KR100974498B1 - Cervical plate - Google Patents

Abstract

PURPOSE: A cervical spine fixing device is provided to easily enable a person to check the region of cervical spine with the naked eye by forming an opening part in a plate. CONSTITUTION: A plate(110) has a plurality of holes(120) corresponding to the predetermined part of a cervical spine. A plurality of screws(130) are fixed to the predetermined part of the cervical spine through a plurality of holes of the plate. At least one cap insertion hole is formed between a plurality of holes of the plate. At least one elastic cap(150) is inserted into at least one cap insertion hole, respectively. The elastic cap has a separation preventing protrusion. The separation preventing protrusion prevents the separation of the screw from the hole of the plate.

Description

Cervical Fixation Device {Cervical Plate}

The present invention relates to an apparatus for securing a plurality of cervical vertebrae.

Diseases of the cervical spine, such as cervical disc disease, cervical hernial disc, cervical fracture and dislocation, and cervical spondylosis myelopathy, It is common to treat and correct by mutual fixing so that the use of the cervical spine fixing device is conventionally used to fix the cervical spine.

Such cervical plates generally refer to implants used in the cervical spine. It is usually inserted into the anterior approach of the cervical spine and serves to support two or more cervical spines when the upper and lower cervical spines are fused. Also, the cervical spine fixing device generally refers to a cervical anterior insert using a plate and a screw, wherein the screw is inserted into the cervical spine through a hole formed in the plate and the head of the screw presses the plate and is fixed in front of the cervical spine. . In addition, the plate is bent at an angle similar to the lordosis of the cervical spine, and is in close contact with the anterior cervical spine during surgery.

However, if the screw is separated from the plate can be fatal to the patient, it is very important to ensure that the screw is securely seated on the plate in the cervical spine fixing device.

In the related art, an anti-separation screw covering a part of the screw head is used to assist the plate to prevent the screw from being separated from the plate. However, the anti-separation screw is also not completely fixed, so there is a possibility of detachment from the plate. As such, the auxiliary coupling method of the separation preventing screw has a limit to prevent the separation of the screw.

In addition, the cervical spine fixation procedure is to cut the affected part of the patient to expose the cervical spine, and then fix it with an assistant or an assisting device while the plate is in contact with the affected part, and the operator inserts a screw into a hole formed in the plate, It is made in a way that is fixed to the cervical vertebrae located above and below, because it must be additionally coupled to the departure prevention screw, there was also a problem that the operation requiring promptness may be delayed or inaccurate.

Also, by way of example, the cervical vertebral fixer can be used by inserting a bone substitute into the disc space between the cervical vertebrae, then placing the plate over the surrounding cervical vertebrae and fixing it with a screw. However, in this case, after placing the plate on the cervical spine, the bone substitute material inserted into the disc space between the cervical spines is hidden by the plate, and thus, the bone substitute material cannot be examined during or after surgery.

Therefore, there is a problem that the accuracy of the operation can be reduced and even if the problem occurs after the operation can not directly observe the treatment site where the problem occurs unless you remove the cervical spine fixture from the cervical spine.

The present invention has been made to solve the problems described above, the problem to be solved by the present invention is to provide a cervical spine fixing device including a cap to facilitate both the insertion of the screw and the separation of the screw. .

In addition, another problem to be solved by the present invention is to provide a cervical spine fixing device that can be shortened the operation time and improve the accuracy of the operation is not necessary for the fastening of the cap during the operation.

And another problem to be solved by the present invention is to provide a cervical spine fixing device that can be visually confirmed even after the installation of the present invention the cervical spine or cervical spine through the opening.

A cervical spine fixing device according to an embodiment of the present invention for achieving the above object is a plate having a plurality of holes formed in contact with the cervical spine and corresponding to a predetermined portion of the cervical spine, and are respectively inserted into the plurality of holes A cervical spine fixing device comprising a plurality of screws fixed to a predetermined portion of the cervical spine, at least one cap insertion hole formed between the plurality of holes, and the one such that the plurality of screws are not separated from the plurality of holes. One or more elastic caps are respectively inserted into the cap insertion hole, wherein the elastic cap is provided with a separation prevention projections extending to the shoulder portion of the hole, and elastically behaves in the longitudinal direction of the separation prevention projections.

In addition, the elastic cap is one or more types of oil (U) or V (V) is bonded to each other side to side or a plurality of oil (U) inverted between each of the plurality of oil (U) is arranged to be coupled to each other left and right. It has a cross section, wherein the separation preventing projections extend in the transverse direction at both sides of the upper end of the cross section.

In addition, the screw is inserted into the hole while pushing the release preventing projection in the outward direction of the hole elastically compressing the elastic cap in the transverse direction of the cross-section, the elastic compression is the screw is inserted into the hole and the cervical spine It is released after it is fixed to the preset part of.

In addition, the elastic cap further comprises a locking projection extending in the transverse direction on both sides of the cross-section, the cap insertion hole is engaged with the locking projection to prevent the upward movement of the elastic cap when the elastic cap is inserted Includes a groove.

The elastic cap is inserted into the cap insertion hole while being elastically compressed in the transverse direction of the cross section, and the elastic compression is released while the locking protrusion is engaged with the locking groove.

The screw may further include a body part having a thread formed on an outer circumferential surface thereof to be fixed to the cervical vertebra, and a head part seated at the hole when the lower end is coupled to an upper end of the body part and the body part is inserted into the hole. The lower side is formed in a width that can pass through the body portion and the upper side is seated.

In addition, the head portion is expanded in width from the lower end in accordance with a predetermined inclination, the hole is formed in a shape for receiving the head portion.

In addition, the cervical spine fixing device according to an embodiment of the present invention further comprises one or more openings formed in the plate to observe the surgical site.

In addition, the predetermined portion of the cervical spine includes a pair of portions for each cervical spine, the hole is formed in the plate to correspond to the pair of portions included in the cervical spine, the cap insertion hole is included in the cervical spine It is formed between the pair of holes formed in the plate so as to correspond to the pair of portions.

According to the present invention, by allowing the separation prevention projection of the elastic cap to overlap the upper end of the hole of the plate into which the screw is inserted, when inserting the screw, the lower end of the head of the screw gradually pushes out the release prevention projection of the elastic cap, making it easy to insert. After insertion of the screw, the release preventing projection of the elastic cap can prevent the screw from being separated from the hole of the plate.

In addition, by allowing the cap to be elastically driven through the elastic cap 150, the screw 130 can be inserted immediately while the cap is fastened, so that the cap is fastened to the plate before surgery or at the time of manufacturing the device. This eliminates the need for additional cap fastening during surgery, resulting in shorter surgical times and improved surgical accuracy.

And since the opening is formed in the plate, the site between the cervical spine or cervical spine where surgery was performed through the opening can be visually confirmed even after the present invention is installed.

1 is a perspective view showing a state in which the elastic cap and the screw of the cervical spine fixing device according to an embodiment of the present invention is not installed.
Figure 2 is a perspective view showing a state where the screw of the cervical spine fixing device according to an embodiment of the present invention is not installed.
Figure 3 is a perspective view of the cervical spine fixing device according to an embodiment of the present invention.
Figure 4 is a schematic diagram showing a state in which the cervical spine fixing device according to an embodiment of the present invention to the cervical spine.
5 is a plan view showing a state in which the elastic cap and the screw of the cervical spine fixing device according to an embodiment of the present invention is not installed.
Figure 6 is a plan view of the cervical spine fixing device according to an embodiment of the present invention.
FIG. 7 is a cross-sectional view taken along the line VII-VII of FIG. 1.
FIG. 8 is a cross-sectional view taken along the line VIII-VIII of FIG. 2.
9 is a cross-sectional view taken along the line XX of FIG. 3.
10A through 10D are cross-sectional views illustrating a process in which the elastic cap is installed in the cap insertion hole.
11A through 11D are cross-sectional views illustrating a step of inserting a screw into a cervical spine through a hole.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

In the cervical spine fixing device according to the embodiment of the present invention, a cap having elastic behavior is installed on the plate to prevent the screw inserted into the cervical spine from the plate through a hole formed in the plate, and the plate can be directly observed. It relates to a cervical spine fixing device in which an opening is formed.

1 is a perspective view showing a state in which the elastic cap and the screw of the cervical spine fixing device according to an embodiment of the present invention is not installed, Figure 2 is a state in which the screw of the cervical spine fixing device according to an embodiment of the present invention is not installed Figure 3 is a perspective view, Figure 3 is a perspective view of the cervical spine fixing device according to an embodiment of the present invention. In addition, Figure 4 is a schematic diagram showing a state in which the cervical spine fixing device according to an embodiment of the present invention is fixed to the cervical spine.

And Figure 5 is a plan view showing a state in which the elastic cap and the screw of the cervical spine fixing device according to an embodiment of the present invention, Figure 6 is a plan view of the cervical spine fixing device according to an embodiment of the present invention. FIG. 7 is a cross-sectional view taken along the line VII-VII of FIG. 1, FIG. 8 is a cross-sectional view taken along the line VIII-VIII of FIG. 2, and FIG. 9 is a cross-sectional view taken along the line X-X of FIG. 3.

10A to 10D are cross-sectional views illustrating a step in which an elastic cap is installed in a cap insertion hole, and FIGS. 11A to 11D are cross-sectional views illustrating a step in which a screw is inserted into a cervical spine through a hole.

As shown in Figures 1 to 9, the cervical spine fixing device 100 according to an embodiment of the present invention is provided with a curvature so that the lower surface is facing the plurality of cervical vertebrae 200, plate 110 In the plurality of holes 120 formed in the plate 110 to correspond to the predetermined portion of the plurality of cervical vertebrae 200, and is inserted into each of the plurality of holes 120 to a predetermined portion of the plurality of cervical vertebrae 200 It includes a plurality of screws 130 is fixed. In addition, the cervical spine fixing device 100 includes one or more cap insertion holes 140 formed between the plurality of holes 120 of the upper surface 111 of the plate 110, and the plurality of screws 130 may include the plurality of holes 120. At least one elastic cap 150 is inserted into each of the at least one cap insertion hole 140 so as not to be separated from). The elastic cap 150 includes a departure preventing protrusion 151 extending to a shoulder 142 of the neighboring hole 120 by a predetermined length, and the lengthwise direction of the release preventing protrusion 151 (for example, FIG. 8 elastically in the lateral direction).

Referring to the plane of departure prevention projections 151 with reference to the plan view of Figure 6, the shoulder portion of the hole 120 so that the separation prevention projections 151 with respect to the hole 120, respectively (overlap) by a predetermined area (overlap) 142 may be extended to a predetermined length.

Herein, the term “predetermined length” refers to the plate 110 having the elastic cap 150 before the screw 130, as the elastic cap 150 elastically moves in the longitudinal direction of the release preventing protrusion 151 as shown in FIG. 11C. Even if installed in the) may mean a length that the screw 130 can be easily inserted into the hole (120). In addition, the length of the screw 130 inserted into the hole 120 is sufficient to limit the upward movement of the screw 130 in the shoulder portion 142 of the hole 120 so as not to be separated from the hole 120. Can be. That is, when the screw 130 is inserted, it is easily inserted, and after being inserted, it is preferable to set the length that can be prevented from being a predetermined length.

In addition, the 'preset portion' of the plurality of cervical vertebrae 200 may mean a portion determined to be stable to insert the screw 130 for each cervical vertebrae 200. For example, as schematically illustrated in FIG. 4, two parts may be 'preset parts' corresponding to the holes 120 and the screw 130 for each cervical spine 200.

In addition, the elastic cap 150 may elastically move in the longitudinal direction of the separation preventing protrusion 151. The elastic cap 150 may be elastically compressed in the direction of the cap insertion hole 140 from the shoulder portion of the hole 120, and may be elastically recovered from the cap insertion hole 140 in the direction of the shoulder portion of the hole 120. That is, the elastic behavior of the elastic cap 150 may mean elastic compression or elastic recovery.

Referring to FIG. 4, the arrangement of a plurality of cervical vertebrae 200, a plurality of holes 120, and one or more cap insertion holes 140 will be exemplarily described. 200) each set includes a pair of parts. The hole 120 is formed in the plate 110 to correspond to the pair of portions included in each of the cervical vertebrae 200. The cap insertion hole 140 may be formed between the pair of holes 121, 123, and 125 formed in the plate 110 to correspond to the pair of portions of the cervical vertebrae 200.

For example, as shown in FIGS. 1 to 6, the plurality of cervical vertebrae 200 are three cervical vertebrae 200, and the preset portion of the plurality of cervical vertebrae 200 is a pair of portions for each of the three cervical vertebrae 200. That can be two places. In addition, the plurality of holes 120 and the plurality of screws 130 correspond to a pair (two) for each of the three cervical vertebrae 200, and a total of three pairs (six) of holes 121, 123, and 125 It may be a pair (six) of screws 130. In addition, one or more cap insertion holes 140 may be formed one by one between each pair of holes 121, 123, and 125 corresponding to each of the three cervical vertebrae 200, and may include a total of three cap insertion holes 140.

1 to 9, the cervical spine fixing device 100 according to the exemplary embodiment of the present invention has three cervical vertebrae (as shown in FIGS. 1 to 9). 6 holes 120 formed in the plate 110 to correspond to a predetermined portion (two portions of each cervical spine) of the three cervical vertebrae 200 in the plate 110 and the plate 110 having a curvature to be opposed to the 200. (Two formed for each cervical spine), and six screws 130 inserted into six holes 120 and fixed to a predetermined portion (two portions for each cervical spine) of the three cervical spines 200, respectively. . The cervical spine fixing device 100 includes three cap insertion holes 140 formed between the six holes 120 of the upper surface 111 of the plate, and six screws 130 so as not to be separated from the six holes 120. Three elastic caps 150 are respectively inserted into the three cap insertion holes 140. The elastic cap 150 includes two departure preventing protrusions 151 each extending to a shoulder of the hole 120 by a predetermined length, and elastically move in the longitudinal direction of the release preventing protrusion 151.

8 and 9, the elastic cap 150 may include at least one oil (U) shape or a V (V) shape inverted between the cross sections or the plurality of oil (U) shapes that are coupled to each other from side to side. Iii) the shape is arranged to have a cross section that is coupled to each other from side to side. The anti-separation protrusion 151 extends in the left and right directions at both upper ends of the cross section.

For example, as shown in FIG. 8, the cross section of the elastic cap 150 may be formed in a shape in which an inverted oil shape is disposed between the U shape and the U shape to be coupled to each other from side to side. Can be. In other words, it refers to a cross-section made smooth by rounding each corner in the shape of W. At this time, the departure prevention protrusion 151 may be formed extending from the upper left side of the left side of the U shape in the cross section, and may be formed extending from the upper right side of the right side U form of the cross section in the right direction. have.

As another example, although not shown in the drawings, the cross section of the elastic cap 150 may be formed in a shape in which a plurality of V shapes are coupled to each other from side to side. For example, two V shapes may be formed from side to side. It may be formed to have a cross section of the shape of the W.

That is, the cross section of the elastic cap 150, as described above, is preferably composed of a cross section of a shape in which elastic behavior can be made in the longitudinal direction of the cross-section or in the longitudinal direction of the release preventing protrusion 151. Therefore, in addition to the cross-sectional shape mentioned in the above-described example, if the cross-sectional shape in which the elastic behavior can be made in the longitudinal direction of the cross-section or in the longitudinal direction of the departure preventing protrusion 151 may be recognized as an embodiment of the present invention 100.

11A to 11D, the screw 130 is inserted into the hole 120 while pushing the release preventing protrusion 151 in the outward direction of the hole 120 to elastically compress the elastic cap 150 in the lateral direction. . Elastic compression is released after the screw 130 is inserted into the hole 120 and fixed to a predetermined portion of the cervical vertebrae 200.

11A to 11D, the driving of the separation preventing protrusion 151 corresponding to the screw 130 will be exemplarily limited to the configuration shown in the cross-sectional view. First, the plate 110 is brought into contact with the cervical vertebrae 200, and then two screws 130 are inserted into the predetermined portions of the cervical vertebrae 200 through the two holes 123 (FIG. 11A). After the two screws 130 are inserted into the predetermined part of the cervical vertebra 200 by a predetermined length, the lower part of the head 133 of each screw 130 is formed on both sides of the elastic cap 150. It comes into contact with 151 (FIG. 11B). In this state, when each screw 130 is further inserted, the separation preventing protrusion 151 is pushed out of each hole 123 along its longitudinal direction. In the position of the elastic cap 150, the separation prevention protrusions 151 formed at both upper ends are pushed inward, and thus the elastic cap 150 is elastically compressed at the upper end in the horizontal direction (FIG. 11C). When the insertion procedure is further progressed and the head portion 133 of each screw 130 is seated in each hole 123, the head portion 133 of each screw 130 is no longer detached protrusion 151. It is located at a height that cannot be pushed. At this time, the elastic cap 150 is elastically recovered and the separation preventing protrusion 151 is returned to the shoulder portion of the hole 123 (FIG. 11D). In this way, the anti-separation protrusion 151 returned to the shoulder portion of the hole 123 extending by a predetermined length limits the upward movement of the screw 130 so that the screw 130 cannot be separated from the hole 123. It is to perform the function of departure prevention.

That is, the separation preventing protrusion 151 of the elastic cap 150 overlaps the upper end of the hole 120 of the plate 110 into which the screw 130 is inserted, so that the head of the screw 130 is inserted when the screw 130 is inserted. The lower end of the portion 133 is easily inserted while gradually pushing the separation prevention protrusion 151 of the elastic cap 150. In addition, after the insertion of the screw 130, the separation prevention protrusion 151 of the elastic cap may prevent the screw 130 from being separated from the hole 120 of the plate 110.

In addition, by allowing the elastic cap 150 to be elastically driven in this way, the insertion of the screw 130 is possible immediately in the state in which the elastic cap 150 is fastened, and thus the elastic cap 150 before surgery or at the time of manufacturing the device. ) Can be fastened to the plate 110 so that no additional work for the cap fastening is required during the operation, thereby reducing the operation time and improving the accuracy of the operation.

In addition, as shown in Figures 8 and 9, the elastic cap 150 may further include a locking projection 153, respectively extending in the transverse direction on both sides of the cross section. The cap insertion hole 140 may include a locking groove 141 engaged with the locking protrusion 153 to prevent upward movement of the elastic cap 150 when the elastic cap 150 is inserted.

Here, the locking projection 153 may be formed extending in the transverse direction at the lower end of both sides of the cross section of the elastic cap 150, as shown in FIG. When the locking protrusion 153 is formed at the lower end of the elastic cap 150 as described above, the locking groove 141 also corresponds to the lower end of the cap insertion hole 140 as shown in FIGS. 8 and 9. Can be formed. However, the locking protrusion 153 and the locking groove 141 are not necessarily formed on the lower side.

10A to 10D, the elastic cap 150 is inserted into the cap insertion hole 140 while being elastically compressed in the transverse direction of the cross section, and the elastic compression is fastened to the locking groove 141 by the locking protrusion 153. Is released.

10A to 10D, the process in which the elastic cap 150 is inserted into the cap insertion hole 140 will be exemplarily limited to the configuration shown in the cross-sectional view. First, when the elastic cap 150 is placed on the top of the cap insertion hole 140, the elastic cap 150 is not inserted into the cap insertion hole 140 due to the locking protrusion 153 (FIG. 10A). At this time, pressing the elastic cap 150 in the direction (down) of the cap insertion hole 140, the lower end of the elastic cap 150 is elastically compressed in the transverse direction of the cross section and at the same time inclined of the locking projection 153 The lower side formed gradually enters the inside of the cap insertion hole 140 along the upper edge of the cap insertion hole 140 (FIG. 10B). The upper end of the elastic cap 150 may be elastically tensioned in response to the elastic compression of the lower end of the elastic cap 150. After the bottom of the elastic cap 150 is compressed until the locking protrusion 153 completely enters the inside of the cap insertion hole 140, the extension protrusion 151 of the elastic cap 150 is the upper surface 111 of the plate 110. The elastic cap 150 is inserted into the cap inserting hole 140 until it touches () (FIG. 10C). After the extension protrusion 151 of the elastic cap 150 abuts on the upper surface 111 of the plate 110, the elastic cap 150 is pressed further by applying a predetermined force in the direction (downward) of the cap insertion hole 140. As the locking protrusion 153 is fastened to the locking groove 141, the elastic cap 150 is elastically restored again to return to its original shape (FIG. 10D).

Next, with reference to FIG. 9, when the screw 130 is searched for, the screw 130 has a thread 131b formed on the outer circumferential surface 131a to be fixed to the cervical vertebrae 200, and the body 131. When coupled to the top of the body portion 131 is inserted into the hole 120 includes a head portion 133 is seated in the hole 120. The lower side of the hole 120 is a body portion 131 of the screw 130 can pass through and the upper side of the hole 120 is formed in a width that can be seated on the head portion 133 of the screw 130.

In addition, the head portion 133 is expanded in width from the bottom in accordance with a predetermined inclination, each of the plurality of holes 120 is formed in a shape that accommodates the head portion 133.

Illustratively, as shown in the cross section shown in FIG. 11B, two screws 130 are inserted into a predetermined portion of the cervical vertebrae 200 by a predetermined length, and then the lower surface of the head portion 133 of each screw 130. Abutment prevention projections 151 formed on both sides of the elastic cap 150 abuts. At this time, the lower side of the head portion 133 is preferably formed to be inclined obliquely to the lower side of the head portion 133 in order to be able to gradually push the departure prevention projections 151 out of the hole 120. Accordingly, the term 'preset inclination' refers to the separation prevention protrusion 151 having the lower side of the head portion 133 overlapping the shoulder portion of the hole 120 when the screw 130 is inserted into the hole 120. It may be a slope set to push out with a resistance of.

On the other hand, as shown in Figures 1 to 6, the cervical spine fixing device 100 according to an embodiment of the present invention may further include one or more openings 160 formed in the plate 110 to observe the treatment site Can be. In the present embodiment, one opening 160 is formed between the cap insertion holes 140 by way of example. As the opening 160 is formed in the plate 110 as described above, even after the present invention 100 is installed, the operator can visually check the region between the cervical spine or the cervical spine, which is performed through the opening 160.

Although the embodiments of the present invention have been described above, the scope of the present invention is not limited thereto, and the present invention is easily changed and equivalent to those of ordinary skill in the art to which the present invention pertains. Includes all changes and modifications to the scope of the matter.

100. Cervical spine fixture 110. Plate
111.Top 120.Multiple Holes
121. A pair of holes 123. A pair of holes
125. A pair of holes 130. A plurality of screws
131. Body portion 131a. Outer circumference
131b. Thread 133. Head
140. One or more cap insertion holes 141. Jamming groove
142. Shoulder 150. One or more elastic caps
151. Stopping protrusion 153. Hanging protrusion
160. One or more openings 200. Multiple cervical vertebrae

Claims (9)

As a cervical spine fixing device comprising a plate having a plurality of holes in contact with the cervical spine and corresponding to a predetermined portion of the cervical spine, and a plurality of screws respectively inserted into the plurality of holes and fixed to the predetermined portion of the cervical spine. ,
One or more cap insertion holes formed between the plurality of holes, and
One or more elastic caps respectively inserted into the one or more cap insertion holes such that the plurality of screws are not separated from the plurality of holes
Including;
The elastic cap is provided with a separation prevention projections extending to the shoulder portion of the hole, the cervical spine fixing device that elastically moves in the longitudinal direction of the separation prevention projections. In claim 1,
The elastic cap has a cross section in which at least one U shape or a V shape is joined to each other from side to side or a plurality of U shapes inverted between each of the plurality of U shapes and are joined to each other from side to side. And
The separation prevention projections are cervical spine fixing device that extends in the transverse direction at both upper ends of the cross section. In claim 2,
The screw is inserted into the hole while pushing the release preventing projection in the outward direction of the hole to elastically compress the elastic cap in the transverse direction of the cross-section,
And the elastic compression is released after the screw is inserted into the hole and fixed to a predetermined portion of the cervical spine. In claim 2,
The elastic cap further comprises a locking projection extending in the transverse direction on both sides of the cross section,
The cap insertion hole includes a locking groove that is engaged with the locking projection so that the upward movement of the elastic cap when the elastic cap is inserted. In claim 4,
The elastic cap is inserted into the cap insertion hole while being elastically compressed in the transverse direction of the cross-section, the elastic compression is cervical spine fixing device is released while the locking projection is engaged with the locking groove. The method according to any one of claims 1 to 5,
The screw is
Body portion is formed on the outer peripheral surface to be fixed to the cervical spine, and
A lower end is coupled to an upper end of the body part and includes a head part seated in the hole when the body part is inserted into the hole,
The hole is a cervical spine fixing device is formed in the width of the lower side can pass through the body portion and the head portion is seated. In claim 6,
The head portion is widened from the bottom upwards in accordance with a predetermined slope,
The hole is cervical spine fixing device is formed in a shape for receiving the head portion. The method according to any one of claims 1 to 5,
The cervical spine fixing device further comprises one or more openings formed in the plate to observe the site of the procedure. The method according to any one of claims 1 to 5,
The predetermined part of the cervical spine comprises a pair of parts per cervical spine,
The hole is formed in the plate to correspond to the pair of parts included in the cervical spine,
And the cap insertion hole is formed between the pair of holes formed in the plate so as to correspond to the pair of portions included in the cervical spine.

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