A visual rigid laryngoscope with a disposable protective lens

Abstract

The utility model discloses a visual rigid laryngoscope with a disposable lens shield, comprising a lens shield assembly and a laryngoscope assembly, wherein the lens shield assembly comprises a disposable protective lens, and the laryngoscope assembly comprises a laryngoscope pipeline arranged in parallel with the disposable protective lens, an upwardly warped front edge portion is arranged at the end of the disposable protective lens, a suction port is arranged on the front edge portion, the suction port is communicated with a suction pipeline arranged in the disposable protective lens, lens wings are symmetrically arranged on the outer side of the front edge portion, and the laryngoscope pipeline is located between the two symmetrically arranged lens wings; lens wings are arranged on both sides of the end of the disposable protective lens to separate the laryngoscope pipeline from the tongue or secretions during the intubation process, and a suction port is arranged and connected to the suction pipeline to absorb the secretions around the laryngoscope pipeline, thereby maximally avoiding the influence of the tongue and secretions in front of and on the side of the lens on the intubation field, so as to obtain a larger intubation field.

Description

Technical Field

[0001] The utility model relates to the technical field of endotracheal intubation tools, in particular to a visual rigid laryngoscope with a disposable lens. Background Art

[0002] The video rigid laryngoscope is a quick-resolve tool for difficult airway intubation. It is used in emergency medicine and clinical general anesthesia to establish an airway to ensure the patient's airway safety and lung ventilation. When an individual must be ventilated, such as after receiving general anesthesia or respiratory arrest, this technology inserts an endotracheal tube (i.e., a flexible plastic tube) into the patient's trachea to ventilate their lungs. During intubation, the endotracheal tube must be inserted into the video rigid laryngoscope to guide the endotracheal intubation: lift the lower jaw with the left hand, insert the video rigid laryngoscope from the right molar position, perpendicular to the patient's body long axis, and then rotate the video rigid laryngoscope 90 degrees counterclockwise to the center of the mouth. At this time, the situation inside the mouth can be seen on the screen, and the epiglottis and glottis are searched and clearly seen, and then the trachea is entered through the epiglottis and vocal cords.

[0003] When using the existing rigid laryngoscope, it is necessary to put on the endotracheal tube and then guide the endotracheal intubation. Because its front end (insertion end) is shaped in accordance with the respiratory anatomy and is small, it becomes relatively easy to expose the glottis of some patients with difficult airway in clinical practice, such as those with small mouth opening, loose or missing teeth, and high glottis position. However, there are also obvious disadvantages: 1. The display field of view is narrow and does not have suction function; 2. The lens field of view is easily blocked by secretions or the tongue: when guiding endotracheal intubation, although the rigid laryngoscope lens is located in the catheter cavity, the secretions can easily enter the endotracheal tube cavity through the front opening and side holes of the endotracheal tube, thereby blocking the lens field of view. This is especially true for some difficult airway patients with a lot of secretions in the mouth, difficult to expose the laryngeal cavity with manipulation, epiglottis close to the posterior pharyngeal wall, and oropharyngeal damage, so it is difficult to obtain successful intubation. These shortcomings limit the clinical application of visual rigid laryngoscopes. Utility Model Content

[0004] In view of the shortcomings of the prior art, a visual rigid laryngoscope with a disposable lens is proposed, which solves the problems of small intubation field and easy obstruction by tongue secretions during intubation of the visual rigid laryngoscope in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model proposes the following technologies to achieve it:

[0006] A visual rigid laryngoscope with a disposable lens shield comprises a lens shield assembly and a laryngoscope assembly, wherein the lens shield assembly comprises a disposable protective lens, and the laryngoscope assembly comprises a laryngoscope pipeline arranged in parallel with the disposable protective lens, an upwardly warped front edge portion is arranged at the end of the disposable protective lens, a suction port is arranged on the front edge portion, the suction port is connected to the suction pipeline arranged in the disposable protective lens, lens wings are symmetrically arranged on the outer side of the front edge portion, and the laryngoscope pipeline is located between two symmetrically arranged lens wings.

[0007] Furthermore, the lens wings are arc-shaped and protrude in a direction away from the front edge portion, and the two lens wings and the front edge portion form a protective structure with a U-shaped longitudinal section.

[0008] Furthermore, the suction port is concave and rectangular, the diameter of the suction pipeline at one end close to the suction port gradually increases, and an outlet end is provided at the end of the suction pipeline, and a disposable protective lens extends out of the outlet end and is connected to an external device.

[0009] Furthermore, one end of the disposable protective lens away from the front edge is detachably connected to a handle, the laryngoscope pipeline passes through the handle and is fixedly connected to the handle, and one end of the laryngoscope pipeline away from the front edge is connected to a display screen via a joint.

[0010] Furthermore, a fixing plate is provided on the handle, and the fixing plate is clamped with the disposable protective lens.

[0011] Furthermore, the laryngoscope assembly also includes a tracheal tube, the laryngoscope pipeline is arranged in the tracheal tube, and the disposable protective lens is provided with a fixing wing and is clamped with the tracheal tube through the fixing wing.

[0012] Furthermore, two fixing wings are provided, which are located at the non-oral insertion end of the protective lens, and the two fixing wings are arranged opposite to each other to clamp the tracheal tube, and the fixing wings are fixedly connected to the disposable protective lens.

[0013] Furthermore, the cross section of the fixing wing is arc-shaped, and the arc matches the shape of the tracheal tube.

[0014] Furthermore, a tracheal tube connector is provided at one end of the tracheal tube away from the front edge, the laryngoscope pipeline passes through the tracheal tube connector, and the tracheal tube connector is provided with a protrusion, which is convenient for hand-held pushing of the tracheal tube to slide along the laryngoscope pipeline and pass through the fixed wing arc on the disposable protective lens; a limiter is provided on the side of the laryngoscope pipeline adjacent to the handle.

[0015] Furthermore, the handle includes a first handle and a second handle, the disposable protective lens is mounted on the first handle, the first handle and the second handle are detachably connected via a rotating slot, and an electrical connection joint is provided in the rotating slot.

[0016] Compared with the prior art, the comprehensive effects brought by the utility model include:

[0017] (1) The lens wings are arranged on both sides of the ends of the disposable protective lens to better protect the lens and other components at the end of the laryngoscope pipeline insertion end, and the laryngoscope pipeline is separated from the tongue or secretions during the intubation process. At the same time, a suction port is arranged and the suction pipeline is connected to absorb the secretions around the laryngoscope pipeline and remove the secretions in front of the lens, thereby minimizing the influence of the tongue and secretions in front of and on the side of the lens on the intubation field of view, so as to obtain a larger intubation field of view, and solve the problem that the intubation field of view is easily blocked by the tongue or secretions during the intubation process.

[0018] (2) The disposable protective lens is detachably connected to the fixing plate on the handle through a snap-fit ​​structure, which facilitates the replacement of the disposable protective lens. The disposable and replaceable setting can greatly reduce the chance of cross infection and reduce the cost of laryngoscope disinfection. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of the protective lens insertion end of the utility model embodiment;

[0020] Figure 2 This is a schematic diagram of the structure of the protective lens and the endotracheal tube insertion end of the embodiment of the utility model;

[0021] Figure 3 This is a cross-sectional schematic diagram of the connection between the protective lens and the tracheal tube handle of the embodiment of the utility model;

[0022] Figure 4 This is a side view of the connection structure between the protective lens and the fixing plate of the embodiment of the utility model;

[0023] Figure 5 This is a top view schematic diagram of the connection structure between the protective lens and the fixing plate of the embodiment of the utility model;

[0024] Figure 6 This is a schematic diagram of the coordination between the first handle and the second handle of an embodiment of the utility model.

[0025] Legend: 1. Front edge; 2. Suction port; 3. Lens wing; 4. Suction pipeline; 5. Disposable protective lens; 6. Fixed wing; 7. Tracheal tube; 8. Laryngoscope pipeline; 9. Fixed plate; 10. Tracheal tube connector; 11. Inspection component; 12. Buckle; 13. Snap block; 14. First handle; 15. Second handle; 16. Limiter; 17. Outlet end; 18. Display screen; 19. First connector; 20. Second connector; 21. Raised portion. DETAILED DESCRIPTION

[0026] The following will be combined with the accompanying drawings to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the protection scope of the utility model.

[0027] In this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. The orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "top", etc. is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation to the utility model.

[0028] like Figures 1 to 6 As shown, a visual rigid laryngoscope with a disposable lens shield includes a lens shield assembly and a laryngoscope assembly, wherein the lens shield assembly includes a disposable protective lens 5, and the laryngoscope assembly includes a laryngoscope pipeline 8 parallel to the disposable protective lens 5, an end portion of the disposable protective lens 5 is provided with an upwardly warped front edge portion 1, the front edge portion 1 is provided with a suction port 2, the suction port 2 is connected to a suction pipeline 4 arranged in the disposable protective lens 5, lens wings 3 are symmetrically arranged on the outer side of the front edge portion 1, and the laryngoscope pipeline 8 is located between the two symmetrically arranged lens wings 3.

[0029] Lens wings 3 are provided on both sides of the end of the disposable protective lens 5 to provide better protection for the lens and other components at the insertion end of the laryngoscope pipeline 8, and the laryngoscope pipeline 8 is separated from the tongue or secretions during the intubation process. At the same time, a suction port 2 is provided and the suction pipeline 4 is connected to absorb the secretions around the laryngoscope pipeline 8 and clear the secretions in front of the lens, thereby minimizing the influence of the tongue and secretions in front of and on the side of the lens on the intubation field of view, so as to obtain a larger intubation field of view, and solve the problem that the intubation field of view is easily blocked by the tongue or secretions during the intubation process. At the same time, the protruding front edge 1 is also easier to lift the epiglottis, thereby improving the convenience, controllability, safety of intubation and the success rate of clinical treatment of difficult airways.

[0030] Specifically, the rear end cross-section of the disposable protective lens 5 is rectangular, and the upwardly warped front edge 1 matches the shaping curvature of the front end insertion section of the laryngoscope pipeline 8, so that the disposable protective lens 5 and the laryngoscope pipeline 8 fit more closely and are easy to insert; preferably, the laryngoscope pipeline 8 is made of stainless steel, the disposable protective lens 5 is made of hard PVC, the front edge 1 is blunt and protrudes from the front end of the laryngoscope pipeline 8, and in order to better ensure the field of view, the front edge 1 protrudes forward from the front end of the laryngoscope pipeline 8 by 1.5-2 cm.

[0031] In the visual rigid laryngoscope with a disposable protective lens of the present embodiment, the end of the disposable protective lens 5 away from the front edge 1 is connected to the handle via a fixing plate 9 and is detachable, the laryngoscope pipeline 8 passes through the handle and is fixedly connected to the handle, and the end of the laryngoscope pipeline 8 away from the front edge 1 is connected to the display screen 18 via a connector.

[0032] The disposable protective lens 5 is detachably connected to the fixing plate 9 to facilitate replacement of the disposable protective lens 5. The disposable and replaceable arrangement can greatly reduce the chance of cross infection and reduce the cost of laryngoscope disinfection.

[0033] Specifically, in this embodiment, a detection component 11 is provided at the front end of the laryngoscope pipeline 8, including an imaging module and a lighting module. The wires of the imaging module and the lighting module are connected to the portable handle and the portable display screen 18 through the laryngoscope pipeline 8. Preferably, the connector includes a first connector 19 and a second connector 20.

[0034] In the visual rigid laryngoscope with a disposable protective lens of this embodiment, the handle includes a first handle 14 and a second handle 15. The disposable protective lens 5 is installed on the first handle 14. The first handle 14 and the second handle 15 are detachably connected through a rotating slot, and an electrical connection joint is provided in the rotating slot; a fixing plate 9 is provided on the first handle 14, and the fixing plate 9 is clamped with the disposable protective lens 5.

[0035] Specifically, a snap-on block 13 is provided on the fixing plate 9, and a buckle 12 is provided on the protective lens 5. The buckle 12 and the snap-on block 13 are detachably installed, and a snap-on structure is provided to improve the connection strength between the fixing plate 9 and the disposable protective lens 5. At the same time, the buckle 12 and the snap-on block 13 are convenient to open and fasten together, and are convenient for quick replacement; the electrical connection between the imaging system and the lighting module between the first handle 14 and the second handle 15 is connected through a rotating slot.

[0036] Preferably, the second handle 15 has function keys for recording video and taking photos, and the second handle 15 and the first handle 14 are connected via a rotating slot, which facilitates the separation and disinfection of the first handle 14 and the fixedly connected laryngoscope assembly from the second handle 15 and the portable display screen 18; the second handle 15 is connected to the portable display screen 18 via the first connector 19 and the second connector 20, which facilitates the rotation adjustment of the display screen 18 forward, backward, left and right.

[0037] Preferably, the imaging element in the imaging module in this embodiment is a CCD or CMOS, which is used to capture images of the inside of the oropharynx and trachea, and transmit the images to the portable display screen 18 through the laryngoscope pipeline 8, the pipeline in the first handle 14, the second handle 15, and the display device connector, so that the operator can view the internal conditions of the oral cavity (such as the specific conditions of the tongue, epiglottis, glottis, trachea, etc.). The imaging module includes a variety of viewing angle specifications. The lighting module is a high-power LED light source, and the power enters through the display device connector and enters and transmits through the second handle 15, the first handle 14, and the inside of the laryngoscope pipeline 8.

[0038] In the visual rigid laryngoscope with a disposable lens protector of this embodiment, the lens wings 3 are arc-shaped and protrude in a direction away from the front edge portion 1, and the two lens wings 3 and the front edge portion 1 form a protective structure with a U-shaped longitudinal section.

[0039] The lens wings 3 arranged on both sides of the end of the disposable protective lens 5 make the end cross-section U-shaped to form a protective cavity to accommodate the laryngoscope pipeline 8, separate the end of the laryngoscope pipeline 8 from the secretions, and ensure the field of view of the lens. At the same time, the arc structure can reduce the contact area between the front end of the lens wing 3 and the throat, which is convenient for inserting the laryngoscope and avoiding scratching the throat; preferably, the length of the lens wing 3 is 2-3cm.

[0040] In the visual rigid laryngoscope with a disposable protective lens of this embodiment, the suction port 2 is concave and rectangular, the diameter of the suction pipeline 4 at one end close to the suction port 2 gradually increases, and an outlet end 17 is provided at the end of the suction pipeline 4, and the outlet end 17 extends out of the disposable protective lens 5 and is connected to an external device.

[0041] Specifically, the suction line 4 gradually closes in the direction away from the front edge 1 to finally form a circular suction line, and the outlet end 17 of the suction line 4 is arranged on the left edge of the non-insertion section of the disposable protective lens 5 outside the oral cavity, so as to connect a negative pressure suction device or an oxygen supply device. Preferably, the outlet end 17 can be arranged 15 cm away from the front end of the disposable protective lens 5.

[0042] The suction line 4 opening located at the front edge of the disposable protective lens 5 can conveniently remove secretions in front of the lens, and can also be used to supply oxygen through the line; at the same time, the built-in suction line 4 also makes the disposable protective lens 5 more compact and convenient for oral intubation. The suction port 2 is a concave rectangular structure, which is convenient for increasing the suction area while avoiding scratching the throat.

[0043] In the visual rigid laryngoscope with a disposable protective lens of this embodiment, the laryngoscope assembly also includes an endotracheal tube 7, the laryngoscope pipeline 8 can be inserted into the endotracheal tube 7, and the disposable protective lens 5 is provided with a fixing wing 6 and is clamped with the endotracheal tube 7 through the fixing wing 6.

[0044] Specifically, the disposable protective lens 5 is provided with fixing wings 6 on both sides of the outer side of the non-oral insertion end, so as to fit and fix the disposable protective lens 5 above the tracheal tube 7.

[0045] Preferably, the arc width of the lens wing 3 is slightly smaller than the outer diameter of the tracheal tube 7, so as to better cooperate with the tracheal tube 7. When implementing tracheal intubation, the lens wing 3 does not affect the sliding of the tracheal tube along the laryngoscope line 8.

[0046] In the visual rigid laryngoscope with a disposable protective lens of this embodiment, two fixed wings 6 are provided, and the two fixed wings 6 are arranged opposite to each other to clamp the tracheal tube 7. The fixed wings 6 are fixedly connected to the disposable protective lens 5. The cross-section of the fixed wings 6 is arc-shaped, and the arc matches the shape of the tracheal tube 7.

[0047] The two symmetrically arranged fixing wings 6 form a buckle, and the cross-section of the combination with the disposable protective lens 5 is C-shaped, which is convenient for clamping with the tracheal tube 7 to achieve fixation and is also convenient for disassembly.

[0048] In the visual rigid laryngoscope with a disposable lens cover of this embodiment, a tracheal tube connector 10 is provided at one end of the tracheal tube 7 away from the front edge portion 1 , and the laryngoscope pipeline 8 passes through the tracheal tube connector 10 .

[0049] The endotracheal tube connector 10 is provided with a raised portion 21, which is convenient for hand-held pushing of the endotracheal tube 7 to slide along the laryngoscope pipeline 8 and enter the respiratory tract during endotracheal intubation; the raised portion 21 of the endotracheal tube connector 10 can pass through the arc opening of the fixed wing 6 on the disposable protective lens 5 during endotracheal intubation.

[0050] A limiter 16 is provided on one side of the laryngoscope pipeline 8 adjacent to the handle so as to limit and fix the tracheal tube 7 inserted into the laryngoscope pipeline 8; the laryngoscope pipeline 8 passes through the limiter 16, and the limiter 16 can be embedded in the tracheal tube connector 10 to prevent the tracheal tube 7 and the laryngoscope pipeline 8 from sliding relative to each other.

[0051] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "rotation" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, for ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to the specific circumstances.

[0052] Although the embodiments of the present invention have been shown and described in detail, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A visual rigid laryngoscope with a disposable protective lens, characterized in that: The invention comprises a lens shield assembly and a laryngoscope assembly, wherein the lens shield assembly comprises a disposable protective lens, and the laryngoscope assembly comprises a laryngoscope pipeline arranged in parallel with the disposable protective lens, an upwardly warped front edge portion is arranged at the end of the disposable protective lens, a suction port is arranged on the front edge portion, the suction port is connected with a suction pipeline arranged in the disposable protective lens, lens wings are symmetrically arranged on the outer side of the front edge portion, and the laryngoscope pipeline is located between two symmetrically arranged lens wings.

2. A visual rigid laryngoscope with a disposable lens according to claim 1, characterized in that: The lens guard wings are arc-shaped and protrude in a direction away from the front edge portion. The two lens guard wings and the front edge portion form a protective structure with a U-shaped longitudinal section.

3. A visual rigid laryngoscope with a disposable lens according to claim 1, characterized in that: The suction port is concave and rectangular, the diameter of the suction pipeline at one end close to the suction port gradually increases, and an outlet end is provided at the end of the suction pipeline, and a disposable protective lens extends out of the outlet end and is connected to an external device.

4. A visual rigid laryngoscope with a disposable lens according to claim 1, characterized in that: One end of the disposable protective lens away from the front edge is connected to the fixing plate on the handle and is detachable, the laryngoscope pipeline passes through the handle and is fixedly connected to the handle, and one end of the laryngoscope pipeline away from the front edge is connected to the display screen through a joint.

5. A visual rigid laryngoscope with a disposable lens according to claim 1, characterized in that: The laryngoscope assembly also includes an endotracheal tube, the laryngoscope pipeline is arranged in the endotracheal tube, and the disposable protective lens is provided with a fixing wing and is clamped with the endotracheal tube through the fixing wing.

6. A visual rigid laryngoscope with a disposable protective lens according to claim 5, characterized in that: The fixed wings are provided with two, and are located at the end of the disposable protective lens that is not inserted into the oral cavity. The two fixed wings are arranged opposite to each other to clamp the tracheal tube, and the fixed wings are fixedly connected to the disposable protective lens.

7. A visual rigid laryngoscope with a disposable lens according to claim 6, characterized in that: The cross section of the fixing wing is arc-shaped, and the arc shape matches the shape of the tracheal tube.

8. A visual rigid laryngoscope with a disposable lens according to claim 5, characterized in that: A tracheal tube connector is provided at one end of the tracheal tube away from the front edge, the laryngoscope pipeline passes through the tracheal tube connector, and the tracheal tube connector is provided with a raised portion, which is convenient for hand-held pushing of the tracheal tube to slide along the laryngoscope pipeline and pass through the fixed wing arc on the disposable protective lens; a limiter is provided on the side of the tracheal tube connector away from the tracheal tube.

9. A visual rigid laryngoscope with a disposable lens according to claim 4, characterized in that: The handle comprises a first handle and a second handle, the disposable protective lens is mounted on the first handle, the first handle and the second handle are detachably connected via a rotating slot, and an electrical connection joint is provided in the rotating slot.

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