KR100788086B1 - Fixing Device for Spinous Process - Google Patents

Abstract

The present invention includes an extension arm extending to an adjoining spinous process and a first fixing part mounted at one end of the extension arm and a second fixing part inserted into the extension arm so as to face the first fixing part. The first fixing part supports one side of the spinous process, and the second fixing part supports the other side of the spinous process, and relates to the spinous process fixing device, characterized in that fixing adjacent spinous processes. The spinous process fixing device of the present invention can fix a plurality of adjacent spinous processes to prevent degenerative degeneration of the spine after spinal surgery, and has excellent compatibility and can be applied to most spinal fixing devices.

Spinous process, spinal fixation device, first fixing part, second fixing part, extension arm, side bar, extension arm

Description

Fixing Device for Spinous Process

1 is a plan view showing a state of use of the general spinal fixing device.

Figure 2 is a side cross-sectional view showing a state in which the spinal screw of the spinal fixing device shown in Figure 1 is inserted into the vertebra.

Figure 3 is a perspective view showing the state in which the spinous process fixing device according to one embodiment of the present invention mounted on the spinal fixing device.

Figure 4a is a perspective view showing an embodiment of the extension arm of the spinous process fixing device according to an embodiment of the present invention.

Figure 4b is a perspective view showing the extension arm of the spinous process fixing device according to another embodiment of the present invention.

Figure 4c is a perspective view showing the extension arm of the spinous process fixing device according to another embodiment of the present invention.

Figure 5a is a perspective view showing a second fixing part of the spinous process fixing device according to another embodiment of the present invention.

Figure 5b is a side cross-sectional view showing a coupling relationship between the second fixing part of the spinous process fixing device shown in Figure 5a and the extension arm shown in Figure 4a.

Figure 6a is a perspective view showing a second fixing part of the spinous process fixing device according to another embodiment of the present invention.

Figure 6b is a side cross-sectional view showing a coupling relationship between the second fixing part of the spinous process fixing device shown in Figure 6a and the extension arm shown in Figure 4b.

Figure 7a is a perspective view showing a second fixing part of the spinous process fixing device according to another embodiment of the present invention.

Figure 7b is a side cross-sectional view showing a coupling relationship between the second fixing part of the spinous process fixing device shown in Figure 7a and the extension arm shown in Figure 4c.

Figure 8 is a perspective view showing one embodiment of a connecting member used in the spinous process fixing device of the present invention.

Figure 9a is a perspective view showing another embodiment of the connecting member used in the spinous process fixing device of the present invention.

9B is a perspective view illustrating a state in which the connecting member of FIG. 9A is fixed to a horizontal bar;

Figure 10a is a plan view showing a state in which the spinous process fixing device of the present invention to fix the front and rear of the spinous process.

Figure 10b is a rear view showing a state in which the spinous process fixing device of the present invention is fixed to the lower end of the plaque plate.

Figure 11a is a schematic perspective view of the spinous process fixing device of another embodiment of the present invention,

11B is a perspective view for explaining a method of fastening the first fixing part and the second extension arm of the spinous process apparatus of the present invention;

12 is a schematic perspective view of the spinous process fixing device of another embodiment of the present invention;

Figure 13 is an exploded perspective view of the spinous process fixing device of Figure 11a,

14 is a perspective view illustrating a state in which the spinous process device of FIG. 11A is fastened to the spinal column fixing device;

Figure 15 is a plan view showing a state in which the spinous process device of Figure 11a is fastened to the spinal column fixing device,

16 is a plan view showing a state where the spinous process anchoring device of Figure 11a is implanted in the spine,

17 is a schematic perspective view of the spinous process fixing device of another embodiment of the present invention;

18 is a schematic perspective view of the spinous process fixing device of another embodiment of the present invention;

19A is a perspective view of an example in which the cross-sectional shape of the insertion hole of the left and right rod fixing link and the lower connection member is square;

19B is a perspective view of an example in which the cross-sectional shape of the insertion hole of the left and right rod fixing link and the lower connection member is pentagonal;

20 is a detailed side cross-sectional view of a horizontal bar in which left and right rod fixing links are integrally formed;

< Description of Symbols for Main Parts of Drawings >

1: Spine 10-16: Spine bone

131: spinous process projection 132: transverse projections 133: hole

134: the cone 135: guide protrusion

20: spine screw 21: rod 22: horizontal bar

23: connecting member 201: nut

30: connecting member 32: extension cancer fixing

321: Bolt 322: Insertion hole 331: Horizontally fixed part

311: Nut 312: Insertion hole 40: Extension arm

41: catch part 42: 2nd government: 50: 1st government

51: insertion tube 511: stop 52: main hook 53: auxiliary hook

The present invention relates to a spinous process fixing device, and in particular, an extension arm is installed in a spinal fixation device in which a vertebrae and a vertebrae that have undergone a disk removal surgery are fixed with a spinal screw and a rod, and the spinal screw using the first and second fixing parts. It is to provide a device that can prevent the degenerative degeneration of the adjacent vertebra after spinal surgery by holding the spinous process of the adjacent vertebra of the vertebra.

The spine is composed of a plurality of vertebrae connected up and down. The vertebra has a plurality of unit vertebral bodies with a disk interposed therebetween and connected up and down, a spinous process extending to the dorsal side of the human body and integrally connected to each unit vertebral body and a transverse protrusion protruding to the left and right sides, respectively ( transverse process) and guide protrusions located between the spinous process and the transverse process. Between each vertebral body and the spinous process is formed a spinal ball through which the spinal nerve passes up and down, the spinal ball extends along the longitudinal direction of the connected vertebral body up and down.

The spinal fixing device is a device for treating a patient who has an abnormality in the spine due to fracture of the spine or the occurrence of a disease by surgery. That is, in the case of a patient suffering from a vertebral fracture, the vertebral fixation device is inserted into each vertebra of the vertebral bone to interconnect the vertebral bone.

As shown in Figures 1 and 2, when an abnormality occurs in the spine, the spine screw 20 is buried between the guide protrusion 135 and the traverse protrusion 132 for each spine having an abnormality, By positioning the rod 21 on the head and then fixing the nut, the treated vertebrae are firmly held to each other. Then, the connecting member 23 is laid on the rods 21 mounted on both sides, and the horizontal bars 22 are fitted to each other so as to bind the rods on both sides to support the vertebrae more firmly.

However, such a conventional vertebral fixation device only serves to hold the vertebrae firmly to each other so that the vertebral bones can not be freely moved up, down, left and right. Therefore, the vertebrae adjacent to the fixed vertebrae are forced to exercise excessively, which causes excessive load on the adjacent vertebrae, which may cause degenerative degeneration in the adjacent vertebral segments. For example, referring to FIG. 1, when vertebral fixation is performed on vertebrae 12, 13, and 14, 12, 13, and 14 vertebrae are firmly fixed so that excessive load is applied to 10 or 11 and 15 or 16 vertebrae. This results in degenerative degeneration of these vertebrae.

Approximately 4 to 5 years after spinal fixation, about 30 to 50% of spinal fixation patients experience degenerative degeneration. When the degenerative degeneration occurs as described above, reoperation is inevitable. However, the re-surgery requires removal of the previously inserted spinal screw and rods, and fixation of the spinal screw again, which causes the risk of severe pain and infection. May occur.

The present invention is to overcome the problems of the prior art described above, one object of the present invention is to distribute the load applied to the adjacent vertebrae by holding the spinous process of the adjacent vertebrae and even after fixation of the adjacent vertebrae within a limited range The present invention provides a spinous process fixing device capable of flowing to prevent degenerative degeneration that may occur in adjacent vertebrae.

Another object of the present invention is to provide a spinous process fixing device which is compatible with any conventional spinal fixation device.

Still another object of the present invention is to provide a spinous process fixing device capable of simultaneously fixing a plurality of spinous processes.

According to the first embodiment of the present invention, the spinous process fixing device of the present invention includes an extension arm extending to an adjacent spinous process in the spinal fixation device including a spinal screw embedded in the vertebra and a rod fixing the spinal screw to each other. And a first fixing part mounted at one end of the extension arm and a second fixing part inserted into the extension arm so as to face the first fixing part, wherein the first fixing part supports one side of the spinous process and fixes the second fixing part. The part supports the other side of the spinous process to fix the spinous process.

According to the second embodiment of the present invention, the spinous process fixing device of the present invention, in the first embodiment, the first fixing portion is formed detachably from the extension arm and the insertion tube and the insertion tube fitted to the extension arm. It is characterized in that the hook of the hook shape attached to one end of the.

According to the third embodiment of the present invention, in the spinous process fixing device of the present invention, in the first embodiment, the extension arm further has a moving means formed at a predetermined position above the first fixing part. The second fixed part is characterized in that guided by the means of movement of the extension arm.

According to the fourth embodiment of the present invention, the spinous process fixing device of the present invention is characterized in that, in the third embodiment, the moving means is a screw thread formed on the outer circumferential surface of the extension arm.

According to the fifth embodiment of the present invention, the spinous process fixing device of the present invention is characterized in that, in the fourth embodiment, the moving means is a latch protrusion formed on the outer circumferential surface of the extension arm.

According to the sixth embodiment of the present invention, the spinous process fixing device of the present invention, in the first embodiment or the fourth embodiment, the second fixing part of the insertion tube and the insertion tube guided to the extension arm is guided A hook-shaped main hook attached to one side and a hook-shaped auxiliary hook extending downward with a predetermined inclination angle at a predetermined position of the main hook is characterized in that it is made.

According to the seventh embodiment of the present invention, the spinous process fixing device of the present invention, in the fifth embodiment, the second fixing part has a hook shape attached to one side of the insertion tube and the insertion tube which is inserted and guided to the extension arm. The main hook of the main hook and a hook-shaped auxiliary hook extending downwards with a predetermined inclination angle at a predetermined position, the insertion cylinder is characterized in that the upper end has a projection linked to the latch protrusion of the extension arm It is done.

According to the eighth embodiment of the present invention, the spinous process fixing device of the present invention, in the sixth embodiment, the insertion tube of the second fixing part is inserted into the extension arm and then extended by bolts mounted on the side thereof. It is characterized in that the position is fixed to the arm.

According to the ninth embodiment of the present invention, the spinous process fixing device of the present invention, in the sixth embodiment, the insertion tube of the second fixing part is located above and below the insertion tube after being inserted into the extension arm. It is characterized in that the position is fixed to the extension arm by the screw threaded and the nut of the arm.

According to the tenth embodiment of the present invention, the spinous process fixing device of the present invention, in the first embodiment, is characterized in that the extension arm is coupled through the side bar and the connecting member of the spinal column fixing device.

According to an eleventh embodiment of the present invention, the spinous process fixing device of the present invention is characterized in that in the first embodiment, the extension arm is coupled through a connecting member mounted on the rod of the spinal fixing device.

According to the twelfth embodiment of the present invention, the spinous process fixing device of the present invention, in the tenth embodiment, wherein the connecting member is crossed with the horizontal bar fixing part of the predetermined length to which the horizontal bar is fitted and the horizontal bar fixing part is The extension arm is characterized in that consisting of the extension arm fixed to be inserted.

According to a thirteenth embodiment of the present invention, the spinous process fixing device of the present invention, in the twelfth embodiment, the horizontal bar fixing part is a hollow cylindrical member in which the horizontal bar is inserted and the extension arm fixing part is the extension arm. The hollow cylindrical member is inserted and fixed, and the horizontal bar and the extension arm are fixed by bolts passing through the hollow cylindrical member, respectively.

According to a fourteenth embodiment of the present invention, the spinous process fixing device of the present invention, in the twelfth embodiment, the horizontal bar fixing part is a member that slides by being fitted to both sides of the plate-shaped horizontal bar having a guide groove on the side. The extension arm fixing part is a hollow cylindrical member which is mounted at a predetermined position of the horizontal bar fixing part, and the extension arm is inserted and fixed. The horizontal bar fixing part has a bolt on a plurality of insertion holes spaced apart at regular intervals from the plate-shaped horizontal bar. It is fastened by position is fixed by the extension arm is characterized in that coupled to the extension arm by a bolt.

According to a fifteenth embodiment of the present invention, the spinous process fixing device of the present invention comprises: a first fixing part including a head portion extending over the top of the spinous process and a first extension arm extending from the head portion; A second extension arm extending from the head portion in parallel with the first extension arm; And a second fixing part penetrating the first extension arm and the second extension arm and supporting the lower portion of the spinous process to fix the spinous process. The spinous process fixing device of this embodiment may include a plurality of second fixing parts to simultaneously fix a plurality of spinous processes.

The spinous process anchoring device of the sixteenth embodiment of the present invention has a horizontal bar which engages a pair of opposed rods of the spinal anchoring device when implanted in the body of a patient: and the first fixing part and the second fixing part on the horizontal bar. It may further include a connection member for fixing.

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

Figure 3 is a perspective view showing a state in which the spinous process fixing device according to an embodiment of the present invention mounted on the spinal fixing device. As shown in Figure 3, the spinous process fixing device of the present invention is an extension arm 40, which is connected to the spinal fixation device consisting of a spinal screw 20, the rod 21, integral or removable on one end of the extension arm. And a second fixing part 50 which is inserted into the extension arm 40 and guides to face the first fixing part 42.

The spinal fixation device is a well known technology prior to the present application, so detailed description thereof will be omitted.

As shown in FIG. 3, the extension arm 40 may be connected to the lateral bar 22 of the spinal column fixing device through the connecting member 30 or may be extended by being coupled to the rod 21 although not shown. The extension arm 40 is a rod-shaped member extending to a predetermined length and has a first fixing part 42 at one end thereof. The first fixing part is hook-shaped hook and is integrally or detachably coupled with the extension arm.

Figure 4a is a perspective view showing an embodiment of the extension arm of the spinous process fixing device according to an embodiment of the present invention. Referring to FIG. 4A, the extension arm 40 is a rod-shaped member having a predetermined length, the first fixing portion 42 being a hook-shaped hook integrally mounted at one end thereof, and along the circumferential direction at a predetermined position. It has a plurality of latch protrusions 41 protruded at regular intervals. The first fixing part 42 is formed to have a curvature or a size enough to support one side of the spinous process as described later. The latch protrusion 41 functions as a moving means for allowing the second fixing part 50 of FIGS. 5A to 5B to move on the extension arm, and the second fixing part is movable only in the direction of the first fixing part 42. It has a configuration that makes it impossible to move in the opposite direction. As an example, the inclined surface 411 may be inclined upward.

Referring to Figure 4b is a perspective view showing the extension arm of the spinous process fixing device according to another embodiment of the present invention, the extension arm (40 ') is a rod-shaped member having a predetermined length is a hook of the hook-shaped end The first fixing part 42 'is detachably mounted. The first fixing part 42 ′ has a hollow cylindrical insertion cylinder 421 ′ through which the extension arm penetrates and a hook-shaped hook extending to one side of the insertion cylinder 421 ′ and bent upwards ( 422 ') and a bolt 423' for pressing and fixing the insertion cylinder 421 'to the extension arm after being inserted through the insertion cylinder. The extension arm 40 'shown in FIG. 4B is preferably used with the second fixing portion 50' shown in FIG. 6A.

4C, which is a perspective view showing an extension arm of the spinous process fixing device according to another embodiment of the present invention, the extension arm 40 "is similar to the extension arm 40 of FIG. 4A, but is a thread 41" as a moving means. The difference is that it is adopted. Such extension arm 40 "is preferably used with the second fixing part 50" shown in FIG. 7A.

Although not shown, according to other embodiments of the present invention, the first arm may be detachably provided in the structure of the extension arm of FIG. 4A or 4C as shown in FIG. 4B.

Second fixation (50, 50 ', 50 ") is inserted along the extension arms (40, 40', 40") to the spinous process of the adjacent vertebra along with the first fixation (42, 42 ', 42 ") It has a fixed supporting role, and the shape is hooked like the hook of the first fixing part, and is bent in the opposite direction to the hook of the first fixing part so as to face the hook of the first fixing part.

Figure 5a is a perspective view showing a second fixing part of the spinous process fixing device according to another embodiment of the present invention. As shown in FIG. 5A, the second fixing part 50 includes a hollow cylindrical member 51 and a main hook 52 and a main hook 52 extending upward from one end of the cylindrical member. The auxiliary hook 53 extends at a predetermined position of the main hook and is bent upward at a predetermined inclination angle. The tube member 51 has a protrusion 511 protruding in the center direction at the upper end of the inner circumferential surface of the center hole 512, the protrusion 511 is the second fixing portion 50, as shown in Figure 5b ) Allows the movable arm 40 to move in the direction of arrow A while the latch protrusion 41 of the extension arm 40 is movable. That is, the second fixing part 50 is movable to the first fixing part by the latch protrusion of the extension arm. In addition, the main hook 52 is supported by walking the other side of the spinous process of the adjacent vertebra, as shown in Figure 10a. In addition, the auxiliary hook 53 is extended from one side of the main hook to support the upper side of the vertebral vertebrae, which is supported by the main hook and the first fixing part only when the pole protrusion is broken and the main hook is broken. In order to prevent the 1st fixation from being separated from the spinous process, the auxiliary hook is used to walk the upper side of the pore to maintain a safer and more solid bond.

Figure 6a is a perspective view showing a second fixing part of the spinous process fixing device according to another embodiment of the present invention. Referring to FIG. 6A, the second fixing part 50 ′ has a hook-shaped main hook 52 ′ extending from one side of the hollow cylindrical member 51 ′ and the cylindrical member 51 ′ and bending upward. ) And an auxiliary hook 53 '. Since the cylinder member 51 ', the main hook 52', and the auxiliary hook 53 'are the same as those of FIG. 5A, the description thereof will be omitted. However, in the second fixing part 50 ', as shown in FIG. 6B, the bolt 511' penetrates the cylinder member 51 'and presses and fixes the outer circumferential surface of the extension arm 41'. There is only a difference from the second fixing part 50 of FIG.

7A is a perspective view illustrating a second fixing part of the spinous process fixing device according to another embodiment of the present invention. Referring to FIG. 7A, the second fixing part 50 ″ includes a tubular member 51 ″, a main hook 52 ″ extending from one side of the tubular member and bent upwards, and an upper side at a predetermined position of the main hook. And an auxiliary hook 53 " and a nut 511 " respectively positioned on the upper and lower sides of the tubular member. Here, the main hook and the auxiliary hook are the same as those of the present embodiment, but the tubular member 51 " Is fixed using a nut 511 "positioned up and down, not a bolt. As shown in Fig. 7B, the nut 511 'and the tubular member 51" are attached to the extension arm 40 "of Fig. 4C. And nut (511 ") in order, set the position of the tube member, and then clamp the tube member on the extension arm by tightening the nut 511" at the top and bottom of the thread 41 "of the extension arm 40". Done.

According to another embodiment of the present invention, the spinous process fixing device of the present invention may further include a connecting member 30 for interconnecting the horizontal bar and the extension arm as shown in FIG.

8 is a perspective view showing one embodiment of the connecting member 30 used in the spinous process fixing device of the present invention. Referring to FIG. 8, the connecting member 30 includes a horizontal bar fixing part 31 in which a horizontal bar is fitted and an extension arm fixing part 32 intersecting with the horizontal bar fixing part to insert and fix the extension arm.

The horizontal bar fixing part 31 is a hollow cylindrical member, and the horizontal bar 22 is inserted through the central hole 312, and the inserted horizontal bar 22 is a cylindrical member by bolts 311 penetrating the cylindrical member. Fixedly coupled to In addition, the extension arm fixing part 32 is a hollow cylindrical member positioned to intersect the upper and lower sides of the horizontal bar fixing part, and the extension arm is inserted through the central hole 322, and the inserted extension arms 40 and 40 'are inserted. 40 ") is fixed to the extension arm fixing portion by bolts 321 penetrating through the tubular member.

Figure 9a is a perspective view showing another embodiment of the connecting member 30 'used in the spinous process fixing device of the present invention. As shown in FIG. 9A, the horizontal bar fixing part 31 ′ of the connecting member 30 ′ has a predetermined length in the longitudinal direction, and both ends thereof are bent inward to protrude into the horizontal bar insertion hole 312 ′. It has a fitting protrusion 313 'and also has an insertion hole (not shown) into which the bolt 311' can be inserted. In addition, the extension cancer fixing portion 32 'has the same configuration as the extension cancer fixing portion 32 seen above. Such a connecting member '30' may be used together with the plate-shaped horizontal bar 22 'shown in FIG. 9B. The lateral bar 22 'is a member having a plate shape and has a fitting groove 221' through which the fitting protrusion 313 'of the lateral bar fixing part 31' is fitted and guided at the corners of both sides. Has a screw hole 222 'into which the bolt 311' is fitted. The screw hole 222 'is perforated at predetermined intervals along the longitudinal direction of the horizontal bar, so that the fixing position of the connecting member 30' can be arbitrarily changed, and the position of the screw hole 311 'is fixed to the screw hole ( 222 ') to fix it.

Hereinafter, look at the state of use of the spinous process fixing device of the present invention. 10A is a plan view showing a state in which the spinous process fixing device of the present invention fixes the front and rear of the spinous process. As shown in FIG. 10A, the vertebral screws 20 are embedded in the vertebrae 12, 13, and 14, and then the rods 21 are seated on the heads and fixed using the nuts 201, and then the horizontal bars between the rods on both sides. (22) is used to bind to each other to fix the stable vertebrae. Then, the second fixing part 50 is inserted into the extension arm 40, and then the first fixing part 00 (42) attached to one end of the extension arm is supported by walking on one side of the spinous processes 111, 151 and 161 of the adjacent vertebrae. The other end of the arm is fixed to the connecting member 30 and the cylindrical member 51 of the second fixing part 50 is moved along the latch 41 of the extension arm to support the other side of the spinous process 111, 151 and 161. Since the projection 511 of the tubular member 51 is movable only in one direction along the latch 41 of the extension arm, the second fixing part 50 cannot retreat in the opposite direction when the final position is set. Of course, it is obvious that the second arm of FIGS. 4B and 4C and the second fixing part of FIGS. 5A, 6A and 7A may be used.

10B is a rear view illustrating a state in which the spinous process fixing device of the present invention fixes the lower end of the vertebral disc. As shown in FIG. 10B, the auxiliary hook 53 extends from one side of the main hook 52 to fix and support the upper side of the vertebrae 103, 113, 153 and 163 of the vertebrae. When the auxiliary hook is used as described above, it is possible to obtain the effect of more stably fixing the spinous process than when fixing the spinous process using only the hook of the first fixing part and the main hook of the second fixing part.

As described above, when the spinal processes of the adjacent vertebrae are fixed using the extension arm, the vertebrae having the spinous processes fixed by the first and second fixing parts move somewhat to the spine fixed by the conventional spinal fixing device. Because of this, the patient can be assisted in terms of life after surgery.

In another aspect, the spinous process fixing device of the present invention comprises: a first fixing part comprising a head portion extending over the top of the spinous process and a first extension arm extending from the head portion; A second extension arm extending from the head portion in parallel with the first extension arm; And a second fixing part penetrating the first extension arm and the second extension arm and supporting the lower portion of the spinous process to fix the spinous process.

Figure 11a is a schematic perspective view of the spinous process fixing device of another embodiment of the present invention. Referring to FIG. 11A, the spinous process fixing device of the present invention includes a first fixing part 1110, a second extension arm 1120, and a second fixing part 1130, and the first fixing part 1110 is a spinous process. And a first extension arm 1007 extending from the head portion in the longitudinal direction of the spine. The shape of the head portion 1005 is not particularly limited, but preferably includes a curved portion that is curved to catch on the spinous process. The head portion 1005 and the first extension arm 1007 may be configured to be integrally formed or detachable.

FIG. 11B is a perspective view illustrating a fastening method of the first fixing part 1110 and the second extension arm 1120 of the spinous process apparatus of the present invention. As shown in FIG. 11B, the second extension arm 1120 is preferably configured to be detachable from the first fixing portion 1110 for the convenience of the procedure. Specifically, in the case of implanting the spinous process fixing device of the present invention into the human body, after positioning the spinous process to fix the first fixing part 1110 including the head part 1005 and the first extension arm 1007 The second extension arm 1120 may be fixed to the head portion 1005 of the first fixing portion 1110. Thus, in order to fix the second extension arm 1120 to the head portion 1005, a male thread is formed at one end of the second extension arm 1120, the head portion 1005 has a screw hole and a female screw on its inner circumferential surface. Acid is formed. On the contrary, the end of the second extension arm 1120 may include a screw hole having a female thread formed on an inner circumferential surface thereof, and the end of the head portion 1005 may include a protrusion having a male thread formed thereon.

The second fixing part 1130 includes two insertion holes through which the first extension arm 1007 and the second extension arm 1120 pass, and the second fixing part includes the first extension arm 1007 and the second extension part. One or more threaded holes may be included for securing onto arm 1120. The second fixing part 1130 includes a concave part corresponding to the curved surface of the head part 1005 of the first fixing part at a portion coming into contact with the spinous process.

In the present invention, the first extension arm 1007 and the second extension arm 1120 are shown as a circular cylinder, but are not necessarily limited to such a shape, and may be implemented in the shape of a polygonal column such as a square pillar, a pentagonal pillar, and the like. It may be implemented in a thin wire shape.

The spinous process fixing device of the present invention can be used in connection with the spinal fixation device. The spinal fixation device is composed of a spine screw 23 embedded in the vertebrae and a rod 21 for connecting the spinal screw to correct the spine. The spinous process fixing device of the present invention can be applied to any type of spinal fixation device.

Spinal fixation device of another embodiment of the present invention includes a configuration for connecting the spinous process fixing device of the present invention to the spinal fixation device. Referring to FIG. 12A, the spinous process fixing device according to another embodiment includes a side bar 1140 and a first extension arm 1007 and a second extension of the first fixing part 1110 which bind opposite rods of the spinal fixing device to each other. It may further include a connection member 1200 for fixing the arm 1120 to the horizontal bar (1140).

Referring to FIG. 12B, the horizontal bar 1140 includes two left and right rod fixing links 1141 and 1141 'having rod inserting portions 1143 and 1143' into which each rod is inserted, and the left and right rod fixing links. 1141 and 1141 'are connected to each other by the connecting member 1200. The rod inserts 1143 and 1143 'may be formed to have a curvature or a size sufficient to surround the rod of the spinal column fixing device. Thread holes 1147 and 1147 'are present on the upper surfaces of the rod inserting portions 1143 and 1143' of the left and right rod fixing links 1141 and 1141 ', and rods are inserted into the rod inserting portions 1143 and 1143'. After inserting a screw having a bullet-like tip into the screw hole, the horizontal bar 1140 is fixed between the pair of rods.

The connection member 1200 may include a lower connection member 1150 connecting the left and right rod fixing links 1141 and 1141 ′ of the horizontal bar 1140, the first extension arm 1107, and the second extension arm 1120. It includes an upper connection member 1160 for fixing to the horizontal bar (1140). Receiving grooves are formed on the upper surface of the lower connecting member 1150 and the lower surface of the upper connecting member to accommodate the first extension arm 1107 and the second extension arm 1120.

Specifically, the upper connecting member 1160 is formed with receiving grooves (1161, 1162) for receiving a portion of the first extension arm and the second extension arm, the lower connection member 1150, the first extension arm and the second extension Receiving grooves 1151 and 1152 are formed to receive another portion of the arm. Accordingly, when the upper connection member 1160 and the lower connection member 1150 are fastened to each other, holes corresponding to the two insertion holes of the second fixing part 1130 are formed, and the first extension arm 1007 and the second extension therein are formed therein. Arm 1120 is inserted and secured.

Figure 13 is an exploded perspective view of the spinous process fixing device of Figure 11a. Referring to the detailed configuration and fastening method of each part in the present invention.

Referring to FIG. 13, the lower connection member 1150 has two threaded holes 1156 for fixing the insertion hole 1153 to which the extension bars of the left and right rod fixing links are inserted and the lower connection member 1150 to the horizontal bar 1140. 1157 and two screw holes 1154 and 1155 for connecting the upper connection member 1160 with the lower connection member 1150.

The upper connection member 1160 inserts the first extension arm 1007 and the second extension arm 1120 into the receiving groove between the upper and lower connection members, and then fixes the upper connection member 1160 to the lower connection member 1150. One or more threaded holes 1163 and 1164.

In the spinous process fixing device of this embodiment, the first fixing part 1110 and the second extension arm 1120 are inserted into two insertion holes of the second fixing part 1130, and then the screws are fixed to the screw holes 1133 and 1135.

The insertion hole 1153 of the lower connection member is formed with two hollow cylinders adjacent to each other, and the extension bars 1145 and 1145 'of the left and right rod fixing links 1140 and 1140' are inserted into the insertion hole 1153. Each is inserted. Screws are fixed to the screw holes 1154, 1155, 1156, and 1157 to prevent the extension bars 1145 and 1145 'of the left and right rod fixing links from moving. When the screw is tightened in this way, the screw is inserted and fixed between the two extension bars.

The first extension arm 1107 and the second extension arm 1120 of the first fixing part are fitted into holes formed when the lower connection member and the receiving grooves 1157, 1159, 1161 and 1162 of the upper connection member are engaged with each other. Screw is inserted into the threaded holes 1163 and 1164.

FIG. 14 is a perspective view illustrating a state in which the spinous process device of FIG. 11A is fastened to the spinal column fixing device, and FIG. 15 is a plan view illustrating a state in which the spinous process device of FIG. 11A is fastened to the spinal column fixing device.

Referring to FIGS. 14 and 15, the left and right rod fixing links 1141 and 1141 of the horizontal bar 1140 on the rod 21 of the spinal fixator including the spinal screw 23 for fixing the rod 21 to the vertebrae. The rod insertion portions 1143 and 1143 'of &quot; In this manner, the rod is inserted into the rod inserting portion, and then the screw is inserted into the screw holes 1147 and 1147 'and tightened so that the spinous process fixing device of the present invention is fixed between the opposing rods.

As shown in the plan view of FIG. 15, the extension bars 1145 and 1145 'of the left and right rod fixing links 1141 and 1141' are inserted to cross each other into the hollow cylindrical insertion holes connected adjacent to each other of the lower connecting member. When the screw is inserted into the screw holes 1156 and 1157 and tightened, the screw is pressed and fixed between these two extension bars 1145 and 1145 '.

16 is a perspective view showing a state where the spinous process apparatus of the present invention is implanted into the spine. As shown in FIG. 16, when the head part 1005 of the first fixing part is extended to the upper part of the spinous process, and the recess 1113 of the second fixing part 1130 supports the lower part of the spinous process, the spinous process ( 131 is fixed between the head portion 1005 of the first fixing portion and the recess portion 1131 of the second fixing portion. My

In another embodiment, the spinous process fixing device of the present invention may include two or more second fixing parts 1130 and 1130 'to fix several spinous processes on the spine, as shown in FIG. 17. The head portion 1005 of the first fixing portion 1110 spans the upper spinous process and the plurality of second fixing parts 1130 and 1130 'support the spinous process under each spinous process. The first fixing part and the second fixing part may be connected to the side bars to be used as shown in FIG. 18.

Extension bar (1145, 1145 ') of the left and right rod fixing link (1141, 1141') of the horizontal bar in the spinous process fixing device of the present invention, in addition to the circular cross-section, as shown in Figure 19a, or shown in Figure 19b It may be a polygon such as a pentagon. As such, when the cross-sectional shape of the extension bar of the rod fixing link is not circular, the rod fixing link can be prevented from rotating. When the extension bars 1145 and 1145 'extending from the rod insertion portions 1143 and 1143' are manufactured in a polygonal shape, the insertion hole 1153 of the lower connection member 1150 also has a cross section of a shape corresponding thereto. Each consists of a rectangle or a pentagon. In another example, the rod fixing link may be formed in a thin plate shape.

On the other hand, the spinous process device of the present invention may include an elastic structure that can accommodate the movement of the spine on the part of the first extension arm 1007 and the second extension arm 1120. Such an elastic structure can provide flexibility to bend according to the movement of the spine when the patient bends and the like, thereby reducing the degeneration of the spine after spinal surgery.

The elastic structure may be implemented by various methods. First, the first extension arm and the second extension arm may be formed of a shape memory alloy, a polyester band, or the like having a certain elastic force instead of a metal. Alternatively, a spring structure, a thin metal wire structure, or a coil structure may be formed on a part of the first extension arm and the second extension arm or formed into a thin plate.

In the present invention, the above components may be manufactured as independent components as described above, on the contrary, may be integrally formed for the convenience of the procedure or production. For example, when the horizontal bar is composed of two right and left rod fixing links, there is an advantage in that the gap between the rods can be arbitrarily adjusted. Instead, the rod fixing link of the horizontal bar can be integrated into one component. It may be. In this case, rod inserting portions 1143 and 1143 'accommodating the rods are formed at both ends of the extension bar 1145. As such, when the left and right rod fixing links 1141 and 1141 ′ of the horizontal bar are integrally formed, only one insertion hole may be formed in the lower connection member 1160, as shown in FIG. 21. In addition, both the horizontal bar and the upper and lower connecting members may be formed integrally.

The spinous process fixing device of the present invention may be made of synthetic resin or metal or made of a material such as artificial ligaments, and may alternatively be made of a material selected from the group consisting of bone cement, ceramics, titanium, and silicon. It is not limited to. In addition, each part of the spinous process fixing device of the present invention may be manufactured in the form of wire or flake so as to flexibly respond to the movement of the human body. In the above embodiment, the configuration in which each component is fastened by screws has been described as an example, but as the material or shape of each component is changed, the components may be fastened by means other than the screws.

Although the above has been described in detail with reference to a preferred embodiment of the present invention, various changes, modifications can be made by those skilled in the art within the scope of the technical idea of the present invention. It will be apparent to those who have knowledge. Therefore, the protection scope of the present invention should be interpreted as including all such possible variations or modifications.

The present invention includes an extension arm extending from a predetermined position of the lateral bar or rod of the vertebral fixation device which is operated on the vertebra and a first fixing part and a second fixing part which can hold the spinous process of the adjacent vertebrae at one end of the extension arm. By holding the spinous processes of the adjacent vertebrae, the load applied to the adjacent vertebrae can be distributed, and even after fixation, the adjacent vertebrae can flow within a limited range, thereby preventing the degenerative degeneration that may occur in the adjacent vertebrae.

The spinous process fixing device of the present invention can be used in any conventional spinal fixation device and thus has excellent compatibility.

Furthermore, the spinous process fixing device of the present invention can prevent degenerative degeneration of adjacent vertebrae, thereby reducing the risk of reoperation, thereby providing a remarkable effect of drastically reducing the risk of infection and pain.

Claims (28)

Extension cancer extending to the spinous process of the adjacent vertebrae; A first fixing part attached to one end of the extension arm; A second fixing part inserted into the extension arm and guided to face the first fixing part, The first fixing part supports one side of the spinous process, and the second fixing part supports the other side of the spinous process to fix the spinous process of the adjacent spinal spine. 2. The spinous process fixing device according to claim 1, wherein the first fixing part is detachably formed at the extension arm and is a hook shaped hook attached to one end of the insertion tube and the insertion tube fitted to the extension arm. The method of claim 1, wherein the extension arm further comprises a moving means formed in a predetermined position on the upper side of the first fixing part, the second fixing part is a spinous process fixed, characterized in that guided by the moving means of the extension arm. Device. 4. The spinous process fixing device according to claim 3, wherein the moving unit is a thread formed on an outer circumferential surface of the extension arm. 5. The spinous process fixing device according to claim 4, wherein the moving means is a latch protrusion formed on an outer circumferential surface of the extension arm. According to claim 1 or claim 4, wherein the second fixing portion is inserted into the guide guide is inserted into the guide arm and the hook-shaped main hook attached to one side of the insertion tube and a predetermined inclination angle at a predetermined position of the main hook. The spinous process fixing device, characterized in that consisting of a hook-shaped auxiliary hook extending downward. The method of claim 5, wherein the second fixing portion is inserted into the extension arm is guided and the hook-shaped main hook attached to one side of the insertion tube and extends downward with a predetermined inclination angle at a predetermined position of the main hook. It is made of a hook-shaped auxiliary hook, the insertion tube is a spinous process fixing device, characterized in that the upper end has a projection that is interlocked with the latch projection of the extension arm. 7. The spinous process fixing device according to claim 6, wherein the insertion tube of the second fixing part is fixed to the extension arm by a bolt attached to the side after being inserted into the extension arm. The insertion cylinder of the second fixing part is inserted into the extension arm and is positioned above and below the insertion cylinder and is fixed to the extension arm by a nut screwed into the thread of the extension arm. Spinous process fixing device. The spinous process of claim 1, wherein the extension arm is coupled to the lateral bar of the spinal column fixing device through a connecting member. The spinous process fixing device according to claim 1, wherein the extension arm is coupled through a connecting member mounted on the rod of the spinal column fixing device. 11. The spinous process fixing device according to claim 10, wherein the connecting member comprises a horizontal bar fixing part of a predetermined length to which the horizontal bar is fitted and an extension arm fixing part intersecting with the horizontal bar fixing part to insert and fix the extension arm. 13. The method of claim 12, wherein the horizontal bar fixing part is a hollow cylindrical member in which the horizontal bar is inserted and fixed, and the extension arm fixing part is a hollow cylindrical member in which the extending arm is fixed, and the horizontal bar and the extending arm are respectively hollow. The spinous process fixing device which is fixed by the bolt which penetrates a cylindrical member. 13. The method of claim 12, wherein the horizontal bar fixing portion is a member that is fitted to both sides of the sliding side of the plate-shaped horizontal bar having a guide groove on the side and the extension arm fixing portion is mounted at a predetermined position of the horizontal bar fixing portion so that the extension arm is inserted and fixed It is a hollow cylindrical member, the horizontal bar fixing portion is fastened and fixed by a bolt in a plurality of insertion holes penetrated spaced apart at regular intervals to the plate-shaped horizontal bar and the extension arm fixing portion is coupled to the extension arm by the bolt The spinous process fixing device, characterized in that. A first fixing portion comprising a head portion extending over the spinous process and a first extension arm extending from the head portion; A second extension arm extending from the head portion in parallel with the first extension arm; And And a second fixing part penetrating the first extension arm and the second extension arm and supporting the lower portion of the spinous process to fix the spinous process. 16. The method of claim 15, wherein the second fixing portion includes two insertion holes through which the first extension arm and the second extension arm pass, and one for fixing the second fixing portion on the first extension arm and the second extension arm. The spinous process fixing device comprising the above screw hole. 16. The spinous process fixing device according to claim 15, wherein the second extension arm is configured to be detachable from the head of the first fixing part. 2. The spinous process fixing device according to claim 1, wherein the device includes two or more second fixing parts to fix the plurality of spinous processes. The sidebar according to claim 1, wherein the device binds the opposite rods of the spinal fixator to each other: and And a connecting member for fixing the first fixing part and the second fixing part to the horizontal bar. 20. The apparatus of claim 19, wherein the horizontal bar includes two left and right rod fixing links formed with rod inserts to surround the rods in contact with a pair of opposed rods, and the left and right rod fixing links are connected to each other by the connecting member. The spinous process fixing device, characterized in that connected. 21. The apparatus of claim 20, wherein the connection member comprises: a lower connection member connecting the left and right rod fixing links of the horizontal bar; And An upper connecting member for fixing the first extension arm and the second extension arm, the upper surface of the lower connecting member and a lower surface of the upper connecting member receiving the first extension arm and the second extension arm; The spinous process fixing device, characterized in that the groove is formed. The method of claim 21, wherein the lower connection member is a parallel insertion hole in which two horizontal bars are inserted and fixed, Two screw holes for fixing the lower connecting member to the sidebar; and The spinous process fixing device comprising two screw holes for connecting the upper connection member and the lower connection member. 22. The method of claim 21, wherein the upper connecting member comprises at least one screw hole for fixing the upper connecting member to the lower connecting member after inserting the first extension arm and the second extension arm in the receiving groove between the upper and lower connecting members. Spinous process fixing device. 23. The spinous process fixing device according to claim 22, wherein the cross-sectional shape of the insertion hole is circular or polygonal. 16. The spinous process anchoring device according to claim 15, wherein the device includes an elastic structure capable of receiving movement of the spine formed on a part of the first extension arm and the second extension arm. 26. The spinous process fixing device according to claim 25, wherein the elastic structure is made of a shape memory alloy or a polyester band. 26. The spinous process fixing device according to claim 25, wherein the elastic structure is a spring structure, a fine metal wire structure or a coil structure formed on a part of the first extension arm and the second extension arm. 20. The spinous process fixing device according to claim 19, wherein the left and right rod fixing links of the horizontal bar are integrally formed, and one insertion hole is formed in the lower connection member.

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