CN220898667U

CN220898667U - Self-expanding laryngoscope

Info

Publication number: CN220898667U
Application number: CN202321022412.6U
Authority: CN
Inventors: 宋金超; 韩昌龙; 陈海燕; 张平; 钟娜
Original assignee: SHANGHAI YANGPU SHIDONG HOSPITAL
Current assignee: SHANGHAI YANGPU SHIDONG HOSPITAL
Priority date: 2023-04-28
Filing date: 2023-04-28
Publication date: 2024-05-07
Anticipated expiration: 2033-04-28

Abstract

The utility model provides a self-expanding laryngoscope, and relates to the technical field of medical appliances. Comprising the following steps: a flexible tube, a light and shadow device, and a dilator; the dilator comprises: balloon, inflatable member and airway; the flexible tube is inserted into the oral cavity, and the light shadow equipment observes the environment in the oral cavity, so that the flexible tube can be conveniently advanced; inserting a flexible tube into the closed epiglottis by a light shadow device and leaving the balloon in place in the epiglottis; the inflatable part is controlled to inflate the balloon, the balloon expands to prop open the epiglottis, a first guide groove is formed between the fan-shaped annular balloon and the flexible tube, medical staff can pass the tracheal catheter through the epiglottis along the first guide groove and insert the tracheal catheter, at the moment, the inflatable part is controlled to deflate the balloon, the flexible tube is pulled out of the oral cavity of a patient after the balloon is contracted, and the tracheal catheter is kept motionless in the process of being pulled out of the flexible tube. The dilator can dilate the throat of a patient, is convenient for the tracheal catheter to pass through the epiglottis and be inserted into the trachea, and has simple operation, convenience and practicability.

Description

Self-expanding laryngoscope

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a self-expanding laryngoscope.

Background

In the prior art, a laryngoscope is generally used for observing the throat condition of a patient, then an endotracheal tube is moved to the throat and inserted into the trachea, and then the laryngoscope is drawn out of the oral cavity of the patient. However, the epiglottis of some patients is relatively closed, and when the laryngoscope section is inserted into the epiglottis, the gap between the laryngoscope and the epiglottis is small, resulting in a subsequent endotracheal tube that is not easily inserted through the epiglottis into the trachea.

Accordingly, it is highly desirable to provide a laryngoscope that can dilate a patient's throat to facilitate subsequent endotracheal tube insertion into the trachea.

Disclosure of utility model

The utility model aims to provide a self-expanding laryngoscope, which solves the technical problem that in the prior art, the gap between the laryngoscope and the epiglottis is smaller, so that an endotracheal tube is not easy to pass through the epiglottis and be inserted into a trachea _.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

The utility model provides a self-expanding laryngoscope, comprising: a flexible tube; a light shadow device disposed on the flexible tube and configured to capture images of the throat; a dilator for dilating a throat of a patient; the dilator comprises: the balloon is sleeved on the outer side wall of the flexible pipe; an inflation member for inflating and deflating the balloon; the two ends of the air duct are respectively communicated with the saccule and the inflatable piece; the balloon is in a fan-shaped ring shape, and a cavity between the fan-shaped notch of the balloon and the outer side wall of the flexible tube is a first guide groove.

Preferably, an annular mounting groove is formed in the outer side of the flexible pipe, and a first guide groove is formed between the fan-shaped tail end of the balloon and the side wall of the mounting groove.

Preferably, the flexible tube is provided with a connecting plate for abutting against the fan-shaped tail end of the balloon, and the connecting plate is a side wall of the first guide groove; the connecting plate is positioned in the mounting groove.

Preferably, the above-mentioned dilator further comprises: a turntable rotatably connected with the end of the flexible pipe; the coil spring is sleeved on the flexible pipe, one end of the coil spring is connected with the flexible pipe, and the other end of the coil spring is connected with the turntable; one end of the traction rod is hinged with the saccule, and the other end of the traction rod is hinged with the turntable; the traction rods are a plurality of and circumferentially arranged on the turntable. Preferably, the flexible tube is provided with a second guide groove communicating with the first guide groove.

Preferably, the light shadow device comprises a light source camera, a processor and a display; the light source camera is arranged at the end part of the flexible pipe; the light source camera and the display are electrically connected with the processor.

Preferably, the above-mentioned optical rod further includes an optical rod having a high transmittance; the light bar is arranged at the end of the flexible pipe and is electrically connected with the processor.

Preferably, a pressure sensor is arranged between the inner side wall of the balloon and the outer side wall of the flexible tube, and the pressure sensor is electrically connected with the processor.

Compared with the prior art, the embodiment of the utility model has at least the following advantages or beneficial effects:

The flexible tube is inserted into the oral cavity, and the light shadow equipment observes the environment in the oral cavity, so that the flexible tube is convenient to advance, and the balloon is in a contracted state at the moment and cannot block the movement of the flexible tube; inserting a flexible tube into the closed epiglottis by a light shadow device and leaving the balloon in place in the epiglottis; the inflatable part is controlled to inflate the balloon, the balloon expands to prop open the epiglottis, a first guide groove is formed between the fan-shaped annular balloon and the flexible tube, medical staff can pass the tracheal catheter through the epiglottis along the first guide groove and insert the tracheal catheter, at the moment, the inflatable part is controlled to deflate the balloon, the flexible tube is pulled out of the oral cavity of a patient after the balloon is contracted, and the tracheal catheter is kept motionless in the process of being pulled out of the flexible tube. The dilator can dilate the throat of a patient, is convenient for the tracheal catheter to pass through the epiglottis and be inserted into the trachea, and has simple operation, convenience and practicability.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of the structure of a self-expanding laryngoscope according to an embodiment of the utility model;

FIG. 2 is an enlarged view at A in FIG. 1;

FIG. 3 is a schematic view of the structure of the airway tube and balloon according to an embodiment of the present utility model;

FIG. 4 is a schematic view of a balloon according to an embodiment of the present utility model in a compressed state;

Fig. 5 is a schematic view of the balloon according to an embodiment of the present utility model in an expanded state.

Icon: 100. a flexible tube; 110. a connecting plate; 120. a handle; 200. a light shadow apparatus; 310. a balloon; 320. an inflatable member; 330. an air duct; 340. a turntable; 350. a coil spring; 360. a traction rod; 410. a first guide groove; 420. a second guide groove; 500. and (3) a light bar.

Detailed Description

In order to make the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be described in detail below. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, based on the examples herein, which are within the scope of the utility model as defined by the claims, will be within the scope of the utility model as defined by the claims.

The present utility model provides a self-expanding laryngoscope, with reference to figures 1 to 5, comprising: a flexible tube 100; a light and shadow device 200 disposed on the flexible tube 100 for capturing images of the throat; a dilator for dilating a throat of a patient; the dilator comprises: a balloon 310 sleeved on the outer side wall of the flexible tube 100; an inflator 320 for inflating and deflating the balloon 310; an air duct 330, both ends of which are respectively communicated with the balloon 310 and the inflator 320; wherein, the balloon 310 is in a fan-shaped ring shape, and a cavity between the fan-shaped notch of the balloon 310 and the outer side wall of the flexible tube 100 is a first guide groove 410.

In some embodiments, the flexible tube 100 may include a metal hose and a silicone tube sleeved on the inner side of the metal hose, and a through hole for passing the conductive wire and the air duct 330 is formed in the middle of the silicone tube. The head of the flexible tube 100 may be provided with a dilator and the tail may be provided with a handle 120, the handle 120 being convenient for the medical staff to hold. The flexible tube 100 is inserted into the oral cavity of a patient, the light shadow device 200 observes the environment inside the oral cavity, so that the flexible tube 100 can be conveniently advanced, and the balloon 310 is in a contracted state at the moment and cannot block the movement of the flexible tube 100; inserting the flexible tube 100 into the closed epiglottis by the intra-oral image acquired by the light shadow apparatus 200, adjusting the axial position of the flexible tube 100 so that the balloon 310 stays at the position of the epiglottis; the balloon 310 is inflated by the control inflator 320, the balloon 310 expands to open the epiglottis, and the expanded balloon 310 forms a first guide groove 410 between the scallop and the side wall of the flexible tube 100 due to the fan-shaped ring shape of the cross section of the balloon 310. At this time, the endotracheal tube is inserted into the mouth and inserted into the patient's trachea through the epiglottis along the first guide groove 410, the inflatable member 320 is controlled to deflate the balloon, and the endotracheal tube is held stationary while the flexible tube 100 is withdrawn from the patient's mouth after the balloon 310 is contracted. In conclusion, the dilator can dilate the throat of a patient, so that the tracheal catheter can be conveniently inserted into the trachea through the epiglottis, and the operation is simple, convenient and practical.

In some embodiments, referring to fig. 1, the inflator 320 may be an air pump that can be inflated and deflated. In other embodiments, the inflator 320 may include an inflatable bladder and an inflation valve; the inflation valve is positioned between the inflation air bag and the air duct 330, the inflation valve can be a one-way valve, and the air duct 330 can be pumped by pressing the inflation air bag so as to expand the balloon 310; the air duct 330 is connected with the air charging valve in a plug-in mode, and the air charging valve is pulled out of the air duct 330, so that the air in the balloon 310 can be discharged.

In some embodiments, the outer sidewall of the flexible tube 100 may be sleeved with a bite block, which is in a sleeve shape, for being clamped on the teeth of the patient, so as to prevent the teeth of the patient from biting the flexible tube 100 and affecting the advancing of the flexible tube 100. The bite block may be a disposable item.

In some embodiments, referring to fig. 1 and 3, the flexible tube 100 is provided with an annular mounting groove on the outside, and the scalloped end of the balloon 310 and the mounting groove side wall form a first guide groove 410. In detail, the mounting groove is convenient for accommodating the balloon 310, and the outer side wall of the balloon 310 is smaller than the outer side wall of the flexible tube 100 when the balloon 310 is contracted, and the balloon 310 is positioned in the mounting groove, so that the balloon 310 cannot interfere with the inner wall of the oral cavity when a medical staff inserts or withdraws the flexible tube 100 from the oral cavity.

In some embodiments, referring to fig. 3, the flexible tube 100 is provided with a web 110 for abutting the scalloped end of the balloon 310, the web 110 being a sidewall of the first guide slot 410; the connection plate 110 is located in the mounting groove. In detail, the connection plate 110 is mainly used for supporting the balloon 310, so as to prevent the balloon 310 from pressing the first guide groove 410 after expanding, and influence the trafficability of the tracheal catheter in the first guide groove 410.

In some embodiments, referring to fig. 4 and 5, the dilator further comprises: a turntable 340 rotatably connected to an end of the flexible pipe 100; a coil spring 350 which is sleeved on the flexible pipe 100 and has one end connected to the flexible pipe 100 and the other end connected to the turntable 340; a traction rod 360, one end of which is hinged with the balloon 310, and the other end of which is hinged with the turntable 340; the number of the traction rods 360 is plural and circumferentially arranged on the turntable 340. Preferably, the flexible pipe 100 is provided with a second guide groove 420 communicating with the first guide groove 410.

In detail, when the coil springs 350 are in an unstressed state, the balloon 310 is contracted together, the petals of the balloon 310 are overlapped and folded with each other, and at this time, the cross-sectional shape of the balloon 310 is similar to the shape of a fold when the umbrella is folded, and the traction rod 360 is located in a tangential direction of the turntable 340. When the balloon 310 is inflated and expanded, the joint of the balloon 310 and the connecting plate 110 is relatively static, the balloon 310 radially expands outwards and drives one end of the traction rod 360 to be far away from the center of the flexible pipe 100, the traction rod 360 rotates relative to the rotary table 340, the traction rod 360 moves to be parallel to the radial line of the flexible pipe 100 along with the continuous expansion of the balloon 310, at the moment, the rotary table 340 rotates relative to the original state and drives the coil spring 350 to rotate, the coil spring 350 is in a stretching state, when the inflatable piece 320 is pumped away from the gas in the balloon 310, the coil spring 350 contracts and drives the rotary table 340 to rotate, and the rotary table 340 drives the balloon 310 to contract through the traction rod 360. The cooperation of the coil spring 350, the traction rod 360 and the turntable 340 allows the balloon 310 to be contracted to a more regular shape, and the phenomenon that a part of the balloon 310 exceeds the mounting groove does not occur. The length of the traction rod 360 may be set according to the radius of the desired expansion of the balloon 310.

In some embodiments, referring to fig. 1, the flexible tube 100 is provided with a second guide groove 420 in communication with the first guide groove 410. In detail, the second guide groove 420 is radially provided on the outer sidewall of the flexible tube 100 to facilitate guiding of the endotracheal tube.

In some embodiments, the light and shadow apparatus 200 includes a light source camera, a processor, and a display; the light source camera is arranged at the end part of the flexible pipe 100; the light source camera and the display are electrically connected with the processor. In detail, the light source camera is provided with a light source, so that the oral cavity can be conveniently subjected to searchlighting, the processor can be positioned in the handle 120, and a power supply, such as a battery, which is electrically connected with the processor can be further arranged in the handle 120. The display may be an external computer display screen. The light and shadow device 200 is used to capture images of the interior of the oral cavity, facilitating advancement of the laryngoscope.

In some embodiments, referring to fig. 1 and 2, further comprising a light rod 500 having a high transmittance; the light wand 500 is disposed at the end of the flexible tube 100 and is electrically connected to the processor. In detail, the light bar 500 may be a red light high-transmittance LED lamp, when the patient is a difficult airway and more blood, mucus secretion or gas is present in the throat of the patient, the light bar 500 may be turned on, and at this time, the medical staff may observe the position of the laryngoscope head and the blurred projection of the laryngoscope throat from the external red light of the throat of the patient, so as to adjust the position of the laryngoscope head, and the balloon 310 is located at the epiglottis of the patient, so that the tracheal catheter is more convenient to enter the trachea.

In some embodiments, a pressure sensor is disposed between the inner sidewall of balloon 310 and the outer sidewall of flexible tube 100, the pressure sensor being in electrical communication with the processor. In detail, the pressure sensor is used to detect the pressure between the balloon 310 and the side wall of the patient's throat, so that the balloon 310 is not expanded in size too much to cause the patient's throat to be distended. The pressure detected by the pressure sensor can be displayed on the display, so that the medical staff can read the pressure conveniently.

The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims

1. A self-expanding laryngoscope, comprising:

A flexible tube;

a light shadow device disposed on the flexible tube and configured to capture images of the throat;

a dilator for dilating a throat of a patient; the dilator comprises: the balloon is sleeved on the outer side wall of the flexible pipe; an inflation member for inflating and deflating the balloon; the two ends of the air duct are respectively communicated with the balloon and the inflatable piece; the balloon is in a fan-shaped ring shape, and a cavity between the fan-shaped notch of the balloon and the outer side wall of the flexible tube is a first guide groove.

2. A self-expanding laryngoscope according to claim 1, wherein the flexible tube is provided with an annular mounting groove on the outside, the scalloped end of the balloon and the mounting groove side wall forming the first guide groove.

3. A self-expanding laryngoscope according to claim 2, wherein the flexible tube is provided with a web for abutting the scalloped end of the balloon, the web being a side wall of the first guide channel; the connecting plate is located in the mounting groove.

4. A self-expanding laryngoscope as recited in claim 2, wherein the dilator further comprises: a turntable rotatably connected to an end of the flexible pipe; the coil spring is sleeved on the flexible pipe, one end of the coil spring is connected with the flexible pipe, and the other end of the coil spring is connected with the turntable; one end of the traction rod is hinged with the saccule, and the other end of the traction rod is hinged with the turntable; the traction rods are multiple in number and circumferentially arranged on the rotary table.

5. A self-expanding laryngoscope according to claim 1, wherein the flexible tube is provided with a second guide slot in communication with the first guide slot.

6. A self-expanding laryngoscope as claimed in claim 1, wherein the light and shadow device comprises a light source camera, a processor and a display; the light source camera is arranged at the end part of the flexible pipe; the light source camera and the display are electrically connected with the processor.

7. A self-expanding laryngoscope as recited in claim 6, further comprising a light bar having a high transmission rate; the light bar is arranged at the end part of the flexible pipe and is electrically connected with the processor.

8. A self-expanding laryngoscope according to claim 6, wherein a pressure sensor is provided between the inner side wall of the balloon and the outer side wall of the flexible tube, the pressure sensor being electrically connected to the processor.