Novel visible double-lumen bronchial cannula

Abstract

The novel visual double-lumen bronchial cannula comprises a cannula body, a camera mounting channel is arranged in the cannula body in the length direction of the cannula body, a lens mounting tube is arranged in the camera mounting channel, and a camera is arranged at the front end of the lens mounting tube; two air bags are axially arranged at the front end of the cannula body, an image acquisition window directly communicated with the camera mounting channel is arranged on the cannula body, and the image acquisition window is located between the two air bags; an inclined groove is formed in the front side wall of the image acquisition window in the length direction of the cannula body; one end, close to the image acquisition window, of the bottom surface of the chute is provided with a water outlet communicated with the camera mounting channel, and the bottom surface of the chute is provided with a flow guide assembly for guiding water flow sprayed from the water outlet to the image acquisition window; in the using process, normal saline can be sprayed to the lens of the camera for cleaning through the cooperation of the water outlet and the flow guide assembly, and the definition of a shot picture can be guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument technical field, especially a novel visual double cavity bronchial cannula. BACKGROUND

[0002] In clinical anesthesia and critical patient treatment, left and right side one-lung ventilation (OLV) is one of the commonly used airway management techniques, and is a basic skill that medical staff must master, plays a vital role in ensuring the smooth implementation of thoracic surgery, improving perioperative safety, promoting postoperative rapid recovery, and saving the lives of critically ill patients and reducing mortality.

[0003] With the development of medical technology, visual tracheal intubation has been applied to the process of surgical anesthesia, which has greatly helped to ensure airway safety. However, for patients who need to implement OLV, double-lumen bronchial tube (DLBT, Double-Lumen Bronchial Tube) is the most commonly used lung isolation tool, which is a special type of tracheal tube used in thoracic surgery and OLV. This DLV allows surgeons to perform surgical operations on one side of the lung while maintaining ventilation on the other side, thereby ensuring the ventilation safety of patients during the entire surgical procedure. However, the main problem of applying DLBT to implement one-lung ventilation is the defect of needing to use a flexible bronchoscope to repeatedly position. In view of this problem, in recent years, visible double-lumen bronchial tube (VDLBT, Visible Double-Lumen Bronchial Tube) has emerged, which aims to continuously observe the position of the distal end of VDLBT in the lower airway through the front-mounted camera, and guide the clinician to adjust the VDLBT to be in the correct position in the lower airway. However, during the operation, the camera located at the front end of the VDLBT can be covered by patient secretions, sputum or airway condensate, making the camera image unclear, or even completely unable to obtain imaging. Most importantly, the camera of the existing VDLBT is often installed on one side of the front end of the cannula body, not only affecting its obtaining of complete lower airway images, but also the camera imaging being easily hindered by endotracheal wall secretions. Therefore, it is necessary to design a new VDLBT to well solve the above problems. SUMMARY

[0004] The utility model aims at the prior art's insufficient, provides a novel visual double cavity bronchial cannula, this novel visual double cavity bronchonal cannula can be good to solve the above -mentioned problem.

[0005] To achieve the above requirements, the technical scheme adopted by the utility model to solve its technical problems is:

[0006] A new visual double-lumen endobronchial cannula is provided, comprising a cannula body, wherein a camera mounting channel is provided in the cannula body along its length, a lens mounting tube is provided in the camera mounting channel, and a camera is provided at the front end of the camera mounting tube; two air bags are axially provided at the front end of the cannula body, and an image acquisition window directly connected to the camera mounting channel is provided on the cannula body, and the image acquisition window is located between the two air bags and on the convex side of the above-mentioned cannula body; an inclined groove is provided on the front side wall of the image acquisition window along the length direction of the cannula body; a water outlet connected to the camera mounting channel is provided on the bottom surface of the inclined groove near one end of the image acquisition window, and a flow guide component is provided on the bottom surface of the inclined groove for guiding the water sprayed from the water outlet to the image acquisition window.

[0007] The novel visual double-lumen endobronchial tube described in the present invention has a wiring pipe and a water outlet pipe arranged side by side in the camera installation pipe, and a connecting pipe is provided on the front end side wall of the camera installation pipe corresponding to the water outlet.

[0008] The new visual double-lumen endobronchial intubation described in the present invention has a diameter of the lens mounting tube that is smaller than a diameter of the camera mounting channel, and a positioning protrusion is provided on the inner wall of the image acquisition window. When assembled in place, the positioning protrusion is tightly pressed against the outer wall of the camera.

[0009] The novel visual double-lumen endobronchial cannula described in the present invention is characterized in that a plurality of positioning protrusions are provided and are evenly arranged along the circumferential direction of the image acquisition window.

[0010] The novel visual double-lumen endobronchial cannula described in the present invention is characterized in that the flow guide component is detachably connected to the cannula body.

[0011] The new visual double-lumen endobronchial cannula described in the present invention, wherein the diversion component includes a soft rubber cover plate covering the outside of the water outlet, a snap strip provided on the back of the soft rubber cover plate, and a card slot provided on the bottom surface of the inclined groove and adapted to the snap strip; the snap strip is arranged horizontally, and the soft rubber cover plate and the snap strip are injection molded as one piece; when assembled in place, the snap strip is pressed against the inner wall of the card slot.

[0012] The novel visual double-lumen endobronchial tube described in the present invention has a buckle strip whose width gradually increases in a direction away from the soft rubber cover.

[0013] The novel visual double-lumen endobronchial tube described in the utility model is characterized in that an extension portion is provided at the upper end of the soft rubber cover.

[0014] The utility model discloses beneficial effect lies in: if the patient secretion, body fluid or condensed gas is attached on the camera lens in the use process, through setting up the water pipe in the camera installation channel and the water outlet communication and injects the physiological saline of clean, then through the cooperation of the flow guide component can spray the sterile physiological saline to the front end of camera and clean, and then can guarantee the definition of the shot picture, and the observation and operation of doctor are facilitated, and simultaneously distinguish from other bronchial cannula, the camera of this cannula is arranged at the convex side of the central main air pipe, and the visual field blind area that the visual field is blocked by the pipe body is smaller, and the position of cannula is easier and more comprehensive in the operation continuous monitoring. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the utility model will be further described below in combination with the drawings and embodiments, and the drawings in the following description are only partial embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained without creative labor on the premise of these drawings:

[0016] Figure 1 It is the overall structural drawing of the utility model novel visual double cavity bronchial cannula.

[0017] Figure 2 It is the structure drawing of the utility model novel visual double cavity bronchal cannula.

[0018] Figure 3 It is the structure drawing of the camera and lens mounting pipe of the utility model novel visual double cavity bronchial cannula.

[0019] Figure 4 It is the flow guide component structure drawing of the utility model novel visual double cavity bronchial cannula.

[0020] Figure 5 It is the partial structure enlarged view of Figure 2 .

[0021] Figure 6 It is the cross section view of the lens mounting pipe of the utility model novel visual double cavity bronchial cannula. DETAILED DESCRIPTION

[0022] The terms "first", "second", "third", and "fourth" and the like in the description and claims of the present application and in the accompanying drawings are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. The terms "include", "have", and "contain" and any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, product, or apparatus that comprises a list of steps or units are not necessarily limited to the listed steps or units, but can optionally include additional steps or units not expressly listed or inherent to such process, method, system, product, or apparatus.

[0023] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present invention. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute a separate or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0024] "Multiple" refers to two or more. "And / or" describes the relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can mean: A exists alone, A and B exist simultaneously, or B exists alone. The character " / " generally indicates that the associated objects are in an "or" relationship.

[0025] Moreover, the terms "up, down, left, right, upper end, lower end, longitudinal" and the like indicating directions are all based on the posture and position of the device or apparatus described in this solution during normal use.

[0026] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the following will be described clearly and completely in conjunction with the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] The novel visual double-lumen endobronchial tube of the preferred embodiment of the present utility model is as follows Figures 1-6 As shown, the cannula body 10 includes an arcuate cannula body 10, the cavity channel of which directly reaches the front end of the camera for cleaning the camera. Furthermore, a camera mounting channel 20 is provided along the length of the cannula body 10, which is separated from the inner cavity channel. A lens mounting tube 30 is provided in the camera mounting channel 20, and a camera 40 is provided at the front end of the lens mounting tube 30. The camera 40 can be directly pulled out for installation or removal. Two air bags 50 are axially provided at the front end of the cannula body 10. The two air bags 50 are supplied with air through another air supply channel on the inner wall of the cannula body 10, which facilitates the separation of the trachea and bronchi during insertion, facilitating the operation of the surgeon.

[0028] Further, the intubation tube body 10 is provided with an image acquisition window 60 in direct communication with the camera mounting channel 20, the image acquisition window 60 is located between the two airbags 50 and on the side wall of the intubation tube body away from the bending direction, that is, on the convex side, so that more positions of the trachea can be observed when the doctor operates; the front side wall of the image acquisition window 60 is provided with an inclined groove 70 along the length direction of the intubation tube body 10, the depth of the rear end of the inclined groove 70 is consistent with the depth of the image acquisition window 60, and the depth of the front end gradually decreases and is flush with the side wall of the intubation tube body 10; the bottom surface of the inclined groove 70 is provided with a water outlet 80 in communication with the camera mounting channel 20 near one end of the image acquisition window 60, and the bottom surface of the inclined groove 70 is provided with a flow guide assembly 90 for guiding the water flow ejected from the water outlet 80 to the image acquisition window 60; during use, if airway secretions, patient body fluids or condensed gas adhere to the lens of the camera 40, by setting a water pipe in the mounting channel in communication with the water outlet 80 and injecting clean physiological saline, the physiological saline can be sprayed onto the lens of the camera 40 for cleaning through the cooperation of the flow guide assembly 90, thereby ensuring the clarity of the shooting picture and facilitating the observation and adjustment of the lower airway and the intubation position by the clinician; at the same time, unlike other double-lumen bronchial intubation tubes, the camera of the intubation tube is arranged on the convex side of the central main ventilation tube, and the visual field blind area formed by the tube body is smaller, and the position of the intubation tube is easier to monitor during the operation.

[0029] In the embodiment, the lens mounting tube 30 is provided with a wire tube 31 and a water outlet tube 32 side by side to realize water and electricity isolation; the front end side wall of the lens mounting tube 30 is provided with a connecting pipe 321 corresponding to the water outlet 80, the connecting pipe connects the water outlet and the water outlet tube 32, so as to accurately inject the cleaning liquid into the water outlet 80 for spraying, during assembly, the lens mounting tube is directly inserted into the camera mounting channel, after installation, the connecting pipe automatically returns to the original position and is inserted into the water outlet, it needs to be further explained that the length of the connecting pipe cannot be too long, it only needs to guide the water in the water outlet tube into the water outlet, the specific length can be determined according to the actual installation situation, which will not be described here; further, the diameter of the lens mounting tube 30 is smaller than the diameter of the camera mounting channel 20, the inner wall of the image acquisition window 60 is provided with a positioning protrusion 100, when assembled in place, the positioning protrusion 100 abuts tightly with the outer side wall of the camera 40, the camera 40 and the inner wall of the camera mounting channel 20 are separated by the positioning protrusion 100, forming a channel for the backflow of cleaning liquid, so as to facilitate the doctor to timely extract the waste liquid from the patient's body after cleaning.

[0030] In the embodiment, the positioning protrusion 100 is provided with a plurality of and is uniformly arranged along the circumferential direction of the image acquisition window 60, so that the waste liquid can flow back in the four directions around the camera 40, ensuring the efficiency of recovery.

[0031] In the embodiment, the flow guide assembly 90 is detachably connected with the cannula body 10 to facilitate replacement or disassembly for cleaning and disinfection; further, the flow guide assembly 90 comprises a soft rubber cover plate 91 arranged outside the water outlet 80, a buckle strip 92 arranged on the back of the soft rubber cover plate 91, and a clamping groove 93 arranged on the bottom surface of the chute 70 and adapted to the buckle strip 92; the buckle strip 92 is arranged transversely, and the soft rubber cover plate 91 is integrally injection molded with the buckle strip 92; when assembled in place, the buckle strip 92 is tightly abutted against the inner wall of the clamping groove 93, and when water flows out of the water outlet 80, the soft rubber cover plate 91 can be opened low, and by controlling the size of the water flow, the soft rubber cover plate 91 can be opened to a suitable angular position, so that the water flow flows along the side wall and sprays onto the lens of the camera 40 for cleaning, and the waste liquid after cleaning can be quickly discharged through the gap around the camera 40.

[0032] In the embodiment, the width of the buckle strip 92 gradually increases in the direction away from the soft rubber cover plate 91, so as to tightly clamp the buckle strip 92 inside the clamping groove 93 and prevent the soft rubber cover plate 91 from easily falling off.

[0033] In the embodiment, the upper end of the soft rubber cover plate 91 is provided with an extension 110 to facilitate pinching and removing or installing the soft rubber cover plate 91 by fingers.

[0034] It should be understood that those skilled in the art can make improvements or changes according to the above description, and all these improvements and changes shall fall within the protection scope of the appended claims of the utility model.

Claims

1. A novel visual double lumen bronchial tube, characterized in that, The utility model provides an arc-shaped cannula body, a camera mounting channel is arranged in the cannula body along the length direction, a lens mounting tube is arranged in the camera mounting channel, a camera is arranged at the front end of the lens mounting tube, two air bags are arranged at the front end of the cannula body in the axial direction, an image acquisition window is arranged on the cannula body and directly communicated with the camera mounting channel, the image acquisition window is located between the two air bags and on the convex side of the cannula body, an inclined groove is arranged on the front side wall of the image acquisition window along the length direction of the cannula body, a water outlet is arranged on the bottom surface of the inclined groove and close to one end of the image acquisition window and communicated with the camera mounting channel, a flow guide assembly is arranged on the bottom surface of the inclined groove and guides the water flow ejected from the water outlet to the image acquisition window.

2. The novel visual double lumen bronchial tube as claimed in claim 1, wherein, A wire tube and a water outlet tube are arranged side by side in the lens mounting tube, and a connecting tube is arranged on the front end side wall of the lens mounting tube and corresponds to the water outlet.

3. The novel visual double lumen bronchial tube according to claim 2, wherein, The diameter of the lens mounting tube is smaller than the diameter of the camera mounting channel, a positioning protrusion is arranged on the inner wall of the image acquisition window, and the positioning protrusion is tightly abutted against the outer side wall of the camera when assembled in place.

4. The novel visual double lumen bronchial tube according to claim 3, wherein, The positioning protrusion is arranged in multiple and uniformly arranged along the circumferential direction of the image acquisition window.

5. The novel visual double lumen bronchial tube according to claim 1, wherein, The flow guide assembly is detachably connected with the cannula body.

6. The novel visual double lumen bronchial tube according to claim 5, wherein, The flow guide assembly comprises a soft rubber cover plate arranged outside the water outlet, a buckle strip arranged on the back surface of the soft rubber cover plate, and a buckle groove arranged on the bottom surface of the inclined groove and matched with the buckle strip, the buckle strip is arranged transversely, the soft rubber cover plate and the buckle strip are integrally injection molded, and the buckle strip is tightly abutted against the inner wall of the buckle groove when assembled in place.

7. The novel visual double lumen bronchial tube according to claim 6, wherein The width of the buckle strip gradually increases in the direction away from the soft rubber cover plate.

8. The novel visual double lumen bronchial tube according to claim 6, wherein, An extension is arranged on the upper end of the soft rubber cover plate.

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