CN105662326B

CN105662326B - Electronic laryngoscope

Info

Publication number: CN105662326B
Application number: CN201510900133.9A
Authority: CN
Inventors: 请求不公布姓名
Original assignee: Anqing Medical Co Ltd
Current assignee: Anqing Medical Co Ltd
Priority date: 2015-12-08
Filing date: 2015-12-08
Publication date: 2024-06-07
Anticipated expiration: 2035-12-08
Also published as: CN105662326A

Abstract

The invention relates to an electronic laryngoscope, comprising: the device comprises a camera module with a camera, a hollow connecting rod, a handle and a control display module; the front end of the connecting rod is connected with the camera module, the rear end of the connecting rod is connected with the handle, and the rear end of the handle is connected with the control display module; the inner pipe diameter of the hollow pipe is larger than the outer rod diameter of the connecting rod; the connecting device is used for connecting the hollow tube with the camera module and/or the connecting rod; at least one light guiding module comprising a guiding light source and a control device connected to the guiding light source for controlling the guiding light source. The invention has simple structure and convenient use, can guide the insertion process of the electronic laryngoscope, can treat the found focus while checking the nasopharynx of the patient, and reduces the damage to the patient.

Description

Electronic laryngoscope

Technical Field

The invention relates to the field of medical instruments, in particular to an electronic laryngoscope.

Background

The electronic laryngoscope generally consists of a camera, a hollow hard tube (or called a connecting rod), a handle and a control display module; the front end of the hollow hard tube is provided with a camera, the rear end of the hollow hard tube is fixedly connected with the handle, and a lead can be communicated inside the hollow hard tube; the rear part of the handle is connected with a control display module. In the diagnosis and treatment process using the electronic laryngoscope, the electronic laryngoscope is generally matched with a tracheal tube (or called as a tracheal cannula, or tracheal catheter, or insertion tube) for use, namely, a hollow hard tube of the electronic laryngoscope is inserted into the tracheal tube, and the tracheal tube circumferentially coats the hollow hard tube with a camera to extend into the laryngeal cavity of a patient.

In the use process, because the internal environment of a human body is darker, the insertion depth of the electronic laryngoscope is often not easy to control, and therefore, an additional light source is required to be used for guiding, but a certain visual blind spot is necessarily generated in the guiding process, and the situation that the electronic laryngoscope is not inserted in place or is inserted too deeply easily occurs.

In addition, in the diagnosis and treatment process, sputum in the laryngeal cavity of a patient can completely cover the camera of the electronic laryngoscope, so that the examination effect of doctors is affected, and therefore, the sputum needs to be cleared in time. However, the use of electronic laryngoscopes and simultaneous sputum aspiration or laryngeal cavity care of patients, particularly comatose patients, has been a difficulty in healthcare work because the sputum aspiration methods employing conventional auxiliary devices often fail to achieve the purpose of thoroughly removing sputum and oral cavity dirt, and are inconvenient to operate due to the complexity of the auxiliary devices used.

Chinese patent CN203388832 (a hose laryngoscope) discloses an improved sputum suction scheme, in order to suck out sputum, a sputum suction catheter is embedded in the wall of the tracheal tube, the sputum suction catheter extends along the axial direction of the tracheal tube, the rear end of the sputum suction catheter is provided with a sputum aspirator interface, the front end of the sputum suction catheter is provided with a small opening (i.e. "sputum aspiration opening") which is arranged on the inner wall of the front end part of the tracheal tube, and the sputum is sucked out from the sputum aspiration opening through the sputum suction catheter.

Chinese patent CN201168310 (a multifunctional luminous tracheal catheter) also discloses a sputum suction scheme, which is the same as the improvement of CN203388832, and is also that a sputum suction catheter is embedded in the wall of the tracheal tube, and the sputum suction port is also a small port and is arranged on the inner wall of the front end of the tracheal tube.

Both the above inventions have the defect that the position of the sputum suction port, which is far from the camera, cannot be determined because the sputum suction port is arranged in the pipe wall of the tracheal hose, and the sizes of the tracheal hose are different because of the large number of specifications of the tracheal hose. According to the specification of the pharmaceutical industry standard YY0337.1-2002 of the people's republic of China on the tracheal tube, the tracheal tube has nineteen specifications because of different inner diameters and lengths matched with the inner diameters, so that a sputum suction port arranged on the tracheal tube wall is difficult to match or corresponds to the position of a camera on a hollow hard tube, and sputum or dirt around the camera cannot be effectively sucked or cleaned.

Therefore, in the prior art of the current sputum suction scheme related to the electronic laryngoscope, the scheme of directly conducting light rays in the insertion process of the electronic laryngoscope cannot be realized, meanwhile, as the sputum suction ports are far away from or cannot be stably arranged on the periphery of the camera, and the power of the sputum suction device is generally smaller (the great sputum suction force can cause discomfort of a patient or damage to the wall of a laryngeal cavity of the patient), the sputum or dirt covered on the periphery of the camera cannot be effectively and completely sucked; even though the sputum suction port is just positioned at the periphery of the camera, sputum around the camera still cannot be effectively removed because sputum suction is only performed at a certain point on one side of the periphery of the camera.

Disclosure of Invention

The invention aims to provide an electronic laryngoscope with a sputum aspirator, which can more effectively solve the technical problem that a camera is blocked by sputum or dirt in the prior art, overcomes the defects in the prior art, can conduct real-time guiding illumination on the insertion process of the electronic laryngoscope, and can quickly and completely remove objects covering the periphery of the camera.

The invention provides an electronic laryngoscope, which comprises a camera module with a camera, a hollow connecting rod, a handle and a control display module; the front end of the connecting rod is connected with the camera module, the rear end of the connecting rod is connected with the handle, and the rear end of the handle is connected with the control display module; further comprises: the inner pipe diameter of the hollow pipe is larger than the outer rod diameter of the connecting rod; the camera shooting module and the connecting rod are positioned on the inner side of the hollow tube, a sputum suction port is formed between the front end of the hollow tube and the front end of the camera shooting module, and a sputum passage communicated with the sputum suction port is formed between the hollow tube and the connecting rod; the connecting device is used for connecting the hollow tube with the camera module and/or the connecting rod; further comprises: at least one light guiding module comprising a guiding light source and a control device connected to the guiding light source for controlling the guiding light source.

Preferably, the guide light source is provided on a front end surface or an outer peripheral wall of the hollow tube.

Further, the guiding light source is arranged on the handle or in a light source box connected with the handle, and light is conducted to the front end of the hollow tube through an optical fiber.

Preferably, the guiding light source is an LED.

Further, the LED light source module is a red LED or a yellow LED or an orange LED.

Preferably, the connection of the connection device is a detachable connection.

Further, the number of the connecting devices is more than 1, and the connecting devices with the same structure or different structures can be arranged at the same time

Preferably, the connecting device includes a locking structure provided at the distal ends of both the imaging module and the hollow tube, and a sputum suction port is formed between portions of the distal ends of both the imaging module and the hollow tube where the locking structure is not provided.

Further, the clamping structure includes: more than 1 notch which is arranged on the pipe wall of the front end part of the hollow pipe and is downward along the axial direction; protrusions which are arranged on the circumferential direction of the front end part of the camera module, respectively correspond to the shapes of the notches one by one and can be engaged with the notches; the connecting device is used for connecting the hollow tube with the camera module and/or the connecting rod, and is inserted into the notch through the bulge to be clamped and fixed with each other.

Further, the notch is a pair of notches symmetrical about the tube axis of the hollow tube.

Further, after the protrusions are clamped with the notches, the outer peripheral surfaces of the protrusions and the outer peripheral surfaces of the hollow tubes are in continuous smooth transition.

Preferably, the sputum suction port is of an annular structure; the annular structure is that the front end pipe wall of the hollow pipe surrounds the front end of the camera module, the front end pipe wall of the hollow pipe and the camera module keep a certain distance, and an annular space is formed between the front end pipe wall of the hollow pipe and the camera module.

Further, the connecting device further includes: a screw or a removable fixing pin; at least 1 screw hole or pin hole is arranged on the peripheral surface of the rear end part of the camera module or/and the peripheral surface of the connecting rod; the pipe wall of the hollow pipe is provided with a through hole corresponding to the screw hole or the pin hole; the connecting device is used for connecting the hollow tube with the camera module and/or the connecting rod, and can be in threaded connection with the screw hole through the through hole through the screw, or inserted into the pin hole through the through hole through a fixing pin and fixedly connected.

Preferably, the hollow tube and the connecting rod are simultaneously connected into the handle in an extending way; the periphery of the handle or the periphery of the hollow tube, which is positioned outside the oral cavity of a patient when the electronic laryngoscope is used, is provided with a sputum aspirator interface communicated with a sputum channel of the hollow tube, so that sputum inhaled from the sputum aspirator can flow out of the sputum aspirator interface through the sputum channel.

Further, the hollow tube is made of a hard bendable material, and the connecting rod is made of a hard bendable material or a soft material.

Furthermore, a medicine delivery catheter can be arranged in the sputum passage of the hollow tube; the camera is positioned on the central part of the camera module corresponding to the tube shaft of the hollow tube, and the periphery of the camera module, which surrounds the camera, is provided with an illumination module and/or a medicine injection hole communicated with the medicine delivery catheter; the drug injection hole is convenient for injecting the drug injected from the handle, and the drug enters the patient from the drug injection hole through the drug delivery catheter.

Preferably, the electronic laryngoscope of the invention further comprises a sputum aspiration conduit located outside the hollow tube and the connecting rod; the hollow tube at least surrounds the camera module, and a closed connection structure is formed between the rear end of the hollow tube and the rear end of the camera module or the connecting rod, namely a rear sealing end is formed; the back sealing end is provided with a sputum guide hole, and a sputum channel of the hollow tube is communicated with the sputum suction catheter through the sputum guide hole.

Further, the rear sealing end is also provided with a medicine injection hole, and the medicine delivery catheter is communicated with a sputum channel of the hollow tube through the medicine injection hole, or the medicine delivery catheter passes through the medicine injection hole and extends to the periphery of the camera module.

Preferably, the electronic laryngoscope of the invention further comprises a sputum aspiration conduit located outside the hollow tube and the connecting rod; the hollow tube at least surrounds the front end part of the camera module, and the front end of the hollow tube and the front end of the camera module form a closed connection structure, namely a front sealing end; the outer end surface of the front sealing end is provided with an annular sputum guide groove surrounding the camera module, a hole-shaped sputum suction opening is arranged in the bottom of the sputum guide groove, and the sputum suction catheter penetrates through the rear end of the hollow tube and is communicated with the sputum suction opening.

Furthermore, the sputum guide groove and the camera module can be completely bordered, or partially bordered, or not bordered; the annular structure of the sputum guide groove can be closed loop or open loop.

Further, the outer end surface of the front sealing end is also provided with a medicine injection hole, and the medicine delivery catheter passes through the rear end of the hollow tube and is communicated with the medicine injection hole.

According to the electronic laryngoscope, the insertion process can be guided without other lighting devices, and sputum or dirt covered on the periphery of the camera can be rapidly and effectively removed thoroughly; and the product has simple structure, has the functions of shooting, sputum suction, illumination, drug administration and the like, and has more convenient operation mode, thereby being more beneficial to medical staff.

Drawings

The invention will now be described with reference to the accompanying drawings.

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present invention;

FIG. 2 is a cross-sectional view of the embodiment of FIG. 1;

FIG. 3 is a schematic structural view of a connecting device according to an embodiment of the present invention;

FIG. 4 is an exploded view of the embodiment of FIG. 3;

FIG. 5 is a schematic structural view of a connecting device according to an embodiment of the present invention;

FIG. 6 is a cross-sectional view of the embodiment of FIG. 5;

FIG. 7 is a schematic view of a partial structure of an embodiment of the present invention;

FIG. 8 is a front view of the embodiment of FIG. 7 taken in a downward direction from the top of the camera module;

FIG. 9 is a cross-sectional view of the embodiment of FIG. 7;

FIG. 10 is a schematic view of a partial structure of an embodiment of the present invention;

FIG. 11 is a front view of the embodiment of FIG. 10, taken in a downward direction from the top of the camera module;

fig. 12 is a cross-sectional view of the embodiment of fig. 10.

Fig. 13-16 are schematic structural views of various embodiments of the pilot light source 16.

Description of element reference numerals

1. Image pickup module

2. Hollow tube

3. Connecting rod

4. Sputum passage

5. Sputum suction port

6. Handle

7. Protrusions

8. Recess (es)

9. Fixing pin

10. Sputum aspirator interface

11. Lighting module

12. Sputum suction catheter

13. Sputum guide groove

14. Rear sealing end

15. Front sealing end

16 Guide light source

Detailed Description

Other advantages and effects of the present invention will become apparent to those skilled in the art from the following disclosure, which is to be read in light of the specific examples.

Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

Fig. 1 to 4 show an electronic laryngoscope of the invention, which has the basic structure of a traditional electronic laryngoscope, namely, the whole electronic laryngoscope comprises a camera module 1 with a camera, a hollow connecting rod 3, a handle 6 and a control display module (not shown in the figure); the front end of the connecting rod 3 is connected with the camera module 1, the rear end of the connecting rod 3 is connected with the handle 6, and the rear end of the handle 6 is further connected with the control display module; and a wire is arranged in the rod of the connecting rod 3 and used for conducting the camera module 1 and the control display module.

Further, in the present invention, the electronic laryngoscope further comprises: the hollow tube 2, and the inner tube diameter of the hollow tube 2 is larger than the outer rod diameter of the connecting rod 3. Further, the size range of the inner pipe diameter of the hollow pipe 2 is preferably 0.5 mm to 10 mm, and the size range of the pipe wall thickness of the hollow pipe 2 is preferably 0.1 mm to 2 mm; as shown in fig. 2, the camera module 1 and the connecting rod 3 are located at the inner side of the hollow tube 2, a sputum suction port 5 is formed between the front end of the hollow tube 2 and the front end of the camera module 1, and a sputum passage 4 communicating with the sputum suction port 5 is formed between the hollow tube 2 and the connecting rod 3.

Further, the electronic laryngoscope of the invention further comprises a connecting device for connecting the hollow tube 2 with the camera module 1. As shown in fig. 3 and 4, the connecting device has a locking structure provided at the front end portions of both the imaging module 1 and the hollow tube 2, and a sputum suction port 5 is formed between portions of the front end portions of both the imaging module 1 and the hollow tube 2 where the locking structure is not provided.

The clamping structure comprises: a recess 8 provided on the wall of the front end portion of the hollow tube 2 and downward in the axial direction; a projection 7 provided on the circumferential direction of the front end portion of the imaging module 1, corresponding to the shape of the recess 8, and engageable therewith; the connecting device connects the hollow tube 2 and the camera module 1, and is inserted into the notch 8 through the bulge 7 to be clamped and fixed mutually.

In the present invention, the notch 8 is a pair of notches 8 symmetrical about the tube axis of the hollow tube 2; correspondingly, the protrusions 7 are also a pair of protrusions 7 symmetrical about the tube axis of the hollow tube 2, and are provided on both sides of the front end portion of the image pickup module 1. In this engagement structure, as shown in fig. 3, the distal ends of the camera module 1, the projection 7, and the hollow tube 2 form two half-arc-shaped sputum suction ports 5 that are partitioned by the camera module 1 and the projection 7.

Further, in the present invention, the sputum suction port 5 is at the same level as the front end surface of the image pickup module 1, that is, the front end surface of the hollow tube 2 is at the same level as the front end surface of the image pickup module 1. Alternatively, the front end surface of the hollow tube 2 may be higher or lower than the front end surface of the camera module 1.

Further, as shown in fig. 3, after the protrusion 7 is engaged with the recess 8, the outer peripheral surface of the protrusion 7 and the outer peripheral surface of the hollow tube 2 are continuously and smoothly transited.

In the present invention, the front end surface of the protrusion 7 is a plane, on which the lighting module 11 can be embedded. Optionally, a sputum guiding groove (not shown in the figure) may be formed on the front end surface of the protrusion 7 close to the camera module 1, so as to guide the sputum on the protrusion 7 to the sputum sucking port 5.

Further, the number of the notches 8 and the corresponding protrusions 7 may be 1 or more; the shape of the recess 8 is not limited to the rectangle in the present invention, and may be various shapes suitable for engagement; in the case of a plurality of recesses 8, the shape or size of each recess 8 may be the same or different.

Further, the engagement of the recess 8 with the protrusion 7 is not limited to the insertion type in the present invention, but may be an embedded type; namely, the notch 8 is a pit or a pit arranged on the wall of the front end part of the hollow tube 2, and meanwhile, corresponding protrusions 7 are arranged on the circumference of the front end part of the camera module 1, and the protrusions 7 can be embedded into the notch 8; in the case of the snap-in engagement, the positions of the protrusions 7 and the recesses 8 may be reversed, that is, the recesses 8 are recesses provided in the circumferential direction of the front end portion of the image pickup module 1, and the corresponding protrusions 7 are provided on the inner tube wall of the front end portion of the hollow tube 2.

In the present invention, the electronic laryngoscope further comprises at least one light guiding module comprising a guiding light source 16 and control means connected to the guiding light source 16 for controlling the guiding light source 16. The light guide module can guide a user in the process that the electronic laryngoscope enters the throat of a human body, so that the user can insert the electronic laryngoscope into the throat rapidly and accurately, and meanwhile, the user can conveniently judge the depth of the electronic laryngoscope inserted into the throat, and the damage to a patient caused by the over-deep insertion depth or the influence on the treatment effect caused by the over-shallow insertion depth are avoided.

Further, in the present invention, it is preferable that the guide light source 16 is provided on the front end face or the outer peripheral wall of the hollow tube 2 to function as a guide; furthermore, the guiding light source 16 may be disposed on the handle 6 or in the handle 6, or disposed in the light source box, and the light of the guiding light source 16 is conducted to the insertion end of the hollow tube 2 through the optical fiber; furthermore, the light source box can be separated from the electronic laryngoscope, and can also be fixedly connected with the electronic laryngoscope, the optical fiber can be arranged in the hollow tube 2 or the connecting tube 3, and the optical fiber is connected with the guiding light source 16.

Still further, in the present invention, the pilot light source 16 may be connected to the control device in a wired or wireless manner, so that the control device may be operated to turn on and off the pilot light source 16. The control means is preferably provided on the handle 6 and when the guiding light source 16 is connected to the control means in a wireless manner, a wireless receiving module may be provided in the hollow tube 2 or in the handle 6, and preferably in the handle 6, to reduce the tube diameter of the hollow tube 2 and reduce the discomfort to the patient when the electronic laryngoscope enters the body.

Further, in the present invention, the guide light source 16 is preferably an LED, and an LED having a strong penetrating power such as red, yellow or orange is preferably used as the guide light source 16 to obtain a good guide effect.

In the present invention, as shown in fig. 13 to 16, the guide light source 16 may be one LED provided on the insertion end face or the outer peripheral wall of the insertion end of the hollow tube 2, may be a plurality of LEDs uniformly distributed on the outer peripheral wall of the hollow tube 2, or may be an LED light source strip, which is wound around the outer peripheral wall of the insertion end of the hollow tube 2.

In the present invention, as shown in fig. 1 and 2, the hollow tube 2 and the connecting rod 3 are simultaneously extended and connected into the handle 6; the handle 6 is provided with a sputum aspirator port 10 on the periphery thereof, which is communicated with the sputum passage 4 of the hollow tube 2, so that the sputum aspirated from the sputum aspirator port 5 can flow out of the sputum aspirator port 10 through the sputum passage 4. Alternatively, the sputum aspirator port 10 may be provided on the perimeter of the hollow tube 2 outside the patient's mouth when the electronic laryngoscope is in use.

If the material of the hollow tube 2 is a hard bendable material, the material of the connecting rod 3 may be a soft material, and a conventional metal hard material is not necessarily selected.

If the material of the connecting rod 3 is hard material, the hollow tube 2 may be soft material, and the portion of the hollow tube 2 covering the camera module 1 may be hard material.

Furthermore, a drug delivery catheter (not shown) can be arranged in the sputum passage 4 of the hollow tube 2; the camera is positioned on the central part of the hollow tube 2 corresponding to the camera module 1, and the periphery of the camera module 1 surrounding the camera is provided with an illumination module 11 and/or a medicine injection hole (not shown) communicated with a medicine delivery catheter; the drug injection hole facilitates the injection of the drug injected from the handle 6 through the drug delivery catheter into the patient from the drug injection hole. Figures 5 and 6 illustrate an electronic laryngoscope having an alternative suction port shape and attachment means according to an embodiment of the invention. In this embodiment, the sputum suction port 5 is an annular structure, and the front end pipe wall of the hollow pipe 2 surrounds the front end of the camera module 1, and an annular space is formed between the front end pipe wall of the hollow pipe 2 and the camera module 1.

In this embodiment, the connecting device is a detachable fixing pin 9, a pin hole is formed on the peripheral surface of the rear end portion of the camera module 1, a through hole corresponding to the pin hole is formed on the pipe wall of the hollow pipe 2, and the hollow pipe 2 can be fixedly connected with the camera module 1 by inserting the fixing pin 9 through the through hole and into the pin hole.

The number of the fixing pins 9 is 1 or more, and a pair of fixing pins symmetrically arranged with respect to the tube axis of the hollow tube 2 is preferable.

Further, at least 1 pin hole may be provided on the circumferential surface of the connection rod 3, thereby fixedly connecting the hollow tube 2 and the connection rod 3 by a fixing pin.

Furthermore, the connecting device can be more than 1 screw, at least 1 screw hole is arranged on the peripheral surface of the rear end part of the camera module 1 or/and the peripheral surface of the connecting rod 3, through holes corresponding to the screw holes are arranged on the pipe wall of the hollow pipe 2, the hollow pipe 2 can be fixedly connected with the camera module 1 and/or the connecting rod 3 by screwing the screws through the through holes and the screw holes.

Furthermore, the number of the connecting devices is more than 1, and the connecting devices with the same or different structures can be arranged in the same electronic laryngoscope at the same time. For example, a screw type and a fixing pin type connecting device may be provided at the same time, or an engaging structure, a screw type or fixing pin type connecting device, and the like may be provided at the same time, and so on.

It should be noted that the structure of the connection device is not limited to the preferred case of the present embodiment, and other connection structures capable of fixedly connecting the hollow tube 2 with the camera module 1 and/or the connection rod 3, such as a hook connection, a spline connection, a threaded connection, etc., may be included. Fig. 7-9 illustrate another embodiment of an electronic laryngoscope according to the invention wherein the hollow tube does not extend entirely into the handle.

In this embodiment, the electronic laryngoscope further comprises a sputum aspiration catheter 12, which is located outside the hollow tube 2 and the connecting rod 3; the hollow tube 2 surrounds the camera module 1, a closed connection structure is formed between the rear end of the hollow tube 2 and the rear end of the camera module 1, namely a rear sealing end 14 is formed; the rear sealing end 14 is provided with a sputum guide hole, and the sputum passage 4 of the hollow tube 2 is communicated with the sputum suction catheter 12 through the sputum guide hole.

In this embodiment, the handle 6 or the periphery of the hollow tube 2 is not provided with the sputum aspirator interface 10, but a sputum aspirator catheter of the prior art is directly adopted, that is, the rear end of the sputum aspirator catheter is connected with the sputum aspirator interface.

The sputum suction port 5 of the present embodiment is annular in shape, and the structure of the connecting device is a fixing pin.

In this embodiment, the structure and the selection of the connection means may be the same as those of the other embodiments; or just the rear sealing end 14 as a connection means, the structure of which includes, but is not limited to, an interference connection, a threaded connection, or the like. For example, an interference fit, the rear sealing end 14 of the hollow tube 2 is directly sleeved around the rear end of the camera module 1 or on the connecting rod 3. For example, the camera module 1 and the connecting rod 3 may be screwed with each other by providing a screw thread on the peripheral surface of the rear end portion of the camera module 1 or the peripheral surface of the connecting rod 2, providing a certain thickness of the rear sealing end 14 from front to rear, providing a corresponding screw thread on the peripheral surface of the inner side of the rear sealing end 14, and screwing the camera module 1 or the connecting rod 3 with the rear sealing end 14.

Optionally, the rear sealing end 14 is further provided with a drug injection hole (not shown), and a drug delivery catheter (not shown) is communicated with the sputum channel 4 of the hollow tube 2 through the drug injection hole, or passes through the drug injection hole and extends to the periphery of the camera module 1. Fig. 10 to 12 show another embodiment of the electronic laryngoscope with sputum-guiding grooves according to the invention.

In the embodiment, the electronic laryngoscope also comprises a sputum suction catheter 12 which is positioned outside the connecting rod 3, wherein most of the catheter body of the sputum suction catheter 12 is positioned outside the hollow tube 2, and the front end catheter head part of the catheter body penetrates into the hollow tube 2; the hollow tube 2 at least surrounds the front end part of the camera module 1, and the front end of the hollow tube 2 and the front end of the camera module 1 form a closed connection structure, namely form a front sealing end 15; wherein, the outer end surface of the front sealing end 15 is provided with an annular sputum guide groove 13 surrounding the camera module 1, the bottom in the groove of the sputum guide groove 13 is provided with a hole-shaped sputum suction opening 5, and the sputum suction catheter 12 passes through the rear end of the hollow tube 2 and is communicated with the sputum suction opening 5.

Further, the pit depth of the sputum guide groove 13 gradually increases as approaching the vicinity of the sputum suction port 5; the sputum guide groove 13 and the camera module 1 can be completely bordered, or partially bordered, or not bordered, and the embodiment is preferably completely bordered; the annular structure of the sputum-guiding groove 13 may be closed loop or open loop, and the closed loop is preferred in this embodiment.

The connection structure between the hollow tube 2 and the camera module 1 or the connecting rod 3 includes the aforementioned connection device, which can be disposed behind the front sealing end 15. The connection structure in this embodiment is an interference connection, that is, the front sealing end 15 of the hollow tube 2 is directly sleeved on the periphery of the front end of the camera module 1, and no other connection device is provided.

Further, screw connection may be adopted alone, screw threads are provided on the peripheral surface of the front end portion of the camera module 1, the front sealing end 15 has a certain thickness from front to back, corresponding screw threads are provided on the inner side surface of the front sealing end 15, and screw screwing may be performed between the camera module 1 and the front sealing end 15.

Further, a sputum channel 4 is not required between the hollow tube 2 and the camera module 1 or the connecting rod 3, and the sputum suction catheter 12 passes through the rear end of the hollow tube 2 and is directly communicated with the sputum suction port 5.

Further, a drug injection hole (not shown) is further formed on the outer end surface of the front sealing end 15, and a drug delivery catheter (not shown) passes through the rear end of the hollow tube 2 to be communicated with the drug injection hole.

Further, the material of the hollow tube 2 may also be plastic or rubber.

The above embodiments are merely illustrative of the principles of the present invention and its effectiveness, and are not intended to limit the invention. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications and variations of the invention be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.

Claims

1. An electronic laryngoscope, comprising:

The device comprises a camera module with a camera, a hollow connecting rod, a handle and a control display module;

The front end of the connecting rod is connected with the camera module, the rear end of the connecting rod is connected with the handle, and the rear end of the handle is connected with the control display module;

Characterized by further comprising:

The inner pipe diameter of the hollow pipe is larger than the outer rod diameter of the connecting rod;

the camera shooting module and the connecting rod are positioned on the inner side of the hollow tube, a sputum suction port is formed between the front end of the hollow tube and the front end of the camera shooting module, and a sputum passage communicated with the sputum suction port is formed between the hollow tube and the connecting rod;

the connecting device is used for connecting the hollow tube with the camera module and/or the connecting rod;

the light guide module comprises a guide light source and a control device which is connected with the guide light source and used for controlling the guide light source, the control device is arranged in the handle, the guide light source is connected with the control device in a wireless mode through a wireless receiving module, and the wireless receiving module is arranged in the handle.

2. An electronic laryngoscope according to claim 1, wherein the guiding light source is provided on the front face or on the peripheral wall of the hollow tube.

3. An electronic laryngoscope according to claim 1, wherein the guiding light source is provided on/in the handle or in the light source box and transmits light to the front end of the hollow tube by means of an optical fibre.

4. An electronic laryngoscope as claimed in claim 1, wherein the guiding light source is an LED.

5. An electronic laryngoscope according to claim 4, wherein the LED light source module is a red LED or a yellow LED or an orange LED.

6. An electronic laryngoscope as claimed in claim 1, wherein,

The connection of the connecting device is detachable connection.

7. An electronic laryngoscope as claimed in claim 6, wherein,

The connecting device comprises a clamping structure arranged at the front end parts of the camera module and the hollow tube, and a sputum sucking port is formed between the parts of the front end parts of the camera module and the hollow tube, on which the clamping structure is not arranged.

8. An electronic laryngoscope as claimed in claim 7, wherein,

The clamping structure comprises:

more than 1 notch which is arranged on the pipe wall of the front end part of the hollow pipe and is downward along the axial direction;

protrusions which are arranged on the circumferential direction of the front end part of the camera module, respectively correspond to the shapes of the notches one by one and can be engaged with the notches;

The connecting device is used for connecting the hollow tube with the camera module and/or the connecting rod, and is inserted into the notch through the bulge to be clamped and fixed with each other.

9. An electronic laryngoscope as claimed in claim 8, wherein,

The notches are a pair of notches which are symmetrical with the tube axis of the hollow tube.

10. An electronic laryngoscope as claimed in claim 9, wherein,

After the protrusions are clamped with the notches, the outer peripheral surfaces of the protrusions and the outer peripheral surfaces of the hollow tubes are in continuous smooth transition.

11. An electronic laryngoscope as claimed in claim 6, wherein,

The sputum suction port is annular.

12. An electronic laryngoscope as claimed in claim 11, wherein,

The connecting device further includes:

A screw or a removable fixing pin;

At least 1 screw hole or pin hole is arranged on the peripheral surface of the rear end part of the camera module or/and the peripheral surface of the connecting rod;

The pipe wall of the hollow pipe is provided with a through hole corresponding to the screw hole or the pin hole;

The connecting device is used for connecting the hollow tube with the camera module and/or the connecting rod, and can be in threaded connection with the screw hole through the through hole through the screw, or inserted into the pin hole through the through hole through a fixing pin and fixedly connected.

13. An electronic laryngoscope as claimed in any one of claims 1 to 12 wherein,

The hollow tube and the connecting rod are simultaneously connected into the handle in an extending way;

The periphery of the handle or the periphery of the hollow tube, which is positioned outside the oral cavity of a patient when the electronic laryngoscope is used, is provided with a sputum aspirator interface communicated with a sputum channel of the hollow tube, so that sputum inhaled from the sputum aspirator can flow out of the sputum aspirator interface through the sputum channel.

14. An electronic laryngoscope as claimed in claim 13, wherein,

The hollow tube is made of a hard bendable material, and the connecting rod is made of a hard bendable material or a soft material.

15. An electronic laryngoscope as claimed in claim 13, wherein,

A drug delivery catheter can be arranged in the sputum passage of the hollow tube;

The camera is positioned on the central part of the camera module corresponding to the tube shaft of the hollow tube, and the periphery of the camera module, which surrounds the camera, is provided with an illumination module and/or a medicine injection hole communicated with the medicine delivery catheter; the drug injection hole is convenient for injecting the drug injected from the handle, and the drug enters the patient from the drug injection hole through the drug delivery catheter.

16. An electronic laryngoscope as claimed in claim 15, wherein,

The sputum aspirator is positioned outside the hollow tube and the connecting rod;

the hollow tube at least surrounds the camera module, and a closed connection structure is formed between the rear end of the hollow tube and the rear end of the camera module or the connecting rod, namely a rear sealing end is formed;

the back sealing end is provided with a sputum guide hole, and a sputum channel of the hollow tube is communicated with the sputum suction catheter through the sputum guide hole.

17. An electronic laryngoscope as claimed in claim 16, wherein,

And the rear sealing end is also provided with a medicine injection hole, and the medicine delivery catheter is communicated with a sputum passage of the hollow tube through the medicine injection hole, or penetrates through the medicine injection hole and extends to the periphery of the camera module.

18. An electronic laryngoscope as claimed in claim 15, wherein,

The hollow tube at least surrounds the front end part of the camera module, and the front end of the hollow tube and the front end of the camera module form a closed connection structure, namely a front sealing end;

The outer end surface of the front sealing end is provided with an annular sputum guide groove surrounding the camera module, a hole-shaped sputum suction opening is arranged in the bottom of the sputum guide groove, and the sputum suction catheter penetrates through the rear end of the hollow tube and is communicated with the sputum suction opening.

19. An electronic laryngoscope as claimed in claim 18, wherein,

The sputum guide groove and the camera module can be completely bordered, or partially bordered, or not bordered.

20. An electronic laryngoscope as claimed in claim 18, wherein,

And the surface of the outer end of the front sealing end is also provided with a medicine injection hole, and the medicine delivery catheter passes through the rear end of the hollow tube and is communicated with the medicine injection hole.