HU227419B1

HU227419B1 - Stabilizing implement suitable for treating fractures of the radius

Info

Publication number: HU227419B1
Application number: HU0401433A
Authority: HU
Inventors: Gyoergy Dr Seress
Original assignee: Gyoergy Dr Seress
Priority date: 2004-07-16
Filing date: 2004-07-16
Publication date: 2011-05-30
Also published as: HUP0401433A2; HU0401433D0

Abstract

The implant has plates with fixed screws for providing high stability and spring. The screws may be inserted from any direction and fixed on the plate. The free insertion of the screw is provided with special countersinking from both sides of the plate. The screws are fixed using pseudo-threading solution forming flange in the middle of the hole. The stability of the screw with variable cone angle is enhanced by seizing the threads of the head with pseudo-threads.

Description

(57) Extract

The present invention is a fastening fixture comprising a special plate and screws fixedly fixed to the plate head, which is suitable for treating the fracture end of the spindle bone. It is an object of the present invention to provide the plate (7) with a tab (11) bent over the edge of the bone, resulting in greater spatial stability. In the step (9) of the plate (7), the screws with variable tapered threaded head (2) fall into place while the threaded shoulder (3) rests on the rim (8) of the plate and, in tensioning with each other, fixes the screw on its head while the other end of the screw is fixed. fixed in the bone. The screws can be folded and locked up to 40 degrees from the perpendicular, allowing the device to adapt to surgical situations, to the needs of the operating physician.

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FIELD OF THE INVENTION The present invention relates to an assembly comprising a special T-shaped plate and a fixed screw in the plate, which is suitable for treating the fracture of the end of the spinal bone.

The field of application of the invention is all those. situations are where - eg. when screwing the nipple fracture ~ the screw head must be fastened in the plate.

The end of the spindle can be secured, inter alia, by a T plate and screws. The fastening of the plate-screw connection to the head-end is mainly done by a threaded solution. The plate is defined in the direction, with a threaded hole, in which the screw head thread is fixed in a predetermined direction, such a solution is described in US2 / 060004361A1. the fixation to the plate is provided by a fixed screw that is driven into the pre-formed thread, and there are no specific requirements for positioning the screw. can be considered.

Fig. L is a side and top view of the points of rotation in the fracture segment and the joint of the nasal cavity at the fracture. Close to the wrist joint in the literature. In the case of Collos' fractures, the bones are the palm of your hand! On its surface or near the singleton, there is an axis of rotation, i.e. a compact area winning the pivot function, and it comes to the back of the hand and comes to the outer edge of the spindle. created as a result of which the rotation axis 02 is formed on the side of the singconf.

In a dynamic environment, the typical displacement of the fracture is caused by {Fig. 2] that the torque created by the torsional muscles will be greater than the torque generated by the smaller force of Flex Muscle 04, i.e. Fjxki> Fpkk. respectively. the tension of the flexing and tensioning muscles relative to the bone axis changes. If the replacement is missed, or if a secondary displacement occurs after the replacement, the healing of the fracture is far from anatomical. Dynamic Environment Affected by Fractures in a Defective Situation, ie Fixed Deformations, Tang XB., Rya X, Ömokawa Ha »X» Kfeh V.: ZlmweAumcaf cvo / aofion motor tem & w pffer / rmxmrn? o / 'rke rodhnx <Z / femr / Sarg / MA 24Á .//./-.// A p. analyzed in his article. In order to prevent the broken end-to-end movement, the use of the ears recommended by Prof. U. Lanz, with fixed screws, was made by Martin (wAfeöWÓfeÖlkdgmm), however, there was no analysis of the mechanics of the injuries we carried out and of which φφφ

Some of the operational sequences resulting from X Φ * were also extracted. The essence of the surgery is that, in the case of fess injury, with the typical displacement triggering torque, a torsionally applied impulse groove is applied on the side of the fact, in addition to the fixing of the fracture, an opposite torque. For spatial stabilization, it is advisable to tin. ear training on the disc according to Prof. U. Lanz

Tissue fractures have recently been treated with tin. it is made with an angle stable plate, many forms of which are known in the foreign (ITS httpmwwdtsdmpbnt.oorn, Handinternational. ^ MJl ^ dinnowtíonsxgm, AÖ www, ao-asif, gh,) and in the Hungarian (wwv.sanatmetal.hu) literature. A common feature of these is that the head portion of the disc head is threaded with screws (or threadless sitites) that fix the broken piece when the wrist is damaged, and thereby create a fis connection between the plate and the screws (stiffs). As a result, you build your inner bone union substantially, more steadily .fixally than your predecessor did when the head of the screw in the hole of the plate fitted in a conventional manner, and the stability of the bone union was entrusted to the threaded part of the insecure quality injured bone.

The disadvantage of the currently used angle-stable plates is that

- (with one exception) they only lie on the surface of the spindle, in the absence of lateral support, their spatial stabilizing effect is inadequate

- The screws are usually guided at a predetermined fixed angle in the plate, so that they are unable to adapt to the surgical situation. There is a plate with variable angled screws (LT.S), but its deviation from the perpendicular is small, up to 20 °.

- no tension is applied, so the effect on the unfavorable torque is only due to the disk rlgldifa, the disc has no "active" spring function.

The object of the present invention is to overcome these deficiencies and to produce a more stable, resilient, resilient sheet of bone, with which to create a resting position and a steady state in a changed dynamic environment. We have discovered that this can be achieved with a structure that produces opposite torque, force, and counter-directional torque acting against unfavorable rotational torques and axial loads in the fracture, as I can create a resting position in the fracture by creating a torque.

After correcting the spindle bone injury, a dynamic torque change in three dimensions of the space can be observed, which can be characterized by a higher torque torque on the side of the wrist tensioner and spindle (Figure 3), and which has an opposite rotational torque created by the device of the invention. prevented:

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To this end, a bend at the original ten-degree bend of the plate is applied so that the head portion is 3 ~ 4 mm away from the bone, so it is tensioned during the fastening, the bending position in the new position forms the axis of rotation 07, functioning as the stub of the plate 08 in the head. by placing screws in place, the broken spindle bone performs a rotational torque in 99 directions

A general solution to the problem is the fixing assembly according to claim L, the preferred embodiments of which are shown in FIGS. Claims 1 to 3.

It is an object of the present invention to provide a known T-shaped plate that provides support from the side of the fracture, as well as a cylindrical flange in the middle of the plate cross-section, a punching step by milling the plate holes from both sides, the screw stem thread, the conical head, threaded and smaller, the threaded shoulder portion has a larger cone angle. The conical head is pushed into the phantom while the threaded shoulder of the screw head engages in the hole of the plate. on the rim of the plate, so that the pendulum tensioned against the rim of the plate and the bolt is fixed in the plate.

An embodiment of an embodiment of the present invention is illustrated by means of drawings, in which it is.

Figure 1 shows the axis of rotation of the spindle bone fracture, a

Figure 2 illustrates the forces and torques that occur here, a

Figure 3 shows the force and torque conditions generated by the invention, a

Figure 4 is a side view of the screw, i

Figure 5 is a side view of the screw! sectional view, a

Fig. 6 shows the screw in the beam

Figure 7 is a plan view of the plate, a

Figure 8 is a side view of the plate! engraving, depicts a

Figure 9 shows a screw that is folded straight into the plate, a

Figure 10 shows a screw slanted into the disk, <RTIgt;

Figure 12 shows a side view of the plate, a

Fig. 13 is a perspective view of an assembly partially provided with screws, a

Figures 14 and 15 show the position of the disk fixed to the spindle from different views

The embodiment described is only one example of a plurality of possible embodiments, the scope of the claims as defined herein is, of course, not limited to the embodiment shown,

Fig. 4 is a side view of the screw, which is part of the assembly, having a stem, a head 2, and a shoulder part 3, and a screw of 4 smaller cranks, 3 shoulder portions on the head portion.

In Fig. 5, a side view is shown showing the screw, which is at 2 heads and respectively. For 3 accusations, the 6 longitudinal polygonal countersinking screws are provided for the screwdriver or bnbus key.

His. Figure 5 shows a top view of the screw stem indicating the position of the polygon profile 6 for receiving the shaft, head 2, shoulder 3, and screwdriver or hexagon key.

Figure 7 shows a portion of the disc with a hole 10 formed therein; the hole 10 has a rim 8, the transition 9 being located within the rim 8

AS is a sectional view of a portion of the plate 7; the hole 10 is provided with concave, curved recesses on both sides, the recesses form the flanges 9 on both sides of the plate, and the recess of the recesses, the transition 9, which is an edge extending around the center of the web.

As shown in Figure 9, if the screw is folded straight into the hole 10, the pin 9 will be threaded by the thread on the head 2, or when the screw 4 is smaller, it will reach the depth that can be folded into the hole. The process of lei is belemar of 9 teimenefhe. In the case of the inclined recess in Figure 10, the thread on the shoulder 3 of the screw, formed with the larger cone angle 5, is activated and threadedly connected to the dummy 9 or belemar. Due to the lowering of the hole in the hole, the widest part of the shoulder 3 is fluttered to the wall of the recess and to the S edge. so you can choose the "skew * very angular" of the screw.

The 11, -12 ,. Figure 1 shows an embodiment of the special wrist fastening plate 7; The length of the .12 stem is determined by the number of holes 10. from my bar to eight holes. The length of the head 13 extending to the stem 12 is also determined by the number of holes 10 in three and four-hole versions. Plane 1.1 Angle Plate Layout Right and Left Fit Layout, Listening 11 Tabs on Spindle φ X * Φ Φ * »

ΧΧΦ * X Φ Φ Φ * ΧΧ ν * Φ φ * φ φ * * * φφφ Φ Φ φφ * * * * * Anatomical shape of the XX strain. one of the holes 10 in the longitudinal direction of the shaft 1.2 is elongated, i.e. the straight sections in the longitudinal direction are connected by continuous curved sections, which allows positioning of the folded screw or plate 7 along the longitudinal axis.

Figure 13 is a special wrist fastener? Plate and screws are shown in working condition, in space. The straight and oblique screwing of the screws can be seen, the narrower conical end of the threaded head 2 has already passed through the plane of the plate 7 and the 9-1. 3, the threaded shoulder 3 protrudes on the rim 8. Figure 12 shows a portion of the shaft 12 and the transverse head 13, the portion of the Ll at an angle to the plane of the plate, the portion 12, the holes 10 formed, the 9th aperture, and the edge 8.

Fig. 14 is a top view of the fastening assembly according to the invention fitted to the spindle bone 14. You can see its position relative to the 14 spindle bones. The stem 12 and the head section 13 lie on the wider surface of the spindle bone 1.4, while the 11-side side is supported, the threaded shoulder 3 of the screws is also seen from above.

Fig. 12 is a side elevational view of a plate 7 placed on the bones 14 and a palm of the palm of the hand, with the stem 1.2 and the head portion 13, the side 11 of the bone supporting the bone, and the threaded shoulder 3 of the screw 13 in the head 13.

In the dissolution according to the invention, the plate 7 lies not only in one plane but in two planes and creates a lateral support. It allows the screw to be folded and fixed in the plate 7 not only perpendicularly but in all directions up to 40 degrees, and can be fixed, creating a stable plate screw connection. When perpendicular to the fold, the conical head 2 clicks in circular direction 9, while the threaded. It also rests circularly on its 8 rims. When the screw is bent forward, the tension 9 of the plate 7 and the plate 7 are tensioned as a spring. 8, so that the screw is fixed to the head portion of the plate 7. Slanted folds make a three-point fixafio, because the threaded screw head 2 clings to the opposite edges of the slope 9, and the threaded shoulder 3 on the flange 8 of the hole 10 on the side corresponding to the inclination. and flange of plate 10. The advantage of the solution is that the screw can be guided and fixed on the plate 7 with great freedom, up to 40 degrees from the perpendicular, and the fixation of the 2 esavariej in the plate 7, which can be very useful for a single operation. This technical solution is likely to be useful not only in the field of medicine, but also in the field of mechanics.

In summary, the advantage of a fastening assembly comprising a special plate and screws for treating the spinal bone fracture according to the present invention is that a more stable fracture fixation can be achieved by adjusting the screws up to 40 degrees from the perpendicular in an optimal position, depending on the surgical pulse.

A fastening assembly for treating spindle fracture comprising a special plate and screws T-shaped, characterized in that the longitudinal stem (12) of the plate (7) and its shorter head (13) connected to it in the T-shape are provided with a plate and a plate (12). ?) a post-spindle post (11) connected to the shape of the spindle joint; holes (10) are formed both in the stem (12) and in the head (12), and the holes (10) pass through a hole (9); the screws are. the stem (1), to which a smaller cone-shaped (4) head (2) is attached, the head (2) has a larger cone-angle ()) shoulder (3), and all a. stem (1), both head (2) and shoulder (3) are threaded.

Assembly according to claim 1, characterized in that the tab (11) is connected to the end of the head (13).

An assembly according to claim 1 or 2, characterized in that the tip is in the holes (10) with a curved surface from below and from above. engraved and pseudo. (9) an edge defined by. the intersection of two curved surfaces starting from the lower and upper edges of the hole (10).

4. The first to the third. An assembly according to any one of claims 1 to 4, characterized in that the special plate (?) and the material of the screw do not suffer from medical problems. or titanium.

5. The L-4. An assembly according to any one of the preceding claims, characterized in that the number of holes (10) on the stem (12) of the plate (7) is three to three, and the stem (12) has a corresponding length.

An assembly according to any one of claims 1 to 5, characterized in that one or more of the holes (10) on the stem (12) of the plate (7) is elongated or oval along the longitudinal axis of the shaft (12) and is elongated. form. or the longitudinal axis of the oval coincides or parallel to the longitudinal axis of the stem (12).

Assembly according to one of claims 1 to 10, characterized in that a. the number of holes in the transverse head portion (13) of the plate (7) is three or four and the head portion (13) has a corresponding length,

8. Referring to Figures 1-7 An assembly according to any one of claims 1 to 3, characterized in that the position of the tab (.11) can be left and right,

9. An assembly according to any one of claims 1 to 3, characterized in that the sleeve (2) and the shoulder (3) have a thinner thread with a lower pitch than the stem fi).

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