Oral cavity expanding device for oral cavity examination

Abstract

The invention belongs to the technical field of medical auxiliary instruments, and particularly relates to an oral cavity expanding device for oral cavity examination, the oral cavity expanding device comprises a supporting part, a mouth corner expanding part, a pressing plate part and an expanding adjusting mechanism, the supporting part is fixedly provided with a frame body part; the two mouth corner expanding and supporting parts are arranged on the outer walls of the two sides of the frame body part in a mirror image mode, and expanding and supporting grooves are formed in the mouth corner expanding and supporting parts; the two pressing plate parts are arranged on the outer walls of the other two sides of the frame part in a mirror image mode. The expanding and supporting adjusting mechanism is arranged in a cavity formed in the frame body part, and the expanding and supporting adjusting mechanism is connected with the mouth corner expanding and supporting part in a mirroring mode and the pressing plate part in a mirroring mode; according to the oral cavity expanding device, the use range and the use frequency of the oral cavity expanding device can be increased, and the expanding adjusting mechanism is arranged in the frame of the frame body part instead of the center, so that the medical personnel cannot interfere with the oral cavity examination or cannot influence the examination accuracy of the medical personnel.

Description

Technical Field

[0001] The invention belongs to the technical field of medical auxiliary instruments, and in particular relates to an oral cavity expansion and support device for oral cavity examination. Background Art

[0002] Dentistry is an important department in modern medicine, dealing with various oral diseases or related diseases caused by the oral cavity. The most important thing in dentistry is oral examination. With the development of technology, various auxiliary instruments have been developed to assist oral examination. In addition to imaging equipment, they also include a series of instruments used for oral support.

[0003] In the dental department, in order to facilitate the adjustment of the size of the oral opening during oral examination, an expansion tool with adjustable opening size is usually used. Conventional expansion tools can either only expand the corners of the mouth on both sides of the mouth, or can only expand the upper and lower dental plates or upper and lower lips of the mouth. It is impossible to expand the corners of the mouth on both sides and the upper and lower dental plates or lips at the same time as needed, or to adjust the oral expansion device according to the need of expansion, thereby reducing the wide range of use of the oral expansion device. At the same time, since the expansion adjustment mechanism of the expansion tool is mostly set at the center of the expansion frame, it will inevitably interfere with the inspection and treatment of the expanded mouth by oral medical staff. Summary of the invention

[0004] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0005] The present invention is an oral cavity expansion device for oral cavity inspection, comprising a support portion, on which a frame member is fixed;

[0006] Mouth corner expansion and support parts, two of the mouth corner expansion and support parts are mirror-imaged and arranged on the outer walls of both sides of the frame, and expansion and support grooves are provided on the mouth corner expansion and support parts;

[0007] A pressing plate part, wherein two of the pressing plate parts are mirror-imaged and disposed on the other two outer walls of the frame member;

[0008] The expansion and support adjustment mechanism is placed in a cavity provided in the frame member, and the expansion and support adjustment mechanism is connected to the mirror image of the mouth corner expansion part and the mirror image of the pressure plate part.

[0009] Furthermore, the expansion and support adjustment mechanism includes a screw shaft, a gear part, a frame part, an airbag strip, a moving block and a screw part. The four side walls of the frame part are all plugged with screw shafts, and each screw shaft is sleeved with a gear part through a screw nut. Multiple gear parts are placed in the cavity, and each gear part is sleeved with a frame part. The inner wall of one side of the frame part is provided with teeth meshing with the gear part. The outer ends of the screw shaft extending on the left and right sides are connected to the mouth corner expansion and support part, and the upper The outer ends of the screw shaft extending on the lower two sides are connected to the pressure plate part, the two ends of the square frame are connected to airbag strips, and the airbag strips are connected to the moving block slidably arranged in the cavity, the outer side of the cavity is covered with a cover plate, and the four corners of the cover plate are provided with arc guide grooves, a screw member is inserted in the arc guide groove, the inner end of the screw member is threadedly connected to the moving block and contacts the airbag strip, and the circular ring at the outer end of the screw member fits to the outside of the arc guide groove.

[0010] Furthermore, the airbag strips located at two of the corners in the cavity are of an integrally formed design, and the airbag strips slide through the moving block and are respectively connected to the ends of the vertical frame and the horizontal frame on both sides. The airbag strips located at the other two corners in the cavity are of a segmented design, one end of the airbag strip is connected to the other end of the vertical frame, and the other end of the airbag strip is connected to the other end of the horizontal frame. The two segmented airbag strips are staggered front to back, and their free ends are fitted front to back. A moving block is slidably mounted on each airbag strip, and a square slot is provided on the moving block mounted on the airbag strip located in the rear segment, and the width of the square slot is greater than the thickness of the two airbag strips.

[0011] Furthermore, an airbag plate is provided on the lower surface of the pressure plate portion below the frame member, and a skin-friendly layer is detachably connected to the lower surface of the airbag plate. A connecting inflatable component is provided on the support portion, and the connecting inflatable component is respectively connected to the airbag plate and the airbag strip.

[0012] Furthermore, the connecting inflation component includes an airbag ball, an air guide main pipe, a connecting pipe and an air distribution pipe. At least two of the airbag balls are fixed on the support portion, and a one-way valve is installed on the airbag ball. The airbag ball is connected to the air guide main pipe arranged inside the support portion, and the top end of the air guide main pipe is connected to the connecting pipe. The connecting pipe is connected to the airbag plate and the integrally formed airbag strip through two air distribution pipes respectively, and a diversion sealing component is provided on the connecting pipe.

[0013] Furthermore, the diversion sealing assembly includes a connecting tube, an externally threaded tube, a conducting tube, a sealing ring and a spring member. The connecting tube is rotatably inserted into the connecting tube, and three connecting holes are opened on the tube wall of the connecting tube. The distance between two of the connecting holes opened on the upper tube wall of the connecting tube is smaller than the distance between the pipe openings of the two air dividing tubes connected to the connecting tube. The outer end of the connecting tube is connected to the externally threaded tube, and the externally threaded tube is threadedly connected and extends out of the outside of the supporting part. A conducting tube with sealed ends is slidably inserted into the externally threaded tube, and a plurality of air leakage holes are opened on the outer tube walls of the two ends of the conducting tube. The outer tube opening of the conducting tube is sealed with a sealing ring, and a spring member is connected between the sealing ring and the outer side surface of the support part.

[0014] Furthermore, the support portion is an L-shaped structure, and a skin-friendly cushion layer is provided on its inner side.

[0015] Furthermore, a sterile cloth is detachably mounted on the groove wall of the expansion groove.

[0016] The present invention has the following beneficial effects:

[0017] 1. The present invention has a mouth corner expansion part detachably mounted on the left and right sides of the frame member, and a pressure plate part detachably mounted on the upper and lower sides thereof. The expansion adjustment mechanism can not only synchronously expand and adjust the left and right mouth corner expansion parts and the upper and lower pressure plate parts, but also can separately adjust the symmetrical mouth corner expansion parts to expand the patient's mouth corners, and can separately adjust the upper and lower pressure plate parts, so that medical staff can separately adjust the size of the opening of the patient's upper and lower lips according to the needs of the examination, thereby increasing the use range and frequency of the oral dilation device of the present invention. The expansion adjustment mechanism is arranged inside the frame of the frame member, rather than at the center, and therefore will not interfere with the medical staff's oral examination or affect the accuracy of their examination.

[0018] 2. The present invention integrates the airbag strips at two corners into one piece, and separates the airbag strips at the other two corners. The cooperation of the moving block and the screw member can squeeze and connect the separate airbag strips, and the four frame members can be connected to each other to form a whole. Then, two of the screw members can be moved at will. At this time, the moving block can drive the interconnected and integrally formed airbag strips to slide in the cavity, and then drive the four frame members to slide in the cavity, so that the left-right symmetrical mouth corner expansion part and the upper-lower symmetrical pressure plate part can be expanded and adjusted synchronously, so that the medical staff can accurately examine and treat the patient's oral cavity after expansion, and the mouth corner expansion part and the pressure plate part can be shrunk and adjusted synchronously, which is convenient for the medical staff to quickly remove the oral cavity expansion device from the patient's oral cavity in a safe state.

[0019] 3. The present invention connects the inflation component and the diversion blocking component to cooperate so that the airbag plate on the lower pressure plate can expand and limit the tongue tip to prevent it from tilting and affecting oral examination. At the same time, the one-piece airbag strip can be inflated and hardened, which is convenient for connecting and driving two adjacent frame parts to slide. At the same time, the gas in the airbag plate or the one-piece airbag strip can be released, so that when the airbag ball is pressed to inflate the airbag plate or the airbag strip, or when the airbag plate or the airbag strip is deflated, there will be no interference between the two, thereby improving the safety of the oral expansion device of the present invention.

[0020] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0022] Figure 1 It is a schematic diagram of the overall structure of the embodiment disclosed in the present invention;

[0023] Figure 2 A schematic diagram of the internal structure of a frame member according to an embodiment of the present invention;

[0024] Figure 3 It is an exploded assembly diagram of a frame member and a cover plate of an embodiment disclosed in the present invention;

[0025] Figure 4 It is a structural schematic diagram of the expansion and support adjustment mechanism of the disclosed embodiment of the present invention;

[0026] Figure 5 It is a schematic structural diagram of the inflatable assembly connected to the support portion of the embodiment disclosed in the present invention;

[0027] Figure 6 It is a cross-sectional view of a connecting pipe according to an embodiment of the present invention.

[0028] In the figure: 1. Support part;

[0029] 2. frame member; 21. cavity; 22. cover plate; 23. arc guide groove;

[0030] 3. Mouth corner expansion part; 31. Expansion groove;

[0031] 4. Pressing plate part;

[0032] 5. expansion and support adjustment mechanism; 51. screw shaft; 52. gear part; 53. square frame; 531. teeth; 54. airbag strip; 55. moving block; 551. square slot; 56. screw member; 57. airbag plate;

[0033] 6. Connecting inflation assembly; 61. Air bag ball; 62. Air guide main pipe; 63. Connecting pipe; 64. Air distribution pipe;

[0034] 7. shunt plugging assembly; 71. connecting insert; 711. connecting hole; 72. external threaded pipe; 73. conducting insert; 731. air leakage hole; 74. sealing ring; 75. spring member. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. 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.

[0036] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "all around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0037] See also Figure 1-Figure 6 As shown, the present invention is an oral cavity expansion device for oral examination, comprising a support part 1, a mouth corner expansion part 3, a pressure plate part 4 and an expansion adjustment mechanism 5, wherein a frame part 2 is fixedly arranged on the support part 1; two mouth corner expansion parts 3 are mirror-imaged on the outer walls of both sides of the frame part 2, and expansion grooves 31 are arranged on the mouth corner expansion part 3; two pressure plate parts 4 are mirror-imaged on the outer walls of the other two sides of the frame part 2; the expansion adjustment mechanism 5 is placed in a cavity 21 provided in the frame part 2, and the expansion adjustment mechanism 5 is connected to the mirror-imaged mouth corner expansion parts 3 and the mirror-imaged pressure plate parts 4;

[0038] Specifically, the present invention preferably installs two mouth corner expansion parts 3 detachably to the left and right sides of the frame part 2, and installs the pressure plate part 4 detachably to the upper and lower sides of the frame part 2. When the patient's oral cavity expansion and inspection is needed, the disinfected frame part 2 is put into the patient's mouth, and the expansion grooves 31 of the mouth corner expansion parts 3 on the left and right sides will be inserted into the patient's mouth corners to open the patient's mouth corners, and the upper and lower pressure plate parts 4 will contact the teeth and upper and lower lips in the oral cavity. At this time, the support part 1 will be inserted into the patient's lower jaw to fix the frame part 2, and then the expansion adjustment mechanism 5 located inside the frame part 2 is toggled as needed. At this time, the expansion adjustment mechanism 5 can synchronously adjust the left and right mirror-symmetrical mouth corner expansion parts 3 and the upper and lower mirror-symmetrical pressure plate parts 4 to move toward the side away from the frame part 2 at the same time, thereby realizing the expansion of the patient's mouth corners, and at the same time, the patient's upper and lower lips and teeth can be expanded, so that medical staff can better examine and treat the patient's oral cavity, and at the same time, the expansion adjustment mechanism 5 located inside the frame part 2 can be adjusted. 2 The lowered pressing plate part 4 can press the patient's tongue tip to prevent the patient's tongue tip from tilting up when the medical staff examines the patient's oral cavity and affects the normal examination; at the same time, the expansion adjustment mechanism 5 can adjust the symmetrical mouth corner expansion part 3 separately to expand the patient's mouth corner separately, and can also adjust the upper and lower pressing plate parts 4 separately, so that the medical staff can adjust the size of the opening of the patient's upper and lower lips separately according to the needs of the examination, thereby increasing the use range and frequency of the oral expansion device of the present invention, and the medical staff can also remove the mouth corner expansion part 3 or the pressing plate part 4 from the frame part 2 as needed, and then the medical staff can use the oral expansion device of the present invention to expand the patient's mouth corner or upper and lower lips separately as needed, thereby further improving its wide application, and the expansion adjustment mechanism 5 is arranged inside the frame of the frame part 2, rather than at the center, so it will not interfere with the medical staff's oral examination or affect the accuracy of their examination.

[0039] In this embodiment, the expansion adjustment mechanism 5 includes a screw shaft 51, a gear part 52, a frame part 53, an airbag strip 54, a moving block 55 and a screw part 56. The four side walls of the frame part 2 are all plugged with screw shafts 51, and each screw shaft 51 is sleeved with a gear part 52 through a screw nut. Multiple gear parts 52 are placed in the cavity 21, and each gear part 52 is sleeved with a frame part 53. The inner wall of one side of the frame part 53 is provided with teeth 531 that mesh with the gear part 52. The outer ends of the screw shaft 51 extending on the left and right sides are connected to the mouth corner expansion support part 3. , the outer ends of the screw shaft 51 extending from the upper and lower sides are connected to the pressure plate part 4, the two ends of the square frame 53 are connected to the airbag strips 54, and the airbag strips 54 are connected to the moving block 55 slidably arranged in the cavity 21, the outer side of the cavity 21 is covered with a cover plate 22, and the four corners of the cover plate 22 are provided with arc guide grooves 23, and a screw member 56 is inserted in the arc guide groove 23, the inner end of the screw member 56 is threadedly connected to the moving block 55 and conflicts with the airbag strip 54, and the outer end of the screw member 56 The ring is attached to the outside of the arc guide groove 23;

[0040] Specifically, the outer end of the screw shaft 51 is connected to the mouth corner expansion part 3 and the pressure plate part 4 in a detachable manner. Therefore, when it is necessary to adjust the left and right symmetrical mouth corner expansion parts 3 to move away from each other, it is necessary to loosen the screw members 56 on the left and right outer sides of the frame member 2 so that the outer end of the screw member 56 is released from the outer wall of the arc guide groove 23. At this time, the inner end of the screw member 56 will lock and fix the airbag strip 54 on the moving block 55, and then the head of the screw member 56 at the lower left front side of the frame member 2 is pushed upward to make it rotate clockwise in the arc guide groove 23, and then the moving block 55 will drive the vertical frame member 53 in the cavity through the hardened airbag strip 54. The toothed portion 531 of the frame member 53 meshes with the toothed portion 531 of the gear portion 52, which drives the gear portion 52 to rotate, and then the screw shaft 51 is converted into a linear motion to drive the left corner of the mouth expansion support portion 3 to slide to the left, and at the same time, the head of the screw member 56 on the upper right front side of the frame member 2 is pushed downward to make it slide in the corresponding arc guide groove 23, and then the corresponding moving block 55 drives the vertically installed frame member 53 on the right side of the cavity 21 to slide downward through the hardened airbag strip 54, and then the gear portion 52 on the right side of the cavity 21 drives the screw shaft 51 on the right side to slide horizontally, so as to facilitate the right corner of the mouth expansion support portion 3 to slide downward. The screw shaft 51 is symmetrically arranged at the upper and lower corners of the patient's mouth, and the screw shaft 51 is symmetrically arranged at the upper and lower corners according to the size of the pressing plate 4. Then, another screw member 56 located at the upper right front corner of the frame member 2 is turned clockwise, so that the square frame member 53 arranged horizontally above slides clockwise, and then the rotation of the gear portion 52 drives the screw shaft 51 to move linearly, so that the upper pressing plate portion 4 moves upward. Similarly, another screw member 56 at the lower left front corner is turned, and the horizontal square frame member 53 is also turned clockwise, and then the rotation of the gear portion 52 drives the screw shaft 51 to move linearly. The lower pressure plate portion 4 is moved downward, so that the upper and lower pressure plate portions 4 can be adjusted away from each other, so as to facilitate the upward and downward expansion adjustment of the patient's oral cavity. When the mouth corner expansion portion 3 or the pressure plate portion 4 is expanded and adjusted, the screw member 56 is twisted to lock it tightly against the outer side of the cover plate 22, and the airbag strip 54 can be locked and fixed at the same time to prevent the moving block 55 from sliding freely in the cavity 21. Since a series of components such as the screw shaft 51 and the gear portion 52 are all arranged on the front side of the frame member 2 and most of them are hidden and installed through the cover plate 22, the medical staff will not be affected in accurately examining and treating the expanded oral cavity.

[0041] In this embodiment, the airbag strips 54 located at two of the corners in the cavity 21 are of an integrally formed design, and the airbag strips 54 slide through the two sides of the moving block 55 and are respectively connected to the ends of the vertical frame member 53 and the horizontal frame member 53. The airbag strips 54 located at the other two corners in the cavity 21 are of a segmented design, one end of the airbag strip 54 is connected to the other end of the vertical frame member 53, and the other end of the airbag strip 54 is connected to the other end of the horizontal frame member 53. The two segmented airbag strips 54 are staggered front and back, and the free ends of the two are fitted front and back. A moving block 55 is slidably sleeved on each airbag strip 54, and a square slot 551 is provided on the moving block 55 sleeved on the airbag strip 54 located in the rear segment, and the width of the square slot 551 is greater than the thickness of the two airbag strips 54.

[0042] Specifically, when the left-right symmetrical mouth corner expansion support part 3 and the top-bottom symmetrical pressing plate part 4 need to slide away from or towards the side wall of the frame member 2 at the same time, the airbag strip 54 is in a hardened state, and the segmented airbag strip 54 located at the rear side is connected to the vertical square frame member 53, and the airbag strip 54 located at the front side is connected to the horizontal square frame member 53, thereby loosening the screw member 5 on the corresponding moving block 55 on the segmented airbag strip 54 located at the rear side. 6, so that it is separated from the airbag strip 54 of the rear segment, and then the screw member 56 corresponding to the moving block 55 is moved to slide it to the suspended alignment position of the front and rear airbag strips 54 of the segment, and at this time, the suspended ends of the front and rear airbag strips 54 are both located in the square slot 551, and then the screw member 56 is twisted to make it close to the end of the front airbag strip 54, and at this time, the end of the front airbag strip 54 will press the airbag strip 54 attached to the rear side. 4, and then the tightened screw member 56 will lock and fix the two segmented airbag strips 54 on the same moving block 55, and the airbag strips 54 located at the upper left corner and the lower right corner of the cavity 21 are integrally formed, so the four square frame members 53 located inside the cavity 21 will be connected to each other to form a whole, and then two of the screw members 56 can be randomly moved, at this time the moving block 55 will drive the airbag strips 54 that are connected to each other and integrally formed to slide in the cavity 21, and then the four square frame members 53 can be driven to slide in the cavity 21, so that the left-right symmetrical mouth corner expansion support part 3 and the upper-lower symmetrical pressure plate part 4 can be expanded and adjusted synchronously, so that the medical staff can accurately examine and treat the patient's oral cavity after expansion, and the mouth corner expansion support part 3 and the pressure plate part 4 can be synchronously reduced and adjusted, so that the medical staff can quickly remove the oral cavity expansion device from the patient's oral cavity in a safe state;

[0043] When it is necessary to expand the corner expansion part 3 or the pressure plate part 4 separately, it is necessary to loosen the screw member 56 locked on the segmented airbag strip 54, so that the moving block 55 slides to the rear segmented airbag strip 54, and then the screw member 56 is pressed against the rear end airbag strip 54. At this time, the gas in the one-piece airbag strip 54 needs to be extracted to soften it, and then the corresponding screw member 56 on the one-piece airbag strip 54 is locked on the arc guide groove 23, so that the corresponding moving block 55 does not slide freely, and then the screw member 56 on the corresponding moving block 55 on the rear segmented airbag strip 54 is moved. At this time, the vertical frame member 53 will slide upward or downward, and the softened air strip connected above the frame member 53 will be compressed or stretched, so it will not interfere. The normal up and down sliding of the vertical frame member 53 will not affect the normal expansion or contraction adjustment of the left and right corner mouth expansion parts 3. At the same time, the screw member 56 on the moving block 55 corresponding to the front side segmented airbag strip 54 is moved to drive the horizontal frame member 53 to slide horizontally, which will cause the upper and lower symmetrical pressure plate part 4 to expand or contract and adjust. Since the one-piece airbag strip 54 is in a softened state, it can be shrunk or stretched and adjusted, and will not affect the separate expansion or contraction adjustment of the corner mouth expansion part 3 or the pressure plate part 4, thereby further improving the convenience and scope of use of the oral expansion device of the present invention. Since the segmented airbag strip 54 is staggered front and back, it will not interfere with the sliding adjustment of the segmented airbag strip 54 on the frame member 53 in the cavity 21.

[0044] In this embodiment, an airbag plate 57 is provided on the lower surface of the pressure plate portion 4 located below the frame member 2, and a skin-friendly layer is detachably connected to the lower surface of the airbag plate 57. A connecting inflatable component 6 is provided on the support portion 1, and the connecting inflatable component 6 is respectively connected to the airbag plate 57 and the airbag strip 54;

[0045] Specifically, when the lower pressure plate portion 4 fits and expands the lower lip and lower teeth, the skin-friendly layer on the lower surface of the airbag plate 57 will contact the tip of the tongue, and then the connected inflation component 6 is controlled to work, so that gas is filled into the airbag plate 57, thereby causing it to expand a small distance, thereby facilitating the pressure plate portion 4 to expand the teeth and lips while pressing down on the tongue to prevent the tip of the tongue from curling up and affecting the medical staff's oral examination after expansion, and the connected inflation component 6 can extract or inflate the gas in the airbag strip 54, thereby facilitating the airbag strip 54 to shrink or expand and harden in the cavity 21.

[0046] In this embodiment, the connecting inflation component 6 includes an airbag ball 61, an air guide main pipe 62, a connecting pipe 63 and an air distribution pipe 64. At least two of the airbag balls 61 are fixed on the support portion 1, and a one-way valve is installed on the airbag ball 61. The airbag ball 61 is connected to the air guide main pipe 62 arranged inside the support portion 1, and the top end of the air guide main pipe 62 is connected to the connecting pipe 63. The connecting pipe 63 is connected to the airbag plate 57 and the integrally formed airbag strip 54 through two air distribution pipes 64, and a diversion blocking component 7 is provided on the connecting pipe 63.

[0047] Specifically, the air distribution pipes 64 on the two groups of airbag balls 61 are respectively connected to the two integrally formed airbag strips 54, and the other two air distribution pipes 64 are connected to the same airbag plate 57. When it is necessary to inflate the airbag plate 57, the flow-dividing and blocking assembly 7 rotates in the connecting pipe 63 to connect the air guide main pipe 62 with the air distribution pipes 64 connected to the airbag plate 57. Then, the airbag ball 61 is pressed, and the gas inside it is filled into the airbag plate 57 through the air guide main pipe 62, the flow-dividing and blocking assembly 7 and the air distribution pipes 64, so that the airbag plate 57 expands as needed to stick to the tip of the tongue. The one-way valve on the airbag ball 61 will only add gas to the inside of the airbag ball 61, and then the gas in the airbag plate 57 can be released through the diverter sealing component 7, which is convenient for reducing the pressing force of the inflated airbag plate 57 on the tongue tip, and it is also convenient for taking out the pressure plate part 4. After the diverter sealing component 7 connects the air distribution pipe 64 connected to the airbag strip 54 and the air guide main pipe 62, the pressure of the airbag ball 61 can add gas to the one-piece airbag strip 54 to harden it in the cavity 21; and the diverter sealing component 7 can release the gas in the airbag strip 54 to soften it for easy contraction or expansion.

[0048] In this embodiment, the diversion plugging assembly 7 includes a connecting plug 71, an externally threaded tube 72, a conducting plug 73, a sealing ring 74 and a spring member 75. The connecting plug 71 is rotatably inserted into the connecting tube 63, and three connecting holes 711 are opened on the tube wall of the connecting plug 71. The distance between the two connecting holes 711 opened on the upper tube wall of the connecting plug 71 is smaller than the distance between the pipe openings of the two gas dividing pipes 64 connected to the connecting tube 63. The outer end of the connecting plug 71 is connected with the externally threaded tube 72, and the externally threaded tube 72 is threadedly connected and extends out of the supporting portion 1. A conducting plug 73 with sealed ends is slidably inserted in the externally threaded tube 72, and a plurality of air leakage holes 731 are opened on the outer tube walls of the two ends of the conducting plug 73. The outer tube opening of the conducting plug 73 is sealed with a sealing ring 74, and a spring member 75 is connected between the sealing ring 74 and the outer side surface of the supporting portion 1.

[0049] Specifically, when the airbag plate 57 needs to be inflated and expanded, the external threaded tube 72 needs to be rotated to drive the connecting tube 71 to rotate in the connecting tube 63. Since the outer tube wall of the connecting tube 71 and the inner tube wall of the connecting tube 63 rotate and fit together, one of the connecting holes 711 located above will be aligned with the tube mouth of the air distribution tube 64 connected to the airbag plate 57, and the other connecting hole 711 will be misaligned with the tube mouth of the air distribution tube 64 connected to the airbag strip 54, and be in a sealed fit state. At this time, the connecting hole 711 below the lower connecting tube 71 will always be connected to the tube mouth of the gas main pipe 62, and then pressing the airbag ball 61 will cause the gas inside it to pass through the gas main pipe 62, the connecting tube 71 and the air distribution pipe 64 enters into the airbag plate 57 to realize the inflation of the airbag plate 57, and when the connecting cannula 71 is rotated again, the three connecting holes 711 are staggered with the pipe openings of the two air distribution pipes 64 and the main air guide pipe 62 respectively, and then the main air guide pipe 62 and the air distribution pipe 64 can be blocked and separated to prevent the medical staff from mistakenly pressing the airbag ball 61, which causes the airbag plate 57 to inflate again, and then affects the airbag plate 57 on the pressure plate part 4. The limited pressing of the tongue tip, and when it is necessary to inflate the airbag strip 54 to make it expand and harden, repeat the above steps to make one of the connecting holes 711 correspond to the air distribution pipe 64 connected to the airbag strip 54, and then press the airbag ball 61, so that the airbag strip 54 can be inflated, expanded and hardened;

[0050] When it is necessary to deflate and soften the airbag plate 57 or the airbag strip 54, the connecting hole 711 on the connecting tube 71 is aligned with the air distribution pipe 64 that needs to be deflated, and then the sealing ring 74 is pressed, so that the connecting tube 73 will slide into the connecting tube 71, and the spring member 75 will be compressed at this time, and the connection of the spring member 75 will not affect the normal rotation of the external threaded tube 72, and then the deflation hole 731 on the connecting tube 73 will be aligned with the connecting tube 71, and then the gas in the airbag plate 57 or the airbag strip 54 will enter the connecting tube 71 through the air distribution pipe 64, and then be discharged through the deflation hole 731 provided on the connecting tube 73, so as to facilitate the softening operation of the airbag plate 57 or the airbag strip 54. After the sealing ring 74 is loosened, the elastic restoring force of the spring member 75 will The connecting tube 73 is pushed to slide outward in the external threaded tube 72, so that the air vent hole 731 located in the connecting tube 71 slides and seals into the external threaded tube 72, so as to seal the connecting tube 73. Since the hole distance between the two connecting holes 711 opened on the upper tube wall of the connecting tube 71 is smaller than the distance between the pipe openings of the two air distribution tubes 64, when the connecting tube 71 is rotated, only one of the connecting holes 711 can be aligned with the pipe opening of one of the air distribution tubes 64, and the other air distribution tube 64 will be in a sealed state, so that when the airbag ball 61 is pressed to inflate the airbag plate 57 or the airbag strip 54, or when the airbag plate 57 or the airbag strip 54 is deflated, there will be no interference between the two, thereby improving the safety of the oral expansion device of the present invention.

[0051] In this embodiment, the support part 1 is an L-shaped structure, and a skin-friendly pad is provided on its inner side; specifically, the design of the skin-friendly pad can prevent the support part 1 from causing damage to the patient's lower jaw when it is stuck in the patient's lower jaw, and can also improve the comfort of using the oral expansion device.

[0052] In this embodiment, a sterile cloth is detachably mounted on the groove wall of the expansion groove 31; specifically, the sterile cloth is preferably made of absorbent material, so that when the expansion groove 31 is stuck on the lips at the corner of the mouth, the sterile cloth can contact the lips, so that it can absorb the saliva secreted by the lips, thereby preventing excessive saliva secretion from affecting the oral examination.

[0053] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0054] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An oral cavity expansion device for oral examination, characterized in that: It comprises a support portion (1), on which a frame member (2) is fixedly arranged; A mouth corner expansion and support portion (3), wherein two of the mouth corner expansion and support portions (3) are mirror-imaged and disposed on the outer walls of both sides of the frame member (2), and expansion and support grooves (31) are provided on the mouth corner expansion and support portions (3); A pressure plate portion (4), wherein two of the pressure plate portions (4) are mirror-imaged and disposed on the other two outer walls of the frame member (2); An expansion and support adjustment mechanism (5), wherein the expansion and support adjustment mechanism (5) is placed in a cavity (21) provided in the frame member (2), and the expansion and support adjustment mechanism (5) is connected to the mirror image of the mouth corner expansion and support portion (3) and the mirror image of the pressure plate portion (4).

2. The oral cavity expansion device for oral cavity inspection according to claim 1, characterized in that: The expansion and support adjustment mechanism (5) comprises a screw shaft (51), a gear part (52), a frame part (53), an airbag strip (54), a moving block (55) and a screw part (56). The screw shafts (51) are inserted into the four side walls of the frame part (2), and each screw shaft (51) is sleeved with a gear part (52) through a screw nut. A plurality of gear parts (52) are placed in the cavity (21), and each gear part (52) is sleeved with a frame part (53). A tooth (531) meshing with the gear part (52) is provided on the inner wall of one side of the frame part (53). The outer ends of the screw shaft (51) extending on the left and right sides are connected to the mouth corner expansion and support part (3). The outer ends of the screw shaft (51) extending from the upper and lower sides are connected to the pressure plate part (4), and the two ends of the square frame part (53) are connected to the airbag strip (54), and the airbag strip (54) is connected to the moving block (55) slidably arranged in the cavity (21), and the outer side surface of the cavity (21) is covered with a cover plate (22), and the four corners of the cover plate (22) are provided with arc guide grooves (23), and a screw member (56) is inserted in the arc guide groove (23), and the inner end of the screw member (56) is threadedly connected to the moving block (55) and contacts the airbag strip (54), and the circular ring of the outer end of the screw member (56) fits the outside of the arc guide groove (23).

3. The oral cavity expansion device for oral cavity inspection according to claim 2, characterized in that: The airbag strips (54) located at two of the corners in the cavity (21) are of an integrally formed design, and the airbag strips (54) slide through both sides of the moving block (55) and are respectively connected to the ends of the vertical frame member (53) and the horizontal frame member (53). The airbag strips (54) located at the other two corners in the cavity (21) are of a segmented design, with one end of the airbag strip (54) connected to the other end of the vertical frame member (53), and the other end of the airbag strip (54) connected to the other end of the vertical frame member (53). The end of the airbag strip (54) is connected to the other end of the horizontal square frame (53), the two segmented airbag strips (54) are staggered front and back, and the free ends of the two are arranged to fit together front and back, each airbag strip (54) is slidably sleeved with a moving block (55), and the moving block (55) sleeved on the airbag strip (54) located on the rear side segment is provided with a square slot (551), and the width of the square slot (551) is greater than the thickness of the two airbag strips (54).

4. The oral cavity expansion device for oral cavity inspection according to claim 2, characterized in that: An airbag plate (57) is arranged on the lower surface of the pressure plate portion (4) located below the frame member (2), and a skin-friendly layer is detachably connected to the lower surface of the airbag plate (57). A connecting inflation component (6) is arranged on the support portion (1), and the connecting inflation component (6) is respectively connected to the airbag plate (57) and the airbag strip (54).

5. The oral cavity expansion device for oral cavity inspection according to claim 4, characterized in that: The connecting inflation component (6) comprises an airbag ball (61), an air guide main pipe (62), a connecting pipe (63) and an air distribution pipe (64). At least two of the airbag balls (61) are fixedly arranged on the support portion (1), and a one-way valve is installed on the airbag ball (61). The airbag ball (61) is connected to the air guide main pipe (62) arranged inside the support portion (1), and the top end of the air guide main pipe (62) is connected to the connecting pipe (63). The connecting pipe (63) is connected to the airbag plate (57) and the integrally formed airbag strip (54) through two air distribution pipes (64), and a diversion blocking component (7) is arranged on the connecting pipe (63).

6. The oral cavity expansion device for oral cavity inspection according to claim 5, characterized in that: The flow dividing and blocking assembly (7) comprises a connecting insert (71), an externally threaded tube (72), a conducting insert (73), a sealing ring (74) and a spring member (75); the connecting insert (71) is rotatably inserted into the connecting tube (63); and three connecting holes (711) are provided on the tube wall of the connecting insert (71); the distance between two connecting holes (711) provided on the upper tube wall of the connecting insert (71) is smaller than the distance between the tube openings of the two gas dividing tubes (64) connected to the connecting tube (63). The outer end of the connecting tube (71) is connected to an external threaded tube (72), and the external threaded tube (72) is threadedly connected and extends out of the support portion (1). A connecting tube (73) with sealed ends is slidably inserted into the external threaded tube (72), and the outer tube walls of the two ends of the connecting tube (73) are provided with a plurality of air leakage holes (731). The outer tube opening of the connecting tube (73) is sealed with a sealing ring (74), and a spring member (75) is connected between the sealing ring (74) and the outer side surface of the support portion (1).

7. The oral cavity expansion device for oral cavity inspection according to claim 1, characterized in that: The support part (1) is an L-shaped structure, and a skin-friendly cushion layer is arranged on its inner side.

8. The oral cavity expansion device for oral cavity inspection according to claim 1, characterized in that: A sterile cloth is detachably mounted on the groove wall of the expansion groove (31).

Images