Visual laryngoscope capable of spraying medication

Abstract

This invention provides a visual laryngoscope capable of spraying medication, belonging to the field of medical device technology. A lens is located at the lower end of the handle; the lens protective sleeve includes a housing covering the lens and a tongue depressor located at the front end of the housing; a medication reservoir is located inside the handle, connected to an exposed interface at the lower end of the handle via a first conduit built into the handle; a nozzle is located at the front end of the tongue depressor, detachably connected to the interface via a second conduit, allowing medication from the reservoir to enter the second conduit via the first conduit and finally be sprayed out through the nozzle; a pressing structure, located on the display system or the handle, controls the spraying of anesthetic. This invention maintains the portability and operability of traditional laryngoscopes while adding a local anesthesia function, allowing medical personnel to perform surface anesthesia while conducting laryngeal examinations, significantly improving diagnostic and treatment efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, and specifically relates to a visual laryngoscope capable of spraying drugs. Background Technology

[0002] A visual laryngoscope is an advanced medical device primarily used for airway management, especially during endotracheal intubation and laryngeal examinations. Its core function is to capture real-time images of the larynx via a built-in camera and display them on a connected screen. This real-time image transmission allows doctors to observe the patient's laryngeal structures more clearly. When dealing with complex or difficult airways, doctors can improve intubation success rates, reduce patient trauma and discomfort, and better assess airway conditions.

[0003] A visualization laryngoscope typically consists of a flexible or rigid laryngoscope body with a light source and a high-definition camera at the tip, providing a bright and clear view. The lens is usually designed with a slight curvature to facilitate easier access to the larynx and to capture images of key areas. The handle of the device is typically ergonomically designed with buttons or levers for easy adjustment of the lens angle and light source intensity by the physician.

[0004] Despite the many advantages of visual laryngoscopes in airway management, there is a key limitation to existing technology: the inability to directly spray local anesthetic drugs during intubation.

[0005] This problem may cause patients to cough, laryngospasm, or gag reflex due to strong stimulation of the throat during the procedure, especially for patients who are awake or mildly sedated. These reactions not only increase the difficulty of intubation, but may also cause airway damage or even the risk of aspiration.

[0006] Furthermore, if the patient struggles violently due to pain or discomfort, the operator may be forced to interrupt the intubation or have to deepen the sedation, further increasing the possibility of complications such as respiratory depression.

[0007] In patients with difficult airways or high sensitivity, the lack of topical anesthesia may prolong the procedure time, exacerbate stress response, and affect hemodynamic stability. Therefore, integrating nebulizers or spray devices to achieve simultaneous delivery of laryngoscopy and anesthetic drugs in the future will significantly improve patient tolerance and reduce procedure-related trauma, especially in scenarios such as awake fiberoptic bronchoscopic intubation or rapid sequential induction in emergency situations, which has important clinical significance.

[0008] In conclusion, how to provide a visual laryngoscope capable of spraying medication is a technical problem that urgently needs to be solved. Utility Model Content

[0009] The purpose of this invention is to overcome the shortcomings of the prior art and provide a visual laryngoscope that can spray drugs. By embedding the drug reservoir in the handle and delivering the drug solution through a tube to the nozzle at the front end of the tongue depressor, the drug spraying function and visual examination are organically combined.

[0010] This utility model provides a visual laryngoscope capable of spraying medicine, including a display system; a handle rotatably connected to the display system, and a lens is provided at the lower end of the handle; A lens protective cover, the lens protective cover including a housing that covers the lens and a depressor plate disposed at the front end of the housing; Its features are: The lens handle is provided with a medicine compartment, which is connected to an exposed interface located at the bottom of the lens handle via a first tube built into the lens handle. The front end of the tongue depressor is provided with a nozzle, which is detachably connected to the interface through a second pipeline. The liquid medicine in the medicine chamber enters the second pipeline through the first pipeline and is finally sprayed out through the nozzle. A press mechanism, located on the display system or the lens handle, is used to control the dispensing of anesthetic.

[0011] Furthermore, the second conduit passes through the inside of the housing and extends to the outside of the housing.

[0012] Furthermore, the second pipeline is disposed on the outer wall of the housing.

[0013] Furthermore, the second conduit can be inserted into the interface, and the outer wall of the front end of the second conduit is covered with a sealing elastic ring.

[0014] Furthermore, the second pipe can be fitted onto the interface to connect to it; a sealing elastic ring is provided on the inner wall of the front end of the second pipe.

[0015] Furthermore, the handle of the mirror is provided with an injection port, which is connected to the medicine chamber, allowing external medicine to enter the medicine chamber through the injection port; The injection port is provided with a cover.

[0016] Furthermore, the tongue depressor and the housing are slidably connected.

[0017] Furthermore, the tongue depressor has a first telescopic part that can extend and retract in the longitudinal direction and / or a second telescopic part that can extend and retract in the transverse direction.

[0018] Furthermore, the lens protective case specifications include small lens protective case, medium lens protective case and large lens protective case; The main body of the small lens protective case has an equivalent length of 73±2 mm and a main body width of 16±2 mm. The equivalent length of the main body of the medium-sized lens protective case is 114±2 mm, and the width of the main body is 16±2 mm. The main body of the large lens protective case has an equivalent length of 140±2 mm and a main body width of 16±2 mm.

[0019] Furthermore, the display system is connected to the mirror handle via a rotating connector; The rotating connector includes a base fixedly mounted on the mirror handle; A rotating shaft is hinged to the base; The display system has a groove at its lower end near the base; The base and the groove are matched so that the display system can be embedded in the groove when it rotates relative to the base.

[0020] By adopting the above technical solution, this utility model, as an example, has the following advantages and positive effects compared with the prior art: This invention integrates a medication reservoir within the laryngoscope handle, delivering the medication via tubing to a nozzle at the front of the tongue depressor. This integrated design maintains the portability and operability of traditional laryngoscopes while adding local anesthesia functionality. The rational layout of the pressing mechanism allows for seamless coordination between medication application and the examination process, enabling single-handed operation. Medical personnel can perform surface anesthesia simultaneously with laryngeal examinations, significantly improving diagnostic and treatment efficiency.

[0021] The tongue depressor is flexibly adjustable via a telescopic and / or sliding connection to the housing, allowing the device to adapt to different anatomical features from children to adults. This adjustability greatly enhances the device's applicability and operational comfort, reducing patient discomfort.

[0022] The groove of the display system fits into the base, allowing the display system to be adjusted over a wider range of angles, providing medical staff with the best viewing angle.

[0023] This utility model has a compact overall structure, is easy to operate, has application value in clinical scenarios, and can effectively improve the efficiency of diagnosis and treatment and the patient experience. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the visual laryngoscope capable of spraying medication provided by this utility model.

[0025] Figure 2 This is a schematic diagram of the structure of the visual laryngoscope capable of spraying drugs provided by this utility model, which is another embodiment.

[0026] Figure 3 A schematic diagram of the nozzle structure provided by this utility model.

[0027] Figure 4A schematic diagram of the rotation of the display system provided by this utility model.

[0028] Figure 5 A schematic diagram of the structure of the tongue depressor provided by this utility model.

[0029] Figure 6 A planar projection view of the lens protective cover provided by this utility model.

[0030] Explanation of reference numerals in the attached figures Visual laryngoscope 100; Display system 200, recess 210; Mirror handle 300, rotating shaft 310, base 320, medicine chamber 330, first pipeline 340, interface 350, injection port 360, gate 370, pressing structure 380; Lens 400; Lens protective cover 500, housing 510, second pipeline 520; Tongue depressor 600; nozzle 610; spray hole 620; first telescopic part 630; second telescopic part 640. Detailed Implementation

[0031] The technical solutions disclosed in this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that the technical features or combinations of technical features described in the following embodiments should not be considered isolated; they can be combined with each other to achieve better technical effects. In the accompanying drawings of the following embodiments, the same reference numerals appearing in each drawing represent the same features or components, which can be applied to different embodiments. Therefore, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0032] It should be noted that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the implementation conditions of the utility model. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of the utility model, should fall within the scope of the technical content disclosed in the utility model. The scope of the preferred embodiments of this utility model includes other implementations, wherein functions may be performed not in the order stated or discussed, including substantially simultaneously or in reverse order, according to the functions involved. This should be understood by those skilled in the art to which the embodiments of this utility model pertain.

[0033] Techniques, methods, and apparatus known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and apparatus should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0034] This invention provides a visual laryngoscope 100 capable of spraying medication.

[0035] like Figure 1 As shown, the device includes a display system 200 and a handle rotatably connected to the display system 200. A lens 400 is provided at the lower end of the handle, and a camera is provided at the front end of the lens 400 for capturing images of the patient's throat.

[0036] Furthermore, the display system 200 is connected to the lens handle via a rotating connector.

[0037] The rotating connector includes a base 320 fixedly mounted on the mirror handle. A rotating shaft 310 is hinged to the base 320, and the display system 200 is rotatably connected to the base 320 via the rotating shaft 310.

[0038] like Figure 4 As shown, the display system 200 has a groove 210 on the lower end near the base 320, and the base 320 and the groove 210 are matched.

[0039] When the display system 200 rotates relative to the base 320, as the tilt angle between the display system 200 and the base 320 changes, the lower end of the display system 200 gradually turns from facing the lens handle towards the base 320. Without the groove 210, when the lower end of the display system 200 contacts the base 320, a rigid limit is formed, forcing the rotation to stop and limiting the maximum tilt angle. With the groove 210 on the lower end, when the lower end contacts the base 320, the sidewall of the base 320 begins to contact the inlet edge of the groove 210. At this time, the guide slope of the groove 210 guides the base 320 to gradually slide into the groove 210, thus allowing the display system 200 to continue rotating. During this process, the contact area between the base 320 and the groove 210 gradually expands with the increase of the rotation angle, and the resulting sliding friction gradually increases, ensuring both smooth and controllable rotation and providing clear tactile feedback.

[0040] The display system 200 can rotate continuously until the base 320 is fully or partially engaged in the groove 210. The sidewall of the groove 210 makes multi-directional contact with the base 320, achieving stable self-locking through the dual effects of surface contact friction and mechanical limiting. This configuration significantly expands the adjustable range of the tilt angle.

[0041] Lens protective cover 500, the lens protective cover 500 includes a housing 510 that covers the lens 400, and a tongue depressor 600 disposed at the front end of the housing 510.

[0042] Lens protective sleeves 500 are generally made of plastic and are for single use. Before insertion, the protective sleeve wraps around the lens 400. After the procedure, the sleeve can be easily separated from the lens 400, effectively preventing cross-infection.

[0043] The lens protective cases are available in small, medium, and large sizes, making them suitable for different patient groups, including adult men, adult women, and children.

[0044] The equivalent length of the small lens protective case is 73±2 mm, and the width of the main body is 16±2 mm.

[0045] The equivalent length of the medium-sized lens protective case is 114±2 mm, and the width is 16±2 mm.

[0046] The main body of the large lens protective case has an equivalent length of 140±2 mm and a main body width of 16±2 mm.

[0047] Wherein, the equivalent length L of the lens protective cover is the actual length of the main body of the lens protective cover (that is, the horizontal projection length of the insertable part, including the tongue depressor and the shell, which is in a curved shape, when the lens protective cover is put on the lens).

[0048] The main body width is the width of the tongue depressor included in the lens protective case. The horizontal projection of the tongue depressor is roughly rectangular in shape, with a width of W. See [reference needed]. Figure 6 As shown.

[0049] Preferably, the handle of the scope is provided with a medicine reservoir 330, which has a storage space to hold liquid drugs, such as anesthetic solutions.

[0050] Optionally, the mirror handle is provided with an injection port 360, such as... Figure 2 As shown, the injection port 360 is connected to the medicine tank 330. The injection port 360 is provided with a cover that can be opened and closed (not shown in the figure). When the cover is open, the user can inject supplementary medicine into the medicine tank 330 through the injection port 360.

[0051] By way of example and not limitation, the cover is hinged to the top of the injection port 360.

[0052] With a gentle push, the cap flips open for easy injection of the medication. When closed, the cap fits snugly against the injection port 360°, ensuring a good seal and preventing leakage and contamination.

[0053] Alternatively, the lid could be designed as a spring-loaded mechanism, allowing the user to simply press a button or component to open it. Pressing the button again after the medicine has been injected would close the lid.

[0054] Alternatively, the cover can be designed as a push-pull type, allowing users to open and close the injection port 360° by sliding it.

[0055] The medicine compartment 330 is connected to the exposed interface 350 located below the mirror handle via a first conduit 340 built into the mirror handle.

[0056] A gate 370 is provided at the connection point of the interface 350 corresponding to the first pipeline 340. The gate 370 is closed by default to prevent accidental leakage of the pesticide solution. When spraying is required, the gate 370 is opened, and the pesticide solution in the pesticide tank 330 reaches the exposed interface 350 through the first pipeline 340.

[0057] The tongue depressor 600 has a nozzle 610 at its front end, and the nozzle 610 is detachably connected to the interface 350 through the second pipe 520.

[0058] The location of the second conduit 520 is usually one of the following two methods: Firstly, such as Figure 2 As shown, the second conduit 520 adopts an internal design, passing through the inner cavity of the housing 510, and extending out near the interface 350 to the outside of the housing 510, as shown in the figure.

[0059] Secondly, such as Figure 1 As shown, the second pipeline 520 adopts an external design and is arranged along the outer wall of the shell 510, as shown in the figure.

[0060] There are generally two ways to connect the second conduit 520 to the interface 350: The second conduit 520 is an insert-type connection, capable of being inserted into the interface 350 to establish a connection. Removing it disconnects the connection. A sealing elastic ring (not shown in the figure) is provided on the outer wall of the front end of the second conduit 520. After the second conduit 520 is inserted into the interface 350, the sealing elastic ring fills the annular gap between the outer wall of the second conduit 520 and the inner wall of the interface 350, achieving a sealing effect.

[0061] The second conduit 520 can be fitted onto the interface 350 to connect to the socket; a sealing elastic ring is provided on the inner wall of the front end of the second conduit 520. After the second conduit 520 is fitted onto the interface 350, the sealing elastic ring fills the annular gap between the inner wall of the second conduit 520 and the outer wall of the interface 350.

[0062] In the connected state, the liquid medicine in the medicine tank 330 can enter the second pipe 520 through the first pipe 340 and reach the nozzle 610.

[0063] The drive assembly (not shown in the figure), including a gas drive assembly or a micropump, provides sufficient pressure to eject the drug from the tubing.

[0064] The gas-driven assembly uses compressed air or an inert gas (such as nitrogen) as the driving force to mix the gas with the liquid medicine, forming mist particles, which are then ejected through the nozzle 610.

[0065] Miniature pumps facilitate control of drug flow and spray volume, and can maintain stable spray pressure to ensure consistent spraying results.

[0066] The drive component can be located inside the nozzle 610, or in the second pipeline 520, or in the first pipeline 340, or in the liquid tank.

[0067] Optionally, such as Figure 3 As shown, the nozzle 610 includes a plurality of spray holes 620. The diameter of the spray holes 620 should be preset according to the viscosity of the liquid and the spray effect, or different product specifications can be provided for different drug applications, so as to effectively atomize or spray the drug and ensure that the drug can uniformly cover the target area.

[0068] For example, the fine nozzle 620 is suitable for low-viscosity liquids and can produce fine mist particles.

[0069] Coarse nozzle 620: Suitable for high-viscosity liquids, effectively spraying out larger particles.

[0070] Of course, nozzles 620 with different orifice diameters can also be set on the same nozzle 610. Some orifices have larger diameters and some have smaller diameters to produce different spraying effects.

[0071] The pressing mechanism 380, located on the display system 200 or the lens handle, is used to control the dispensing of the anesthetic.

[0072] Taking the gate 370 located at the connection between the medicine tank 330 and the first pipeline 340 as an example, after the user presses the pressing structure 380, the pressing structure 380 sends a signal to the electrically connected control system. After receiving the signal, the control system controls the gate 370 to open, releasing a preset amount of medicine from the medicine tank 330, and then closes the gate 370 to cut off the medicine's outflow path. The released medicine then passes through the first pipeline 340 and the second pipeline 520, finally reaching the nozzle 610, where it is driven by the drive assembly and sprayed out from the nozzle 620.

[0073] Furthermore, the tongue depressor 600 is movable relative to the housing 510.

[0074] In a typical implementation, the width of the housing 510 is larger than the width of the tongue depressor 600. A slide rail is provided at the front end of the housing 510 corresponding to the tongue depressor 600. The tongue depressor 600 is slidably connected to the slide rail by a slider provided at the lower end, and can move back and forth on the slide rail, thereby changing its position relative to the housing 510.

[0075] In another implementation, such as Figure 5 As shown, the movement of the tongue depressor 600 is achieved by extension and retraction.

[0076] The tongue depressor 600 has a first telescopic part 630, which can extend and retract in the longitudinal direction, thereby realizing the change of the size of the tongue depressor 600 in the longitudinal direction.

[0077] The first telescopic part 630 includes several nested telescopic blocks, and telescopic movement is achieved by relative sliding between the telescopic blocks.

[0078] Alternatively, the tongue depressor 600 may have a second telescopic part 640, which is capable of telescopic extension and retraction in the lateral direction, thereby realizing the change of the size of the tongue depressor 600 in the lateral direction.

[0079] The structure of the second telescopic part 640 is similar to that of the first telescopic part 630, but the telescopic direction is consistent with the width direction of the tongue depressor 600, which can adapt to the oral cavity width of different patients.

[0080] Of course, the first and second telescopic parts 640 can also be used together, so that the tongue depressor 600 can extend and retract in two directions at the same time, enhancing the adaptability of application scenarios.

[0081] The movement and / or extension of the tongue depressor 600 are driven by a driving assembly, which may be integrated inside the tongue depressor 600 or located within the base of the corresponding connecting housing 510. Specifically, a built-in micro motor is used, connected to the slider of the tongue depressor 600 via a motor shaft. When the control system issues a command, the motor drives the tongue depressor 600 to move smoothly along the slide rail via a precision lead screw transmission mechanism.

[0082] Specifically, the motor is connected to a precision ball screw via a coupling, and the screw nut is fixed to the inner wall of the telescopic part. When the motor rotates, it drives the telescopic block to move linearly, which in turn pushes the subsequent stages to unfold in sequence.

[0083] After the operation is completed, connect and disconnect the second pipe 520 and the first pipe 340, and then dispose of the disposable lens protective cover 500.

[0084] Within the scope of this disclosure, terms such as “comprising” should be interpreted by default as inclusive or open-ended, rather than exclusive or closed, unless expressly defined as such. All technical, scientific, or other terms shall be interpreted as understood by one of those skilled in the art, unless defined as such. Public terms found in dictionaries should not be interpreted in an overly idealistic or impractical manner in the context of the relevant technical documentation, unless expressly defined as such in this disclosure.

[0085] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0086] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A visual laryngoscope capable of spraying medication, comprising a display system; a handle rotatably connected to the display system, wherein a lens is disposed at the lower end of the handle; A lens protective cover, the lens protective cover including a housing that covers the lens and a depressor plate disposed at the front end of the housing; Its features are: The lens handle is provided with a medicine compartment, which is connected to an exposed interface located at the bottom of the lens handle via a first tube built into the lens handle. The front end of the tongue depressor is provided with a nozzle, which is detachably connected to the interface through a second pipeline. The liquid medicine in the medicine chamber enters the second pipeline through the first pipeline and is finally sprayed out through the nozzle. A press mechanism, located on the display system or the lens handle, is used to control the dispensing of anesthetic.

2. The visual laryngoscope capable of spraying medication according to claim 1, characterized in that: The second conduit passes through the inside of the housing and extends to the outside of the housing.

3. The visual laryngoscope capable of spraying medication according to claim 1, characterized in that: The second pipeline is located on the outer wall of the housing.

4. The visual laryngoscope capable of spraying medication according to claim 1, characterized in that: The second conduit can be inserted into the interface, and the outer wall of the front end of the second conduit is covered with a sealing elastic ring.

5. The visual laryngoscope capable of spraying medication according to claim 1, characterized in that: The second pipe can be fitted onto the interface to connect to it; a sealing elastic ring is provided on the inner wall of the front end of the second pipe.

6. The visual laryngoscope capable of spraying medication according to claim 1, characterized in that: The mirror handle is provided with an injection port, which is connected to the medicine chamber, allowing external medicine to enter the medicine chamber through the injection port. The injection port is provided with a cover.

7. The visual laryngoscope capable of spraying medication according to claim 1, characterized in that: The tongue depressor and the housing are slidably connected.

8. The visual laryngoscope capable of spraying medication according to claim 1, characterized in that: The tongue depressor has a first telescopic part that can extend and retract in the longitudinal direction and / or a second telescopic part that can extend and retract in the transverse direction.

9. The visual laryngoscope capable of spraying medication according to claim 1, characterized in that: The lens protective cases are available in small, medium and large sizes. The main body of the small lens protective case has an equivalent length of 73±2 mm and a main body width of 16±2 mm. The equivalent length of the main body of the medium-sized lens protective case is 114±2 mm, and the width of the main body is 16±2 mm. The main body of the large lens protective case has an equivalent length of 140±2 mm and a main body width of 16±2 mm.

10. The visual laryngoscope capable of spraying medication according to claim 1, characterized in that: The display system is connected to the mirror handle via a rotating connector; The rotating connector includes a base fixedly mounted on the mirror handle; A rotating shaft is hinged to the base; The display system has a groove at its lower end near the base; The base and the groove are matched so that the display system can be embedded in the groove when it rotates relative to the base.

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