Multifunctional soft and hard dual-purpose intubation laryngoscope and use method thereof

Abstract

The invention relates to the technical field of medical instruments, and provides a multifunctional soft and hard dual-purpose intubation laryngoscope and a using method thereof.The multifunctional soft and hard dual-purpose intubation laryngoscope comprises a soft lens tube cavity (1), a soft lens tube cavity (2) and a hard lens tube cavity (3), the operating end (2) is provided with a guide wire interface (3) and a functional interface (4); the hard endoscope tube extends into the flexible endoscope tube cavity (1) from the operating end (2), and supports and plastically guides the flexible endoscope tube cavity (1) to lower the tube; the functional tube comprises a probe tube (5) for inserting a camera probe, a guide wire tube (6) which is communicated with the guide wire interface (3) and is used for inserting a guide wire and guiding the guide wire, and an auxiliary tube (7) which is communicated with the functional interface (4) and is used for inserting a suction tube or an oxygen catheter; and the operation end (2) is provided with a display screen (8) connected with the camera probe. The suction tube is communicated front and back, can suck secretions in the cavity of a patient, can also be used for supplying oxygen, and keeps the oxygen saturation of the patient during tracheal intubation.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a multifunctional soft and hard dual-purpose intubation laryngoscope and a use method thereof. Background Art

[0002] At present, the existing auxiliary intubation tools generally include a visual laryngoscope and a fiberoptic bronchoscope (or an electronic scope), but the existing auxiliary intubation tools have the following defects:

[0003] 1. Video laryngoscope;

[0004] The front camera has a small field of view and can only observe the front. It has requirements for oral exposure. It may not be used when the oral exposure range is small, or there is damage or difficult airway. It does not have oxygen supply function.

[0005] 2. Fiberoptic bronchoscope (or electronic bronchoscope);

[0006] The front field of view is small, and the fiberoptic bronchoscope (or electronic scope) is too long. When it is only used to assist tracheal intubation, a large part of the length cannot be used. The fiberoptic bronchoscope (or electronic scope) is inconvenient to operate. First, it is too long, which is troublesome to lift or rotate. Second, the structure of the operating part is complex and large, and it is not easy to operate with one hand. The fiberoptic bronchoscope cannot solve the problem of cavity secretions, which can easily cause blurred vision or ineffectiveness, and is not conducive to the discharge of patient secretions.

[0007] Moreover, the existing auxiliary intubation tools have the problem that the lower tube section inserted below the patient's mouth has a poor shaping ability in the mouth due to its soft texture. Therefore, when used, it cannot fully reveal the field of vision at the glottis for patients with a large distance from the mouth to the glottis, short mandible and high glottis, resulting in a greatly reduced chance of successful intubation. Summary of the invention

[0008] The purpose of the present invention is to solve at least one technical problem in the background technology and to provide a multifunctional soft and hard dual-purpose intubation laryngoscope and a method for using the same.

[0009] To achieve the above object, the present invention provides a multifunctional soft and hard dual-purpose intubation laryngoscope, comprising:

[0010] The lumen of the soft endoscope has multiple functional tubes arranged inside;

[0011] An operating end, on which a guidewire interface and a functional interface are provided;

[0012] A hard endoscope tube extends from the operating end into the lumen of the soft endoscope to support and plastically guide the lower tube of the lumen of the soft endoscope;

[0013] The functional tube includes a probe tube for inserting a camera probe, a guide wire tube connected to the guide wire interface and used for inserting and guiding the guide wire, and an auxiliary tube connected to the functional interface and used for inserting a suction tube or an oxygen supply tube;

[0014] The operating end is provided with a display screen connected to a camera probe.

[0015] According to one aspect of the present invention, the lumen of the flexible endoscope is 30 cm long.

[0016] According to one aspect of the present invention, the hard endoscope tube is supported between the functional tube and the inner wall of the soft endoscope lumen.

[0017] Furthermore, to achieve the above-mentioned purpose, the present invention also provides a method for using a multifunctional soft and hard dual-purpose intubation laryngoscope, comprising:

[0018] Insert the camera probe into the probe tube of the flexible endoscope lumen;

[0019] Insert the soft endoscope lumen into the patient's glottis through the hard endoscope tube, and pull out the hard endoscope tube;

[0020] Through observation with the video probe, when the glottis of the patient is fully exposed, an endotracheal tube is inserted through the patient's mouth;

[0021] When the endotracheal tube is inserted into the airway to the appropriate depth, remove the camera and the soft endoscope lumen and fix the endotracheal tube;

[0022] During the insertion of the flexible endoscope, if sputum secretions appear in the patient's airway, suction operation is performed by inserting a suction tube at the functional interface of the operation end and the auxiliary tube of the flexible endoscope lumen to discharge the sputum secretions;

[0023] When the soft endoscope lumen insertion time exceeds the preset time or the patient's oxygen saturation is lower than the preset value, an oxygen supply operation is performed by inserting an oxygen supply tube at the functional interface of the operating end and the auxiliary tube of the soft endoscope lumen to supplement oxygen for the patient.

[0024] Furthermore, to achieve the above-mentioned purpose, the present invention also provides a method for using a multifunctional soft and hard dual-purpose intubation laryngoscope, comprising:

[0025] Insert the camera probe into the probe tube of the flexible endoscope lumen;

[0026] Insert the soft endoscope lumen into the patient's glottis through the hard endoscope tube, and pull out the hard endoscope tube;

[0027] Through observation with the camera probe, when the glottis of the patient is fully exposed, insert the J-shaped guidewire into the patient's airway through the guidewire interface at the operating end and the guidewire tube in the lumen of the soft endoscope;

[0028] After successful guidewire placement, the camera and the soft endoscope lumen are withdrawn, anesthesia is administered over the guidewire to induce sedation, and then a hollow tube exchange catheter is inserted over the guidewire;

[0029] When the tube-changing catheter is in place, the endotracheal tube is inserted through the guide wire and the tube-changing catheter. When the endotracheal tube is inserted to a suitable depth through the tube-changing catheter, the tube-changing catheter is withdrawn and the endotracheal tube is fixed.

[0030] During the insertion of the flexible endoscope, if sputum secretions appear in the patient's airway, suction operation is performed by inserting a suction tube at the functional interface of the operation end and the auxiliary tube of the flexible endoscope lumen to discharge the sputum secretions;

[0031] When the soft endoscope lumen insertion time exceeds the preset time or the patient's oxygen saturation is lower than the preset value, an oxygen supply operation is performed by inserting an oxygen supply tube at the functional interface of the operating end and the auxiliary tube of the soft endoscope lumen to supplement oxygen for the patient.

[0032] Furthermore, to achieve the above-mentioned purpose, the present invention also provides a method for using a multifunctional soft and hard dual-purpose intubation laryngoscope, comprising:

[0033] Insert the camera probe into the probe tube of the flexible endoscope lumen;

[0034] Place the front end of the tube-changing catheter in front of the lumen of the soft endoscope, insert the tube-changing catheter to the glottis of the patient, and insert the lumen of the soft endoscope to the glottis of the patient through the hard endoscope tube, and pull out the hard endoscope tube;

[0035] Through observation with the video probe, when the glottis of the patient is fully exposed, continue to place the tube exchange catheter into the airway;

[0036] When the tube exchange catheter is inserted into the airway to the appropriate depth, remove the camera and the soft endoscope lumen, then take out the endotracheal tube and insert it through the tube exchange catheter to the appropriate depth, then remove the tube exchange catheter and fix the endotracheal tube;

[0037] During the insertion of the flexible endoscope, if sputum secretions appear in the patient's airway, suction operation is performed by inserting a suction tube at the functional interface of the operation end and the auxiliary tube of the flexible endoscope lumen to discharge the sputum secretions;

[0038] When the soft endoscope lumen insertion time exceeds the preset time or the patient's oxygen saturation is lower than the preset value, an oxygen supply operation is performed by inserting an oxygen supply tube at the functional interface of the operating end and the auxiliary tube of the soft endoscope lumen to supplement oxygen for the patient.

[0039] According to one solution of the present invention, the hard endoscope tube is supported between the inner wall of the functional tube and the soft endoscope tube cavity. A channel for inserting the hard endoscope tube into the soft endoscope tube cavity is provided at the bottom of the operating end, and a limiting groove for clamping the bottom of the hard endoscope tube is provided at the bottom of the channel. In this way, when the hard endoscope tube is inserted into the soft endoscope tube cavity through the above-mentioned channel, the bottom of the hard endoscope tube can be limited at the limiting groove, so that the length of the hard endoscope tube extending into the soft endoscope tube cavity is fixed, and the top position of the hard endoscope tube is stable and fixed. In this way, the soft endoscope tube cavity is supported from the inside of the soft endoscope tube cavity by the hard endoscope tube. Because the hard endoscope tube has excellent shaping ability, the shaping ability of the soft endoscope tube cavity during the tube insertion process can be effectively improved by the hard endoscope tube, ensuring that when in use, the glottis can be fully exposed to the field of view at the glottis for patients with a large distance from the mouth to the glottis and short mandibles and high glottis, thereby greatly increasing the chance of successful intubation.

[0040] Moreover, the dual use of a straight mirror and a soft mirror (i.e., a hard mirror and a soft mirror in combination) can not only fully ensure that the soft mirror has good shaping and exposure capabilities in the oral cavity, but also ensure the supporting and exposure role of the hard mirror after the soft mirror is well exposed. What is more worth emphasizing is that the two are easy to switch when used in combination. Using them alone or in combination can give full play to the advantages of coordinated use under special conditions, greatly increasing the chance of successful intubation.

[0041] According to the solution of the present invention, the functional interface can be connected to the suction connector or the oxygen supply connector. When connected to the suction connector, an external suction tube can be connected to discharge the patient's cavity secretions; when connected to the oxygen supply connector, an external oxygen supply tube can be connected to maintain the patient's oxygen saturation during intubation to prevent the patient from hypoxia. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 A schematic diagram showing the structural arrangement of a multifunctional soft and hard dual-purpose intubation laryngoscope according to an embodiment of the present invention;

[0043] Figure 2 A schematic diagram showing the structural arrangement of a multifunctional soft and hard dual-purpose intubation laryngoscope according to a second embodiment of the present invention;

[0044] Figure 3 The structural layout of a multifunctional soft and hard dual-purpose intubation laryngoscope according to a third embodiment of the present invention is schematically shown. DETAILED DESCRIPTION

[0045] The present invention will now be discussed with reference to exemplary embodiments. It should be understood that the embodiments discussed are only to enable those skilled in the art to better understand and thus implement the present invention, rather than implying any limitation on the scope of the present invention.

[0046] As used herein, the term “including” and variations thereof are to be interpreted as open-ended terms meaning “including, but not limited to.” The term “based on” is to be interpreted as “based, at least in part, on.” The terms “one embodiment” and “an embodiment” are to be interpreted as “at least one embodiment.”

[0047] Figure 1 The structure layout of a multifunctional soft and hard dual-purpose intubation laryngoscope according to an embodiment of the present invention is schematically shown. Figure 1 As shown, in this embodiment, the multifunctional soft and hard dual-purpose intubation laryngoscope comprises:

[0048] The flexible endoscope lumen 1 has multiple functional tubes arranged inside;

[0049] An operating end 2, on which a guidewire interface 3 and a functional interface 4 are provided;

[0050] The hard endoscope tube (not shown in the figure) extends from the operating end 2 into the soft endoscope lumen 1 to support and plastically guide the tube down the soft endoscope lumen 1;

[0051] The functional tube includes a probe tube 5 for inserting a camera probe, a guide wire tube 6 connected to the guide wire interface 3 for inserting and guiding the guide wire, and an auxiliary tube 7 connected to the functional interface 4 for inserting a suction tube or an oxygen supply tube;

[0052] The operating end 2 is provided with a display screen 8 connected to a camera probe.

[0053] Further, according to one embodiment of the present invention, the flexible endoscope lumen 1 is 30 cm long.

[0054] Further, according to one embodiment of the present invention, the hard endoscope tube is supported between the functional tube and the inner wall of the soft endoscope lumen.

[0055] In this embodiment, a channel for inserting the hard endoscope tube into the soft endoscope lumen 1 is provided at the bottom of the operating end 2, and a limiting groove for clamping the bottom of the hard endoscope tube is provided at the bottom of the channel. In this way, when the hard endoscope tube is inserted into the soft endoscope lumen 1 through the above-mentioned channel, the bottom of the hard endoscope tube can be limited at the limiting groove, so that the length of the hard endoscope tube extending into the soft endoscope lumen 1 is fixed, and the top position of the hard endoscope tube is stable and fixed. In this way, the soft endoscope lumen 1 is supported from the inside of the soft endoscope lumen 1 by the hard endoscope tube. Because the hard endoscope tube has excellent shaping ability, the shaping ability of the soft endoscope lumen 1 during the tube lowering process can be effectively improved by the hard endoscope tube, ensuring that when in use, the field of view at the glottis can be fully revealed for patients with a large distance from the mouth to the glottis, short mandible and high glottis, thereby greatly increasing the chance of successful intubation.

[0056] Moreover, the dual use of a straight mirror and a soft mirror (i.e., a hard mirror and a soft mirror in combination) can not only fully ensure that the soft mirror has good shaping and exposure capabilities in the oral cavity, but also ensure the supporting and exposure role of the hard mirror after the soft mirror is well exposed. What is more worth emphasizing is that the two are easy to switch when used in combination. Using them alone or in combination can give full play to the advantages of coordinated use under special conditions, greatly increasing the chance of successful intubation.

[0057] According to the above scheme of the present invention, the suction tube is connected front to back and can suction the patient's cavity secretions, and can also be used to supply oxygen to maintain the patient's oxygen saturation during tracheal intubation.

[0058] According to the above solution of the present invention, the functional interface can be connected to the suction connector or the oxygen supply connector. When connected to the suction connector, an external suction tube can be connected to discharge the patient's cavity secretions; when connected to the oxygen supply connector, an external oxygen supply tube can be connected to maintain the patient's oxygen saturation during intubation to prevent the patient from hypoxia.

[0059] Furthermore, to achieve the above-mentioned purpose, the present invention also provides a method for using a multifunctional soft and hard dual-purpose intubation laryngoscope, comprising:

[0060] Insert the camera probe into the probe tube 5 of the flexible endoscope lumen 1;

[0061] Insert the soft endoscope lumen 1 into the glottis of the patient through the hard endoscope tube, and pull out the hard endoscope tube;

[0062] Through observation with the video probe, when the glottis of the patient is fully exposed, an endotracheal tube is inserted through the patient's mouth;

[0063] When the endotracheal tube is inserted into the airway to a suitable depth, the camera and the soft endoscope lumen 1 are withdrawn, and the endotracheal tube is fixed;

[0064] During the insertion of the flexible endoscope lumen 1, if sputum secretions appear in the patient's airway, a suction operation is performed by inserting a suction tube at the functional interface 4 of the operation end 2 and the auxiliary tube 7 of the flexible endoscope lumen 1 to discharge the sputum secretions;

[0065] When the insertion time of the flexible endoscope lumen 1 exceeds the preset time or the patient's oxygen saturation is lower than the preset value, an oxygen supply operation is performed by inserting an oxygen supply tube at the functional interface 4 of the operating end 2 and the auxiliary tube 7 of the flexible endoscope lumen 1 to supplement oxygen for the patient.

[0066] In this embodiment, the method of using the multifunctional soft and hard dual-purpose intubation laryngoscope is applicable to tracheal intubation operations with normal mouth opening under normal circumstances.

[0067] In this embodiment, the specific operation steps are as follows:

[0068] a. Generally, the patient only needs to be placed in a normal supine position with the head tilted back and the mouth open. (When the exposure is poor, the patient's mouth, pharynx and airway can be kept in a straight line as much as possible).

[0069] b. Prepare a suitable endotracheal tube and sterilize a spare intubation soft endoscope (soft endoscope lumen). Hold the endoscope with your left hand to expose the glottis, so that the glottis is in the center of the visual field for the best display. Hold the endotracheal tube with your right hand to insert the endotracheal tube along the edge of the soft endoscope. Insert the endotracheal tube toward the glottis under direct vision in the soft endoscope display field.

[0070] c. Hold the upper middle part of the endotracheal tube with your right hand and the operating part of the soft mirror with your left hand. First, use the soft mirror to fully expose the glottis, and then insert the endotracheal tube through the mouth. Avoid violent operation that may cause mucosal damage.

[0071] d. Observe the real-time scene in the oropharynx and airway monitored by the soft endoscope camera, locate the glottis, and slowly insert the endotracheal tube into the airway.

[0072] e. The endotracheal tube is inserted into the airway to an appropriate depth. For adults, the depth of the tube is generally 20-22 cm from the front teeth. Remove the intubation soft mirror, fix the endotracheal tube, and connect the anesthesia machine or ventilator to ventilate the patient. The intubation operation is completed.

[0073] f. During the intubation process, if the patient has secretions such as sputum, a suction tube can be connected to the multi-functional conversion connector (functional interface) of the soft endoscope to perform suction operations to discharge the secretions, ensuring a clear front-end field of view and a clean patient cavity.

[0074] g. If the intubation time is too long, or the patient's oxygen saturation is too low (less than 90%) or drops by more than 4%, you can connect the oxygen supply tube to the multi-functional conversion joint of the soft mirror to supplement oxygen for the patient to ensure the patient's safety.

[0075] Furthermore, to achieve the above-mentioned purpose, the present invention also provides another method for using a multifunctional soft and hard dual-purpose intubation laryngoscope, comprising:

[0076] Insert the camera probe into the probe tube 5 of the flexible endoscope lumen 1;

[0077] Insert the soft endoscope lumen 1 into the glottis of the patient through the hard endoscope tube, and pull out the hard endoscope tube;

[0078] Through observation with the camera probe, when the glottis of the patient is fully exposed, a J-shaped guidewire is inserted into the patient's airway through the guidewire interface 3 of the operating end 2 and the guidewire tube 6 of the flexible endoscope lumen 1;

[0079] After successful guidewire placement, the camera and soft endoscope lumen 1 are withdrawn, anesthesia is administered over the guidewire for sedation induction, and then a hollow tube replacement catheter is inserted over the guidewire;

[0080] When the tube-changing catheter is in place, the endotracheal tube is inserted through the guide wire and the tube-changing catheter. When the endotracheal tube is inserted to a suitable depth through the tube-changing catheter, the tube-changing catheter is withdrawn and the endotracheal tube is fixed.

[0081] During the insertion of the flexible endoscope lumen 1, if sputum secretions appear in the patient's airway, a suction operation is performed by inserting a suction tube at the functional interface 4 of the operation end 2 and the auxiliary tube 7 of the flexible endoscope lumen 1 to discharge the sputum secretions;

[0082] When the insertion time of the flexible endoscope lumen 1 exceeds the preset time or the patient's oxygen saturation is lower than the preset value, an oxygen supply operation is performed by inserting an oxygen supply tube at the functional interface 4 of the operating end 2 and the auxiliary tube 7 of the flexible endoscope lumen 1 to supplement oxygen for the patient.

[0083] In this embodiment, the method of using the multifunctional soft and hard dual-purpose intubation laryngoscope is suitable for difficult airways, small mouth opening, poor coordination and unsuitable for tracheal intubation operations under direct anesthesia induction.

[0084] In this embodiment, the specific operation steps are as follows:

[0085] a. Place the patient in a supine position with the head tilted back and mouth open. If exposure is poor, the patient's mouth, pharynx, and airway can be aligned as closely as possible.

[0086] b. Take a sterilized and spare intubation soft mirror. Use your left hand to hold the operating part of the soft mirror and push it to the glottis to fully observe and expose the glottis. Avoid violent manipulation to prevent mucosal damage.

[0087] c. Take a J-shaped guidewire and insert it through the guidewire hole of the soft mirror with your right hand. After the front end of the guidewire comes out of the soft mirror, slowly insert the guidewire into the airway through the glottis under the monitoring of the camera.

[0088] d. Remove the soft lens.

[0089] e. Once the guidewire is successfully placed, anesthesia and sedation can be induced. A hollow tube exchange catheter can be inserted through the guidewire. A tracheal tube of appropriate specifications is taken from the guidewire. The right hand is used to operate the tube, holding it in the upper middle part, and the tube is slowly and smoothly inserted through the tube exchange catheter.

[0090] f. Observe the intubation mark positioning. After the intubation is in place, remove the tube replacement catheter and fix the endotracheal tube. The intubation operation is completed.

[0091] g. During the insertion of the soft endoscope, if the patient has secretions such as sputum, a suction tube can be connected to the multi-functional conversion joint of the soft endoscope to perform continuous suction operations to discharge the secretions, ensure a clear front-end field of view and a clean patient cavity.

[0092] h. If the soft endoscope is placed for a long time, or the patient's oxygen saturation is low (below 90%) or drops by more than 4%, an oxygen supply tube can be connected to the multi-functional conversion connector of the soft endoscope to supplement oxygen for the patient to ensure patient safety.

[0093] Furthermore, to achieve the above-mentioned purpose, the present invention also provides a third method for using the multifunctional soft and hard dual-purpose intubation laryngoscope, comprising:

[0094] Insert the camera probe into the probe tube 5 of the flexible endoscope lumen 1;

[0095] Place the front end of the tube changing catheter in front of the soft endoscope lumen 1, insert the tube changing catheter to the glottis of the patient, and at the same time insert the soft endoscope lumen 1 to the glottis of the patient through the hard endoscope tube, and pull out the hard endoscope tube;

[0096] Through observation with the video probe, when the glottis of the patient is fully exposed, continue to place the tube exchange catheter into the airway;

[0097] When the tube exchange catheter is inserted into the airway to a suitable depth, the camera and the soft endoscope lumen 1 are withdrawn, and then the endotracheal tube is taken out and inserted through the tube exchange catheter to a suitable depth, and then the tube exchange catheter is withdrawn and the endotracheal tube is fixed;

[0098] During the insertion of the flexible endoscope lumen 1, if sputum secretions appear in the patient's airway, a suction operation is performed by inserting a suction tube at the functional interface 4 of the operation end 2 and the auxiliary tube 7 of the flexible endoscope lumen 1 to discharge the sputum secretions;

[0099] When the insertion time of the flexible endoscope lumen 1 exceeds the preset time or the patient's oxygen saturation is lower than the preset value, an oxygen supply operation is performed by inserting an oxygen supply tube at the functional interface 4 of the operating end 2 and the auxiliary tube 7 of the flexible endoscope lumen 1 to supplement oxygen for the patient.

[0100] In this embodiment, the method of using the multifunctional soft and hard dual-purpose intubation laryngoscope is suitable for tracheal intubation operations with difficult airways and small mouth opening.

[0101] In this embodiment, the specific operation steps are as follows:

[0102] a. Place the patient in a supine position with the head tilted back and mouth open so that the patient's mouth, pharynx, and airway are in a straight line as much as possible.

[0103] b. Take one intubation endoscope and one tube changing catheter. Hold the endoscope operating part with your left hand and the tube changing catheter with your right hand. The endoscope and tube changing catheter should be placed side by side, with the front end of the tube changing catheter in front of the endoscope.

[0104] c. When inserting the flexible endoscope and the tube exchange catheter through the mouth, violent manipulation should be avoided to prevent mucosal damage.

[0105] d. Observe the real-time scene in the oropharynx and airway monitored by the soft endoscope camera, locate the glottis, and slowly insert the tube-changing catheter into the airway.

[0106] e. Remove the soft lens.

[0107] f. Take a endotracheal tube of appropriate size, operate it with your right hand, hold it in the upper middle part of the tube, and slowly insert the tube through the tube changing catheter.

[0108] g. Observe the intubation mark positioning. After the intubation is in place, remove the tube replacement catheter and fix the endotracheal tube. The intubation operation is completed.

[0109] g. During the insertion of the soft endoscope, if the patient has secretions such as sputum, a suction tube can be connected to the multifunctional conversion joint of the soft endoscope to perform suction operations to discharge the secretions, ensure a clear front-end field of view and a clean patient cavity.

[0110] h. If the soft endoscope is placed for a long time, or the patient's oxygen saturation is low (below 90%) or drops by more than 4%, an oxygen supply tube can be connected to the multi-functional conversion connector of the soft endoscope to supplement oxygen for the patient to ensure patient safety.

[0111] Further, Figure 2 The structure layout diagram of the multifunctional soft and hard dual-purpose intubation laryngoscope according to the second embodiment of the present invention is schematically shown. Figure 2 As shown, different from the first embodiment described above, this embodiment adds a hinge structure on the basis of the above embodiment, and the top of the hinge 9 in the hinge structure is fixed at a certain distance (such as about 1 cm) from the top of the flexible endoscope lumen 1. The lower end of the hinge 9 is empty and extends to the operating end 2 through a thin metal wire 10.

[0112] A roller handle 12 with a rotating shaft 11 is installed at the operating end 2. One end of the metal wire 10 is on the rotating shaft 11. By turning the handle 12 clockwise, the metal wire 10 can be pulled to tighten the hinge 9, thereby tightening the flexible endoscope lumen 1. At this time, the flexible endoscope lumen 1 cannot be bent. After it is in place, the handle 12 is clamped on the fixing pin (not shown in the figure) next to the handle.

[0113] When the fixing pin is opened, the handle 12 and the rotating shaft 11 can automatically rotate counterclockwise under the force of the metal wire 10, the hinge 9 is relaxed, and the lumen of the soft endoscope can be bent.

[0114] Further, Figure 3 The structure layout diagram of the multifunctional soft and hard dual-purpose intubation laryngoscope according to the third embodiment of the present invention is schematically shown. Figure 3As shown, different from the above-mentioned second embodiment, this embodiment replaces the hinge structure in the second embodiment with a spring structure. In this embodiment, the spring structure is similar to the principle of the above-mentioned hinge structure, except that the above-mentioned hinge 9 is replaced by a spring 13. The operation method is similar to the above-mentioned second embodiment.

[0115] According to the above scheme of the present invention, the present invention has excellent shaping ability in the oral cavity, so when used, it can fully reveal the field of vision at the glottis for patients with a large distance from the mouth to the glottis, short mandible and high glottis, thereby greatly increasing the chance of successful intubation.

[0116] Moreover, according to another embodiment of the present invention, a layer of 0.2 mm thick aluminum foil thermal insulation cotton is covered on the inner wall of the flexible endoscope lumen 1 as a thermal insulation layer to play a role in thermal insulation.

[0117] The interior of the heat insulation layer is filled with polyester low-temperature thermoplastic material, and carbon fiber heating wires are arranged longitudinally inside the thermoplastic material.

[0118] The carbon fiber heating wire is connected to the DC12V low-voltage DC power interface equipped in the operating end 2. When powered on, the carbon fiber wire can be heated by electricity. Low-voltage DC heating is slow, but safer for patients. In addition, polyester thermoplastic materials have poor conductivity and will not bring electrical risks to patients.

[0119] A heating switch is arranged on the operating end 2 to control the on and off of the power supply to the carbon fiber heating wire.

[0120] A temperature sensor is arranged on the outer wall of the flexible endoscope lumen 1, and the temperature signal can be transmitted to the control system and display screen of the operating end.

[0121] At the same time, two safety measures are adopted to prevent the temperature of the outer surface of the soft mirror from exceeding 37°C, which may cause harm to the patient. First, when the control system detects that the temperature is greater than 37°C, it can automatically stop heating. Second, the display screen can also display the monitored temperature in real time. When the temperature is greater than 37°C, an audible and visual alarm will be issued to remind the operator to manually cut off the heating switch and stop heating.

[0122] As set above, the soft mirror lumen 1 can realize the switching between soft and hard mirrors. The specific switching process is as follows: Usually, the mirror is placed in a normal temperature environment, and the thermoplastic material is in a hard state. At this time, the mirror can be used as a hard mirror. If it needs to be used as a soft mirror, turn on the heating switch in advance, and the material becomes soft after heating. At this time, the mirror can be used as a soft mirror. After use, turn off the power and let it cool naturally to restore the hard state.

[0123] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the above features are replaced with the technical features with similar functions disclosed in this application (but not limited to) by each other.

[0124] It should be understood that the size of the serial numbers of each step in the content of the invention and the implementation methods of the present invention does not absolutely mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the implementation methods of the present invention.

Claims

1. Multifunctional soft and hard dual-purpose intubation laryngoscope, characterized by: include: A flexible endoscope lumen (1) having a plurality of functional tubes arranged therein; An operating end (2) on which a guide wire interface (3) and a functional interface (4) are provided; A hard endoscope tube extends from the operating end (2) into the soft endoscope lumen (1) to support and plastically guide the lower tube of the soft endoscope lumen (1); The functional tube comprises a probe tube (5) for inserting a video probe, a guide wire tube (6) connected to the guide wire interface (3) and used for inserting a guide wire and guiding the guide wire, and an auxiliary tube (7) connected to the functional interface (4) and used for inserting a suction tube or an oxygen supply tube; The operating end (2) is provided with a display screen (8) connected to a camera probe.

2. The multifunctional intubation soft mirror according to claim 1, characterized in that: The flexible endoscope lumen (1) is 30 cm long.

3. The multifunctional intubation soft mirror according to claim 1, characterized in that: The hard endoscope tube is supported between the functional tube and the inner wall of the soft endoscope lumen.

4. The method for using the multifunctional soft and hard dual-purpose intubation laryngoscope according to any one of claims 1 to 3, characterized in that: include: Inserting the camera probe into the probe tube (5) of the flexible endoscope lumen (1); Inserting the soft endoscope lumen (1) into the glottis of the patient through the hard endoscope tube, and pulling out the hard endoscope tube; Through observation with the video probe, when the glottis of the patient is fully exposed, an endotracheal tube is inserted through the patient's mouth; When the endotracheal tube is inserted into the airway to an appropriate depth, remove the camera and the tube of the flexible endoscope (1) and fix the endotracheal tube; During the insertion of the flexible endoscope lumen (1), if sputum secretions appear in the patient's airway, a suction operation is performed by inserting a suction tube at the functional interface (4) of the operating end (2) and the auxiliary tube (7) of the flexible endoscope lumen (1) to discharge the sputum secretions; When the insertion time of the flexible endoscope lumen (1) exceeds a preset time or the patient's oxygen saturation is lower than a preset value, an oxygen supply operation is performed by inserting an oxygen supply tube at the functional interface (4) of the operation end (2) and the auxiliary tube (7) of the flexible endoscope lumen (1) to supplement oxygen for the patient.

5. The method for using the multifunctional soft and hard dual-purpose intubation laryngoscope according to any one of claims 1 to 3, characterized in that: include: Inserting the camera probe into the probe tube (5) of the flexible endoscope lumen (1); Inserting the soft endoscope lumen (1) into the glottis of the patient through the hard endoscope tube, and pulling out the hard endoscope tube; Through observation with a video probe, when the glottis of the patient is fully exposed, a J-shaped guidewire is inserted into the patient's airway through the guidewire interface (3) of the operating end (2) and the guidewire tube (6) of the flexible endoscope lumen (1); After successful guidewire placement, the camera and the endoscope lumen are withdrawn (1), anesthesia is administered over the guidewire to induce sedation, and then a hollow tube exchange catheter is inserted over the guidewire; When the tube-changing catheter is in place, the endotracheal tube is inserted through the guide wire and the tube-changing catheter. When the endotracheal tube is inserted to a suitable depth through the tube-changing catheter, the tube-changing catheter is withdrawn and the endotracheal tube is fixed. During the insertion of the flexible endoscope lumen (1), if sputum secretions appear in the patient's airway, a suction operation is performed by inserting a suction tube at the functional interface (4) of the operating end (2) and the auxiliary tube (7) of the flexible endoscope lumen (1) to discharge the sputum secretions; When the insertion time of the flexible endoscope lumen (1) exceeds a preset time or the patient's oxygen saturation is lower than a preset value, an oxygen supply operation is performed by inserting an oxygen supply tube at the functional interface (4) of the operation end (2) and the auxiliary tube (7) of the flexible endoscope lumen (1) to supplement oxygen for the patient.

6. The method for using the multifunctional soft and hard dual-purpose intubation laryngoscope according to any one of claims 1 to 3, characterized in that: include: Inserting the camera probe into the probe tube (5) of the flexible endoscope lumen (1); The front end of the tube replacement catheter is placed in front of the soft endoscope lumen (1), and the tube replacement catheter is inserted into the glottis of the patient. At the same time, the soft endoscope lumen (1) is inserted into the glottis of the patient through the hard endoscope tube, and the hard endoscope tube is pulled out; Through observation with the video probe, when the glottis of the patient is fully exposed, continue to place the tube exchange catheter into the airway; When the tube exchange catheter is inserted into the airway at an appropriate depth, the camera and the soft endoscope lumen (1) are withdrawn, and then the endotracheal tube is taken out and inserted through the tube exchange catheter to an appropriate depth, and then the tube exchange catheter is withdrawn and the endotracheal tube is fixed; During the insertion of the flexible endoscope lumen (1), if sputum secretions appear in the patient's airway, a suction operation is performed by inserting a suction tube at the functional interface (4) of the operating end (2) and the auxiliary tube (7) of the flexible endoscope lumen (1) to discharge the sputum secretions; When the insertion time of the flexible endoscope lumen (1) exceeds a preset time or the patient's oxygen saturation is lower than a preset value, an oxygen supply operation is performed by inserting an oxygen supply tube at the functional interface (4) of the operation end (2) and the auxiliary tube (7) of the flexible endoscope lumen (1) to supplement oxygen for the patient.

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