Trachea cannula and tube core assembly thereof

Abstract

The utility model relates to a trachea cannula and a cannula core assembly thereof. The trachea cannula comprises a catheter and a tube core assembly, wherein an air bag and an inflation tube communicated with the air bag are arranged on the catheter. The tube core assembly comprises a tube core and an infusion tube, the front portion of the infusion tube is fixed to the front portion of the tube core, the infusion tube is provided with an extending section with the front end extending out of the front end of the tube core, a liquid outlet is formed in the extending section, and the liquid outlet is located in front of the front end of the catheter after the infusion tube is inserted into the catheter in place along with the tube core. The rear end of the infusion tube is used for being connected with an anesthetic conveying device to convey anesthetic. The liquid outlet in the infusion tube is located at the front end of the catheter, anesthetic is sprayed on the tracheal wall in advance when the catheter is inserted, and discomfort, foreign body sensation and pain of catheter insertion of a patient are reduced.

Description

Technical Field

[0001] The utility model relates to the field of endotracheal intubation, in particular to an endotracheal intubation and a tube core component thereof. Background Art

[0002] The use of endotracheal intubation includes patients with severe breathing difficulties, emergency rescue such as suffocation, poisoning, etc., especially in various surgical operations, especially those that require general anesthesia or have a significant impact on respiratory function. The use of endotracheal intubation helps ensure that patients can breathe normally during surgery, and doctors can also better control the airway. Existing endotracheal intubation generally includes a catheter 1 and a tube core 2, such as Figure 1 As shown in FIG. 3 , the catheter adopts a hose, and the core is a soft core with a memory function, that is, the core can be bent into a desired shape as needed. The core is inserted into the catheter so that the catheter follows the shape of the core and maintains the shape, which is convenient for insertion into the human trachea. An air bag 3 is provided on the surface of the insertion end of the catheter 1, and an inflation tube 4 connected to the air bag is provided on the catheter. The inflation tube is used to connect with an air source to inflate and fix the air bag in the human trachea. When in use, the core is bent into a desired shape as needed, and then the core is inserted into the catheter, and the whole is introduced into the human trachea through the oral cavity or nasal cavity. After reaching the position, the air bag is inflated through the inflation tube, and the catheter is fixed and liquid reflux is prevented by squeezing the inflated air bag and the tracheal wall. Then the core is pulled out, and the ventilator is connected to the catheter to ensure the patient's respiratory function.

[0003] The basic process of existing endotracheal intubation technology is that the doctor uses general anesthetics before intubating the patient to ensure that the patient does not feel pain or discomfort and to ensure the normal progress of subsequent operations. However, due to individual differences between patients, the speed of drug metabolism and clearance varies from person to person, the operation time is too long, etc., it often happens that the operation is not completely completed, and the endotracheal tube is still inserted into the patient's trachea, and the patient wakes up. Since the existing endotracheal intubation equipment cannot provide tracheal anesthesia technology, that is, the doctor cannot use anesthesia on the surface of the human trachea, at this time, the catheter inserted into the trachea will cause severe discomfort to the patient, including a strong foreign body sensation, pain, and the hand will subconsciously touch the catheter, thereby affecting the progress and safety of the operation, and having a negative impact on the patient's physiology and psychology. This runs counter to the development trend of the anesthesia discipline towards comfortable medical care.

[0004] Therefore, it is necessary to develop a tracheal intubation that can spray anesthetic drugs on the tracheal wall while inserting the trachea. Utility Model Content

[0005] The purpose of the utility model is to provide a tube core assembly for an endotracheal tube, so as to solve the above problems existing in the prior art; at the same time, the purpose of the utility model is also to provide an endotracheal tube using the tube core assembly.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a tube core assembly for an endotracheal tube, comprising a tube core and an infusion tube, wherein the front portion of the infusion tube is fixed to the front portion of the tube core and the infusion tube has an extended section whose front end extends out of the front end of the tube core, and a liquid outlet is provided on the extended section. After the infusion tube is inserted into the catheter together with the tube core, the liquid outlet is located in front of the front end of the catheter, and the rear end of the infusion tube is used to be connected to the anesthetic delivery device.

[0007] The rear end of the infusion tube is provided with a first tube interface.

[0008] The liquid outlets include at least one group of liquid outlets arranged on the extended section along the length direction of the infusion tube, and each group of liquid outlets includes at least two liquid outlets arranged on the extended section at intervals along the circumferential direction.

[0009] The utility model adopts the following technical scheme: an endotracheal cannula, comprising a catheter and a tube core assembly, wherein an air bag and an inflation tube connected to the air bag are arranged on the catheter, the tube core assembly comprises a tube core, and the tube core assembly also comprises an infusion tube, wherein the front portion of the infusion tube is fixed on the front portion of the tube core and the infusion tube has an extended section whose front end extends out of the front end of the tube core, and a liquid outlet is arranged on the extended section. After the infusion tube is inserted into the catheter together with the tube core and is in place, the liquid outlet is located in front of the front end of the catheter, and the rear end of the infusion tube is used to be connected with an anesthetic delivery device.

[0010] The rear end of the infusion tube is provided with a first tube interface.

[0011] The liquid outlets include at least one group of liquid outlets arranged on the extended section along the length direction of the infusion tube, and each group of liquid outlets includes at least two liquid outlets arranged on the extended section at intervals along the circumferential direction.

[0012] The anesthetic delivery device adopts a first syringe.

[0013] The rear end of the inflation tube is provided with a second tube interface for connecting with an air supply device.

[0014] The gas supply device adopts a second syringe.

[0015] The beneficial effects of the utility model are as follows: when in use, the infusion tube is used to deliver anesthetics. Since the front end of the infusion tube extends out of the front end of the tube core and is also located at the front end of the catheter when in use, and the liquid outlet is located at the front end of the catheter, the anesthetic can be sprayed on the tracheal wall in advance when the catheter is inserted, thereby reducing the patient's discomfort, foreign body sensation and pain caused by the insertion of the catheter. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of an existing endotracheal intubation tube in the background technology of the utility model;

[0017] Figure 2 yes Figure 1 Schematic diagram of the structure of the middle catheter;

[0018] Figure 3 yes Figure 1 A schematic diagram of the structure of the middle tube core;

[0019] Figure 4 It is a structural schematic diagram of an embodiment of an endotracheal cannula of the utility model;

[0020] Figure 5 yes Figure 4 Schematic diagram of the structure of the middle catheter;

[0021] Figure 6 yes Figure 4 A schematic diagram of the structure of the middle tube core assembly;

[0022] Figure 7 yes Figure 4 A partial enlarged view of the middle A;

[0023] Figure 8 yes Figure 6 A partial enlarged view of point B in the middle. DETAILED DESCRIPTION

[0024] In order to facilitate the understanding of the present invention, the present invention is described in more detail below in conjunction with the accompanying drawings and specific embodiments. The accompanying drawings provide preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described in this specification. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0025] It should be noted that, unless otherwise defined, the technical and scientific terms used in this specification have the same meanings as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0026] An embodiment of an endotracheal intubation of the utility model, as Figure 4-Figure 8 As shown, it includes a catheter 1 and a core assembly. The catheter 1 is specifically as Figure 5As shown, the catheter is provided with an air bag 3 and an inflation tube 4 connected to the air bag. The catheter 1 adopts a hose. One end of the catheter is used to connect to a gas supply device such as a ventilator or other gas delivery device, and the other end is inserted into the patient's trachea to supply air to the lungs. In this embodiment, the catheter adopts an existing catheter, and its specific structure and material are not described in detail in this embodiment. The core tube assembly includes a core tube 2 and an infusion tube 6. The core tube also adopts an existing core tube, and its material and structure are not described in detail in this embodiment. The core tube is an auxiliary device used in endotracheal intubation to help insert the catheter into the patient's trachea. The core tube can keep the catheter rigid and in an appropriate shape so that it can enter the trachea more easily. After the catheter is inserted and fixed in the patient's trachea, the core tube is pulled out.

[0027] The infusion tube 6 is used to deliver anesthetics, specifically, Figure 4 and Figure 6 As shown, the front part of the infusion tube 6 is fixed to the front part of the tube core 2, and the fixing can be done by gluing, hot melting, integral molding, bundling, etc. The infusion tube 6 also adopts a soft tube. The infusion tube 6 has an extension section 8 whose front end extends out of the front end of the tube core. In this embodiment, the front end refers to the end inserted into the trachea as the front end, which is reflected in the attached Figure 4 and 6 In: The direction "front end of the infusion tube" is attached Figure 4 and 6 The "left end of the infusion tube" and "front end of the tube core" are the attached Figure 4 and 6 The direction in this embodiment is only for the purpose of more conveniently and clearly introducing the structure of the endotracheal tube, and does not constitute a limitation on its protection and use.

[0028] The extension section 8 is provided with a liquid outlet 9, which includes at least one group of liquid outlets arranged on the extension section along the length direction of the infusion tube, and each group of liquid outlets includes at least two liquid outlets arranged on the extension section at intervals along the circumferential direction. Specifically, in this embodiment, the number of groups of liquid outlets is 2, and the number of infusion outlets in each group is 3 and is evenly spaced along the circumferential direction, so that the anesthetic is sprayed evenly. After the infusion tube 6 is inserted into the catheter 1 together with the tube core 2, the liquid outlet 9 is located in front of the front end of the catheter 4, ensuring that the anesthetic is sprayed on the tracheal wall in advance when the catheter is inserted, reducing the patient's discomfort, foreign body sensation and pain caused by the insertion of the catheter. The rear end of the infusion tube 6 is used to connect with the anesthetic delivery device. In this embodiment, the rear end of the infusion tube 6 is provided with a first pipe interface 7, and the anesthetic delivery device can use a first syringe. When in use, the first syringe is filled with anesthetic, and the anesthetic is pushed into the infusion tube by the first syringe. The rear end of the inflation tube 4 is provided with a second pipe interface 5 for connecting with the air supply device. Specifically, the gas supply device can be a second syringe or a micro air pump. The size of the airbag is controlled by the amount of gas injected, thereby ensuring the sealing between the airbag and the trachea, reducing air leakage and preventing foreign matter from entering the trachea, and ensuring that the gas provided by the ventilator and other gas supply devices effectively reaches the lungs. In addition, by inflating the airbag, the doctor can also adjust the position and fixation of the catheter to ensure that the intubation is in the correct position and will not move accidentally.

[0029] When in use, first bend the tube core into the required shape. Since the front end of the tube core and the front end of the infusion tube are fixed together, the tube core and the infusion tube are inserted into the catheter as a whole during installation. After being inserted into place, the front end of the tube core is located inside the catheter, that is, it does not leak out of the catheter, and the front end of the infusion tube and the liquid outlet on it are all exposed in front of the catheter. After the endotracheal tube is assembled, Figure 4 As shown. Connect the inflation tube and the air supply device, as well as the infusion tube and the anesthetic delivery device. Insert the front end of the endotracheal tube into the trachea through the patient's nasal cavity or oral cavity. During the insertion process, the anesthetic delivery device continuously administers the drug, so that the front of the catheter is constantly spraying anesthetics to anesthetize the tracheal wall. After the insertion is in place, the air bag is inflated through the air supply device, and the position of the air bag is fixed by the force between the air bag and the tracheal wall to keep the position of the catheter stable. Finally, pull out the core assembly, that is, pull out the core and the infusion tube on it.

[0030] The terms "first" or "second" and the like used in this specification to refer to numbers or ordinals are used for descriptive purposes only and are not to be understood as explicitly or implicitly indicating relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this specification, "plurality" means at least two, such as two, three or more, etc., unless otherwise clearly and specifically defined.

[0031] The embodiment of the tube core assembly of an endotracheal cannula of the present invention has the same structure as the tube core assembly in each embodiment of the endotracheal cannula described above, and will not be described in detail herein.

Claims

1. A core assembly for an endotracheal tube, comprising a core, characterized in that: It also includes an infusion tube, the front part of which is fixed on the front part of the tube core and the infusion tube has an extended section with a front end extending out of the front end of the tube core, and a liquid outlet is provided on the extended section. After the infusion tube is inserted into the catheter together with the tube core, the liquid outlet is located in front of the front end of the catheter, and the rear end of the infusion tube is used to be connected to the anesthetic delivery device.

2. The endotracheal tube core assembly according to claim 1, characterized in that: The rear end of the infusion tube is provided with a first tube interface.

3. The core assembly of the endotracheal tube according to claim 1, characterized in that: The liquid outlets include at least one group of liquid outlets arranged on the extended section along the length direction of the infusion tube, and each group of liquid outlets includes at least two liquid outlets arranged on the extended section at intervals along the circumferential direction.

4. An endotracheal intubation tube, comprising a catheter and a core assembly, wherein the catheter is provided with an air bag and an inflation tube connected to the air bag, and the core assembly comprises a core, characterized in that: The tube core assembly also includes an infusion tube, the front part of which is fixed on the front part of the tube core and the infusion tube has an extended section whose front end extends out of the front end of the tube core, and a liquid outlet is provided on the extended section. After the infusion tube is inserted into the catheter together with the tube core, the liquid outlet is located in front of the front end of the catheter, and the rear end of the infusion tube is used to be connected to the anesthetic delivery device.

5. The endotracheal tube according to claim 4, characterized in that: The rear end of the infusion tube is provided with a first tube interface.

6. The endotracheal tube according to claim 4, characterized in that: The liquid outlets include at least one group of liquid outlets arranged on the extended section along the length direction of the infusion tube, and each group of liquid outlets includes at least two liquid outlets arranged on the extended section at intervals along the circumferential direction.

7. The endotracheal tube according to claim 4, characterized in that: The anesthetic delivery device adopts a first syringe.

8. The endotracheal tube according to claim 4, characterized in that: The rear end of the inflation tube is provided with a second tube interface for connecting with an air supply device.

9. The endotracheal tube according to claim 8, characterized in that: The gas supply device adopts a second syringe.

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