Oral and maxillofacial bone block repositioner and use method thereof

Abstract

The present invention relates to the field of medical equipment, and in particular to an oral and maxillofacial bone block repositioner and a method for using the same. The device comprises: a first fixing part comprising a shoulder rest, a shoulder rest fixing belt, a connector, a fixing ring, a first fixing module, a second fixing module and a third fixing module for completing the outer side support of the oral and maxillofacial bone block; a second fixing part for completing the inner side support of the oral and maxillofacial bone block; a load monitoring module; a data entry module for entering user facial image information; a control module for determining whether the size of a support load meets a preset standard according to a repositioning characteristic coefficient, and determining whether a mode of the support load meets a preset standard according to a contour overlap change rate, thereby realizing intelligent monitoring of oral and maxillofacial bone block repositioning and improving the safety of oral and maxillofacial bone block repositioning.

Description

Technical Field

[0001] The present invention relates to the field of medical equipment, and in particular to an oral and maxillofacial bone block repositioner and a use method thereof. Background Art

[0002] Maxillofacial injuries are mostly caused by work-related injuries, sports injuries, traffic accidents and accidental injuries in life. The maxillofacial area has rich blood circulation, is connected to the brain above and the neck below, and the maxillofacial bones are irregular in shape. Therefore, in the process of repairing maxillofacial injuries, there are often problems such as difficulty in reduction and inability to fix open fractures together, which leads to abnormal healing and affects the appearance.

[0003] Chinese patent publication number: CN203506942U, discloses an airbag type jaw fracture reducer. Its main technical features are: including a belt body that matches the shape of the human head, the upper end of the belt body is provided with a connecting hook and loop, the lower end of the belt body is provided with an airbag area with an inflation valve at the position that matches the position of the human jaw, and the inflation valve is connected to the inflation ball through an air guide tube; the airbag area is in a grid shape; the airbag area includes a lifting airbag area and a lateral pressure retention airbag area, and the pressure of the lifting airbag area and the lateral pressure retention airbag area are different; the airbag area is connected to the belt body as a whole; the airbag area is movably connected to the belt body; the inflation valve is a one-way valve. It can be seen that the technical solution does not require necessary detection and adjustment means, resulting in poor repair accuracy and low safety. Summary of the invention

[0004] To this end, the present invention provides an oral and maxillofacial bone block repositioner and a method of using the same, so as to overcome the fact that the prior art does not take into account the facial deformation caused by maxillofacial bone damage and the facial deformation during the repair process, thereby resulting in low accuracy and poor safety in repositioning of oral and maxillofacial bone blocks.

[0005] To achieve the above objectives, the present invention provides an oral and maxillofacial bone block reducer, comprising:

[0006] A first fixing part, which is used to complete the outer side support of the oral and maxillofacial bone block, includes a shoulder support, a shoulder support fixing belt, a connector, a fixing ring, a first fixing module, a second fixing module and a third fixing module;

[0007] The shoulder rest is in a C shape with the opening downward;

[0008] The shoulder support fixing belt completes the fixing of the shoulder support;

[0009] The connector includes a plurality of connecting rods, one end of each connecting rod is connected to the upper part of the shoulder support, and the other end of the connecting rod is connected to the fixing ring;

[0010] The fixing ring passes through the first fixing mold group, the second fixing mold group and the third fixing mold group respectively, and the first fixing mold group, the second fixing mold group and the third fixing mold group are slidably connected along the fixing ring to provide support for the corresponding position of the outer side of the oral and maxillofacial bone block, wherein the longitudinal section of the fixing ring is an ellipse;

[0011] The second fixing part is used to complete the inner side support of the oral and maxillofacial bone block, including a cervical vertebra fixing sleeve connected to the shoulder support to stabilize the cervical vertebra, the cervical vertebra fixing sleeve is provided with a vertical opening, an inner lining arranged on the inner wall of the cervical vertebra fixing sleeve, a support seat at the upper end of the outer wall of the cervical vertebra fixing sleeve, and an inflatable support cushion arranged on the support seat;

[0012] The load monitoring module includes a first load acquisition unit for collecting the outer supporting load of the first fixed module and the oral and maxillofacial bone block, a second load acquisition unit for collecting the outer supporting load of the second fixed module and the oral and maxillofacial bone block, a third load acquisition unit for collecting the outer supporting load of the third fixed module and the oral and maxillofacial bone block, and a fourth load acquisition unit for collecting the inner supporting load of the inflatable support cushion and the oral and maxillofacial bone block;

[0013] A data entry module, which is used to enter the user's facial image information, the facial image information including the facial image information before reset and the facial image information to be reset;

[0014] A control module, which is respectively connected to the data entry module, the load monitoring module, the first fixed module, the second fixed module, the third fixed module and the inflatable support cushion, and is used to determine whether the size of the support load meets the preset standard according to the reset characteristic coefficient, and to determine whether the pattern of the support load meets the preset standard according to the contour overlap change rate.

[0015] Further, the first fixed module comprises a first sliding seat arranged on the fixed ring, a first fixed handle for fixing the first sliding seat on the fixed ring, a first connecting rod arranged on the first sliding seat, a first supporting seat arranged on the top end of the first connecting rod, a supporting adjustment unit arranged on the first supporting seat, and a first strip-shaped supporting pad arranged at one end of the supporting adjustment unit away from the first supporting seat;

[0016] The second fixed module comprises a second sliding seat arranged on the fixed ring, a second fixed handle for fixing the second sliding seat on the fixed ring, a second connecting rod arranged on the second sliding seat, a second supporting seat arranged on the top of the second connecting rod, and a supporting adjustment unit arranged on the second supporting seat, wherein a second strip-shaped supporting pad is arranged at one end of the supporting adjustment unit away from the second supporting seat;

[0017] The third fixed module includes a third sliding seat arranged on the fixing ring, a third fixed handle for fixing the third sliding seat on the fixing ring, a third connecting rod arranged on the third sliding seat, a third supporting seat arranged at the top end of the third connecting rod, and a supporting adjustment unit arranged on the third supporting seat, wherein a V-shaped supporting pad is arranged at one end of the supporting adjustment unit away from the third supporting seat.

[0018] Furthermore, the support adjustment unit includes an airbag, an air supply pipe connected to the airbag, and an air pump for inflating the airbag.

[0019] Furthermore, the control module determines whether the size of the support load meets the preset standard according to the reset characteristic coefficient, wherein:

[0020] If the reset characteristic coefficient is less than the preset reset characteristic coefficient, the control module determines that the size of the support load meets the preset standard according to the reset characteristic coefficient, and uses the preset initial loading load to complete the support loading of the first fixed module, the second fixed module, the third fixed module and the inflatable support cushion;

[0021] If the reset characteristic coefficient is greater than or equal to the preset reset characteristic coefficient, the control module determines that the size of the support load does not meet the preset standard based on the reset characteristic coefficient, and reduces the preset initial loading load to a corresponding value based on the difference between the reset characteristic coefficient and the preset reset characteristic coefficient, and completes the support loading of the first fixed module, the second fixed module, the third fixed module and the inflatable support cushion.

[0022] Furthermore, the resetting characteristic coefficient is determined by the overlap ratio between the contour of the user's facial image to be relocated and the contour of the facial image before relocation, and the maximum distance between the contour point of the user's facial image to be relocated and the corresponding point of the contour of the facial image before relocation.

[0023] Furthermore, the reduction amplitude of the preset initial loading load is positively correlated with the reset difference, wherein the reset difference is the difference between the reset characteristic coefficient and the preset reset characteristic coefficient.

[0024] Furthermore, the control module determines whether the mode of supporting the load meets the preset standard according to the profile overlap change rate, wherein:

[0025] If the contour overlap change rate is less than the preset contour overlap change rate, the control module determines that the support load mode does not meet the preset standard, and switches the constant load to the alternating load to complete the support loading of the first fixed module, the second fixed module, the third fixed module and the inflatable support cushion, wherein the maximum value of the alternating load is the constant load before the switching, and the minimum value of the alternating load is equal to 3 / 4 of the constant load before the switching;

[0026] If the contour overlap change rate is greater than or equal to the preset contour overlap change rate, the control module determines that the support load mode meets the preset standard, and uses a constant load to complete the support loading of the first fixed module, the second fixed module, the third fixed module and the inflatable support cushion;

[0027] The contour overlap change rate is the absolute value of the change in the overlap ratio between the contour of the user's facial image to be reset and the contour of the facial image before reset within the first preset time period.

[0028] Further, the control module corrects the frequency of the alternating load according to the difference between a preset change rate threshold and a profile coincidence change rate after the alternating load is loaded in response to the first preset condition;

[0029] The first preset condition is that the control module completes the support loading of the first fixed module, the second fixed module, the third fixed module and the inflatable support cushion after using the alternating load and the contour overlap change rate after loading is less than the preset change rate threshold.

[0030] Furthermore, the correction amplitude of the frequency of the alternating load is positively correlated with the correction difference, wherein the correction difference is the difference between a preset change rate threshold and the profile coincidence change rate after the alternating load is loaded.

[0031] On the other hand, the present invention also provides a method for using the oral and maxillofacial bone block reducer, comprising:

[0032] Use the shoulder support strap to fix the shoulder support to the user's shoulder;

[0033] Use a cervical spine fixation sleeve to fix the user's cervical spine;

[0034] Fix the first fixed module, the second fixed module and the third fixed module at corresponding positions on the fixed ring;

[0035] Enter the user's facial image information;

[0036] Determine whether the size of the support load meets the preset standard according to the reset characteristic coefficient;

[0037] The profile overlap change rate is used to determine whether the support load pattern meets the preset standard.

[0038] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention realizes intelligent monitoring of oral and maxillofacial bone block reduction and improves the safety of oral and maxillofacial bone block reduction by providing a shoulder rest, a shoulder rest fixing belt, a connector, a fixing ring, a first fixing module, a second fixing module and a third fixing module to complete the first fixing part for the lateral support of the oral and maxillofacial bone block; a second fixing part for the medial support of the oral and maxillofacial bone block; a load monitoring module; a data entry module for inputting user facial image information; a control module for determining whether the size of the support load meets the preset standard according to the reset characteristic coefficient, and determining whether the mode of the support load meets the preset standard according to the contour overlap change rate.

[0039] Furthermore, the present invention determines the reduction characteristic coefficient by the overlap ratio between the contour of the user's facial image to be reduced and the contour of the facial image before reduction, and the maximum distance between the points of the contour of the user's facial image to be reduced and the corresponding points of the contour of the facial image before reduction, and determines whether the size of the supporting load meets the preset standard based on the reduction characteristic coefficient, thereby optimizing the addition of the load of the oral and maxillofacial bone block reducer.

[0040] Furthermore, when the contour overlap change rate is less than a preset contour overlap change rate, the present invention switches the applied constant load to an alternating load, thereby reducing the secondary damage caused by clamping to the bone block reduction while ensuring the stability of the bone block reduction, thereby improving the safety of the oral and maxillofacial bone block reduction. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 It is a schematic diagram of the structure of the oral and maxillofacial bone block reducer according to an embodiment of the present invention;

[0042] Figure 2 This is a schematic structural diagram of a support and adjustment unit of an oral and maxillofacial bone block reducer according to an embodiment of the present invention;

[0043] Figure 3 This is a flow chart of an embodiment of the present invention for determining whether the size of the supporting load meets the preset standard according to the reset characteristic coefficient;

[0044] Figure 4 This is a flow chart of an embodiment of the present invention for determining whether a supporting load mode meets a preset standard according to a profile overlap change rate;

[0045] In the figure: 11, shoulder rest; 12, shoulder rest fixing belt; 13, connector; 14, fixing ring; 21, cervical vertebra fixing sleeve; 22, vertical opening; 24, support seat; 25, inflatable support cushion; 151, first sliding seat; 152, first fixed handle; 153, first connecting rod; 154, first support seat; 155, support adjustment unit; 156, first strip support cushion; 161, second sliding seat; 163, second connecting rod; 164, second support seat; 165, second strip support cushion; 171, third sliding seat; 173, third connecting rod; 174, third support seat; 175, V-shaped support cushion; 1551, airbag; 1552, air pipe. DETAILED DESCRIPTION

[0046] In order to make the objects and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with embodiments; it should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0047] It should be pointed out that the data in this embodiment are obtained by comprehensive analysis and evaluation of the historical operation data of the control module of the present invention three months before the current operation and the corresponding historical operation results.

[0048] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0049] See also Figure 1 , Figure 2 , Figure 3 as well as Figure 4 As shown, they are respectively a schematic diagram of the structure of the oral and maxillofacial bone block reducer according to an embodiment of the present invention; a schematic diagram of the structure of the support adjustment unit of the oral and maxillofacial bone block reducer according to an embodiment of the present invention; a flow chart of determining whether the size of the support load meets the preset standard according to the reduction characteristic coefficient according to an embodiment of the present invention; and a flow chart of determining whether the pattern of the support load meets the preset standard according to the contour overlap change rate according to an embodiment of the present invention.

[0050] An embodiment of the present invention provides an oral and maxillofacial bone block repositioner, comprising:

[0051] The first fixing part is used to complete the outer side support of the oral and maxillofacial bone block, and includes a shoulder support 11, a shoulder support fixing belt 12, a connector 13, a fixing ring 14, a first fixing module, a second fixing module and a third fixing module;

[0052] The shoulder rest 11 is in a C shape with its opening downward;

[0053] The shoulder support fixing belt completes the fixing of the shoulder support 11;

[0054] The connector 13 includes a plurality of connecting rods, one end of each connecting rod is connected to the upper portion of the shoulder support 11, and the other end of the connecting rod is connected to the fixing ring 14;

[0055] The fixing ring 14 passes through the first fixing mold group, the second fixing mold group and the third fixing mold group respectively, and the first fixing mold group, the second fixing mold group and the third fixing mold group are slidably connected along the fixing ring 14 to provide support for the corresponding position of the outer side of the oral and maxillofacial bone block, wherein the longitudinal section of the fixing ring 14 is an ellipse;

[0056] The second fixing part is used to complete the inner side support of the oral and maxillofacial bone block, including a cervical vertebra fixing sleeve 21 connected to the shoulder support 11 to stabilize the cervical vertebra, the cervical vertebra fixing sleeve 21 is provided with a vertical opening 22, a liner arranged on the inner wall of the cervical vertebra fixing sleeve 21, a support seat 24 at the upper end of the outer wall of the cervical vertebra fixing sleeve 21, and an inflatable support cushion 25 arranged on the support seat 24;

[0057] The load monitoring module includes a first load acquisition unit for collecting the outer supporting load of the first fixed module and the oral and maxillofacial bone block, a second load acquisition unit for collecting the outer supporting load of the second fixed module and the oral and maxillofacial bone block, a third load acquisition unit for collecting the outer supporting load of the third fixed module and the oral and maxillofacial bone block, and a fourth load acquisition unit for collecting the inner supporting load of the inflatable support cushion 25 and the oral and maxillofacial bone block;

[0058] A data entry module, which is used to enter the user's facial image information, the facial image information including the facial image information before reset and the facial image information to be reset;

[0059] A control module, which is respectively connected to the data entry module, the load monitoring module, the first fixed module, the second fixed module, the third fixed module and the inflatable support cushion 25, is used to determine whether the size of the support load meets the preset standard according to the reset characteristic coefficient, and to determine whether the pattern of the support load meets the preset standard according to the contour overlap change rate.

[0060] Specifically, the first fixing module includes a first sliding seat 151 arranged on the fixing ring 14, a first fixing handle 152 for fixing the first sliding seat 151 on the fixing ring 14, a first connecting rod 153 arranged on the first sliding seat 151, a first supporting seat 154 is arranged on the top of the first connecting rod 153, and a supporting adjustment unit 155 is arranged on the first supporting seat 154, and a first strip-shaped supporting pad 156 is arranged at one end of the supporting adjustment unit 155 away from the first supporting seat 154;

[0061] The second fixing module comprises a second sliding seat 161 arranged on the fixing ring 14, a second fixing handle for fixing the second sliding seat 161 on the fixing ring 14, a second connecting rod 163 arranged on the second sliding seat 161, a second supporting seat 164 arranged on the top of the second connecting rod 163, a supporting adjustment unit 155 arranged on the second supporting seat 164, and a second strip-shaped supporting pad 165 arranged at one end of the supporting adjustment unit 155 away from the second supporting seat 164;

[0062] The third fixed module includes a third sliding seat 171 arranged on the fixed ring 14, a third fixed handle for fixing the third sliding seat 171 on the fixed ring 14, a third connecting rod 173 arranged on the third sliding seat 171, a third supporting seat 174 is arranged on the top of the third connecting rod 173, and a support adjustment unit 155 is arranged on the third supporting seat 174, and a V-shaped support pad 175 is arranged on the end of the support adjustment unit 155 away from the third supporting seat 174.

[0063] Specifically, the support adjustment unit 155 includes an airbag 1551 , an air delivery pipe 1552 connected to the airbag 1551 , and an air pump for inflating the airbag 1551 .

[0064] Specifically, the control module determines whether the size of the support load meets the preset standard according to the reset characteristic coefficient, wherein:

[0065] If the reset characteristic coefficient is less than the preset reset characteristic coefficient, the control module determines that the size of the support load meets the preset standard 0.82 according to the reset characteristic coefficient, and uses the preset initial loading load to complete the support loading of the first fixed module, the second fixed module, the third fixed module and the inflatable support cushion;

[0066] If the reset characteristic coefficient is greater than or equal to the preset reset characteristic coefficient, the control module determines that the size of the support load does not meet the preset standard according to the reset characteristic coefficient, and reduces the preset initial loading load to a corresponding value according to the difference between the reset characteristic coefficient and the preset reset characteristic coefficient, and completes the support loading of the first fixed module, the second fixed module, the third fixed module and the inflatable support cushion;

[0067] The preset initial loading load is generally 4.5N-5.0N. In this embodiment, the preset initial loading load is set to 4.8N.

[0068] Specifically, the reset characteristic coefficient is calculated by the following formula:

[0069]

[0070] In the formula, F represents the reset feature coefficient, α represents the contour influence factor, α is set to 0.35, S represents the overlap ratio between the contour of the user's facial image to be reset and the contour of the facial image before reset, St is the contour overlap ratio threshold, and St is set to 35.30%; β represents the deformation influence factor, β is set to 0.65, D is the maximum distance between the contour point of the user's facial image to be reset and the corresponding point of the contour of the facial image before reset, Dt is the deformation threshold, and Dt is set to 5.20mm.

[0071] Specifically, the reduction amplitude of the preset initial loading load is positively correlated with the reset difference, wherein the reset difference is the difference between the reset characteristic coefficient and the preset reset characteristic coefficient. The positive correlation can be a linear correlation, and the slope of the linear correlation is not specifically limited. It only needs to satisfy that the larger the reset difference, the greater the reduction amplitude of the preset initial loading load.

[0072] Specifically, the control module determines whether the mode of supporting the load meets the preset standard according to the profile overlap change rate, wherein:

[0073] If the contour overlap change rate is less than the preset contour overlap change rate of 3.2% / h, the control module determines that the support load mode does not meet the preset standard, and switches the constant load to the alternating load to complete the support loading of the first fixed module, the second fixed module, the third fixed module and the inflatable support cushion, wherein the maximum value of the alternating load is the constant load before the switching, and the minimum value of the alternating load is equal to 3 / 4 of the constant load before the switching;

[0074] If the contour overlap change rate is greater than or equal to the preset contour overlap change rate, the control module determines that the support load mode meets the preset standard, and uses a constant load to complete the support loading of the first fixed module, the second fixed module, the third fixed module and the inflatable support cushion. It can be understood that the constant load is a preset initial loading load of 4.8N;

[0075] The contour overlap change rate is the absolute value of the change in the overlap ratio between the contour of the user's facial image to be reset and the contour of the facial image before reset within the first preset time period of 2 hours.

[0076] Specifically, the control module corrects the frequency of the alternating load according to the difference between a preset change rate threshold and a profile coincidence change rate after the alternating load is loaded in response to the first preset condition;

[0077] The first preset condition is that the control module completes the supporting loading of the first fixed module, the second fixed module, the third fixed module and the inflatable support cushion after using the alternating load and the contour overlap change rate after loading is less than the preset change rate threshold of 2.8% / h.

[0078] Specifically, the correction amplitude of the frequency of the alternating load is positively correlated with the correction difference, wherein the correction difference is the difference between a preset change rate threshold and the contour coincidence change rate after the alternating load is loaded. It can be understood that the larger the correction difference, the larger the correction amplitude of the frequency of the alternating load. The positive correlation can be a linear positive correlation, and the slope of the linear positive correlation is not specifically limited, and can also be a nonlinear positive correlation.

[0079] The method for using the oral and maxillofacial bone block repositioner according to the embodiment of the present invention is characterized by comprising:

[0080] Use the shoulder support strap to fix the shoulder support to the user's shoulder;

[0081] Use a cervical spine fixation sleeve to fix the user's cervical spine;

[0082] Fix the first fixed module, the second fixed module and the third fixed module at corresponding positions on the fixed ring;

[0083] Enter the user's facial image information;

[0084] Determine whether the size of the support load meets the preset standard according to the reset characteristic coefficient;

[0085] The profile overlap change rate is used to determine whether the support load pattern meets the preset standard.

[0086] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

[0087] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An oral and maxillofacial bone block reducer, characterized in that: include: A first fixing part, which is used to complete the outer side support of the oral and maxillofacial bone block, includes a shoulder support, a shoulder support fixing belt, a connector, a fixing ring, a first fixing module, a second fixing module and a third fixing module; The shoulder rest is in a C shape with the opening downward; The shoulder support fixing belt completes the fixing of the shoulder support; The connector includes a plurality of connecting rods, one end of each connecting rod is connected to the upper part of the shoulder support, and the other end of the connecting rod is connected to the fixing ring; The fixing ring passes through the first fixing mold group, the second fixing mold group and the third fixing mold group respectively, and the first fixing mold group, the second fixing mold group and the third fixing mold group are slidably connected along the fixing ring to provide support for the corresponding position of the outer side of the oral and maxillofacial bone block, wherein the longitudinal section of the fixing ring is an ellipse; The second fixing part is used to complete the inner side support of the oral and maxillofacial bone block, including a cervical vertebra fixing sleeve connected to the shoulder support to stabilize the cervical vertebra, the cervical vertebra fixing sleeve is provided with a vertical opening, an inner lining arranged on the inner wall of the cervical vertebra fixing sleeve, a support seat at the upper end of the outer wall of the cervical vertebra fixing sleeve, and an inflatable support cushion arranged on the support seat; The load monitoring module includes a first load acquisition unit for collecting the outer supporting load of the first fixed module and the oral and maxillofacial bone block, a second load acquisition unit for collecting the outer supporting load of the second fixed module and the oral and maxillofacial bone block, a third load acquisition unit for collecting the outer supporting load of the third fixed module and the oral and maxillofacial bone block, and a fourth load acquisition unit for collecting the inner supporting load of the inflatable support cushion and the oral and maxillofacial bone block; A data entry module, which is used to enter the user's facial image information, the facial image information including the facial image information before reset and the facial image information to be reset; A control module, which is respectively connected to the data entry module, the load monitoring module, the first fixed module, the second fixed module, the third fixed module and the inflatable support cushion, and is used to determine whether the size of the support load meets the preset standard according to the reset characteristic coefficient, and to determine whether the pattern of the support load meets the preset standard according to the contour overlap change rate.

2. The oral and maxillofacial bone block reducer according to claim 1, characterized in that: The first fixed module comprises a first sliding seat arranged on the fixed ring, a first fixed handle for fixing the first sliding seat on the fixed ring, a first connecting rod arranged on the first sliding seat, a first supporting seat arranged on the top of the first connecting rod, and a supporting adjustment unit arranged on the first supporting seat, wherein a first strip-shaped supporting pad is arranged at one end of the supporting adjustment unit away from the first supporting seat; The second fixed module comprises a second sliding seat arranged on the fixed ring, a second fixed handle for fixing the second sliding seat on the fixed ring, a second connecting rod arranged on the second sliding seat, a second supporting seat arranged on the top of the second connecting rod, and a supporting adjustment unit arranged on the second supporting seat, wherein a second strip-shaped supporting pad is arranged at one end of the supporting adjustment unit away from the second supporting seat; The third fixed module includes a third sliding seat arranged on the fixing ring, a third fixed handle for fixing the third sliding seat on the fixing ring, a third connecting rod arranged on the third sliding seat, a third supporting seat arranged at the top end of the third connecting rod, and a supporting adjustment unit arranged on the third supporting seat, wherein a V-shaped supporting pad is arranged at one end of the supporting adjustment unit away from the third supporting seat.

3. The oral and maxillofacial bone block reducer according to claim 2, characterized in that: The support adjustment unit comprises an air bag, an air delivery pipe connected to the air bag, and an air pump for inflating the air bag.

4. The oral and maxillofacial bone block reducer according to claim 1, characterized in that: The control module determines whether the size of the supporting load meets the preset standard according to the reset characteristic coefficient, wherein: If the reset characteristic coefficient is less than the preset reset characteristic coefficient, the control module determines that the size of the support load meets the preset standard according to the reset characteristic coefficient, and uses the preset initial loading load to complete the support loading of the first fixed module, the second fixed module, the third fixed module and the inflatable support cushion; If the reset characteristic coefficient is greater than or equal to the preset reset characteristic coefficient, the control module determines that the size of the support load does not meet the preset standard based on the reset characteristic coefficient, and reduces the preset initial loading load to a corresponding value based on the difference between the reset characteristic coefficient and the preset reset characteristic coefficient, and completes the support loading of the first fixed module, the second fixed module, the third fixed module and the inflatable support cushion.

5. The oral and maxillofacial bone block repositioner according to claim 4, characterized in that: The resetting characteristic coefficient is determined by the overlap ratio between the contour of the user's facial image to be relocated and the contour of the facial image before relocation, and the maximum distance between the contour point of the user's facial image to be relocated and the corresponding point of the contour of the facial image before relocation.

6. The oral and maxillofacial bone block repositioner according to claim 5, characterized in that: The reduction range of the preset initial loading load is positively correlated with the reset difference, wherein the reset difference is the difference between the reset characteristic coefficient and the preset reset characteristic coefficient.

7. The oral and maxillofacial bone block reducer according to claim 6, characterized in that: The control module determines whether the supporting load mode meets the preset standard according to the profile overlap change rate, wherein: If the contour overlap change rate is less than the preset contour overlap change rate, the control module determines that the support load mode does not meet the preset standard, and switches the constant load to the alternating load to complete the support loading of the first fixed module, the second fixed module, the third fixed module and the inflatable support cushion, wherein the maximum value of the alternating load is the constant load before the switching, and the minimum value of the alternating load is equal to 3 / 4 of the constant load before the switching; If the contour overlap change rate is greater than or equal to the preset contour overlap change rate, the control module determines that the support load mode meets the preset standard, and uses a constant load to complete the support loading of the first fixed module, the second fixed module, the third fixed module and the inflatable support cushion; The contour overlap change rate is the absolute value of the change in the overlap ratio between the contour of the user's facial image to be reset and the contour of the facial image before reset within the first preset time period.

8. The oral and maxillofacial bone block reducer according to claim 7, characterized in that: The control module corrects the frequency of the alternating load according to the difference between a preset change rate threshold and a profile coincidence change rate after the alternating load is loaded in response to a first preset condition; The first preset condition is that the control module completes the support loading of the first fixed module, the second fixed module, the third fixed module and the inflatable support cushion after using the alternating load and the contour overlap change rate after loading is less than the preset change rate threshold.

9. The oral and maxillofacial bone block reducer according to claim 8, characterized in that: The correction amplitude of the frequency of the alternating load is positively correlated with the correction difference, wherein the correction difference is the difference between a preset change rate threshold and the profile coincidence change rate after the alternating load is loaded.

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