TWI578951B - A window plate device which is fixed after rotation - Google Patents

Description

Window bone plate device with fixed flat angle after rotation

The invention relates to a window bone plate device with a fixed flat angle after rotation, in particular to a bone plate member, a plurality of pressing members, and a plurality of bone nails, characterized in that the curved groove of the pressure plate is surrounded and pressed. The four sides of the convex portion of the square are contacted, so that the pressing member of the pressing member is held at the top of the bone nail and the fixed angle of the window bone plate device is fixed.

Known human spine disorders, except for injuries caused by fractures, a considerable proportion of the disc is caused by lesions or aging of the intervertebral disc, causing the intervertebral space to shrink, the intervertebral joints and the nerves between the joints (intervertebral The pores are also relatively narrow, and are compressed to the nerve roots of the spinal cord, causing paralysis or pain. Or because of the bone loss caused by degeneration of the elderly, the small plate of the spine is hollowed out, causing the vertebral fracture to collapse.

At present, the treatment methods generally for the above problems are mostly on two to three vertebrae adjacent to the lesion, to implant a Pedicle screw, a Hook, and a connecting rod. (rod) After the connection, the surgical treatment of each diseased vertebrae is fixed to open the adjacent vertebrae space or vertebral body of the lesion to relieve pain and paralysis.

Or implanting a spine window window plate, and inserting the bone plate into the bone plate with multiple bone nails, and nailing into the upper and lower adjacent vertebra body segments, so that the fixed bone plate can be fixed and stabilized. The upper and lower adjacent vertebrae to relieve the pain of the patient's spinal nerves The problem of pain.

However, the traditional spinal window bone plate fixation surgery, the use of the vertebral plate and bone nails, is easy because the patient has other spinal problems, such as osteoporosis (osteoporosis), or because of the relative movement and movement of the spine after surgery Or because of the design problem of the window bone plate itself, the screw screwed into the position of the vertebral body will be caused by osteoporosis, lack of complete skeletal tissue support, and lack of fixation ability of the window bone plate, plus The placed vertebral body pulls the stress, so that the screw is very easy to loosen out of the originally implanted vertebral body position.

Therefore, in order to solve the above problems, the key is how to make the bone nail after the inserted vertebral body has a fixing ability, and the bone nail is firmly fixed to the vertebral body by a special auxiliary fixing design on the window bone plate. Position, and enable the bone nail and the vertebral body to grow rapidly, without affecting other undegenerate or diseased vertebrae, maintaining the stress or bending state of the original spine, and maintaining the stability of all aspects of the patient, thus inventing A new "window fixed angle fixed window bone plate device" to improve the aforementioned problems.

Therefore, the simple solution to the above problem is that the bone plate member is provided with a bone nail perforation and can be inserted into a bone screw to be fixed to a vertebra joint. The perforations are concavely milled with a square protrusion, and a middle portion is provided with a a plurality of pressing members; a plurality of pressing members having a through shaft penetrating the shaft through hole, and a pressing plate pressing the pressing plate to press the top of the bone nail; and a plurality of bone nails penetrating the nail nailing hole, wherein the nail portion is fixed to the nail In the spine; characterized in that: under the pressing member of the pressing member, an arc-shaped groove is milled and inserted into the periphery of the convex portion of the square, and the arc-shaped groove is curved to surround and tightly contact when the pressing member rotates The rotating and flat-angled fixed window bone plate device is fixed on the four sides of the square pressing plate so that the two sides of the pressing member are held on the top of the left and right bone nails.

It is therefore an object of the present invention to provide a window bone plate device that is fixed at a flat angle after rotation.

Another object of the present invention is to provide a device comprising a bone plate member, a plurality of pressing members, and a plurality of bone nails, the pressing member pressing plate arcuate grooves surrounding and pressingly contacting the bone plate member protrusions The straight sides of the four sides allow the pressing members to be held on the top of the nail by a rotating, flat angle fixed window bone plate device.

Still another object of the present invention is to provide a square convex periphery of a bone plate member of the device, another milling circular groove for receiving the pressure plate, and a radius of the four corners of the bone plate member, and the pressure plate The two side ends are tapered plates, which are matched with the top of the bone nails, and a tool hole is arranged on the pressure plate, so that a tool shaft can be rotated to rotate the flat angle fixed window bone plate device.

Therefore, a rotating bone angle fixed window bone plate device of the present invention comprises: a bone plate member having a plurality of bone nail perforations, each of which can be inserted into a bone screw and fixed to a vertebra joint, and the bone nail perforations Each of the concave milling has a square protrusion, and the square protrusion is provided with a shaft through hole; a plurality of pressing members each have a through shaft for penetrating into the square protruding shaft through hole, and the through shaft is laterally connected to a pressing plate, Pressing the top of the bone nail; and a plurality of bone nails can be inserted into the bone plate perforation of the bone plate member, wherein a nail portion can be fixed in the spine joint; and the pressing member is in the same direction as the through shaft Below the pressure plate, an arc-shaped groove is uniformly milled, and when the through-shaft penetrates the perforation of the shaft, the arc-shaped groove under the platen fits into the block convex Starting from the circumference, the curvature of the curved groove just surrounds and tightly contacts the straight sides of the square protrusions when the pressing member rotates axially, so that the two side ends of the pressing member are fixedly held on the left and right bones thereof. On the top of the nail.

The rotating window-fixed window bone plate device, wherein the bone plate member is concavely milled on the periphery of the square, and the other is a concave groove, which can accommodate the pressing member pressing plate and can make the pressing member The circular groove rotates in the axis.

The rotating window-fixed window bone plate device has a rounded corner of the square protrusion of the bone plate member.

The rotating rear-angled fixed window bone plate device, wherein the two side ends of the pressing member pressing plate are flat plates which are tapered from the two axial end portions of the wearing portion, so that the two side ends can fit the top of the nail.

The rotating flat-angle fixed window bone plate device, wherein the pressing member pressing plate is recessed with a tool hole, and a tool can be inserted to rotate the pressing member.

The window bone plate device fixed after the rotation of the flat angle, above and below the specification or the scope of the patent application, refers to the center of the object to be marked, according to the common sense or the top of the figure is up and up, the relative direction Then it is down and down. Or according to the anatomical spine of the figure, the direction of the head and the foot of the patient is distinguished as "up, down, up or down."

Left and right are the direction of the visual, or the object is centered, defined on the left or right.

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. If there is any ambiguity about the position, direction, or orientation of each object, please indicate the reference aid with graphic illustration and label. Description.

10‧‧‧Window bone plate device fixed after rotation

20‧‧‧ bone plate

21‧‧‧Bone nail perforation

22‧‧‧square bumps

23‧‧‧Axis perforation

24‧‧‧4 straight sides

25‧‧‧round slot

26‧‧‧ rounded corners

30‧‧‧ bone nails

31‧‧‧ bone nail top

32‧‧‧Bone nails

40‧‧‧Curling parts

41‧‧‧through shaft

42‧‧‧ pressure plate

43‧‧‧Arc groove

44‧‧‧Two side

45‧‧‧Tool hole

50‧‧‧Spine Festival

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is an exploded perspective view showing a preferred embodiment of a rotating bone angle fixed window bone plate device of the present invention. (Figure 1 is a representative figure)

Fig. 2 is a schematic view showing the bone plate of the device combined with a multi-bone nail and pressed and fixed by a plurality of pressing members.

Fig. 3 is a schematic view showing a preferred embodiment of the device in which the relative position is predicted to be fixed to the multi-segmental vertebrae.

Fig. 4 is a schematic view showing a preferred embodiment of the shape of the pressing member of the device and the relative position of the top of the nail.

In order to further illustrate the present invention, the embodiments are described below with reference to the accompanying drawings in order to understand the related technical aspects of the present invention. In FIG. 1 , a rotating bone angle fixed window bone plate device 10 of the present invention, The utility model comprises: a bone plate member 20, as shown in the figure, a plurality of bone nail perforations 21 are formed on the top surface thereof, and a bone nail 30 can be penetrated and screwed into a vertebra joint 50, Two adjacent second nail insertions 21 are formed by the top surface of the bone plate member 20, and a square protrusion 22 is downwardly recessed, and the square protrusion 22 is interposed and a shaft hole 23 is bored. The plurality of pressing members 40, as shown in the figure, are generally T-shaped in shape, and each has a through shaft 41 at the bottom thereof, and can be inserted into the through hole 23 of the square protrusion 22, so that the pressing member 40 can be rotated. The T-shaped portion of the threaded shaft 41 is laterally connected to a pressing plate 42 which is shaped to press a top portion 31 of the bone nail 30; and a plurality of bone nails 30 having a top portion 31 and a nail portion 32. 30 can penetrate the bone plate member 20 bone nail perforation 21, and the nail portion 32 can be fixed in the vertebra joint 50; and in the second, third, and fourth figures, the rotated rear angle fixed window The bone plate device 10, wherein the pressing members 40 are all milled with an arcuate groove 43 on the plate directly below the platen 42 in the same direction as the through-shaft 41.

When the pressing member 40 penetrates the shaft through hole 23 of the bone plate member 20, the arcuate groove 43 under the pressing plate 42 can just fit around the four sides of the square protrusion 22 of the bone plate member 20, and The curvature of the curved groove 43 is such that when the pressing member 40 performs the axial rotation, it surrounds and closely contacts the four straight sides 24 of the square protrusion 22 to form a curved pressing line, and because The pressing member 40 is axially fixed to the bone plate member 20 and does not come loose. Therefore, the pressing member 40 is relatively tightly contacted with the curved boundary of the bone plate member 20, and the square protrusion 22 is tightly pressed, so that the two side ends of the pressing member 40 of the pressing member 40 are fixedly held at the left and right ends thereof. The top 31 of the nail 30 is such that once the bone nail 30 is fixed to the spine joint 50, it is not moved back and released.

Further, a peripheral edge of the concavely-cured square protrusion 22 is formed on the top surface of the bone plate member 20, and a circular groove 25 is concavely milled in the plate body of the bone plate member 20 to accommodate the pressure plate 42 of the pressing member 40. The top surface of the pressure plate 42 is prevented from protruding beyond the top surface of the bone plate member 20, and the surface smoothness of the bone plate member 20 is maintained, and the pressing members 40 can still be disposed in the circular groove 25. Can be rotated.

In addition, and in conjunction with FIG. 4, the square protrusions 22 of the bone plate member 20, the four corners of the straight side turn, are designed as a rounded corner 26, and the rounded corners 26 cause the pressing of the pressing member 40. The plate 42 has a curvature of the arcuate groove 43 so that the top member 40 can slide through the four straight sides of the block protrusion 22 when the shaft is rotated, but the pressure can still be made after passing. The piece 40 is still tightly pressed against the bone plate member 20 to maintain a vertical or horizontal parallel state.

And the two side ends 44 of the pressing plate 40 are the flat plates which are tapered from the center of the threading shaft 41 toward the two side ends 44, so that the two side ends 44 can match the shape of the top 31 of the nail 30, and keep Pressed on the top 31.

And the pressing plate 42 of the pressing member 40 is recessed with a tool hole 45, and a tool can be inserted to rotate the pressing member 40.

10‧‧‧Window bone plate device fixed after rotation

20‧‧‧ bone plate

21‧‧‧Bone nail perforation

22‧‧‧square bumps

23‧‧‧Axis perforation

24‧‧‧4 straight sides

25‧‧‧round slot

26‧‧‧ rounded corners

30‧‧‧ bone nails

31‧‧‧ bone nail top

32‧‧‧Bone nails

40‧‧‧Curling parts

41‧‧‧through shaft

42‧‧‧ pressure plate

43‧‧‧Arc groove

Claims (5)

A rotating bone angle fixed window bone plate device comprises: a bone plate member, a plurality of bone nail perforations, each of which can be inserted into a bone nail and fixed to a vertebra joint, and each of the bone nail perforations has a concave milling a square protrusion, wherein the square protrusion is provided with a shaft through hole; the plurality of pressing members each have a shaft through hole through which the shaft can penetrate, and the through shaft is laterally connected to a pressure plate, and the pressing plate can be pressed Each of the tops of the bone nails; and a plurality of bone nails that can be inserted into the bone plate perforations of the bone plate member, wherein a nail portion can be fixed in the spine joint; wherein the pressing members are An arcuate groove is milled under the platen in the same direction, and the arcuate groove under the platen is sleeved into the periphery of the block protrusion when the through hole penetrates the hole of the plate, the arc groove The arc is just when the top members rotate axially, and surrounds and tightly contacts the straight sides of the square protrusions, so that the two side ends of the pressure plate members are fixedly held on the left and right sides of the nails. On the top. According to the scope of claim 1, the rotary slanted angle fixed window bone plate device, wherein the bone plate member is concavely milled on the convex periphery of the square, and the concave groove is a circular groove for accommodating the pressure top member. The pressing plate can rotate the pressing members in the circular groove. The rotator-back fixed-length window bone plate device according to the first aspect of the invention, wherein the four corners of the square protrusion of the bone plate member are rounded. The slanted angle fixed-width window bone plate device according to claim 1, wherein the two side ends of the pressure plate are tapered by the two ends of the axial direction, so that the two The side end just fits the top of the bone nail. According to the scope of the invention, the rotary slanted angle fixed window slab device, wherein the pressing plate of the pressing member is recessed with a tool hole, and a tool can be inserted to rotate the pressing members.