CN219147766U - 3D prints mandibular bone cuts bone conduction board - Google Patents

Abstract

The utility model discloses a 3D printing mandible osteotomy guide plate, which comprises an osteotomy guide plate body, wherein two osteotomy guide plate bodies are fixedly connected through a connecting arc plate, a transversely extending limit groove is formed in the side face of the osteotomy guide plate body, the limit groove is consistent with the position of an osteotomy line, an adjusting plate is movably clamped on the side face of the osteotomy guide plate body, and the adjusting plate is provided with an osteotomy groove. This kind of 3D prints lower jaw and cuts bone conduction board body and connection arc board through carrying out three-dimensional rebuilding and adopting 3D printing technique integrated into one piece to patient's jaw position, guarantees the laminating degree with patient's jaw, utilizes connection arc board to cut bone conduction board body links together of both sides, improves the stability and the symmetry of block, but reciprocates the regulating plate, realizes cutting the fine setting of bone line.

Description

3D prints mandibular bone cuts bone conduction board

Technical Field

The utility model relates to the technical field of surgical auxiliary appliances, in particular to a 3D printing mandibular osteotomy guide plate.

Background

Orthognathic surgery is to improve facial appearance and occlusion function by changing original shapes, positions and angles of bones, in orthognathic surgery, a doctor is required to position a jawbone, then cut off a jawbone (angle) to finish the surgery, in the surgery process, the operation is generally required to be performed by using a surgical guide plate, but a general guide plate is not attached to a jawbone of a patient to cause inaccurate positioning, so that an integrated jawbone guide plate for 3D printing appears in the prior art, CT data of focus parts of the patient are subjected to three-dimensional reconstruction, a jawbone model is printed through a 3D printing technology, the attachment degree of the jawbone model with the jawbone of the patient is ensured, for example, an utility model with application number of CN202221439002.7 is disclosed, a 3D printing is used for manufacturing the jawbone guide plate, a 3D printing design is used for adapting to mounting clamping grooves on two sides of the jawbone, and a mask is integrally fixed by using connection between clamping grooves. Through fixed mounting limiting plate on the installation draw-in groove, utilize the limiting plate to confirm accurate osteotomy line, prevent that the operator from cutting the deviation of bone volume because the mistake of experience is lost or operation brings in the art, but the operation usually needs to cut the bone to the jawbone of both sides, and there is not connecting device between the osteotomy baffle of both sides, be independent baffle, independent baffle and the block of one side jawbone are not stable enough, shift or deviation about the interception in-process easily produces, and the position deviation that the both sides were placed easily cuts the bone and be asymmetric owing to the both sides cuts the bone, and in the operation in-process or before the operation, the state of an illness probably changes along with the time, when the position of osteotomy line needs to be adjusted, need to cut the bone baffle to carry out redesign and print to whole jawbone, comparatively waste cost. For this purpose, we propose a 3D printed mandibular osteotomy guide.

Disclosure of Invention

The utility model aims to provide a 3D printing mandibular osteotomy guide plate, which solves the problems in the background art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a 3D prints mandible and cuts bone conduction board, includes cuts bone conduction board body, it is provided with two to cut bone conduction board body, two cut through connection arc board fixed connection between the bone conduction board body, the radian of connection arc board agrees with the positive radian of human jaw, be provided with the fixed orifices on cutting bone conduction board body, it is provided with the spacing groove of lateral extension to cut bone conduction board body side, the position of spacing groove and osteotomy line coincide unanimously, the width of spacing groove is greater than the thickness of blade, it has the regulating plate to cut bone conduction board body side activity joint, be provided with on the regulating plate and cut the bone groove, it coincides with the profile trend of spacing groove to cut bone groove, it is unanimous with the sword groove thickness to cut the width of bone groove.

Preferably, the connecting arc plate comprises a connecting frame and honeycomb holes, two sides of the connecting frame are fixedly connected with the side faces of the osteotomy guide plate bodies on two sides respectively, and the honeycomb holes are formed in the connecting frame.

Preferably, the bone cutting guide plate body is provided with a sliding groove, the adjusting plate is provided with a sliding block, the sliding block is movably clamped in the sliding groove, and a fixing piece is arranged between the sliding block and the sliding groove.

Preferably, three fixing holes are arranged, and the three fixing holes are arranged in a triangular distribution mode.

Compared with the prior art, the utility model has the beneficial effects that: this kind of 3D prints lower jawbone and cuts bone guide body and connection arc board through carrying out three-dimensional rebuilding and adopting 3D printing technique integrated into one piece to patient's jawbone position, guarantee the laminating degree with patient's jawbone, and the position of spacing groove matches with the position of cutting the bone line, it cuts bone precision to improve, increase the operation success rate, reduce the operation risk, utilize connection arc board to link together the bone guide body of both sides, laminate on the jawbone together with the bone guide body of both sides in the operation process, make the bone guide of both sides fixed simultaneously, improve the stability of block, reduce the probability that the baffle produced the displacement in the intercepting process, improve the symmetry of operation, when cutting bone guide body preparation is accomplished, when need adjusting the position of cutting the bone line, can reciprocate the regulating plate, adjust the degree of coincidence between spacing groove and the bone cutting bone line, and then realize cutting the fine setting of bone line, need not to reprint and cut bone guide body, reduce cost once more.

Drawings

FIG. 1 is a schematic perspective view of an osteotomy guide body of the present utility model;

FIG. 2 is a top view of the present utility model;

FIG. 3 is a front view of a connecting arc plate of the present utility model;

FIG. 4 is a front view of the osteotomy guide body of the present utility model.

In the figure: osteotomy guide body 1, connection arc board 2, connection frame 21, honeycomb hole 22, spacing groove 3, regulating plate 4, spout 5, slider 6, mounting 7, osteotomy groove 8, fixed orifices 9.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, the present utility model provides a technical solution: the utility model provides a 3D prints mandible and cuts bone conduction board, including cutting bone conduction board body 1, it is provided with two to cut bone conduction board body 1, connect through connecting arc board 2 between two and cut bone conduction board body 1, connect arc board 2's radian and human jaw front radian fit, through the CT data three-dimensional reconstruction to patient's jaw position after, carry out accurate measurement to jaw size, design the operation scheme that is fit for patient according to measured data, and simulate in the art, after confirming, utilize 3D printing technology to print patient's jaw profile, namely two cut bone conduction board bodies 1 and connect arc board 2, wherein cut bone conduction board body 1 and both sides's jaw profile laminating, connect arc board 2 to the position laminating of aligning the jaw, consequently, can cut bone conduction board body 1 and connect arc board 2 joint simultaneously in patient's jaw position department of cutting bone conduction board body 1 on the one side, can fix and control, reduce the probability that cuts bone conduction board body 1 displacement, improve stability on the other hand, can improve the symmetry of cutting bone conduction board body 1, improve the operation accuracy of cutting bone;

the connecting arc plate 2 comprises a connecting frame 21 and honeycomb holes 22, wherein two sides of the connecting frame 21 are respectively and fixedly connected with the side surfaces of the osteotomy guide plate body 1 on two sides, the honeycomb holes 22 are formed in the connecting frame 21, two side edges of the connecting arc plate 2 can be fixedly connected with the side surfaces of the osteotomy guide plate body 1, the honeycomb holes 22 are positioned in the connecting frame 21, the honeycomb holes 22 are uniformly arranged, the strength and the rigidity of the connecting arc plate 2 can be ensured, the honeycomb holes 22 are regular hexagonal honeycombs, the specific size of the honeycomb holes 22 is set according to the size of the connecting arc plate 2, and the regular hexagonal honeycomb holes 22 between each two adjacent rows are arranged in a staggered manner;

the fixing holes 9 are formed in the osteotomy guide plate body 1, three fixing holes 9 are formed in the triangular distribution mode, in the operation, guide needles can be used for being inserted into the fixing holes 9 and fixed, limiting of the positions of the osteotomy guide plate body 1 is achieved, the probability of displacement of the osteotomy guide plate body 1 in the operation is reduced, on one hand, the fixing strength is improved due to the fact that the three fixing holes 9 are formed, on the other hand, the track of a surgical knife is avoided, the osteotomy guide plate body 1 can be firmly fixed to the mandible body, and therefore osteotomy guide plate can accurately conduct osteotomy and bone block positioning in the operation;

the lateral surface of the osteotomy guide plate body 1 is provided with a transversely extending limit groove 3, the limit groove 3 is consistent with the position of an osteotomy line, the width of the limit groove 3 is larger than the thickness of the blade, the position of the limit groove 3 is the position of the osteotomy line, and the width of the limit groove 3 is larger than the thickness of the blade, so that the blade can conveniently operate in the internal limit groove 3, and on the other hand, the limit groove 3 can be conveniently adjusted when the position of the osteotomy line is changed;

the side surface of the osteotomy guide plate body 1 is movably clamped with an adjusting plate 4, the adjusting plate 4 is provided with an osteotomy groove 8, the profile trend of the osteotomy groove 8 is consistent with that of the limiting groove 3, the width of the osteotomy groove 8 is consistent with the thickness of the cutter groove, when the position of an osteotomy line is changed, the adjusting plate 4 can be slid up and down, the overlapping position of the osteotomy groove 8 and the limiting groove 3 is adjusted, fine adjustment of the osteotomy position is realized, and after the adjustment is finished, the blade can sequentially penetrate through the osteotomy groove 8 and the limiting groove 3 to perform osteotomy operation on the jaw bone position of a patient;

be provided with spout 5 on cutting bone baffle body 1, be provided with slider 6 on the regulating plate 4, slider 6 movable joint is in spout 5, is provided with mounting 7 between slider 6 and the spout 5, utilizes the cooperation of spout 5 and slider 6, can lead and spacing the removal of regulating plate 4, can fix the position of regulating plate 4 through mounting 7, and mounting 7 can be bolt and nut cooperation piece, can also be other mountings, does not do specifically limit.

When the three-dimensional CT device is used, after the CT data of the jaw position of a patient are reconstructed in a three-dimensional mode, the jaw size is accurately measured, an operation scheme suitable for the patient is designed according to the measured data, in-operation simulation is performed, after no errors are confirmed, the jaw contours of the patient are printed by utilizing a 3D printing technology, namely, two osteotomy guide bodies 1 and connecting arc plates 2, wherein the osteotomy guide bodies 1 are attached to the jaw contours of two sides, the connecting arc plates 2 are attached to the positions of the positive jaws, therefore, the osteotomy guide bodies 1 and the connecting arc plates 2 on two sides are clamped at the jaw position of the patient at the same time, on one hand, the position of the osteotomy guide bodies 1 can be fixed and held down, the probability of displacement of the osteotomy guide bodies 1 is reduced, the stability is improved, on the other hand, the symmetry of the osteotomy operations on two sides can be improved, the operation precision is improved, the position of a limiting groove 3 is the position of an osteotomy line, when the position of the blade is changed, the inside the limiting groove 3, the blade can slide the adjusting plate 4 up and down, the adjusting groove 8 and the position of the limiting groove 3 coincide with the position of the limiting groove 3, and the osteotomy position of the blade 8 can be adjusted in sequence, and the position of the osteotomy can be adjusted after the osteotomy position of the blade is adjusted by the position of the osteotomy blade 3 is adjusted in order.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (4)

1. The utility model provides a 3D prints mandibular bone cuts bone conduction board, includes cuts bone conduction board body (1), its characterized in that: the utility model discloses a bone cutting device, including bone cutting guide body (1), connecting arc board (2) radian and human jaw openly radian agree with, be provided with fixed orifices (9) on bone cutting guide body (1), bone cutting guide body (1) side is provided with transversely extending spacing groove (3), the position of spacing groove (3) and bone cutting line coincide unanimously, the width of spacing groove (3) is greater than the thickness of blade, bone cutting guide body (1) side activity joint has regulating plate (4), be provided with bone cutting groove (8) on regulating plate (4), the contour trend of bone cutting groove (8) and spacing groove (3) coincide unanimously, the width of bone cutting groove (8) is unanimous with the sword groove thickness.

2. A 3D printed mandibular osteotomy guide in accordance with claim 1, wherein: the connecting arc plate (2) comprises a connecting frame (21) and honeycomb holes (22), two sides of the connecting frame (21) are fixedly connected with the side faces of the bone cutting guide plate body (1) at two sides respectively, and the honeycomb holes (22) are formed in the connecting frame (21).

3. A 3D printed mandibular osteotomy guide in accordance with claim 1, wherein: the bone cutting guide plate comprises a bone cutting guide plate body (1), and is characterized in that a sliding groove (5) is formed in the bone cutting guide plate body (1), a sliding block (6) is arranged on the adjusting plate (4), the sliding block (6) is movably clamped in the sliding groove (5), and a fixing piece (7) is arranged between the sliding block (6) and the sliding groove (5).

4. A 3D printed mandibular osteotomy guide in accordance with claim 1, wherein: the fixing holes (9) are arranged in a triangular distribution mode, and the three fixing holes (9) are arranged in a triangular distribution mode.

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