Laryngoscope intubation and laryngoscope

Abstract

The present invention provides a video laryngoscope, which comprises a reusable camera assembly and a display assembly; a reusable rod body, the rod body having a fixed extension height a, a reusable flexible connecting line, the flexible connecting line passing through the rod body and connected to the display assembly, the flexible connecting line having an embedded section located in the rod body and an exposed section protruding from the distal end of the rod body, the exposed section having a fixed extension length b; the camera assembly is installed at the distal end of the exposed section; a disposable laryngoscope cannula, the laryngoscope cannula has a channel formed inside thereof that passes through a handle section, a transition section and a base, the channel being used to accommodate the rod body and the exposed section of the flexible connecting line so that the camera assembly reaches the distal end of the base channel; the distal end of the base is sealed by a transparent material; the extension length h from the proximal end of the rod body to the distal end of the flexible connecting line is approximately equal to the extension length m of the channel from the proximal end to the distal end; the extension height c of the channel that passes through the handle section is not less than the extension length a of the rod body.

Description

Technical Field

[0001] The invention belongs to the technical field of medical instruments, and in particular relates to a laryngoscope cannula and a laryngoscope comprising the laryngoscope cannula. Background Art

[0002] With the advancement of medical device technology, laryngoscopes have become a necessary medical device for hospitals. Existing laryngoscopes include a handle and a lens. The lens is installed on a matching handle to ensure that the lens is fixedly installed on the handle. The handle is reused many times. The lens has a large lens, a medium lens and a small lens. The large lens is mostly used for adult men, the medium lens is mostly used for adult women, and the small lens is mostly used for children and teenagers. When using, the patient lies on his back, tilts his head back as much as possible, and holds the laryngoscope in his left hand and enters the oral cavity along the right corner of the mouth; slowly push the lens to the root of the tongue until the epiglottis is seen, and hold the tracheal tube in his left hand and put it into the groove of the laryngoscope blade tongue depressor; during use, stainless steel laryngoscope blades and handles are used, but the material is expensive, and there is a phenomenon of cross infection between patients caused by incomplete disinfection. In order to meet the needs of some patients with weak immune systems and the needs of hospital infection control, disposable laryngoscope blades came into being. However, most of the existing disposable laryngoscope blades cannot protect the handle part of the laryngoscope. After use, if the laryngoscope handle cannot be completely disinfected, it still has the risk of infection, which has certain hidden dangers for doctors and patients.

[0003] The invention patent application document with application publication number CN108720798A discloses a laryngoscope that can protect the handle of the laryngoscope. The handle of the laryngoscope is retractable, and each laryngoscope needs to be equipped with multiple laryngoscope blades. When doctors examine different patients, they will waste time adjusting the length of the laryngoscope handle to match the laryngoscope blade, thereby reducing medical efficiency, and the laryngoscope blade used may not match the patient, resulting in a waste of laryngoscope blades. Secondly, the shape of the top of the laryngoscope blade at the protective handle position is relatively smooth. When the doctor holds the laryngoscope blade or the patient vomits during treatment, the upper end of the handle may be contaminated, causing cross infection. Summary of the invention

[0004] In view of the above technical problems, the present invention provides a video laryngoscope, which comprises:

[0005] Multiple-use camera and display components;

[0006] A rod body that can be used multiple times, the rod body having a fixed extension height a, and a display assembly disposed at the top of the rod body;

[0007] A flexible connecting line that can be used multiple times, the flexible connecting line passes through the rod body and is connected to the display assembly, the flexible connecting line has an embedded section located in the rod body and an exposed section protruding from the distal end of the rod body, the exposed section has a fixed extension length b; the camera assembly is installed at the distal end of the exposed section;

[0008] A disposable laryngoscope cannula, the laryngoscope cannula comprising a handle section for a doctor to hold, a blade section for inserting into a patient's mouth, and a transition section formed between the handle section and the blade section, the blade section comprising a base extending from the end of the handle section and a tongue depressor located at the distal end of the base;

[0009] A channel is formed inside the laryngoscope cannula, which passes through the handle section, the transition section and the base, and the channel is used to accommodate the rod body and the exposed section of the flexible connecting line, so that the camera assembly reaches the distal end of the base channel; the distal end of the base is sealed by a transparent material;

[0010] The laryngoscope meets the following conditions:

[0011] The extension length h from the proximal end of the rod body to the distal end of the flexible connecting line is approximately equal to the extension length m of the channel from the proximal end to the distal end;

[0012] The extension height c of the channel running through the handle section is not less than the extension length a of the rod body;

[0013] The through-base channel extends a length e to fit the patient's throat.

[0014] In some embodiments of the present invention, a buckle structure is provided between the handle section and the rod body, and the rod body and the exposed section of the flexible connecting line can be inserted into the channel in a removable manner through the buckle structure.

[0015] In some embodiments of the present invention, the camera assembly includes a camera and a light source arranged adjacent to the camera.

[0016] In some embodiments of the present invention, the buckle structure is realized by the following structure: the inner wall of the handle section forms a slot, and the outer wall of the rod body forms an elastic protrusion matching the slot.

[0017] In some embodiments of the present invention, a flared portion is formed at the entrance of the channel, and the periphery of the flared portion forms a retaining edge facing outward.

[0018] In some embodiments of the present invention, the flexible connecting line includes a connecting wire and a hose wrapping the connecting wire, and the flexible connecting line can be bent inside the laryngoscope cannula through the hose.

[0019] In some embodiments of the present invention, the laryngoscope cannula is constructed into laryngoscope cannulae of different specifications by changing the extension length e of the channel through the base, and the laryngoscope cannulae of different specifications are suitable for the same specification of the rod body and the flexible connecting line.

[0020] In some embodiments of the present invention, the cross-section of the channel running through the handle segment is rectangular.

[0021] In some embodiments of the present invention, the laryngoscope cannula is an integrally formed transparent tube.

[0022] The invention also provides a laryngoscope cannula.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] The video laryngoscope provided by the present invention can achieve comprehensive protection of the rod body, eliminating the risk of cross infection between patients or between patients and doctors;

[0025] In addition, the present invention provides a rod body with certain specifications, a flexible connecting line and laryngoscope cannulas of different specifications. During use, laryngoscope cannulas of different specifications can be adapted without adjusting the height of the rod body, making it convenient and quick for doctors to replace laryngoscope cannulas.

[0026] Furthermore, the top end design of the laryngoscope cannula provided by the present invention has the function of preventing the doctor's hand from slipping to the top end of the rod body, thereby further avoiding cross infection. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A schematic diagram of the structure of a laryngoscope provided by the present invention;

[0028] Figure 2 A front view and a side view of a multi-use assembly provided by the present invention;

[0029] Figure 3 A schematic diagram of the structure of the laryngoscope cannula provided by the present invention;

[0030] Figure 4 It is a cross-sectional schematic diagram of AA of the laryngoscope cannula of the present invention. DETAILED DESCRIPTION

[0031] The present invention or the technical solution of the invention will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings;

[0032] In the description of the present invention, it should be understood that the terms "near", "far", "top", "inside", "outside", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention; in the present application, the proximal end should be interpreted as the part close to the operator (doctor), and the distal end should be understood as the part away from the doctor.

[0033] In the description of the present invention, it should be noted that, unless otherwise specified and limited, the terms "installation" and "connection" should be understood in a broad sense. For example, it can be a mechanical connection or an electrical connection, or it can be the internal connection of two components. It can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances.

[0034] like Figure 1 As shown, the present invention provides a video laryngoscope, which includes a multiple-use component (reference Figure 2 ) and a disposable laryngoscope cannula, the multiple-use components include a camera component 4 and a display component 1, a multiple-use rod body 2, and a multiple-use flexible connecting line; in the present invention, the multiple-use rod body, the multiple-use flexible connecting line and the camera component are removably inserted into the laryngoscope cannula, and the display component is movably arranged on the top of the rod body. During the operation, the doctor holds the handle section of the laryngoscope cannula in his hand to insert the blade section of the laryngoscope cannula into the patient's throat. During the whole process, the rod body and the flexible connecting line are arranged inside the laryngoscope cannula, and only the outer side of the laryngoscope cannula comes into contact with the doctor and the patient, thereby effectively avoiding the phenomenon of cross infection.

[0035] Specifically, the present invention adopts the following structure:

[0036] The camera assembly 4 and the display assembly 1 used multiple times, such as Figure 1 and Figure 2 As shown, the camera assembly provided by the present invention includes a camera and a light source arranged adjacent to the camera; in this embodiment, the light source is an LED light installed around the camera 4; the display assembly provided by this embodiment is a display 1;

[0037] The rod body 2 can be used multiple times, and the rod body 2 has a fixed extension height a. The fixed extension height provided by the present invention means that the rod body has a certain extension height, and there is no need to use a telescopic structure for adjustment, nor to equip doctors with rod bodies of different extension heights; during the operation, the doctor only needs one rod body and does not need to replace the rod body, so the operation is fast and convenient, which improves the doctor's work efficiency; the display assembly 1 is installed at the proximal end of the rod body, and preferably, the display is pivotally mounted on the top of the rod body 2 through the mounting seat 6 and the rotating joint 7, so that the doctor can change the angle of the display 1 to adapt to the doctor's field of vision.

[0038] The flexible connecting wire 5 can be used repeatedly. The bendable property of the flexible connecting wire 5 enables it to be bent inside the non-linear laryngoscope cannula 3. In this way, laryngoscope cannula 3 of different specifications can be matched with the same specification of the rod body 2; the flexible connecting wire 5 is connected to the display assembly 1 after passing through the rod body 2, and has an embedded section (not shown in the figure) located in the rod body 2 and an exposed section 51 protruding from the distal end of the rod body, the exposed section 51 has a fixed extension length b, and the camera assembly 4 is installed at the distal end of the exposed section 51; it can be understood that the rod body 2 provided by the present invention forms a receiving cavity inside for the control board and the flexible connecting wire to penetrate, so that the flexible connecting wire can transmit the image obtained by the camera assembly to the display; in the present invention, the extension length h from the proximal end of the rod body 2 to the distal end of the flexible connecting wire 5 is determined, and the extension length h is the sum of the extension height a of the rod body 2 and the extension length b of the exposed section of the flexible connecting wire 5;

[0039] Disposable laryngoscope cannula 3, such as Figure 3 and Figure 4 As shown, the laryngoscope cannula comprises a handle section 31, a blade section 32 and a transition section 33 formed between the handle section 31 and the blade section 32. The handle section 31 is used for a doctor to hold, the transition section 33 is an arc-shaped transition section, the blade section 32 is used to probe into a patient's oral cavity, and the blade section 32 comprises a base 321 extending from the end of the handle section and a tongue depressor 322 located at the distal end of the base 321.

[0040] A channel 7 is formed inside the laryngoscope cannula, which passes through the handle section 31, the transition section 32 and the base 321. The channel includes a channel 71 passing through the handle section, a channel 72 passing through the transition section and a channel 73 passing through the base. The distal end 323 of the base 321 is sealed by a transparent material. The rod body 2 and the exposed section 51 of the flexible connecting line can be inserted in the channel in a removable manner. At this time, the camera assembly 4 can reach the distal end of the base. Since the distal end 323 of the base is sealed by a transparent material, the camera assembly is accommodated inside the channel, that is, the assembly used multiple times will not come into contact with the patient. In the laryngoscope provided by the present invention, the extension length from the proximal end of the rod body to the distal end of the flexible connecting line is h; the extension length of the channel from the entrance end to the closed end is m; the extension height of the rod body is a, and the extension length of the exposed section of the flexible connecting line is b; the extension height of the channel passing through the handle section is c, the extension length of the channel passing through the transition section is d, and the extension length of the channel passing through the base is e; wherein, h=a+b, m=c+d+e;

[0041] In the practical operation process, there are differences in the size of laryngoscope cannulas for infants, children and adults. Medical staff will choose the appropriate size of laryngoscope blade according to the patient's condition; therefore, the specifications of the blade segments are different. For example, the laryngoscopes provided in the prior art all have fixed handles, but the blade segments have three specifications: large, medium and small. If the extension length of the internal channel of the laryngoscope cannula designed according to this idea is variable, then the height of the rod body needs to be adjusted accordingly to adapt to the laryngoscope cannula, which is inconvenient to operate. Based on this, the present invention takes into account that during the doctor's operation, the extension height of the handle segment used by the doctor does not need to be strictly restricted, as long as it can be held; however, the specifications of the blade segments need to be strictly configured into different specifications, and further the specifications of the blade segments determine the extension length of the base channel, so the base channel extension length e provided by the present invention is adapted to the size of the patient's throat; illustratively, the present invention provides three specifications of laryngoscope cannulas A2, A3, and A4, and their parameters are detailed in Table 1:

[0042] Table 1

[0043] Specification Overall extension length The channel extending through the handle section has a height c The extension length of the channel through the transition section is d The channel extending through the base is e Laryngoscope Intubation A1 m <![CDATA[c1]]> <![CDATA[d1]]> <![CDATA[e1]]> Laryngoscope Intubation A2 m <![CDATA[c2]]> <![CDATA[d2]]> <![CDATA[e2]]> Laryngoscope Intubation A3 m <![CDATA[c3]]> <![CDATA[d3]]> <![CDATA[e3]]>

[0044] It can be seen from Table 1 that the laryngoscope cannula is configured into laryngoscope cannula of different specifications by changing the extension length e of the channel running through the base. The laryngoscope cannula of different specifications are suitable for the rod body and the flexible connecting line of the same specification. At the same time, it is necessary to take into account the adaptation with the rod body, and its overall extension length m needs to be consistent with the extension length h from the proximal end of the rod body to the distal end of the flexible connecting line. Therefore, it is necessary to lengthen or reduce the extension height c of the handle section channel. In this way, the present invention realizes that there is no need to replace or adjust the height of the rod body, and provides laryngoscope blade segments of different specifications for different patients. In addition, it does not affect the doctor's gripping operation.

[0045] As described above, the laryngoscope intubation provided by the present invention meets the following conditions:

[0046] The extension length h from the proximal end of the rod body to the distal end of the flexible connecting line is approximately equal to the extension length m of the channel from the entrance end to the closed end. In this way, the exposed sections of the rod body and the flexible connecting line have a fixed extension height. No matter how the extension length e of the channel through the base of the laryngoscope cannula changes to adapt to different throat structures, as long as the overall extension length m of the laryngoscope cannula is approximately equal to h, the rod body and the flexible connecting line assembly provided by the present invention can be adopted. The exposed sections of the rod body and the flexible connecting line can be removably inserted in the channel, and the camera assembly can reach the inner side of the distal end of the blade, so that the trachea and glottis can be clearly exposed during laryngoscope intubation, making laryngoscope intubation smooth and effective.

[0047] Furthermore, considering that the rod body needs to be accommodated in the channel, the extension height c of the channel running through the handle section is limited by the extension length a of the rod body. If the extension height c of the channel running through the handle section is less than the extension length a of the rod body, the rod body cannot be fully extended into the channel due to the blocking effect of the transition section and the blade section, that is, the positioning and matching of the laryngoscope cannula and the rod body cannot be achieved. Therefore, the laryngoscope provided by the present invention also needs to meet the following conditions: the extension height c of the channel running through the handle section is not less than the extension length a of the rod body,

[0048] The present invention provides a buckle structure (21, 311) provided between the inner wall of the handle section and the rod body, through which the rod body and the exposed section of the flexible connecting line can be inserted in the channel in a pull-out manner; a person skilled in the art can adopt the buckle structure in various structural forms; in the present invention, the buckle structure is implemented by the following structure: the inner wall of the handle section 31 forms a slot 311, and the outer wall of the rod body 2 forms an elastic protrusion 21 matching the slot; more specifically, in this embodiment, the outer wall of the rod body forms two opposite spring beads 21, and the inner wall of the handle section forms a slot 311 that is positioned and matched with the two spring beads, so that the doctor can quickly pull out or insert the rod body and the flexible connecting line, and the rod body is firmly positioned in the channel.

[0049] In other embodiments of the present invention, a flared portion 34 is formed at the entrance of the channel; thus, it is convenient for the doctor to quickly insert the rod body into the channel through the flared portion 34, thereby avoiding the situation where the entrance end of the channel and the rod body are roughly similar in size and cannot be quickly inserted into the channel; in addition, a retaining edge 341 is formed at the periphery of the flared portion toward the outside; thus, the retaining edge prevents the doctor's hand from contacting the mounting seat 23 and the display assembly 1 at the upper end of the rod body due to misoperation or slippage, thereby causing cross infection.

[0050] In other embodiments of the present invention, the flexible connecting line includes a connecting wire and a hose wrapping the connecting wire, through which the flexible connecting line can be bent inside the laryngoscope cannula to adapt to laryngoscope cannulas of different specifications.

[0051] In some embodiments of the present invention, the cross-section of the channel running through the handle section is rectangular, which can further prevent the rod body from rotating in the channel.

[0052] Furthermore, in some embodiments, the laryngoscope cannula is an integrally formed transparent tube body, and it can be understood that one end thereof is open and the other end is closed; specifically, the laryngoscope cannula can be made of a hard plastic material.

[0053] The working process of the laryngoscope provided by the present invention is:

[0054] The present invention provides doctors with a rod body and a flexible connecting line, a display assembly and a camera assembly of the same specification, which are components that can be reused multiple times;

[0055] The present invention also provides doctors with laryngoscope cannulas of various specifications (large, medium and small), and the laryngoscope cannulas are disposable products;

[0056] During the operation, the doctor only needs to select the laryngoscope cannula of the corresponding specifications according to the patient's condition, and then directly insert the rod body, flexible connecting line and camera assembly into the laryngoscope cannula of any specification to start the treatment process; this process avoids the need to match the rod body with the laryngoscope cannula specifications, and also avoids the need to adjust the height of the rod body. The operation is quick and convenient, and the medical cost is greatly reduced.

Claims

1. A laryngoscope, characterized in that: The laryngoscope includes: Multiple-use camera and display components; A rod body that can be used multiple times, the rod body having a fixed extension height a, and a display assembly disposed at the top of the rod body; A flexible connecting line that can be used multiple times, the flexible connecting line passes through the rod body and is connected to the display assembly, the flexible connecting line has an embedded section located in the rod body and an exposed section protruding from the distal end of the rod body, the exposed section has a fixed extension length b; the camera assembly is installed at the distal end of the exposed section; A disposable laryngoscope cannula, the laryngoscope cannula comprising a handle section for a doctor to hold, a blade section for inserting into a patient's mouth, and a transition section formed between the handle section and the blade section, the blade section comprising a base extending from the end of the handle section and a tongue depressor located at the distal end of the base; A channel is formed inside the laryngoscope cannula, which passes through the handle section, the transition section and the base, and the channel is used to accommodate the rod body and the exposed section of the flexible connecting line, so that the camera assembly reaches the distal end of the base channel; the distal end of the base is sealed by a transparent material; The laryngoscope meets the following conditions: The extension length h from the proximal end of the rod body to the distal end of the flexible connecting line is approximately equal to the extension length m of the channel from the proximal end to the distal end; The extension height c of the channel running through the handle section is not less than the fixed extension height a of the rod body; By changing the extension length e of the channel through the base, the laryngoscope cannula is constructed into laryngoscope cannula of different specifications, and the laryngoscope cannula of different specifications are suitable for the rod body and the flexible connecting line of the same specification.

2. The laryngoscope according to claim 1, characterized in that: A buckle structure is provided between the handle section and the rod body, through which the rod body and the exposed section of the flexible connecting line can be inserted into the channel in a removable manner.

3. The laryngoscope according to claim 1, characterized in that: The laryngoscope cannula is an integrally formed transparent tube.

4. The laryngoscope according to claim 2, characterized in that: The buckle structure is realized by the following structure: the inner wall of the handle section forms a clamping groove, and the outer wall of the rod body forms an elastic protrusion matching the clamping groove.

5. The laryngoscope according to claim 1, characterized in that: The inlet end of the handle section is a flared portion, and the periphery of the flared portion forms a retaining edge facing outward.

6. The laryngoscope according to claim 1, characterized in that: The exposed section of the flexible connecting line includes a connecting wire and a hose wrapping the connecting wire, through which the flexible connecting line can be bent inside the laryngoscope cannula.

7. The laryngoscope according to claim 1, characterized in that: The cross section of the channel running through the handle section is rectangular.

8. The laryngoscope according to claim 1, characterized in that: The camera assembly includes a camera and a light source arranged adjacent to the camera.

9. A laryngoscope intubation, characterized in that: The laryngoscope cannula comprises a handle section for a doctor to hold, a blade section for inserting into a patient's mouth, and a transition section formed between the handle section and the blade section, wherein the blade section comprises a base extending from the end of the handle section and a tongue depressor located at the distal end of the base; A channel is formed inside the laryngoscope cannula, which passes through the handle section, the transition section and the base of the laryngoscope. The channel is used to accommodate the rod body and the exposed section of the flexible connecting line, so that the camera assembly of the laryngoscope can reach the distal end of the base channel; the distal end of the base is sealed by a transparent material; The extension length m of the channel from the proximal end to the distal end is configured to be approximately equal to the extension length h from the proximal end of the rod body to the distal end of the flexible connecting line; The extension height c of the channel running through the handle section is configured to be no less than the fixed extension height a of the rod body; By changing the extension length e of the channel through the base, the laryngoscope cannula can be constructed into laryngoscope cannulae of different specifications.

10. The laryngoscope cannula according to claim 9, characterized in that: The laryngoscope cannula is an integrally formed transparent tube.

11. The laryngoscope cannula according to claim 9, characterized in that: The inner wall of the handle section forms a clamping groove.

12. The laryngoscope cannula according to claim 9, characterized in that: The inlet end of the handle section is a flared portion, and the periphery of the flared portion forms a retaining edge facing outward.

13. The laryngoscope cannula according to claim 9, characterized in that: The cross section of the channel running through the handle section is rectangular.

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