CN211560480U - Asymmetric maxillary sagittal arch expanding device - Google Patents
Asymmetric maxillary sagittal arch expanding device Download PDFInfo
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- CN211560480U CN211560480U CN201921796412.5U CN201921796412U CN211560480U CN 211560480 U CN211560480 U CN 211560480U CN 201921796412 U CN201921796412 U CN 201921796412U CN 211560480 U CN211560480 U CN 211560480U
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Abstract
An asymmetric maxilla sagittal expansion device comprising: preceding rotatory arm of a body structural connection, preceding molar belt circle and palatal arch, the back rotatory arm of a body structural connection, molar belt circle and support, and spiral expands the bow ware, the spiral expands the bow ware and includes a first linkage segment, a second linkage segment and sets up the threaded rod in first linkage segment and second linkage segment respectively, first linkage segment and second linkage segment move along the threaded rod, wherein, first linkage segment is connected with preceding rotatory arm through a first regulating part, the second linkage segment is connected with back rotatory arm through a second regulating part, preceding rotatory arm is adjustable for the angle of the axis direction of threaded rod, back rotatory arm is adjustable for the angle of the axis direction of threaded rod, make maxilla adjustable with its contained angle of direction of advance, simultaneously the increment of preceding maxilla in its direction of advance is adjustable.
Description
Technical Field
The utility model relates to the technical field of medical equipment, concretely relates to asymmetric maxilla sagittal expands bow device to.
Background
Patients with unilateral alveolar fissure with or without cleft lip and cleft palate often show deficient sagittal development of the maxilla with collapse of the fractured lateral bone segments. Because of the insufficient amount of maxillary bone, patients of the type often have the phenomenon of serious crowding of dentition caused by the fact that the amount of teeth exceeds the amount of bone, and unilateral alveolar fissure often causes an asymmetric dental arch form. In addition, with normal or over-developed mandible, underdevelopment of the maxilla creates a concave, less aesthetic side-view for this type of patient, and the fractured, laterally collapsed bone segments fail to support the soft tissue of the lips, resulting in unilateral soft tissue concavity of the lips. In order to solve the problems of patients of the type, an orthodontic-surgical combined treatment mode is generally adopted clinically at present, after maxillary bone cortex is cut, a Hyrax sagittal spiral arch expander is used for symmetrically pushing anterior maxillary segments forwards and stretching the maxillary segments into bones, and finally the effect of maxillary sagittal bone increment is achieved. However, the treatment solves the problem of insufficient development of the upper jaw bone sagittal direction of the patient to a certain extent, but the problems of collapse of bone sections at the fracture side and asymmetry of dental arches cannot be solved.
Therefore, it is highly desirable to provide an effective and comfortable method for the patient to solve the problem of collapse of fractured lateral bone segments and asymmetry of dental arch by controlling the angle and direction of advancement of the anterior maxillary bone segments while solving the problem of insufficient maxillary development.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an asymmetric maxilla sagittal is to expanding bow device, through the direction of advance of controlling the anterior segment maxilla to and the anterior segment maxilla rather than the angle that the direction of advance becomes, adjustment dental arch pattern, solve the fracture bone section and sink and the asymmetric problem of dental arch.
In order to achieve the purpose, the utility model adopts the following technical scheme.
The utility model provides an asymmetric maxilla sagittal is to expanding bow device, include:
a front palate plate assembly, the front palate plate assembly comprising an anterior rotating arm, an anterior molar band and a palatal arch, the palatal arch being connected with the anterior molar band, the anterior rotating arm being connected with the palatal arch;
the back palate plate assembly comprises a back rotating arm, a molar band ring and a bracket, wherein the bracket is connected with the molar band ring, and the back rotating arm is connected with the bracket; and the number of the first and second groups,
a spiral bow expander, which comprises a first connecting section, a second connecting section and a threaded rod respectively arranged in the first connecting section and the second connecting section, the first connecting section and the second connecting section move along the threaded rod, wherein,
first linkage segment through a first regulating part with preceding rotatory arm is connected, the second linkage segment through a second regulating part with back rotatory arm is connected, preceding rotatory arm is relative the contained angle of the axis direction of threaded rod is adjustable, back rotatory arm is relative the contained angle of the axis direction of threaded rod is adjustable.
Further, the threaded rod comprises a first threaded rod and a second threaded rod, and the thread directions of the first threaded rod and the second threaded rod are opposite.
Furthermore, an adjusting part is arranged between the first threaded rod and the second threaded rod and comprises an adjusting hole, and the increase and decrease amount of the spiral bow expander in the axis direction of the threaded rod can be adjusted.
Further, the adjusting portion, the first threaded rod and the second threaded rod are of an integral structure.
Furthermore, the spiral bow expander also comprises a polished rod, the polished rod and the threaded rod are arranged in parallel, and two ends of the polished rod are respectively arranged in the first connecting section and the second connecting section.
Further, the anterior molar band ring is structurally connected with the faucial pillars as a whole, and the faucial pillars are structurally connected with the anterior rotating arms as a whole; the molar belt ring is structurally connected with the support as a whole, and the support is structurally connected with the rear rotating arm as a whole.
Furthermore, scales are arranged on the spiral bow expander, and the measuring range of the scales is 0-7 mm.
Further, the anterior maxilla advances 0.25mm for every 90 ° of rotation of the threaded rod.
Further, the minimum rotation unit of the front rotation arm is 7.2 °, and the minimum rotation unit of the rear rotation arm is 7.2 °.
Further, the first adjusting piece and the second adjusting piece are screws, and the size range of the screws is M2-M4.
In the asymmetric maxillary sagittal arch expanding device, the personalized bone augmentation can be effectively carried out on the two sides of the maxilla by controlling the advancing direction of the maxilla at the front section and the angle formed by the advancing direction of the maxilla at the front section and the advancing direction of the spiral arch expander, and the problems of insufficient development of the maxilla, collapse of fracture side bone sections, asymmetric dental arches and the like are solved; the utility model discloses the device accords with clinical use custom, and the less operation of foreign body sensation is more convenient, and the practicality is strong.
Drawings
Fig. 1 is a schematic structural diagram of the sagittal arch expanding device for asymmetric maxilla of the present invention.
The reference numerals in the figures are respectively:
1. a front palate plate assembly; 2. A posterior palate plate assembly;
3. a spiral bow expander; 4. The arm is rotated forwards;
5. the arm is rotated; 6. A premolar belt ring;
7. a faucial pillar; 8. grinding a dental belt ring;
9. a support; 10. A first adjustment member;
11. a second adjustment member; 31. A first connection section;
32. a second connection section; 33. A threaded rod;
331. a first threaded rod; 332. A second threaded rod;
333. an adjustment section; 334. An adjustment hole;
34. a polish rod.
Detailed Description
The following description of the embodiments of the asymmetric maxilla sagittal arch expander device of the present invention is provided in conjunction with the accompanying drawings, but it should be noted that the present invention is not limited to the following embodiments.
Referring to fig. 1, fig. 1 is a schematic structural diagram of the sagittal expansion device for maxilla of the present invention; the utility model provides an asymmetric maxilla sagittal is to expanding bow device, include: an anterior palatal plate assembly 1, a posterior palatal plate assembly 2, and a spiral expander 3 disposed between the anterior palatal plate assembly 1 and the posterior palatal plate assembly 2.
Referring to fig. 1, in this embodiment, the anterior palate plate assembly 1 includes an anterior rotating arm 4, an anterior molar band 6 and a palatal arch 7, the anterior molar band 6 is connected to the palatal arch 7 in an integrated manner, the anterior molar band 6 is used to be fixed to an anterior molar, the palatal arch 7 is used to be fixed to an anterior palate plate, the anterior molar band 6 and the palatal arch 7 are both paired and symmetrically disposed on two sides of the anterior rotating arm 4, and the anterior rotating arm 4 is connected to the palatal arch 7 in an integrated manner.
In this embodiment, the posterior palate plate assembly 2 is disposed on the posterior palate plate, the posterior palate plate assembly 2 includes a posterior rotation arm 5, a molar band 8 and a support 9, the molar band 8 is connected with the support 9 in an integrated structure, the molar band 8 is used for fixing molar, the molar band 8 and the support 9 are both disposed on two sides of the posterior rotation arm in pair and symmetrically, the posterior rotation arm 5 is connected with the support 9 in an integrated structure.
In this embodiment, the anterior palate plate assembly 1 is mounted on the spiral arch expander 3 by the anterior rotating arm 4, the posterior palate plate assembly 2 is mounted on the spiral arch expander 3 by the posterior rotating arm 5, the spiral arch expander 3 is disposed between the anterior rotating arm 4 and the posterior rotating arm 5, and the spiral arch expander 3 pushes the anterior palate plate assembly 1 and the posterior palate plate assembly 2 forward and backward.
Specifically, the spiral expander 3 includes a first connecting section 31, a second connecting section 32 and a threaded rod 33 respectively disposed in the first connecting section 31 and the second connecting section 32, and the first connecting section 31 and the second connecting section 32 move along the threaded rod 33.
Further, the threaded rod 33 includes a first threaded rod 331 and a second threaded rod 332, the thread directions of the first threaded rod 331 and the second threaded rod 332 are opposite, the threaded rod 33 further includes an adjusting portion 333 disposed between the first threaded rod 331 and the second threaded rod 332, the first threaded rod 331 and the adjusting portion 333 are an integral structure, the second threaded rod 332 and the adjusting portion 333 are an integral structure, the adjusting portion 333 includes an adjusting hole 334, the first threaded rod 331 and the second threaded rod 332 are driven to rotate by rotating the adjusting hole 334, since the thread directions of the first threaded rod 331 and the second threaded rod 332 are opposite, the first connecting section 31 and the second connecting section 32 are respectively screwed out when the first threaded rod 331 and the second threaded rod 332 rotate, thereby pushing the first connection section 31 and the second connection section 32 to make a linear motion along the axial direction of the spiral expander 3, further pushing the spiral expander 3 to generate an increment, and pushing the anterior maxillary bone to advance by the increment of the spiral expander 3.
Further, the spiral bow expander 3 further comprises a polish rod 34, two ends of the polish rod 34 are respectively disposed in the first connecting section 31 and the second connecting section 32, the polish rod 34 is slidable relative to the first connecting section 31 and the second connecting section 32, the polish rod 34 is disposed in parallel with the threaded rod 33, and the polish rod 34 is used for providing a linear guiding and strengthening effect for the first connecting section 31 and the second connecting section 32, so that the advancing direction of the spiral bow expander 3 is not deviated.
In this embodiment, the first connecting section 31 is connected to the front rotating arm 4 through a first adjusting member 10, an included angle of the front rotating arm 4 relative to the axial direction of the threaded rod 33 is adjustable, because the front molar band 6, the palatal arch 7 and the front rotating arm 4 of the front palatal plate assembly 1 are integrated, and the front palatal plate assembly 1 is tightly attached to the front palatal plate, an included angle between the front maxilla and the advancing direction of the spiral arch expander 3 can be further adjusted by adjusting the first adjusting member 10.
In this embodiment, the second connecting section 32 is connected to the rear rotating arm 5 through a second adjusting member 11, an included angle of the rear rotating arm 5 relative to the axis direction of the threaded rod 33 is adjustable, the rear rotating arm 5 can be adjusted to a desired angle by adjusting the second adjusting member 11, because the molar band 8, the bracket 9 and the rear rotating arm 5 of the rear palate plate assembly 2 are of an integral structure, and the rear palate plate assembly 2 is tightly attached to the rear maxillary bone, and the included angle of the rear maxillary bone and the advancing direction of the spiral arch expander 3 can be further adjusted by adjusting the second adjusting member 11.
As a preferred embodiment, the minimum rotation unit of each of the front rotating arm 4 and the rear rotating arm 5 is 7.2 °, which is beneficial to improving the adjustment precision of the advancing direction of the spiral pantograph 3. By adjusting the angle of the front rotating arm 4 and the rear rotating arm 5 relative to the advancing direction of the spiral arch expander 3, the included angle between the front segment maxilla and the advancing direction of the spiral arch expander 3 can be adjusted, so that the advancing direction of the front segment palatal plate is changed, and therefore personalized bone augmentation can be effectively generated on two sides of the maxilla, and the correction purpose is achieved.
In a preferred embodiment, the spiral bow expander 3 is provided with scales, and the measuring range of the scales is 0-7 mm. The adjusting hole 334 on the spiral arch expander 3 rotates one quarter turn (90 degrees) every time, so that the front maxilla advances by 0.25mm, the purpose of generating the increment of the maxilla can be achieved, and the damage to the maxilla of a patient caused by the overlarge one-time increment of the spiral arch expander 3 in the advancing direction can be effectively prevented.
In a preferred embodiment, the first connection section 31 and the second connection section 32 of the spiral bow expander 3 may be sleeves, the first adjusting piece 10 and the second adjusting piece 11 are screws, and the size of the screws ranges from M2 to M4, specifically, the size of each of the first adjusting piece 10 and the second adjusting piece 11 is M3.
In this embodiment, the asymmetric maxillary sagittal expansion device further includes a rotating rod, one end of the rotating rod is a screwdriver, the screwdriver is used to screw or unscrew the first adjusting member 10 and the second adjusting member 11, so as to change the angles of the front rotating arm 4 and the rear rotating arm 5 relative to the threaded rod 33, and the advancing increment of the spiral expansion device 3 is changed by adjusting the adjusting hole 334.
The utility model discloses asymmetric maxilla sagittal is to expanding bow device's application method specifically as follows:
as shown in fig. 1, in use, an operator firstly performs maxillary bone cortical incision on a patient, the operation position is the region between front molars or between the front molars and the molars of the patient, the maxilla is divided into a front section maxilla and a rear section maxilla, the front palate plate assembly 1 is fixed at the front section maxilla of the patient, specifically, the front molar belt ring 6 is fixed on the front molars of the patient, the palatal arch 7 is tightly attached to the front maxillary lingual side of the patient, the rear palate plate assembly 2 is fixed at the rear section maxilla of the patient, and specifically, the molar belt ring 8 is fixed on the molars of the patient; loosening the first adjusting element 10 by the screwdriver of the rotating rod, adjusting the included angle of the front rotating arm 4 relative to the threaded rod 33 to a desired angle, namely changing the included angle between the front segment maxilla and the advancing direction of the spiral bow expander 3, and then screwing the first adjusting element 10 to fix the front rotating arm 4; the second adjusting piece 11 is unscrewed through the screwdriver of the rotating rod, the included angle of the rear rotating arm 5 relative to the threaded rod 33 is adjusted to a desired angle, and then the second adjusting piece 11 is screwed to fix the rear rotating arm 5, so that the advancing direction of the upper jaw bone of the front section is changed; the screwdriver of the rotating rod rotates the adjusting hole 334 to change the increment and decrement of the spiral expander 3 in the axial direction of the threaded rod 33, and the spiral expander 3 pushes the maxilla to generate increment in the advancing direction.
Therefore, as explained above, the asymmetric maxilla sagittal arch expander of the utility model can effectively perform individualized bone augmentation to both sides of the maxilla by controlling the angle formed by the front segment maxilla and the advancing direction of the spiral arch expander, and solve the problems of insufficient development of the maxilla, collapse of fracture side bone segments, asymmetric dental arches and the like; the utility model discloses the device accords with clinical use custom, and the less operation of foreign body sensation is more convenient, and the practicality is strong.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. An asymmetric maxilla sagittal expansion device, comprising:
a front palate plate assembly, the front palate plate assembly comprising an anterior rotating arm, an anterior molar band and a palatal arch, the palatal arch being connected with the anterior molar band, the anterior rotating arm being connected with the palatal arch;
the back palate plate assembly comprises a back rotating arm, a molar band ring and a bracket, wherein the bracket is connected with the molar band ring, and the back rotating arm is connected with the bracket; and the number of the first and second groups,
a spiral bow expander, which comprises a first connecting section, a second connecting section and a threaded rod respectively arranged in the first connecting section and the second connecting section, the first connecting section and the second connecting section move along the threaded rod, wherein,
first linkage segment through a first regulating part with preceding rotatory arm is connected, the second linkage segment through a second regulating part with back rotatory arm is connected, preceding rotatory arm is relative the contained angle of the axis direction of threaded rod is adjustable, back rotatory arm is relative the contained angle of the axis direction of threaded rod is adjustable.
2. The asymmetric maxillary sagittal expansion bow device of claim 1, wherein the threaded shaft comprises a first threaded shaft and a second threaded shaft, the first threaded shaft and the second threaded shaft having opposite thread turns.
3. The asymmetric maxillary sagittal expansion device of claim 2, wherein an adjustment portion is provided between the first threaded rod and the second threaded rod, the adjustment portion comprising an adjustment hole, the increase or decrease of the helical expansion device in the axial direction of the threaded rod being adjustable.
4. The asymmetric maxillary sagittal expansion bow device of claim 3, wherein the adjustment portion is of unitary construction with the first threaded rod and the second threaded rod.
5. The asymmetric maxillary sagittal expansion device of claim 1, wherein the helical expansion device further comprises a polish rod disposed parallel to the threaded rod, the polish rod having two ends disposed in the first and second connection sections, respectively.
6. The asymmetric maxillary sagittal expansion arch device of claim 1, wherein the anterior molar band ring is integrally connected with the palatal arch, and the palatal arch is integrally connected with the anterior rotating arm; the molar belt ring is structurally connected with the support as a whole, and the support is structurally connected with the rear rotating arm as a whole.
7. The asymmetric maxillary sagittal expansion device of claim 1, wherein the spiral expansion device is provided with a scale, and the scale range is 0-7 mm.
8. The asymmetric maxillary sagittal expansion device of claim 1 wherein the anterior maxillary advancement is 0.25mm per 90 ° of rotation of the threaded rod.
9. The asymmetric maxillary sagittal expansion arch device of claim 1, wherein the minimum rotation unit of the anterior rotating arm is 7.2 ° and the minimum rotation unit of the posterior rotating arm is 7.2 °.
10. The asymmetric maxillary sagittal expansion arch device of claim 1, wherein the first and second adjustment members are screws ranging in size from M2 to M4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921796412.5U CN211560480U (en) | 2019-10-24 | 2019-10-24 | Asymmetric maxillary sagittal arch expanding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921796412.5U CN211560480U (en) | 2019-10-24 | 2019-10-24 | Asymmetric maxillary sagittal arch expanding device |
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| Publication Number | Publication Date |
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| CN211560480U true CN211560480U (en) | 2020-09-25 |
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| CN201921796412.5U Active CN211560480U (en) | 2019-10-24 | 2019-10-24 | Asymmetric maxillary sagittal arch expanding device |
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| CN (1) | CN211560480U (en) |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Li Ruomei Inventor after: Chen Zhenqi Inventor after: Zhang Xiaoyu Inventor after: Jiang Wenbo Inventor before: Li Ruomei Inventor before: Chen Zhenqi Inventor before: Zhang Xiaoyu Inventor before: Jiang Bowen |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210201 Address after: 201707 1st floor, building 4, No. 669, Tianchen Road, Qingpu District, Shanghai Patentee after: Shanghai Liyuan Medical Technology Co.,Ltd. Address before: 200011 No. 639, manufacturing Bureau Road, Shanghai, Huangpu District Patentee before: Shanghai Ninth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine |