Cervical spinal canal enlargement and shaping fixation components
By designing folding plates and fastener components for the cervical spinal canal, the problem of lateral deviation of the lamina during the posterior cervical spinal canal molding surgery is solved, and the stability of the vertebrae and surgical safety are improved.
Patent Information
- Application Number
- CN202211037190.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-08-26
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2042-08-26
AI Technical Summary
In cervical posterior spinal canal molding surgery, single-door opening surgery leads to lateral deviation of the lamina, resulting in uneven stress on the vertebrae and stability problems.
Design a cervical spinal canal enlargement and forming fixing assembly, including folding plates and fasteners, through the structure of insertion plates and positioning members, to ensure that the laminar plate does not shift laterally during double-open door ridge lifting surgery, and adopts positioning body and support The elastic parts of the plates realize stable fixation of the laminar plates.
This component maintains the original physiological and mechanical structure of the laminar during double-door ridge lifting surgery, ensures the stability of the vertebral body's stress, reduces the incision size, reduces patient trauma, simplifies the surgical process, and improves surgical safety.
Smart Images
Figure CN115444527B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of medical devices, and in particular to a cervical vertebral canal enlargement molding and fixation component. Background Art
[0002] At present, in some posterior cervical laminoplasty surgeries, only one side of the vertebral lamina is cut open and pulled obliquely backward to expand the spinal canal area, release the compressed nerves, and relieve the patient's pain. This surgery of cutting one side of the vertebral lamina is a single-door surgery. This single-door surgery usually causes the vertebral lamina to shift laterally, that is, the spinous processes on the vertebral lamina will deflect laterally and deviate from the original position. Since the original position of the spinous processes on the vertebral lamina is in the middle area of the vertebral body in the cross-section of the human body, the use of a single-door surgery will cause uneven force on the lateral mass, resulting in problems with the force stability of the vertebral body after the single-door surgery. How to design a structure that can stabilize the force on the vertebral body and prevent the vertebral lamina from shifting laterally after posterior cervical laminoplasty surgery is a problem that needs to be solved by technical personnel in this field. Summary of the invention
[0003] In view of the above-mentioned shortcomings of the prior art, the technical problem solved by the present invention is to provide a cervical vertebral canal enlargement molding and fixation assembly that stabilizes the force on the vertebral body and prevents the vertebral plate from shifting laterally.
[0004] To achieve the above-mentioned and other related purposes, the present invention provides a cervical vertebral canal enlargement molding and fixation assembly, comprising: a folding plate and a fastener;
[0005] The folding plate comprises a plug-in plate member and a positioning member, the plug-in plate member comprises a plug-in mounting portion and a plug-in receiving portion connected to the plug-in mounting portion, the plug-in mounting portion is provided with a plug-in mounting hole for installing the fastener, 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 inserting portion, the positioning body is connected to the positioning mounting portion, the positioning mounting portion is connected to the positioning inserting portion, and the positioning mounting portion is provided with a positioning portion mounting hole for installing the fastener; 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 member;
[0006] When the folding plate is in a folded state, the plug-in receiving portion is coplanar with the positioning inserting portion, the plug-in receiving portion is in contact with the positioning member, and the positioning inserting portion is located below the plug-in receiving portion.
[0007] Preferably, the positioning body comprises a connecting plate and a supporting plate;
[0008] The support plate is connected to the positioning and mounting portion, and a support elastic portion is provided on the support plate;
[0009] 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 to the plug-in connecting portion of the plug-in plate, and the second end of the connecting plate is connected to the supporting plate through the supporting elastic portion;
[0010] When the folding plate is in a folded state, the positioning and mounting portion contacts the plug-in receiving portion, the supporting plate, the plug-in receiving portion and the connecting plate form a triangular structure, and the two ends of the connecting plate respectively support the supporting plate and the plug-in receiving portion.
[0011] Furthermore, the plug-in connecting portion includes a plug-in transition portion and a plug-in spring piece; the plug-in transition portion is connected to the plug-in receiving portion, and the plug-in transition portion is connected to the connecting plate through the plug-in spring piece;
[0012] The support member elastic portion includes a support member transition portion and a support member spring sheet; the support member transition portion is connected to the support plate member, and the support member transition portion is connected to the connecting plate member through the support member spring sheet.
[0013] Furthermore, one end of the plug-in transition portion away from the plug-in receiving portion is a plug-in free end, the plug-in spring sheet surrounds the plug-in free end of the plug-in transition portion, and there is an elastic spacing of the plug-in sheet portion between the plug-in free end of the plug-in transition portion and the plug-in spring sheet;
[0014] The end of the support member transition part away from the support plate is the support member free end, the support member spring sheet surrounds the support member free end of the support member transition part, and there is an elastic support member interval between the support member free end of the support member transition part and the support member spring sheet.
[0015] Furthermore, the plug-in receiving portion is inclined relative to the plug-in transition portion, and a plug-in portion recess is formed at the connection between the plug-in receiving portion and the plug-in transition portion; a support portion recess is provided at the connection between the support plate and the support transition portion;
[0016] When the folding plate is in a folded state, the first end of the connecting plate member abuts against the recess of the inserting portion, and the second end of the connecting plate member abuts against the recess of the supporting portion.
[0017] Preferably, the plug-in receiving portion is connected to the plug-in connecting portion via an intermediate plate;
[0018] The positioning body is a positioning plate; the positioning installation portion is provided with a positioning portion limiting groove, and the positioning portion limiting groove passes through to an end of the positioning installation portion away from the positioning insertion portion;
[0019] When the folding plate is in a folded state, the plug-in receiving portion is inserted into the limiting groove of the positioning portion, and the plug-in receiving portion contacts the limiting groove of the positioning portion; the intermediate plate, the positioning body and the plug-in receiving portion form a triangular structure.
[0020] Preferably, the plug-in connecting portion is an intermediate spring sheet, one end of the intermediate spring sheet is connected to the intermediate plate, and the other end of the intermediate spring sheet is connected to the positioning body.
[0021] Furthermore, when the folding plate is in a folded state, the plug-in receiving portion contacts the bottom surface of the limiting groove of the positioning portion, and the intermediate plate contacts the positioning body.
[0022] Preferably, the plug-in connection portion is provided with a plug-in receiving hole;
[0023] The positioning plate is provided with a positioning portion installation groove for inserting the plug-in connecting portion, two ends of a connecting shaft are respectively connected to two oppositely arranged groove walls of the positioning portion installation groove, and the connecting shaft passes through the plug-in receiving hole.
[0024] Furthermore, when the folding plate is in a folded state, the plug-in receiving portion contacts the bottom surface of the limiting groove of the positioning portion.
[0025] As described above, the cervical vertebral canal enlargement molding and fixation assembly of the present invention has the following beneficial effects:
[0026] The cervical vertebral canal enlargement molding fixation assembly of the present invention can be applied to double-door spinal lifting surgery. When the cervical vertebral canal enlargement molding fixation assembly is used, an incision is first made on both sides of the vertebral plate, and then the plug-in receiving parts of the plug-in plate parts of the folding plates of the two cervical vertebral canal enlargement molding fixation assemblies are respectively inserted into the two incisions, and then fasteners are respectively implanted on both sides of the vertebral plate, and the fasteners are installed on the plug-in mounting holes of the plug-in mounting parts, so that the relative positions of the vertebral plate and the plug-in mounting parts of the folding plates are fixed; the vertebral plate is pulled back by a preset distance, the folding plate is folded, and the positioning piece of the folding plate is inserted into the incision. At this time, the positioning insertion part is under the plug-in receiving part, and the plug-in receiving part of the lifted plug-in plate part contacts the positioning piece, and the positioning piece provides supporting force for the plug-in plate part; a fastener is implanted on one of the side blocks, and the fastener is installed on the positioning part mounting hole of the positioning mounting part, so that the relative positions of the positioning pieces of one of the side blocks and the positioning piece of the folding plate are fixed; after completing the installation of the folding plate on one side, the folding plate on the other side can be installed in the same way;
[0027] In the cervical vertebral canal expansion molding and fixation assembly, the positioning body is movably connected to the plug-in connecting part, so that the positioning part can rotate relative to the plug-in plate part, and the positioning part can freely flip the angle relative to the plug-in plate part. The folding plate is easy to fold, the folding plate has a simple structure, is easy to manufacture, and can be manufactured into a small and light structure, which can effectively reduce the incision size and reduce the patient's trauma; the folding plate is easy to operate, can shorten the operation time, and increase the safety of the operation; the cervical vertebral canal expansion molding and fixation assembly is used in double-door spinal lifting surgery, so that the vertebral plate will not shift laterally, that is, the original physiological and mechanical structure of the human body is maintained. After the double-door spinal lifting surgery, the vertebral body is stably stressed, which is conducive to better recovery of the patient. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] Figure 1 The folding plate of the cervical vertebral canal expansion molding and fixation assembly of Example 1 is in a folded state, and is a schematic diagram of the front view structure when the folding plate is installed on the vertebral plate and the lateral mass.
[0029] Figure 2 The folding plate of the cervical vertebral canal enlargement molding and fixation assembly of Example 1 is in a folded state, and is a schematic diagram of the three-dimensional structure when the folding plate is installed on the vertebral plate and the lateral mass.
[0030] Figure 3 The folding plate of the cervical vertebral canal enlargement molding and fixation assembly of Example 1 is in a folded state, and is a top view structural schematic diagram when the folding plate is installed on the vertebral plate and the lateral mass.
[0031] Figure 4 The folding plate of the cervical vertebral canal expansion molding and fixation assembly of Example 1 is in an initial state, and is a schematic diagram of the front view structure when the folding plate is installed on the vertebral plate.
[0032] Figure 5 The folding plate of the cervical vertebral canal expansion molding and fixation assembly of Example 1 is in an initial state, and is a schematic diagram of the top view of the structure when the folding plate is installed on the vertebral plate.
[0033] Figure 6 It is a schematic diagram of the front view structure of the folding plate of the cervical vertebral canal expansion molding and fixation assembly of Example 1 when it is in an initial state.
[0034] Figure 7 It is a schematic diagram of the three-dimensional structure of the folding plate of the cervical vertebral canal expansion molding and fixation assembly of Example 1 when it is in an initial state.
[0035] Figure 8 It is a schematic diagram of the three-dimensional structure of the folding plate of the cervical vertebral canal expansion molding and fixation assembly of Example 1 when it is in a folded state.
[0036] Fig. 9It is a schematic diagram of the front view structure of the folding plate of the cervical vertebral canal expansion molding and fixation assembly of Example 1 when it is in a folded state.
[0037] Fig.10 It is a schematic diagram of the top view of the structure of the folding plate of the cervical vertebral canal expansion molding and fixation assembly of Example 1 when it is in a folded state.
[0038] Fig.11 The folding plate of the cervical vertebral canal expansion molding and fixation assembly of Example 2 is in an initial state, and is a schematic diagram of the three-dimensional structure when the folding plate is installed on the vertebral plate.
[0039] Fig.12 The folding plate of the cervical vertebral canal expansion molding and fixation assembly of Example 2 is in an initial state, and is a schematic diagram of the front view structure when the folding plate is installed on the vertebral plate.
[0040] Fig.13 The folding plate of the cervical vertebral canal expansion molding and fixation assembly of Example 2 is in an initial state, and is a schematic diagram of the top view of the structure when the folding plate is installed on the vertebral plate.
[0041] Fig.14 The folding plate of the cervical vertebral canal expansion molding and fixation assembly of Example 2 is in a folded state, and is a schematic diagram of the three-dimensional structure when the folding plate is installed on the vertebral plate.
[0042] Fig.15 The folding plate of the cervical vertebral canal expansion molding and fixation assembly of Example 2 is shown in a folded state, and the main structural schematic diagram when the folding plate is installed on the vertebral plate.
[0043] Fig.16 The folding plate of the cervical vertebral canal expansion molding and fixation assembly of Example 2 is in a folded state, and is a schematic diagram of the top view of the structure when the folding plate is installed on the vertebral plate.
[0044] Fig.17 It is a schematic diagram of the three-dimensional structure of the folding plate of the cervical vertebral canal expansion molding and fixation assembly of Example 2 when it is in the initial state.
[0045] Fig.18 It is a schematic diagram of the front view structure of the folding plate of the cervical vertebral canal expansion molding and fixation assembly of Example 2 when it is in the initial state.
[0046] Fig.19 It is a schematic diagram of the top view of the structure of the folding plate of the cervical vertebral canal expansion molding and fixation assembly of Example 2 when it is in the initial state.
[0047] Fig. 20 It is a schematic diagram of the bottom three-dimensional structure of the folding plate of the cervical vertebral canal expansion molding and fixation assembly of Example 2 when it is in an initial state.
[0048] Fig.21 It is a schematic diagram of the three-dimensional structure of the folding plate of the cervical vertebral canal expansion molding and fixation assembly of Example 2 when it is in a folded state.
[0049] Fig. 22 It is a schematic diagram of the front view structure of the folding plate of the cervical vertebral canal expansion molding and fixation assembly of Example 2 when it is in a folded state.
[0050] Fig.23 The diagram shows a top view of the structure of the folding plate of the cervical vertebral canal expansion molding and fixation assembly of Example 2 when it is in a folded state.
[0051] Fig.24 The folding plate of the cervical vertebral canal expansion molding and fixation assembly of Example 3 is in a folded state, the folding plate is installed on the vertebral plate and the lateral mass, and a three-dimensional structural schematic diagram when no fasteners are provided.
[0052] Fig.25 The folding plate of the cervical vertebral canal expansion molding and fixation assembly of Example 3 is shown in a folded state, the folding plate is installed on the vertebral plate and the lateral mass, and the front view structural schematic diagram when no fasteners are set.
[0053] Fig.26 The folding plate of the cervical vertebral canal expansion molding and fixation assembly of Example 3 is in a folded state, the folding plate is installed on the vertebral plate and the lateral mass, and a top view structural schematic diagram when no fasteners are provided.
[0054] Fig. 27 The folding plate of the cervical vertebral canal expansion molding and fixation assembly of Example 3 is shown in an initial state, the folding plate is installed on the vertebral plate, and a three-dimensional structural schematic diagram when no fasteners are provided.
[0055] Fig.28 The folding plate of the cervical vertebral canal expansion molding and fixation assembly of Example 3 is shown in an initial state, the folding plate is installed on the vertebral plate, and the main structural schematic diagram when no fasteners are set.
[0056] Fig.29 The folding plate of the cervical vertebral canal expansion molding and fixation assembly of Example 3 is shown in an initial state, the folding plate is installed on the vertebral plate, and a top view structural schematic diagram when no fasteners are provided.
[0057] Fig.30 It is a schematic diagram of the three-dimensional structure of the folding plate of the cervical vertebral canal expansion molding and fixation assembly of Example 3 when it is in an initial state.
[0058] Fig.31 It is a schematic diagram of the front view structure of the folding plate of the cervical vertebral canal expansion molding and fixation assembly of Example 3 when it is in the initial state.
[0059] Fig.32It is a schematic diagram of the top view of the structure of the folding plate of the cervical vertebral canal expansion molding and fixation assembly of Example 3 when it is in the initial state.
[0060] Fig.33 The diagram shows a three-dimensional structure of the inserting plate member of the folding plate of the cervical vertebral canal expansion molding and fixation assembly of Example 3.
[0061] Fig.34 Shown is a three-dimensional structural schematic diagram of a positioning piece of a folding plate of a cervical vertebral canal enlargement molding and fixation assembly of Example 3.
[0062] Fig.35 It is a schematic diagram of the three-dimensional structure of the folding plate of the cervical vertebral canal expansion molding and fixation assembly of Example 3 when it is in a folded state.
[0063] Fig.36 It is a schematic diagram of the front view structure of the folding plate of the cervical vertebral canal expansion molding and fixation assembly of Example 3 when it is in a folded state.
[0064] Fig.37 It is a schematic diagram of the top view of the structure of the folding plate of the cervical vertebral canal expansion molding and fixation assembly of Example 3 when it is in a folded state.
[0065] Description of Figure Numbers
[0066] 100 Folding Plate
[0067] 110 plug-in board
[0068] 111 Plugin Installation
[0069] 112 Plug-in Acceptance Department
[0070] 1120 Card Slot
[0071] 113 Plug-in mounting hole
[0072] 114 Plug-in connection
[0073] 1141 Plug-in Transition Department
[0074] 1142 plug-in shrapnel
[0075] 1143 Elastic spacer of insert
[0076] 1144 Plug-in receiving hole
[0077] 115 Insertion notch
[0078] 116 Intermediate plate
[0079] 120 Positioning piece
[0080] 121 Positioning the subject
[0081] 1211 Connecting plate
[0082] 1212 Support plate
[0083] 122 Positioning and installation part
[0084] 1220 Positioning part mounting hole
[0085] 1221 Positioning part limit groove
[0086] 1222 Bottom surface of the positioning groove of the positioning part
[0087] 1223 Positioning bump
[0088] 123 Positioning insertion part
[0089] 124 support member elastic portion
[0090] 1241 Support transition part
[0091] 1242 Supporting shrapnel
[0092] 1243 Support elastic spacer
[0093] 125 Support notch
[0094] 126 Positioning unit installation slot
[0095] 127 Connecting shaft
[0096] 200 Fasteners
[0097] 1 lamina
[0098] 2. Incision
[0099] 3 Side Blocks DETAILED DESCRIPTION
[0100] The following is a description of the implementation of the present invention by means of specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.
[0101] Please refer to the attached drawings. It should be noted that the structures, proportions, sizes, etc. illustrated in the attached drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the effects and purposes that can be achieved by the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the present invention. The change or adjustment of their relative relationship should also be regarded as the scope of the implementation of the present invention without substantially changing the technical content.
[0102] Example 1
[0103] like Figures 1 to 10 As shown, the cervical vertebral canal enlargement molding and fixation assembly of this embodiment includes: a folding plate 100 and a fastener 200;
[0104] The folding plate 100 includes a plug-in plate 110 and a positioning member 120. The plug-in plate 110 includes a plug-in mounting portion 111 and a plug-in receiving portion 112 connected to the plug-in mounting portion 111. The plug-in mounting portion 111 is provided with a plug-in mounting hole 113 for installing a fastener 200. The plug-in receiving portion 112 is connected to a plug-in connecting portion 114. The positioning member 120 includes a positioning body 121, a positioning mounting portion 122 and a positioning inserting portion 123. The positioning body 121 is connected to the positioning mounting portion 122. The positioning mounting portion 122 is connected to the positioning inserting portion 123. The positioning mounting portion 122 is provided with a positioning portion mounting hole 1220 for installing the fastener 200. The positioning body 121 is movably connected to the plug-in connecting portion 114, so that the positioning member 120 can rotate relative to the plug-in plate 110.
[0105] When the folding board 100 is in the folded state, the plug-in receiving portion 112 and the positioning inserting portion 123 are coplanar, the plug-in receiving portion 112 is in contact with the positioning member 120 , and the positioning inserting portion 123 is located below the plug-in receiving portion 112 .
[0106] The cervical vertebral canal enlargement molding fixation assembly of the present invention can be applied to double-door spine lifting surgery. When the cervical vertebral canal enlargement molding fixation assembly is used, the incisions 2 are first cut on both sides of the vertebral plate 1, and then the plug-in receiving parts 112 of the plug-in plate parts 110 of the two folding plates 100 of the cervical vertebral canal enlargement molding fixation assemblies are respectively inserted into the two incisions 2, and then fasteners 200 are respectively implanted on both sides of the vertebral plate 1, and the fasteners 200 are installed on the plug-in mounting holes 113 of the plug-in mounting part 111, so that the relative position of the vertebral plate 1 and the plug-in mounting part 111 of the folding plate 100 is fixed; with the help of vertebral plate clamps, the vertebral plate 1 is pulled to the rear by a preset distance, the preset distance is about 4mm, and the folding plate 100 is folded, and the folding plate The positioning piece 120 of 100 is inserted into the incision 2. At this time, the positioning insertion part 123 is located below the plug receiving part 112. The plug receiving part 112 of the lifted plug board part 110 contacts the positioning piece 120. The positioning piece 120 provides a supporting force for the plug board part 110, so that the position of the folding board 100 in the folded state is stable; a fastener 200 is implanted on one of the side blocks 3, and the fastener 200 is installed on the positioning part mounting hole 1220 of the positioning mounting part 122, so that the relative position of one of the side blocks 3 of the human body and the positioning piece 120 of the folding board 100 is fixed; after completing the installation of the folding board 100 on one side, the folding board 100 on the other side can be installed in the same way;
[0107] Before the folding board 100 is folded, the plug receiving portion 112 of the plugging member 110 is inserted into the cutout 2; after the folding board 100 is folded, the positioning inserting portion 123 of the positioning member 120 is inserted into the cutout 2. The folding board 100 is not inserted into the cutout 2 as a whole. After the folding board 100 is installed, only the positioning inserting portion 123 is inserted into the cutout 2, so the size of the cutout 2 can be effectively reduced.
[0108] In the cervical vertebral canal expansion molding and fixation assembly, the positioning body 121 is movably connected with the plug-in connecting part 114, so that the positioning member 120 can rotate relative to the plug-in plate member 110, and the positioning member 120 can freely flip the angle relative to the plug-in plate member 110, and the folding plate 100 is easy to fold. The folding plate 100 has a simple structure and is easy to manufacture, and can be manufactured into a small and light structure, which can effectively reduce the size of the incision 2 and reduce the trauma of the patient; the folding plate 100 is easy to operate, can shorten the operation time, and increase the safety of the operation; the cervical vertebral canal expansion molding and fixation assembly is used in double-door spinal lifting surgery, so that the vertebral plate 1 will not deviate laterally, that is, the original physiological and mechanical structure of the human body is maintained. After the double-door spinal lifting surgery, the vertebral body is stably stressed, which is conducive to better recovery of the patient.
[0109] In this embodiment, the folding plate 100 is made of titanium alloy. The folding plate 100 is manufactured using 3D printing technology and is not subject to the process restrictions of traditional machining. The fasteners 200 are screws, and the number of fasteners 200 is 4; the plug-in mounting portion 111 is provided with two plug-in mounting holes 113 for mounting the fasteners 200, and the positioning mounting portion 122 is provided with two positioning portion mounting holes 1220 for mounting the fasteners 200.
[0110] The positioning body 121 includes a connecting plate 1211 and a supporting plate 1212;
[0111] The support plate 1212 is connected to the positioning and mounting portion 122 , and a support elastic portion 124 is provided on the support plate 1212 ;
[0112] The two ends of the connecting plate 1211 are respectively a first end and a second end. The first end of the connecting plate 1211 is connected to the plug-in connecting portion 114 of the plug-in plate 110, and the second end of the connecting plate 1211 is connected to the supporting plate 1212 through the supporting elastic portion 124.
[0113] When the folding plate 100 is in a folded state, the positioning and mounting portion 122 contacts the plug-in receiving portion 112, and the supporting plate 1212, the plug-in receiving portion 112 and the connecting plate 1211 form a triangular structure, and the two ends of the connecting plate 1211 respectively support the supporting plate 1212 and the plug-in receiving portion 112.
[0114] The first end of the connecting plate 1211 is connected to the plug-in connecting portion 114 of the plug-in plate 110 , and the second end of the connecting plate 1211 is connected to the elastic portion 124 of the support member, so that the connecting plate 1211 and the plug-in plate 110 are movably connected, and the connecting plate 1211 and the support plate 1212 are movably connected.
[0115] When the positioning and mounting portion 122 contacts the plug-in receiving portion 112, the positioning and mounting portion 122 supports the plug-in receiving portion 112; after the folding plate 100 is connected to the vertebral plate 1 and the side block 3 through the fastener 200, the triangular structure surrounded by the supporting plate 1212, the plug-in receiving portion 112 and the connecting plate 1211 is a stable triangular self-locking structure, so that the position of the folding plate 100 is stable.
[0116] The plug-in connecting portion 114 includes a plug-in transition portion 1141 and a plug-in spring piece 1142; the plug-in transition portion 1141 is connected to the plug-in receiving portion 112, and the plug-in transition portion 1141 is connected to the connecting plate 1211 through the plug-in spring piece 1142; the plug-in spring piece 1142 has a simple structure and is easy to process. The setting of the plug-in spring piece 1142 facilitates the connection plate 1211 to rotate relative to the plug-in plate 110;
[0117] The support elastic part 124 includes a support transition part 1241 and a support spring piece 1242; the support transition part 1241 is connected to the support plate 1212, and the support transition part 1241 is connected to the connecting plate 1211 through the support spring piece 1242. The support spring piece 1242 has a simple structure and is easy to process; the setting of the support spring piece 1242 facilitates the rotation of the support plate 1212 relative to the connecting plate 1211.
[0118] In order to make the structure more compact and enable the connecting plate 1211 to stably rotate relative to the plug-in plate 110, the end of the plug-in transition portion 1141 away from the plug-in receiving portion 112 is the plug-in free end, the plug-in spring sheet 1142 surrounds the plug-in free end of the plug-in transition portion 1141, and there is an elastic spacer 1143 between the plug-in free end of the plug-in transition portion 1141 and the plug-in spring sheet 1142;
[0119] In order to make the structure more compact and enable the support plate 1212 to rotate stably relative to the connecting plate 1211, the end of the support transition portion 1241 away from the support plate 1212 is the free end of the support, and the support spring piece 1242 surrounds the free end of the support transition portion 1241, and there is a support elastic gap 1243 between the free end of the support transition portion 1241 and the support spring piece 1242.
[0120] The plug-in receiving portion 112 is inclined relative to the plug-in transition portion 1141, and a plug-in portion recess 115 is formed at the connection between the plug-in receiving portion 112 and the plug-in transition portion 1141; a support portion recess 125 is provided at the connection between the support plate 1212 and the support transition portion 1241;
[0121] When the folding board 100 is in the folded state, the first end of the connecting plate 1211 abuts against the plug-in recess 115, and the second end of the connecting plate 1211 abuts against the support recess 125. This structure makes the triangular structure formed by the support plate 1212, the plug-in receiving portion 112 and the connecting plate 1211 more stable.
[0122] The plug-in installation portion 111 is inclined relative to the plug-in receiving portion 112 . This structure enables the plug-in installation portion 111 to better fit on the vertebral plate 1 when the plug-in receiving portion 112 is inserted into the incision 2 .
[0123] In this embodiment, the included angle between the plug-in receiving portion 112 and the plug-in transition portion 1141 is 90 degrees. The included angle between the positioning installation portion 122 and the positioning insertion portion 123 is 90 degrees.
[0124] When the folding plate 100 is in the initial state, the angle between the plug-in receiving portion 112 and the connecting plate 1211 is equal to 90 degrees. There are two plug-in mounting holes 113 on the plug-in mounting portion 111. After the two plug-in mounting holes 113 are inserted with the fastener 200, the plug-in mounting portion 111 is connected to the vertebral plate 1. The plug-in receiving portion 112 at the lower part of the plug-in mounting portion 111 is a vertical structure. The plug-in receiving portion 112 is an insert. The plug-in receiving portion 112 can be inserted into the incision 2. When the folding plate 100 is in the folded state, the plug-in plate 110 and the plug-in connecting portion 114 connected to the plug-in plate 110 are limited; the portion of the supporting plate 1212 connected to the connecting plate 1211 can play a role in limiting the connecting plate 1211. After the fastener 200 is installed in the two positioning portion mounting holes 1220 on the positioning mounting portion 122, the positioning mounting portion 122 is fixed to the side block 3 of the human body. When the folding plate 100 is in the folded state, the angle between the plug-in receiving portion 112 and the connecting plate 1211 is less than 90 degrees, the positioning insertion portion 123 can be inserted into the cutout 2, and the plug-in receiving portion 112 can be placed on the positioning installation portion 122, and the supporting plate 1212, the plug-in receiving portion 112 and the connecting plate 1211 form a stable triangular self-locking structure. In this embodiment, the connecting plate 1211 is a thin plate.
[0125] Example 2
[0126] like Figures 11 to 23 As shown, the difference between this embodiment and embodiment 1 is that the plug-in receiving portion 112 is connected to the plug-in connecting portion 114 through an intermediate plate 116;
[0127] The positioning body 121 is a positioning plate; a positioning portion limiting groove 1221 is provided on the positioning mounting portion 122, and the positioning portion limiting groove 1221 passes through to an end of the positioning mounting portion 122 away from the positioning insertion portion 123;
[0128] When the folding plate 100 is in a folded state, the plug-in receiving portion 112 is inserted into the positioning portion limiting groove 1221 , and the plug-in receiving portion 112 contacts the positioning portion limiting groove 1221 ; the middle plate 116 , the positioning body 121 and the plug-in receiving portion 112 form a triangular structure.
[0129] The plug-in receiving portion 112 is inserted into the positioning portion limiting groove 1221, and the plug-in receiving portion 112 contacts the positioning portion limiting groove 1221, so that the position of the plug-in receiving portion 112 is stable; the middle plate 116, the positioning body 121 and the plug-in receiving portion 112 form a triangular structure, so that the position of the middle plate 116, the positioning body 121 and the plug-in receiving portion 112 is stable.
[0130] The plug-in connection part 114 is an intermediate spring sheet, one end of which is connected to the intermediate plate 116, and the other end of which is connected to the positioning body 121. The intermediate spring sheet has a simple structure, and is convenient for the positioning body 121 to rotate relative to the intermediate plate 116.
[0131] When the folding plate 100 is in the folded state, the plug-in receiving portion 112 contacts the groove bottom surface 1222 of the positioning portion limiting groove, and the middle plate 116 contacts the positioning body 121. The groove bottom surface 1222 of the positioning portion limiting groove provides a stable supporting force for the plug-in receiving portion 112. The middle plate 116 contacts the positioning body 121, and the triangular structure formed by the middle plate 116, the positioning body 121 and the plug-in receiving portion 112 is a stable triangular self-locking structure, so that the position of the folding plate 100 is stable.
[0132] When the folding plate 100 is in the initial state, the angle between the plug-in receiving portion 112 and the positioning body 121 is equal to 90 degrees, the plug-in mounting portion 111 has two plug-in mounting holes 113 for inserting the fastener 200, the plug-in mounting portion 111 is connected to the vertebral plate 1 through the fastener 200, the plug-in receiving portion 112 at the lower part of the plug-in mounting portion 111 is a vertical structure, the plug-in receiving portion 112 is an insert, and the plug-in receiving portion 112 can be inserted into the incision 2. The two positioning portion mounting holes 1220 on the positioning mounting portion 122 are used to install the fastener 200, and the positioning mounting portion 122 is fixed to the side mass 3 of the human body. When the folding plate 100 is in the folded state, the angle between the plug-in receiving portion 112 and the positioning body 121 is less than 90 degrees, the positioning inserting portion 123 can be inserted into the cutout 2, the plug-in receiving portion 112 is inserted into the positioning portion limiting groove 1221, and the plug-in receiving portion 112 contacts the positioning portion limiting groove 1221; the middle plate 116, the positioning body 121 and the plug-in receiving portion 112 form a triangular structure, and the triangular structure formed by the middle plate 116, the positioning body 121 and the plug-in receiving portion 112 is a stable triangular self-locking structure, so that the position of the folding plate 100 is stable. The plug-in receiving portion 112 contacts the groove bottom surface 1222 of the positioning portion limiting groove, and the groove bottom surface 1222 of the positioning portion limiting groove supports the plug-in receiving portion 112, and the positioning portion limiting groove 1221 limits the plug-in receiving portion 112.
[0133] In this embodiment, a positioning protrusion 1223 is set in the positioning portion limit groove 1221, and a card slot 1120 is provided on the plug-in receiving portion 112. When the folding plate 100 is in a folded state, the positioning protrusion 1223 is inserted into the card slot 1120, so that the folding plate 100 maintains a stable folded state.
[0134] An intermediate plate slope is provided at one end of the intermediate plate 116 away from the positioning body 121, and a positioning portion slope is provided at one end of the positioning body 121 away from the intermediate plate 116. When the folding plate 100 is in a folded state, the intermediate plate slope contacts the positioning portion slope. This structure prevents interference between the intermediate plate 116 and the positioning body 121 during the folding process of the folding plate 100.
[0135] Example 3
[0136] like Figures 24 to 37 As shown, the difference between this embodiment and embodiment 2 is that a plug-in receiving hole 1144 is provided on the plug-in connecting portion 114;
[0137] The positioning plate is provided with a positioning portion installation groove 126 for inserting the plug-in connecting portion 114, and the two ends of a connecting shaft 127 are respectively connected to two oppositely arranged groove walls of the positioning portion installation groove 126, and the connecting shaft 127 passes through the plug-in receiving hole 1144.
[0138] When the folding plate 100 is in the folded state, the plug-in receiving portion 112 contacts the groove bottom surface 1222 of the positioning portion limiting groove.
[0139] When the folding plate 100 is in the initial state, the angle between the plug-in receiving portion 112 and the positioning body 121 is equal to 90 degrees, the plug-in mounting portion 111 has two plug-in mounting holes 113 for inserting the fastener 200, the plug-in mounting portion 111 is connected to the vertebral plate 1 through the fastener 200, the plug-in receiving portion 112 at the lower part of the plug-in mounting portion 111 is a vertical structure, the plug-in receiving portion 112 is an insert, and the plug-in receiving portion 112 can be inserted into the incision 2. The plug-in connecting portion 114 is provided with a plug-in receiving hole 1144, the plug-in receiving hole 1144 can be connected to the connecting shaft 127, and the two positioning portion mounting holes 1220 on the positioning mounting portion 122 are used to install the fastener 200, and the positioning mounting portion 122 is fixed to the side block 3 of the human body. When the folding plate 100 is in the folded state, the angle between the plug-in receiving portion 112 and the positioning body 121 is less than 90 degrees, the positioning inserting portion 123 can be inserted into the cutout 2, the plug-in receiving portion 112 is inserted into the positioning portion limiting groove 1221, and the plug-in receiving portion 112 contacts the positioning portion limiting groove 1221; the middle plate 116, the positioning body 121 and the plug-in receiving portion 112 form a triangular structure, and the triangular structure formed by the middle plate 116, the positioning body 121 and the plug-in receiving portion 112 is a stable triangular self-locking structure, so that the position of the folding plate 100 is stable. The plug-in receiving portion 112 contacts the groove bottom surface 1222 of the positioning portion limiting groove, and the groove bottom surface 1222 of the positioning portion limiting groove supports the plug-in receiving portion 112, and the positioning portion limiting groove 1221 limits the plug-in receiving portion 112.
[0140] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.
Claims
1. A cervical vertebral canal enlargement molding and fixation assembly, characterized in that: include: A folding plate (100) and a fastener (200); the folding plate (100) comprises a plug-in plate (110) and a positioning member (120); the plug-in plate (110) comprises a plug-in mounting portion (111) and a plug-in receiving portion (112) connected to the plug-in mounting portion (111); the plug-in mounting portion (111) is provided with a plug-in mounting hole (113) for mounting the fastener (200); the plug-in receiving portion (112) is connected to a plug-in connecting portion (114); the positioning member (120) comprises a positioning body (121), a positioning mounting portion (122) and a positioning insertion portion (123), the positioning body (121) is connected to the positioning mounting portion (122), the positioning mounting portion (122) is connected to the positioning insertion portion (123), and the positioning mounting portion (122) is provided with a positioning portion mounting hole (1220) for mounting the fastener (200); the positioning body (121) is movably connected to the plug-in connecting portion (114), so that the positioning member (120) can rotate relative to the plug-in plate member (110); When the folding plate (100) is in a folded state, the plug-in receiving portion (112) and the positioning inserting portion (123) are coplanar, the plug-in receiving portion (112) is in contact with the positioning member (120), and the positioning inserting portion (123) is located below the plug-in receiving portion (112); The positioning body (121) comprises a connecting plate (1211) and a supporting plate (1212); The support plate (1212) is connected to the positioning and mounting portion (122), and a support elastic portion (124) is provided on the support plate (1212); The two ends of the connecting plate (1211) are respectively a first end and a second end, the first end of the connecting plate (1211) is connected to the plug-in connection portion (114) of the plug-in plate (110), and the second end of the connecting plate (1211) is connected to the support plate (1212) via the support elastic portion (124); When the folding plate (100) is in a folded state, the positioning and mounting portion (122) contacts the plug-in receiving portion (112), the supporting plate (1212), the plug-in receiving portion (112) and the connecting plate (1211) form a triangular structure, and the two ends of the connecting plate (1211) respectively support the supporting plate (1212) and the plug-in receiving portion (112).
2. The cervical vertebral canal enlargement molding and fixation assembly according to claim 1, characterized in that: The plug-in connection portion (114) comprises a plug-in transition portion (1141) and a plug-in spring piece (1142); the plug-in transition portion (1141) is connected to the plug-in receiving portion (112), and the plug-in transition portion (1141) is connected to the connecting plate (1211) via the plug-in spring piece (1142); The support member elastic portion (124) comprises a support member transition portion (1241) and a support member spring sheet (1242); the support member transition portion (1241) is connected to the support plate member (1212), and the support member transition portion (1241) is connected to the connecting plate member (1211) via the support member spring sheet (1242).
3. The cervical vertebral canal enlargement molding and fixation assembly according to claim 2, characterized in that: The end of the plug-in transition part (1141) away from the plug-in receiving part (112) is a plug-in free end, the plug-in spring sheet (1142) surrounds the plug-in free end of the plug-in transition part (1141), and an elastic spacer (1143) of the plug-in part is provided between the plug-in free end of the plug-in transition part (1141) and the plug-in spring sheet (1142); The end of the support member transition portion (1241) away from the support plate (1212) is the free end of the support member, the support member spring sheet (1242) surrounds the free end of the support member of the support member transition portion (1241), and there is a support member elastic gap (1243) between the free end of the support member of the support member transition portion (1241) and the support member spring sheet (1242).
4. The cervical vertebral canal enlargement molding and fixation assembly according to claim 2, characterized in that: The plug-in receiving portion (112) is arranged obliquely relative to the plug-in transition portion (1141), and a plug-in portion recess (115) is formed at the connection between the plug-in receiving portion (112) and the plug-in transition portion (1141); a support portion recess (125) is provided at the connection between the support plate (1212) and the support transition portion (1241); When the folding plate (100) is in a folded state, the first end of the connecting plate member (1211) presses against the plug-in portion recess (115), and the second end of the connecting plate member (1211) presses against the support portion recess (125).