Disposable forward guide tube for retrograde tracheal intubation

Abstract

The utility model discloses a disposable forward guide tube for retrograde tracheal intubation, which belongs to the technical field of medical instruments and comprises a tube body, a guide joint, an air outlet and a jet vent hole, the guide joint is arranged at one end of the tube body, and the jet vent hole is connected to the top of the guide joint. A guide wire for retrograde tracheal intubation is inserted into the tube body and the guide joint, and an air outlet is formed in the outer surface of one end, far away from the guide joint, of the tube body. The guide tube has the advantages that when retrograde tracheal intubation is carried out through the guide tube, the guide wire can enter from the guide connector on the guide tube, so that the guide wire can smoothly pass through the tip end, the guide wire is convenient to pull, meanwhile, the guide tube is connected with an oxygen supply source through the jet vent hole, and the oxygen supply effect is good. And continuous oxygen supply can be achieved in the retrograde intubation process, the occurrence rate of oxyhemoglobin saturation is reduced, and the practicability of the guiding catheter is further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical equipment technical field, specifically, relate to a disposable forward guiding tube for reverse tracheal intubation. BACKGROUND

[0002] Reverse tracheal intubation refers to that puncture needle is used to puncture the cricothyroid membrane of a patient, then a guide wire (referred to as guide wire) is inserted into the respiratory tract of the patient through the puncture needle to the head side, the guide wire passes through the glottis reversely to reach the oral cavity or nasopharyngeal cavity, then a small hook or forceps is used to pull out the guide wire from the mouth or nostril, then a tracheal tube is sleeved outside the guide wire, and the tracheal tube is inserted into the trachea along the guide wire, but the difference between the outer diameter of the guide wire and the inner diameter of the tracheal tube is too large, which leads to large movement of the tracheal tube, and thus reduces the success rate of intubation, so the guide wire needs to be inserted into the forward guiding tube.

[0003] The forward guiding tube in the prior art cannot realize oxygen supply while sending the tracheal tube in the process of reverse tracheal intubation, and when facing a difficult airway or when the patient has poor oxygen reserve, the tracheal intubation doctor has to give up this intubation attempt and withdraw the tracheal tube due to the decrease of blood oxygen saturation during the tube sending process, and mask ventilation is performed again, and the intubation is performed again after the oxygen reserve is recovered, which not only increases the psychological pressure of the intubation doctor, but also greatly increases the incidence of intubation-related complications, and the practicability and safety need to be improved, and the utility model patent with the announcement number CN204932519U discloses a reverse guiding tracheal intubation, which comprises a tracheal tube, a transition guide wire is arranged in the tracheal tube, a guide wire is arranged in the transition guide wire, and a first arc-shaped bend is arranged at the front end of the guide wire, and the utility model patent cannot realize oxygen supply while sending the tracheal tube in the process of reverse tracheal intubation, and the practicability and safety need to be improved. UTILITY MODEL CONTENTS

[0004] In order to overcome the problems in the prior art that oxygen supply cannot be realized while the tracheal tube is sent in the process of reverse tracheal intubation through the forward guiding tube, the practicability and safety need to be improved, and the like, the utility model provides a disposable forward guiding tube for reverse tracheal intubation, which comprises a pipe body, a guide connector, an air outlet and a jet ventilation hole, one end of the pipe body is provided with the guide connector, the top of the guide connector is connected with the jet ventilation hole, the pipe body and the guide connector are internally inserted with a guide wire for reverse tracheal intubation, and the outer surface of the end of the pipe body away from the guide connector is provided with the air outlet.

[0005] When the guide wire is inserted into the guide tube through the guide joint on the guide tube, the guide wire can smoothly pass through the joint into the guide tube, and the guide wire is convenient to pull, and meanwhile, the guide tube is connected with the oxygen source through the jet vent, so that continuous oxygen supply can be realized during the reverse intubation, the incidence of blood oxygen saturation is reduced, and the practicability of the guide tube is further improved.

[0006] Preferably, the surface of the pipe body is provided with a plurality of air outlet holes, and the inner diameter of the air outlet hole is 0.2-0.5mm.

[0007] The air outlet hole arranged at the head of the guide tube can improve the oxygen flow efficiency and avoid the low oxygen flow rate caused by the insertion of the guide wire.

[0008] Preferably, the inner wall of the guide joint is provided with a sealing ring.

[0009] Preferably, the guide joint is detachably connected with the pipe body through a threaded interface, and the guide joint is provided with a guide interface at the end away from the pipe body.

[0010] Preferably, the pipe body is made of transparent material, and the middle part of the pipe body is provided with a scale line.

[0011] Preferably, the jet vent is obliquely arranged on the guide joint and is provided with an oxygen supply device, and the inner diameter of the jet vent is 2mm.

[0012] Preferably, the scale line is 50cm in size, and color marks are arranged at 20cm, 30cm and 40cm respectively, and the colors are green, yellow and red respectively.

[0013] Preferably, the outer part of the pipe body is provided with a reinforcing layer, the inner part of the pipe body is provided with a wear-resistant layer, and the pipe body, the reinforcing layer and the wear-resistant layer are integrally arranged.

[0014] The reinforcing layer arranged on the outer part of the pipe body can improve the toughness of the pipe body and prevent it from being easily bent and broken, and the wear-resistant layer arranged on the inner part of the pipe body can improve the wear resistance and prevent the guide wire from damaging the inner wall of the pipe body.

[0015] Preferably, the outer surface and the inner surface of the pipe body are both provided with a corrosion-resistant layer.

[0016] Beneficial effects:

[0017] The beneficial effects of the technical scheme of the utility model are as follows:

[0018] (1) In the process of retrograde tracheal intubation through the guide tube, the guide wire can be entered from the guide joint on the guide tube, so that the guide wire can smoothly pass from the tip into the guide tube, and the guide wire is convenient to pull, at the same time, the guide tube is connected with the oxygen source through the jet vent, so that continuous oxygen supply can be realized in the process of retrograde intubation, the incidence of blood oxygen saturation is reduced, and the practicability of the guide tube is further improved.

[0019] (2) By setting the air outlet on the head of the guide tube, the oxygen flow efficiency can be improved, and the low oxygen flow rate caused by the guide wire is avoided.

[0020] (3) By setting the reinforcing sleeve on the outside of the guide tube, the toughness of the tube body can be improved, so that it is not easy to bend and break, and by setting the wear-resistant layer in the tube body, the wear resistance can be improved, and the movement of the guide wire to damage the inner wall of the tube body is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor.

[0022] Fig. 1 is the overall three-dimensional structure schematic diagram of the disposable forward guide tube for retrograde tracheal intubation of the present application;

[0023] Fig. 2 is the connection structure schematic diagram of the front face of the disposable forward guide tube for retrograde tracheal intubation of the present application;

[0024] Fig. 3 is the internal connection structure schematic diagram of the disposable forward guide tube for retrograde tracheal intubation of the present application;

[0025] Fig. 4 is the internal structure schematic diagram of the upper tube body of the disposable forward guide tube for retrograde tracheal intubation of the present application.

[0026] In the figure: 1, tube body; 2, guide joint; 3, air outlet; 4, jet vent; 5, scale; 6, guide interface; 7, guide wire; 8, threaded interface; 9, color identification; 10, reinforcing layer; 11, wear-resistant layer; 12, corrosion-resistant layer; 13, sealing ring. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model below. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but only represents selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the utility model.

[0028] When the reverse tracheal intubation is performed through the guide tube, the guide wire can enter the guide joint on the guide tube, so that the guide wire can smoothly pass from the side and the guide wire is conveniently pulled. Meanwhile, the guide tube is connected with the gas source through the jet ventilation joint, so that continuous oxygen supply can be realized in the process of reverse intubation, the incidence of blood oxygen saturation is reduced, and the practicability of the guide tube is further improved. The specific implementation is as follows:

[0029] As shown in Figs. 1 to 4 A disposable antegrade guide tube for reverse tracheal intubation, comprising a tube body 1, a guide joint 2, an air outlet hole 3 and a jet ventilation hole 4, one end of the tube body 1 is provided with the guide joint 2, the top of the guide joint 2 is connected with the jet ventilation hole 4, the tube body 1 and the guide joint 2 are inserted with a guide wire 7 for reverse tracheal intubation, and the outer surface of the end of the tube body 1 away from the guide joint 2 is provided with the air outlet hole 3. When the reverse tracheal intubation is performed through the guide tube, the guide wire 7 can enter the guide joint 2 on the guide tube, so that the guide wire 7 can smoothly pass from the tip and the guide wire 7 is conveniently pulled. Meanwhile, the guide tube is connected with the gas source through the jet ventilation hole 4, so that continuous oxygen supply can be realized in the process of reverse intubation, the incidence of blood oxygen saturation is reduced, and the practicability of the guide tube is further improved.

[0030] The surface of the tube body 1 is provided with a plurality of air outlet holes 3, and the inner diameter of the air outlet hole 3 is 0.2-0.5mm. By arranging the air outlet hole 3 at the head of the guide tube, the oxygen flow efficiency can be improved, and the low oxygen flow rate caused by the insertion of the guide wire 7 can be avoided.

[0031] The inner wall of the guide joint 2 is provided with a sealing ring 13. By the sealing ring 13, the sealing effect of the tube body 1 can be improved, and gas leakage can be avoided.

[0032] The guide joint 2 is detachably connected with the pipe body 1 through the threaded interface 8, and the guide joint 2 is provided with the guide interface 6 at the end away from the pipe body 1. The guide joint 2 is detachable, which prevents the tracheal tube from being placed in the guide tube due to the excessive diameter of the joint. When the tracheal tube is placed in the guide tube, the joint can be reinstalled

[0033] The pipe body 1 is made of transparent material, and the middle part of the pipe body 1 is provided with the scale line 5. Through the arrangement of the scale line 5, the position of the catheter can be better determined, and the tissue damage caused by the uncertain position can be reduced.

[0034] The jet ventilation hole 4 is obliquely arranged on the guide joint 2 and is provided with an oxygen supply device, and the inner diameter of the jet ventilation hole 4 is 2mm. Through the obliquely arranged jet ventilation hole 4, oxygen can be supplied better.

[0035] The scale line 5 is 50cm in size, and color marks 9 are arranged at 20cm, 30cm and 40cm respectively and are green, yellow and red respectively. Through the color marks 9 and the scale line 5, the position of the guide tube can be determined, and the safety of the pipeline can be improved.

[0036] The pipe body 1 is provided with a reinforcing layer 10 outside and a wear-resistant layer 11 inside, and the pipe body 1, the reinforcing layer 10 and the wear-resistant layer 11 are integrally arranged. Through the reinforcing layer 10 arranged outside the guide tube pipe body 1, the toughness of the pipe body 1 can be improved, so that it is not easy to bend and break. Through the wear-resistant layer 11 arranged inside the pipe body 1, the wear resistance can be improved, and the inner wall of the pipe body 1 can be prevented from being damaged by the movement of the guide wire 7.

[0037] The outer surface and the inner surface of the pipe body 1 are provided with a corrosion-resistant layer 12. Through the corrosion-resistant layer 12, the overall corrosion resistance of the pipe body 1 can be improved, and the pipe body 1 can be prevented from being corroded and damaged during use. At the same time, the whole guide tube is a disposable instrument, which is simple to operate and convenient to use.

[0038] Working principle: when the guide tube is used for retrograde tracheal intubation, the guide wire can enter the guide joint on the guide tube, so that the guide wire can smoothly pass through the tip and be easily pulled. At the same time, the guide tube is connected with the gas source through the ventilation joint, so that continuous oxygen supply can be realized during the retrograde intubation process, the incidence of blood oxygen saturation can be reduced, the practicability of the guide tube can be further improved, the oxygen flow efficiency can be improved through the gas outlet arranged at the head of the guide tube, the oxygen flow rate can be prevented from being low due to the insertion of the guide wire, the pipe body toughness can be improved through the reinforcing sleeve arranged outside the pipe body, so that it is not easy to bend and break, the wear resistance can be improved through the wear-resistant layer arranged inside the pipe body, so that the inner wall of the pipe body can be prevented from being damaged by the movement of the guide wire. At the same time, the whole guide tube is a disposable instrument, which is simple to operate and convenient to use.

[0039] The above merely describes preferred embodiments of the present application and is not intended to limit the present application. The present application can be changed and modified in various ways by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A disposable antegrade guide tube for retrograde tracheal intubation, characterized in that, The utility model provides an improved endotracheal tube, which comprises a tube body (1), a guide joint (2), an air outlet (3) and a jetting air hole (4), wherein the tube body (1) is provided with the guide joint (2) at one end, the top of the guide joint (2) is connected with the jetting air hole (4), the tube body (1) and the guide joint (2) are internally inserted with a guide wire (7) for retrograde endotracheal intubation, and the outer surface of the tube body (1) away from the guide joint (2) is provided with the air outlet (3).

2. A disposable antegrade guiding tube for retrograde tracheal intubation according to claim 1, characterized in that, The surface of the tube body (1) is provided with a plurality of air outlets (3), and the inner diameter of the air outlet (3) is 0.2-0.5mm.

3. The disposable antegrade guiding tube for retrograde tracheal intubation according to claim 1, wherein The inner wall of the guide joint (2) is provided with a sealing ring (13).

4. The disposable antegrade guiding tube for retrograde tracheal intubation according to claim 1, wherein The guide joint (2) is detachably connected with the tube body (1) through a threaded interface (8), and the guide joint (2) is provided with a guide interface (6) away from the tube body (1).

5. The disposable antegrade guiding tube for retrograde tracheal intubation according to claim 1, wherein The tube body (1) is made of transparent material, and the middle part of the tube body (1) is provided with a scale line (5).

6. The disposable antegrade guiding catheter for retrograde tracheal intubation according to claim 1, wherein, The jetting air hole (4) is obliquely arranged on the guide joint (2) and is externally connected with an oxygen supply device, and the inner diameter of the jetting air hole (4) is 2mm.

7. A disposable antegrade guiding tube for retrograde tracheal intubation according to claim 5, characterized in that, The scale line (5) is 50cm in size, and color marks (9) are arranged at 20cm, 30cm and 40cm respectively and are green, yellow and red respectively.

8. The disposable antegrade guiding catheter for retrograde tracheal intubation according to claim 1, wherein, The tube body (1) is provided with a reinforcing layer (10) on the outside and a wear-resistant layer (11) on the inside, and the tube body (1), the reinforcing layer (10) and the wear-resistant layer (11) are integrally arranged.

9. The disposable antegrade guiding catheter for retrograde tracheal intubation according to claim 1, wherein, The outer surface and the inner surface of the tube body (1) are provided with a corrosion-resistant layer (12).

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