CN211213487U - Fixed guide plate for genioplasty operation - Google Patents
Fixed guide plate for genioplasty operation Download PDFInfo
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- CN211213487U CN211213487U CN201922001738.0U CN201922001738U CN211213487U CN 211213487 U CN211213487 U CN 211213487U CN 201922001738 U CN201922001738 U CN 201922001738U CN 211213487 U CN211213487 U CN 211213487U
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Abstract
The utility model relates to the field of medical equipment, especially relate to a fixed baffle of genioplasty operation. The utility model provides a fixed baffle of genioplasty operation is including the baffle body that is used for laminating mandible surface, baffle laminating portion includes first baffle laminating piece, second baffle laminating piece and a plurality of connecting piece, first baffle laminating piece extends along cutting bone section extending direction, and the extending distance is 4 ~ 8mm, second baffle laminating piece extends along cutting bone section extending direction, and the extending distance is 5 ~ 9mm, connect through a plurality of connecting pieces between the cutting bone section side of first baffle laminating piece and the cutting bone section side of second baffle laminating piece, be equipped with a plurality of locating holes on the baffle laminating piece. The utility model provides a cut bone baffle for chin shaping operation realizes fixing of diaphysis relative distance and position through binding face and a plurality of locating hole, and it can take one's place based on bone tissue surface characteristic, and the location is accurate in the art, and fixed position is only, and is minimum with the design deviation.
Description
Technical Field
The utility model relates to the field of medical equipment, in particular to a fixed guide plate for genioplasty and a construction method thereof.
Background
The chin shaping operation is to change the shape of the chin of a patient by changing the original size and position of the chin bone block, correct the chin deformity of the patient and improve the lower part beauty of the patient. In the traditional operation, an operator needs to determine the position of an osteotomy line by virtue of own clinical experience in the operation so as to avoid damaging the lower alveolar nerve and the mental nerve and complete the osteotomy. Too deep bone cutting at one time often exists in the operation, which causes additional injury and massive bleeding to patients; or the bone cutting amount is not enough, and the adjustment and grinding are required to be repeated for many times, thereby increasing the operation time and the bleeding during the operation. The cut bone pieces are then held by hand and moved to the desired spatial position by intraoperative measurement and evaluation. Thus, for complex genioplasty surgery, it is often difficult to perform accurate osteotomy and bone block positioning during surgery, and it is also difficult to control the rotation of the genial bone block.
Previous patents relating to genioplasty are directed to guide placement based on a single location of the patient's dentition, the surgeon taking an impression of the mandibular model from the preoperative patient, replacing the dentition in the original patient CT with the dentition model, and determining the patient's guide placement based on the particularities of the dentition. This is difficult for preoperative patients due to restricted or painful openings. And because the tooth support type guide plate is formed by 3D printing of resin, the thickness and the width of the guide plate are larger due to the limitation of material properties, more tissues need to be cut and separated, and the operation time is artificially prolonged.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned shortcomings of the prior art, it is an object of the present invention to provide a chin shaping surgery fixing guide plate and a method for constructing the same, which solve the problems of the prior art.
To achieve the above and other related objects, an aspect of the present invention provides a method for constructing a fixed guide model for genioplasty, including:
providing a three-dimensional model of a mandible, wherein the three-dimensional model of the mandible comprises a mandible body and a chin free part;
constructing a first guide plate fitting part based on the surface of the mandible body;
constructing a second guide plate fitting part based on the surface of the chin dissociating part;
constructing a connecting part which connects the first guide plate attaching part and the second guide plate attaching part;
and respectively constructing positioning holes on the first guide plate attaching part and the second guide plate attaching part.
The utility model discloses some embodiments, the concrete method of building first baffle laminating portion based on mandible body surface does: establish first baffle reference surface based on mandible body surface, establish first baffle laminating portion based on first baffle reference surface.
The utility model discloses in some embodiments, the concrete method of building second baffle laminating portion based on the mandible surface of osteotomy line chin side does: and constructing a second guide plate reference surface based on the surface of the chin part dissociation part, and constructing a second guide plate fitting part based on the second guide plate reference surface.
The utility model discloses in some embodiments, first baffle laminating portion is located between osteotomy section and the alveolar arch, and is located between two lower jaw holes on the coronal axis direction, and is preferred, first baffle laminating portion is 4 ~ 8mm apart from the distance of osteotomy section, the width of first baffle laminating portion is 2.5 ~ 3.5 cm.
The utility model discloses in some embodiments, second baffle laminating portion is located between osteotomy section and the lower jaw lower edge, and is located between two lower jaw holes on the coronal axis direction, and is preferred, second baffle laminating portion is 5 ~ 9mm apart from the distance of osteotomy section, the width of second baffle laminating portion is 2.5 ~ 3.5 cm.
The utility model discloses in some embodiments, the thickness of first baffle laminating portion and/or second baffle laminating portion is 0.4 ~ 1 mm.
The utility model discloses some embodiments, be equipped with a plurality of connecting portions along cutting bone direction evenly distributed between first baffle laminating portion and the second baffle laminating portion.
The utility model discloses in some embodiments, first baffle laminating portion and/or second baffle laminating portion are worn to locate by the locating hole, be equipped with a plurality of locating holes in the first baffle laminating portion, be equipped with a plurality of locating holes in the second baffle laminating portion, it is preferred, be equipped with more than three locating hole in the first baffle laminating portion, be equipped with more than three locating hole in the second baffle laminating portion.
The utility model discloses in some embodiments, the aperture of locating hole is 1.5 ~ 2.5mm, locating hole evenly distributed is in first baffle laminating portion and/or second baffle laminating portion.
The utility model discloses another aspect provides a preparation method of fixed baffle of genioplasty, the method includes: constructing the obtained fixed guide plate model for the genioplasty operation according to the construction method of the fixed guide plate model for the genioplasty operation, and preparing the fixed guide plate for the genioplasty operation.
The utility model discloses another aspect provides a fixed baffle of chin shaping operation, by the fixed baffle model of chin shaping operation construction obtain, or by the preparation method preparation of the fixed baffle of chin shaping operation obtain.
Another aspect of the present invention provides a computer-readable storage medium having a computer program stored thereon, wherein the program, when executed by a processor, implements the steps of the method for constructing the fixed guide model for genioplasty, or the steps of the method for preparing the fixed guide for genioplasty.
The utility model discloses another aspect provides an equipment, include: the processor is used for executing the computer program stored by the memory so as to enable the steps of the construction method of the genioplasty fixed guide model or the steps of the preparation method of the genioplasty fixed guide.
Another aspect of the present invention provides an apparatus, the apparatus may include:
a three-dimensional model providing module for providing a three-dimensional model of the mandible, the three-dimensional model of the mandible comprising a osteotomy line;
the first guide plate fitting part constructing module is used for constructing a first guide plate fitting part based on the surface of the mandible body;
the second guide plate fitting part constructing module is used for constructing a second guide plate fitting part based on the surface of the chin dissociating part;
the connecting part constructing module is used for constructing a connecting part which is connected with the first guide plate attaching part and the second guide plate attaching part;
the positioning hole construction module is used for respectively constructing positioning holes on the first guide plate attaching part and the second guide plate attaching part;
optionally, the method further includes: and the guide plate preparation module is used for preparing the chin shaping operation fixing guide plate according to the constructed chin shaping operation fixing guide plate model.
The utility model discloses another aspect provides a fixed baffle of chin shaping operation, including the baffle body that is used for laminating mandible surface, the baffle body includes first baffle laminating piece, second baffle laminating piece and a plurality of connecting piece, and first baffle laminating piece extends along cutting bone section extending direction, and extending distance is 4 ~ 8mm, and second baffle laminating piece extends along cutting bone section extending direction, and extending distance is 5 ~ 9mm, connect through a plurality of connecting pieces between the cutting bone section side of first baffle laminating piece and the cutting bone section side of second baffle laminating piece, be equipped with a plurality of locating holes on first baffle laminating piece and the second baffle laminating piece respectively.
In some embodiments of the present invention, the first guide abutment member corresponds to a position between the osteotomy section and the alveolar arch, and corresponds to a position between the two mandibular holes in the coronal axis direction.
In some embodiments of the present invention, the second guide plate engaging member corresponds to a position between the osteotomy section and the lower mandibular border, and corresponds to a position between the two mandibular holes in the coronal axis direction.
The utility model discloses in some embodiments, the thickness of first baffle laminating piece and/or second baffle laminating piece is 0.4 ~ 1mm, connect through three above connecting piece between the osteotomy section side of first baffle laminating piece and the osteotomy section side of second baffle laminating piece, the width of connecting piece is 1 ~ 4 mm.
In some embodiments of the present invention, one or more bending portions are disposed on the connecting member.
In some embodiments of the present invention, the positioning hole is disposed through the first guide plate attaching member and/or the second guide plate attaching member 12.
The utility model discloses in some embodiments, be equipped with three above locating hole on the first baffle laminating piece, be equipped with three above locating hole on the second baffle laminating piece.
The utility model discloses in some embodiments, the aperture of locating hole is 1.5 ~ 2.5mm, locating hole evenly distributed is in first baffle rigging and/or second baffle rigging.
Drawings
Fig. 1 shows the structure of the present invention.
Fig. 2 shows a schematic diagram of the model building of the present invention.
Fig. 3 shows a schematic diagram of the model building of the present invention.
Fig. 4 shows a schematic diagram of the model building of the present invention.
Fig. 5 shows a schematic diagram of the model building of the present invention.
Description of the element reference numerals
1 guide plate body
11 first guide plate fitting part
12 second guide plate fitting part
13 connecting piece
2 locating hole
Detailed Description
The utility model discloses the inventor provides a new fixed baffle of genioplasty and found method through a large amount of exploratory studies, the fixed baffle of genioplasty can effectively avoid cutting the bone many times in the art, and has effectively realized the nail way and has shifted to can reduce operation time and bleeding problem, accomplish on this basis the utility model discloses a fixed baffle of genioplasty is provided.
The utility model discloses a first aspect provides a chin shaping operation fixed guide model's method of construction, include:
s1) providing a three-dimensional model of the mandible, the three-dimensional model of the mandible including a osteotomy line including a mandible body and a chin free portion;
s2) constructing a first guide plate attaching part based on the mandible body surface;
s3) constructing a second guide plate attaching part based on the surface of the chin free part;
s4) constructing a connecting portion connecting the first guide plate attaching portion and the second guide plate attaching portion;
s5) forming positioning holes in the first guide attaching part and the second guide attaching part, respectively.
The utility model provides a chin shaping operation fixed guide model's construction method can include: a three-dimensional model of the mandible is provided, which comprises a mandible body and a chin free part. The three-dimensional model of the mandible may typically include various regions of the mandible, for example, at least the areas of the mandible lift, body, etc. The three-dimensional model of the mandible can be obtained by introducing CT data into software, and specifically can be software such as Simplan, proplan, and Mimics. The three-dimensional model of the mandible can comprise a mandible body and a chin free part, a part of the mandible close to the chin is generally cut off to form the chin free part, and a cut bone section can generally extend from one side of the lower jaw margin to the other side. In the software model, a person skilled in the art can select the cutting position of the chin free portion as required and adjust the chin free portion to a proper position, for example, as shown in fig. 2 and 3, a cutting line is usually used as the basis for cutting in the chin shaping surgery, and the cutting line is usually extended from the chin to two side rear edges, stops at the lower edge of the mandible corresponding to 7 roots of the mandible (i.e. 7 teeth of the mandible), and is usually lower than the chin hole by 5mm, so that the mandible located at the chin side portion of the cutting line can be separated into the chin free portion through the cutting line, and the chin free portion is moved so that the chin free portion can be located at a desired position, for example, the chin free portion can be moved forward, retreated, rotated by a certain angle, and the like, thereby changing the shape of the chin of the patient to achieve the desired chin shape.
The utility model provides a chin shaping operation fixed guide model's construction method can include: construct first baffle laminating portion based on mandible body surface, mandible body surface is the mandible surface of former osteotomy line alveolar arch side promptly. The first guide plate attaching portion is generally located on the surface of the mandible and between the osteotomy section and the alveolar arch, so that the area of the mandible can be effectively attached. The first guide plate attaching portion may be generally located above the osteotomy section and in the middle of the mandible surface, for example, the first guide plate attaching portion may be located between two mandible holes in the coronal axis direction, i.e., a projection on the coronal axis, the first guide plate attaching portion is located between two mandible holes, and for further example, the first guide plate attaching portion may be located at a distance of 4 to 8mm, 4 to 5mm, 5 to 6mm, 6 to 7mm, or 7 to 8mm from the osteotomy section (i.e., a distance from a lower edge of the first guide plate attaching portion to the osteotomy section), and the first guide plate attaching portion may have a width of 2.5 to 3.5cm, 2.5 to 2.8cm, 2.8 to 3.2cm, or 3.2 to 3.5cm (i.e., a distance extending from the osteotomy section to the alveolar arch direction). In a preferred embodiment of the present invention, the specific method for constructing the first guide plate attaching portion based on the surface of the mandible body may be: establish first baffle reference surface based on mandible body surface, establish first baffle laminating portion based on first baffle reference surface. The first guide plate reference plane is generally fitted to the mandible surface, the first guide plate reference plane may be generally located above the osteotomy section and in the middle of the mandible surface, for example, the first guide plate reference plane may be located between two mandible holes in the coronal axis direction, i.e., a projection on the coronal axis, the first guide plate reference plane is located between two mandible holes, further for example, the first guide plate reference plane may be located at a distance of 4 to 8mm, 4 to 5mm, 5 to 6mm, 6 to 7mm, or 7 to 8mm from the osteotomy section (i.e., a distance of a lower edge of the first guide plate reference plane from the osteotomy section), and the first guide plate reference plane may have a width of 2.5 to 3.5cm, 2.5 to 2.8cm, 2.8 to 3.2cm, or 3.2 to 3.5cm (i.e., a distance extending from the osteotomy section to the alveolar arch direction). Extending the first guide reference surface to the outside (i.e. the opposite direction with respect to the direction facing the mandible surface) for a certain distance may be constructed to obtain a first guide abutment. The distance of extension generally corresponds to the thickness of the first guide plate attachment portion, for example, the distance of extension and the thickness of the first guide plate attachment portion may extend by 0.4-1 mm, 0.4-0.6 mm, 0.6-0.8 mm, or 0.8-1 mm.
The utility model provides a chin shaping operation fixed guide model's construction method can include: and constructing a second guide plate fitting part based on the surface of the chin part free part, wherein the surface of the chin part free part is the surface of the mandible on the chin side of the original osteotomy line. The second guide plate engaging portion may be generally along the chin free portion surface and between the osteotomy section and the lower mandibular border so as to effectively engage the mandible surface in that area. The second guide plate attaching portion may be generally located below the osteotomy section and at a position opposite to the middle portion, for example, the second guide plate attaching portion may be located between two mandibular holes in a coronal axis direction, i.e., a projection on the coronal axis, and located between two mandibular holes, and further for example, the second guide plate attaching portion may be located at a distance of 5 to 9mm, 5 to 6mm, 6 to 7mm, 7 to 8mm, or 8 to 9mm from the osteotomy section (i.e., a distance from an upper edge of the second guide plate attaching portion to the osteotomy section), and the second guide plate attaching portion may have a width of 2.5 to 3.5cm, 2.5 to 2.8cm, 2.8 to 3.2cm, or 3.2 to 3.5cm (i.e., a distance extending from the osteotomy section to a lower edge of the mandible). In a preferred embodiment of the present invention, the specific method for constructing the second guide plate attaching portion based on the surface of the chin portion dissociation portion may be: and constructing a second guide plate reference surface based on the surface of the chin part dissociation part, and constructing a second guide plate fitting part based on the second guide plate reference surface. The second guide plate reference surface generally fits the chin free portion surface, the second guide plate reference surface may be generally below the osteotomy section and at a position opposite to the middle, e.g., the second guide plate reference surface may be located between two mandibular holes in the coronal axis direction, i.e., a projection on the coronal axis, the second guide plate reference surface is located between two mandibular holes, and further e.g., the second guide plate reference surface is located at a distance of 5 to 9mm, 5 to 6mm, 6 to 7mm, 7 to 8mm, or 8 to 9mm from the osteotomy section (i.e., a distance of an upper edge of the second guide plate reference surface from the osteotomy section), and the second guide plate reference surface has a width of 2.5 to 3.5cm, 2.5 to 2.8cm, 2.8 to 3.2cm, or 3.2 to 3.5cm (i.e., a distance extending from the osteotomy section toward a lower edge of the mandibular guide plate). Extending the second guide reference surface to the outside (i.e. the opposite direction with respect to the direction facing the mandible surface) for a certain distance may be constructed to obtain a second guide abutment. The distance of extension generally corresponds to the thickness of the second guide plate attachment portion, for example, the distance of extension and the thickness of the second guide plate attachment portion may be 0.4-1 mm, 0.4-0.6 mm, 0.6-0.8 mm, or 0.8-1 mm.
The utility model provides a chin shaping operation fixed guide model's construction method can include: constructing a connecting part which connects the first guide plate attaching part and the second guide plate attaching part. The connecting part is usually used for keeping the relative position relation between the first guide plate attaching part and the second guide plate attaching part, and the first guide plate attaching part and the second guide plate attaching part are respectively used for attaching the mandible body and the chin free part, and the chin free part has displacement relative to the original position, so the connecting part usually extends along the surface of the bone body between the first guide plate attaching part and the second guide plate attaching part, thereby avoiding unnecessary bulge and influencing the postoperative effect. Be equipped with a plurality of connecting portions between first baffle laminating portion and the second baffle laminating portion, and can follow osteotomy direction (corresponding with the extending direction of osteotomy line usually), when realizing two parts stable connections, can reduce connecting portion size as far as possible, when promoting the operation precision, also promote the postoperative healing. For example, at least three or more connecting parts can be included, the connecting parts can linearly extend along the surface of the bone body between the first guide plate attaching part and the second guide plate attaching part, and the width of the connecting parts (namely, the size of the connecting parts extending along the osteotomy direction) can be 2-4 mm, 2-2.5 mm, 2.5-3 mm, 3-3.5 mm and 3.5-4 mm.
The utility model provides a chin shaping operation fixed guide model's construction method can include: and respectively constructing positioning holes on the first guide plate attaching part and the second guide plate attaching part. The locating hole can wear to locate first baffle laminating portion and second baffle laminating portion (promptly, the locating hole can extend to the baffle outside from mandible surface) to can be when cutting the bone, can be fixed in the mandible surface (as shown in fig. 2) of its corresponding position with first baffle laminating portion and second baffle laminating portion through the setting element with locating hole matched with. In a preferred embodiment of the present invention, the positioning member may be a titanium nail, and the positioning hole may be screw-fitted to the positioning member. The utility model discloses in another preferred embodiment, can be equipped with a plurality of locating holes in first baffle laminating portion, for example, can be equipped with three above locating hole, the locating hole can evenly distributed in first baffle laminating portion, and the aperture of locating hole can be 1.5 ~ 2.5mm, 1.5 ~ 1.8mm, 1.8 ~ 2.2mm, 2.2 ~ 2.5mm in first baffle laminating portion, and the quantity of locating hole can be more than 3 usually in first baffle laminating portion. The utility model discloses in another preferred embodiment, can be equipped with a plurality of locating holes in second baffle laminating portion, for example, can be equipped with three above locating hole, the locating hole can evenly distributed in second baffle laminating portion, and the aperture of locating hole can be 1.5 ~ 2.5mm, 1.5 ~ 1.8mm, 1.8 ~ 2.2mm, 2.2 ~ 2.5mm in second baffle laminating portion, and the quantity of locating hole can be more than 3 usually in second baffle laminating portion.
The second aspect of the present invention provides a method for preparing a fixed guide plate for genioplasty, the method comprising: according to the utility model discloses the fixed baffle model of genioplasty operation that the construction method of the fixed baffle model of genioplasty operation that the first aspect provided constructs the acquisition prepares the fixed baffle of genioplasty operation. The method for obtaining the chin shaping surgical fixing guide plate according to the model preparation is known to those skilled in the art, and for example, 3D printing and the like can be adopted, and the used material mainly can be titanium, titanium metal alloy and the like.
The third aspect of the utility model provides a fixed baffle of genioplasty, by the utility model discloses the construction method of the fixed baffle model of genioplasty that the first aspect provides constructs and obtains, or by the utility model discloses the preparation method preparation of the fixed baffle of genioplasty that the second aspect provides obtains.
The utility model provides a chin takes shape fixed guide of operation, as shown in figure 1, including the baffle body 1 that is used for laminating mandible surface, baffle body 1 includes first baffle laminating piece 11, second baffle laminating piece 12 and a plurality of connecting piece 13, and first baffle laminating piece 11 extends, and the extending distance is 4 ~ 8mm, 4 ~ 5mm, 5 ~ 6mm, 6 ~ 7mm or 7 ~ 8mm along cutting bone section extending direction, and extending distance is 5 ~ 9mm, 5 ~ 6mm, 6 ~ 7mm, 7 ~ 8mm or 8 ~ 9mm along cutting bone section extending direction, second baffle laminating piece 12 is connected through a plurality of connecting pieces 13 between the cutting bone section side of first baffle laminating piece 11 and the cutting bone section side of second baffle laminating piece 12, be equipped with a plurality of 2 locating holes on first baffle laminating piece 11 and the second baffle laminating piece 12 respectively. The utility model provides a chin shaping operation fixed guide, its baffle body can laminate with the mandible surface mutually, first baffle laminating piece 11 can extend along the mandible body surface usually, mainly lies in between cutting bone section and the alveolar arch to can effectively paste the mandible surface in this region, second baffle laminating piece 12 can extend along chin dissociative surface usually, mainly lies in between cutting bone section and the lower jaw lower edge, thereby can effectively paste the mandible surface in this region, thereby can cooperate the locating hole to fix baffle laminating piece stably in the mandible surface, connecting portion 2 can be used for connecting two laminating portions, thereby can make keep predetermined position between chin dissociative portion and the mandible body, play the effect of accurate positioning in the art, provide only fixed position, prevent to appear drifting between position and the predetermined position, reduces the design deviation and can guide more complicated genioplasty operations.
The utility model provides an among the fixed baffle of chin shaping operation, the region that first baffle laminating piece 11 was laminated is located the mandible surface usually, and is located between section of cutting the bone and the alveolar arch, first baffle laminating piece 11 can be the plate body usually, and it can be usually along cutting the extending direction of bone section and extend, and lie in between two mandibular holes on the coronal axis direction, for example, the regional distance of laminating of first baffle laminating piece 11 (being the distance of first baffle laminating piece 11 lower edge distance section of cutting the bone section) can be for being less than or equal to 1mm, the width of first baffle laminating piece 11 (i.e. from the section of cutting the bone section to the alveolar arch direction extension distance) can be 2.5 ~ 3.5cm, 2.5 ~ 2.8cm, 2.8 ~ 3.2cm, or 3.2 ~ 3.5 cm. The region where the first guide abutment member 11 abuts may be generally located above the osteotomy section and in the middle of the mandible surface, which may more stably fix the osteotomy site. The first guide engaging member 11 generally has a certain thickness, so as to ensure that the first guide engaging member 11 has a certain strength, for example, the thickness of the first guide engaging member 11 may be 0.4-1 mm, 0.4-0.6 mm, 0.6-0.8 mm, or 0.8-1 mm.
The utility model provides an among the fixed baffle of chin shaping operation, the region that second baffle laminating 12 laminated is located the mandible surface usually, and is located between section of cutting the bone and the lower jaw lower edge, first baffle laminating 11 can be the plate body usually, and it can be usually followed and cut the sectional extending direction of bone and extend, and lie in between two lower jaw holes on the coronal axis direction, for example, the regional distance of laminating of second baffle laminating 12 (be the second baffle laminating 12 on the reason the distance of cutting the bone section can be for being less than or equal to 1 mm), the width of second baffle laminating 12 (i.e. from the section of cutting the bone to the sectional distance of cutting the bone of lower jaw lower edge direction extension) can be 2.5 ~ 3.5cm, 2.5 ~ 2.8cm, 2.8 ~ 3.2cm, or 3.2 ~ 3.5 cm. The area where the second guide abutment member 12 abuts may be generally located below the osteotomy section and in the middle of the chin free portion surface to more stably secure the osteotomy site. The second guide abutting member 12 generally has a certain thickness, so that the second guide abutting member 12 can have a certain strength, for example, the thickness of the second guide abutting member 12 may be 0.4 to 1mm, 0.4 to 0.6mm, 0.6 to 0.8mm, or 0.8 to 1 mm.
The utility model provides an in the fixed baffle of chin shaping operation, still include connecting piece 13, connecting piece 13 is used for connecting first baffle laminating piece 11, second baffle laminating piece 12 usually, and each connecting piece 13 is connected and is connected with the osteotomy section side of first baffle laminating piece 11 and the osteotomy section side of second baffle laminating piece 12 respectively usually to realize the fixed of relative position between two laminating pieces on the whole. The connecting member 13 generally extends along the surface of the shaft between the first guide abutting member 11 and the second guide abutting member 12, so as to avoid unnecessary protrusion and influence on the post-operation effect, and since the first guide abutting member 11 and the second guide abutting member 12 are respectively located in the middle of the surfaces of the mandible body and the chin free portion, the connecting member 13 generally has a bending portion, for example, as shown in fig. 4 and 5, more than two bending portions may be provided on the connecting member 13, so as to form an overall Z-shape. A plurality of connecting pieces 13 can be arranged between the first guide plate fitting piece 11 and the second guide plate fitting piece 12 and can be uniformly distributed along the osteotomy direction (generally corresponding to the extension direction of the osteotomy line), so that the size of the connecting pieces can be reduced as much as possible while the stable connection of the two parts is realized, and the postoperative healing is promoted while the operation precision is improved. For example, at least three or more connecting members 13 may be included, the connecting members may linearly extend along the surface of the shaft between the first guide abutment member 11 and the second guide abutment member 12, and the width of each connecting member 13 (i.e., the dimension of the connecting member 13 extending in the osteotomy direction) may be 1 to 4mm, 1 to 2mm, 2 to 3mm, or 3 to 4 mm.
The utility model provides an among the fixed baffle of chin shaping operation, first baffle laminating 11 and second baffle laminating 12 (promptly, the locating hole can extend to the baffle outside from the laminating of laminating) can be worn to locate by locating hole 2, and when cutting bone after-fixing two parts diaphysis position, can be fixed in the mandible surface (as shown in fig. 2) of its corresponding position with first baffle laminating 11 and second baffle laminating 12 through the setting element with locating hole matched with. In a preferred embodiment of the present invention, the positioning member may be a titanium nail, and the positioning hole may be screw-fitted to the positioning member. The utility model discloses in another preferred embodiment, can be equipped with a plurality of locating holes 2 on the first baffle laminating piece 11, for example, can be equipped with three above locating hole 2, locating hole 2 can evenly distributed in first baffle laminating piece 11, and the aperture of locating hole 2 can be 1.5 ~ 2.5cm, 1.5 ~ 1.8cm, 1.8 ~ 2.2cm or 2.2 ~ 2.5cm on the first baffle laminating piece 11. The utility model discloses in another preferred embodiment, can be equipped with a plurality of locating holes 2 on the second baffle laminating piece 12, for example, can be equipped with three above locating hole 2, locating hole 2 can evenly distributed in second baffle laminating piece 12, and the aperture of locating hole 2 can be for 1.5 ~ 2.5cm, 1.5 ~ 1.8cm, 1.8 ~ 2.2cm, or 2.2 ~ 2.5cm on the second baffle laminating piece 12.
The fourth aspect of the present invention provides a computer-readable storage medium having a computer program stored thereon, wherein the program is executed by a processor to implement the steps of the method for constructing the fixed guide plate model for genioplasty, or the method for preparing the fixed guide plate for genioplasty, provided by the second aspect of the present invention.
The utility model discloses a fifth aspect provides an equipment, include: the device comprises a processor and a memory, wherein the memory is used for storing a computer program, and the processor is used for executing the computer program stored in the memory, so that the device executes the steps of the construction method of the chin shaping surgery fixed guide plate model provided by the first aspect of the invention or the steps of the preparation method of the chin shaping surgery fixed guide plate provided by the second aspect of the invention.
A sixth aspect of the present invention provides an apparatus, the apparatus may comprise:
a three-dimensional model providing module for providing a three-dimensional model of the mandible, the three-dimensional model of the mandible comprising a osteotomy line;
the first guide plate fitting part constructing module is used for constructing a first guide plate fitting part based on the surface of the mandible body;
the second guide plate fitting part constructing module is used for constructing a second guide plate fitting part based on the surface of the chin dissociating part;
the connecting part constructing module is used for constructing a connecting part which is connected with the first guide plate attaching part and the second guide plate attaching part;
the positioning hole construction module is used for respectively constructing positioning holes on the first guide plate attaching part and the second guide plate attaching part;
optionally, the method further includes: and the guide plate preparation module is used for preparing the chin shaping operation fixing guide plate according to the constructed chin shaping operation fixing guide plate model.
The utility model discloses in, the theory of operation of each module in above-mentioned device can refer to as above the chin shaping operation fixed guide model construct the method and/or the chin shaping operation fixed guide's preparation method, do not do here and describe in detail.
The utility model provides a cut bone baffle for chin shaping operation realizes the fixed of diaphysis relative distance and position through binding face and a plurality of locating hole, it can take one's place based on bone tissue surface characteristic, the location is accurate in the art, fixed position is only, it is minimum with the design deviation, thereby it is more accurate to make the operation, repeated measurement and the aassessment in having avoided the art, cut the bone many times, and the unnecessary damage that leads to the fact to the patient, effectively reduce the scheduling problem that bleeds in operation time and the art, can guide complicated chin shaping operation, good industrialization prospect has.
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.
Example 1
1) Firstly, importing patient DICOM data into Simplan 11.04 software for threshold segmentation and reconstruction, wherein the segmentation threshold is selected as follows: 300 to 2976. Then, carrying out three-dimensional scheme design of genioplasty on the CT, determining the position of an osteotomy line, and cutting off the bone according to the position of the osteotomy line, so that the mandible model is integrally divided into a mandible body and a chin free part, as shown in fig. 2 and 3.
2) The STL data of the mandible body and the free part after the chin shaping movement (including forward movement, backward movement, narrowing, size, rotation, etc.) of the above steps are respectively imported into the geomagic studio 2013 software.
3) The surfaces applied by the operation are copied, the related surfaces are respectively within 6mm above the osteotomy line of the free bone block and the mandible body and are used as reference surfaces for constructing the guide plate, the guide plate is further stretched to form a guide plate prototype, and the specific thickness of the guide plate prototype is 0.7 mm.
4) According to the osteotomy line, on the basis of the first part guide plate and the second part guide plate rudiment which are constructed before, a connecting part is constructed, the connecting part is used for connecting the first part guide plate and the second part guide plate and is composed of 3 parts, and the width of the connecting part is 3 mm.
5) Trimming the guide plate profile to complete the positioning guide plate, as shown in fig. 4 and 5.
6) The above-described metal printing entity of the guide plate (3D printing was entrusted to beijing barton, and printing was performed by using Mlab sizing 200R titanium and titanium alloy printers).
Because the uniqueness and the optional thickness of 3D printing metal titanium board, consequently, to the great chin shaping of displacement, the cooperation 3D prints metal and cuts bone baffle and use together, can be better quick location, cut bone and fix to can practice thrift operation time, improve operation efficiency.
To sum up, the utility model discloses various shortcomings in the prior art have effectively been overcome and high industry value has.
The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (9)
1. The utility model provides a fixed baffle of chin shaping operation, its characterized in that, including baffle body (1) that is used for laminating mandible surface, baffle body (1) includes first baffle laminating piece (11), second baffle laminating piece (12) and a plurality of connecting piece (13), and first baffle laminating piece (11) extend along cutting bone section extending direction, and the extending distance is 4 ~ 8mm, and second baffle laminating piece (12) extend along cutting bone section extending direction, and the extending distance is 5 ~ 9mm, connect through a plurality of connecting pieces (13) between the cutting bone section side of first baffle laminating piece (11) and the cutting bone section side of second baffle laminating piece (12), be equipped with a plurality of locating holes (2) on first baffle laminating piece (11) and second baffle laminating piece (12) respectively.
2. A chin shaping surgical fixation guide according to claim 1, characterized in that the first guide abutment member (11) corresponds between the osteotomy section and the alveolar arch and between the two mandibular openings in the coronal axis direction.
3. A chin shaping surgical fixation guide according to claim 1, characterized in that the second guide abutment (12) corresponds between the osteotomy section and the lower mandibular border and between the two mandibular openings in the coronal axis direction.
4. A chin shaping surgical fixation guide according to claim 1, characterized in that the thickness of the first guide abutment member (11) and/or the second guide abutment member (12) is 0.4 to 1mm, and the first guide abutment member (11) and the second guide abutment member (12) are connected by three or more connecting members (13) having a width of 1 to 4 mm.
5. A chin shaping surgical fixation guide according to claim 1, characterized in that the connecting piece (13) is provided with one or more folds.
6. A chin shaping surgical fixation guide according to claim 1, characterized in that the positioning hole (2) is provided through the first guide abutment member (11) and/or the second guide abutment member (12).
7. A chin shaping surgical fixation guide according to claim 1, characterized in that the first guide abutment member (11) is provided with more than three positioning holes (2) and the second guide abutment member is provided with more than three positioning holes (2).
8. The genioplasty fixation guide plate according to claim 1, wherein the diameter of the positioning hole (2) is 1.5-2.5 mm.
9. Chin shaping surgical fixation guide according to claim 1, characterized in that the positioning holes are evenly distributed over the first guide abutment member (11) and/or the second guide abutment member (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922001738.0U CN211213487U (en) | 2019-11-19 | 2019-11-19 | Fixed guide plate for genioplasty operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922001738.0U CN211213487U (en) | 2019-11-19 | 2019-11-19 | Fixed guide plate for genioplasty operation |
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| Publication Number | Publication Date |
|---|---|
| CN211213487U true CN211213487U (en) | 2020-08-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922001738.0U Active CN211213487U (en) | 2019-11-19 | 2019-11-19 | Fixed guide plate for genioplasty operation |
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| Country | Link |
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| CN (1) | CN211213487U (en) |
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