A mandibular movement tracing jaw fixation clamp and method of use

Abstract

The present disclosure provides a mandibular movement tracing jaw fixing clamp and a method for using the same, and belongs to the technical field of oral instruments, comprising an intraosseous retention pin, a connecting piece and an extraoral arch, one end of the intraosseous retention pin is arranged in the mandible, and the other end is fixedly connected with the extraoral arch through the connecting piece. The present disclosure realizes stable clamping of the mandible of a patient with deep overjet or edentulous jaw during mandibular movement tracing by arranging the intraosseous retention pin and fixedly connecting the connecting piece with the extraoral arch, and the intraosseous retention pin and the whole device are not disturbed by the upper and lower teeth during movement, meeting the requirements of the sensor during information collection.

Description

TECHNICAL FIELD

[0001] The present disclosure belongs to the technical field of oral instruments, and particularly relates to a mandibular movement trajectory tracing jawbone fixing clamp and a use method thereof. BACKGROUND

[0002] In the process of making an oral prosthesis, data of mandibular movement is needed, and in clinical practice, electronic face bows and mandibular movement trajectory tracers are usually used to collect the corresponding data. During the data collection process, the mandibular data sensor needs to be firmly positioned on the mandible, so that the mandibular movement trajectory signal can be transmitted in real time during the mandibular movement.

[0003] The sensor needs to meet the following two points during information collection: 1. firmly fixed on the dentition or alveolar bone; 2. no contact with the maxillary teeth during mandibular movement, and no interference with the mandibular movement.

[0004] At present, a jaw fork made of a finished preformed aluminum composite magnetic metal material is usually used to fix the sensor by being adhered and mechanically embedded on the labial surface of the mandibular dentition through temporary crown adhesive, and the jaw fork is fixed by magnetic contact with the sensor.

[0005] However, this method cannot be used for edentulous patients. At present, for edentulous patients, the jaw fork of an extraoral clamp is usually connected with a wax dam that is made in advance and personalized, and the wax dam is adhered to the mandibular mucosa through mucosal adhesive, so as to achieve the purpose of clamping the mandibular bone. However, the pre-made personalized wax dam needs to increase the number of patient visits and costs, and for patients with low and flat alveolar ridge top, the stability of the wax dam on the mucosa is poor, and it cannot be ensured that there is no relative displacement between the clamp and the mandibular bone during the mandibular movement, and the accuracy of the mandibular movement data collection cannot be ensured.

[0006] For patients with deep overbite, there is not enough space between the upper teeth and the labial surface of the mandibular dentition to allow the fixation of the jaw fork, which greatly restricts the collection of data by the mandibular movement trajectory tracer for patients with deep overbite. SUMMARY

[0007] In view of the defects or deficiencies in the prior art, the present disclosure provides a mandibular movement trajectory tracing jawbone fixing clamp and a use method thereof, which can realize the clamping of the mandibular bone during the mandibular movement trajectory tracing of patients with deep overbite or edentulous jaw, and meet the requirements of the sensor during information collection.

[0008] To achieve the above-mentioned purpose, the present disclosure adopts the following technical solutions:

[0009] In a first aspect, the embodiments of the present disclosure provide a mandibular movement trajectory tracing jawbone fixing clamp, which comprises an intraosseous retention pin, a connecting piece and an extraoral arch. One end of the intraosseous retention pin is fixed in the mandibular bone, and the other end is fixedly connected with the extraoral arch through the connecting piece.

[0010] Further, the intraosseous anchor includes an intraosseous segment and an extraosseous segment arranged at two ends of the intraosseous anchor respectively, and the outer surface of the intraosseous segment and the outer surface of the extraosseous segment are provided with external threads.

[0011] Further, the middle part of the intraosseous anchor is provided with a clamping segment, the clamping segment is hexagonal, and the outer surface of the intraosseous anchor between the clamping segment and the intraosseous segment is smooth.

[0012] Further, the connecting piece includes a connecting plate and a connecting column, the connecting plate and the connecting column are arranged at 90 degrees, and the top of the connecting plate is provided with a reserved hole.

[0013] Further, the connecting column is fixed at the bottom of the connecting plate, a stop piece is arranged on the connecting column, an external thread is further arranged at the end of the connecting column away from the connecting plate, and the tail end of the external thread extends to the stop piece.

[0014] Further, the extraoral arch includes a jaw bone support, a support column and a chin support, and the two ends of the jaw bone support are connected and fixed with the two ends of the chin support through the support column.

[0015] Further, the jaw bone support includes an intraoral support and an extraoral support, the intraoral support is arc-shaped, and the extraoral support is provided with two ends fixedly connected with the two ends of the intraoral support.

[0016] Further, a groove is arranged in the middle part of the intraoral support and penetrates the intraoral support along the length direction of the intraoral support.

[0017] Further, a first connecting hole is arranged at the end of the extraoral support away from the intraoral support, a second connecting hole is arranged at the two ends of the chin support, and the length of the jaw bone support is the same as that of the chin support.

[0018] In the second aspect, the disclosure further provides a use method of the jaw bone fixing clamp, which utilizes the mandibular movement trajectory tracing jaw bone fixing clamp as described above, and includes the following steps:

[0019] First, the two intraosseous anchors are placed in the mandible of the patient by clamping the clamping segment on the intraosseous anchor.

[0020] The connecting piece is sleeved on the extraosseous segment of the intraosseous anchor through the reserved hole on the connecting plate, the nut is screwed on the extraosseous segment, the connecting plate is located between the nut and the clamping segment, and the nut is locked and fixed.

[0021] The connecting column on the connecting piece is inserted into the groove of the jaw bone support, the nut is screwed on the connecting column, the jaw bone support is located between the nut and the stop piece, and the nut is locked and fixed.

[0022] Supporting columns are arranged at both ends of the jaw bones, and the supporting columns are connected with the chin support;

[0023] The distance between the jaw bone support and the chin support is adjusted by adjusting the nuts at both ends of the supporting columns, so that the distance between the two meets the thickness of the patient's bone body;

[0024] The mandibular movement trajectory is recorded by connecting the connecting piece on the chin support with the sensor.

[0025] Compared with the prior art, the present disclosure has the following beneficial effects:

[0026] The present disclosure achieves stable clamping of the mandibular bone during mandibular movement trajectory recording of patients with deep overbite or edentulous jaws by arranging the intraosseous retention nail and fixing the connecting piece with the extraoral arch, and the intraosseous retention nail and the entire device are not disturbed by the upper and lower teeth during movement, meeting the requirements of the sensor during information collection. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is the front view of the fixed clamp in the embodiment of the present disclosure;

[0028] Figure 2 is a structure diagram of the intraosseous retention nail in the embodiment of the present disclosure;

[0029] Figure 3 is a side view of the connecting piece in the embodiment of the present disclosure;

[0030] Figure 4 is a top view of the jaw bone support in the embodiment of the present disclosure;

[0031] 1, connecting piece; 2, intraosseous section; 3, extraosseous section; 4, clamping section; 5, connecting plate; 6, connecting column; 7, reserved hole; 8, stop piece; 9, jaw bone support; 10, supporting column; 11, chin support; 12, intraoral support; 13, extraoral support; 14, groove; 15, first connecting hole. DETAILED DESCRIPTION

[0032] The present disclosure will be further described below in conjunction with the drawings and embodiments.

[0033] Part of the term explanation: The terms "mounting", "connecting", "connecting", "fixing" and the like in the present disclosure should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the internal connection of two elements, or the interaction relationship between two elements, for those skilled in the art, the specific meaning of the above terms in the present disclosure can be understood according to the specific circumstances.

[0034] Example one

[0035] One typical embodiment of the present disclosure is shown in Figure 1 A mandibular movement tracing jawbone fixing clamp, comprising an endosseous anchor, a connecting plate 1 and an extraoral arch, the extraoral arch is connected with the endosseous anchor through the connecting plate 1.

[0036] The endosseous anchor is cylindrical as a whole, comprising an endosseous segment 2 and an extraosseous segment 3, the endosseous segment 2 is arranged at one end of the endosseous anchor, the outer surface of which is provided with external threads, through which the endosseous anchor can be fixed on the mandibular bone, the extraosseous segment 3 is arranged at the other end of the endosseous anchor, the middle part of the endosseous anchor is provided with a clamping segment 4, which is hexagonal, and can be clamped by a straight type force wrench, the outer surface of the endosseous anchor between the clamping segment 4 and the endosseous segment 2 is smooth. Figure 2 The outer surface of the extraosseous segment 3 is provided with external threads, through which the connecting plate is placed between the nut and the clamping segment, and the connecting plate 1 is fixed on the extraosseous segment 3 of the endosseous anchor by the nut.

[0037] The connecting plate 1 comprises a connecting plate 5 and a connecting column 6, as shown in

[0038] The connecting plate 5 is used for fixed connection with the endosseous anchor, and the connecting column 6 is used for fixed connection with the extraoral arch, the top of the connecting plate 5 is provided with a reserved hole 7, the diameter of which is the same as that of the endosseous anchor, the connecting plate 5 is sleeved on the threads of the extraosseous segment 3 of the endosseous anchor through the reserved hole 7, and is locked and fixed by the nut and the clamping segment. The bottom of the connecting plate 5 is fixedly connected with the connecting column 6, the connecting plate 5 and the connecting column 6 are arranged at 90 degrees, the connecting column 6 is cylindrical, a stop piece 8 is further arranged on the connecting column 6, the stop piece 8 is annular, the inner diameter of which is the same as that of the connecting column 6, the stop piece 8 is sleeved on the connecting column 6 and is fixedly connected with the outer surface of the connecting column 6, the end of the connecting column 6 away from the connecting plate 5 is further provided with external threads, the tail end of which extends to the stop piece 8. Figure 3 The extraoral arch comprises a jawbone support 9, a supporting column 10 and a chin support 11, as shown in

[0039] Figure 1 Figure 4 ​​As shown, the jaw bone support 9 comprises an intraoral support 12 and an extraoral support 13, the intraoral support 12 is arc-shaped, and the arc degree can be adjusted according to the patient's mandibular arch in use, so that it is more suitable for the patient's mandibular contour, a groove 14 is formed in the middle of the intraoral support 12, the groove 14 is arranged along the length direction of the intraoral support 12 and penetrates through the intraoral support 12, the width of the groove 14 is greater than the diameter of the connecting column 6 and less than the diameter of the stop piece 8, the connecting column 6 is inserted into the groove 14, and the stable connection between the jaw bone support 9 and the connecting piece 1 is completed by using the nut and the stop piece 8.

[0040] The extraoral support 13 is provided with two, which are respectively fixedly connected with the two ends of the intraoral support 12, and the end of the extraoral support 13 away from the intraoral support 12 is provided with a first connecting hole 15.

[0041] The chin support 11 is used to support the chin of the patient's lower jaw, which can be closely combined with the chin of the patient's lower jaw, the upper surface of the chin support 11 is provided with a rubber soft lining, which can improve the comfort of the patient wearing, the two ends of the chin support 11 are provided with second connecting holes, the length of the jaw bone support 9 and the chin support 11 is the same, and the two ends of the jaw bone support 9 and the two ends of the chin support 11 are connected and fixed through the support column 10.

[0042] The support column 10 is cylindrical, and the two ends of the support column 10 are provided with threads, the two ends of the support column 10 are inserted into the first connecting hole 15 and the second connecting hole respectively, and nuts are arranged on the two sides of the first connecting hole 15 and the second connecting hole, so as to complete the connection between the jaw bone support 9 and the chin support 11, in addition, the distance between the jaw bone support 9 and the chin support 11 can be adjusted by adjusting the nuts on the two sides of the first connecting hole 15 and the second connecting hole, so as to adapt to the bone thickness of different patients.

[0043] The chin support 11 is also welded with a sensor connecting piece, which can realize magnetic docking with the sensor.

[0044] Example two

[0045] The embodiment provides a use method of a jaw bone fixing clamp, which utilizes the jaw bone fixing clamp for lower jaw movement trajectory tracing as described in example one, and comprises the following steps:

[0046] Firstly, the two endosseous anchorage pins are placed in the patient's lower jaw by clamping the clamping sections on the endosseous anchorage pins;

[0047] The connecting piece is sleeved on the extracorporeal section of the endosseous anchorage pin through the reserved hole on the connecting plate, the nut is screwed on the extracorporeal section, the connecting plate is located between the nut and the clamping section, and the locking and fixing are completed through the nut;

[0048] The connecting column on the connecting piece is inserted into the groove of the jaw support, and the nut is screwed on the connecting column, the jaw support is located between the nut and the stop piece, and the jaw support is locked and fixed through the nut;

[0049] Support columns are arranged at both ends of the jaw, and the support columns are connected with the chin support;

[0050] The distance between the jaw support and the chin support is adjusted by adjusting the nuts at both ends of the support column, so that the distance between the two meets the thickness of the patient's bone body;

[0051] The connecting piece on the chin support is connected with the sensor to perform mandibular movement trajectory tracing.

[0052] The above only describes the preferred embodiments of the present disclosure and is not intended to limit the present disclosure. Those skilled in the art can make various modifications and changes to the present disclosure. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present disclosure shall be included in the protection scope of the present disclosure.

Claims

1. A mandibular movement tracing jaw fixation clamp characterized by, The application relates to a device for fixing a lower jaw, which comprises an intraosseous anchor, a connecting plate and an extraoral arch. The connecting plate comprises a connecting plate and a connecting column, and the connecting plate and the connecting column are arranged at an angle of 90 degrees. The extraoral arch comprises a jaw bone support, a supporting column and a chin support. The jaw bone support comprises an intraoral support and two extraoral supports. The intraoral support is provided with a groove in the middle. The extraoral support is provided with a first connecting hole at the end far from the intraoral support.

2. A mandibular movement tracing jaw fixation clamp as claimed in claim 1, characterized in that The chin support is provided with a second connecting hole at the two ends.

3. A mandibular movement tracing jaw fixation clamp as in claim 2, wherein, The intraosseous anchor comprises an intraosseous section and an extraosseous section.

4. A mandibular movement tracing jaw fixation clamp as in claim 1, wherein, The intraosseous section and the extraosseous section are provided with external threads. The intraosseous anchor is provided with a clamping section in the middle. The clamping section is a hexagonal prism. The connecting column is fixed to the bottom of the connecting plate. The connecting column is provided with a stopper. The connecting column is provided with external threads at the end far from the connecting plate. The external threads extend to the stopper.

Images