Visual laryngoscope

Abstract

The utility model discloses a visual laryngoscope. Among them, including: from front to rear mutually buckled auxiliary lens, host lens and support lens, support lens and host lens between assembly be used for connecting external device's hose, support lens one end is provided with opening, support lens one end forms and leads to the first passageway of opening, still include the connecting piece, the second passageway is formed to the connecting piece lower end surface, the connecting piece cover is located first passageway top, first passageway and second passageway combination form blowing and sucking passageway, the connecting piece one end still is provided with the socket for connecting hose, the hose, blowing and sucking passageway and opening are linked together, the second passageway of connecting piece its lower end surface formation and support lens's first passageway combination form blowing and sucking passageway, ensure that hose end surface does not protrude, thereby significantly reduced the scratch risk of patient throat tissue in intubation process.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a video laryngoscope. Background Technology

[0002] A video laryngoscope is a medical device used for endotracheal intubation. It has been widely used in clinical practice in recent years. Through visualization technology, it allows doctors to clearly observe the patient's pharyngeal structure during intubation, thereby improving the accuracy and safety of the procedure. A video laryngoscope includes, but is not limited to, core components such as a handle, lens, camera, and display. The handle is used for operation and gripping, the camera at the tip of the lens captures images, and the display shows real-time images of the pharynx and larynx.

[0003] Chinese patent discloses a multifunctional blowing and suction device for use with a video laryngoscope (publication number: CN118576139A). The patent discloses that the multifunctional blowing and suction device includes: a receiving groove adapted to the shape of the J-shaped main lens, the receiving groove fitting with the outer side of the J-shaped main lens; a control platform disposed on the upper part of the receiving groove; at least one plastic hose communicating with the control platform, the plastic hose fitting into the receiving groove, and the hose opening at the other end of the plastic hose extending to the lower part of the receiving groove to cooperate with a camera and a lighting source; an external interface disposed on the control platform and communicating with the inside of the control platform; a vacuum pressure indicator; and an alarm disposed on the control platform, the alarm being electrically connected to the vacuum pressure indicator.

[0004] The opening of the plastic tubing in the aforementioned patent extends to the lower part of the receiving groove, and the end face of the tubing opening protrudes from the suction opening. During the insertion process, the protruding end face of the tubing opening may cause physical damage to the patient's pharyngeal tissue, such as scratches or irritation, increasing the patient's pain and the risk of postoperative complications. Moreover, after long-term use, the elasticity of the tubing will gradually weaken, which may result in insufficient fit between the J-shaped main unit lens and the receiving groove, affecting the suction effect. Utility Model Content

[0005] In view of the problems existing in the prior art, the present invention provides a video laryngoscope that can effectively solve the problems existing in the prior art.

[0006] The technical solution of this utility model is:

[0007] According to one aspect of the present invention, the device includes: an auxiliary lens, a main lens, and a support lens that are sequentially interlocked from front to back. A flexible tube for connecting an external device is fitted between the support lens and the main lens. One end of the support lens has an opening, and a first channel leading to the opening is formed at one end of the support lens. The device also includes a connector, the lower end face of which has a second channel. The connector covers the first channel, and the first channel and the second channel combine to form a blow-suction channel. One end of the connector is also provided with a socket for connecting the flexible tube. The flexible tube, the blow-suction channel, and the opening are connected.

[0008] Furthermore, the connector is U-shaped, the second channel extends along the U-shaped outline of the connector and forms a corresponding U-shaped channel structure, the shape of the first channel corresponds to the second channel, and the opening is located at the U-shaped bend of the first channel; both ends of the connector are provided with sockets, and there are two hoses, which are respectively fixedly inserted into the two sockets.

[0009] Furthermore, a first positioning groove is formed on the inner side of the first channel, and a second positioning groove is formed on the outer side. The inner edge of the connector is engaged in the first positioning groove, and the outer edge of the connector is engaged in the second positioning groove.

[0010] Furthermore, the upper end face of the connector is fitted with the main lens, and the lower end face of the connector is fitted with the supporting lens.

[0011] Furthermore, it also includes a connecting pipe, with the ends of the two hoses away from the connector respectively fixedly inserted into the connecting pipe, the connecting pipe being connected to the two hoses, one end of the connecting pipe being provided with an air vent, the air vent being detachably fitted with a sealing plug; one end of the connecting pipe being provided with a connector for connecting external equipment.

[0012] Furthermore, the auxiliary lens has symmetrically formed locking blocks at its left and right ends, and the main lens has locking grooves at its left and right ends that cooperate with the two locking blocks; the two locking blocks are integrally formed with the auxiliary lens.

[0013] Furthermore, the main lens has a length of 17-19cm and a width of 2-3.5cm; the auxiliary lens and support lens are adapted to the size of the main lens.

[0014] Furthermore, the combined thickness of the auxiliary lens, main lens, and support lens is 1.2–2 cm.

[0015] By adopting the above technical solution, the beneficial effects of this utility model compared with the prior art are as follows:

[0016] Firstly, the second channel formed on the lower end face of the connector combines with the first channel of the support lens to form a suction / blowing channel, ensuring that the end face of the tubing does not protrude, thus significantly reducing the risk of scratching the patient's pharyngeal tissues during intubation. Secondly, the connector's inner and outer edges respectively engage with the first and second positioning grooves of the support lens, ensuring channel alignment and sealing, preventing issues caused by weakened tubing elasticity due to long-term use, and improving suction effectiveness. The socket design at both ends of the connector allows for secure tubing insertion, further enhancing connection stability and reliability. Simultaneously, the connector's fit with both the main lens and the support lens optimizes the overall structural compactness and functional versatility, significantly improving the safety and practicality of the video laryngoscope.

[0017] Secondly, in existing technologies, the locking block and auxiliary lens are fixed with adhesive. Since video laryngoscopes typically require high-temperature sterilization before use, the locking block may separate from the auxiliary lens after prolonged use. The one-piece molding process avoids the degradation or failure of adhesive during high-temperature sterilization, ensuring that the locking block and auxiliary lens remain firmly connected even after repeated sterilization, thus avoiding the risk of separation due to adhesive aging.

[0018] Third, the reduced size of the instrument makes the video laryngoscope more flexible to operate in narrow spaces, especially suitable for children or patients with complex anatomy. This design can effectively improve the accuracy of intubation and reduce the difficulty of operation.

[0019] 2. Due to the reduced size of the instrument, the pressure on the patient's oral cavity is significantly reduced, thereby alleviating discomfort during intubation. This is especially important for patients who require long-term intubation and can effectively improve the patient's experience.

[0020] 3. The reduced-size video laryngoscope can be used under induced anesthesia. After induction, the patient gradually transitions from a conscious state to an unconscious state, and the posterior displacement of the tongue is relatively mild. At this time, the smaller instrument size makes it easier to expose the glottis, reduces interference with the tongue, and thus improves the success rate of intubation.

[0021] 4. The reduced size of the video laryngoscope causes less stimulation to the patient during operation, reducing the risk of aspiration and acid reflux, while also reducing damage to the larynx and oral cavity. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the explosive structure of this utility model. Figure 1 ;

[0024] Figure 2 This is a schematic diagram of the explosive structure of this utility model. Figure 2 ;

[0025] Figure 3 This is a schematic diagram of the planar structure of the present invention;

[0026] Figure 4 This is a schematic diagram of the three-dimensional structure of the supporting lens in this utility model;

[0027] Figure 5 This is a three-dimensional structural diagram of the connector installed on the supporting lens in this utility model;

[0028] Figure 6 This is a three-dimensional structural diagram of the present invention with the supporting lens removed;

[0029] Figure 7 This is a schematic diagram of the three-dimensional structure of the connector in this utility model. Figure 1 ;

[0030] Figure 8 This is a schematic diagram of the three-dimensional structure of the connector in this utility model. Figure 2 ;

[0031] Figure 9 This is a cross-sectional structural diagram of the present invention;

[0032] Figure 10 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;

[0033] Figure 11 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;

[0034] In the diagram: Main lens-1, blow-suction channel-10, slot-11, auxiliary lens-2, locking block-21, supporting lens-3, opening-31, first channel-32, mounting slot-33, first positioning slot-34, second positioning slot-35, connector-4, socket-41, second channel-42, second positioning protrusion-43, first positioning protrusion-44, hose-5, connecting pipe-6, connector-61, air outlet-62. Detailed Implementation

[0035] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be particularly noted that the following embodiments are only for illustrating the present invention and do not limit the scope of the present invention. Similarly, the following embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0036] like Figures 1 to 11 As shown, this solution provides a video laryngoscope.

[0037] Please see Figure 1 , Figure 2 , Figure 10 and Figure 11 The system includes: an auxiliary lens 2, a main lens 1, and a support lens 3, which are sequentially interlocked from front to back. The auxiliary lens 2 has symmetrical locking blocks 21 at its left and right ends, and the main lens 1 has locking grooves 11 at its left and right ends that mate with the two locking blocks 21. The two locking blocks 21 are integrally formed with the auxiliary lens 2. In existing technology, the locking blocks 21 are fixed to the auxiliary lens 2 with adhesive. Since video laryngoscopes typically require high-temperature sterilization before use, the locking blocks 21 may separate from the auxiliary lens 2 after prolonged use. The integral molding process avoids the degradation or failure of adhesive during high-temperature sterilization, ensuring that the locking blocks 21 and the auxiliary lens 2 remain firmly connected even after repeated sterilization, thus avoiding the risk of separation due to adhesive aging.

[0038] The main lens 1 has a length of 17–19 cm and a width of 2–3.5 cm. Preferably, the main lens 1 has a length of 17.5–18.5 cm and a width of 2.8–3.3 cm. The auxiliary lens 2 and the support lens 3 are adapted to the main lens 1. The combined thickness of the auxiliary lens 2, the main lens 1, and the support lens 3 is 1.2–2 cm. Preferably, the combined thickness of the auxiliary lens 2, the main lens 1, and the support lens 3 is 1.3–1.8 cm.

[0039] During video laryngoscopy intubation, general anesthesia is usually required to reduce patient discomfort and reflexes due to the sensitivity of the pharynx. However, after general anesthesia, patients are prone to acid reflux. Furthermore, the impact of general anesthesia on intubation and video laryngoscopy is mainly reflected in the following aspects:

[0040] 1. After general anesthesia, the patient's tongue muscles relax, which may cause the tongue to fall back, thus affecting airway patency and the operating space of the video laryngoscope.

[0041] 2. General anesthesia suppresses the patient's pharyngeal reflex. Although this reduces stimulation during intubation, it may also lead to retention of secretions or reflux, increasing the risk of aspiration.

[0042] 3. After anesthesia, the anatomy of the patient's head and neck may change, such as the tongue falling back or the jaw relaxing, which may make it difficult for the video laryngoscope to expose the glottis, affecting the success rate of intubation and the operation time.

[0043] In this invention, the volume of the auxiliary lens 2, the main lens 1, and the support lens 3 is significantly reduced compared to existing video laryngoscopes. This compact structural design brings the following significant advantages:

[0044] 1. The reduced size of the video laryngoscope makes it more flexible to operate in narrow spaces, especially suitable for children or patients with complex anatomy. This design can effectively improve the accuracy of intubation and reduce the difficulty of operation.

[0045] 2. Due to the reduced size of the instrument, the pressure on the patient's oral cavity is significantly reduced, thereby alleviating discomfort during intubation. This is especially important for patients who require long-term intubation and can effectively improve the patient's experience.

[0046] 3. The reduced-size video laryngoscope can be used under induced anesthesia. After induction, the patient gradually transitions from a conscious state to an unconscious state, and the posterior displacement of the tongue is relatively mild. At this time, the smaller instrument size makes it easier to expose the glottis, reduces interference with the tongue, and thus improves the success rate of intubation.

[0047] 4. The reduced size of the video laryngoscope causes less stimulation to the patient during operation, reducing the risk of aspiration and acid reflux, while also reducing damage to the larynx and oral cavity.

[0048] Please see Figures 1 to 9 A flexible hose 5 for connecting external devices is installed between the support lens 3 and the main lens 1. One end of the support lens 3 is provided with an opening 31 and a first channel 32 leading to the opening 31 is formed at one end of the support lens 3. It also includes a connector 4. A second channel 42 is formed on the lower end surface of the connector 4. The connector 4 is covered above the first channel 32. The first channel 32 and the second channel 42 are combined to form a blow-suction channel 10. One end of the connector 4 is also provided with a socket 41 for connecting the flexible hose 5. The flexible hose 5, the blow-suction channel 10 and the opening 31 are connected.

[0049] Please see Figures 4 to 9The connector 4 is U-shaped, and the second channel 42 extends along the U-shaped contour of the connector 4 to form a corresponding U-shaped channel structure. The shape of the first channel 32 corresponds to the second channel 42, and the opening 31 is located at the U-shaped bend of the first channel 32. Both ends of the connector 4 are provided with sockets 41, and two flexible tubes 5 are fixedly inserted into the two sockets 41 respectively. A first positioning groove 34 is formed on the inner side of the first channel 32, and a second positioning groove 35 is formed on the outer side. The inner edge of the connector 4 is engaged in the first positioning groove 34, and the outer edge of the connector 4 is engaged in the second positioning groove 35. The upper end face of the connector 4 fits with the main lens 1, and the lower end face of the connector 4 fits with the supporting lens 3. The connector 4 is engaged with the supporting lens 3 through the first positioning groove 34 and the second positioning groove 35, ensuring channel alignment and sealing, preventing the end face of the flexible tube 5 from protruding, thereby reducing the risk of tissue contact.

[0050] The support lens 3 and connector 4 together form a U-shaped air-suction channel 10. After the first channel 32 and the second channel 42 are combined, airflow or negative pressure is transmitted through the tubing 5 to the opening 31 via the air-suction channel 10 to achieve the function of blowing air or suctioning sputum. The sockets 41 at both ends of the connector 4 fix the two tubing 5, and the tubing 5 is connected to the external device through the connecting tube 6 to ensure a stable and sealed airflow path. The connector 4 is U-shaped, and the opening 31 is located at the bend of the U-shape to avoid the end face of the tubing 5 protruding, reducing the risk of scratching the pharyngeal tissues during intubation.

[0051] Please see Figure 1 , Figure 2 and Figure 10 It also includes a connecting pipe 6, and the supporting lens 3 is provided with a mounting groove 33 for installing the connecting pipe 6. The ends of the two flexible hoses 5 away from the connector 4 are respectively fixedly inserted into the connecting pipe 6, and the connecting pipe 6 is connected to the two flexible hoses 5. One end of the connecting pipe 6 is provided with an air vent 62, and the air vent 62 is detachably fitted with a sealing plug (not shown in the figure); one end of the connecting pipe 6 is provided with a connector 61 for connecting external equipment. The sealing plug is a direct application of existing technology, and its principle will not be elaborated here.

[0052] For suctioning sputum, connector 61 of connecting tube 6 should be connected to the medical unit's vacuum pump; for oxygen administration, connector 61 of connecting tube 6 should be connected to the medical unit's oxygen source; for targeted medication delivery, connector 61 of connecting tube 6 should be connected to a medication delivery device. For suctioning sputum, the sealing plug on the vent 62 of connecting tube 6 should be removed to allow the operator to open / close the vent 62 with their thumb to control the suctioning process. For oxygen administration or medication delivery, the vent 62 of connecting tube 6 should be tightly sealed with a sealing plug so that oxygen or medication can be directly delivered through the tubing 5 and the inhalation / blowout channel 10 to the opening 31 for oxygen administration or targeted medication delivery.

[0053] Once the tubing 5 and the ventilation / suspension channel 10 are used for suctioning, they cannot be used for oxygen administration or targeted medication delivery. Typically, oxygen administration and targeted medication delivery are performed at the beginning of endotracheal intubation and can still be used for suctioning subsequently.

[0054] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A video laryngoscope, comprising: An auxiliary lens (2), a main lens (1), and a support lens (3) are sequentially interlocked from front to back. A flexible hose (5) for connecting an external device is fitted between the support lens (3) and the main lens (1). The support lens (3) has an opening (31) at one end and a first channel (32) leading to the opening (31) at one end. The support lens (3) also includes a connector (4). A second channel (42) is formed on the lower end face of the connector (4). The connector (4) covers the first channel (32). The first channel (32) and the second channel (42) are combined to form a blow-suction channel (10). A socket (41) for connecting the flexible hose (5) is also provided at one end of the connector (4). The flexible hose (5), the blow-suction channel (10), and the opening (31) are connected.

2. The video laryngoscope as described in claim 1, characterized in that, The connector (4) is U-shaped, and the second channel (42) extends along the U-shaped outline of the connector (4) to form a corresponding U-shaped channel structure. The shape of the first channel (32) corresponds to that of the second channel (42). The opening (31) is located at the U-shaped bend of the first channel (32). Both ends of the connector (4) are provided with sockets (41). There are two hoses (5), and the two hoses (5) are fixedly inserted into the two sockets (41).

3. A video laryngoscope as described in claim 2, characterized in that, The first channel (32) has a first positioning groove (34) formed on the inner side and a second positioning groove (35) formed on the outer side. The inner edge of the connector (4) is engaged in the first positioning groove (34) and the outer edge of the connector (4) is engaged in the second positioning groove (35).

4. A video laryngoscope as described in claim 1, characterized in that, The upper end face of the connector (4) is fitted with the main lens (1), and the lower end face of the connector (4) is fitted with the supporting lens (3).

5. A video laryngoscope as described in claim 2, characterized in that, It also includes a connecting pipe (6), with the ends of the two hoses (5) away from the connector (4) respectively fixedly inserted into the connecting pipe (6), the connecting pipe (6) being connected to the two hoses (5), one end of the connecting pipe (6) being provided with an air outlet (62), the air outlet (62) being detachably fitted with a sealing plug; one end of the connecting pipe (6) being provided with a connector (61) for connecting external equipment.

6. A video laryngoscope as described in claim 1, characterized in that, The auxiliary lens (2) has symmetrically formed locking blocks (21) at its left and right ends, and the main lens (1) has locking grooves (11) at its left and right ends that cooperate with the two locking blocks (21); the two locking blocks (21) and the auxiliary lens (2) are integrally formed.

7. A video laryngoscope as described in claim 1, characterized in that, The main lens (1) has a length of 17-19cm and a width of 2-3.5cm; the auxiliary lens (2) and the support lens (3) are adapted to the size of the main lens (1).

8. A video laryngoscope as described in claim 1, characterized in that, The combined thickness of the auxiliary lens (2), the main lens (1), and the support lens (3) is 1.2 to 2 cm.

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