Split type supporting laryngoscope with smoke suction function

Abstract

This invention relates to the field of medical device technology, specifically a split-type support laryngoscope with a smoke mist function, comprising: a laryngoscope tube and a support plate; the support plate is detachably disposed on the outer periphery of the distal end of the laryngoscope tube, and together with the distal end of the laryngoscope tube, forms a suction cavity that can be connected to a suction device; a laryngoscope port is provided at the center of the laryngoscope tube; the proximal end of the laryngoscope tube is a fixed end, the top of which is fixedly connected to a handle; a suction connector is provided on one side of the fixed end; a suction hole is provided at the center of the suction connector; the suction hole communicates with the suction cavity; an abutment hole and a smoke hole are respectively provided on the tube wall of the corresponding area of ​​the suction cavity on the laryngoscope tube. The split-type support laryngoscope with a smoke mist function provided by this invention, through the sealed design of the separate support plate and laryngoscope tube, facilitates deep cleaning and disinfection of the suction hole and suction cavity after use, avoiding cross-infection.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically a split-type support laryngoscope with a smoke mist function. Background Technology

[0002] Suspension laryngoscope CO2 laser surgery is a minimally invasive surgical procedure that combines a suspension laryngoscope and CO2 laser technology. It is mainly used to treat laryngeal lesions such as vocal cord polyps, papillomas, and early-stage laryngeal cancer. Its core advantages lie in precise removal of lesions, less bleeding, and faster recovery, while preserving normal laryngeal function to the greatest extent possible.

[0003] In clinical applications, CO2 laser resection or vaporization of diseased tissue generates a large amount of smoke. Due to the confined space within the laryngoscope tube, the large amount of smoke obscures the surgical field, significantly affecting the precision of the surgical procedure, increasing the risk of surgical complications, and prolonging the operation time.

[0004] Currently in clinical practice, the suction tube of the suction device is usually inserted into the laryngoscope lumen to remove smoke in real time. However, because other instruments need to be inserted into the laryngoscope lumen at the same time, such as tissue forceps to pull the diseased tissue, the operation space and field of vision of the laryngoscope are already very limited, which often brings many inconveniences to the operation. Summary of the Invention

[0005] The purpose of this invention is to provide a split-type support laryngoscope with a smoke mist function to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A split-type support laryngoscope with smoke mist function includes: a laryngoscope tube and a support plate; the support plate is detachably disposed on the outer periphery of the distal end of the laryngoscope tube and together with the distal end of the laryngoscope tube to form a suction cavity that can be connected to a suction device.

[0008] The laryngoscope tube has a laryngoscope port at its center; the proximal end of the laryngoscope tube is a fixed end, and the top of the fixed end is fixedly connected to the handle; a suction connector is provided on one side of the fixed end; a suction hole is formed at the center of the suction connector; the suction hole communicates with the suction cavity.

[0009] The laryngoscope tube has an abutment hole and a smoke hole respectively on the tube wall in the area corresponding to the suction cavity.

[0010] Preferably, the distal sidewall of the laryngoscope tube is the abutment end, and the abutment hole penetrates the abutment end, connecting the suction cavity to the outside.

[0011] Preferably, the suction cavities are located at the upper and lower ends of the contact end, and the smoke hole penetrates the wall of the laryngoscope tube corresponding to the upper suction cavity, connecting the suction cavity and the laryngoscope hole.

[0012] Preferably, the central axis of the flue is at a certain angle to the central axis of the laryngoscope tube and is inclined towards the proximal end.

[0013] Preferably, there are multiple abutment holes and multiple smoke holes; the multiple smoke holes are arranged in multiple staggered rows along the central axis of the laryngoscope tube.

[0014] Preferably, the outer periphery of the fixing end is circular, and the outer wall is provided with threads; a fixing hole is formed inside the fixing end;

[0015] The proximal end of the support plate is a fixing head, the cross-section of which is the same as that of the fixing hole. A through hole is opened in the center of the fixing head, and the through hole has the same cross-section as that of the laryngoscope hole. The distal end of the support plate consists of two arc-shaped long plates, which are arranged at the upper and lower ends of the fixing head and are fixedly connected at the proximal end by the fixing head. The cross-section of the two arc-shaped long plates corresponds to the cross-section of the laryngoscope tube.

[0016] The internal thread of the fastening cap matches the thread, and a through hole with the same cross-section as the laryngoscope hole is opened at the center of the proximal end of the fastening cap;

[0017] The support plate can slide along the outer wall of the laryngoscope tube through the fixing hole of the fixing end until it abuts against the abutting end; at this time, after rotating the fastening cap so that its internal thread engages with the thread, the relative position of the support plate and the laryngoscope tube is fixed.

[0018] Preferably, the edge of the support plate is provided with a sealing slide strip, and the edges of the laryngoscope tube and the abutment end corresponding to the suction cavity area are provided with sealing grooves that are interference-fitted with the sealing slide strip;

[0019] When the support plate slides through the fixed end along the central axis of the laryngoscope tube to contact the abutting end, the fixed head abuts against the proximal end of the laryngoscope tube located inside the fixed end. The sealing strips on the upper and lower arc-shaped edges of the support plate fill the internal space of the sealing groove on the laryngoscope tube, so that the edge of the suction cavity is completely sealed.

[0020] Preferably, a ring light is also provided on the inner wall of the laryngoscope tube, the ring light surrounding the circumference of the laryngoscope hole and adjacent to the smoke hole in the proximal row.

[0021] Preferably, the handle has an internal cavity, and a control key is fixedly installed at the bottom of the cavity; a control module is installed in the cavity of the handle, the control module includes a power supply module for supplying power to the ring light and a switch control module, and the control module is connected to the control key and the ring light circuit.

[0022] Compared with the prior art, the beneficial effects of the present invention are:

[0023] 1. The present invention provides a split-type support laryngoscope with smoke mist function, which adopts a multi-angle suction channel design. The sewage suction channel and the smoke suction channel are offset at an angle in the suction cavity. The channel blockage is avoided by utilizing the passage characteristics of sewage and smoke. While sharing the same suction space, the suction efficiency of smoke and sewage is improved, and the suction effect is improved.

[0024] 2. The present invention provides a split-type support laryngoscope with smoke mist function. Through the sealed design of separating the support plate and the laryngoscope tube, it is easy to thoroughly clean and disinfect after use, and avoid cross-infection.

[0025] 3. The present invention provides a split-type support laryngoscope with smoke mist function, which is low in cost, suitable for mass production, and has good prospects for industrial transformation. Attached Figure Description

[0026] Figure 1 An external image of a split-type support laryngoscope with a smoke mist function;

[0027] Figure 2 Exploded view of a split-type support laryngoscope with smoke mist function;

[0028] Figure 3 This is an image of the laryngoscope tube.

[0029] Figure 4 This is a longitudinal sectional view of the laryngoscope tube;

[0030] Figure 5 Detailed view of laryngoscope tube A;

[0031] Figure 6 This is a diagram of the support plate's appearance.

[0032] Figure 7 A longitudinal cross-sectional view of the distal end of a split-type support laryngoscope with a smoke mist function;

[0033] Figure 8 This is a transverse cross-section of the proximal end of a split-type support laryngoscope with a smoke mist function.

[0034] In the diagram: 1. Laryngoscope tube; 11. Suction chamber; 12. Abutment end; 13. Abutment hole; 14. Smoke hole; 15. Laryngoscope port; 16. Sealing groove; 2. Fixed end; 21. Thread; 22. Fixed hole; 3. Handle; 31. Control key; 4. Suction connector; 41. Suction hole; 5. Support plate; 51. Sealing strip; 6. Fixed head; 61. Through hole; 7. Fastening cap; 8. Ring light; 9. Control module. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] Furthermore, elements in this invention are referred to as being "fixed to" or "set on" another element, which may be directly on the other element or may also include an intervening element. When an element is considered to be "connected" to another element, it may be directly connected to the other element or may also include an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementations.

[0037] In this invention, the handheld end or operating end of the operator is defined as the proximal end, and the handheld end or operating end farther away from the operator is defined as the distal end.

[0038] Please see Figures 1-8 The present invention provides a split-type support laryngoscope with smoke mist function, including a laryngoscope tube 1 and a support plate 5. The support plate 5 is detachably disposed on the outer periphery of the distal end of the laryngoscope tube 1 and together with the distal end of the laryngoscope tube 1 to form a suction cavity 11 that can be connected to a suction device.

[0039] Specifically, the laryngoscope tube 1 has an elliptical cross-section to adapt to the physiological shape of the larynx. A laryngoscope port 15 is located at the center of the laryngoscope tube 1, which passes through the laryngoscope tube 1, forming a direct passage for the instrument to enter the larynx from outside the patient's body.

[0040] The distal sidewall of the laryngoscope tube 1 forms the abutment end 12, which is an elliptical bevel with a smoothed surface to conform to the physiological shape of the larynx. When the laryngoscope tube 1 is inserted into the patient's larynx, the abutment end 12 abuts against the larynx tissue wall in the surgical area.

[0041] The apex of the major axis of the elliptical inclined surface of the contact end 12 is higher than the height of the outer wall of the laryngoscope tube 1. When the support plate 5 is installed on the laryngoscope tube 1, the support plate 5, the tube wall of the laryngoscope tube 1, and the contact end 12 together form a suction cavity 11. Due to its elliptical cross-sectional shape, the suction cavities 11 are located at the upper and lower ends of the major axis of the contact end 12. Since smoke rises while contaminated liquid may adhere to the tissue wall and slide downwards under gravity, the upper suction cavity 11 is mainly used to absorb smoke and a small amount of contaminated liquid on the upper contact surface, while the lower suction cavity 11 is mainly used to absorb the contaminated liquid stored on the lower contact surface.

[0042] The abutment end 12 is provided with several abutment holes 13, which penetrate the abutment end 12. When the laryngoscope tube 1 with the support plate 5 installed is inserted into the patient's larynx, the abutment end 12 abuts against the patient's larynx wall. The abutment holes 13 connect the suction cavity 11 and the external space inside the patient's larynx. Through the abutment holes 13 and the suction cavity 11, sputum and excess blood and other contaminants on the contact surface between the laryngoscope tube 1 and the tissue wall of the surgical area can be suctioned out, achieving the effect of cleaning the surgical area.

[0043] Multiple smoke holes 14 are formed on the wall of the laryngoscope tube 1 corresponding to the upper suction cavity 11 region. The smoke holes 14 penetrate the wall of the laryngoscope tube 1, connecting the suction cavity 11 and the laryngoscope port 15. The multiple smoke holes 14 are staggered in the distal quarter region of the upper suction cavity 11, forming an independent smoke channel relative to the laryngoscope port 15, without occupying the instrument insertion space of the laryngoscope port 15. The central axis of the smoke hole 14 is at a certain angle to the central axis of the laryngoscope tube 1 and tilts towards the proximal end. The multiple rows of staggered smoke holes 14 along the central axis of the laryngoscope tube 1 and the tilted channels facilitate the rapid absorption of rising smoke into the suction cavity 11; at the same time, because the channels of the smoke holes 14 are at an angle to the central axis of the laryngoscope tube 1, that is, at an angle to the channel of the contact hole 13, it can minimize the risk of dirty liquid entering the suction cavity 11 and flowing downwards, causing blockage of the smoke holes 14. Even if some of the smoke holes 14 are blocked by sewage, the smoke holes 14 at the near end of the rear outlet will not be affected and will be able to draw in smoke normally.

[0044] In this invention, both the upper and lower regions of the abutting end 12 are provided with multiple abutting holes 13. The abutting holes 13 in the upper region of the abutting end 12 are spaced a certain distance from the smoke holes 14 and staggered at a certain angle. That is to say, the angle and position of the suction cavity 11 in the upper and lower regions are different for suction.

[0045] Normally, the waste fluid is liquid or viscous, adhering to solid surfaces and easily converging downwards under gravity. When the laryngoscope is advanced into the larynx, most of the waste fluid adheres to and accumulates at the distal end of the contact end 12, flowing downwards. The upper end of the contact end 12 penetrates deeper into the pharyngeal cavity than the lower end, making it easier for the waste fluid to flow downwards along the inclined surface of the contact end 12 and accumulate, being drawn into the suction cavity 11 in the lower region by the lower contact hole 13. The volume of waste fluid that can be drawn into the upper suction cavity 11 is relatively small, making it difficult to completely block the diagonally staggered smoke holes 14. Smoke is gaseous and tends to converge upwards, easily accumulating in the laryngoscope hole 15 and the pharyngeal lumen. The diagonally arranged smoke holes 14 are distributed at the distal and upper ends of the laryngoscope hole 15, capable of completely drawing smoke deep into the laryngoscope hole 15 and near the contact end 12 into the upper suction cavity 11.

[0046] The present invention utilizes the upper and lower separated suction cavities 11, the abutment holes 13 and smoke holes 14 with their central axes intersecting at an angle, and the arrangement strategy of the abutment holes 13 and smoke holes 14 at different positions, so that the suction function of the upper and lower regions of the suction cavity 11 is targeted at different angles and positions, and at the same time achieves different suction effects for sewage and smoke.

[0047] A ring light 8 is also provided on the inner wall of the laryngoscope tube 1. The ring light 8 surrounds the circumference of the laryngoscope port 15 and is adjacent to the smoke port 14 of the proximal row. The ring light 8 is made of multiple micro LEDs that can be adjusted in groups, and the brightness can be adjusted by turning the corresponding LEDs on and off.

[0048] The proximal end of the laryngoscope tube 1 is a fixed end 2, and the top of the fixed end 2 is fixedly connected to the handle 3. A cavity is provided inside the handle 3, and a control button 31 is fixedly installed at the bottom of the cavity. A control module 9 is installed in the cavity of the handle 3. The control module 9 includes a power supply module for powering the ring light 8 and a switch control module. The control module 9 is electrically connected to the control button 31 and the ring light 8. By touching the control button 31, the ring light 8 can be switched on and off. Repeatedly touching the control button 31 adjusts the brightness of the ring light 8. The ring light 8 has four brightness levels: bright, medium, dim, and off. The handle 3 has a completely enclosed structure for easy installation and fixation, and a charging port is located at its bottom in an area that does not affect installation and fixation.

[0049] The internal circuitry of the laryngoscope tube 1 is insulated to prevent electrical leakage. Because the inside of the laryngeal tube is typically dark, a lighting device needs to be inserted deep into the laryngoscope tube during surgery. This invention saves space for instrument insertion inside the laryngoscope port 15 by placing a ring light 8 near the rear end of the smoke port 14, providing effective illumination relatively close to the surgical area while effectively avoiding the influence of smoke on the lighting.

[0050] The outer circumference of the fixed end 2 is circular, and the outer wall is provided with threads 21; a fixing hole 22 is opened inside the fixed end 2. The internal threads of the fastening cover 7 match the threads 21, and a through hole with the same cross-section as the laryngoscope hole 15 is opened at the center of the proximal end of the fastening cover 7. The support plate 5 can slide along the outer wall of the laryngoscope tube 1 through the fixing hole 22 of the fixed end 2 until it abuts against the abutting end 12. At this time, the fastening cover 7 is rotated so that its internal threads engage with the threads 21, and the relative position of the support plate 5 and the laryngoscope tube 1 is fixed.

[0051] It should be noted that in other embodiments of the present invention, the support plate 5 and the laryngoscope tube 1 can also be detachably separated by a snap-fit ​​method or a connecting post method.

[0052] Specifically, the near end of the support plate 5 is a fixing head 6. The cross-section of the fixing head 6 is the same as that of the fixing hole 22. A through hole 61 is opened in the center of the fixing head 6. The through hole 61 is the same as the cross-section of the laryngoscope hole 15.

[0053] The distal end of the support plate 5 consists of two arc-shaped long plates, positioned at the upper and lower ends of the fixing head 6 and fixedly connected proximally via the fixing head 6. The cross-section enclosed by the two arc-shaped long plates corresponds to the cross-section of the laryngoscope tube 1, and the distal cross-section of the arc-shaped long plates corresponds to the abutment end 12. A sealing strip 51 is provided along the edge of the support plate 5, and sealing grooves 16, which are interference-fitted with the sealing strip 51, are provided along the corresponding edges of the laryngoscope tube 1 and the abutment end 12 in the suction cavity 11 region.

[0054] When the support plate 5 slides through the fixed end 2 along the central axis of the laryngoscope tube 1 to contact the abutting end 12, the fixed head 6 abuts against the proximal end of the laryngoscope tube 1 located inside the fixed end 2. The sealing strips 51 of the upper and lower arc-shaped edges of the support plate 5 fill the internal space of the sealing groove 16 on the laryngoscope tube 1, so that the edge of the suction cavity 11 is completely sealed.

[0055] A suction connector 4 is provided on one side of the fixed end 2. A suction hole 41 is opened in the center of the suction connector 4. The suction cavities 11 at the upper and lower ends are connected to the inner side of the fixed end 2 corresponding to the suction hole 41, and are also connected to the suction hole 41. After the suction connector 4 is connected to the working end of the suction device, a negative pressure can be formed inside the sealed suction cavity 11 through the suction hole 41, thereby suctioning and removing the sewage and smoke through the abutment hole 13 and the smoke hole 14 respectively.

[0056] The separate design of the support plate 5 and the laryngoscope tube 1 facilitates cleaning and disinfection of the suction cavity 11, preventing blockage of the passageway due to long-term use and meeting the hygiene and disinfection requirements of medical devices. The sealing strip 51 and sealing groove 16 at the edges of the support plate 5 and the laryngoscope tube 1 can be made of medical-grade silicone material with a certain degree of elasticity to meet the sealing requirements.

[0057] Existing medical-grade silicone materials have good biocompatibility, are non-irritating and non-toxic to the human body, have good flexibility, low compression set, and can withstand multiple cycles of sterilization such as high-pressure steam sterilization (e.g., 121℃-134℃) and ethylene oxide sterilization; they also have good chemical stability and are resistant to corrosion from body fluids, blood, alcohol, and common disinfectants.

[0058] This invention provides a split-type support laryngoscope with smoke extraction function. It employs a separate tube wall structure to form a suction cavity relatively independent of the laryngoscope tube, integrating illumination, smoke extraction, and suction of contaminated liquid. This avoids excessive space occupied by other instruments within the laryngoscope tube. The invention utilizes a multi-row, staggered, inclined flue design to minimize the risk of contaminated liquid entering the suction cavity and blocking the flues. Even if individual flues become clogged, it will not affect the overall smoke extraction function, improving smoke extraction efficiency and effectiveness. This invention has a simple structure, is easy to operate, has controllable cost, is highly practical, and has significant potential for industrial-scale production.

[0059] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0060] 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 split-type support laryngoscope with smoke mist function, characterized in that, include: Laryngoscope tube (1) and support plate (5); the support plate (5) is detachably disposed on the outer periphery of the distal end of the laryngoscope tube (1) and surrounds the distal end of the laryngoscope tube (1) to form a suction cavity (11) that can be connected to a suction device. The laryngoscope tube (1) has a laryngoscope hole (15) at its center; the proximal end of the laryngoscope tube (1) is a fixed end (2), and the top of the fixed end (2) is fixedly connected to the handle (3); a suction connector (4) is provided on one side of the fixed end (2); a suction hole (41) is opened in the center of the suction connector (4); the suction hole (41) is connected to the suction cavity (11). The laryngoscope tube (1) is provided with an abutment hole (13) and a smoke hole (14) on the tube wall corresponding to the suction cavity (11).

2. The laryngoscope according to claim 1, characterized in that, The distal sidewall of the laryngoscope tube (1) is the abutment end (12), and the abutment hole (13) penetrates the abutment end (12) to connect the suction cavity (11) with the outside.

3. The laryngoscope according to claim 2, characterized in that, The suction cavities (11) are located at the upper and lower ends of the abutment end (12), and the smoke hole (14) penetrates the wall of the laryngoscope tube (1) corresponding to the upper suction cavity (11), connecting the suction cavity (11) and the laryngoscope hole (15).

4. The laryngoscope according to claim 3, characterized in that, The central axis of the flue (14) is at a certain angle to the central axis of the laryngoscope tube (1) and is inclined towards the proximal end.

5. The laryngoscope according to claim 4, characterized in that, There are multiple abutment holes (13) and multiple smoke holes (14); the multiple smoke holes (14) are arranged in multiple staggered rows along the central axis of the laryngoscope tube (1).

6. The laryngoscope according to claim 5, characterized in that, The outer periphery of the fixed end (2) is circular, and the outer wall is provided with threads (21); a fixing hole (22) is opened inside the fixed end (2). The proximal end of the support plate (5) is a fixing head (6), the cross-section of which is the same as that of the fixing hole (22), and a through hole (61) is opened in the center of the fixing head (6), the through hole (61) being the same as the cross-section of the laryngoscope hole (15); the distal end of the support plate (5) is a structure of two arc-shaped long plates, the two arc-shaped long plates being arranged at the upper and lower ends of the fixing head (6) and fixedly connected at the proximal end through the fixing head (6); the cross-section of the two arc-shaped long plates is corresponding to the cross-section of the laryngoscope tube (1); The internal thread of the fastening cap (7) matches the thread (21), and a through hole with the same cross-section as the laryngoscope hole (15) is opened at the proximal center of the fastening cap (7); The support plate (5) can slide along the outer wall of the laryngoscope tube (1) through the fixing hole (22) of the fixing end (2) until it abuts against the contact end (12); at this time, the fastening cover (7) is rotated so that its internal thread engages with the thread (21), and the relative position of the support plate (5) and the laryngoscope tube (1) is fixed.

7. The laryngoscope according to claim 6, characterized in that, The edge of the support plate (5) is provided with a sealing slide (51), and the edges of the laryngoscope tube (1) and the abutment end (12) corresponding to the suction cavity (11) area are provided with a sealing groove (16) that is interference-fitted with the sealing slide (51). When the support plate (5) slides through the fixed end (2) along the central axis of the laryngoscope tube (1) to contact the abutting end (12), the fixed head (6) abuts against the proximal end of the laryngoscope tube (1) located inside the fixed end (2), and the sealing strips (51) on the upper and lower arc-shaped edges of the support plate (5) fill the internal space of the sealing groove (16) on the laryngoscope tube (1), so that the edge of the suction cavity (11) is completely sealed.

8. The laryngoscope according to claim 1, characterized in that, A ring light (8) is also provided on the inner wall of the laryngoscope tube (1). The ring light (8) surrounds the circumference of the laryngoscope hole (15) and is adjacent to the smoke hole (14) in the proximal row.

9. The supporting laryngoscope according to claim 8, characterized in that, The handle (3) has an internal cavity, and a control key (31) is fixedly installed at the bottom of the cavity. A control module (9) is installed in the cavity of the handle (3). The control module (9) includes a power supply module for supplying power to the ring light (8) and a switch control module. The control module (9) is electrically connected to the control key (31) and the ring light (8).

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