CN217090871U

CN217090871U - Universal locking occipital bone plate capable of being shaped

Info

Publication number: CN217090871U
Application number: CN202121094658.5U
Authority: CN
Inventors: 薛静波; 玉培良; 顾浩铧; 彭文; 朱文洋; 卢琪
Original assignee: Guangdong Shitaibao Medical Technology Co ltd
Current assignee: Guangdong Shitaibao Medical Technology Co ltd
Priority date: 2021-05-20
Filing date: 2021-05-20
Publication date: 2022-08-02
Anticipated expiration: 2031-05-20

Abstract

The utility model discloses an universal locking occipital plate of plastic shape, including occipital plate, a clamping seat, screw and C type ring, occipital plate includes well axial plate and two curb plates, a plurality of through-hole has been seted up to well axial plate, well axial plate includes integrated into one piece's head and afterbody, the head is equipped with first plastic groove with the junction of afterbody, two curb plate integrated into one piece symmetries set up the afterbody both sides at well axial plate, the curb plate is equipped with the second plastic groove with the junction of well axial plate, the clamping seat sets up on the curb plate, U type groove has been seted up to the clamping seat, the screw runs through the through-hole, and its top is located the through-hole, the surface of C type ring is the evagination arc surface, the inner wall of through-hole is the annular groove, C type ring activity gomphosis is in the annular groove, the top at the screw is cup jointed to the C type ring. The utility model adopts the above structure, can carry out moulding to the occipital bone board for the occipital bone board laminates the occipital bone in the at utmost, and the screw can carry out certain angle's rotation simultaneously, reaches the purpose of multi-angle locking occipital bone.

Description

Universal locking occipital bone plate capable of being shaped

Technical Field

The utility model relates to the technical field of medical equipment, in particular to universal locking occipital plate of plastic shape.

Background

The occipital plate is mainly applied to the bone surgery of vertebral column centrum, and is usually used for fixing the fracture end by occipital-cervical fusion surgery, and is mainly used for treating cervical vertebra rehabilitation after traumatic cervical vertebra fracture surgery. The existing occipital neck fusion system mainly comprises an integrated occipital plate and a split occipital plate, the integrated occipital plate adopts a cervical plate and occipital plate integrated structure, the occipital plate and the cervical plate are connected into a whole through a middle bridging plate and a bridging screw, the occipital plate is used for fixing the occipital bone, and the cervical plate is used for fixing a cervical screw rod system. The split type occipital plate adopts the combination of the occipital plate and the connecting rods of the cervical vertebra fixing nail rod system, namely the occipital plate is fixed on the occipital bone by the bone screw, and the occipital plate is fixed with the structure of the two connecting rods of the cervical vertebra fixing nail rod system. The integral occipital bone plate has a larger structure and a more complex structure, and the operation process is relatively difficult. The split occipital plate structure is relatively small, and the operation is simpler and more convenient. However, regardless of whether the integrated occipital plate or the split occipital plate, the occipital plate fixes the occipital bone by adopting bone screws perpendicular to the occipital plate to be screwed into the occipital bone for locking, and the stability of the combination of the occipital plate and the occipital bone is poor.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a moldable universal locking occipital plate to solve one or more of the problems of the prior art, and to provide at least one of the advantages of the present invention.

The technical scheme adopted for solving the technical problems is as follows:

a moldable gimbaled locking occipital plate comprising:

the occipital plate comprises a middle shaft plate and two side plates, the middle shaft plate is provided with a plurality of through holes, the middle shaft plate comprises a head part and a tail part which are integrally formed, a first plastic groove is formed at the joint of the head part and the tail part, the two side plates are integrally formed and symmetrically arranged at two sides of the tail part of the middle shaft plate, and a second plastic groove is formed at the joint of the side plates and the middle shaft plate;

the clamping seat is arranged on the side plate and provided with a U-shaped groove;

the screw penetrates through the through hole, and the top of the screw is positioned in the through hole;

the outer surface of the C-shaped ring is an outer convex arc surface, the inner wall of the through hole is an annular groove, the C-shaped ring is movably embedded in the annular groove, and the C-shaped ring is sleeved on the top of the screw.

Preferably, the C-shaped ring is provided with an inner tapered thread, the top of the screw is provided with an outer tapered thread, and the C-shaped ring is engaged with the top of the screw. In the process of screwing the screw into the occiput, the outer conical thread of the screw is matched with the inner conical thread of the C-shaped ring to open the C-shaped ring, so that the outer convex arc surface of the C-shaped ring is tightly attached to the annular groove, and the locking effect of the screw and the occiput plate is achieved.

Preferably, the side plates include a first side plate and a second side plate which are integrally formed, the second side plate is provided with a movable elongated slot, the thickness of the first side plate is greater than that of the second side plate, and the bottom of the clamping seat is movably clamped on the movable elongated slot. The thickness of the second side plate is thinner, so that the occipital bone plate is thinner to a certain degree, and the first side plate has a limiting effect on the clamping seat.

Preferably, the clamping device further comprises a clamping ring, a stepped groove is formed in the inner wall of the movable long groove, a clamping groove is formed in the bottom of the clamping seat and connected with the stepped groove, and the clamping ring is clamped on the clamping groove to lock the clamping seat on the movable long groove. The movable elongated slot is used for fixing the connection of the clamping seat and the occipital plate and endows the clamping seat with a certain space of a movable range, so that the clamping seat can be adjusted according to the actual distance between the two spinal connecting rods when the clamping seat is connected with the spinal connecting rods, the bending step of the fixed spinal connecting rods in the operation is reduced, and the occipital plate and the spinal connecting rods in the operation are connected more simply and quickly. The clamping ring limits the clamping seat on the movable clamping groove, and the clamping seat is prevented from being separated.

Preferably, the snap ring is provided with a notch, and positioning grooves are symmetrically formed in the upper surface of the snap ring. The notch is arranged to ensure that the snap ring has certain propping capacity, so that the snap ring is conveniently propped up and clamped on the clamping groove of the clamping seat. The positioning groove is arranged so that the surface of the spinal connecting rod can be arranged in the positioning groove, and when the spinal connecting rod is locked, the position of the clamping ring can also be locked.

Preferably, the device further comprises a plug screw, wherein the groove wall of the U-shaped groove is provided with internal threads, and the plug screw is engaged in the U-shaped groove. The U-shaped groove is used for being matched with the screw plug to firmly lock the spinal connecting rod.

Preferably, the middle part and the bottom of the screw are both provided with external threads, and the bottom of the screw is provided with a cutting edge. The external thread is used for screwing in cortical bone and cancellous bone of the occipital bone; the cutting edge is designed to save labor when the screw is screwed into the cortical bone and the cancellous bone of the occiput.

Preferably, the joint of the first plastic groove and the second plastic groove is in a fillet structure.

Preferably, the number of the through holes is 3, and the through holes are uniformly distributed on the central shaft plate at intervals.

Preferably, the first plastic groove and the second plastic groove are both arc-shaped. The shaping groove is arc-shaped, so that the occipital plate is not easy to break off when being bent and shaped along the shaping groove.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses universal locking occipital plate of plastic is equipped with first plastic groove through the junction of the head of well axostyle and afterbody, and the junction of curb plate and well axostyle is equipped with second plastic groove, carries out the plastic deformation processing to occipital bone plate according to patient's the physiological radian during the operation, makes occipital plate laminating occipital bone in the at utmost, lets patient obtain better postoperative experience after the operation, consolidates the locking degree of occipital plate; simultaneously, the surface through C type ring is evagination arc surface, and the inner wall of through-hole is the annular groove, and C type ring activity gomphosis is in the annular groove, and C type ring cup joints at the top of screw, and the screw can carry out the rotation of certain angle to adapt to different angles and lock the occipital bone, reach the purpose of multi-angle locking occipital bone.

Drawings

The present invention will be further described with reference to the accompanying drawings and examples.

FIG. 1 is a schematic structural view of the moldable universal locking occipital plate of the present invention;

FIG. 2 is a schematic front view of an occipital plate of the present invention;

fig. 3 is a schematic view of the back structure of the occipital plate of the present invention;

fig. 4 is a schematic structural view of the card seat of the present invention;

fig. 5 is a schematic structural view of the screw of the present invention;

FIG. 6 is a schematic view of the C-shaped ring of the present invention;

FIG. 7 is a schematic structural view of the snap ring of the present invention;

fig. 8 is a schematic structural view of the screw plug of the present invention.

In the figure, 100-occipital bone plate, 110-middle shaft plate, 111-through hole, 112-head, 113-tail, 120-side plate, 121-first side plate, 122-second side plate, 1221-movable long groove, 1222-step groove, 130-first plastic groove, 140-second plastic groove, 150-fillet structure, 200-clamping seat, 210-U-shaped groove, 211-internal thread, 220-clamping groove, 300-screw, 310-external conical thread, 320-external thread, 330-cutting edge, 400-C-type ring, 410-internal conical thread, 500-clamping ring, 510-notch, 520-positioning groove and 600-plug screw.

Detailed Description

This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, if words such as "a plurality" are used, the meaning is one or more, the meaning of a plurality of words is two or more, and the meaning of more than, less than, more than, etc. is understood as not including the number, and the meaning of more than, less than, more than, etc. is understood as including the number.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

In an embodiment of the invention, as shown in fig. 1, a moldable universal locking occipital plate includes an occipital plate 100, a cartridge 200, a screw 300, and a C-ring 400. As shown in fig. 2 and 3, the occipital plate 100 includes a central shaft plate 110 and two side plates 120, the central shaft plate 110 has a plurality of through holes 111, the central shaft plate 110 includes a head portion 112 and a tail portion 113 which are integrally formed, a first plastic-shaped groove 130 is formed at a connection portion of the head portion 112 and the tail portion 113, the two side plates 120 are integrally formed and symmetrically disposed at two sides of the tail portion 113 of the central shaft plate 110, and a second plastic-shaped groove 140 is formed at a connection portion of the side plates 120 and the central shaft plate 110. The clamping seat 200 is disposed on the side plate 120, the clamping seat 200 is provided with a U-shaped groove 210, the screw 300 penetrates through the through hole 111, and the top of the screw is located in the through hole 111. As shown in fig. 6, the outer surface of the C-ring 400 is a convex arc surface. The inner wall of the through hole 111 is an annular groove, the C-shaped ring 400 is movably embedded in the annular groove, and the C-shaped ring 400 is sleeved on the top of the screw 300.

In some embodiments, the C-ring 400 is provided with internal tapered threads 410. As shown in fig. 5, the top of the screw 300 is provided with an external tapered thread 310. The C-ring 400 is engaged with the top of the screw 300.

In some embodiments, as shown in fig. 2, the side plate 120 includes a first side plate 121 and a second side plate 122 that are integrally formed, the second side plate 122 is provided with a movable slot 1221, and the thickness of the first side plate 121 is greater than that of the second side plate 122. The bottom of the card holder 200 is movably clamped on the movable long groove 1221.

In some embodiments, a snap ring 500 is also included. As shown in fig. 3, the inner wall of the movable elongated slot 1221 is provided with a stepped slot 1222. As shown in fig. 4, the bottom of the card socket 200 is provided with a card slot 220. The clamping groove 220 is connected with the stepped groove 1222, and the clamping ring 500 is clamped on the clamping groove 220 to lock the clamping seat 200 on the movable long groove 1221.

In some embodiments, as shown in fig. 7, the snap ring 500 has a notch 510, and the upper surface of the snap ring 500 is symmetrically provided with a positioning groove 520.

In some embodiments, as shown in fig. 8, the plug screw 600 further includes a hexagonal hole at the top thereof, the outer peripheral wall has a threaded structure, the groove wall of the U-shaped groove 210 is provided with an internal thread 211, and the plug screw 600 is engaged in the U-shaped groove 210. It can be understood that the hexagonal hole at the top of the plug 600 may also be designed as a quincuncial hole, etc. to facilitate the screwing of the screwdriver.

In some embodiments, as shown in FIG. 5, the screw 300 has external threads 320 on both the middle and bottom, and the screw 300 has a cutting edge 330 on the bottom.

In some embodiments, the intersection of the first and second

plastic grooves

130, 140 is a rounded corner structure 150.

In some embodiments, the number of the through holes 111 is 3, and the through holes are uniformly spaced on the middle shaft plate 110.

In some embodiments, the first and second

plastic grooves

130 and 140 are each circular arc shaped.

When in use, the occipital bone plate 100, the clamping seat 200, the screw 300, the C-shaped ring 400, the clamping ring 500 and the screw plug 600 with proper specifications are selected according to the actual condition of a patient; then the vertebral pedicle screw-rod system is placed and installed according to the operation flow of the conventional vertebral thoracolumbar posterior screw-rod system; then, bending and shaping the occipital plate 100, fitting the occipital bone for multiple times for comparison to adjust that the occipital plate 100 almost completely fits the occipital bone, then placing the C-shaped ring 400 in the annular groove of the through hole 111 of the occipital plate 100, then penetrating the bottom of the clamping seat 200 through the movable long groove 1221, locking the clamping seat 200 on the movable long groove 1221 by using the clamping ring 500, then placing the spinal column connecting rod in the U-shaped groove 210 of the clamping seat 200, pre-locking the connecting rod by using the screw plug 600, enabling the pre-locked clamping seat 200 to move in the movable long groove 1221 of the clamping seat 200, screwing the screw 300 into the C-shaped ring 400 on the bone plate pillow 100, screwing the screw 300 into the occipital bone to fix the bone plate pillow 100 after adjusting the angle, locking the screw plug 600 on the spinal column connecting rod by using the hexagonal screwdriver, and finally completing the operation according to the normal operation flow.

The present invention is not limited to the above-described embodiments, and those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and these equivalent modifications or substitutions are included in the scope defined by the claims of the present application.

Claims

1. A moldable gimbaled locking occipital plate, comprising:

the occipital plate comprises a central shaft plate and two side plates, wherein the central shaft plate is provided with a plurality of through holes and comprises a head part and a tail part which are integrally formed, a first plastic groove is formed at the joint of the head part and the tail part, the two side plates are integrally formed and symmetrically arranged at two sides of the tail part of the central shaft plate, and a second plastic groove is formed at the joint of the side plates and the central shaft plate;

2. The moldable universal locking occipital plate of claim 1, wherein said C-ring is provided with an internal tapered thread and the top of said screw is provided with an external tapered thread, said C-ring being in meshing engagement with the top of said screw.

3. The moldable universal locking occipital plate of claim 1, wherein said side plates comprise a first side plate and a second side plate integrally formed, said second side plate defining a movable elongated slot, said first side plate having a thickness greater than a thickness of said second side plate, said clamp base having a bottom removably clamped to said movable elongated slot.

4. The moldable universal locking occipital plate of claim 3 further comprising a snap ring, wherein a stepped groove is formed on the inner wall of the movable elongated groove, a snap groove is formed at the bottom of the snap seat and connected with the stepped groove, and the snap ring is snapped on the snap groove to lock the snap seat on the movable elongated groove.

5. The moldable universal locking occipital plate of claim 4, wherein said snap ring has notches and said snap ring has symmetrically positioned grooves on its upper surface.

6. The moldable universal locking occipital plate of claim 1 further comprising a threaded plug, the walls of said U-shaped channel being internally threaded, said plug engaging in said U-shaped channel.

7. The moldable universal locking occipital plate of claim 1, wherein said screw is externally threaded at both the middle and bottom portions thereof, said screw having a cutting edge at the bottom portion thereof.

8. The moldable universal locking occipital plate of claim 1, wherein the intersection of said first and second shaped grooves is a rounded corner structure.

9. The moldable universal locking occipital plate of claim 1, wherein said through holes are 3 in number and evenly spaced on said central shaft plate.

10. The moldable universal locking occipital plate of claim 1, wherein said first and second plastic grooves are each arc shaped.