TWI466653B - A multi - segment spine spinous process - Google Patents

Description

Multi-segment spine process

The present invention relates to a multi-segment spinal spinous process connecting device, in particular to a device in a multi-segment adjacent vertebral spinous process of a human spine, having two side panels and a plurality of long trough-shaped perforations. The multi-segment spinal spinous process connecting device can be adapted to each of the interspinous processes and to fix a plurality of the vertebral body spinous processes.

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 general treatment of the above problems, in addition to the implantation of a pedicle screw (Pedicle screw) and a rod (rod) to open the intervertebral space, or implant the artificial disc filler (Disk cage, or spacer) filling the vertebra In addition, there is no artificial spinal implant that is simpler, easier to install, and safe and effective to solve this problem.

Therefore, the key to solving the above problems is how to expand the nerve hole between the vertebrae and relieve the nerve root of the oppressed nerve, but make the operation simple and effective, and retain the "vertebral pedicle", so as to have the largest spinal surgery. Opportunity, and the upper and lower multi-section adjacent vertebrae can be completely fixed and stabilized. Or the vertebral spinous processes of the upper and lower vertebral bodies can be further integrated into the body by the device to increase the stability after installation, and the upper and lower multi-section adjacent vertebral body instability can be treated. The nerve pain caused by the discomfort.

Therefore, the spine vertebral bodies of a plurality of adjacent segments are directly connected to the spinous process of the multi-segment in a manner that does not destroy the largest part, and the last implanted pedicle screw (Pedicle) is retained. The opportunity of screw) can effectively solve the problem of nerve root compression, and innovatively invented a "multi-segment spine process" to improve the aforementioned problems.

Therefore, the simple solution device of the foregoing problem is a multi-segment spine process, which is connected between spine processes of a plurality of spinal vertebral bodies, and is characterized in that it comprises two side pieces, and the like The lateral length of the side panel may be connected to three vertebral spinous processes or more than three, or one or both ends of the side panels may be located on the spinous processes of the vertebral bodies or between the spinous processes; the side panels are provided with a plurality of segments The fixed segment, and the second and second sides are located substantially on the left and right sides of the spinous processes, and between the fixed segments, a plurality of long trough-shaped perforations slightly parallel to the long sides of the side panels are disposed, and are located slightly a position between the spinous processes; the multi-segment spinal spinous process connecting device further includes a plurality of connecting members respectively penetrating the long trough-shaped perforations laterally, the side panels being movablely connected to the left and right sides, and the side panels The relative movement of the connecting members is such that the fixed segments are aligned to the maximum extent of the vertebral body spinous processes, and the connecting members are forced to clamp the vertebral body spinous processes.

It is therefore an object of the present invention to provide a multi-segment spine process.

Another object of the present invention is to provide a plurality of vertebral spine processes, including two side pieces for connecting three spinous processes or more, a plurality of long groove-shaped perforations, and a plurality of The connecting members respectively pass through the long trough-shaped perforations to fix the spinous processes and the multi-segment spinal spinous process connecting devices.

Another object of the present invention is to provide a preventing protrusion cusp on the side panels that are not in the same straight line and are not of the same length. The connecting member has a flange stop portion and a pressing end, and the plurality of fixing members can be locked. And further comprising a plurality of middle members that naturally conform to the interspinous angle in a pendulum manner, and the middle member can be an accommodation space saddle member, and the plurality of convex ribs or grooves are provided on the side panels A multi-segment spine process.

A further object of the present invention is to provide one or both ends of the side panels, and the long groove-shaped perforations are provided, and the connecting members respectively pass through the side panels and the middle members, and the side panels have one end or two The mid-piece of the end is in a pendulum manner, and the natural movement moves in accordance with the angle and position of the interspinous process to form a multi-segment spinous process of the spinous vertebral body.

Therefore, the multi-segment spinous process device of the present invention is coupled between spine processes of a plurality of spinal vertebral bodies, and is characterized in that it comprises two side pieces, and the lateral lengths of the side pieces can be Connecting three vertebral spinous processes or more than three, or one or both ends of the side panels are located on the spinous processes of the vertebral bodies, or between the spinous processes; the side panels are provided with a plurality of fixed segments, and two 2 is relatively located on the left and right sides of the spinous processes, and between the fixed segments, a plurality of long trough-shaped perforations slightly parallel to the long sides of the side panels are disposed, and are located slightly between the spinous processes; The multi-segment spinal spinous process connecting device further includes a plurality of connecting members respectively penetrating the long trough-shaped perforations laterally, and the side panels are movablely connected to the left and right, and the side panels and the connecting member are relatively moved. The maximum extent of the fixed segments is aligned with the vertebral spinous processes, and the links urge the side panels to clamp the spinal spinous processes.

The fixed segments occupy at least 4/7 or 3/6 of the total length of the side panels, and the length of the long sides of the long troughs is approximately equal to the distance between the spinous processes of an adult vertebral body, about 8-22 PCT (mm).

The multi-segment spinal spinous process connecting device, wherein the fixed segments are provided with a plurality of blocking protrusions that can contact or block the movement of the spinous processes held by the spines, or fix the spinous processes by the spines, and the like The cusps of the protrusions are on the side panels on the left and right sides of the spinous processes, and the non-two pairs are opposite to each other in the same lateral straight line, and the blocking protrusions on the side panels of the equivalent side are also not the same length, so that the side panels are slanted to the left and right. When the protrusion is fixed, the blocking protrusion cusps do not directly penetrate the spinous bones relatively.

The multi-segment spinal spinous process connecting device, wherein one end of the connecting member is provided with a flange stopping portion for abutting against the circumference of the long groove-shaped perforation, and the other end is provided with a pressing end, and the connecting members further comprise A plurality of fixing members are fixed to the pressing end and are moved toward the flange stopping portion, that is, the pressing force presses the fixing segments to tightly fix the spinous processes.

The multi-segment spinal spinous process connecting device further comprises a plurality of middle members each provided with a perforation, the connecting members respectively passing through the long trough-shaped perforations of the side panels, the perforations of the middle member, and the other side The long trough-shaped perforations of the sheets are movable to be placed between the spinous processes, and the middle members are naturally oscillated to conform to the positional angle between the interspinous processes.

The multi-segment spine process, wherein the middle members are each a saddle member having a bottom plate connecting two upright plates, the bottom plate and the upright plates joining to create an accommodation space, and the uprights The perforations are provided transversely to the plate.

The multi-segment spine process, wherein the side panels are provided with a plurality of raised ribs or a plurality of concave grooves are cut.

Another multi-segmental spinous process device of the present invention is coupled between spinous processes of a plurality of vertebrae, characterized in that it comprises two side pieces, and the lateral length of the side pieces Three vertebral spinous processes or more than three may be connected, or one or both ends of the side panels are located on the spinous processes of the vertebral bodies, or between the spinous processes; the side panels are provided with a plurality of fixed segments, and 22 is relatively located on the left and right sides of the spinous processes, and between the fixed segments, a plurality of long trough-shaped perforations slightly parallel to the long sides of the side panels are disposed, and are located slightly between the spinous processes The device further includes a plurality of connecting members respectively penetrating the long trough-shaped perforations laterally, the side panels being movablely connected to the left and right, and the side panels and the connecting member are relatively moved to maximize the fixed segments Aligning the vertebral body spinous processes, and the connecting members are forced to hold the side vertebral body spinous processes; and the device further comprises a plurality of middle members each having a perforation One or both ends of the side panel are provided with the long groove-shaped perforations, and the connecting members respectively pass through the side panels The long trough-shaped perforation, the perforation of the middle piece, and the long trough-shaped perforation of the other side piece, the middle piece can be movably hung between the spinous processes, and the side pieces are connected at one end or two ends The middle members are moved by the connecting members, and the natural swing adjustment conforms to the position and angle between the spinous processes to form a non-fusion effect of the spinal vertebral bodies.

The multi-segment spinal spinous process connecting device, wherein the fixed segments are provided with a plurality of blocking protrusions that can contact or block the movement of the spinous processes held by the spines, or fix the spinous processes by the spines, and the like The cusps of the protrusions are on the side panels on the left and right sides of the spinous processes, and the non-two pairs are opposite to each other in the same lateral straight line, and the blocking protrusions on the side panels of the equivalent side are also not the same length, so that the side panels are slanted to the left and right. When the protrusion is fixed, the blocking protrusion cusps do not directly penetrate the spinous bones relatively.

The multi-segment spinal spinous process connecting device, wherein one end of the connecting member is provided with a flange stopping portion for abutting against the circumference of the long groove-shaped perforation, and the other end is provided with a pressing end, and the connecting members further comprise A plurality of fixing members are fixed to the pressing end and are moved toward the flange stopping portion, that is, the pressing force presses the fixing segments to tightly fix the spinous processes.

The multi-segment spine process, wherein the middle members are each a saddle member having a bottom plate connecting two upright plates, the bottom plate and the upright plates joining to create an accommodation space, and the uprights The plate is provided with the through hole transversely, and the side plates are provided with a plurality of protruding ribs or a plurality of concave grooves are cut.

The multi-segment spinal spinous process connecting device, wherein the fixed segment thickness of the side panels is thicker than other sections, so that the side panels can be thinned by non-fixed segments, and under pressure is generated when the force is deformed. The side panels are more closely fixed to the spinous processes of the spine, and the side panels are provided with a plurality of straight, lateral or oblique convex ribs or concave grooves to increase the stability and stability.

The multi-segment spinal spinous process connecting device, wherein the bottom of the middle member can be set to a similar pointed shape for facilitating implantation into the spinous processes of the vertebral bodies.

The multi-segment spinal spinous process connecting device, wherein the pressing end of the connecting member is a threaded segment, and each of the fixing members is a nut that can be screwed to the threaded portion of the pressing end of the connecting member.

The multi-segment spine process, wherein the fixing member is further provided with a locking hole, and a locking screw is used to lock the fixing member against the connecting member.

The multi-segment spine process, which refers to the upper, lower, anterior and posterior, refers to the posture of the patient undergoing surgery on the operating table, relative to the autologous spine, up and down Or to the difference between the head and the foot of the patient, the normal visual direction is the front, and vice versa. The top and bottom are the designated parts, and the upward or downward poles of each relative average are indicated by the figures and symbols.

In order to further illustrate the present invention, the preferred embodiments are described with reference to the drawings as follows: FIG. 1a, FIG. 1b and FIG. 1c are a multi-segment spinal spinous process connecting device 10 of the present invention, which are installed on a plurality of vertebrae The spinous process 21 of the body 20 is connected (refer to Fig. 2a), characterized in that it comprises two side pieces 30, 40, and the side pieces 30, 40 can connect three vertebral body spines 21 in a straight length. Or more than three, or one of the sides 31, 41 or the two ends 32, 42 of the side panels 30, 40 are located on the vertebral spinous processes 21, or between the spinous processes 21; in Figure 1b, the side panels 30 There are a plurality of fixed segments 33, which occupy at least 4/7 or 3/6 portions of the total length of the side panels 30, and two of them are located substantially on the left and right sides of the spinous processes 21 (refer to the figure). 2a), and between the fixed segments 33, a plurality of long trough-shaped perforations 34 slightly parallel to the long sides of the side panels 30 are provided, the long trough-shaped perforations 34 having a long side length substantially corresponding to an adult vertebra The distance between the body spinous processes 21 is equal, about 8-22 mm (mm), and is slightly located between the spinous processes 21; the thickness of the fixed segments 33 of the side panels 30 is higher than other paragraphs Thick, so that the side panels 30 can be made thinner by the non-fixed segments, and the amount of pressure is generated when the force is deformed, and the side panels 30 are more closely fixed to the spinous processes 21, and the sides are The sheet 30 is provided with a plurality of straight, lateral or oblique convex ribs 331 or a plurality of concave grooves 332 for increasing the stability of the fixing and preventing the side panels 30 from rotating.

In Fig. 1c, the one end 51 or the two ends 52 of the side panels 50 of the other type of the present invention are provided with the long groove-shaped perforations 53.

2a and 2b, the multi-segment spine process connection device 10 further includes a plurality of connecting members 60 and fixing members 61, respectively penetrating the long trough-shaped through holes 34, the side plates 30, 40 or so movable connection, and the side panels 30, 40 are relatively moved with the connecting members 60, so that the fixed segments 33 are aligned to the maximum extent of the vertebral body spinous processes 21, and the connecting members 60 and the fixing members 61. The side panels 30, 40 are forced to clamp the spinal spinous processes 21 .

One end of the connecting member 60 is provided with a flange stopping portion 601 for abutting against the circumference of the long groove-shaped through hole 34, and the other end is provided with a pressing end 602, and the fixing members 61 are fixed to the pressing end 602, and When the flange stop 601 is moved, that is, the force is applied to press the fixed segments 33 to tightly fix the spinous processes 21.

The tightening end 602 of the connecting member 60 is a threaded portion. Each of the fixing members 61 is a nut that can be screwed to the threaded portion of the engaging end 602. The fixing member 61 can further be provided with a locking hole 611 extending upwardly, and a locking screw 612 (shown in FIG. 1a) is fitted to lock the fixing member 61 against the connecting member 60.

In FIG. 2b, a plurality of blocking protrusions 431 are provided on the fixed segments 43 of the side panels 40 to contact or block the movement of the spiked protrusions 21, or to fix the spinous processes 21 by spines. The cusps of the protrusions 431 are prevented from being on the side panels on the left and right sides of the spinous processes 21, and the non-two pairs are opposite to each other in a straight line, and the blocking protrusions 431 on the side panels 40 of the same side are not the same length, so that the same When the side pieces are fixed by the left and right spines, the cusps of the protrusions 431 do not directly penetrate the bones of the spinous processes 21 relatively.

In Fig. 3a and Fig. 3b, one end 51 or two ends 52 of the other side panels 50 are provided with the long trough-shaped perforations 53, and a plurality of fixed segments 54 are also provided.

The side panels 50 are also combined with a plurality of connecting members 60 and fixing members 61, respectively penetrating the long groove-shaped perforations 53 laterally, and the side panels 50 are movably connected to the left and right sides, and the side panels 50 and the same The connecting members 60 are relatively moved to align the fixed segments 54 to the vertebral body spinous processes 21, and the connecting members 60 and the fixing members 61 are forced to clamp the vertebral body spines. Sudden 21.

4a, 4b and 4c, further comprising a plurality of central members 71, 72, 73, each of which is provided with a perforation 711, 721, 731.

And as shown in FIG. 1a, FIG. 2a, and FIG. 2b, the connecting members 60 respectively pass through the long groove-shaped through holes 34 of the side sheets 30, the middle piece through holes 711, and the long groove-shaped through holes 44 of the other side piece 40. The centering members 71 are movably placed at positions between the spinous processes 21, and the centering members 71 are naturally oscillated to conform to the positional angle between the spinous processes 21.

The central member 72 can be a saddle member having a bottom plate 722 coupled to the two upright plates 723. The bottom plate 722 and the upright plates 723 are coupled to each other to create an accommodating space for filling the artificial bone. The through hole 721 is transversely penetrated on the upright plate 723.

Or the bottom 732 of the centering member 73 can be set to a similar pointed shape for easy implantation between the vertebral body spinous processes 21.

In addition, in Fig. 5a and Fig. 5b, another multi-segment spinal spinous process connecting device 80 of the present invention is also installed between the spinous processes of the plurality of vertebrae 20; the invention is characterized in that The two side panels 50 used in the device 80, except for the long slotted perforations 53 and the plurality of fixed segments 54 provided, are one end 51 or two ends 52, and the long slotted perforations are required. And it is also required to include a plurality of intermediate members 73 provided with a perforation 731; the connecting members 60 respectively pass through the long groove-shaped perforations 53 of the side panels 50, the central member perforations 731, and the other side piece a long trough-shaped perforation 53 of 50, wherein the central member 73 is movably hung between the respective spinous processes 21, and the central member 73 is connected in series at the ends of the side panels 50. The link 60 moves to conform to the position and angle of the spinous processes 21 with the natural swing adjustment to form a non-fusion effect of the vertebral body 20.

10. . . Multi-segment spine process

20. . . Vertebral body

twenty one. . . Spinous process

30. . . Side piece

31. . . One end

32. . . Two ends

33. . . Fixed segment

34. . . Long trough perforation

331. . . Raised rib

332. . . Concave groove

40. . . Side piece

41. . . One end

42. . . Two ends

43. . . Fixed segment

44. . . Long trough perforation

431. . . Stop the protrusion

50. . . Side piece

51. . . One end

52. . . Two ends

53. . . Long trough perforation

54. . . Fixed segment

60. . . Link

601. . . Flange stop

602. . . Tight end

61. . . Fastener

611. . . Locking hole

612. . . Locking screw

71. . . Middle piece

711. . . perforation

72. . . Middle piece

721. . . perforation

722. . . Bottom plate

723. . . Upright board

73. . . Middle piece

731. . . perforation

732. . . bottom

80. . . Multi-segment spine process

Fig. 1a is a schematic view showing a preferred embodiment of a multi-segment spinous process device according to the present invention. (Figure 1a is a representative figure)

FIG. 1b and FIG. 1c are schematic diagrams showing the structure of two side pieces of the multi-segment spine process.

2a and 2b are schematic exploded view showing the position and structure of the multi-segment spinous process connection device and the vertebral body spinous process.

Fig. 3a and Fig. 3b are schematic exploded views showing the position and structure of the vertebral body spinous process installation of the other side piece of the multi-segment spine process.

4a, 4b, and 4c are schematic views showing a preferred embodiment of the multi-segment spine process.

FIG. 5a and FIG. 5b are schematic exploded views of another non-fusion effect multi-segment spinal spinous process connecting device according to the present invention.

10. . . Multi-segment spine process

30. . . Side piece

31. . . One end

32. . . Two ends

33. . . Fixed segment

34. . . Long trough perforation

40. . . Side piece

41. . . One end

42. . . Two ends

43. . . Fixed segment

44. . . Long trough perforation

60. . . Link

61. . . Fastener

612. . . Locking screw

71. . . Middle piece

Claims (5)

A multi-segment spinal spinous process connecting device is provided between a spinous process of a plurality of spinal vertebral bodies, comprising: two side pieces, each of which can be connected to three or more vertebral bodies The spinous processes are provided with a plurality of fixed segments on the side panels, such that a long slotted perforation is formed between the adjacent two fixed segments, and a plurality of blocking protrusions are provided on each of the fixed segments. Touching, obstructing the movement of each of the spinous processes held by the stab, or piercing the spinous processes, so that the sharp points of the blocking protrusions on the two side sheets are not opposite to each other in the same horizontal straight line, and are located in the same And the plurality of the connecting protrusions are not equal in length; and the plurality of connecting members respectively penetrate the corresponding long groove-shaped perforations of the two side sheets, so that the fixed segments of the two side sheets are respectively aligned and aligned Spinous process, and used to clamp the two sides of the blade to each side of the spinous process. The multi-segment spine process according to claim 1, wherein the connecting member is provided with a flange stop at one end for abutting against the circumference of the long groove-shaped perforation, and a pressing force at the other end. The connecting member further includes a plurality of fixing members fixed to the pressing end and moving toward the flange stopping portion, that is, pressing the fixed segments to tightly fix the spinous processes; The fastening end is a threaded section, and the fixing component is a nut that can be screwed to the threaded section of the pressing end of the connecting component, and the fixing component is further provided with a radial locking hole. Used to fit a locking screw to lock the fixing member to the connection The tight end of the knot. The multi-segment spine process according to claim 1, further comprising a plurality of middle members, each of the middle members being provided with a perforation, wherein the connecting members are sequentially passed through The long groove-shaped perforation of one side piece, the perforation of the middle piece, and the long groove-shaped perforation of the other side piece enable the middle piece to be movably hung between two adjacent spinous processes, so that the middle piece The natural swing adjusts to match the angle between the two adjacent spinous processes. The multi-segment spine process according to claim 3, wherein the middle members are each a saddle member having a bottom plate and two upright plates extending radially on opposite sides of the bottom plate. Between the bottom plate and the upright plates, an accommodating space is formed, and the upright plates are transversely disposed through the through holes. The multi-segment spinous process according to claim 1, wherein the side panels are provided with a plurality of raised ribs perpendicular to the direction of the spine or a plurality of concave grooves.