CN221512281U - Anatomical type facebow body mechanism for complete denture repair - Google Patents

Abstract

The utility model discloses an anatomical facebow bow body mechanism for complete denture restoration, which comprises an outer canthus auricular plane frame assembly provided with an auricular plug rod, a hinge shaft positioning rod and a nose support, an auricular lower nasal plane frame assembly provided with an infraorbital edge pointer, an infraorbital plane frame assembly provided with an infraorbital edge pointer, a nose root auricular angle plate for indicating the included angle between the auricular plane frame assembly and the auricular lower nasal plane frame assembly, a first positioning piece for fixing and positioning the auricular outer canthus auricular plane frame assembly and the auricular lower nasal plane frame assembly, and a second positioning piece for fixing and positioning the auricular outer canthus auricular plane frame assembly and the infraorbital plane frame assembly of the nose support.

Description

Anatomical type facebow body mechanism for complete denture repair

Technical Field

The utility model relates to an oral medical device, in particular to an anatomic facebow body mechanism for complete denture restoration.

Background

The facebow is the primary means of registering and translating the hinge axis relationship of mandibular movement hinge motion.

Anatomical type facebow in facebow classification adopts anatomical reference points to estimate the position of a hinge axis, is simple and convenient to operate and is commonly used clinically.

However, the anatomical reference points such as the nasal wing midpoint, the tragus upper edge, the tragus midpoint, the external auditory canal upper edge and the like which are utilized by the traditional anatomical facebow and even the academic theory according to which the traditional anatomical facebow is based are all positioned on a face soft tissue surface with a certain area, and the positioning cannot be precisely positioned, and particularly cannot be mechanically positioned, so that the mechanical mechanism which is pursued to be as precise as possible, has small operating positioning difference of different doctors and has small repeated positioning difference is not suitable based on the existing anatomical points.

For example: the traditional anatomical facebow for complete denture repair generally adopts a mode of aligning an indication rod with the midpoint of the nasal wing to determine the plane of the nasal wing and the tragus. In practice the anatomical location called the "midpoint of the nasalar" is unclear, in particular at which point, resulting in different dentists, the so-called midpoints of the nasalar being aligned, resulting in different defined planes of the nasalar tragus.

The traditional anatomical facebow uses statistical experience values to determine the position of the hinge axis of the temporomandibular joint of a patient based on the facial anatomy points of the patient. However, the specific theory is that the manufacturer of each facebow is not the same and is not obvious to the dentist or dental technician. If one user uses different brands of facebows, the obtained temporomandibular joint hinge axis position and its positional relationship with the occlusal plane are different, this is next; the user does not even know the cause of this discrepancy and is therefore unable to make quantitative analyses, comparisons, and even less experience accumulation.

Although the traditional anatomical facebow uses the facial anatomical points of the patient to calculate the position of the hinge axis of the temporomandibular joint in principle, the actual calculated parameters are questionable, for example, how much mm the hinge axis is located from the earhole is set, and how much degree the angle between the hinge axis and the plane of the orbit ear or the plane of the nose wing ear is defined. Although this is also a method of estimation, in practice, the function of the facebow is to obtain the relationship between the hinge axis and the occlusal plane of the patient, whereas in the conventional theory, the orbital plane and the nasal alar plane are considered to be strongly related to the occlusal plane, which is equivalent to the beginning of the design of the facebow, and the facebow is not yet mounted on the head of the patient for position adjustment, so that the relative positions of the hinge axis and the occlusal plane are fixed, which is not meaningful. In practical academia, the theory of strongly correlating the hinge axis position with the orbital plane and the nasal alar plane position is very few.

Disclosure of utility model

In order to overcome the defects, the utility model provides an anatomical type facial arch body mechanism for complete denture restoration, which can ensure that the hinge axis positions and the plane position relationship of the hinge axis positions and the nasal wing ear plane positions, which are obtained by different operators for the same patient, are consistent.

The technical scheme adopted by the utility model for solving the technical problems is as follows: the utility model provides an anatomical type facebow bow body mechanism to complete denture restoration, includes root of nose outer canthus earhole plane frame subassembly, earhole plane frame subassembly under nose, axle socket plane frame subassembly, root of nose earhole angle board under nose, first setting element and second setting element, wherein:

The plane frame component of the outer canthus earhole comprises an outer canthus earhole frame, an earhole plug rod, a hinge shaft positioning rod and a nose support, wherein the outer canthus earhole frame is of a U-shaped frame structure formed by two side plates and a transverse plate, the earhole plug rod can be fixedly positioned on the two side plates of the outer canthus earhole frame, the two earhole plug rods can be respectively plugged into the earholes of a patient, the hinge shaft positioning rod can be fixedly arranged on the two side plates of the outer canthus earhole frame, the distance between the axis of the hinge shaft positioning rod and the axis of the earhole plug rod is 13mm, the hinge shaft positioning rod is closer to the face direction of the patient relative to the earhole plug rod, the nose support can be fixedly arranged in the middle of the transverse plate of the outer canthus earhole frame parallel to the face of the patient, and the nose support can be tightly attached to the surface of the root of the patient;

The under-the-nose earhole plane frame component comprises an under-nose earhole plane frame, an under-nose positioning rod and a jaw fork positioning component, wherein the under-nose earhole plane frame is of a U-shaped frame structure formed by two side plates and a transverse plate, the two side plates of the under-nose earhole plane frame are connected with the two side plates of the under-nose outer canthus earhole frame in a connecting way through an earhole plug rod, the two ends of the under-nose positioning rod can be fixedly connected with the two side plates of the under-nose earhole plane frame respectively, the middle of the under-nose positioning rod can be pressed on an under-nose point of a patient, and the jaw fork positioning component for mounting a jaw fork can be fixedly mounted on the middle position of the transverse plate of the under-nose earhole plane frame;

The shaft orbit plane frame assembly comprises a shaft orbit plane frame, an orbit lower edge pointer and a locking positioning piece, wherein one end of the shaft orbit plane frame is hinged on one side plate of the outer canthus auricular hole frame through a hinge shaft positioning rod, one end of the orbit lower edge pointer can be rotatably arranged on the other end of the shaft orbit plane frame around a rotating shaft extending in the vertical direction, the other end of the orbit lower edge pointer can prop against the lowest point of the orbit lower edge of a patient, and one end of the orbit lower edge pointer and the other end of the shaft orbit plane frame can be fixedly positioned by the locking positioning piece;

The angle plate of the angle under the nose of the nose root earhole is fixedly arranged on two side plates of the plane frame of the angle under the nose of the nose root earhole, a plurality of angle scales are arranged on the angle plate of the angle under the nose of the nose root earhole, the angle scales are distributed by taking an earhole plug rod as a circle center, and the side plate of the earhole frame of the nose root outer canthus can be opposite to the angle scale on the angle plate of the angle under the nose of the nose root earhole to display the angle between the earhole frame of the nose root outer canthus and the plane frame of the angle under the nose earhole;

The first locating piece can fix and locate the lateral plate of the outer canthus earhole frame and the lateral plate of the plane frame of the lower canthus earhole, and the second locating piece can fix and locate the lateral plate of the outer canthus earhole frame and one end of the plane frame of the shaft orbit.

As a further improvement of the utility model, a marking line extending along the length direction of the marking line is arranged in the middle of the side plate of the outer canthus auricular hole frame, and the marking line and the angle scale on the angle plate of the angle of the lower canthus auricular hole can be opposite to the angle scale for displaying the angle between the outer canthus auricular hole frame and the plane frame of the lower canthus auricular hole.

As a further improvement of the utility model, a hollowed first strip-shaped hole extending along the length direction of the lateral plate of the outer canthus auricular hole frame is also arranged in the middle of the lateral plate of the outer canthus auricular hole frame, and whether the outer canthus is positioned on the connecting line of the outer canthus auricular hole can be observed through the first strip-shaped hole.

As a further improvement of the utility model, a nose support positioning block is fixedly arranged in the middle of the transverse plate of the outer canthus ear hole frame, the transverse plate of the outer canthus ear hole frame and the nose support positioning block are provided with nose support positioning holes parallel to the side plates of the outer canthus ear hole frame, a nose support rod is inserted in the nose support positioning holes and can axially slide along the nose support positioning holes, the nose support is fixedly arranged on the end part of one end of the nose support rod, a nose support rod positioning screw is movably connected to the nose support positioning block in a threaded manner, and the end part of the nose support positioning screw can extend into the nose support positioning holes and tightly support the circumferential outer side surfaces of the nose support rods to fix and position the nose support positioning rods.

As a further improvement of the utility model, the lower orbital edge pointer is provided with a strip-shaped adjusting hole extending along the length direction of the lower orbital edge pointer, the locking positioning piece is an adjusting screw, the other end of the lower orbital edge pointer is provided with a U-shaped slot, one end of the lower orbital edge pointer is inserted into the U-shaped slot at the other end of the lower orbital edge pointer, round holes and threaded holes are coaxially arranged on two side walls of the U-shaped slot at the other end of the lower orbital edge pointer, and studs of the adjusting screw penetrate through the round holes and the strip-shaped adjusting hole and are finally in threaded connection with the threaded holes.

As a further improvement of the utility model, the under-nose positioning rod and the shaft orbit plane frame are provided with horizontal bubbles.

As a further improvement of the utility model, the two side plates of the plane frame of the subnasal earhole are respectively provided with a second strip hole extending along the length direction of the plane frame of the subnasal earhole, two subnasal positioning rod locking screws are respectively arranged in the two second strip holes in a sliding way, the subnasal positioning rod locking screws are respectively connected with the subnasal positioning rods in a threaded way, and the heads of the subnasal positioning rod locking screws can tightly abut against the outer side surfaces of the two side plates of the plane frame of the subnasal earhole to realize locking positioning of the subnasal positioning rods.

As a further improvement of the utility model, a plug rod positioning block is fixedly arranged on two side plates of one of the outer canthus ear hole frame and the lower nasal ear hole plane frame, plug rod perforations are coaxially arranged on the two side plates of the outer canthus ear hole frame and the lower nasal ear hole plane frame and on the plug rod positioning block, the plug rod of the ear hole can be axially and slidably inserted into the plug rod perforations, a plug rod positioning threaded hole is further arranged on the plug rod positioning block, a plug rod locking screw is movably screwed in the plug rod positioning threaded hole, and the plug rod locking screw can tightly abut against the outer side wall of the circumference of the plug rod of the ear hole so as to fix and position the plug rod and the plug rod positioning block.

As a further improvement of the utility model, a hinge shaft positioning block is fixedly arranged on two side plates of the outer canthus of the nasion, hinge shaft perforation holes are coaxially arranged on the two side plates of the outer canthus of the nasion and the hinge shaft positioning block, the hinge shaft positioning rod is axially and slidably inserted into the hinge shaft perforation holes, a hinge shaft positioning screw hole is also arranged on the hinge shaft positioning block, a hinge shaft locking screw is movably screwed in the hinge shaft positioning screw hole, the hinge shaft locking screw can tightly abut against the outer side wall of the circumference of the hinge shaft positioning rod to fixedly position the hinge shaft positioning rod and the hinge shaft positioning block, avoidance notches for avoiding the hinge shaft positioning rod are also respectively arranged on the two side plates of the plane frame of the nasion, the hinge shaft positioning rod can move in the avoidance notches, one end of the plane frame of the shaft orbit is also provided with the hinge shaft perforation holes, the hinge shaft perforation holes at one end of the plane frame of the shaft orbit is sleeved outside one end of the hinge shaft positioning rod, and the second positioning piece is a clamping nut movably screwed at one end of the hinge shaft positioning rod, and the clamping nut tightly abuts against the surface of the plane frame of the shaft orbit to realize the positioning of the orbit plane frame.

As a further improvement of the utility model, the angle plate of the subnasal angle of the nasion earhole is an arc-shaped plate taking the axis of the earhole plug rod as the center of a circle, the angle plate of the subnasal angle of the nasion earhole is concentrically provided with an arc-shaped hole, the first positioning piece is a knob screw which can be slidably arranged in the arc-shaped hole, the stud part of the knob screw is in threaded connection with the lateral plate of the lateral canthus earhole frame, and the knob part of the knob screw tightly abuts against the surface of the angle plate of the subnasal angle of the nasion earhole to realize clamping and positioning of the lateral plate of the lateral canthus earhole frame of the nasion earhole and the angle plate of the subnasal angle of the nasion earhole.

The beneficial effects of the utility model are as follows: the utility model is based on the theory that the hinge axis of the traditional temporomandibular joint is approximately positioned at the connecting line between the tragus and the outer canthus and 13mm in front of the tragus, and improves on the basis, so that the facial arch is easier to position, and the positioning difference of different dentists is small and the repeated positioning difference is small; the plane of the connecting line of the earholes of the subnasal points replaces the traditional plane of the nasal wings and ears to be used as a reference parallel to the occlusal plane, the subnasal positioning rod is used for positioning the subnasal points, and the mechanical positioning is far clearer, firmer and smaller in difference than the traditional midpoint of the nasal wings; the utility model uses the nasion earhole connecting line to replace the traditional outer canthus connecting line of the middle point of the rear edge of the tragus to position the hinge axis, the earhole phase is clearer than the middle point of the rear edge of the tragus, the anatomical point is easier to position mechanically, and the positioning difference between dentists is small. The nose pad provides mechanical support for the other end. A first strip hole for outer canthus observation is also designed on the side rod horizontal middle line of the nasion earhole frame, so that the hinge axis is ensured to be positioned on the connecting line of the nasion, the outer canthus and the earhole, and the hinge axis is positioned more accurately; the utility model replaces the traditional orbital plane with the axial plane, and the position of the axial plane in anatomy statistics is close to the orbital plane, so that the utility model can position the hinge axis, and is clearer than the anatomical positioning of the reference point 'the upper edge of the external auditory canal' in the orbital plane, and easier to mechanically position; the angle between the orbit plane and the connecting line plane of the nasal root outer canthus and the ear hole is adjusted and fixed through the angle plate of the subnasal included angle of the nasal root ear hole, the angle plate is provided with angle scales, the angle value is recorded into the medical record of a patient through a dentist, and the record of the facial arch is transferred without being reworked if the patient reworked a new complete denture for a plurality of years; the outer canthus earhole frame and the shaft socket plane frame are coaxial at the hinge shaft hole site, so that the angles of the two planes can be conveniently measured, and meanwhile, the included angle between the shaft socket plane and the subnasal earhole plane can be calculated and recorded into the medical record of a patient.

Drawings

FIG. 1 is a first perspective view of the present utility model;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is a second perspective view of the present utility model;

FIG. 4 is an enlarged view of portion B of FIG. 3;

FIG. 5 is a third perspective view of the present utility model;

FIG. 6 is an enlarged view of portion C of FIG. 5;

FIG. 7 is a fourth perspective view of the present utility model;

FIG. 8 is a fifth perspective view of the present utility model;

FIG. 9 is a sixth perspective view of the present utility model;

FIG. 10 is a front view of the present utility model;

FIG. 11 is a left side view of the present utility model;

FIG. 12 is a right side view of the present utility model;

FIG. 13 is a top view of the present utility model;

FIG. 14 is a bottom view of the present utility model;

Fig. 15 is a rear view of the present utility model.

Detailed Description

Examples: the utility model provides an anatomical type facebow bow body mechanism to complete denture restoration, includes root of nose outer canthus earhole plane frame subassembly 1, earhole plane frame subassembly 2 under the nose, axle socket plane frame 31 subassembly 3, root of nose earhole angle board under nose 4, first setting element and second setting element, wherein:

The plane frame component 1 of the outer canthus and earhole comprises an outer canthus and earhole frame 11, an earhole plug rod 12, a hinge shaft positioning rod 13 and a nose support 14, wherein the outer canthus and earhole frame 11 is of a U-shaped frame structure formed by two side plates and a transverse plate, the earhole plug rod 12 can be fixedly positioned on the two side plates of the outer canthus and earhole frame 11, the two earhole plug rods 12 can be respectively plugged into the earholes of a patient, the hinge shaft positioning rod 13 can be fixedly arranged on the two side plates of the outer canthus and earhole frame 11, the distance between the axis of the hinge shaft positioning rod 13 and the axis of the earhole plug rod 12 is 13mm, the hinge shaft positioning rod 13 is closer to the face direction of the patient relative to the earhole plug rod 12, the nose support 14 can be fixedly arranged in the middle of the transverse plate of the outer canthus and earhole frame 11 parallel to the face of the patient, and the nose support 14 can be tightly attached to the surface of the root of the nose of the patient;

The otohole under-nose plane frame assembly 2 comprises an under-nose otohole plane frame 21, an under-nose positioning rod 22 and a jaw positioning assembly 23, wherein the under-nose otohole plane frame 21 is of a U-shaped frame structure formed by two side plates and a transverse plate, the two side plates of the under-nose otohole plane frame 21 are connected with the two side plates of the under-nose outer canthus otohole frame 11 in a connecting way through an otohole plug rod 12, the two ends of the under-nose positioning rod 22 can be fixedly connected with the two side plates of the under-nose otohole plane frame 21 respectively, the middle of the under-nose positioning rod 22 can be pressed on an under-nose point of a patient, and the jaw positioning assembly 23 for mounting a jaw can be fixedly mounted on the middle position of the transverse plate of the under-nose otohole plane frame 21;

The shaft orbit plane frame 31 assembly 3 comprises a shaft orbit plane frame 31, an orbit lower edge pointer 32 and a locking positioning piece 33, wherein one end of the shaft orbit plane frame 31 is hinged on one side plate of the outer canthus ear hole frame 11 through a hinge shaft positioning rod 13, one end of the orbit lower edge pointer 32 can be rotatably arranged on the other end of the shaft orbit plane frame 31 around a rotating shaft extending in the vertical direction, the other end of the orbit lower edge pointer 32 can prop against the lowest point of the orbit lower edge of a patient, and the locking positioning piece 33 can fixedly position one end of the orbit lower edge pointer 32 and the other end of the shaft orbit plane frame 31;

the angle plate 4 of the angle of the subnasal auricular hole is fixedly arranged on two side plates of the plane frame 21 of the subnasal auricular hole, a plurality of angle scales 41 are arranged on the angle plate 4 of the angle of the subnasal auricular hole, the angle scales 41 are positioned and distributed by taking the auricular hole plug rod 12 as the center of a circle, and the side plate of the auricular hole frame 11 of the outer canthus of the nose can be opposite to the angle scales 41 on the angle plate 4 of the angle of the subnasal auricular hole to display the angle between the auricular hole frame 11 of the outer canthus of the nose and the plane frame 21 of the subnasal auricular hole;

The first positioning piece can fix and position the lateral plate of the outer canthus of the nasal root and the lateral plate of the plane frame 21 of the lower canthus, and the second positioning piece can fix and position the lateral plate of the outer canthus of the nasal root and one end of the plane frame 31 of the shaft orbit.

The fixing points of the two side plates of the outer canthus earhole frame 11 are set at the auricle of the external auditory meatus of the patient, the transverse plate of the outer canthus earhole frame 11 is set at the root of the nose of the patient, the auricle is inserted into the auricle of the external auditory meatus of the patient by the auricle plug rod 12 at the auricle position, and the natural concave part of the nose is held against the root of the nose by the nose support 14 at the root of the nose by friction force. Proper adjustment of the position of the nose pad 14 at the root of the nose ensures that the line from the root of the nose to the ear hole passes through the outer canthus of the patient. According to academic theory, the hinge axis of the temporomandibular joint of a patient should be on the outer canthus line of the earhole.

Theoretically, the empirical hinge axis should be on the line from the midpoint of the trailing edge of the tragus to the outer canthus, and because the midpoint of the trailing edge of the tragus is not designed to be mechanically retained, the midpoint of the trailing edge of the tragus is almost blocked at the outlet of the auricular orifice of the external auditory canal, the midpoint of the trailing edge of the tragus is replaced by the auricular orifice of the external auditory canal of the patient.

The position of the hinge axis positioning rod 13 represents the position of the hinge axis of the mandibular joint of the patient, and is positioned 13mm from the earhole on the central horizontal line of the two side plates of the outer canthus earhole frame 11 according to the current academic theory (the distance can be customized according to the difference of the academic theory followed by the teacher in the oral institution). The inner end of the hinge shaft positioning rod 13 can be fixedly connected with a condylar ball shaft (equivalent to the hinge shaft of the jaw) on the jaw of a dental technician so as to realize the transfer of the hinge shaft position of a patient from the facial arch to the jaw.

The academic plane of the alar tragus (the plane of the nasalar ear for short, the plane of the occlusion of the complete denture patient reconstruction is required to be parallel to this plane) is defined as an imaginary plane that runs through the midpoint of the nasalar to the midpoint of the tragus, which is replaced by the auricular orifice of the external auditory canal of the patient and the midpoint of the nasalar, in this patent, by the subnasal point of the patient for the same reason. The sub-nasal locator rod 22 in the present assembly is pressed against the patient's sub-nasal point in the middle of the rod, which anatomical landmark is easier to mechanically locate than the midpoint of the nasal wing, and the plane of the line passing through the earhole to the sub-nasal point is also most likely to pass through (or very close to) the midpoint of the nasal wing. Therefore, the plane of the nasal ear hole is used for replacing the plane of the nasal wing ear.

The earhole location of the subnasal earhole planar frame 21 and the outer canthus earhole planar frame of the nose pad 14 are in coaxial articulation and are penetrated by the earhole stopper rod 12.

One end of the shaft orbit plane frame 31 is perforated by the hinge shaft positioning rod 13, the other end is in a free state, the end is hinged with the orbit lower edge pointer 32, the orbit lower edge pointer 32 can be just propped against the lowest point of the orbit lower edge of a patient by adjusting the orbit lower edge pointer 32, and the orbit lower edge pointer 32 is positioned by the locking positioning piece 33.

The orbital plane frame 31 assembly 3, once positioned, represents the patient's infraorbital plane. Instead of an academic orbital plane, which is defined as an imaginary plane connecting the lowest point of the inferior orbital rim to the upper rim of the external auditory canal, it is generally considered that when this plane is flush with the ground, the person is sitting upright with his head at the moment, and the dentist needs the patient to be in this head position when measuring the vertical distance (nose to chin) for a toothless patient to determine the vertical position of the occlusal plane. The upper edge of the external auditory canal is difficult to position by a mechanical device, and the axial orbit plane and the orbital ear plane are quite close to each other in terms of anatomical position, so that the hinge axis is used for replacing the upper edge of the external auditory canal, and the positioning is more convenient. The orbital plane of this patent is therefore equivalent to the orbital ear plane.

The angle plate 4 of the angle of the subnasal auricular hole and the angle plate 4 of the subnasal auricular hole is fixed at the outer side of the side plate of the subnasal auricular hole plane frame 21, and because the angle scale 41 is arranged on the angle plate 4 of the subnasal auricular hole and the angle of the subnasal auricular hole, after the subnasal auricular hole plane frame 21 and the outer canthus auricular hole plane frame are fixedly positioned, the angle of the angle between the two can be read and recorded in the medical record of a patient, so that when the patient re-makes the complete denture after a plurality of years, the facial arch record is not needed to be re-performed.

When the facebow is used, when the facebow is mounted on the head of a patient, the earhole plug rod 12 is only required to be inserted into the earholes on two sides of the patient, the plane frame of the subnasal earhole is positioned firstly, the subnasal earhole is tightly abutted against the subnasal point of the patient through the subnasal positioning rod 22 and kept horizontal, then the outer canthus earhole frame 11 is rotated, the nose support 14 is tightly pressed and positioned with the nose root of the patient, so that the hinge shaft position is positioned on the connecting line of the nose root, the outer canthus and the earhole, and then the side plate of the outer canthus earhole frame 11 is fixedly positioned with the side plate of the subnasal earhole plane frame 21 through the first positioning piece; the position of the shaft orbit plane frame 31 and the orbit lower edge pointer 32 on the shaft orbit plane frame are adjusted, so that the end part of the orbit lower edge pointer 32 just abuts against the lowest point of the orbit lower edge of a patient, then the orbit lower edge pointer 32 and the shaft orbit plane frame 31 are fixedly positioned through a locking positioning piece 33, and then the side plate of the nasal root outer canthus ear hole frame 11 and the shaft orbit plane frame 31 are fixedly positioned through a second positioning piece. Therefore, the fixing and positioning of the plane frame component 1 of the outer canthus earhole, the plane frame component 2 of the lower canthus earhole and the plane frame component 31 of the shaft orbit are realized according to the actual condition of a patient, and after the fixing and positioning, the scales corresponding to the plane frame side plates of the outer canthus earhole are read from the angle plate 4 of the lower canthus earhole and the nose earhole, and are recorded in the medical history of the patient.

A marking line 15 extending along the length direction of the marking line 15 is arranged in the middle of the side plate of the outer canthus auricular hole frame 11, and the marking line 15 and an angle scale 41 on the angle plate 4 of the angle of the lower canthus auricular hole can be opposite to the angle scale for displaying the angle between the outer canthus auricular hole frame 11 and the plane frame 21 of the lower canthus auricular hole. The marks corresponding to the plane frame side plates of the outer canthus and the earholes are read through the mark lines 15, the marks are more convenient and accurate to read, and the mark lines 15 can be fine seams or printing lines or scores.

The middle of the lateral plate of the outer canthus earhole frame 11 is also provided with a hollowed first strip-shaped hole 16 extending along the length direction of the lateral plate, and whether the outer canthus is positioned on the connecting line of the outer canthus earhole can be observed through the first strip-shaped hole 16 outside the lateral plate of the outer canthus earhole frame 11. It can be seen through the first elongate aperture 16 that the outer canthus is just in the line of the nasion ear hole for positioning of the nose pad 14.

The middle position of the transverse plate of the outer canthus ear hole frame 11 is fixedly provided with a nose support positioning block 17, the transverse plate of the outer canthus ear hole frame 11 and the nose support positioning block 17 are provided with nose support 14 positioning holes parallel to the side plates of the outer canthus ear hole frame 11, the nose support 14 positioning holes can be axially and slidably inserted with nose support rods 141, the nose support 14 is fixedly arranged on the end part of one end of the nose support rod 141, the nose support positioning block 17 is movably connected with a nose support rod positioning screw 171 in a screwed manner, and the end part of the nose support 14 positioning screw can extend into the nose support 14 positioning holes and tightly abut against the outer circumferential surface of the nose support rod 141 to fixedly position the nose support 14 positioning rods.

The nose support rod 141 can move back and forth through the transverse plate of the outer canthus earhole frame 11 and the nose support 14 positioning hole on the nose support positioning block 17, and is positioned by the nose support rod positioning screw 171 on the nose support positioning block 17. The nose pad 14 is mounted on the head of the nose pad rod 141, is made of soft rubber, and is shaped like a concave shape of the nose root of a human, so that the comfort and the contact area of the nose root of a patient are increased, the nose pad 14 is tightly attached to the nose root of the patient by sliding back and forth, and the positioning function of the outer canthus and the earhole frame 11 of the nose root is achieved by friction force.

The lower orbital edge pointer 32 is provided with a strip-shaped adjusting hole 321 extending along the length direction of the lower orbital edge pointer 32, the locking positioning piece 33 is an adjusting screw, the other end of the lower orbital edge pointer 32 is provided with a U-shaped slot, one end of the lower orbital edge pointer 32 is inserted into the U-shaped slot at the other end of the lower orbital edge pointer 31, two side walls of the U-shaped slot at the other end of the lower orbital edge pointer 31 are respectively and coaxially provided with a round hole and a threaded hole, a stud of the adjusting screw penetrates through the round hole and the strip-shaped adjusting hole 321 and is finally in threaded connection with the threaded hole, and one end of the lower orbital edge pointer 32 can be tightly clamped between two side walls of the U-shaped slot at the other end of the lower orbital edge pointer 31. An elongated adjusting hole 321 is formed in the infraorbital edge pointer 32, and can adjust the direction and distance from the infraorbital edge of the pointer to enable the pointer to just prop against the lowest point of the infraorbital edge of a patient, and finally the pointer is positioned by an adjusting screw.

The lower nasal locating rod 22 and the shaft orbit plane frame 31 are provided with horizontal bubbles 5. Because the nose wing ear plane on the face bow is required to be parallel to the reference plane of the jaw frame when the face bow is transferred to the jaw frame taking the nose wing ear plane as the reference plane, the jaw frame is placed on a desktop, and the reference plane is parallel to the desktop, the horizontal bubble 5 convenient for horizontal positioning is designed and installed on the front plate of the plane frame 21 of the nose lower ear hole.

Because the orbital plane is required to be positioned parallel to the ground when the facebow is mounted to the patient's head, the present patent designs the mounting of a horizontal bulb 5 on the orbital plane frame 31 for convenient horizontal positioning.

The two side plates of the under-nose earhole plane frame 21 are respectively provided with a second long strip hole 24 extending along the length direction of the two long strip holes 24, two under-nose positioning rod locking screws 241 are respectively arranged in the two second long strip holes 24 in a sliding manner, the under-nose positioning rod locking screws 241 are respectively connected with the under-nose positioning rod 22 in a threaded manner, and the heads of the under-nose positioning rod locking screws 241 can tightly abut against the outer side surfaces of the two side plates of the under-nose earhole plane frame 21 to realize locking positioning of the under-nose positioning rod 22. The two ends of the positioning rod 22 under the nose are fixed on the side plates of the plane frame 21 of the earhole under the nose through the locking screws 241 of the positioning rod under the nose, and the positioning rod 22 under the nose can be adjusted in front and back positions to adapt to the positions of the points under the nose of different patients.

The plug rod positioning device is characterized in that plug rod positioning blocks 25 are fixedly arranged on two side plates of one of the outer canthus ear hole frame 11 and the lower canthus ear hole plane frame 21, plug rod perforation holes are coaxially formed in the two side plates of the outer canthus ear hole frame 11 and the lower canthus ear hole plane frame 21 and in the plug rod positioning blocks 25, the plug rod 12 can be axially and slidably inserted into the plug rod perforation holes, plug rod positioning threaded holes are further formed in the plug rod positioning blocks 25, plug rod locking screws 251 are movably screwed into the plug rod positioning threaded holes, and the plug rod locking screws 251 can tightly abut against the outer side walls of the circumferences of the plug rods 12 to fix the plug rod 12 and the plug rod positioning blocks 25. The earhole stopper rod 12 can slide in the stopper rod through hole to adapt to different head widths of patients, and is fixed by the stopper rod locking screw 251 after adjustment.

The two side plates of the outer canthus ear hole frame 11 are respectively fixedly provided with a hinge shaft positioning block 18, the two side plates of the outer canthus ear hole frame 11 and the hinge shaft positioning block 18 are coaxially provided with hinge shaft through holes, the hinge shaft positioning rod 13 is axially and slidably inserted into the hinge shaft through holes, the hinge shaft positioning block 18 is also provided with a hinge shaft positioning screw hole, the hinge shaft positioning screw hole is movably screwed with a hinge shaft locking screw 181, the hinge shaft locking screw 181 can tightly abut against the circumferential outer side wall of the hinge shaft positioning rod 13 to enable the hinge shaft positioning rod 13 to be fixedly positioned with the hinge shaft positioning block 18, the two side plates of the lower canthus ear hole plane frame 21 are respectively provided with an avoidance notch 26 for avoiding the hinge shaft positioning rod 13, the hinge shaft positioning rod 13 can move in the avoidance notch 26, one end of the shaft orbit plane frame 31 is also provided with the hinge shaft through hole, the hinge shaft through hole at one end of the shaft orbit plane frame 31 is sleeved outside one end of the hinge shaft positioning rod 13, the second positioning piece is a clamping nut 131 movably screwed at one end of the hinge shaft positioning rod 13, and the clamping nut 131 tightly abuts against the surface of the orbit plane frame 31 to realize the shaft positioning. The hinge shaft positioning rod 13 can slide in the hinge shaft through hole to adapt to the condylar ball shafts on dental technician jaw frames with different widths, and is fixed through the hinge shaft locking screw 181 after being adjusted.

The angle plate 4 under the nose root earhole nose is an arc-shaped plate taking the axis of the earhole plug rod 12 as the center of a circle, the angle plate 4 under the nose root earhole nose is concentrically provided with an arc-shaped hole 42, the first positioning piece is a knob screw 421 which can be slidably arranged in the arc-shaped hole 42 in a penetrating manner, the stud part of the knob screw 421 is in threaded connection with the side plate 11 of the outer canthus earhole frame, and the knob part of the knob screw 421 is tightly abutted against the surface of the angle plate 4 under the nose root earhole nose to realize clamping and positioning of the side plate 11 of the outer canthus earhole frame and the angle plate 4 under the nose root earhole nose.

The angle plate 4 of the angle of the nose inferior canthus is a circular arc plate, the center of the circular arc is the auricular hole, the center of the circular arc plate is provided with a circular arc hole 42, a knob screw 421 fixed on the side plate of the plane frame of the nose inferior canthus passes through the circular arc hole 42, the tail end of the knob screw 421 is screwed into a threaded hole on the side plate of the auricular hole frame 11 of the nose inferior canthus or a hand-screwed nut positioned outside the side plate of the auricular hole frame 11 of the nose inferior canthus, and the knob screw 421 is screwed to the position of the angle between the plane frame 21 of the nose inferior canthus and the plane frame of the auricular hole of the nose inferior canthus.

Claims (10)

1. An anatomical facebow body mechanism for complete denture repair, characterized in that: including the outer canthus of nose earhole plane frame subassembly (1), earhole plane frame subassembly under nose (2), axle orbit plane frame subassembly (3), the nose root earhole angle board of nose angle under nose (4), first setting element and second setting element, wherein:

The plane frame component of the outer canthus and the earhole comprises a outer canthus and the earhole frame (11), an earhole plug rod (12), a hinge shaft positioning rod (13) and a nose pad (14), wherein the outer canthus and the earhole frame are of a U-shaped frame structure formed by two side plates and a transverse plate, the earhole plug rod can be fixedly positioned on the two side plates of the outer canthus and the earhole frame, the two earhole plug rods can be respectively plugged into the earholes of a patient, the hinge shaft positioning rod can be fixedly arranged on the two side plates of the outer canthus and the earhole frame, the distance between the axis of the hinge shaft positioning rod and the axis of the earhole plug rod is 13mm, the hinge shaft positioning rod is closer to the face direction of the patient than the earhole plug rod, the nose pad can be fixedly arranged in the middle of the transverse plate of the outer canthus and the earhole frame parallel to the face of the patient, and the nose pad can be tightly attached to the surface of the root of the nose of the patient;

The under-the-nose earhole plane frame assembly comprises an under-nose earhole plane frame (21), an under-nose positioning rod (22) and a jaw positioning assembly (23), wherein the under-nose earhole plane frame is of a U-shaped frame structure formed by two side plates and a transverse plate, two side plates of the under-nose earhole plane frame are connected with two side plates of the under-nose outer canthus earhole frame in a connecting way through an earhole plug rod, two ends of the under-nose positioning rod can be fixedly connected with two side plates of the under-nose earhole plane frame respectively, the middle of the under-nose positioning rod can be pressed on an under-nose point of a patient, and the jaw positioning assembly for mounting a jaw can be fixedly mounted on the middle position of the transverse plate of the under-nose earhole plane frame;

The shaft orbit plane frame assembly comprises a shaft orbit plane frame (31), an orbit lower edge pointer (32) and a locking positioning piece (33), wherein one end of the shaft orbit plane frame is hinged on one side plate of the outer canthus ear hole frame through a hinge shaft positioning rod, one end of the orbit lower edge pointer can be rotatably arranged on the other end of the shaft orbit plane frame around a rotating shaft extending in the vertical direction, the other end of the orbit lower edge pointer can prop against the lowest point of the orbit lower edge of a patient, and one end of the orbit lower edge pointer and the other end of the shaft orbit plane frame can be fixedly positioned by the locking positioning piece;

The angle plates of the angle frames of the nose root earhole under the nose are fixedly arranged on two side plates of the plane frame of the nose earhole under the nose, a plurality of angle scales (41) are arranged on the angle plates of the angle frames of the nose root earhole under the nose, the angle scales are distributed by taking the earhole plug rod as the center of a circle, and the side plates of the angle frames of the nose root outer canthus earhole can be opposite to the angle scales on the angle plates of the angle frames of the nose root earhole under the nose to display the included angle between the frames of the nose root outer canthus earhole and the plane frame of the nose earhole under the nose;

The first locating piece can fix and locate the lateral plate of the outer canthus earhole frame and the lateral plate of the plane frame of the lower canthus earhole, and the second locating piece can fix and locate the lateral plate of the outer canthus earhole frame and one end of the plane frame of the shaft orbit.

2. The anatomical facebow mechanism for complete denture repair according to claim 1, wherein: a marking line (15) extending along the length direction of the marking line is arranged in the middle of the side plate of the outer canthus auricular hole frame, and the marking line and the angle scale on the angle plate of the angle of the lower canthus auricular hole of the nasion can be opposite to the angle used for displaying the angle between the outer canthus auricular hole frame and the plane frame of the lower canthus auricular hole.

3. The anatomical facebow mechanism for complete denture repair according to claim 1, wherein: the middle of the side plate of the outer canthus earhole frame is also provided with a hollowed first long strip-shaped hole (16) extending along the length direction of the side plate, and whether the outer canthus is positioned on the connecting line of the outer canthus earhole can be observed through the first long strip-shaped hole at the outer side of the side plate of the outer canthus earhole frame.

4. The anatomical facebow mechanism for complete denture repair according to claim 1, wherein: the nose support positioning device is characterized in that a nose support positioning block (17) is fixedly arranged in the middle of the transverse plate of the outer canthus earhole frame, a nose support positioning hole parallel to the lateral plate of the outer canthus earhole frame is formed in the transverse plate of the outer canthus earhole frame and the nose support positioning block, a nose support rod (141) is inserted in the nose support positioning hole in a sliding mode along the axial direction of the nose support positioning hole, the nose support is fixedly arranged at the end portion of one end of the nose support rod, a nose support rod positioning screw (171) is movably connected to the nose support positioning block in a threaded mode, and the end portion of the nose support positioning screw can extend into the nose support positioning hole and tightly support the outer circumferential surface of the nose support rod to fix and position the nose support positioning rod.

5. The anatomical facebow mechanism for complete denture repair according to claim 1, wherein: the utility model discloses a motor shaft socket, including the motor shaft socket plane frame, the motor shaft socket plane frame is equipped with on the motor shaft socket plane frame, be equipped with a rectangular shape regulation hole (321) that extends along its length direction on the motor shaft socket plane frame, locking locating piece is adjusting screw, the motor shaft socket plane frame other end is equipped with the U-shaped slot, motor shaft socket plane frame other end's U-shaped slot is interior to be inserted to one end, coaxial round hole and the screw hole of being equipped with respectively on the U-shaped slot both sides wall of motor shaft socket plane frame other end, adjusting screw's double-screw bolt passes round hole, rectangular shape regulation hole and finally with the screw hole spiro union, motor shaft socket plane frame other end's U-shaped slot both sides wall between can be closely pressed from both sides to one end.

6. The anatomical facebow mechanism for complete denture repair according to claim 1, wherein: horizontal bubbles (5) are arranged on the subnasal positioning rod and the shaft orbit plane frame.

7. The anatomical facebow mechanism for complete denture repair according to claim 1 or 6, characterized by: the two side plates of the plane frame of the under-nose earhole are respectively provided with a second long strip hole (24) extending along the length direction of the plane frame of the under-nose earhole, two long strip holes are respectively provided with two under-nose positioning rod locking screws (241) in a sliding manner, the under-nose positioning rod locking screws are respectively connected with the under-nose positioning rods in a threaded manner, and the heads of the under-nose positioning rod locking screws can tightly abut against the outer side surfaces of the two side plates of the plane frame of the under-nose earhole to realize locking positioning of the under-nose positioning rods.

8. The anatomical facebow mechanism for complete denture repair according to claim 1, wherein: the plug is characterized in that a plug positioning block (25) is fixedly arranged on two side plates of one of the outer canthus ear hole frame and the lower canthus ear hole plane frame, plug perforation holes are coaxially formed in the two side plates of the outer canthus ear hole frame and the lower canthus ear hole plane frame and the plug positioning block, the plug is axially and slidably inserted into the plug perforation holes, a plug positioning threaded hole is further formed in the plug positioning block, a plug locking screw (251) is movably screwed in the plug positioning threaded hole, and the plug locking screw can tightly abut against the outer side wall of the circumference of the plug to fix the plug and the plug positioning block.

9. The anatomical facebow mechanism for complete denture repair according to claim 1, wherein: the two side plates of the outer canthus ear hole frame are respectively fixedly provided with a hinge shaft positioning block (18), the two side plates of the outer canthus ear hole frame and the hinge shaft positioning blocks are coaxially provided with hinge shaft through holes, the hinge shaft positioning rod is axially and slidably inserted into the hinge shaft through holes, the hinge shaft positioning block is also provided with a hinge shaft positioning screw hole, the hinge shaft positioning screw hole is movably screwed with a hinge shaft locking screw (181), the hinge shaft locking screw can tightly abut against the outer side wall of the circumference of the hinge shaft positioning rod to enable the hinge shaft positioning rod to be fixedly positioned with the hinge shaft positioning block, the two side plates of the lower canthus ear hole plane frame are respectively provided with avoidance notches (26) for avoiding the hinge shaft positioning rod, the hinge shaft positioning rod can move in the avoidance notches, one end of the shaft socket plane frame is also provided with the hinge shaft through holes, the hinge shaft through holes at one end of the shaft socket plane frame are sleeved on the outer side of the axial end of the hinge shaft positioning rod, the second positioning piece is a clamping nut (131) movably screwed at one end of the shaft socket plane frame, and the clamping nut tightly abuts against the surface of the shaft socket plane frame to realize positioning of the shaft socket plane frame.

10. The anatomical facebow mechanism for complete denture repair according to claim 1, wherein: the angle plate under the nose root earhole nose is an arc-shaped plate taking the axis of the earhole plug rod as the center of a circle, arc-shaped holes (42) are concentrically formed in the angle plate under the nose root earhole nose, the first positioning piece is a knob screw (421) capable of being slidably arranged in the arc-shaped holes in a penetrating mode, the stud part of the knob screw is in threaded connection with the lateral plate of the earhole frame of the nose root outer canthus, and the knob part of the knob screw tightly abuts against the surface of the angle plate under the nose root earhole nose to clamp and position the lateral plate of the earhole frame of the nose root outer canthus and the angle plate under the nose root earhole nose.