Oral cavity internal searchlight for oral cavity observation

Abstract

The invention relates to the technical field of medical instruments, and discloses an oral cavity internal searchlight for oral cavity observation, which comprises a shell with a hollow structure, and a plurality of lamp group units which are uniformly distributed and wound on the peripheral side of the shell and can selectively reciprocate along the axial direction of the shell; the pesticide spraying unit is arranged in the annular structure formed by arranging the lamp set units in the circumferential direction of the shell and can selectively spray different amounts of pesticide liquid outwards; the control unit is configured to be used for controlling the at least one lamp set unit to move to the outside of the shell in the axial direction of the shell, performing searchlighting on the internal environment of the oral cavity, and controlling the medicine spraying unit to selectively spray quantitative liquid medicine towards the searchlighting position while the lamp set unit performs searchlighting. In the oral examination process, liquid medicine can be directionally sprayed according to the oral disease position.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly relates to an oral internal searchlight for oral observation. Background Art

[0002] Stomatology, one of the medical discipline classifications, mainly conducts: orthodontics, cold light whitening, cosmetic restoration, removable partial dentures, acrylic dentures, chrome cobalt alloy dentures, titanium alloy steel dentures and various precision accessories, immediate dentures, complete dentures. At the same time, it conducts pulp diseases, periodontal diseases, periapical diseases, root canal treatment, glass ionomer, composite resin light-curing tooth filling and the prevention and treatment of children's dental diseases. With the continuous improvement of living standards, the diet structure of modern people has changed greatly. Coupled with other various factors such as the deterioration of air quality, oral diseases occur frequently, and there are more and more patients with oral diseases in hospitals.

[0003] Therefore, before treating oral diseases, medical staff will check the inside of the patient's oral cavity. During the inspection operation, medical staff use a special searchlight and insert it into the patient's oral cavity to check different parts of the affected area in the narrow space inside the patient's oral cavity. During the inspection process, medical staff move slightly in the narrow space inside the patient's oral cavity. However, during the movement, the searchlight for oral inspection will come into frequent contact with the soft tissues or saliva in the patient's oral cavity. If the oral saliva attached to the lamp head is not cleaned in time, it will directly affect its lighting effect and hinder the inspection process.

[0004] Secondly, during the process of completing the oral cavity inspection, some oral diseases are blocked due to inflammation or other reasons. At this time, it is necessary for medical staff to spray liquid medicine into the patient's oral cavity to relieve the inflammatory symptoms before they can better observe the oral diseases themselves. However, for oral medication and oral cavity inspection, medical staff need to hold the searchlight in one hand and the medicine tube in the other hand, and under the illumination of the searchlight, spray the liquid medicine in the medicine bottle into the oral cavity. Due to the obstruction of the light during medication, the line of sight of medical staff is blocked, resulting in the inability to accurately spray the liquid medicine at the position of the oral disease, and the treatment effect of the liquid medicine is poor. Therefore, there is an urgent need for an oral internal searchlight for oral observation that can both achieve observation and perform targeted spraying of liquid medicine during observation. Summary of the Invention

[0005] The present invention aims to provide an oral internal searchlight for oral observation, which can perform targeted spraying of liquid medicine according to the position of oral diseases during the oral cavity inspection process.

[0006] To achieve the above object, each aspect of the present application can be implemented in one or more of the following embodiments:

[0007] 1) An oral internal searchlight for oral observation, including a hollow-structured housing, and:

[0008] A plurality of lamp group units are evenly arranged around the circumferential side of the housing and can selectively move back and forth in the axial direction of the housing;

[0009] A medicine spraying unit is arranged within an annular structure formed by the plurality of lamp group units arranged in the circumferential direction of the housing and can selectively spray different amounts of liquid medicine outward;

[0010] A control unit is configured to control at least one lamp group unit to move to the outside of the housing in the axial direction of the housing and illuminate the internal environment of the oral cavity. While the lamp group unit is illuminating, the control unit controls the medicine spraying unit to selectively spray a quantitative amount of liquid medicine towards the illuminated position.

[0011] Compared with the prior art, the present invention utilizes a plurality of lamp group units that move back and forth in the axial direction, move to the outside of the housing and illuminate the internal environment of the oral cavity. During the illumination process, saliva in the internal environment of the oral cavity adheres to the lamp group units, reducing the illumination effect of the lamp group units. At this time, medical staff can move the lamp group unit back according to requirements and push other lamp group units to move to the outside of the housing to continue illuminating the internal environment of the oral cavity, so as to ensure continuous examination of the patient's oral cavity;

[0012] During the examination process, when medical staff observes an oral disease that is difficult to judge in the oral cavity and needs to apply medicine to relieve the inflammation in the patient's oral cavity for better observation of the oral disease, at this time, after the medical staff initially irradiates the oral environment through the lamp group unit for observation, according to the degree of inflammation at the illuminated position of the lamp group unit, the control unit controls the medicine spraying unit to spray a quantitative amount of liquid medicine towards the illuminated position. If the degree of inflammation is relatively severe, then the medicine spraying unit sprays a large amount of liquid medicine towards the illuminated position. After spraying is completed, the oral disease is observed again through the lamp group unit; therefore, the present invention can achieve directional spraying of liquid medicine according to the position of the oral disease during the oral examination process.

[0013] 2) An internal illuminating lamp for oral observation according to 1), wherein:

[0014] The housing includes a handle housing and a probe. The end of the handle housing is fixedly connected to the end of the probe to form an integral structure. The control unit includes a plurality of movement control members arranged on the handle housing and evenly distributed along its circumferential direction. The movement control members correspond to the lamp group units one by one, and the lamp group units can move outward in the axial direction of the probe and illuminate the internal environment of the oral cavity.

[0015] The integrally formed handle housing and probe rod designed in the present invention are convenient for medical staff to use. The handle housing facilitates the medical staff to hold and improves the convenience of use. The probe rod can move back and forth and up and down according to the oral environment at different depths in the patient's oral cavity that the medical staff need to view. At the same time, combined with the lamp group unit that moves outward along the axial direction of the probe rod to illuminate the oral environment of the patient, enabling the medical staff to more clearly observe the state of the patient's oral diseases;

[0016] The lamp group units of the present invention correspond one by one with the movement control parts, so that during the illumination process, the medical staff can, according to the need to illuminate different depth positions of oral diseases, control the lamp group unit matched with it through the movement control part to move outward along the axial direction of the probe rod for illumination.

[0017] 3) According to the internal oral illuminator for oral observation described in 2), wherein:

[0018] Several axially extending sliding holes are evenly distributed along the circumferential direction of the probe rod. The sliding holes correspond one by one with the lamp group units. Each lamp group unit includes a transparent lamp cover. An LED lamp is installed in the lamp cover. A connecting block passing through the sliding hole is provided on the side of the lamp cover facing the probe rod. The end of the connecting block is connected to the movement control part. By driving the connecting block along the axial direction of the sliding hole through the movement control part, the lamp cover attached to the surface of the probe rod is driven to reciprocate.

[0019] The present invention designs the transparent lamp cover to facilitate the LED lamp to emit light, and at the same time plays a role in protecting the LED lamp to prevent the saliva in the patient's oral cavity from sticking to the LED lamp. At the same time, combined with the connection between the connecting block on the lamp cover and the movement control part, the connecting block is driven to move along the axial direction of the sliding hole through the movement control part. During the axial movement of the connecting block in the sliding hole, the lamp cover is driven to fit on the surface of the probe rod and move along the axial direction of the probe rod, so as to realize the lamp cover moving outward and extending out of the probe rod, and the LED lamp in the lamp cover illuminates the inside of the patient's oral cavity.

[0020] 4) According to the internal oral illuminator for oral observation described in 2), wherein:

[0021] The movement control part includes several axially extending inner sliding holes opened on the handle housing. The several inner sliding holes are evenly distributed along the circumferential direction of the handle housing. A button block is fixed on the outer surface of each inner sliding hole. An outer sliding block corresponding to the inner sliding hole is opened on the button block. A moving block is slidably connected in the outer sliding block. An engaging block extending into the handle housing is provided on the side of the moving block facing the handle housing. The end of the engaging block is connected to a first rack arranged along the axial direction of the handle housing. The first rack meshes with a gear arranged in the handle housing. The gear meshes with a second rack arranged in the handle housing and extending towards the inside of the probe rod. The second rack is connected to the lamp group unit.

[0022] During use, medical staff select to push the moving blocks circumferentially arranged on the handle housing according to the position for illuminating the oral cavity. During the movement of the moving blocks, the first rack connected thereto is driven to reciprocate axially along the handle housing. During the movement of the first rack, the first rack pushes the gear to rotate forward and backward, and the forward and backward rotation of the gear drives the second gear to reciprocate axially along the handle housing towards the probe rod, so as to realize the extension and retraction of the lamp group unit along the axial direction on the surface of the probe rod. Therefore, medical staff can selectively control one or more lamp group units to observe the inside of the patient's oral cavity.

[0023] 5) An internal oral cavity illuminating lamp for oral cavity observation according to 1), wherein a medicine spraying unit is arranged within a ring structure formed by arranging several lamp group units along the circumferential direction of the housing and is capable of selectively spraying different amounts of liquid medicine outward, and includes:

[0024] Several medicine spraying tubes are arranged within the ring structure and are capable of conveying liquid medicine outward;

[0025] A medicine storage box is arranged within the housing, stores liquid medicine, and is capable of reciprocating axially along the housing;

[0026] An adapter opening and closing structure is arranged between several medicine spraying tubes and the medicine storage box, so that during the movement of the medicine storage box, it is connected to several medicine spraying tubes, and the liquid medicine in the medicine storage box is driven to be conveyed into at least one medicine spraying tube.

[0027] The medicine spraying unit of the present invention can convey liquid medicine into the patient's oral cavity and clean and treat the patient's oral diseases through the medicine spraying tubes arranged within the ring structure formed by arranging several lamp group units along the axial direction of the housing; by moving the medicine storage box axially along the housing, the adapter opening and closing structure is connected to the medicine spraying tubes. Under the action of the adapter opening and closing structure, the liquid medicine stored in the medicine storage box is conveyed into at least one medicine spraying tube, so that the medicine spraying tubes can convey liquid medicine outward, thereby achieving the medicine application operation during the illumination process.

[0028] 6) An internal oral cavity illuminating lamp for oral cavity observation according to 5), wherein:

[0029] The adapter opening and closing structure includes several elastic sealing discs and insertion tubes. The positions of the sealing discs correspond to the positions of the insertion tubes one by one. The sealing discs are arranged within the tube openings of the medicine spraying tubes facing the medicine storage box, the insertion tubes are arranged on the side surfaces of the medicine storage box facing the medicine spraying tubes, a drainage member is arranged between the insertion tubes and the medicine storage box, and during the movement of the medicine storage box, the insertion tubes are driven to penetrate through the sealing discs and extend into the medicine spraying tubes. The liquid medicine in the medicine storage box is introduced into different medicine spraying tubes through the drainage member, so that different medicine spraying tubes convey liquid medicine outward.

[0030] The connection and opening / closing structure of the present invention adopts a sealing disc installed inside the nozzle of the medicine spraying tube facing the medicine storage box, which can block the nozzle of the medicine spraying tube to prevent the transported liquid medicine from flowing back into the shell. At the same time, the positions of the insertion tubes on the side of the medicine storage box correspond one-to-one with the sealing disc, that is, the positions of the insertion tubes and the medicine spraying tubes correspond one-to-one. During the movement of the medicine storage box along the axial direction of the shell, the medicine storage box drives all the insertion tubes to move along the axial direction of the shell. The insertion tubes gradually approach the medicine spraying tube and overcome the elastic potential energy of the sealing disc to penetrate through the sealing disc and extend into the medicine spraying tube, thereby realizing the connection between the medicine storage box and several medicine spraying tubes.

[0031] After the medicine storage box is connected to several medicine spraying tubes, according to the needs of medical staff, the liquid medicine in the medicine storage box is controlled by the drainage member to be introduced into different medicine spraying tubes through the insertion tubes, so that the liquid medicine is transported outward through different medicine spraying tubes to clean or disinfect the positions of the patient's oral diseases with the liquid medicine.

[0032] 7) An internal oral searchlight for oral observation according to 6), wherein:

[0033] The drainage member includes a collecting pipe communicated with several insertion tubes. A moving frame is arranged between the collecting pipe and the medicine storage box. An infusion tube is arranged inside the moving frame. The two ends of the infusion tube are respectively communicated with the collecting pipe and the medicine storage box. A micro pump installed on the infusion tube is arranged inside the moving frame. An opening / closing button electrically connected to the micro pump is installed at the end of the medicine storage box away from the infusion tube. The opening / closing button is used to control the micro pump to start and transport the liquid medicine into the insertion tubes.

[0034] The opening / closing button in the present invention is part of the control unit. During the process of medical staff pushing the medicine storage box, the medicine storage box drives the collecting pipe and the insertion tubes to move synchronously along the axial direction through the moving frame, which can ensure that the insertion tubes move and insert into the medicine spraying tubes in a fixed state. At the same time, the moving frame is used to keep the infusion tube in a stable moving state and the installation position of the micro pump.

[0035] When the medical staff cannot push the medicine storage box anymore, it can be judged that the insertion tubes have been inserted into the medicine spraying tubes. Since the medical staff usually hold the shell in a horizontal state for oral search during the search process, the medicine storage box will also be in a horizontal state, causing some liquid medicine in the medicine storage box to enter the infusion tube. At this time, the micro pump is started through the opening / closing button, and the micro pump pumps this part of the liquid medicine into the insertion tubes and continuously transports the liquid medicine into the medicine spraying tubes through the insertion tubes.

[0036] Medical staff can achieve the delivery of liquid medicine by grasping the state of the housing. When the housing is tilted from top to bottom, the liquid medicine in its medicine storage box gathers at the inner bottom, causing there to be no liquid medicine in the infusion tube. At this time, the medicine spraying tube will stop delivering liquid medicine outward. When the housing is tilted from bottom to top, the liquid medicine in its medicine storage box gathers in the infusion tube, and the micro pump continuously delivers the liquid medicine into the medicine spraying tube. Such a design facilitates medical staff to control the delivery of liquid medicine by swinging the state of the housing.

[0037] 8) An intraoral searchlight for oral observation according to 7), wherein:

[0038] It further includes a support plate and a fixing sleeve arranged inside the housing. The support plate has several through holes for inserting the medicine spraying tubes. There are several springs between the support plate and the collecting tube. One end of each spring is located between adjacent medicine spraying tubes and is fixed on the support plate, and the other end is located between adjacent insertion tubes and is fixed on the collecting tube; the fixing sleeve is sleeved on the outer surface of the medicine storage box, and there is a clamping member between the medicine storage box and the fixing sleeve. When the clamping member moves axially along the medicine storage box to a suitable position on the fixing sleeve, the medicine storage box is clamped and connected to the fixing sleeve; when the medicine storage box is reset, the elastic potential energy of the spring drives the clamping member to disengage, separating the medicine storage box from the fixing sleeve.

[0039] When the present invention pushes the medicine storage box, the medicine storage box moves axially along the fixing sleeve and moves to a suitable position. At this time, the clamping member between the medicine storage box and the fixing sleeve clamps the two together, causing the medicine storage box to stay at this position and maintain a stable state. This facilitates the subsequent delivery of liquid medicine into the medicine spraying tube by the micro pump to clean or disinfect the diseased position inside the patient's oral cavity with liquid medicine;

[0040] After the medical staff finishes spraying medicine on the diseased position inside the oral cavity, the medical staff continues to push the medicine storage box axially along the fixing sleeve to move, causing the medicine storage box and the fixing sleeve to be initially separated. Then, the medical staff releases the force pushing the medicine storage box. The medicine storage box quickly moves in the opposite direction under the action of the elastic potential energy of several springs and drives the clamping member to disengage, causing the medicine storage box and the fixing sleeve to be completely separated and reset.

[0041] 9) An intraoral searchlight for oral observation according to 8), wherein:

[0042] The clamping member includes a limiting groove formed on the inner wall of the fixed sleeve and a storage groove formed on the outer surface of the medicine storage box. The bottom of the limiting groove is an inclined surface, and the overall longitudinal section is a right triangle. An elastic strip with elasticity is rotatably connected to the wall of the storage groove. When the medicine storage box moves along the axial direction of the fixed sleeve and the storage groove communicates with the limiting groove, the elastic strip is ejected from the storage groove into the limiting groove. The upper surface of the elastic strip is in inclined surface fit with the inclined surface in the limiting groove, and the end of the elastic strip abuts against the wall of the limiting groove, so that the elastic strip is clamped in the limiting groove and the movement of the medicine storage box stops.

[0043] During the movement of the medicine storage box of the present invention along the axial direction of the fixed sleeve, the elastic strip in the storage groove is pressed by the inner wall of the fixed sleeve and held in the storage groove. When the storage groove communicates with the limiting groove, the elastic strip in the storage groove is not subjected to the extrusion force of the inner wall of the fixed sleeve. Under the action of its own elastic potential energy, the elastic strip is ejected into the limiting groove. The upper surface of the elastic strip is in inclined surface fit with the inclined surface in the limiting groove. At the same time, the end of the elastic strip abuts against the wall of the limiting groove. By making the abutting force at the end of the elastic strip equal to the static reaction force of all the springs, the medicine storage box is kept stationary at this position after moving, so that the intubation tube can be inserted into the medicine spraying tube and stably convey the liquid medicine into the medicine spraying tube.

[0044] When the medicine storage box needs to be reset, the medical staff pushes the medicine storage box to move along the axial direction again and applies an extrusion force to all the springs. At this time, the elastic strip is in inclined surface fit with the bottom inclined surface of the limiting groove, forcing the elastic strip to be reset and pressed in the storage groove, so that the medicine storage box and the fixed sleeve are initially separated. Then, the medical staff releases the force for pushing the medicine storage box, and the medicine storage box is quickly ejected in the opposite direction under the action of the elastic potential energy of several springs, so that the elastic strip quickly passes through the limiting groove, and the medicine storage box and the fixed sleeve are completely separated and reset.

[0045] 10) An oral internal searchlight for oral observation according to 6), wherein:

[0046] A one-way valve is provided in each medicine spraying tube near the sealing disc. The sealing disc includes several rubber sheets. There is an overlapping layer between adjacent rubber sheets and they surround to form a petal shape. One end of all the rubber sheets is connected inside the pipe orifice of the medicine spraying tube, and the other ends surround each other to form an insertion opening for the intubation tube to pass through. The position of the insertion opening corresponds to the position of the one-way valve.

[0047] When the present invention is in use, the intubation tube is inserted into the medicine spraying tube through the socket in the sealing disc. The intubation tube conveys liquid medicine to the one-way valve in the medicine spraying tube. The liquid medicine flows outward along the axial direction of the medicine spraying tube through the one-way valve and is conveyed outward through the medicine spraying tube. In the present invention, the sealing disc is formed by overlapping and surrounding elastic rubber sheets to form a petal shape. On the one hand, it prevents the liquid medicine from flowing back. On the other hand, it is also convenient for the intubation tube to overcome the elastic potential energy of the rubber sheet, and then the rubber sheet plays a role in clamping the circumferential side of the intubation tube, preventing the intubation tube from being taken out by the elastic potential energy of the spring after insertion.

[0048] Meanwhile, in the present invention, the sealing disc combines with the one-way valve to control the liquid medicine reflux bidirectionally. When part of the liquid medicine flows out along the medicine spraying tube through the one-way valve, the one-way valve can prevent the reflux of this part of the liquid medicine, reducing the pressure on the liquid medicine prevented from refluxing by the rear sealing disc, thus ensuring that the sealing disc can prevent a small part of the liquid medicine from refluxing. The overall design is ingenious.

[0049] Compared with the prior art, the technical principle and technical effect of the present invention are as follows:

[0050] The present invention adopts a one-to-one structural design. The lamp group units arranged circumferentially on the housing are operated and moved one or more according to the usage requirements of medical staff, realizing one-to-one adaptation to the usage habits of different medical staff, with a wider application range. At the same time, within the annular structure where several lamp group units are arranged circumferentially, there is a medicine spraying unit for spraying medicine, cleaning, or anti-inflammatory treatment inside the patient's oral cavity. When medical staff need to spray medicine, clean, or perform anti-inflammatory treatment on the diseased part inside the patient's oral cavity, they only need to move the medicine storage box in the medicine spraying unit. The medicine storage box can store liquid medicine and also serve as a control end for starting the medicine spraying function. During the movement of the medicine storage box, an engagement opening and closing structure is designed to ensure the control of liquid medicine delivery and disconnection, and it can not only be opened and closed by button operation, but also the liquid medicine can be conveyed outward by swinging the inclination direction of the searchlight of the present invention by medical staff. Therefore, the present invention can achieve directional spraying of liquid medicine according to the location of oral diseases during oral examination. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] Figure 1 It is a schematic structural diagram of an oral cavity searchlight for oral cavity observation according to the present invention.

[0052] Figure 2 It is Figure 1 The sectional view taken along A - A in

[0053] Figure 3 It is Figure 2 The partial enlarged view at C1 in

[0054] Figure 4 It is Figure 3 The side view in the B direction in

[0055] Figure 5 It isFigure 2 Partial enlarged view at D1 in the figure. Specific implementation mode

[0056] The following is a further detailed description through specific implementation modes:

[0057] The reference numerals in the accompanying drawings of the specification include: handle housing 1, probe rod 2, lamp shade 3, first medicine spraying pipe 4, second medicine spraying pipe 5, outer sliding hole 6, moving block 7, medicine storage box 8, gear 9, first rack 10, connecting block 11, inner sliding hole 12, second rack 13, second one-way valve 14, first one-way valve 15, sliding hole 16, connecting block 17, infusion tube 18, micro pump 19, second insertion tube 20, second plug 21, spring 22, fixed sleeve 23, support plate 24, second sealing disc 25, first sealing disc 26, socket 27, limiting groove 28, elastic strip 29, storage groove 30, opening and closing button 31, medicine adding port 32.

[0058] Now, reference will be made in detail to the embodiments disclosed by the present invention. The examples disclosed by the present invention are described herein and illustrated in the accompanying drawings. Although the present disclosure will be described in conjunction with the embodiments and / or examples, they do not limit the present disclosure to these embodiments and / or examples. On the contrary, the present invention disclosure covers alternatives, modifications, and equivalents.

[0059] In, for example Figure 1 and Figure 2 In the embodiment generally shown, an oral interior searchlight for oral observation in this embodiment includes a hollow-structured housing, as well as several lamp group units, a medicine spraying unit, and a control unit. Among them, several lamp group units are evenly distributed around the circumference of the housing and can selectively move back and forth along the axial direction of the housing; the medicine spraying unit is arranged within the annular structure formed by several lamp group units arranged along the circumferential direction of the housing and can selectively spray different amounts of liquid medicine outward; the control unit is configured to control at least one lamp group unit to move to the outside of the housing along the axial direction of the housing and search the oral interior environment. While the lamp group unit is searching, the control unit controls the medicine spraying unit to selectively spray a fixed amount of liquid medicine towards the searching position.

[0060] Compared with the prior art, in this embodiment, several lamp group units that move back and forth along the axial direction move to the outside of the housing and search the oral interior environment. During the search process, saliva in the oral interior environment adheres to the lamp group units, reducing the lighting effect of the lamp group units. At this time, medical staff can move the lamp group unit back according to needs and push other lamp group units to move to the outside of the housing to continue searching the oral interior environment, which can ensure continuous examination of the patient's oral interior;

[0061] During the inspection process, medical staff observed an oral disease that was difficult to judge inside the oral cavity. It was necessary to apply medicine to relieve the inflammation inside the patient's oral cavity for better observation of the oral disease. At this time, after the medical staff initially irradiated the oral cavity environment with the lamp group unit for observation, according to the degree of inflammation at the search position of the lamp group unit, the control unit controlled the spraying unit to spray a quantitative amount of liquid medicine towards the search position. If the degree of inflammation was severe, a large amount of liquid medicine was sprayed towards the search position through the spraying unit. After the spraying was completed, the oral disease was observed again through the lamp group unit. Therefore, this embodiment can achieve directional spraying of liquid medicine according to the position of the oral disease during the oral inspection process.

[0062] See Figure 1 As shown, in this embodiment, the housing includes a handle housing 1 and a probe rod 2. The end of the handle housing 1 is fixedly connected to the end of the probe rod 2 to form an integrated structure. The control unit includes several movement control parts arranged on the handle housing 1 and evenly distributed along its circumferential direction. The movement control parts correspond to the lamp group unit one by one. The lamp group unit can move outward along the axial direction of the probe rod 2 and search the internal environment of the oral cavity.

[0063] The integrally formed handle housing 1 and probe rod 2 designed in this embodiment are convenient for medical staff to use. The handle housing 1 is convenient for medical staff to hold, improving the convenience of its use. The probe rod 2 can move back and forth and up and down according to the medical staff's need to view the oral cavity environment at different depths of the patient's oral cavity. At the same time, combined with the lamp group unit that moves outward along the axial direction of the probe rod 2 to search the patient's oral cavity environment, medical staff can more clearly observe the state of the patient's oral disease.

[0064] The lamp group unit of this embodiment corresponds to the movement control part one by one, so that during the search process, medical staff can, according to the need to search for oral diseases at different depths, control the matched lamp group unit through the movement control part to move outward along the axial direction of the probe rod 2 for search.

[0065] Secondly, several axially extending sliding holes 16 are evenly distributed along the circumferential direction of the probe rod 2. The sliding holes 16 correspond to the lamp group unit one by one. Each lamp group unit includes a transparent lampshade 3. An LED lamp is installed inside the lampshade 3. A connecting block 17 passing through the sliding hole 16 is provided on the side of the lampshade 3 facing the probe rod 2. The end of the connecting block 17 is connected to the movement control part. The movement control part drives the connecting block 17 to drive the lampshade 3 attached to the surface of the probe rod 2 to reciprocate along the axial direction of the sliding hole 16.

[0066] In this embodiment, the designed transparent lamp cover 3 facilitates the LED lamp to emit light, and at the same time plays a role in protecting the LED lamp, preventing saliva in the patient's oral cavity from sticking to the LED lamp. At the same time, the connecting block 17 on the lamp cover 3 is connected to the moving control member, and the moving control member drives the connecting block 17 to move along the axial direction of the sliding hole 16. During the axial movement of the connecting block 17 in the sliding hole 16, the lamp cover 3 is driven to fit the surface of the probe 2 and move along the axial direction of the probe 2, so as to realize the outward movement of the lamp cover 3 to extend out of the probe 2, and the LED lamp in the lamp cover 3 is used to illuminate the inside of the patient's oral cavity.

[0067] See Figure 2 As shown, the moving control member in this embodiment includes several axially extending inner sliding holes 12 opened on the handle housing 1. The several inner sliding holes 12 are evenly distributed along the circumferential direction of the handle housing 1. A button block is fixed on the outer surface of each inner sliding hole 12. An outer slider corresponding to the inner sliding hole 12 is opened on the button block. A moving block 7 is slidably connected inside the outer slider. A switch electrically connected to the LED lamp is installed on the moving block 7. An engaging block 11 extending into the handle housing 1 is provided on the side of the moving block 7 facing the handle housing 1. The end of the engaging block 11 is connected to a first rack 10 arranged along the axial direction of the handle housing 1. The first rack 10 meshes with a gear 9 arranged inside the handle housing 1. The gear 9 meshes with a second rack 13 arranged inside the handle housing 1 and extending towards the probe 2. The second rack 13 is connected to the lamp group unit.

[0068] During use, the medical staff selects to push the moving block 7 arranged circumferentially on the handle housing 1 according to the position of illuminating the oral cavity. During the movement of the moving block 7, the connected first rack 10 is driven to reciprocate along the axial direction of the handle housing 1. During the movement of the first rack 10, the first rack 10 pushes the gear 9 to rotate forward and backward. The forward and backward rotation of the gear 9 drives the second gear 9 to reciprocate along the axial direction of the handle housing 1 towards the probe 2, so as to realize the extension and retraction of the lamp group unit along the axial direction on the surface of the probe 2. Therefore, the medical staff can selectively control the switch on one or more moving blocks 7 to turn on the LED lamp, and observe the inside of the patient's oral cavity through the LED lamp.

[0069] See Figure 2 As shown, in this embodiment, the spraying unit that is arranged in the annular structure formed by several lamp group units arranged along the circumferential direction of the housing and can selectively spray different amounts of liquid medicine includes:

[0070] Several spraying tubes, which are arranged in the annular structure and can transport liquid medicine outward;

[0071] A medicine storage box 8, which is arranged inside the handle housing 1 and stores liquid medicine, and can reciprocate along the axial direction of the housing;

[0072] The connection and opening / closing structure is arranged between several medicine spraying tubes and the medicine storage box 8, so that the medicine storage box 8 is connected to the several medicine spraying tubes during the movement, and the liquid medicine in the medicine storage box 8 is driven to be conveyed into at least one medicine spraying tube.

[0073] In this embodiment, the medicine spraying unit can convey the liquid medicine into the patient's oral cavity and clean and treat the patient's oral diseases through the medicine spraying tubes arranged in the annular structure formed by several lamp group units along the axial direction of the handle housing 1; the medicine storage box 8 is moved along the axial direction of the handle housing 1 so that the connection and opening / closing structure is connected to the medicine spraying tube. Under the action of the connection and opening / closing structure, the liquid medicine stored in the medicine storage box 8 is conveyed into at least one medicine spraying tube, so that the medicine spraying tube can convey the liquid medicine outwards, thereby achieving the medicine application operation during the search process.

[0074] The connection and opening / closing structure in this embodiment belongs to the control unit. Specifically, in this embodiment, the medicine spraying tubes include a first medicine spraying tube 4 and several second medicine spraying tubes 5. The several second medicine spraying tubes 5 are evenly arranged circumferentially along the circumferential structure of the handle housing 1. The first medicine spraying tube 4 is located in the middle of the circumferential structure of the several second medicine spraying tubes 5. The diameter of the first medicine spraying tube 4 is twice that of the second medicine spraying tube 5. Therefore, the speed of conveying the liquid medicine by the first medicine spraying tube 4 is lower than that of the second medicine spraying tube 5, but the amount of liquid medicine conveyed by the first medicine spraying tube 4 is twice that of the second medicine spraying tube 5. Therefore, the control of the liquid medicine conveying speed and the conveying amount is realized by the different diameters of the first medicine spraying tube 4 and the second medicine spraying tube 5.

[0075] See Figure 3 As shown, in this embodiment, the connection and opening / closing structure includes several elastic first sealing plates 26, second sealing plates 25, first insertion tubes and second insertion tubes 20. The positions of the first sealing plates 26 correspond to the positions of the first insertion tubes one by one, and the positions of the second sealing plates 25 correspond to the positions of the second insertion tubes 20 one by one. The first sealing plates 26 are arranged in the pipe orifices of the first medicine spraying tubes 4 facing the medicine storage box 8, and the second sealing plates 25 are arranged in the pipe orifices of the second medicine spraying tubes 5 facing the medicine storage box 8. The first insertion tubes and the second insertion tubes 20 are both arranged on the side surface of the medicine storage box 8 facing the medicine spraying tubes. Among them, the end of the first insertion tube facing the first medicine spraying tube 4 is provided with a first plug, and the end of the second insertion tube 20 facing the second medicine spraying tube 5 is provided with a second plug 21. In this embodiment, the first plug and the second plug 21 are for the purpose of facilitating better insertion into the corresponding first medicine spraying tube 4 and second medicine spraying tube 5 after passing through the first sealing plate 26 and the second sealing plate 25 respectively.

[0076] A drainage member is provided between the first cannula, the second cannula 20 and the medicine storage box 8. During the movement of the medicine storage box 8, the first cannula and the second cannula 20 are respectively driven to pass through the first sealing plate 26 and the second sealing plate 25 and extend into the corresponding first medicine spraying tube 4 and second medicine spraying tube 5. The liquid medicine in the medicine storage box 8 is introduced into different and corresponding first medicine spraying tube 4 and second medicine spraying tube 5 through the drainage member, so that different first medicine spraying tube 4 and second medicine spraying tube 5 transport the liquid medicine outward.

[0077] In this embodiment, the connection and opening / closing structure adopts the first sealing plate 26 installed in the nozzle of the first medicine spraying tube 4 facing the medicine storage box 8, which can block the nozzle of the first medicine spraying tube 4, and the second sealing plate 25 installed in the nozzle of the second medicine spraying tube 5 facing the medicine storage box 8, which can block the nozzle of the second medicine spraying tube 5, so as to prevent the liquid medicine transported in the first medicine spraying tube 4 and the second medicine spraying tube 5 from flowing back into the handle housing 1.

[0078] At the same time, the position of the first cannula on the side of the medicine storage box 8 corresponds to that of the first sealing plate 26 one by one, and the position of the second cannula 20 corresponds to that of the second sealing plate 25 one by one, that is, the positions of the first cannula and the second cannula 20 correspond to those of the first medicine spraying tube 4 and the second medicine spraying tube 5 one by one. During the movement of the medicine storage box 8 along the axial direction of the handle housing 1, the medicine storage box 8 drives all the cannulas to move along the axial direction of the handle housing 1. The first cannula and the second cannula 20 gradually approach the first medicine spraying tube 4 and the second medicine spraying tube 5 and respectively overcome the elastic potential energy of the first sealing plate 26 and the second sealing plate 25 to pass through the sealing plates and extend into the matching first medicine spraying tube 4 and second medicine spraying tube 5, so as to realize the connection between the medicine storage box 8 and several first medicine spraying tubes 4 and second medicine spraying tubes 5.

[0079] After the medicine storage box 8 is connected to several first medicine spraying tubes 4 and second medicine spraying tubes 5, according to the needs of medical staff, the liquid medicine in the medicine storage box 8 is controlled by the drainage member to be introduced into different first medicine spraying tubes 4 and second medicine spraying tubes 5 through the cannulas, so that the liquid medicine is transported outward through different first medicine spraying tubes 4 and second medicine spraying tubes 5 to clean or disinfect the positions of the patient's oral diseases with the liquid medicine.

[0080] See Figure 2As shown in the figure, in this embodiment, the drainage member includes a collecting pipe communicating with the first cannula and the second cannula 20. A moving frame is provided between the collecting pipe and the medicine storage box 8. An infusion tube 18 is arranged inside the moving frame. The two ends of the infusion tube 18 are respectively communicated with the collecting pipe and the medicine storage box 8. A micro pump 19 installed on the infusion tube 18 is arranged inside the moving frame. The micro pump 19 is a peristaltic pump with the brand of JIHPUMP / Jeheng and the model of 104KA; An opening and closing button 31 electrically connected to the micro pump 19 is installed at the end of the medicine storage box 8 far from the infusion tube 18. The opening and closing button 31 is used to control the micro pump 19 to start and transport the liquid medicine into the cannula. A medicine adding port 32 for adding liquid medicine into the medicine storage box 8 is also provided on the same side as the opening and closing button 31. A cover for the medicine adding port 32 is arranged inside the medicine adding port 32 to prevent the liquid medicine in the medicine storage box 8 from overflowing.

[0081] The opening and closing button 31 in this embodiment is part of the control unit. During the process of the medical staff pushing the medicine storage box 8, the medicine storage box 8 drives the collecting pipe, the first cannula, and the second cannula 20 to move synchronously along the axial direction through the moving frame. In this way, it can ensure that the first cannula and the second cannula 20 move in a fixed state and are inserted into the corresponding first spraying pipe 4 and second spraying pipe 5. At the same time, the moving frame is used to maintain the stable state of the movement of the infusion tube 18 and the installation position of the micro pump 19;

[0082] When the medical staff cannot push the medicine storage box 8 anymore, it can be judged that the first cannula and the second cannula 20 have been inserted into the first spraying pipe 4 and the second spraying pipe 5; Since the medical staff usually hold the handle housing 1 in a horizontal state during the oral exploration process, the medicine storage box 8 will also be in a horizontal state, causing some liquid medicine in the medicine storage box 8 to enter the infusion tube 18. At this time, the micro pump 19 is started through the opening and closing button 31. The micro pump 19 pumps this part of the liquid medicine into the corresponding first cannula and second cannula 20, and continuously transports the liquid medicine into the spraying pipe through the first cannula and the second cannula 20;

[0083] The medical staff controls whether the liquid medicine is transported by grasping the state of the handle housing 1. When the handle housing 1 is in a state of tilting from top to bottom, the liquid medicine in the medicine storage box 8 gathers at the inner bottom, so that there is no liquid medicine in the infusion tube 18. At this time, the first spraying pipe 4 and the second spraying pipe 5 will stop transporting the liquid medicine outward. When the handle housing 1 is in a state of tilting from bottom to top, the liquid medicine in the medicine storage box 8 gathers in the infusion tube 18, and the micro pump 19 continuously transports the liquid medicine into the spraying pipe. Such a design facilitates the medical staff to control the transportation of the liquid medicine by swinging the state of the handle housing 1.

[0084] It also includes a support plate 24 and a fixed sleeve 23 arranged in the shell, the support plate 24 has several through holes for inserting the first spray pipe 4 and the second spray pipe 5, and there are several springs 22 between the support plate 24 and the collecting pipe, one end of each spring 22 is located between the adjacent first spray pipe 4 and the second spray pipe 5 and fixed on the support plate 24, and the other end is located between the adjacent inserts and fixed on the collecting pipe; the fixed sleeve 23 is sleeved on the outer surface of the medicine storage box 8, and a clamping piece is provided between the medicine storage box 8 and the fixed sleeve 23. When the clamping piece moves to a suitable position of the fixed sleeve 23 along the axial direction of the medicine storage box 8, the medicine storage box 8 is clamped and connected with the fixed sleeve 23; when the medicine storage box 8 is reset, the elastic potential energy of the spring 22 drives the clamping piece to disengage to separate the medicine storage box 8 from the fixed sleeve 23.

[0085] In this embodiment, when the medicine storage box 8 is pushed, the medicine storage box 8 moves along the axial direction of the fixed sleeve 23 and moves to a suitable position. At this time, the clamping piece between the medicine storage box 8 and the fixed sleeve 23 clamps and connects the two, so that the medicine storage box 8 stays at this position and maintains a stable state, which facilitates the subsequent delivery of liquid medicine to the first spraying tube 4 and the second spraying tube 5 through the micro pump 19 to clean or reduce inflammation of the diseased position inside the patient's oral cavity;

[0086] After the medical staff completes the spraying treatment of the diseased area inside the oral cavity, the medical staff continues to push the medicine storage box 8 along the axial direction of the fixed sleeve 23, so that the medicine storage box 8 and the fixed sleeve 23 are initially separated. Then, the medical staff releases the force pushing the medicine storage box 8. Under the action of the elastic potential energy of several springs 22, the medicine storage box 8 quickly pushes the medicine storage box 8 to move in the opposite direction and drives the locking member to disengage, so that the medicine storage box 8 and the fixed sleeve 23 are completely separated and reset.

[0087] See also Figure 5 As shown, in this embodiment, the locking member includes a limiting groove 28 provided on the inner wall of the fixing sleeve 23 and a storage groove 30 provided on the outer surface of the medicine storage box 8. The bottom of the limiting groove 28 is an inclined surface, and the overall longitudinal section is a right-angled triangle. An elastic strip 29 with elasticity is rotatably connected to the groove wall of the storage groove 30. When the medicine storage box 8 moves along the axial direction of the fixing sleeve 23 and the storage groove 30 is connected to the limiting groove 28, the elastic strip 29 is ejected from the storage groove 30 to the limiting groove 28, and the upper surface of the elastic strip 29 cooperates with the inclined surface in the limiting groove 28, and the end of the elastic strip 29 is against the groove wall of the limiting groove 28, so that the elastic strip 29 is stuck in the limiting groove 28 and stops the movement of the medicine storage box 8.

[0088] During the axial movement of the medicine storage box 8 in this embodiment, the elastic strip 29 in the storage groove 30 is pressed by the inner wall of the fixed sleeve 23 and held in the storage groove 30. When the storage groove 30 communicates with the limiting groove 28, the elastic strip 29 in the storage groove 30 is not subjected to the extrusion force of the inner wall of the fixed sleeve 23. Under the action of its own elastic potential energy, the elastic strip 29 ejects into the limiting groove 28. The upper surface of the elastic strip 29 is in inclined surface fit based on the inclined surface in the limiting groove 28. At the same time, the end of the elastic strip 29 abuts against the groove wall of the limiting groove 28. By making the abutting force at the end of the elastic strip 29 equal to the static reaction force of all the springs 22, the medicine storage box 8 is kept stationary at this position after moving, so that the first cannula and the second cannula 20 can be inserted into the corresponding first medicine spraying tube 4 and the second medicine spraying tube 5 and stably convey the liquid medicine into the first medicine spraying tube 4 and the second medicine spraying tube 5;

[0089] When the medicine storage box 8 needs to be reset, the medical staff pushes the medicine storage box 8 to move axially again and applies an extrusion force to all the springs 22. At this time, the elastic strip 29 is in inclined surface fit with the bottom of the limiting groove 28, forcing the elastic strip 29 to reset and be pressed in the storage groove 30, so that the medicine storage box 8 is preliminarily separated from the fixed sleeve 23. Then, the medical staff releases the force for pushing the medicine storage box 8. The medicine storage box 8 is quickly ejected in the opposite direction under the action of the elastic potential energy of several springs 22, so that the elastic strip 29 quickly passes through the limiting groove 28, and the medicine storage box 8 is completely separated from the fixed sleeve 23 and reset.

[0090] See Figure 4 As shown, in this embodiment, a first one-way valve 15 is provided in the first medicine spraying tube 4 near the first sealing disc 26, and a second one-way valve 14 is provided in the second medicine spraying tube 5 near the second sealing disc 25. Both the first sealing disc 26 and the second sealing disc 25 include several rubber sheets. There is an overlapping layer between adjacent rubber sheets and they surround to form a petal shape. One ends of all the rubber sheets are connected inside the nozzle of the first medicine spraying tube 4 or the second medicine spraying tube 5, and the other ends surround each other to form a socket 27 for the corresponding first cannula or the second cannula 20 to pass through. The position of the first socket 27 corresponds to the position of the first one-way valve 15, and the position of the second socket 27 corresponds to the position of the second one-way valve 14.

[0091] When this embodiment is in use, the first cannula and the second cannula 20 are respectively inserted into the corresponding first medicine spraying tube 4 and the second medicine spraying tube 5 through the sockets 27 in the first sealing disc 26 and the second sealing disc 25. The first cannula and the second cannula 20 respectively convey the liquid medicine to the first one-way valve 15 and the second one-way valve 14 in the first medicine spraying tube 4 and the second medicine spraying tube 5. The liquid medicine respectively flows out along the axial direction of the first medicine spraying tube 4 and the second medicine spraying tube 5 through the first one-way valve 15 and the second one-way valve 14, and the liquid medicine is conveyed out through the first medicine spraying tube 4 and the second medicine spraying tube 5.

[0092] In this embodiment, the first sealing plate 26 and the second sealing plate 25 are overlapped and surrounded by rubber sheets with elasticity to form a petal shape. On the one hand, it prevents the backflow of the liquid medicine. On the other hand, it is also convenient for the first cannula and the second cannula 20. After overcoming the elastic potential energy of the rubber sheet, the rubber sheet plays a role in clamping the circumferential sides of the first cannula and the second cannula 20, avoiding the first cannula and the second cannula 20 being pulled out by the elastic potential energy of the spring 22 after being inserted.

[0093] Meanwhile, in this embodiment, the first sealing plate 26 and the second sealing plate 25 are combined with the first one-way valve 15 and the second one-way valve 14 to control the backflow of the liquid medicine bidirectionally. When part of the liquid medicine flows outwards along the corresponding first spraying pipe 4 and the second spraying pipe 5 through the first one-way valve 15 and the second one-way valve 14 respectively, the first one-way valve 15 and the second one-way valve 14 can prevent the backflow of this part of the liquid medicine, reducing the pressure on the liquid medicine prevented from flowing back by the first sealing plate 26 and the second sealing plate 25 at the back end, so as to ensure that the first sealing plate 26 and the second sealing plate 25 can prevent a small part of the liquid medicine from flowing back. The overall design is ingenious.

[0094] This embodiment adopts a one-to-one structural design. The lamp group units arranged circumferentially on the shell are operated and moved one or more according to the usage requirements of medical staff, realizing one-to-one adaptation to the usage habits of different medical staff, and having a wider application range. At the same time, within the annular structure where several lamp group units are arranged in the circumferential direction, there is a spraying unit for spraying and cleaning or anti-inflammatory treatment of the patient's oral cavity. When medical staff need to spray and clean or perform anti-inflammatory treatment on the diseased position in the patient's oral cavity, they only need to move the medicine storage box 8 in the spraying unit. The medicine storage box 8 can not only store the liquid medicine but also serve as a control end for starting spraying. During the movement of the medicine storage box 8, a connection opening and closing structure is designed to ensure the control of liquid medicine delivery and disconnection of liquid medicine delivery. It can not only be opened and closed by button, but also the liquid medicine can be delivered outwards by swinging the inclination direction of the searchlight in this embodiment by medical staff. Therefore, this embodiment can realize directional spraying of liquid medicine according to the position of oral diseases during oral examination.

[0095] The above are only embodiments of the present invention. Specific technical solutions and / or common knowledge such as characteristics well known in the art are not described in detail here. It should be pointed out that for those skilled in the art, without departing from the technical solution of the present invention, several deformations and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the implementation effect of the present invention and the practicability of the patent. The protection scope required by this application should be based on the content of its claims, and the specific implementation manners described in the specification can be used to explain the content of the claims.

Claims

1. An intraoral searchlight for oral observation, characterized in that: The invention comprises a shell having a hollow structure, and: A plurality of lamp assembly units are evenly arranged around the circumference of the housing and can selectively reciprocate along the axial direction of the housing; The spraying unit is arranged in a ring structure formed by a plurality of lamp group units arranged along the circumferential direction of the shell, and can selectively spray different amounts of liquid medicine outward; The control unit is configured to control at least one lamp unit to move along the axial direction of the shell to the outside of the shell and illuminate the internal environment of the oral cavity. While the lamp unit is illuminating, the spray unit is controlled to selectively spray a quantitative liquid medicine toward the illumination position.

2. The intra-oral searchlight for oral observation according to claim 1, characterized in that: The shell includes a handle shell and a probe rod, the end of the handle shell is fixedly connected to the end of the probe rod to form an integrated structure, the control unit includes a plurality of movable control parts arranged on the handle shell and evenly distributed along its circumferential direction, the movable control parts correspond one-to-one to the light group unit, and the light group unit can move outward along the axial direction of the probe rod and illuminate the internal environment of the oral cavity.

3. The intra-oral searchlight for oral observation according to claim 2, characterized in that: The probe rod is evenly distributed with several axially extending sliding holes along its circumference, and the sliding holes correspond to the lamp group units one by one. Each lamp group unit includes a transparent lampshade, and an LED lamp is installed in the lampshade. The lampshade is provided with a connecting block passing through the sliding hole on the side facing the probe rod, and the end of the connecting block is connected to the movable control component. The movable control component drives the connecting block to drive the lampshade attached to the surface of the probe rod to move back and forth along the axial direction of the sliding hole.

4. The intra-oral searchlight for oral observation according to claim 2, characterized in that: The movable control component includes a plurality of axially extending inner sliding holes opened on the handle shell, and the plurality of inner sliding holes are evenly distributed along the circumferential direction of the handle shell, a button block is fixed to the outer surface of each inner sliding hole, an outer sliding block corresponding to the inner sliding hole is opened on the button block, a movable block is slidably connected inside the outer sliding block, a connecting block extending into the handle shell is provided on the side of the movable block facing the handle shell, a first rack arranged along the axial direction of the handle shell is connected to the end of the connecting block, the first rack is meshed with a gear arranged in the handle shell, the gear is meshed with a second rack arranged in the handle shell and extending toward the probe rod, and the second rack is connected to the lamp assembly unit.

5. The intra-oral searchlight for oral observation according to claim 4, characterized in that: The spraying unit is arranged in a ring structure formed by a plurality of lamp group units arranged along the circumferential direction of the shell and can selectively spray different amounts of liquid medicine outward, including: A plurality of spray pipes are arranged in the annular structure and are capable of conveying liquid medicine to the outside; The medicine storage box is arranged in the shell and stores liquid medicine, and can reciprocate along the axial direction of the shell; The connecting opening and closing structure is arranged between several spraying pipes and the medicine storage box, so that the medicine storage box is connected with several spraying pipes during movement, driving the medicine liquid in the medicine storage box to transport the medicine liquid into at least one spraying pipe.

6. The intra-oral searchlight for oral observation according to claim 5, characterized in that: The connecting opening and closing structure includes a plurality of elastic sealing disks and inserting tubes, the positions of the sealing disks correspond to the positions of the inserting tubes one by one, the sealing disks are arranged in the pipe opening of the medicine spraying tube facing the medicine storage box, the inserting tubes are arranged on the side of the medicine storage box facing the medicine spraying tube, a drainage piece is arranged between the inserting tube and the medicine storage box, the medicine storage box drives the inserting tube to pass through the sealing disk and extend into the medicine spraying tube during the movement, and the medicine liquid in the medicine storage box is introduced into different medicine spraying tubes through the inserting tubes through the drainage piece, so that different medicine spraying tubes transport the medicine liquid outward.

7. The intra-oral searchlight for oral observation according to claim 6, characterized in that: The drainage component includes a collecting pipe connected to several cannulas, a movable frame is provided between the collecting pipe and the medicine storage box, an infusion tube is provided in the movable frame, both ends of the infusion tube are respectively connected to the collecting pipe and the medicine storage box, a micro pump installed on the infusion tube is provided in the movable frame, and an on-off button electrically connected to the micro pump is installed at the end of the medicine storage box away from the infusion tube, and the on-off button is used to control the start of the micro pump and deliver the medicine solution into the cannula.

8. The intra-oral searchlight for oral observation according to claim 7, characterized in that: It also includes a support plate and a fixed sleeve arranged in the shell, the support plate has several through holes for the spray tubes to be inserted, and several springs are arranged between the support plate and the collecting tube, one end of each spring is located between adjacent spray tubes and fixed on the support plate, and the other end is located between adjacent insert tubes and fixed on the collecting tube; the fixed sleeve is arranged on the outer surface of the medicine storage box, and a retaining piece is arranged between the medicine storage box and the fixed sleeve, and when the retaining piece moves to a suitable position of the fixed sleeve along the axial direction of the medicine storage box, the medicine storage box and the fixed sleeve are connected by the retaining piece; when the medicine storage box is reset, the retaining piece is driven to disengage by the elastic potential energy of the spring to separate the medicine storage box from the fixed sleeve.

9. The intra-oral searchlight for oral observation according to claim 8, characterized in that: The locking member includes a limiting groove formed on the inner wall of the fixing sleeve and a storage groove formed on the outer surface of the medicine storage box. The bottom of the limiting groove is an inclined surface, and the overall longitudinal section is a right-angled triangle. An elastic strip is rotatably connected to the groove wall of the storage groove. When the medicine storage box moves along the axial direction of the fixing sleeve and the storage groove is connected to the limiting groove, the elastic strip is ejected from the storage groove to the limiting groove, and the upper surface of the elastic strip cooperates with the inclined surface in the limiting groove, and the end of the elastic strip abuts against the groove wall of the limiting groove, so that the elastic strip is stuck in the limiting groove to stop the movement of the medicine storage box.

10. The intra-oral searchlight for oral observation according to claim 6, characterized in that: Each spray pipe is provided with a one-way valve near the sealing disk. The sealing disk includes several rubber sheets. Adjacent rubber sheets have overlapping layers and surround each other to form a petal shape. One end of all rubber sheets is connected to the nozzle of the spray pipe, and the other ends surround each other to form a socket for the insertion tube to pass through. The position of the socket corresponds to the position of the one-way valve.

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