Periodontitis molding mouth angle retraction device and equipment with fixed illumination and view amplification functions

Abstract

The invention relates to the technical field of animal experiment auxiliary equipment, in particular to a periodontitis modeling mouth angle retraction device and equipment with fixed illumination and view amplification, and the device comprises a supporting and fixing mechanism, a mechanical transmission mechanism and a fixed expansion mechanism; the supporting and fixing mechanism is used for supporting and fixing the whole device and the rat to be experimented; through a fixed supporting plate, a movable threaded rod, a first movable half clamp and a second movable half clamp in the fixed expansion mechanism, the mouth corners of to-be-experimented rats with different sizes are retracted; the mechanical transmission mechanism is provided with a first rotating mechanical plate, a second rotating mechanical plate, a magnifying observation mirror and illumination light, so that a clear view field and sufficient and uniform light are provided for an operator. By means of the unique structural design of the oral corner retracting device, the stability, comfort, safety, observation conditions, operation efficiency and accuracy in the periodontitis molding process are remarkably improved, and the problems that an existing oral corner retracting device is poor in fixing effect, safety and operability are solved.

Description

Technical Field

[0001] The invention relates to the technical field of animal experiment auxiliary equipment, in particular to a fixed illumination field-enlarged mouth angle retraction device and equipment for periodontitis modeling. Background Art

[0002] Periodontal disease is a common oral disease. It is one of the main causes of tooth loss in adults and is also a major oral disease that endangers human teeth and overall health. The early symptoms of periodontal disease are not easily taken seriously, resulting in long-term chronic infection of periodontal tissues and repeated inflammation, which not only damages the function of the oral masticatory system, but also seriously affects overall health. The prevalence of periodontitis is relatively high. Almost all teeth in the oral cavity of patients with periodontal disease have varying degrees of periodontitis. The establishment of an experimental periodontitis animal model is to expect that it will gradually develop into periodontitis on the basis of gingivitis, providing conditions for studying the etiology, occurrence and development process of periodontitis. Rats are rodents, and the gingival sulcus, alveolar ridge morphology and periodontal histological manifestations of their molar gingiva are similar to those of humans. At present, more and more studies use rats to establish animal models of periodontitis. Therefore, rat periodontitis modeling is a commonly used experimental method in periodontal disease research. By establishing a rat periodontitis model, the pathogenesis of human periodontitis can be simulated, and then the etiology, pathological changes, and treatment methods of periodontitis can be studied.

[0003] With the development of refined oral medical experimental research, the accuracy and repeatability of rat periodontitis modeling are increasingly required. In rat periodontitis modeling experiments, a clear and stable surgical field of view is very critical. Periodontitis modeling usually involves precise manipulation of the periodontal tissues in the rat's mouth, such as injecting bacterial suspensions into the gingival sulcus and placing ligatures. Traditionally, instruments are usually used to pull the corners of the rat's mouth on both sides to open its mouth, but traditional mouth retraction has poor retention, insufficient buccal exposure, and insufficient operating space, which cannot meet the operation requirements.

[0004] The Chinese utility model patent with the authorization publication number CN219323538U discloses a rodent opener, including an open ring and two functional screws and components, wherein the south and north walls of the open ring are provided with relative incisor fixing screws, the end of the incisor fixing screw is provided with an incisor fixing ring, and is fixed by inner and outer retaining nuts, and the length can be adjusted; the east and west walls of the open ring are provided with relative buccal mucosa spreading screws or lighting equipment, the buccal mucosa spreading hook with a curved end of the buccal mucosa spreading screw is fixed by inner and outer retaining nuts, and the length can be adjusted; the east and west walls of the open ring are provided with a support frame downward, the animal head can be suspended and tilted back, and the internal structure of the oral cavity of the rodent can be effectively exposed, which solves the problems of large size, complex structure, and inconvenient operation of the animal opener in the prior art, but the above-mentioned opener will be affected by the movement of the rat's head, resulting in poor fixing effect, and the corners of the mouth are easy to close during operation. In addition, the buccal mucosa will be damaged under the action of the force of the spreading hook, affecting the entry of surgical instruments and the operation. Therefore, in order to better study the pathogenesis of periodontitis, evaluate treatment methods, etc., a complete set of mouth angle retraction fixation lighting field magnification devices is needed to improve the stability, safety and experimental operability of mouth angle retraction fixation, which is of great significance for oral medicine experimental research. Summary of the invention

[0005] In view of the problems of poor fixing effect, safety and operability of the mouth angle retraction device in the prior art, the present invention provides a mouth angle retraction device and equipment for periodontitis modeling with fixed illumination and magnified field of view.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions: The present invention provides a fixed illumination field magnification periodontitis modeling mouth angle retraction device, comprising a supporting fixing mechanism, a mechanical transmission mechanism and a fixing expansion mechanism; The supporting and fixing mechanism comprises a supporting bottom plate and a fixed supporting platform, and the fixed supporting platform is arranged on the supporting bottom plate; The fixed expansion mechanism includes a supporting headrest, a fixing belt, a fixing belt fixing plate, a fixed support plate, a movable threaded rod, a first movable half clamp and a second movable half clamp; the supporting headrest is arranged on the supporting base plate; the fixed support plate is arranged on both sides of the supporting headrest; the movable threaded rod passes through the fixed support plate and can move in the vertical direction of the fixed support plate; the first movable half clamp and the second movable half clamp can both be rotatably arranged on the movable threaded rod and can move axially along the movable threaded rod; the first movable half clamp is hinged to the second movable half clamp, and a clamping spring or a retaining spring is arranged between the first movable half clamp and the second movable half clamp; the fixing belt fixing plates are arranged on both sides of the fixed support platform, one end of the fixing belt is connected to the fixing belt fixing plate on one side, and the other end is connected to the fixing belt fixing plate on the other side; The mechanical transmission mechanism includes a first rotating mechanical plate, a second rotating mechanical plate, a magnifying observation mirror and an illumination light; the first rotating mechanical plate is hinged to the supporting base plate, and the second rotating mechanical plate is hinged to the first rotating mechanical plate; the magnifying observation mirror is hinged to the second rotating mechanical plate, and the illumination light is arranged along the circumference of the magnifying observation mirror.

[0007] Optionally, a support fixing bin is provided on the fixed support platform, and a fixed support block is provided on the support fixing bin.

[0008] Optionally, the fixed support plate is provided with a strip-shaped limiting hole along the vertical direction, and the movable threaded rod passes through the limiting hole and moves along the limiting hole.

[0009] Optionally, movable nuts are respectively provided at both ends of the movable threaded rod.

[0010] Optionally, a plurality of movable threaded blocks are arranged on the movable threaded rod, and the movable threaded blocks are arranged on the movable threaded rod outside the first movable half-clamp and the second movable half-clamp.

[0011] Optionally, the first movable half clamp and the second movable half clamp are both sleeved with rubber expansion blocks.

[0012] Optionally, a transmission mechanism fixed support plate is provided on the support bottom plate, a first transmission mechanism fixed support block is provided on the transmission mechanism fixed support plate, and the first rotating mechanical plate is hinged to the first transmission mechanism fixed support block; A connecting block is hinged between the first rotating mechanical plate and the second rotating mechanical plate; connecting springs are respectively arranged at the hinges between the connecting block and the first rotating mechanical plate and the second rotating mechanical plate, wherein the free end of the connecting spring arranged at the hinge between the connecting block and the first rotating mechanical plate is connected to the first rotating mechanical plate, and the free end of the connecting spring arranged at the hinge between the connecting block and the second rotating mechanical plate is connected to the second rotating mechanical plate.

[0013] Optionally, threaded connection blocks are provided at both ends of the fixing belt; threaded holes are provided on the fixing plates of the fixing belt, fixed threaded columns are threadedly connected in the threaded holes, and the fixed threaded columns pass through the threaded holes and are threadedly connected to the threaded connection blocks.

[0014] Optionally, a rotating connecting plate is provided at the bottom of the magnifying observation mirror, the rotating connecting plate is hinged with a magnifying observation mirror connecting block, and the magnifying observation mirror connecting block is hinged to the second rotating mechanical plate.

[0015] The present invention also provides a periodontitis modeling device, comprising the above-mentioned fixed illumination field-enlarged periodontitis modeling mouth angle retraction device.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The invention discloses a mouth-angle retraction device for periodontitis modeling with fixed illumination and magnified visual field, comprising a supporting and fixing mechanism, a mechanical transmission mechanism and a fixed expansion mechanism; a supporting bottom plate is provided to provide basic fixed support for the entire device, and the fixed support platform is provided for fixedly supporting rats to be tested; the supporting headrest can provide good support and position limiting for the heads of the rats to be tested, and can be used in conjunction with a fixing belt to fix the rats and their heads, thereby avoiding the problem of poor fixation of the mouth-angle retraction in the later stage due to poor support of the head; by providing a fixed support plate, a movable threaded rod, a first movable half clamp and a second movable half clamp, mouth-angle retraction of rats to be tested of different sizes can be achieved, and when performing mouth-angle retraction, the rats only need to be fixed on the The support table is fixed, and the rat's head is fixed on the support headrest, the height of the movable threaded rod is adjusted, the first movable half clamp and the second movable half clamp are rotated and placed in the oral cavity of the experimental rat, and the angle between the first movable half clamp and the second movable half clamp is adjusted to realize flexible pulling and fixing of the mouth corners. This internal expansion method will not cause tearing damage to the cheeks, and the comfort and safety are better; by setting the first rotating mechanical plate, the second rotating mechanical plate, the magnifying observation mirror and the lighting light on the mechanical transmission mechanism, when in use, the magnifying observation mirror and the lighting light are moved to a suitable position to provide the operator with a clear field of vision and sufficient and uniform light, reduce the shadow area, and further improve the accuracy, efficiency and success rate of the operation. The mouth corner retraction device has a simple structure and is easy to operate. Through its unique structural design, it significantly improves the stability, comfort, safety, observation conditions, operation efficiency and accuracy in the process of periodontitis modeling, and provides strong support for the research and treatment of periodontitis.

[0017] The fixed support platform is provided with a support fixing chamber, and the support fixing chamber is provided with a fixed support block. The support fixing chamber can effectively limit and fix the experimental rats to prevent oral damage caused by their violent resistance, and further improve the accuracy and stability of rat periodontitis modeling operation.

[0018] The fixed support plate is provided with a strip-shaped limiting hole along the vertical direction, and the movable threaded rod passes through the limiting hole and moves along the limiting hole. The setting of the limiting hole can meet the requirements of height adjustment of the movable threaded rod, improve the versatility of the mouth angle retraction device, and facilitate the height adjustment of the first movable half clamp and the second movable half clamp to adapt to the height of the oral cavity of the rat to be tested.

[0019] The two ends of the movable threaded rod are respectively provided with movable nuts. The setting of the movable nuts can further fix and limit the first movable half clamp and the second movable half clamp after the height is adjusted to prevent them from falling off, thereby further improving the stability of the mouth angle retraction fixation.

[0020] The movable threaded rod is provided with a plurality of movable threaded blocks, and the movable threaded blocks are separately arranged on the movable threaded rod outside the first movable half-clamp and the second movable half-clamp. The movable threaded blocks are arranged such that, in addition to a part of the movable threaded blocks being used to cooperate with the movable nut to fix and limit the movable threaded rod, another part of the movable threaded blocks can be used to adjust the opening angle between the first movable half-clamp and the second movable half-clamp, so that the opening angle between the first movable half-clamp and the second movable half-clamp is adapted to the size of the oral cavity of the experimental rat, thereby ensuring that the oral cavity of the experimental rat is effectively retracted without damaging the cheeks of the experimental rat, thereby providing effective space for periodontitis modeling operations.

[0021] The first movable half clamp and the second movable half clamp are both provided with rubber expansion blocks. The rubber expansion blocks are provided with rubber material having good elasticity and softness, which can reduce the pressure of the first movable half clamp and the second movable half clamp on the oral soft tissue of the experimental rat, and can better fit the contour of the oral soft tissue, reduce discomfort, and further improve the safety and comfort of oral retraction.

[0022] The support bottom plate is provided with a transmission mechanism fixed support plate, and the transmission mechanism fixed support plate is provided with a first transmission mechanism fixed support block, and the first rotating mechanical plate is hinged to the first transmission mechanism fixed support block; through the setting of the first transmission mechanism fixed support block, it can provide effective support and connection for the mechanical transmission mechanism, improve the stability of the device, and facilitate the installation of the mechanical transmission mechanism. A connecting block is hinged between the first rotating mechanical plate and the second rotating mechanical plate; the setting of the connecting block can improve the stability of the device. Connecting springs are respectively provided at the hinges between the connecting block and the first rotating mechanical plate and the second rotating mechanical plate. The setting of the connecting spring and the connecting block can further improve the flexibility and applicability of the device. At the same time, the setting of the connecting spring can play a role in buffering impact. During the mechanical transmission process, the connecting spring can absorb and disperse the impact force caused by operation or external force, and protect the first rotating mechanical plate and the second rotating mechanical plate from damage.

[0023] The two ends of the fixing belt are provided with threaded connection blocks; the fixing plate of the fixing belt is provided with threaded holes, the threaded holes are threadedly connected with fixed threaded columns, and the fixed threaded columns pass through the threaded holes and are threadedly connected with the threaded connection blocks. Through the arrangement of the threaded connection blocks, the fixed threaded columns and the threaded holes on the fixing belt fixing plate, during use, the tightness of the fixing belt can be adjusted by adjusting the fixed threaded columns, so as to achieve effective fixation of the experimental rats and further improve the versatility of the device.

[0024] The bottom of the magnifying observation mirror is provided with a rotating connecting plate, the rotating connecting plate is hinged with a magnifying observation mirror connecting block, and the magnifying observation mirror connecting block is hinged with the second rotating mechanical plate. The arrangement of the rotating connecting plate and the magnifying observation mirror connecting block further improves the flexibility of adjusting the magnifying observation mirror, allowing the operator to observe and operate the oral cavity from multiple angles.

[0025] A periodontitis modeling device includes the above-mentioned fixed illumination field magnified periodontitis modeling mouth angle retraction device. The device has higher periodontitis modeling precision and accuracy, simple structure, convenient and comfortable operation, high success rate and efficiency of periodontitis modeling, and is of great significance for promoting the development of periodontitis research and treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 The present invention is a schematic structural diagram of a mouth angle retraction device for periodontitis modeling with fixed illumination and magnified field of view.

[0027] Figure 2 This is a schematic diagram of the structure in another direction of a fixed illumination field-enlarged mouth angle retraction device for periodontitis modeling according to the present invention.

[0028] Figure 3 for Figure 2 Enlarged view of point A.

[0029] Figure 4 for Figure 2 Enlarged view of point B.

[0030] Among them, 1-support fixed bin, 2-fixed expansion mechanism, 3-mechanical transmission mechanism, 4-support fixed mechanism, 201-fixed threaded column, 202-fixed belt fixed plate, 203-fixed belt, 204-movable threaded rod, 205-fixed support plate, 206-first mobile half clamp, 207-rubber expansion block, 208-movable nut, 209-second mobile half clamp, 2010-support headrest, 2011-fixed support block, 2012-movable threaded block, 301-second transmission mechanism fixed Fixed support block, 302-threaded fixing column, 303-first transmission mechanism fixed support block, 304-first rotating mechanical plate, 305-connecting spring, 306-connecting block, 307-first hinge shaft, 308-second rotating mechanical plate, 309-second hinge shaft, 3010-magnifying observation mirror connecting block, 3011-rotating connecting plate, 3012-illumination light, 3013-magnifying observation mirror, 401-transmission mechanism fixed support plate, 402-support base plate, 403-fixed support platform. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0034] In the description of the embodiments of the present invention, it should be noted that if the terms "upper", "lower", "horizontal", "inner", etc. indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the invention is usually placed when in use, it is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0035] In addition, if the term "horizontal" appears, it does not mean that the component must be absolutely horizontal, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", which does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0036] In the description of the embodiments of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] The present invention is further described in detail below in conjunction with specific embodiments, which are intended to explain the present invention rather than to limit it.

[0038] Example 1 See also Figure 1 and Figure 2 The present invention provides a fixed illumination field magnified periodontitis modeling mouth angle retraction device, comprising a support fixing chamber 1, a support fixing mechanism 4, a mechanical transmission mechanism 3 and a fixed expansion mechanism 2; The supporting and fixing mechanism 4 includes a transmission mechanism fixed support plate 401, a support bottom plate 402 and a fixed support platform 403, and the fixed support platform 403 and the transmission mechanism fixed support plate 401 are both arranged on the support bottom plate 402; The support and fixing bin 1 is arranged on a fixed support platform 403; See also Figure 3The fixed expansion mechanism 2 includes a support headrest 2010, a fixed support block 2011, a fixed belt 203, a fixed belt fixed plate 202, a fixed support plate 205, a movable threaded rod 204, a first movable half clamp 206, a second movable half clamp 209 and a plurality of movable threaded blocks 2012; the support headrest 2010 is arranged on the support base plate 402; the fixed support plates 205 are arranged on both sides of the support headrest 2010, and the fixed support plates 205 are provided with strip-shaped limiting holes in the vertical direction; the movable threaded rod 204 passes through the strip-shaped limiting holes and can be moved along the fixed support The support plate 205 moves in the vertical direction, and the two ends of the movable threaded rod 204 are respectively provided with movable nuts 208; the first movable half clamp 206 and the second movable half clamp 209 can be rotatably arranged on the movable threaded rod 204, and can move axially along the movable threaded rod 204; the first movable half clamp 206 and the second movable half clamp 209 are hinged, and a clamp spring or a retaining spring is arranged between the first movable half clamp 206 and the second movable half clamp 209, and the first movable half clamp 206 and the second movable half clamp 209 are both sleeved with rubber expansion blocks 207; the fixing belt fixing plate 202 It is separately arranged on both sides of the fixed support platform 403, one end of the fixed belt 202 is connected to the fixed belt fixing plate 202 on one side, and the other end is connected to the fixed belt fixing plate 202 on the other side; the movable thread block 2012 is separately arranged on the movable threaded rod 204 outside the first movable half clamp 206 and the second movable half clamp 209. Preferably, the movable thread block 2012 is set to four, two of which are located on the movable threaded rod 204 outside the first movable half clamp 206, and the other two are arranged on the movable threaded rod 204 outside the second movable half clamp 209, close to the movable fixed The threaded block 2012 of the support plate 205 is used to cooperate with the moving nut 208 to fix and limit the moving threaded rod 204. The moving threaded block 2012 close to the first moving half clamp 206 and the second moving half clamp 205 can be used to adjust the opening angle between the first moving half clamp 206 and the second moving half clamp 209, so that the opening angle between the first moving half clamp 206 and the second moving half clamp 209 is adapted to the size of the oral cavity of the experimental rat, ensuring that the oral cavity of the experimental rat is effectively retracted without damaging the cheeks of the experimental rat, thereby providing effective space for periodontitis modeling operations; See also Figure 4 The mechanical transmission mechanism 3 includes a first rotating mechanical plate 304, a second rotating mechanical plate 308, a magnifying observation mirror 3013 and an illuminating light 3012; the first rotating mechanical plate 304 is hinged on the transmission mechanism fixed support plate 401, and the second rotating mechanical plate 308 is hinged to the first rotating mechanical plate 304; the magnifying observation mirror 3013 is hinged to the second rotating mechanical plate 308, and the illuminating light 3012 is arranged along the circumference of the magnifying observation mirror 3013.

[0039] When performing mouth angle retraction, it is only necessary to fix the rat on the fixed support platform 403, and fix the rat head on the support headrest 2010, adjust the height of the movable threaded rod 204, rotate the first movable half clamp 206 and the second movable half clamp 209 to place them in the oral cavity of the rat to be tested, adjust the angle between the first movable half clamp 206 and the second movable half clamp 209, realize flexible retraction and fixation of the mouth angle, and then use a rope to connect and fix the teeth of the rat to be tested with the fixed support block 2011 to further improve the fixation effect; when the light is poor and fine operation is required, the magnifying observation mirror 3013 and the lighting light 3012 are moved to a suitable position to provide the operator with a clear field of vision and sufficient and uniform light, reduce the shadow area, and further improve the accuracy, efficiency and success rate of the operation. The mouth angle retraction device has a simple structure and is easy to operate. Through its unique structural design, it significantly improves the stability, comfort, safety, observation conditions, operation efficiency and accuracy in the process of periodontitis modeling, and provides strong support for the research and treatment of periodontitis.

[0040] Example 2 See also Figure 1 and Figure 2 The present invention provides a fixed illumination field magnified periodontitis modeling mouth angle retraction device, comprising a support fixing chamber 1, a support fixing mechanism 4, a mechanical transmission mechanism 3 and a fixed expansion mechanism 2; The support and fixing mechanism 4 includes a transmission mechanism fixed support plate 401, a support bottom plate 402 and a fixed support platform 403; The fixed support platform 403 and the transmission mechanism fixed support plate 401 are both arranged on the support bottom plate 402; The bottom of the support and fixing bin 1 is connected to the fixed support platform 403; See also Figure 3 , the fixed expansion mechanism 2 includes a fixed threaded column 201, a fixed belt fixed plate 202, a fixed belt 203, a movable threaded rod 204, a fixed support plate 205, a first movable half clamp 206, a rubber expansion block 207, a movable nut 208, a second movable half clamp 209, a support headrest 2010, a fixed support block 2011 and four movable threaded blocks 2012; The supporting headrest 2010 is arranged on the supporting bottom plate 402; the fixed supporting plates 205 are arranged on both sides of the supporting headrest 2010, and the fixed supporting plates 205 are provided with strip limiting holes in the vertical direction; the movable threaded rod 204 passes through the strip limiting holes and can move in the vertical direction along the fixed supporting plate 205, and movable nuts 208 are respectively provided at both ends of the movable threaded rod 204; the first movable half-clamp 206 and the second movable half-clamp 209 can be rotatably arranged on the movable threaded rod 204, and can move axially along the movable threaded rod 204; the first movable half-clamp 206 and the second movable half-clamp 209 are hinged, and a clamping spring or a retaining spring is arranged between the first movable half-clamp 206 and the second movable half-clamp 209, and the first movable half-clamp 206 and the second movable half-clamp 209 are both sleeved with rubber expansion blocks 207; The fixing belt fixing plate 202 is disposed on both sides of the fixing support platform 403, and threaded connection blocks are disposed at both ends of the fixing belt 203. The fixing belt fixing plate 202 is provided with threaded holes, and the fixing threaded column 201 passes through the threaded holes and is threadedly connected to the threaded connection blocks; The movable threaded blocks 2012 are separately arranged on the movable threaded rod 204 outside the first movable half clamp 206 and the second movable half clamp 209, two of which are located on the movable threaded rod 204 outside the first movable half clamp 206, and the other two are arranged on the movable threaded rod 204 outside the second movable half clamp 209. The threaded block 2012 close to the movable fixed support plate 205 is used to cooperate with the movable nut 208 to fix and limit the movable threaded rod 204. The movable threaded block 2012 close to the first movable half clamp 206 and the second movable half clamp 205 can be used to adjust the opening angle between the first movable half clamp 206 and the second movable half clamp 209, so that the opening angle between the first movable half clamp 206 and the second movable half clamp 209 is adapted to the size of the oral cavity of the rat to be tested, ensuring that the oral cavity of the rat to be tested is effectively retracted without damaging the cheeks of the rat to be tested, thereby providing an effective space for the periodontitis modeling operation; Reference Figure 4 The mechanical rotating mechanism 3 includes a second transmission mechanism fixed support block 301, a threaded fixed column 302, a first transmission mechanism fixed support block 303, a first rotating mechanical plate 304, a connecting spring 305, a connecting block 306, a first hinge shaft 307, a second rotating mechanical plate 308, a second hinge shaft 309, a magnifying observation mirror connecting block 3010, a rotating connecting plate 3011, an illuminating light 3012 and a magnifying observation mirror 3013; The second transmission mechanism fixed support block 301 is fixed to the transmission mechanism fixed support plate 401 through a threaded fixing column 302; the first transmission mechanism fixed support block 303 is fixed to the second transmission mechanism fixed support block 301, and the first rotating mechanical plate 304 is hinged to the first transmission mechanism fixed support block 303; one end of the connecting block 306 is hinged to the first rotating mechanical plate 304, and the other end is hinged to the second rotating mechanical plate 308 through a first hinge shaft 307; the connecting block 306 is hinged with the first rotating mechanical plate 304 and the second rotating mechanical plate 308 at the hinges, respectively, and a connecting spring 305 is provided, wherein a The free end of the connecting spring 305 at the hinge between the connecting block 306 and the first rotating mechanical plate 304 is connected to the first rotating mechanical plate 304, and the free end of the connecting spring 305 arranged at the hinge between the connecting block 306 and the second rotating mechanical plate 308 is connected to the second rotating mechanical plate 308; the rotating connecting plate 3011 is connected to the magnifying observation glass 3013, and the magnifying observation glass connecting block 3010 is connected to the second rotating mechanical plate 308; the rotating connecting plate 3011 and the magnifying observation glass connecting block 3010 are hinged through the second hinge shaft 309, and the lighting light 3012 is arranged circumferentially along the magnifying observation glass 3013.

[0041] When surgery is required on the mouse, the mouse is fixed inside the support and fixing chamber 1, and the position of the fixed threaded column 201 is moved to drive the fixing belt 203 to move, so that the mouse is fixed on the supporting headrest 2010 and the fixed support platform 403, which is convenient for surgery. At the same time, the movable nut 208 is rotated outward so that the movable threaded column 204 can move inside the fixed support plate 205, and the movable threaded column 204 is adjusted to a suitable height to facilitate the surgery; after the movable threaded column 204 is adjusted to a suitable position, the rubber expansion block 207 is placed in the mouse's mouth, and when the mouse's mouth needs to be expanded, the position of the movable threaded block 2012 connected to the movable threaded column 204 can be adjusted to change the angle, and the angles of the first movable half clamp 206 and the second movable half clamp 209 can be changed and fixed by rotating; one end of the rope is fixed to the fixed support block 2011, and the other end is used to fix the mouse's teeth, so that the range of mouth expansion can be increased.

[0042] When performing an operation, the first rotating mechanical plate 304 inside the first transmission mechanism fixed support block 303 on the second transmission mechanism fixed support block 301 is pulled forward, and the second rotating mechanical plate 308 inside the connecting block 306 is pulled, so that the operation can be performed according to the needs of the operation. At the same time, the magnifying observation mirror 3013 is rotated, and the lighting light 3012 is turned on, so that the internal situation can be more clearly observed through the magnifying observation mirror 3013 to facilitate the operation.

[0043] The present invention also provides a periodontitis modeling device, including the above-mentioned fixed illumination field magnified periodontitis modeling mouth angle retraction device. The device has higher periodontitis modeling precision and accuracy, simple structure, convenient operation and good comfort, high success rate and efficiency of periodontitis modeling, and is of great significance for promoting the development of research and treatment of periodontitis.

[0044] The above description is only a preferred embodiment of the present invention and is not intended to impose any limitation on the technical solution of the present invention. Those skilled in the art should understand that, without departing from the spirit and principles of the present invention, the technical solution can also be subjected to several simple modifications and substitutions, and these modifications and substitutions are also within the scope of protection covered by the claims.

Claims

1. A fixed illumination field magnified mouth angle retraction device for periodontitis modeling, characterized in that: It comprises a supporting and fixing mechanism (4), a mechanical transmission mechanism (3) and a fixing and expanding mechanism (2); The supporting and fixing mechanism (4) comprises a supporting bottom plate (402) and a fixed supporting platform (403), wherein the fixed supporting platform (403) is arranged on the supporting bottom plate (402); The fixed expansion mechanism (2) comprises a support headrest (2010), a fixing belt (203), a fixing belt fixing plate (202), a fixed support plate (205), a movable threaded rod (204), a first movable half clamp (206) and a second movable half clamp (209); the support headrest (2010) is arranged on a support base plate (402); the fixed support plate (205) is arranged on both sides of the support headrest (2010); the movable threaded rod (204) passes through the fixed support plate (205) and can move in a vertical direction along the fixed support plate (205); the first movable half clamp ( The first movable half clamp (206) and the second movable half clamp (209) can both be rotatably arranged on the movable threaded rod (204) and can be axially moved along the movable threaded rod (204); the first movable half clamp (206) and the second movable half clamp (209) are hinged, and a clamp spring or a retaining spring is arranged between the first movable half clamp (206) and the second movable half clamp (209); the fixing belt and the fixing plate (202) are arranged on both sides of the fixed support platform (403), one end of the fixing belt (203) is connected to the fixing belt and the fixing plate (202) on one side, and the other end is connected to the fixing belt and the fixing plate (202) on the other side; The mechanical transmission mechanism (3) comprises a first rotating mechanical plate (304), a second rotating mechanical plate (308), a magnifying observation mirror (3013) and an illuminating light (3012); the first rotating mechanical plate (304) is hinged on a supporting base plate (402), and the second rotating mechanical plate (308) is hinged to the first rotating mechanical plate (304); the magnifying observation mirror (3013) is hinged to the second rotating mechanical plate (308), and the illuminating light (3012) is arranged along the circumference of the magnifying observation mirror (3013).

2. The fixed illumination field magnified mouth angle retraction device for periodontitis modeling according to claim 1, characterized in that: A support fixing bin (1) is provided on the fixed support platform (403), and a fixed support block (2011) is provided on the support fixing bin (1).

3. The fixed illumination field magnified mouth angle retraction device for periodontitis modeling according to claim 1, characterized in that: The fixed support plate (205) is provided with a strip-shaped limiting hole in the vertical direction, and the movable threaded rod (204) passes through the limiting hole and moves along the limiting hole.

4. The fixed illumination field magnified mouth angle retraction device for periodontitis modeling according to claim 3, characterized in that: Movable nuts (208) are respectively provided at both ends of the movable threaded rod (204).

5. The fixed illumination field magnified mouth angle retraction device for periodontitis modeling according to claim 4, characterized in that: A plurality of movable threaded blocks (2012) are arranged on the movable threaded rod (204); the movable threaded blocks (2012) are arranged on the movable threaded rod (204) outside the first movable half clamp (206) and the second movable half clamp (209).

6. The fixed illumination field magnified mouth angle retraction device for periodontitis modeling according to claim 1, characterized in that: The first movable half clamp (206) and the second movable half clamp (209) are both sleeved with a rubber expansion block (207).

7. The fixed illumination field magnified mouth angle retraction device for periodontitis modeling according to claim 1, characterized in that: A transmission mechanism fixed support plate (401) is arranged on the support bottom plate (402), a first transmission mechanism fixed support block (303) is arranged on the transmission mechanism fixed support plate (401), and the first rotating mechanical plate (304) is hingedly connected to the first transmission mechanism fixed support block (303); A connecting block (306) is hinged between the first rotating mechanical plate (304) and the second rotating mechanical plate (308); connecting springs (305) are respectively arranged at the hinges between the connecting block (306) and the first rotating mechanical plate (304) and the second rotating mechanical plate (308), wherein the free end of the connecting spring (305) arranged at the hinge between the connecting block (306) and the first rotating mechanical plate (304) is connected to the first rotating mechanical plate (304), and the free end of the connecting spring (305) arranged at the hinge between the connecting block (306) and the second rotating mechanical plate (308) is connected to the second rotating mechanical plate (308).

8. The fixed illumination field magnified mouth angle retraction device for periodontitis modeling according to claim 1, characterized in that: Threaded connection blocks are provided at both ends of the fixing belt (203); a threaded hole is provided on the fixing belt fixing plate (202); a fixing threaded column (201) is threadedly connected in the threaded hole; the fixing threaded column (201) passes through the threaded hole and is threadedly connected to the threaded connection block.

9. The fixed illumination field magnified mouth angle retraction device for periodontitis modeling according to claim 1, characterized in that: A rotating connection plate (3011) is provided at the bottom of the magnifying observation mirror (3013), the rotating connection plate (3011) is hingedly connected to a magnifying observation mirror connection block (3010), and the magnifying observation mirror connection block (3010) is hingedly connected to the second rotating mechanical plate (308).

10. A periodontitis modeling device, characterized in that: The invention comprises the fixed illumination field-enlarged mouth angle retraction device for periodontitis modeling as described in any one of claims 1 to 9.

Images