CN112914490A

CN112914490A - Disposable laryngoscope lens for controlling droplet infection

Info

Publication number: CN112914490A
Application number: CN202110329042.XA
Authority: CN
Inventors: 钟焕晖; 李恒; 钟一凡
Original assignee: Affiliated Nanhua Hospital University Of South China
Current assignee: Affiliated Nanhua Hospital University Of South China
Priority date: 2021-03-27
Filing date: 2021-03-27
Publication date: 2021-06-08

Abstract

The invention discloses a disposable laryngoscope lens for controlling droplet infection, which relates to the field of medical instruments, and adopts the technical scheme that the disposable laryngoscope lens comprises a body, wherein the body comprises a fixed end and an extension piece which extends in an arc shape from the fixed end; a drainage tube respectively communicating the port and the airflow channel is arranged in the body; the port is provided with a pressure control assembly capable of adjusting the negative pressure intensity; the technical effect is that the utility model can absorb the liquid and gas in the pharynx of the patient in multiple directions, so that the oral cavity and the airway of the patient can generate a controllable negative pressure state, thereby effectively reducing the sputum, aerosol and the like in the pharynx of the patient suffering from respiratory infectious diseases from splashing to medical staff, particularly intubators along with the airflow, and effectively controlling the infection of the spray, the aerosol and the like.

Description

Disposable laryngoscope lens for controlling droplet infection

Technical Field

The invention relates to the field of medical instruments, in particular to a disposable laryngoscope lens for controlling droplet infection.

Background

Laryngoscopes are instruments that are used by physicians to open the airway of a patient during an endotracheal intubation procedure, typically used in endotracheal intubation procedures. The trachea cannula is the most common and basic emergency treatment measure in clinical emergency treatment and has an extremely important role in emergency treatment of critical patients. The laryngoscope is the key to the success of the endotracheal intubation, and the direct laryngoscope used conventionally has high operation difficulty and certain damage. In recent years, with the development and innovation of medical endoscope technology, the application of the visible laryngoscope is increasingly wide, and the clinical effect is good. However, the visible laryngoscope can not be disinfected and sterilized repeatedly, and the disposable visible laryngoscope lens is used clinically at present to avoid cross infection among different patients.

For the ordinary patients, the cross infection can be avoided to a great extent by avoiding the medical staff from contacting the sputum and the secretion existing in the pharynx of the patients, but for the patients with respiratory tract infection, fine droplets and aerosol containing germs still exist in the air in the pharynx and the lungs.

At present, a utility model patent with a publication number of CN208942092U named as disposable visual laryngoscope lens and laryngoscope is domestically disclosed, which comprises a lens body connected with a laryngoscope handle and a sputum suction tube for sucking sputum; the lens body is fixedly connected with the sputum suction tube; the front end part of the sputum suction pipe is at least provided with a sputum suction hole; the tail end part of the sputum suction pipe is provided with a negative pressure joint which is communicated with the sputum suction pipe; and the negative pressure joint is provided with a negative pressure control hole penetrating through the negative pressure joint.

The disposable laryngoscope lens can only suck out sputum of the pharynx of a patient, is suitable for common patients, and cannot effectively avoid cross infection caused by splash and aerosol exhaled along with airflow when the disposable laryngoscope lens is used by patients suffering from respiratory infectious diseases.

Disclosure of Invention

The invention aims to provide a disposable laryngoscope lens for controlling droplet infection, which has the advantages that liquid and gas in the pharynx of a patient can be sucked in multiple directions, the oral cavity and the airway of the patient can generate a controllable negative pressure state, sputum and aerosol in the pharynx of the patient suffering from respiratory infectious diseases are effectively reduced to splash to medical staff, particularly intubators along with airflow, and the infection of the droplet, the aerosol and the like is effectively controlled.

The technical purpose of the invention is realized by the following technical scheme:

a disposable laryngoscope lens for controlling droplet infection comprises a body, wherein the body comprises a fixed end and an extension piece which extends from the fixed end in an arc shape, one end of the body is provided with a port which can be externally connected with an aspirator, the other end of the body is detachably connected with the lens, a plurality of negative pressure air holes are uniformly distributed on the surface of the lens, and an airflow channel communicated with the negative pressure air holes is arranged on the interlayer of the side wall of the lens; the body also comprises a drainage tube which is respectively communicated with the port and the airflow channel;

the airflow channel and the drainage tube are respectively provided with an isolating membrane which is matched with the negative pressure air hole and can adsorb droplets; the port is provided with a pressure control assembly capable of adjusting the negative pressure intensity.

By adopting the technical scheme, the pharyngeal portion of the patient can be subjected to multidirectional suction treatment through the negative pressure air holes uniformly distributed on the surface of the lens, so that residual droplets, sputum and the like in the pharyngeal portion of the patient suffering from respiratory infectious diseases are better sucked to the outside through the airflow channel, and the pharyngeal portion is prevented from being in direct contact with medical personnel, so that cross infection is effectively avoided; utilize the barrier film to adsorb the droplet on the barrier film, simultaneously, evenly distributed's negative pressure gas pocket can effectively avoid the too big harm that causes of appeal to patient's pharynx that single gas pocket caused, adjusts the specific conditions of the size of appeal in order to adapt to patient's pharynx through accuse pressure subassembly.

Further setting: the lens is bent in an arc shape and is expanded from one side to form a polygonal column body, negative pressure air holes are formed in each side face of the polygonal column body, and the number of the negative pressure air holes is at least three.

By adopting the technical scheme, the at least three negative pressure air holes are arranged, so that at least one negative pressure air hole is arranged on each side surface of the polygonal column body, and therefore, multidirectional comprehensive attraction can be achieved during attraction, and dispersed substances such as droplets, aerosol and the like can be attracted to the outside; aiming at patients with respiratory infectious diseases, the cross infection caused by direct contact between droplets, aerosol and the like with germs and medical care personnel can be avoided.

Further setting: the side surface of the negative pressure air hole is parallel to the outer side surface of the lens and faces the inner opening of the oral cavity.

Through adopting above-mentioned technical scheme, the negative pressure gas pocket is parallel with lens outside surface, can avoid negative pressure gas pocket and lens outside to form protrudingly and cause the damage to patient's pharyngeal portion, and parallel arrangement can increase the aperture of attraction, promotes the attraction effect.

Further setting: the pressure control assembly comprises a baffle ring arranged in the port, a pressing pipe connected with the baffle ring and extending to the outer side of the port, and a pressing sheet connected with one end of the outer side of the pressing pipe; and the side wall of the port is provided with a pressing channel for the pressing pipe to pass through and move up and down.

By adopting the technical scheme, the baffle ring can directly adjust the inner caliber of the port so as to achieve the purpose of adjusting the attraction in real time, and the pressing pipe penetrates through the pressing channel to be communicated to the outside, so that the convenience of regulation and control of the pressure control assembly is improved.

Further setting: the outer side of the baffle ring is in contact with the inner side of the port, an air bag matched with the baffle ring is arranged in the baffle ring, and the compression or filling degree of the air bag is controlled by pressing the pressing sheet.

Through adopting above-mentioned technical scheme, press the compression or the filling degree of control gasbag through medical personnel, the gasbag is different to the degree of sheltering from of port when different filling degrees to the diameter of adjustment port is in order to adjust the appeal, makes medical personnel can be in real time according to the specific condition quick adjustment appeal of patient.

Further setting: pressing the trunk line including elasticity and pressing the second pipeline that trunk line unilateral intercommunication formed Y type pipeline with elasticity, the one end connection port of trunk line is pressed to elasticity, and the other end is extended to external by the port, and trunk line and second pipeline are pressed to elasticity all can be opened or relation state through pressing in turn.

By adopting the technical scheme, another pressure control mode is provided, and the applicability of the disposable laryngoscope lens is improved.

Further setting: the barrier film is including crisscross isolation layer and the adsorbed layer that sets up, and the isolation layer setting is in the outside of adsorbed layer.

Through adopting above-mentioned technical scheme, the air current circulation is guaranteed to the isolation layer, and the adsorbed layer can be fixed in adsorbing material through droplet, aerosol and other germ-containing's of isolation layer, avoids the germ to run off and causes cross infection

Further setting: the isolation layer is any one of 20gpp non-woven fabrics or 25gpp non-woven fabrics; the adsorption layer is any one adsorption material or a combination of several adsorption materials of microporous activated carbon, melt-blown non-woven fabric and ceramsite.

By adopting the technical scheme, the pore diameter in the non-woven fabric can ensure the air flow circulation, and the adsorbing material can fix the spray, the aerosol and other substances containing pathogenic bacteria.

Further setting: one end of the lens close to the oral cavity is fixedly detachably connected with a camera, and the camera electrically extends to the rear end of the body through an optical fiber; the lens is internally provided with a detachable channel which is communicated with the body and extends to the outside for the optical fiber and the camera to pass through.

Through adopting above-mentioned technical scheme, the piece of making a video recording passes through optic fibre electric connection, can transmit the condition real-time of patient's pharynx that the piece of making a video recording observed, is convenient for observe.

Further setting: the rear end of the body is externally connected with a display screen. The camera comprises a camera probe arranged at the port and an illuminating assembly surrounding the periphery of the camera probe.

Through adopting above-mentioned technical scheme, can be clear see the condition of patient's pharynx through the display screen, reduce trachea cannula's the degree of difficulty. Illumination assembly can increase pharyngeal luminosity to increase camera probe's visuality, the better pharyngeal condition of observation of the medical personnel of being convenient for avoids blind intubate, has promoted the accuracy and the security of intubate technique.

In conclusion, the invention has the following beneficial effects: through the negative pressure air holes uniformly distributed on the surface of the lens, the pharyngeal portion of the patient can be attracted in multiple directions, so that residual droplets, aerosol, sputum and the like in the pharyngeal portion of the patient with the respiratory infectious disease can be better attracted to the outside through the airflow channel, direct contact with medical personnel is avoided, and cross infection is effectively avoided; simultaneously, evenly distributed's negative pressure gas pocket can effectively avoid the too big harm that causes of appeal to patient's pharynx that single gas pocket caused, adjusts the size of appeal in order to adapt to the particular case of patient's pharynx through accuse pressure subassembly.

Drawings

FIG. 1 is a schematic view of the overall structure of a disposable laryngoscope blade for controlling droplet infection;

FIG. 2 is a partial schematic view of the structure of the lens of the disposable laryngoscope blade for controlling droplet infection;

FIG. 3 is a schematic view of a portion of a pressure control assembly according to a first embodiment;

FIG. 4 is a schematic side cross-sectional view of a fixed end of a disposable laryngoscope blade for controlling droplet infection;

FIG. 5 is a schematic view of the structure of the isolation diaphragm in the disposable laryngoscope blade for controlling droplet infection;

FIG. 6 is a schematic view of a portion of a pressure control assembly according to a second embodiment;

in the figure, 1, a body; 2. a fixed end; 3. an extension piece; 4. a port; 5. a lens; 6. negative pressure air holes; 7. an air flow channel; 8. a drainage tube; 9. a pressure control assembly; 10. a retainer ring; 11. pressing a pipe; 12. tabletting; 13. pressing the channel; 14. an air bag; 15. a camera; 16. a camera probe; 17. a lighting assembly; 18. a display screen; 19. a detachable channel; 20. an isolation film; 21. an isolation layer; 22. an adsorption layer; 23. elastically pressing the main pipeline; 24. a second conduit.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

First preferred embodiment:

a disposable laryngoscope lens for controlling droplet infection is shown in figures 1-5 and comprises a body 1, wherein the body 1 comprises a fixed end 2 and an extension piece 3 extending from the fixed end 2 in an arc shape, one end of the body 1 is provided with a port 4 capable of being externally connected with an aspirator, the other end of the body is detachably connected with a lens 5, a plurality of negative pressure air holes 6 are uniformly distributed on the surface of the lens 5, and an airflow channel 7 communicated with the negative pressure air holes 6 is arranged on the interlayer of the side wall of the lens 5; the body 1 also comprises a drainage tube 8 which is respectively communicated with the port 4 and the airflow channel 7;

the airflow channel 7 and the drainage tube 8 are both provided with an isolating membrane 20 which is matched with the negative pressure air hole 6 and can adsorb droplets; and a pressure control assembly 9 capable of adjusting the negative pressure intensity is arranged on the port 4.

The negative pressure air holes 6 uniformly distributed on the surface of the lens 5 can attract the pharynx of the patient in multiple directions, so that residual droplets, aerosol, sputum and the like in the pharynx of the patient suffering from respiratory infectious diseases can be better attracted to the outside through the airflow channel 7, direct contact with medical staff is avoided, and cross infection is effectively avoided; adsorbing the spray on the isolating membrane by using the isolating membrane; simultaneously, evenly distributed's negative pressure gas pocket 6 can effectively avoid the too big harm that causes of appeal to patient's pharynx that single gas pocket caused, adjusts the size of appeal in order to adapt to the particular case of patient's pharynx through accuse pressure subassembly 9.

The barrier film 20 is multilayer structure, including crisscross isolation layer 21 and the adsorbed layer 22 that sets up, isolation layer 21 sets up the outside at adsorbed layer 22, and isolation layer 21 adopts any one of the non-woven fabrics of 20gpp or the non-woven fabrics of 25gpp, the air current circulation can be ensured in the aperture in the non-woven fabrics, can play the effect of ventilating and negative pressure attraction, adsorbed layer 22 then chooses for use micropore active carbon, melt-blown non-woven fabrics, arbitrary one kind adsorption material or the combination of several kinds of adsorption materials in the haydite, adsorbed layer 22 can be with the droplet through isolation layer 21, aerosol and other materials that contain the germ fix in the adsorption material, avoid the germ to run off and cause cross infection.

The lens 5 is bent in an arc shape and is expanded by a polygonal column body on one side, each side face of the polygonal column body is provided with a negative pressure air hole 6, and the number of the negative pressure air holes 6 is at least three. The minimum three negative pressure air holes 6 can ensure that each side surface of the polygonal column body is provided with at least one negative pressure air hole 6, so that multidirectional comprehensive attraction can be achieved during attraction, and dispersed substances such as spray, aerosol and the like can be attracted to the outside; aiming at patients with respiratory infectious diseases, the cross infection caused by direct contact between droplets, aerosol and the like with germs and medical care personnel can be avoided.

The side of the negative pressure air hole 6 is parallel to the outer side surface of the lens 5 and opens to the inside of the oral cavity. Negative pressure gas pocket 6 is parallel with lens 5 outside surface, can avoid negative pressure gas pocket 6 and the lens 5 outside to form protruding and cause the damage to patient's pharyngeal portion, and parallel arrangement can increase the aperture of attracting, promotes the attraction effect.

Simultaneously, the human pharyngeal design of arc angle laminating of lens 5, negative pressure gas pocket 6 homodisperse can enlarge the effect scope of aspirator to the side of lens 5, make negative pressure gas pocket 6 homodisperse in the inboard of pharyngeal, because of negative pressure gas pocket 6 is parallel with the side of lens 5, negative pressure gas pocket 6 can laminate in the pharyngeal side, the aspirator attracts the during operation, negative pressure gas pocket 6 can be evenly soft will be attached to the tiny droplet of patient's pharyngeal that has respiratory infectious disease and attract to the external world, maximum has avoided medical personnel to carry out the trachea cannula to the patient that has respiratory infectious disease because of the cross infection that leaks and cause such as droplet, aerosol when.

The pressure control assembly 9 comprises a baffle ring 10 arranged inside the port 4, a pressing pipe 11 connected with the baffle ring 10 and extending to the outer side of the port 4, and a pressing sheet 12 connected with one end of the outer side of the pressing pipe 11; the side wall of the port 4 is provided with a pressing channel 13 for the pressing pipe 11 to pass through and translate up and down. The baffle ring 10 can directly adjust the inner diameter of the port 4 to achieve the purpose of adjusting the attraction force in real time, and the pressing pipe 11 penetrates through the pressing channel 13 to be communicated to the outside, so that the convenience of regulation and control of the pressure control assembly 9 is improved.

The outer side of the baffle ring 10 is contacted with the inner side of the port 4, the inner part of the baffle ring 10 is provided with an air bag 14 matched with the baffle ring 10, and the compression or filling degree of the air bag 14 is controlled by pressing the pressing sheet 12. The compression or filling degree of the control air bag 14 is pressed by medical staff, the air bag 14 changes the shielding degree of the port 4 by changing the filling degree, and then the diameter of the port 4 is adjusted to adjust the attraction force, so that the attraction force can be quickly adjusted by the medical staff according to the specific condition of a patient in real time.

One end of the lens 5 close to the oral cavity is fixedly and detachably connected with a camera 15, and the camera 15 electrically extends to the rear end of the body 1 through an optical fiber; the lens 5 is internally provided with a detachable channel 19 which is communicated with the body 1 and extends to the outside for the optical fiber and the camera 15 to pass through. The rear end of the body 1 is externally connected with a display screen 18. The pharyngeal condition of the patient can be clearly seen through the display screen 18, and the difficulty of tracheal intubation is reduced.

The camera 15 includes a camera probe 16 disposed at the port 4 and an illumination assembly 17 surrounding the camera probe 16. Illumination assembly 17 can increase pharyngeal luminosity to increase the visuality of probe 16 of making a video recording, the better pharyngeal condition of observation of the medical personnel of being convenient for avoids blind intubate, has promoted the accuracy and the security of intubate technique.

The second preferred embodiment differs from the first preferred embodiment in that: the pressure control assembly 9 is different.

As shown in fig. 6, the pressure control assembly 9 includes an elastic pressing main pipe 23 and a second pipe 24 communicated with one side of the elastic pressing main pipe 23 to form a Y-shaped pipe, one end of the elastic pressing main pipe 23 is connected to the port 4, the other end of the elastic pressing main pipe 23 extends to the outside through the port, and the elastic pressing main pipe 23 and the second pipe 24 can be alternately opened or closed by pressing. The medical staff can adjust the diameter of the port 4 directly by squeezing the port 4 to achieve the purpose of adjusting the attraction force.

The above-mentioned embodiments are merely illustrative and not restrictive, and those skilled in the art can make modifications to the embodiments without inventive contribution as required after reading the present specification, but only protected by the patent laws within the scope of the claims.

Claims

1. A disposable laryngoscope lens for controlling droplet infection comprises a body (1), and is characterized in that: the body (1) comprises a fixed end (2) and an extension piece (3) extending from the fixed end (2) in an arc shape, one end of the body (1) is provided with a port (4) capable of being externally connected with an aspirator, the other end of the body is in transition connection with a lens (5) through the extension piece (3), a plurality of negative pressure air holes (6) are uniformly distributed on the surface of the lens (5), and an airflow channel (7) communicated with the negative pressure air holes (6) is arranged on a side wall interlayer of the lens (5); the body (1) also comprises a drainage tube (8) which is respectively communicated with the port (4) and the airflow channel (7);

the airflow channel (7) and the drainage tube (8) are respectively provided with an isolating membrane (20) which is matched with the negative pressure air hole (6) and can adsorb droplets; the port (4) is provided with a pressure control component (9) capable of adjusting the negative pressure intensity.

2. The disposable laryngoscope blade for controlling droplet infection according to claim 1, wherein: the lens (5) is bent in an arc shape and is expanded from one side to form a polygonal cylinder, negative pressure air holes (6) are formed in each side face of the polygonal cylinder, and the number of the negative pressure air holes (6) is at least three.

3. The disposable laryngoscope blade for controlling droplet infection according to claim 2, wherein: the side surface of the negative pressure air hole (6) is parallel to the outer side surface of the lens (5) and faces the inner opening of the oral cavity.

4. The disposable laryngoscope blade for controlling droplet infection according to claim 1, wherein: the pressure control assembly (9) comprises a baffle ring (10) arranged in the port (4), a pressing pipe (11) connected with the baffle ring (10) and extending to the outer side of the port (4), and a pressing sheet (12) connected with one end of the outer side of the pressing pipe (11); and a pressing channel (13) for a pressing pipe (11) to pass through and move up and down is arranged on the side wall of the port (4).

5. The disposable laryngoscope blade for controlling droplet infection according to claim 4, wherein: the outer side of the baffle ring (10) is in contact with the inner side of the port (4), an air bag (14) matched with the baffle ring (10) is arranged inside the baffle ring (10), and the compression or filling degree of the air bag (14) is controlled by pressing the pressing sheet (12).

6. The disposable laryngoscope blade for controlling droplet infection according to claim 1, wherein: accuse pressure subassembly (9) press second pipeline (24) that trunk line (23) and with elasticity pressed trunk line (23) unilateral intercommunication formation Y type pipeline including elasticity, and the one end connection port (4) of trunk line (23) are pressed to elasticity, and the other end is extended to external by the port, and trunk line (23) and second pipeline (24) are pressed to elasticity all can be opened or relation state through pressing in turn.

7. The disposable laryngoscope blade for controlling droplet infection according to claim 1, wherein: the isolating membrane (20) comprises isolating layers (21) and adsorption layers (22) which are arranged in a staggered mode, and the isolating layers (21) are arranged on the outer sides of the adsorption layers (22).

8. The disposable laryngoscope blade for controlling droplet infection according to claim 6, wherein: the isolation layer (21) is any one of 20gpp non-woven fabric or 25gpp non-woven fabric; the adsorption layer (22) is any one adsorption material or a combination of several adsorption materials of microporous activated carbon, melt-blown non-woven fabric and ceramsite.

9. The disposable laryngoscope blade for controlling droplet infection according to claim 1, wherein: one end of the lens (5) close to the oral cavity is fixedly detachably connected with a camera (15), and the camera (15) electrically extends to the rear end of the body (1) through an optical fiber; the lens (5) is internally provided with a detachable channel (19) which is communicated with the body (1) and extends to the outside for the optical fiber and the camera (15) to pass through.

10. The disposable laryngoscope blade for controlling droplet infection according to claim 8, wherein: the rear end of the body (1) is externally connected with a display screen (18); the camera (15) comprises a camera probe (16) arranged at the port (4) and an illuminating assembly (17) surrounding the camera probe (16).