TWI508699B - A spine joint hook device - Google Patents

Description

Spinal joint hook device

The invention relates to a spinal joint hook device, in particular to an articular projecting hook, which has a receiving seat and a fixing screw, and a hook arm is integrally extended on one side of the receiving seat, and the first 1/2 segment is parallel to the front The external extension, and approximately the 1/2 segment of the posterior and downward arc, hooks the spinal joint hook device of the position of the vertebrae.

The traditional spinal disease, except for the damage caused by the fracture, the other large proportion is the lesion or aging of the intervertebral disc, which makes the intervertebral space narrow, the intervertebral joint and the nerve hole between the joints (intervertebral foramen) It is also relatively narrow, and is pressed to the nerve roots of the spinal cord, causing paralysis or pain.

At present, the treatment of the above problems is generally based on the implantation of a pedicle screw and a rod to open the intervertebral space.

Or when the spine and spinal nerves are painful due to the narrowing and compression of the triangular tissue of the surrounding skeletal tissue, the physician will cut and cut the lamina bone of the vertebral body to The stenotic compression of the spinal canal space is enlarged, and the spinal nerves are released to relieve the painful operation.

But cut and cut the lamina skeleton of the vertebral body After the tissue, the open vertebral body lacks intact skeletal tissue support, and if the patient suffers from osteoporosis, the screw that is screwed into the vertebral pedicle of the vertebral body will be loose because of osteoporosis. The problem of the complete skeletal tissue coating, coupled with the connecting rod pulling stress, makes the pedicle screw very easy to loosen the vertebral pedicle position of the original implant.

Therefore, the key to solving the above problems is how to strengthen the pedicle screw fixation in the absence of skeletal tissue and osteoporosis, or discard the pedicle screw and directly hook the vertebral plate ( Lamina) The vertebral body joint position after the skeletal tissue has been cut off, avoiding the stress of the connecting rod pulling out the pedicle screw, causing the loosening of the pedicle, or even the vertebral body damage, etc., and inventing a new "spine joint A hook device" to improve the aforementioned problems.

Therefore, the simple solution device of the foregoing problem is a spinal joint hook device, characterized in that the device comprises an articular protruding hook, a receiving seat and a fixing screw, the receiving seat can erect and connect a connecting rod, and Pressing and fixing the fixing screw to fix the receiving seat and the connecting rod; one side of the receiving seat extends integrally with a hook arm, and the hook arm extends slightly parallel to the connecting rod, and then forwards The lower curvature holds the position of the axon of a vertebral body.

Therefore, an object of the present invention is to provide a spinal joint hook Device.

Another object of the present invention is to provide an integral connection of a hook arm, which is slightly parallel to the front 1/4-1/2 section, and about 1/2-3/4 after the downward arc. A spinal joint hook device in the position of a vertebral body.

It is still another object of the present invention to provide a pedicle screw comprising one or more pedicle screws, one or more connecting rods, a plurality of fixation screws, and one or more articular hooks for screwing into the vertebral body pedicle And a spinal joint hook device that hooks the same vertebral body joint position.

A further object of the present invention is to provide a pedicle screw or a socket for the articular process hook, which can be a U-shaped groove, a C-shaped groove, or an O-shaped perforation, which can be combined with a spinal joint for fixing the fixing screw Hook device.

Therefore, the spinal joint hook device of the present invention is characterized in that the device comprises a joint hook, and has a receiving seat and a fixing screw, the receiving seat can erect and connect a connecting rod, and is screwed by the fixing screw. Pressing and fixing the socket to the connecting rod; one side of the receiving seat extends integrally with a hook arm, the hook arm extends slightly parallel to the connecting rod, and further bends a spine forward and downward The position of the facet joint of the vertebral body.

The spinal joint hook device, wherein the hook arm is located outside with respect to the joint of the vertebral body, the first 1/3-1/2 segment of the hook arm is slightly parallel to the link and extends forward through the vertebra After the transverse convex bone of the body, the 1/2-2/3 segment of the hook arm is bent downward to bend the bone tissue below the joint and the anterior position of the same vertebral body.

The spinal joint hook device, wherein the hook arm is located inward of the joint position of the vertebral body, the 1/4-1/3 segment of the hook arm is slightly parallel to the link, and the hook arm The posterior 2/3-3/4 segment is directly in the downward arc and is bent and hooked to the bone tissue below and in the anterior position of the same vertebral body.

The spinal joint hook device, wherein the receiving seat can be set as a U-shaped slot open socket, or a C-shaped slot opening socket, or an O-shaped piercing socket, and the connecting rod is screwed together with the fixing screw fixed.

And a spinal joint hook device of the present invention, comprising: one or more pedicle screws, comprising a nail head end receiving seat and a nail body end, wherein an inner surface of one of the nail head end receiving seats is provided Thread, and a screw thread at the end of the nail body, can be screwed into the vertebral body of the vertebral body of the vertebral body; one or more connecting rods can be connected and mounted into the socket end socket; a fixing screw, which can be screwed to the nail head end receiving seat, and combined with pressing and fixing the connecting rod and the pedicle screw; wherein the spinal joint hook device further comprises one or more articular protruding hooks, having a a socket for erecting and connecting the connecting rod, and screwing with the fixing screw to fix the receiving seat and the connecting rod; one side of the receiving seat extends integrally with a hook arm, and the hook arm is slightly parallel The connecting rod extends outwardly, and further bends forward and downward to grasp the position of the vertebral body of the vertebral body at which the pedicle screw is screwed to prevent the pedicle screw from being affected by the pedicle screw. The link is stressed and pulled out of the vertebral pedicle position.

The spinal joint hook device, wherein the hook arm is located outside the joint of the vertebral body, and the first 1/3-1/2 segment of the hook arm is slightly parallel to the joint The rod extends forward and passes over the transverse skeletal bone of the vertebral body, and then the 1/2-2/3 segment of the hook arm is bent downward to bend the bone below the joint vertebral body and the front position. Organizationally.

The spinal joint hook device, wherein the hook arm is located inward of the joint position of the vertebral body, the 1/4-1/3 segment of the hook arm is slightly parallel to the link, and the hook arm The posterior 2/3-3/4 segment is directly in the downward arc and is bent and hooked to the bone tissue below and in the anterior position of the same vertebral body.

The spinal joint hook device, wherein the articular hook is behind the pedicle screw attached to the connecting rod, and the hook arm of the joint hook is forwardly inserted through the vertebral screw The position of the vertebral pedicle is hooked on the skeletal tissue below and behind the articular process on the same vertebral body.

The spinal joint hook device, wherein the nail end socket of the pedicle screw or the socket of the joint hook can be set as a U-shaped slot open socket or a C-shaped slot socket socket, Or an O-shaped piercing socket, and screwed together with the fixing screw to fix the connecting rod.

The vertebral articular hook device refers to the posture of the patient who is undergoing surgery on the operating table before and after, and the direction is relatively parallel to the autologous spine of the spine, facing the direction of the patient's head and foot, and distinguishing It is "before, after, forward or backward".

The lower and upper points are defined as "downward or upward" in the direction in which the operator visually looks at the patient; or defined above or below the object, centered on the object being referred to.

Inside and outside, it is the location of an object that is referred to, and the correlation is determined by the average of the position of the center point of the object, and is divided into the inside and the outside of the object. The position, orientation, or orientation of each item referred to is indicated by a graphic illustration and a label.

1‧‧‧Spine joint hook device

10‧‧‧ Joint hook

11‧‧‧ socket

12‧‧‧ fixing screws

13‧‧‧ Connecting rod

14‧‧‧ hook arm

141‧‧‧First 1/3-1/2

142‧‧‧After 1/2-2/3

2‧‧‧Spine joint hook device

20‧‧‧ Joint hook

21‧‧‧ socket

22‧‧‧ fixing screws

23‧‧‧ Connecting rod

24‧‧‧ hook arm

241‧‧‧1⁄4/1/3

242‧‧‧2/3-3/4

111‧‧‧U-shaped slot opening

112‧‧‧C-slot opening

113‧‧‧O type perforation

50‧‧‧ pedicle screw

51‧‧‧nail head end socket

52‧‧‧nail end

511‧‧‧ inner surface

521‧‧‧ thread

30‧‧‧Spine vertebral body

32‧‧‧Pedicle

31‧‧‧Articular process

32‧‧‧transverse

60‧‧‧ pedicle screw

61‧‧‧nail head end socket

62‧‧‧nail end

611‧‧‧ inner surface

621‧‧‧ threaded teeth

40‧‧‧Spine vertebral body

41‧‧‧Articular process

42‧‧‧Pedicle

1 is a schematic view showing a preferred embodiment of a spinal joint hook device of the present invention. (Figure 1 is a representative figure)

Fig. 2 is a schematic view showing another embodiment of the spinal joint hook device.

Fig. 3 is a schematic view showing the implementation of different forms of the socket of the spinal joint hook device.

Fig. 4 is a schematic view showing a combination of a specific example of the spinal joint hook device.

Fig. 5 is a schematic view showing another specific example of the combination of the spinal joint hook device.

In order to further illustrate the present invention, the embodiments are described below with reference to the accompanying drawings. Fig. 1 and Fig. 2 show two preferred embodiments of the spinal joint hook device of the present invention.

In Fig. 1, a first aspect of the spinal joint hook device 1 is characterized in that the spinal joint hook device 1 comprises an articular projecting hook 10, The utility model has a receiving seat 11 and a fixing screw 12, the receiving seat 11 can erect and connect a connecting rod 13 , and is screwed and pressed by the fixing screw 12 to connect the receiving seat 11 and the connecting rod 13; the receiving seat On one side of the ellipse, the integral link extends with a hook arm 14 which extends slightly parallel to the connecting rod 13 and further positions the axon 31 of the spinal vertebral body 30 in a downward and downward arc. (As shown in Figure 4)

In addition, in FIG. 1, the first type of spinal joint hook device 1 is in which the hook arm 14 is positioned outside with respect to the facet 31 of the vertebral body 30 (as shown in FIG. 4), which is the front of the hook arm 14. /3-1/2 segment 141, which extends slightly parallel to the link 13, passes over the bone of the transverse process 32 of the vertebral body 30, and then the 1/2-2/3 segment 142 of the hook arm 14 is downward The curved curvature is hooked on the bone tissue below and in front of the articular process 31 above the same vertebral body 30.

In Fig. 2, a second aspect of the spinal joint hook device 2 is characterized in that the spinal joint hook device 2 comprises an articular projecting hook 20 having a receiving seat 21 and a fixing screw 22, the receiving seat 21, a connecting rod 23 can be erected and connected, and the fixing screw 22 is screwed and pressed to connect the receiving seat 21 to the connecting rod 23; the hooking arm 24 is integrally connected to one side of the receiving seat 21, and the hook The arm 24 extends slightly parallel to the link 23 and further positions the axon 41 of the vertebral body 40 in a forward and downward arc. (as shown in Figure 5)

And in FIG. 2, the second spinal joint hook device 2, wherein the hook arm 24 is located inside relative to the joint 41 of the vertebral body 40 (as shown in FIG. 5), the hook arm 24 is front 1 /4-1/3 segment 241, which is slightly parallel to the link 23, and the hook arm 24 is 2/3-3/4 segment 242, that is, directly downward arc The bone tissue near and in front of the articular process 41 above the same vertebral body 40 is grasped by the proximal and the curved body.

In Fig. 3, the spinal joint hook device 1 (other embodiments are the same), wherein the receiving seat 11 can be set as a U-shaped slot opening 111 receiving seat, or a C-shaped slot opening 112 to receive the seat, or a The through hole 113 receives the seat, and is screwed in conjunction with the fixing screw 12 to fix the connecting rod 13.

4 and 5 are two combinations of the spinal joint hook devices 1 and 2 of the present invention; in FIG. 1 and FIG. 4, the spinal joint hook device 1 includes one or more pedicles The screw 50 has a nail head end receiving seat 51 and a nail body end 52. One end surface 511 of the nail head end receiving seat 51 is provided with a thread, and the nail body end 52 is provided with a thread 521 which can be screwed into one The vertebral body of the vertebral body 30 has 32 skeletal tissues; one or more connecting rods 13 are slidably received in the nail head end receiving seat 51; a plurality of fixing screws 12 can be screwed to the nail head end a socket 51, and a combination of the fixing and fixing the connecting rod 13 and the pedicle screw 50; wherein the spinal joint hook device 1 further comprises one or more articular hooks 10, and has a receiving seat 11 which can be erected And connecting the connecting rod 13 and screwing with the fixing screw 12 to connect the receiving seat 11 and the connecting rod 13; on the side of the receiving seat 11, a hook arm 14 is integrally connected, and the hook arm 14 first Slightly parallel to the connecting rod 13 extending outwardly, and then arching forward and downward arcing the pedicle screw 50 into the vertebral body 30 vertebral arch Root 32 position of the same vertebra The position of the facet 31 of the body 30 prevents the pedicle screw 50 from being pulled out of the vertebral pedicle 32 by the stress of the link 13.

Further, the spinal joint hook device 1 is configured such that when the hook arm 14 is positioned outside with respect to the facet 31 of the vertebral body 30 (as indicated by an arrow in FIG. 4), the first 1/3 of the hook arm 14 is The 1/2 segment 141 is slightly parallel to the link 13 (as indicated by the arrow 2 in FIG. 4), passes over the bone of the transverse process 32 of the vertebral body 30, and then 1/2 of the hook arm 14 The -2/3 segment 142 is downwardly curved (as indicated by the arrow 3 in Fig. 4) and is curved to grasp the bone tissue below and in the forward position of the articular process 31 above the same vertebral body 30.

And the articular hook 10 is connected to the pedicle screw 50 on the connecting rod 13 , and the hook arm 14 of the articular hook 10 is inserted into the vertebra screwed through the pedicle screw 50 The position of the vertebral pedicle 32 is hooked on the bone tissue below and in front of the articular process 31 above the same vertebral body 30.

2 and 5, the spinal joint hook device 2 includes one or more pedicle screws 60 having a nail end receiving seat 61 and a nail end 62, one of the nail end receiving seats 61 The inner surface 611 is provided with a thread, and the nail end 62 is provided with a thread 621 which can be screwed into the skeletal tissue of the vertebral arch 42 of the vertebral body 40; one or more connecting rods 23 can be connected to the mounting space. The nail head end receiving seat 61; a plurality of fixing screws 22 screwed to the nail head end receiving seat 61, and the pressing and fixing the connecting rod 23 and the pedicle screw 60; wherein: the spinal joint The hook device 2 further includes one or more articular hooks 20, and has a receiving seat 21 for erecting and connecting the connecting rod 23, And the fixing screw 22 is screwed and pressed to connect and fix the receiving seat 21 to the connecting rod 23; on the side of the receiving seat 21, a hook arm 24 is integrally connected, and the hook arm 24 is slightly parallel to the connecting rod 23 Extending outwardly, and then tilting forward and downward to grasp the position of the articular process 41 of the same vertebral body 40 where the pedicle screw 60 is screwed into the pedicle 42 of the spinal vertebral body 40, preventing the pedicle screw 60 is pulled out of the vertebral pedicle 42 by the stress of the link 23.

And the spinal joint hook device 2, wherein the hook arm 24 is located on the inner side with respect to the joint 41 of the vertebral body 40 (as indicated by an arrow in FIG. 5), the hook arm 24 is first 1/4- The 1/3 segment 241 is slightly parallel to the link 23 (as indicated by the arrow 5 in FIG. 5), and the hook arm 24 is followed by the 2/3-3/4 segment 242, that is, directly downward (eg, As shown by the arrow 6 of Fig. 5, the arc is close to and curved to hold the bone tissue below and in front of the articular process 41 above the same vertebral body 40.

The articular hook 20 is also attached to the rear of the pedicle screw 60 on the link 23.

1‧‧‧Spine joint hook device

10‧‧‧ Joint hook

11‧‧‧ socket

12‧‧‧ fixing screws

13‧‧‧ Connecting rod

14‧‧‧ hook arm

141‧‧‧First 1/3-1/2

142‧‧‧After 1/2-2/3

Claims (7)

A spinal joint hook device, comprising: a joint hook, having a receiving seat and a fixing screw, the receiving seat can erect and connect a connecting rod, and screwing with the fixing screw to make the The socket is fixedly connected to the connecting rod; a hook arm is extended on one side of the socket, the hook arm extends slightly parallel to the connecting rod, and the joint of the vertebra body is further curved forward and downward. a protruding position; wherein the hook arm is located outside with respect to the joint of the vertebral body, the first 1/3-1/2 of the hook arm is slightly parallel to the link and extends forward, and the transverse process of the vertebral body After the upper part of the bone, the 1/2-2/3 section of the hook arm is bent downward to bend the bone tissue below the joint and the anterior position of the same vertebral body. The spinal joint hook device according to claim 1, wherein the hook arm is slightly parallel to the front 1/4-1/3 of the anterior portion of the vertebral body. The rod extends forward, and the 2/3-3/4 segment of the hook arm is directly downwardly curved and curved to hold the bone tissue below and in front of the joint above the same vertebral body. The spinal joint hook device according to claim 1, wherein the receiving seat can be a U-shaped slot open socket, or a C-shaped slot opening socket, or an O-shaped piercing socket, and combined The fixing screw is screwed to fix the connecting rod. A spinal joint hook device comprising: one or more pedicle screws, comprising a nail head end receiving seat and a nail body end, the inner surface of one of the nail head end receiving seats is provided with a thread, and the nail The body has a screw thread that can be screwed into the vertebral body of the vertebral body of the spinal vertebral body; one or more connecting rods can be connected and placed into the socket end of the nail head; a plurality of fixing screws can be screwed Cooperating with the nail head end receiving seat, and combining and fixing the connecting rod and the pedicle screw; wherein the spinal joint hook device further comprises one or more articular protruding hooks, and has a receiving seat for erecting And connecting the connecting rod, and screwing with the fixing screw to fix the receiving seat and the connecting rod; one side of the receiving seat extends integrally with a hook arm, and the hook arm is slightly parallel to the connecting rod outward Extending, and further downwardly, arching the position of the vertebral body of the vertebral body at which the pedicle screw is screwed to prevent the pedicle screw from being stressed by the connecting rod Being pulled out of the vertebral pedicle position; wherein the hook arm is opposite to When the position of the facet of the vertebral body is on the outer side, the first 1/3-1/2 section of the hook arm is slightly parallel to the link and extends forward, after passing over the transverse body of the vertebral body, and then after the hook arm The /2-2/3 segment is curved downwardly to grasp the bone tissue below and in front of the articular process above the same vertebral body. The spinal joint hook device according to claim 4, wherein When the hook arm is located inside with respect to the position of the facet of the vertebral body, the 1/4-1/3 of the front side of the hook arm extends slightly parallel to the link, and the hook arm is 2/3-3/4 behind. The segment is directly close to the curved arc and curved to grasp the bone tissue below the joint and the anterior position of the same vertebral body. The spinal joint hook device of claim 4, wherein the articular hook is behind the pedicle screw attached to the link, and the hook arm of the articular hook extends forward through the vertebra The position of the vertebral pedicle of the vertebral body, which is screwed into the pedicle screw, is hooked on the bone tissue below and behind the articular process on the same vertebral body. The spinal joint hook device according to the fourth aspect of the invention, wherein the nail end receiving seat of the pedicle screw or the receiving seat of the articular hook can be set as a U-shaped slot opening socket. Or a C-shaped slot open socket, or an O-shaped piercing socket, and screwed together with the fixing screw to fix the connecting rod.