Cervical vertebra fixing device based on cervical vertebra injury patient

Abstract

The cervical vertebra fixing device comprises a head plate, a tail plate and a plurality of middle connecting plates used for connecting the head plate and the tail plate, the head of the head plate, the tail of the tail plate and the middles of the middle connecting plates are respectively provided with positioning holes, the tail of the head plate and the tails of the middle connecting plates are respectively provided with inserting parts, and the inserting parts are connected with the positioning holes. The head portion of the middle connecting plate and the head portion of the tail plate are provided with inserting groove portions corresponding to the inserting portions, front side plates and rear side plates of the inserting groove portions are provided with connecting long holes respectively, threaded grooves are formed in the two sides of the inserting portions respectively, and the inserting portions and the inserting groove portions are fixedly connected through bolts. The cervical vertebra fixing device based on the cervical vertebra injury patient has the advantages of being scientific in design and high in stability and is suitable for being applied to the field of cervical vertebra fixing.

Description

Technical Field

[0001] The utility model relates to a medical auxiliary device, in particular to a cervical vertebra fixing device for patients with cervical vertebra injury. Background Art

[0002] During the surgical treatment of cervical diseases such as cervical fractures and cervical tumors, a cervical fixation plate is usually required to fix the vertebral body of the cervical spine. There are many cervical fixation devices on the market, such as the cervical fixation plate disclosed in Chinese patent CN217611332U, the cervical fixation plate disclosed in Chinese patent CN207266720U, etc. However, these cervical fixation plates are all made by extending the convex part of the connecting plate A into the groove of the connecting plate B, the convex part of the connecting plate A is provided with a bolt hole, and the groove of the connecting plate B is provided with a through hole, the through hole is a strip hole, and the through hole and the bolt hole are connected by bolts. During use, the cervical fixation plate can be fine-tuned by adjusting the bolt position, but the end face of the bolt is facing the patient's cervical spine, which is easy to cause discomfort to the patient or the bolt is loose.

[0003] In order to solve the above problems, people have been seeking an ideal technical solution. Utility Model Content

[0004] The utility model aims to provide a cervical vertebra fixing device for patients with cervical vertebra injury in view of the deficiencies in the prior art.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A cervical vertebra fixation device for patients with cervical vertebra injury comprises a head plate, a tail plate and a plurality of middle connecting plates for connecting the head plate and the tail plate, the head of the head plate, the tail of the tail plate and the middle of the middle connecting plate are respectively provided with positioning holes, the tail of the head plate and the tail of the middle connecting plate are respectively provided with plug-in parts, the head of the middle connecting plate and the head of the tail plate are respectively provided with slot parts corresponding to the plug-in parts, the front side plate and the rear side plate of the slot part are respectively provided with connecting long holes, the two sides of the plug-in part are respectively provided with threaded grooves, and the plug-in part and the slot part are fixedly connected by bolts.

[0007] The inner diameter of the outer end of the connecting long hole is larger than the outer diameter of the bolt head, and the inner diameter of the inner end of the connecting long hole is larger than the outer diameter of the bolt screw and smaller than the outer diameter of the bolt head.

[0008] A plurality of slots are evenly arranged on the upper and / or lower sides of the inner wall of the plug-in part, and a plurality of one-way limit plates are arranged on the upper and / or lower sides of the inner wall of the slot part corresponding to the slots, and the one-way limit plates are used to limit the plug-in part from coming out of the slot part.

[0009] The outer side of the slot part is an open end, and the plug-in part enters the slot part from the open end. The end face of the card slot close to the inner side of the slot part is a plane, and the end face of the card slot close to the outer side of the slot part is an inclined surface to form an inclined groove. The one-way limit plate is hinged to the inner wall of the slot part. In the vertical state, the lower side of the one-way limit plate is parallel to the end face of the card slot close to the inner side of the slot part, and the projections in the vertical direction overlap.

[0010] The one-way limiting plate is hinged to the inner wall of the slot part, and a limiting stopper is arranged on the inner wall of the slot part corresponding to the one-way limiting plate on one side close to the open end of the slot part.

[0011] There are multiple groups of card slots, which form a sawtooth-like structure. There are at least two groups of one-way limit plates, one of which is close to the opening end of the slot part.

[0012] Compared with the prior art, the utility model has the beneficial effect that the utility model provides a cervical vertebra fixation device based on patients with cervical vertebra injury, which has the advantages of scientific design and high stability, and is suitable for application in the field of cervical vertebra fixation. During use, the head plate and the tail plate can be directly connected as needed, or a number of middle connecting plates can be installed between the head plate and the tail plate; during the connection process, the head plate and the tail plate, the head plate and the middle connecting plate, and the tail plate and the middle connecting plate are fixed together by assembling the bolts into the threaded groove and tightening them; in addition, the bolts are located on both sides of the head plate, the middle connecting plate or the tail plate, and do not contact the cervical vertebra during use; in addition, the head of the bolt falls into the long connecting hole, which does not increase the volume of the cervical vertebra fixation device; at the same time, a card slot is set on the plug-in part, and a one-way limit plate is correspondingly set on the slot part to assist in fixed connection and facilitate assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model.

[0014] Figure 2 It is a partial enlarged structural schematic diagram of the utility model.

[0015] In the figure: 1. head plate; 2. tail plate; 3. middle connecting plate; 4. positioning hole; 5. connecting long hole; 6. bolt; 7. plug-in part; 8. slot part; 9. card slot. DETAILED DESCRIPTION

[0016] The technical solution of the utility model is further described in detail below through specific implementation methods.

[0017] In the description of the utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. "Installed", "provided with", "connected", etc. can adopt conventional means in the prior art, such as: integral setting, snap-on installation, welding connection, adhesive connection, bolt connection, etc. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to specific circumstances, and suitable connection, setting or installation methods can be selected in the prior art.

[0018] like Figure 1-2 As shown, a cervical vertebra fixation device for patients with cervical vertebra injury includes a head plate 1, a tail plate 2 and a plurality of middle connecting plates 3 for connecting the head plate 1 and the tail plate 2. Positioning holes 4 are respectively provided at the head of the head plate 1, the tail of the tail plate 2 and the middle of the middle connecting plate 3. Insertion parts 7 are respectively provided at the tail of the head plate 1 and the tail of the middle connecting plate 3. Slot parts 8 are provided at the head of the middle connecting plate 3 and the head of the tail plate 2 corresponding to the insertion parts 7. Long connecting holes 5 are respectively provided at the front side plate and the rear side plate of the slot part 8. Thread grooves are respectively provided at both sides of the insertion part 7. The insertion part 7 and the slot part 8 are fixedly connected by bolts 6. Specifically, in order to adapt to the shape of the cervical vertebra, the head plate, the tail plate and the middle connecting plate also need to have corresponding curvatures. This is the prior art in the art, and the present utility model has not made any improvements and will not be described in detail.

[0019] In one embodiment, the inner diameter of the outer end of the connecting long hole 5 is larger than the outer diameter of the bolt head, and the inner diameter of the inner end of the connecting long hole 5 is larger than the outer diameter of the bolt screw and smaller than the outer diameter of the bolt head. After assembly, it is convenient for the bolt head to fall into the connecting long hole.

[0020] In one embodiment, a plurality of slots 9 are evenly arranged on the upper side and / or the lower side of the inner wall of the plug-in portion 7, and a plurality of one-way limiting plates are arranged on the upper side and / or the lower side of the inner wall of the slot portion 8 corresponding to the slots 9, and the one-way limiting plates are used to limit the plug-in portion 7 from coming out of the slot portion 8. Specifically, a one-way limiting structure commonly used in the prior art can be adopted.

[0021] In one of the embodiments, the outer side of the slot portion 8 is an open end, the plug-in portion 7 enters the slot portion 8 from the open end, the end face of the slot 9 close to the inner side of the slot portion 8 is a plane, the end face of the slot 9 close to the outer side of the slot portion 8 is an inclined surface to form an inclined groove, and the one-way limit plate is hinged to the inner wall of the slot portion 8. In the vertical state, the lower side of the one-way limit plate and the end face of the slot 9 close to the inner side of the slot portion 8 are parallel to each other, and the projections in the vertical direction overlap.

[0022] In one embodiment, the one-way limit plate is hinged to the inner wall of the slot portion 8, and a limit stopper is provided on the inner wall of the slot portion corresponding to the one-way limit plate near the open end of the slot portion 8. By limiting the rotation angle of the one-way limit plate, when the plug-in portion is inserted into the slot portion, the one-way limit plate swings toward the inside of the slot portion, facilitating the insertion of the plug-in portion into the slot portion, and when the plug-in portion moves toward the outside of the open end of the slot portion, the limit stopper limits the rotation angle of the one-way limit plate, and the one-way limit plate cannot swing toward the outside of the slot portion, thereby abutting against the slot to prevent the plug-in portion from falling out.

[0023] In one embodiment, multiple groups of card slots 9 are provided, and the multiple groups of card slots 9 form a sawtooth-like structure. At least two groups of one-way limit plates are provided, and one group is close to the opening end of the slot portion 8, so that simple positioning can be performed when the plug-in portion is slightly inserted into the slot portion.

[0024] The above embodiments can be combined with each other.

[0025] The cervical vertebra fixation device for patients with cervical vertebra injury in the utility model has the advantages of scientific design and high stability, and is suitable for application in the field of cervical vertebra fixation. During use, the head plate and the tail plate can be directly connected as needed, or a number of middle connecting plates can be installed between the head plate and the tail plate; during the connection process, the head plate and the tail plate, the head plate and the middle connecting plate, and the tail plate and the middle connecting plate are fixedly connected together by assembling the bolts into the threaded grooves and tightening them; in addition, the bolts are located on both sides of the head plate, the middle connecting plate or the tail plate, and do not contact the cervical vertebra during use; in addition, the heads of the bolts fall into the long connecting holes, and the volume of the cervical vertebra fixation device is not increased; at the same time, a card slot is provided on the plug-in part, and a one-way limit plate is provided correspondingly on the slot part to assist in fixing the connection and facilitate assembly.

[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the utility model can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the utility model, which should be included in the scope of the technical solution for protection of the utility model.

Claims

1. A cervical vertebra fixation device for patients with cervical vertebra injury, comprising a head plate, a tail plate and a plurality of middle connecting plates for connecting the head plate and the tail plate, wherein the head of the head plate, the tail of the tail plate and the middle of the middle connecting plate are respectively provided with positioning holes, characterized in that: The tail of the head plate and the tail of the middle connecting plate are respectively provided with plug-in parts, the head of the middle connecting plate and the head of the tail plate are respectively provided with slot parts corresponding to the plug-in parts, the front side plate and the rear side plate of the slot parts are respectively provided with connecting long holes, and thread grooves are respectively provided on both sides of the plug-in parts, and the plug-in part and the slot part are fixedly connected by bolts.

2. The cervical vertebra fixation device for patients with cervical vertebra injury according to claim 1, characterized in that: The inner diameter of the outer end of the connecting long hole is larger than the outer diameter of the bolt head, and the inner diameter of the inner end of the connecting long hole is larger than the outer diameter of the bolt screw and smaller than the outer diameter of the bolt head.

3. The cervical vertebra fixation device for patients with cervical vertebra injury according to claim 2, characterized in that: A plurality of slots are evenly arranged on the upper and / or lower sides of the inner wall of the plug-in part, and a plurality of one-way limit plates are arranged on the upper and / or lower sides of the inner wall of the slot part corresponding to the slots, and the one-way limit plates are used to limit the plug-in part from coming out of the slot part.

4. The cervical vertebra fixation device for patients with cervical vertebra injury according to claim 3, characterized in that: The outer side of the slot part is an open end, and the plug-in part enters the slot part from the open end. The end face of the card slot close to the inner side of the slot part is a plane, and the end face of the card slot close to the outer side of the slot part is an inclined surface to form an inclined groove. The one-way limit plate is hinged to the inner wall of the slot part. In the vertical state, the lower side of the one-way limit plate is parallel to the end face of the card slot close to the inner side of the slot part, and the projections in the vertical direction overlap.

5. The cervical vertebra fixation device for patients with cervical vertebra injury according to claim 4, characterized in that: A limit stopper is arranged on one side of the inner wall of the slot portion corresponding to the one-way limit plate close to the open end of the slot portion.

6. The cervical vertebra fixation device for patients with cervical vertebra injury according to claim 5, characterized in that: There are multiple groups of card slots, which form a sawtooth-like structure. There are at least two groups of one-way limit plates, one of which is close to the opening end of the slot part.

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