CN218606748U - Chin shaping cuts bone location baffle - Google Patents

Abstract

The utility model discloses a chin takes shape and cuts bone location baffle belongs to the medical instrument field, the location baffle includes the baffle body, the baffle body is equipped with two bone cutting line guiding grooves, the length and/or the width of bone cutting line guiding groove and bone cutting line and/or go the bone volume to match. The utility model discloses individualized customization chin shaping cuts bone location baffle according to different individual physiological structure and jaw chin malformation degree, quick, accurate cut the digital chin shaping operation scheme of bone with the chin bilayer and shift to the operation in to reach and carry out the accuracy to digital operation scheme and implement.

Description

Chin shaping cuts bone location baffle

Technical Field

The utility model relates to the technical field of medical equipment, especially a chin shaping cuts bone location baffle.

Background

The genioplasty is based on the mandibular chin muscle pedicle flap, is mainly used for treating serious mandibular chin deformity, and is the best operation for correcting various abnormal chin morphologies at present. After the osteotomy is completed, the chin bone block is moved to the required position and is fixed by the titanium plate.

Genioplasty includes various operations for correcting the abnormal three-dimensional abnormalities of the front and back, up and down, left and right of the chin, such as excessive development, dysplasia and deviation of the chin. Since the individual difference of the chin is large, even in the same type of deformity, the difference between patients is obvious, the best effect of the genioplasty is to achieve the coordination with each part of the craniofacial region, and therefore, the operation should be designed in combination with the individual face type. This creates problems of complicated chin shaping surgical protocols, large osteotomy position and bone block positioning errors. Meanwhile, because the lower alveolar nerve is bent downwards before passing out of the mental foramen, the actual position of the lower alveolar nerve is lower than that of the surface anatomical mark, and the lower alveolar nerve is easy to damage in the operation.

The utility model aims at providing a chin shaping cuts bone location baffle of bone is cut to accurate realization chin bilayer.

SUMMERY OF THE UTILITY MODEL

In view of the defects of the prior art, the invention aims to provide a chin shaping osteotomy positioning guide plate which can accurately realize double-layer chin osteotomy.

In order to achieve the above and other related objects, the present invention provides a chin shaping osteotomy positioning guide plate, which comprises a guide plate body, wherein the guide plate body is provided with two osteotomy line guide grooves, and the length and/or width of each osteotomy line guide groove is matched with an osteotomy line and/or bone removal amount.

In some embodiments of the present invention, the shape of the guide body matches the physiological structure of the chin of the mandible;

and/or the bone contact surface of the guide plate body is tightly attached to the chin of the mandible.

In some embodiments of the present invention, the positioning guide further comprises two osteotomy wings;

one side of the bone cutting wing plate is arranged on the guide plate body, the other side of the bone cutting wing plate protrudes out of the guide plate body, and the two bone cutting wing plates are respectively positioned at the outer edges of the two bone cutting line guide grooves.

In some embodiments of the present invention, the length of the osteotomy wing plate is greater than the length of the osteotomy line guide slot;

and/or the osteotomy wing plate is positioned at the outer edge of the lower side of the osteotomy line guide groove;

and/or the height of the osteotomy wing plate (2) protruding out of the guide plate body (1) is 1-3 mm;

and/or the included angle between the osteotomy wing plate and the guide plate body is 30-150 degrees;

and/or the osteotomy wing plate and the guide plate body are integrally formed.

The utility model discloses in some embodiments, baffle body includes first guide portion, second guide portion and third guide portion from top to bottom in proper order, is equipped with one between two adjacent guide portions cut bone line guiding groove.

In some embodiments of the present invention, the first guide portion, the second guide portion, and the third guide portion are each provided with 2 to 6 nail holes for fixing the fixed guide body.

In some embodiments of the present invention, the distance between adjacent nail holes on the guide portion is 2-6mm.

In some embodiments of the invention, the lower edge of the third guide portion wraps around the chin lower jaw lower edge.

In some embodiments of the present invention, the first guide portion, the second guide portion and the third guide portion are lateral guide plates, and the shape of the lateral guide plates matches with the physiological structure of the chin of the mandible.

In some embodiments of the present invention, the guide plate body has a thickness of 1 to 2mm; and/or the width of the guide plate body is 30-40mm; and/or the distance between the two osteotomy line guide grooves is 8-10mm; and/or the width of the osteotomy line guiding groove is 0.5-1.2mm; and/or the guide plate body is made of a resin material or a metal material.

The utility model provides a chin takes shape cuts bone location baffle possesses following beneficial effect:

the digital chin shaping operation scheme of the chin double-layer osteotomy is quickly and accurately transferred to operation, and the accuracy of bone block fixation is ensured through the universal nail hole position design, so that the digital operation scheme is accurately implemented.

Drawings

FIG. 1 is a schematic structural view of a main viewing angle of the chin shaping osteotomy positioning guide of the present invention;

fig. 2 is a schematic structural view of a side view of the chin shaping osteotomy positioning guide of the present invention.

Reference numbers in the figures:

1. a guide plate body;

11. an osteotomy line guide slot;

12. a first guide portion;

13. a second guide portion;

14. a third guide portion;

2. a osteotomy wing plate;

3. and (6) nail holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "one side", "the other side", "the outer edge", "the upper side", "the lower side", "both ends", "one end", "the other end", and the like indicate the orientation or the positional relationship based on the orientation or the positional relationship shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or the element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "provided," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1

Referring to fig. 1-2, the chin shaping osteotomy positioning guide plate comprises a guide plate body 1, wherein the guide plate body 1 is provided with two osteotomy line guide grooves 11, the length and/or width of the osteotomy line guide grooves 11 are matched with an osteotomy line and/or a bone removal amount, and each size of the guide plate body can be customized according to a patient. The shape of the guide plate body 1 is matched with the physiological structure of the chin of the mandible, and the bone contact surface of the guide plate body 1 is tightly attached to the chin of the mandible. As shown in figures 1 and 2, the general shape of the guide plate body is arc-shaped, and the inner side surface and the periphery of the arc-shaped guide plate body are customized according to the physiological structures of the lower alveolus and the chin of the mandible of different patients. Through the positioning guide plate with the two osteotomy line guide grooves 11, the digital chin shaping surgical scheme of double-layer osteotomy of the chin is quickly and accurately transferred to the surgical operation.

In a preferred embodiment, the positioning guide further comprises two osteotomy wings 2, one side of each osteotomy wing 2 is disposed on the guide body 1, the other side thereof protrudes out of the guide body 1, and the two osteotomy wings 2 are respectively disposed at outer edges of the two osteotomy line guide grooves 11.

In a preferred embodiment, the length of the osteotomy wing plate 2 is larger than the length of the osteotomy line guide groove 11, the osteotomy wing plate 2 is positioned at the lower outer edge of the osteotomy line guide groove 11, and the height of the osteotomy wing plate 2 protruding out of the guide plate body 1 is 1-3 mm. The included angle between the osteotomy wing plate 2 and the guide plate body 1 is 30-150 degrees, and the proper arrangement mode of the osteotomy wing plate is helpful for realizing accurate osteotomy.

In a specific embodiment, the length of the osteotomy wing plate 2 is the same as the width of the guide plate body 1, the osteotomy wing plate 2 is positioned at the lower outer edge of the osteotomy line guide groove 11, the osteotomy wing plate 2 and the guide plate body 1 have a certain inclination angle, namely, the included angle between the osteotomy wing plate 2 and the guide plate body 1 is 30-60 degrees, and the height of the osteotomy wing plate 2 protruding out of the guide plate body 1 is 1mm. Proper osteotomy wing plate arrangement helps to achieve accurate osteotomy.

In a preferred embodiment, the osteotomy wing plate 2 is integrally formed with the guide body 1, optionally by 3D printing.

In a preferred embodiment, the guide body 1 comprises a first guide part 12, a second guide part 13 and a third guide part 14 from top to bottom in sequence, and one osteotomy line guide slot 11 is arranged between two adjacent guide parts.

In a preferred embodiment, the first guide 12, the second guide 13 and the third guide 14 are each provided with 2-6 nail holes 3 for fixing the fixed fence body 1. As shown in figure 1, the first guide part 12 is provided with 4 nail holes, the second guide part is provided with 2 nail holes, the third guide part is provided with 3 nail holes, the distance between every two adjacent nail holes is 2-6mm, preferably 4-5mm, and the arrangement positions of the nail holes are consistent with the hole positions on the fixing plate (titanium plate).

In a preferred embodiment, the lower edge of the third guide portion 14 wraps around the lower edge of the chin mandible to determine the placement position of the positioning guide.

In a preferred embodiment, the first guide portion 12, the second guide portion 13 and the third guide portion 14 are all lateral guide plates, the shape of which matches the jaw chin physiology.

In a preferred embodiment, the thickness of the fence body 1 is 1-2 mm, and the width of the fence body 1 is 30-40mm. The width of the osteotomy line guiding groove 11 is 0.5-1.2mm, preferably 0.7-1mm. The guide plate body 1 is made of a resin material or a metal material and is prepared by 3D printing.

In a preferred embodiment, the distance between the two osteotomy line guide slots 11 is 8-10mm, which is determined by the osteotomy line spacing.

The preparation method of the chin shaping osteotomy positioning guide plate in the embodiment comprises the following steps: gather patient affected part medical image, simulate according to patient mandible chin physiology structure and malformation degree and customize the chin shaping and cut bone location baffle, adopt resin material or metal material to carry out 3D and print integrated into one piece at last.

The use method of the chin shaping osteotomy positioning guide plate in the embodiment comprises the following specific steps: the tissue surface of the guide plate is attached to the front of the chin of the mandible in the operation, and the lower edge of the guide plate is hooked around the lower edge of the mandible of the chin. And fixing the position of the nail hole by using a titanium alloy screw. The osteotomy is completed by cutting along the guide surfaces of the upper and lower guide plates using a wobble saw.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The use of the phrase "comprising one of the elements does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element.

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

Claims (10)

1. The chin shaping osteotomy positioning guide plate comprises a guide plate body (1) and is characterized in that the guide plate body (1) is provided with two osteotomy line guide grooves (11), and the length and/or the width of each osteotomy line guide groove (11) is matched with an osteotomy line and/or a bone removal amount.

2. A chin shaping osteotomy positioning guide according to claim 1, characterized in that the guide body (1) is shaped to match the mandible chin physiology;

and/or the bone contact surface of the guide plate body (1) is suitable for being tightly attached to the chin of the mandible.

3. A chin shaping osteotomy guiding plate according to claim 2, characterized in that said positioning guiding plate further comprises two osteotomy wings (2);

one side of each osteotomy wing plate (2) is arranged on the guide plate body (1), the other side of each osteotomy wing plate protrudes out of the guide plate body (1), and the two osteotomy wing plates (2) are respectively positioned at the outer edges of the two osteotomy line guide grooves (11).

4. The chin shaping osteotomy guiding plate according to claim 3, wherein the osteotomy wing plate (2) has a length greater than the length of the osteotomy line guiding slot (11);

and/or the osteotomy wing plate (2) is positioned at the lower outer edge of the osteotomy line guide groove (11);

and/or the height of the osteotomy wing plate (2) protruding out of the guide plate body (1) is 1-3 mm;

and/or the included angle between the osteotomy wing plate (2) and the guide plate body (1) is 30-150 degrees;

and/or the osteotomy wing plate (2) and the guide plate body (1) are integrally formed.

5. The chin shaping osteotomy positioning guide of claim 1, wherein the guide body (1) comprises, in order from top to bottom, a first guide portion (12), a second guide portion (13) and a third guide portion (14), one osteotomy line guide slot (11) being provided between two adjacent guide portions.

6. A chin shaping osteotomy positioning guide according to claim 5, characterized in that the first (12), second (13) and third (14) guide portions are each provided with 2-6 nail holes (3) for fixing the guide body (1).

7. The chin shaping osteotomy guiding plate according to claim 6, wherein the distance between adjacent nail holes (3) on each guiding portion is 2-6mm.

8. The chin shaping osteotomy positioning guide of claim 5, wherein a lower edge of the third guide portion (14) wraps around a chin mandible lower edge.

9. A chin shaping osteotomy positioning guide according to claim 5, wherein the first (12), second (13) and third (14) guide portions are transverse guides each shaped to match the chin physiology of the mandible.

10. The genioplasty osteotomy positioning guide of any of claims 1-9, wherein the guide body (1) has a thickness of 1-2 mm; and/or the width of the guide plate body (1) is 30-40mm; and/or the distance between the two osteotomy line guide grooves (11) is 8-10mm; and/or the width of the osteotomy line guide groove (11) is 0.5-1.2mm; and/or the guide plate body (1) is made of resin materials or metal materials.

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