between laminae or pedicles; Tools therefor
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Abstract
本发明提供一种颈椎椎管扩大成型固定组件，包括：折叠板以及紧固件；折叠板包括插板件和定位件，插板件包括插件安装部和插件承接部，插件安装部上设有插件安装孔，插件承接部与一插件连接部连接；定位件包括定位主体、定位安装部和定位插入部，定位主体与插件连接部活动连接，使得定位件可相对于插板件转动；当折叠板处于折叠状态时，插件承接部与定位插入部共面，插件承接部与定位件接触，定位插入部处于插件承接部的下方。该颈椎椎管扩大成型固定组件应用于双开门升脊手术中，使得椎板不会向着侧向偏移，保持了人体原有的生理力学结构，双开门升脊手术后，椎体受力稳定，有利于患者更好的康复。
The present invention provides a cervical spinal canal enlargement molding fixation assembly, comprising: a folding plate and a fastener; the folding plate comprises a plug-in plate and a positioning member, the plug-in plate comprises a plug-in mounting portion and a plug-in receiving portion, the plug-in mounting portion is provided with a plug-in mounting hole, and the plug-in receiving portion is connected to a plug-in connecting portion; the positioning member comprises a positioning body, a positioning mounting portion and a positioning insertion portion, the positioning body is movably connected to the plug-in connecting portion, so that the positioning member can rotate relative to the plug-in plate; when the folding plate is in a folded state, the plug-in receiving portion is coplanar with the positioning insertion portion, the plug-in receiving portion contacts the positioning member, and the positioning insertion portion is below the plug-in receiving portion. The cervical spinal canal enlargement molding fixation assembly is applied to double-door spinal lifting surgery, so that the vertebral plate will not deviate laterally, maintaining the original physiological mechanical structure of the human body, and after the double-door spinal lifting surgery, the vertebral body is stably stressed, which is conducive to better recovery of the patient.
Description
Technical Field
The invention relates to the technical field of medical appliances, in particular to a cervical vertebra canal expansion forming fixing component.
Background
At present, in the partial posterior spinal canal molding operation of cervical vertebrae, only a unilateral lamina is cut, and is pulled obliquely to the rear so as to enlarge the area of the spinal canal, relax the pressed nerves and relieve the pain of patients, and the operation of cutting the unilateral lamina is a single-door operation. Such single door surgery typically deflects the lamina laterally, that is, the spinous processes on the lamina are deflected laterally from the original position. Because the original position of the spinous process on the vertebral lamina is positioned in the middle area of the vertebral body on the cross section of the human body, the stress of the lateral mass is uneven by adopting a single-door operation, so that the stress stability of the vertebral body is problematic after the single-door operation. How to design a structure can make the cervical vertebra way of posterior spinal canal shaping operation after, the centrum atress is stable, and the lamina can not towards lateral shifting, is the problem that the skilled person need to solve.
Disclosure of Invention
In view of the above-described drawbacks of the prior art, the present invention solves the technical problem of providing an enlarged cervical spine tube forming and fixing assembly that stabilizes the vertebral body and prevents the lamina from being laterally offset.
To achieve the above and other related objects, the present invention provides an expansion-molding fixing assembly for cervical spine, comprising a folding plate and a fastener;
The folding plate comprises a plugboard piece and a positioning piece, wherein the plugboard piece comprises a plugboard installation part and a plugboard bearing part connected with the plugboard installation part, the plugboard installation part is provided with a plugboard installation hole for installing the fastener, and the plugboard bearing part is connected with a plugboard connection part; the locating piece comprises a locating main body, a locating installation part and a locating insertion part, wherein the locating main body is connected with the locating installation part, the locating installation part is connected with the locating insertion part, and a locating part installation hole for installing the fastener is formed in the locating installation part;
when the folding plate is in a folded state, the insert receiving portion is coplanar with the positioning insert portion, the insert receiving portion is in contact with the positioning piece, and the positioning insert portion is located below the insert receiving portion.
Preferably, the positioning body includes a connection plate and a support plate;
The support plate is connected with the positioning installation part, and a support piece elastic part is arranged on the support plate;
The two ends of the connecting plate are respectively a first end and a second end, the first end of the connecting plate is connected with the plug-in connection part of the plug-in plate, and the second end of the connecting plate is connected with the supporting plate through the supporting piece elastic part;
When the folding plate is in a folding state, the positioning and mounting part is in contact with the plug-in connector bearing part, the supporting plate, the plug-in connector bearing part and the connecting plate enclose a triangular structure, and two ends of the connecting plate respectively prop against the supporting plate and the plug-in connector bearing part.
The plug-in connector comprises a plug-in connector connecting part, a plug-in connector connecting part and a plug-in connector connecting plate, wherein the plug-in connector connecting part comprises a plug-in connector transition part and a plug-in connector elastic sheet;
the support piece elastic part comprises a support piece transition part and a support piece elastic piece, wherein the support piece transition part is connected with the support plate, and the support piece transition part is connected with the connection plate through the support piece elastic piece.
Further, one end of the insert transition part, which is far away from the insert receiving part, is an insert free end, the insert elastic sheet surrounds the insert free end of the insert transition part, and an insert elastic interval is formed between the insert free end of the insert transition part and the insert elastic sheet;
The one end that keeps away from of support piece transition portion is the support free end, the support piece shell fragment around in on the support piece free end of support piece transition portion, support piece free end of support piece transition portion with there is support portion elasticity interval between the support piece shell fragment.
Furthermore, the plug-in receiving part is obliquely arranged relative to the plug-in transition part, and a plug-in part notch is formed at the joint of the plug-in receiving part and the plug-in transition part;
When the folding plate is in a folded state, the first end of the connecting plate abuts against the insert portion recess, and the second end of the connecting plate abuts against the support portion recess.
Preferably, the insert receiving portion is connected to the insert connecting portion through an intermediate plate member;
the positioning main body is a positioning plate, and the positioning installation part is provided with a positioning part limiting groove which penetrates through to one end of the positioning installation part far away from the positioning insertion part;
When the folding plate is in a folding state, the plug-in receiving part is inserted into the locating part limiting groove and is in contact with the locating part limiting groove, and the middle plate, the locating main body and the plug-in receiving part enclose a triangular structure.
Preferably, the plug-in connection part is a middle spring plate, one end of the middle spring plate is connected with the middle plate, and the other end of the middle spring plate is connected with the positioning main body.
Further, when the folding plate is in a folded state, the insert receiving portion is in contact with the bottom surface of the positioning portion limiting groove, and the intermediate plate is in contact with the positioning main body.
Preferably, the plug-in connection part is provided with a plug-in receiving hole;
The positioning plate is provided with a positioning part mounting groove for the insertion of the plug-in connection part, two ends of a connecting shaft are respectively connected with two opposite groove walls of the positioning part mounting groove, and the connecting shaft penetrates through the plug-in connection hole.
Further, when the folding plate is in a folded state, the insert receiving part is in contact with the bottom surface of the positioning part limiting groove.
As described above, the cervical spine canal expansion molding fixing component has the following beneficial effects:
The invention relates to a cervical spine tube expansion forming fixing component which can be applied to double-door spine lifting operation, wherein when the cervical spine tube expansion forming fixing component is used, firstly, notches are cut at two sides of a vertebral plate, then, insert receiving parts of insert plates of two folded plates of the cervical spine tube expansion forming fixing component are respectively inserted into the two notches, then, fasteners are respectively inserted at two sides of the vertebral plate, the fasteners are arranged on insert mounting holes of the insert mounting parts so as to fix the relative positions of the vertebral plate and the insert mounting parts of the folded plates;
In the cervical vertebra canal expansion molding fixing component, the positioning main body is movably connected with the plug-in connection part, so that the positioning piece can rotate relative to the plug-in board piece, the positioning piece can freely turn over at an angle relative to the plug-in board piece, the folding board is easy to fold, the folding board is simple in structure and convenient to manufacture, and can be manufactured into a small and light structure, so that the incision size can be effectively reduced, the wound of a patient is reduced, the operation time can be shortened, the operation safety is improved, the cervical vertebra canal expansion molding fixing component is applied to double-door spine lifting operation, the vertebral board cannot deviate towards the lateral direction, that is, the original physiological mechanical structure of a human body is maintained, and after the double-door spine lifting operation, the vertebral body is stressed stably, so that better rehabilitation of a patient is facilitated.
Drawings
Fig. 1 is a schematic front view showing a structure in which a folding plate of the cervical spine tube expansion-shaping fixing assembly of embodiment 1 is in a folded state and the folding plate is mounted on a lamina and a lateral mass.
Fig. 2 is a schematic perspective view showing a folded plate of the cervical spine tube expansion-molding fixing assembly of embodiment 1 in a folded state, the folded plate being mounted on a lamina and a lateral mass.
Fig. 3 is a schematic top view showing a folded plate of the cervical spine tube expansion-molding fixing assembly of embodiment 1 in a folded state, the folded plate being mounted on a lamina and a lateral mass.
Fig. 4 is a schematic front view showing a structure in which a folded plate of the cervical spine tube expansion-shaping fixing assembly of embodiment 1 is in an initial state and the folded plate is mounted on a spine plate.
Fig. 5 is a schematic top view showing a folded plate of the cervical spine tube expansion-molding fixing assembly of embodiment 1 in an initial state, when the folded plate is mounted on a vertebral plate.
Fig. 6 is a schematic front view showing the structure of the folded plate of the cervical spine tube expansion-shaping fixing assembly of embodiment 1 in an initial state.
Fig. 7 is a schematic perspective view showing a structure in which a folded plate of the cervical spine tube expansion-molding fixing assembly of embodiment 1 is in an initial state.
Fig. 8 is a schematic perspective view showing a folded plate of the cervical spine tube expansion-molding fixing assembly of embodiment 1 in a folded state.
Fig. 9 is a schematic front view showing a structure in which a folded plate of the cervical spine tube expansion-shaping fixing assembly of embodiment 1 is in a folded state.
Fig. 10 is a schematic top view showing a folded plate of the cervical spine tube expansion-molding fixing assembly of embodiment 1 in a folded state.
Fig. 11 is a schematic perspective view showing a folded plate of the cervical spine tube expansion-molding fixing assembly of embodiment 2 in an initial state, when the folded plate is mounted on a vertebral plate.
Fig. 12 is a schematic front view showing a structure in which a folded plate of the cervical spine tube expansion-shaping fixing assembly of example 2 is in an initial state and the folded plate is mounted on a spine plate.
Fig. 13 is a schematic top view showing a folded plate of the cervical spine tube expansion-molding fixing assembly of example 2 in an initial state, when the folded plate is mounted on a vertebral plate.
Fig. 14 is a schematic perspective view showing a folded plate of the cervical spine tube expansion-shaping fixing assembly of example 2 in a folded state, when the folded plate is mounted on a vertebral plate.
Fig. 15 is a schematic front view showing a structure in which a folded plate of the cervical spine tube expansion-shaping fixing assembly of example 2 is in a folded state and the folded plate is mounted on a spine plate.
Fig. 16 is a schematic top view showing a folded plate of the cervical spine tube expansion-shaping fixture of embodiment 2 in a folded state, when the folded plate is mounted on the spine plate.
Fig. 17 is a schematic perspective view showing a structure in which a folded plate of the cervical spine tube expansion-molding fixing assembly of embodiment 2 is in an initial state.
Fig. 18 is a schematic front view showing the structure of the folded plate of the cervical spine tube expansion-shaping fixing assembly of embodiment 2 in an initial state.
Fig. 19 is a schematic top view showing the structure of the folded plate of the cervical spine tube expansion-shaping fixing assembly of example 2 in an initial state.
Fig. 20 is a schematic view showing a bottom perspective view of a folded plate of the cervical spine tube expansion-molding fixing assembly of embodiment 2 in an initial state.
Fig. 21 is a schematic perspective view showing a folded plate of the cervical spine tube expansion-molding fixing assembly of embodiment 2 in a folded state.
Fig. 22 is a schematic front view showing a structure in which a folded plate of the cervical spine tube expansion-shaping fixing assembly of embodiment 2 is in a folded state.
Fig. 23 is a schematic top view showing a folded plate of the cervical spine tube expansion-molding fixing assembly of embodiment 2 in a folded state.
Fig. 24 is a schematic perspective view showing a folded plate of the cervical spine tube expansion-molding fixing assembly of embodiment 3 in a folded state, the folded plate being mounted on a lamina and a lateral mass without a fastener.
Fig. 25 is a schematic view showing a front view of a structure in which a folding plate of the cervical spine tube expansion-shaping fixing assembly of embodiment 3 is in a folded state, the folding plate is mounted on a vertebral plate and a lateral mass, and no fastener is provided.
Fig. 26 is a schematic top view showing the folded plate of the cervical spine tube expansion-shaping fixture of embodiment 3 in a folded state, the folded plate being mounted on the lamina and the lateral mass, and no fastener being provided.
Fig. 27 is a schematic perspective view showing a folded plate of the cervical spine tube expansion-molding fixing assembly of embodiment 3 in an initial state, the folded plate being mounted on a vertebral plate without a fastener.
Fig. 28 is a schematic front view showing a structure in which a folded plate of the cervical spine tube expansion-shaping fixing assembly of example 3 is in an initial state, the folded plate is mounted on a vertebral plate, and no fastener is provided.
Fig. 29 is a schematic top view showing the folded plate of the cervical spine tube expansion-molding fixation assembly of example 3 in an initial state, the folded plate being mounted on the lamina, and no fasteners being provided.
Fig. 30 is a schematic perspective view showing a structure in which a folded plate of the cervical spine tube expansion-molding fixing assembly of embodiment 3 is in an initial state.
Fig. 31 is a schematic front view showing the structure of the folded plate of the cervical spine tube expansion-shaping fixing assembly of embodiment 3 in an initial state.
Fig. 32 is a schematic top view showing the structure of the folded plate of the cervical spine tube expansion-shaping fixing assembly of example 3 in an initial state.
Fig. 33 is a schematic perspective view showing a construction of a fork strap section of a folding plate of a cervical spine tube expansion-molding fixing assembly of embodiment 3.
Fig. 34 is a schematic perspective view showing a positioning member of a folding plate of a cervical spine tube expansion-molding fixing assembly of embodiment 3.
Fig. 35 is a schematic perspective view showing a folded plate of the cervical spine tube expansion-molding fixing assembly of embodiment 3 in a folded state.
Fig. 36 is a schematic front view showing the structure of the folded plate of the cervical spine tube expansion-shaping fixing assembly of embodiment 3 in a folded state.
Fig. 37 is a schematic top view showing the structure of the folded plate of the cervical spine tube expansion-shaping fixing assembly of embodiment 3 in a folded state.
Description of the reference numerals
100. Folding plate
110. Fork strap section
111. Plug-in mounting part
112. Plug-in connector receiving part
1120. Clamping groove
113. Plug-in mounting hole
114. Plug-in connection
1141. Plug-in transition
1142. Plug-in spring piece
1143. Elastic spacing of inserting sheet parts
1144. Plug-in receiving hole
115. Insert part recess
116. Intermediate plate
120. Positioning piece
121. Positioning main body
1211. Connecting plate
1212. Support plate
122. Positioning and mounting part
1220. Positioning part mounting hole
1221. Positioning part limiting groove
1222. Groove bottom surface of positioning part limiting groove
1223. Positioning protruding block
123. Positioning insertion part
124. Elastic part of support piece
1241. Support transition
1242. Spring piece of supporting piece
1243. Elastic spacing of support parts
125. Support portion recess
126. Positioning part mounting groove
127. Connecting shaft
200. Fastening piece
1. Vertebral lamina
2. Incision
3. Side block
Detailed Description
Further advantages and effects of the present invention will become apparent to those skilled in the art from the disclosure of the present invention, which is described by the following specific examples.
Please refer to the accompanying drawings. It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for illustration purposes only and should not be construed as limiting the invention to the extent that it can be practiced, since modifications, changes in the proportions, or otherwise, used in the practice of the invention, are not intended to be critical to the essential characteristics of the invention, but are intended to fall within the spirit and scope of the invention. Also, the terms such as "upper," "lower," "left," "right," "middle," and "a" and the like recited in the present specification are merely for descriptive purposes and are not intended to limit the scope of the invention, but are intended to provide relative positional changes or modifications without materially altering the technical context in which the invention may be practiced.
Example 1
As shown in fig. 1 to 10, the cervical spine tube expansion-molding fixing assembly of the present embodiment includes a folding plate 100 and a fastener 200;
The folding plate 100 comprises a plugboard 110 and a positioning piece 120, wherein the plugboard 110 comprises a plugboard mounting part 111 and a plugboard receiving part 112 connected with the plugboard mounting part 111, the plugboard mounting part 111 is provided with a plugboard mounting hole 113 for mounting a fastener 200, the plugboard receiving part 112 is connected with a plugboard connecting part 114, the positioning piece 120 comprises a positioning main body 121, a positioning mounting part 122 and a positioning inserting part 123, the positioning main body 121 is connected with the positioning mounting part 122, the positioning mounting part 122 is connected with the positioning inserting part 123, and the positioning mounting part 122 is provided with a positioning part mounting hole 1220 for mounting the fastener 200;
when the folding plate 100 is in the folded state, the card receiving portion 112 is coplanar with the positioning insertion portion 123, the card receiving portion 112 is in contact with the positioning piece 120, and the positioning insertion portion 123 is below the card receiving portion 112.
When the cervical spine tube expansion molding fixing assembly is used in a double-door spine lifting operation, firstly, the cuts 2 are cut at two sides of the vertebral plate 1, then the plug-in receiving parts 112 of the plug-in plate pieces 110 of the two cervical spine tube expansion molding fixing assemblies are respectively inserted into the two cuts 2, then the fasteners 200 are respectively implanted at two sides of the vertebral plate 1, the fasteners 200 are arranged on the plug-in mounting holes 113 of the plug-in mounting parts 111, so that the relative positions of the vertebral plate 1 and the plug-in mounting parts 111 of the folding plate 100 are fixed, the vertebral plate 1 is lifted to the right back by a preset distance by means of vertebral plate pliers, the preset distance is about 4mm, the folding plate 100 is folded, the positioning piece 120 of the folding plate 100 is inserted into the cuts 2, at the moment, the plug-in receiving parts 112 of the lifted plug-in plate pieces 110 are contacted with the positioning piece 120, and the positioning piece 120 provides supporting force for the plug-in plate pieces 110, so that the position of the folding plate 100 in a folding state is stable, the position of one side block 3 is arranged on the opposite side of the mounting hole 122, namely, the fastener is arranged on the other side of the mounting part 100, and the side of the mounting plate 100 is fixed;
The insert receiving portion 112 of the insert member 110 is inserted into the cutout 2 before the folding plate 100 is folded, and the positioning insertion portion 123 of the positioning member 120 is inserted into the cutout 2 after the folding plate 100 is folded. The folding plate 100 is not entirely inserted into the slit 2, and only the positioning insertion portion 123 is inserted into the slit 2 after the folding plate 100 is mounted, so that the slit 2 can be effectively downsized.
In the cervical spine tube expansion molding fixing assembly, the positioning main body 121 is movably connected with the plug-in connection part 114, so that the positioning part 120 can rotate relative to the plug-in plate 110, the positioning part 120 can freely turn over at an angle relative to the plug-in plate 110, the folding plate 100 is easy to fold, the folding plate 100 is simple in structure and convenient to manufacture, and can be manufactured into a small and light structure, so that the size of the incision 2 can be effectively reduced, the wound of a patient is reduced, the folding plate 100 is easy and convenient to operate, the operation time can be shortened, the operation safety is improved, the cervical spine tube expansion molding fixing assembly is applied to double-door spine lifting operation, the vertebral plate 1 cannot deviate towards the lateral direction, that is, the original physiological mechanical structure of a human body is maintained, and after the double-door spine lifting operation, the vertebral body stress is stable, so that better rehabilitation of the patient is facilitated.
In this embodiment, the folding plate 100 is made of a titanium alloy material. The folding plate 100 is manufactured using 3D printing techniques, without being limited by conventional machining processes. The fasteners 200 are screws, the number of the fasteners 200 is 4, two insert mounting holes 113 for mounting the fasteners 200 are formed in the insert mounting portion 111, and two positioning portion mounting holes 1220 for mounting the fasteners 200 are formed in the positioning mounting portion 122.
The positioning body 121 includes a connecting plate 1211 and a support plate 1212;
The support plate 1212 is connected to the positioning mounting portion 122, and the support plate 1212 is provided with a support elastic portion 124;
The connection plate 1211 has a first end and a second end, respectively, the first end of the connection plate 1211 is connected to the card connection portion 114 of the card member 110, and the second end of the connection plate 1211 is connected to the support plate 1212 through the support elastic portion 124;
When the folding plate 100 is in the folded state, the positioning mounting portion 122 is in contact with the card receiving portion 112, the support plate 1212, the card receiving portion 112, and the connection plate 1211 enclose a triangular structure, and both ends of the connection plate 1211 respectively bear against the support plate 1212 and the card receiving portion 112.
The first end of the connecting plate 1211 is connected to the plug-in connection 114 of the plug-in board 110, and the second end of the connecting plate 1211 is connected to the support elastic portion 124, so that the connecting plate 1211 is movably connected to the plug-in board 110, and the connecting plate 1211 is movably connected to the support plate 1212.
The positioning and mounting part 122 contacts with the insert-receiving part 112, so that the positioning and mounting part 122 supports the insert-receiving part 112, and after the folding plate 100 is connected with the vertebral plate 1 and the side block 3 through the fastener 200, the triangular structure surrounded by the support plate 1212, the insert-receiving part 112 and the connecting plate 1211 is a stable triangular self-locking structure, so that the position of the folding plate 100 is stable.
The plug-in connection part 114 comprises a plug-in transition part 1141 and a plug-in spring 1142, wherein the plug-in transition part 1141 is connected with the plug-in receiving part 112, and the plug-in transition part 1141 is connected with the connection plate 1211 through the plug-in spring 1142;
The support elastic portion 124 includes a support transition portion 1241 and a support elastic piece 1242, the support transition portion 1241 is connected with the support plate 1212, and the support transition portion 1241 is connected with the connection plate 1211 through the support elastic piece 1242. The support spring 1242 is simple in structure and convenient to process, and the support spring 1242 is arranged so as to facilitate the rotation of the support plate 1212 relative to the connection plate 1211.
In order to make the structure more compact and enable the connection plate 1211 to rotate stably relative to the socket plate 110, the end of the socket portion 1141 away from the socket portion 112 is a socket free end, the socket spring 1142 surrounds the socket free end of the socket portion 1141, and a socket elastic space 1143 is provided between the socket free end of the socket portion 1141 and the socket spring 1142;
in order to make the structure more compact and make the support plate 1212 stably rotate relative to the connection plate 1211, the end of the support transition part 1241 far away from the support plate 1212 is a support free end, the support elastic piece 1242 surrounds the support free end of the support transition part 1241, and a support elastic space 1243 is provided between the support free end of the support transition part 1241 and the support elastic piece 1242.
The plug-in receiving part 112 is obliquely arranged relative to the plug-in transition part 1141, and a plug-in part notch 115 is formed at the joint of the plug-in receiving part 112 and the plug-in transition part 1141;
When the folding plate 100 is in the folded state, the first end of the connecting plate 1211 abuts against the insert portion recess 115, and the second end of the connecting plate 1211 abuts against the support portion recess 125. This structure makes the triangular structure surrounded by the support plate 1212, the card socket 112, and the connection plate 1211 more stable.
The insert mounting portion 111 is disposed obliquely with respect to the insert receiving portion 112, and this structure allows the insert mounting portion 111 to be more favorably fitted to the lamina 1 when the insert receiving portion 112 is inserted into the cutout 2.
In this embodiment, the included angle between the insert receiving portion 112 and the insert transition portion 1141 is 90 degrees. The angle between the positioning mounting portion 122 and the positioning insertion portion 123 is 90 degrees.
When the folding plate 100 is in the initial state, the included angle between the insert receiving portion 112 and the connecting plate 1211 is equal to 90 degrees, two insert mounting holes 113 are formed in the insert mounting portion 111, after the two insert mounting holes 113 are used for inserting the fasteners 200, the insert mounting portion 111 is connected with the vertebral plate 1, the insert receiving portion 112 at the lower portion of the insert mounting portion 111 is of a vertical structure, the insert receiving portion 112 is an insert sheet, and the insert receiving portion 112 can be inserted into the notch 2. The folding plate 100 is in a folded state, the fork strap section 110 and the plug-in connection 114 to which the fork strap section 110 is connected are restrained, and the portion of the support plate 1212 connected to the connection plate 1211 can serve as a restraint for the connection plate 1211. After the two positioning portion mounting holes 1220 on the positioning mounting portion 122 mount the fastener 200, the positioning mounting portion 122 is fixed to the side block 3 of the human body. When the folding board 100 is in the folded state, the included angle between the insert-receiving portion 112 and the connecting plate 1211 is smaller than 90 degrees, the positioning insertion portion 123 can be inserted into the notch 2, and the insert-receiving portion 112 can be mounted on the positioning mounting portion 122, so that the support plate 1212, the insert-receiving portion 112 and the connecting plate 1211 enclose a stable triangular self-locking structure. In this embodiment, the connection plate 1211 is a thin plate.
Example 2
As shown in fig. 11 to 23, the present embodiment differs from embodiment 1 in that the card receiving portion 112 is connected to the card connecting portion 114 through the intermediate plate member 116;
The positioning main body 121 is a positioning plate, the positioning installation part 122 is provided with a positioning part limiting groove 1221, and the positioning part limiting groove 1221 penetrates to one end of the positioning installation part 122 far away from the positioning insertion part 123;
when the folding plate 100 is in a folded state, the card receiving portion 112 is inserted into the positioning portion limiting groove 1221, and the card receiving portion 112 contacts the positioning portion limiting groove 1221, and the middle plate 116, the positioning body 121 and the card receiving portion 112 enclose a triangular structure.
The insert receiving portion 112 is inserted into the positioning portion limiting groove 1221, and the insert receiving portion 112 contacts with the positioning portion limiting groove 1221, so that the position of the insert receiving portion 112 is stable, and the middle plate 116, the positioning body 121 and the insert receiving portion 112 enclose a triangular structure, so that the positions of the middle plate 116, the positioning body 121 and the insert receiving portion 112 are stable.
The plug-in connection portion 114 is a middle spring, one end of the middle spring is connected to the middle plate 116, and the other end of the middle spring is connected to the positioning body 121. The intermediate spring plate has a simple structure and facilitates rotation of the positioning body 121 relative to the intermediate plate 116.
When the folding plate 100 is in the folded state, the card receiving portion 112 contacts the bottom surface 1222 of the positioning portion stopper groove, and the intermediate plate 116 contacts the positioning body 121. The bottom surface 1222 of the detent recess provides a stable support force for the insert receiver 112. The middle plate 116 contacts with the positioning body 121, so that the triangle structure surrounded by the middle plate 116, the positioning body 121 and the insert receiving portion 112 is a stable triangle self-locking structure, so that the position of the folding plate 100 is stable.
When the folding plate 100 is in the initial state, the included angle between the insert receiving portion 112 and the positioning main body 121 is equal to 90 degrees, two insert mounting holes 113 are formed in the insert mounting portion 111 for inserting the fasteners 200, the insert mounting portion 111 is connected with the vertebral plate 1 through the fasteners 200, the insert receiving portion 112 at the lower portion of the insert mounting portion 111 is of a vertical structure, the insert receiving portion 112 is an insert sheet, and the insert receiving portion 112 can be inserted into the notch 2. The two positioning portion mounting holes 1220 on the positioning mounting portion 122 are used for fixing the positioning mounting portion 122 to the side block 3 of the human body after the fastening member 200 is mounted. When the folding plate 100 is in a folded state, the included angle between the insert-receiving portion 112 and the positioning main body 121 is smaller than 90 degrees, the positioning insertion portion 123 can be inserted into the notch 2, the insert-receiving portion 112 is inserted into the positioning portion limiting groove 1221, the insert-receiving portion 112 is in contact with the positioning portion limiting groove 1221, the middle plate 116, the positioning main body 121 and the insert-receiving portion 112 enclose a triangular structure, and the triangular structure enclosed by the middle plate 116, the positioning main body 121 and the insert-receiving portion 112 is a stable triangular self-locking structure, so that the folding plate 100 is stable in position. The card receiving portion 112 contacts with a bottom surface 1222 of the positioning portion limiting groove, the bottom surface 1222 of the positioning portion limiting groove supports the card receiving portion 112, and the positioning portion limiting groove 1221 limits the card receiving portion 112.
In the present embodiment, the positioning portion limiting groove 1221 is provided with the positioning protrusion 1223, the card receiving portion 112 is provided with the card slot 1120, and when the folding board 100 is in the folded state, the positioning protrusion 1223 is inserted into the card slot 1120, so that the folding board 100 keeps a stable folded state.
The middle plate 116 has a middle plate inclined surface at one end far from the positioning body 121, and the positioning body 121 has a positioning portion inclined surface at one end far from the middle plate 116, and the middle plate inclined surface contacts with the positioning portion inclined surface when the folding plate 100 is in a folded state, so that the middle plate 116 and the positioning body 121 do not interfere with each other during the folding process of the folding plate 100.
Example 3
As shown in fig. 24 to 37, the present embodiment is different from embodiment 2 in that a card receiving hole 1144 is provided in the card connecting portion 114;
The positioning plate is provided with a positioning part mounting groove 126 for inserting the plug-in connection part 114, two ends of a connecting shaft 127 are respectively connected with two opposite groove walls of the positioning part mounting groove 126, and the connecting shaft 127 passes through the plug-in receiving hole 1144
When the folding plate 100 is in the folded state, the card receiving portion 112 contacts the bottom surface 1222 of the positioning portion stopper groove.
When the folding plate 100 is in the initial state, the included angle between the insert receiving portion 112 and the positioning main body 121 is equal to 90 degrees, two insert mounting holes 113 are formed in the insert mounting portion 111 for inserting the fasteners 200, the insert mounting portion 111 is connected with the vertebral plate 1 through the fasteners 200, the insert receiving portion 112 at the lower portion of the insert mounting portion 111 is of a vertical structure, the insert receiving portion 112 is an insert sheet, and the insert receiving portion 112 can be inserted into the notch 2. The insert connecting portion 114 is provided with an insert receiving hole 1144, the insert receiving hole 1144 is connectable with the connecting shaft 127, and after the two positioning portion mounting holes 1220 on the positioning mounting portion 122 are used for mounting the fastener 200, the positioning mounting portion 122 is fixed with the side block 3 of the human body. When the folding plate 100 is in a folded state, the included angle between the insert-receiving portion 112 and the positioning main body 121 is smaller than 90 degrees, the positioning insertion portion 123 can be inserted into the notch 2, the insert-receiving portion 112 is inserted into the positioning portion limiting groove 1221, the insert-receiving portion 112 is in contact with the positioning portion limiting groove 1221, the middle plate 116, the positioning main body 121 and the insert-receiving portion 112 enclose a triangular structure, and the triangular structure enclosed by the middle plate 116, the positioning main body 121 and the insert-receiving portion 112 is a stable triangular self-locking structure, so that the folding plate 100 is stable in position. The card receiving portion 112 contacts with a bottom surface 1222 of the positioning portion limiting groove, the bottom surface 1222 of the positioning portion limiting groove supports the card receiving portion 112, and the positioning portion limiting groove 1221 limits the card receiving portion 112.
The above embodiments are merely illustrative of the principles of the present invention and its effectiveness, and are not intended to limit the invention. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications and variations of the invention be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.
Claims (4)
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211037190.5A CN115444527B (en) | 2022-08-26 | 2022-08-26 | Cervical spinal canal enlargement and shaping fixation components |
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| CN202211037190.5A CN115444527B (en) | 2022-08-26 | 2022-08-26 | Cervical spinal canal enlargement and shaping fixation components |
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| CN117017462B (en) * | 2023-09-07 | 2024-08-02 | 北京大学第三医院（北京大学第三临床医学院） | Be used for cervical vertebra vertebral canal to enlarge forming device and installation device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104981214A (en) * | 2012-11-19 | 2015-10-14 | 詹姆斯·C·罗宾逊 | Laminoplasty system |
| CN113786232A (en) * | 2021-09-08 | 2021-12-14 | 上海三友医疗器械股份有限公司 | Connecting assembly for cervical vertebra posterior approach |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10226284B2 (en) * | 2011-09-01 | 2019-03-12 | Globus Medical, Inc. | Laminoplasty plates, systems, and devices, and methods relating to the same |
| US10238434B2 (en) * | 2014-03-20 | 2019-03-26 | Spinefrontier, Inc | System and method for spinal decompression |
| US11389302B2 (en) * | 2018-12-06 | 2022-07-19 | Life Spine, Inc. | Spinal facet joint and laminoplasty implant |
| CN211534746U (en) * | 2019-07-25 | 2020-09-22 | 何静 | Novel cervical canal enlarges art specialized tool and nail board system |
| CN215129880U (en) * | 2021-02-18 | 2021-12-14 | 上海三友医疗器械股份有限公司 | Cervical vertebra posterior connection assembly and its installation tool |
| CN217014182U (en) * | 2021-03-03 | 2022-07-22 | 北京大学第三医院（北京大学第三临床医学院） | Cervical vertebra posterior approach door opening plate |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104981214A (en) * | 2012-11-19 | 2015-10-14 | 詹姆斯·C·罗宾逊 | Laminoplasty system |
| CN113786232A (en) * | 2021-09-08 | 2021-12-14 | 上海三友医疗器械股份有限公司 | Connecting assembly for cervical vertebra posterior approach |
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