Tracheal catheter and using method thereof

Abstract

The invention discloses a tracheal catheter and a using method thereof, and relates to the technical field of medical instruments, the tracheal catheter comprises a catheter body, a gas cuff and a liquid cuff, and a channel for ventilation is constructed in the catheter body; the catheter body is sleeved with the air sleeve bag, and the air sleeve bag is communicated with an inflation and exhaust pipe. When the liquid sleeve bag is in a liquid filling state, a medicine cavity is formed between the inner wall of the liquid sleeve bag and the outer wall of the air sleeve bag; the medicine cavity is communicated with a medicine filling and discharging pipe, a plurality of liquid passing holes are formed in the liquid sleeve bag, each liquid passing hole has a contraction state and an expansion state, and when the pressure of liquid in the medicine cavity is smaller than a first pressure value, the liquid passing holes are in the contraction state; when the liquid pressure in the medicine cavity is not smaller than the first pressure value, the liquid passing hole is in an expanded state. According to the tracheal catheter, medicine can be administrated to the tracheal tissue surface of a patient under the condition that the tracheal catheter is not pulled out, liquid medicine can be anesthetic or other liquid medicine, then damage to the airway mucosa of the patient can be weakened, discomfort and stress reaction are relieved, and smooth operation is facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a tracheal tube and a method for using the same. Background Art

[0002] A tracheal tube is a medical product that is inserted into the patient's trachea and / or bronchus to create a temporary artificial breathing channel for the patient, especially for those who cannot breathe independently. It is usually fixed with an air bag. The air bag compresses the human tracheal mucosa for a long time, which can easily cause swelling of the tracheal tissue surface, causing discomfort to the patient, especially when the tube is removed. Based on this, a new solution is urgently needed to solve the above problems. Summary of the invention

[0003] The purpose of the present invention is to provide a tracheal tube and a method of using the same, so as to solve the problems existing in the above-mentioned prior art, facilitate smooth operation and enhance the patient's treatment experience.

[0004] To achieve the above object, the present invention provides the following solutions:

[0005] The present invention provides a tracheal tube, comprising:

[0006] a catheter body having a channel for ventilation configured therein;

[0007] An air cuff, the air cuff is sleeved on the catheter body, and the air cuff is connected to an inflation and exhaust pipe;

[0008] A liquid cuff, wherein the liquid cuff is sleeved outside the air cuff, and when the liquid cuff is in a liquid-filled state, a medicine cavity is formed between the inner wall of the liquid cuff and the outer wall of the air cuff; the medicine cavity is connected to a medicine filling and discharging tube, and the liquid cuff has a plurality of liquid holes, and the liquid holes have a contracted state and an expanded state. When the liquid pressure in the medicine cavity is less than a first pressure value, the liquid holes are in a contracted state; when the liquid pressure in the medicine cavity is not less than the first pressure value, the liquid holes are in an expanded state.

[0009] Preferably, the liquid cuff is made of a flexible film, and the liquid holes are evenly arranged on the liquid cuff.

[0010] Preferably, when the liquid pressure in the medicine cavity is not less than the first pressure value, the outer surface of the liquid cuff is uneven, and the concave part of the surface of the liquid cuff forms a liquid storage cavity with the tracheal tissue surface.

[0011] Preferably, a miniature camera is provided at the distal end or a portion close to the distal end of the catheter body.

[0012] Preferably, the liquid-passing holes partially in the expanded state face both sides of the axial direction of the liquid cuff.

[0013] The present invention also provides a method for using a tracheal tube, comprising:

[0014] Methods of fixing the trachea:

[0015] Step 1: Insert the endotracheal tube into the trachea;

[0016] Step 2: Inflate the air cuff to the set air pressure value;

[0017] Dosage:

[0018] Step 1, releasing part or all of the gas in the air cuff;

[0019] Step 2, filling the medicine cavity with liquid medicine and making it not less than the first pressure value for a period of time;

[0020] Step 3, discharging the remaining liquid medicine in the medicine cavity;

[0021] Step 4: Inflate the air cuff to the set pressure value.

[0022] Preferably, in step 2 of the drug administration method, after the drug cavity is filled with drug liquid, air is inflated into the air cuff to maintain the pressure value of the drug liquid in the drug cavity to be no less than the first pressure value.

[0023] Preferably, in step three of the drug administration method, the remaining drug solution in the drug cavity can be discharged from the liquid passage hole by inflating the air cuff.

[0024] Preferably, some of the liquid holes in the expanded state face both sides of the axial direction of the liquid cuff; in step 2 of the drug administration method, the drug cavity is filled with drug liquid and the pressure is not less than a second pressure value, and the drug liquid at the second pressure value can be ejected from the liquid holes.

[0025] Compared with the prior art, the present invention has achieved the following technical effects:

[0026] The present invention can deliver medication to the patient's tracheal tissue surface without removing the tracheal tube. The drug solution can be an anesthetic or other drug solution, thereby reducing damage to the patient's airway mucosa, alleviating discomfort and stress response, facilitating smooth surgery, and reducing the incidence of hemodynamic fluctuations during tube removal. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 A schematic diagram of the structure of an endotracheal tube provided in an embodiment of the present invention;

[0029] Figure 2 This is a schematic diagram of the structure of part of the fluid cuff and the tracheal tissue surface in the expanded state;

[0030] Figure 3 Another structural schematic diagram of a part of the fluid cuff and the tracheal tissue surface in the expanded state;

[0031] In the figure: 1-catheter body; 2-liquid cuff; 3-air cuff; 4-drug cavity; 5-drug filling and discharge tube; 6-air filling and discharge tube; 7-tracheal tissue surface; 8-liquid storage cavity. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0034] Combine the following Figures 1 to 3 , describing an embodiment of the present invention.

[0035] The present invention provides a tracheal tube, such as Figure 1 As shown, it includes: a catheter body 1, an air cuff 3 and a liquid cuff 2.

[0036] The catheter body 1 can be a double-branch catheter or a single-branch catheter, and a channel for ventilation is constructed in the catheter body 1; the air cuff 3 is sleeved on the catheter body 1, and the air cuff 3 is connected to an inflation and exhaust pipe 6; the liquid cuff 2 is sleeved outside the air cuff 3, and when the liquid cuff 2 is in a liquid-filled state, a medicine cavity 4 is formed between its inner wall and the outer wall of the air cuff 3; the medicine cavity 4 is connected to a medicine filling and exhaust pipe 5, and the liquid cuff 2 has a plurality of liquid holes, and the liquid holes have a contraction state and an expansion state. When the liquid pressure in the medicine cavity 4 is less than a first pressure value, the liquid holes are in a contraction state; when the liquid pressure in the medicine cavity 4 is not less than the first pressure value, the liquid holes are in an expansion state.

[0037] The present invention can administer medication to the patient's tracheal tissue surface 7 without removing the tracheal tube. The medication can be an anesthetic or other medication, thereby reducing the patient's discomfort and stress response, which is beneficial for smooth surgery.

[0038] It is explained that an air cavity is formed between the inner wall of the air cuff 3 and the outer wall of the catheter body 1, and the air cavity is connected to the inflation and exhaust pipe 6. The liquid cuff 2 is made of a flexible film, and the flexible film must have a certain elasticity. When the liquid pressure is lower than the first pressure value, the flexible film shrinks and closes the liquid hole due to the rebound of its own material. When the pressure is greater than or equal to the first pressure value, the elastic force of the material is overcome and the liquid hole expands and opens.

[0039] When in use, the tracheal tube is first inserted into the trachea, and then the air cuff 3 is inflated to the set air pressure value. At this time, the catheter body 1 is fixed in the trachea. During the operation, when it is found that the patient's tracheal tissue surface 7 is red and swollen or the patient expresses discomfort, part or all of the gas in the air cuff 3 is released; then the medicine cavity 4 is filled with liquid medicine and the pressure is not less than the first pressure value. After a period of time, when the patient is relieved, the remaining liquid medicine in the medicine cavity 4 can be discharged, and then the air cuff 3 is inflated again to the set air pressure value to fix the tracheal tube.

[0040] In some embodiments, the air filling and exhaust pipe 6 and the medicine filling and exhaust pipe 5 can pass through the channel inside the catheter body, or pass through the outside of the catheter body, or can even be constructed inside the wall of the catheter body, that is, the air filling and exhaust pipe 6 and the medicine filling and exhaust pipe 5 are constructed between the inner wall and the outer wall of the catheter body.

[0041] In some embodiments, the liquid cuff 2 is evenly provided with liquid holes.

[0042] This embodiment can make the liquid medicine flow out evenly from the surface of the liquid cuff 2, so that the tracheal tissue surface 7 can evenly contact the liquid medicine, thereby improving the drug administration effect. Of course, liquid holes can also be opened on part of the liquid cuff 2 according to needs.

[0043] In some embodiments, such as Figure 2-Figure 3 As shown, when the liquid pressure in the medicine cavity 4 is not less than the first pressure value, the outer surface of the liquid cuff 2 is uneven, and the concave part of the surface of the liquid cuff 2 forms a liquid storage cavity 8 with the tracheal tissue surface 7.

[0044] In this embodiment, by providing an uneven surface, it is possible to avoid the liquid cuff 2 being in close contact with the tracheal tissue surface 7, which would cause the tracheal tissue surface 7 to block the liquid hole, and the formed liquid storage cavity 8 can allow the drug solution to be temporarily retained on the tracheal tissue surface 7 to avoid its loss. In other words, this embodiment can slow down the flow rate of the drug solution on the tracheal tissue surface 7, thereby improving the drug administration effect.

[0045] The above-mentioned unevenness may be corrugated unevenness or pit-shaped unevenness, which will not be limited here.

[0046] In some embodiments, a micro camera is disposed at the distal end or a portion close to the distal end of the catheter body 1 .

[0047] The product provided in this embodiment can be called a visual endotracheal tube. The micro camera can capture images or videos and transmit them to an external computer monitor for display. The specific micro camera can transmit electricity or image information through optical fibers or wires running through the catheter body 1. In addition, in other embodiments, the micro camera can have a built-in power supply.

[0048] In some embodiments, some of the liquid-passing holes in the expanded state face both sides of the axial direction of the liquid cuff 2 .

[0049] When the endotracheal catheter provided in this embodiment is used, in the initial stage of drug administration, the drug cavity 4 can be filled with drug liquid and the pressure can be not less than the second pressure value. The drug liquid at the second pressure value can be ejected from the liquid holes, so that the drug liquid can be ejected from the liquid holes on both sides of the liquid cuff 2 to the tracheal tissue surfaces 7 on both sides of the air cuff 3, thereby increasing the drug administration range. After 1 to 3 seconds of injection, the pressure in the drug cavity 4 can be reduced to the first pressure value or lower than the first pressure value.

[0050] The present invention also provides a method for using a tracheal tube, comprising:

[0051] Methods of fixing the trachea:

[0052] Step 1: Insert the endotracheal tube into the trachea;

[0053] Step 2, inflate the air cuff 3 to the set air pressure value;

[0054] Dosage:

[0055] Step 1: releasing part or all of the gas in the air cuff 3;

[0056] Step 2, filling the medicine cavity 4 with liquid medicine and making it not less than the first pressure value for a period of time;

[0057] Step 3: discharge the remaining liquid medicine in the medicine cavity 4;

[0058] Step 4: Inflate the air cuff 3 to the set air pressure value.

[0059] This embodiment adopts the endotracheal tube provided in the above embodiment, so this embodiment has all the advantages of the above embodiment, which will not be described in detail here.

[0060] In some embodiments, in step 2 of the drug administration method, after the drug cavity 4 is filled with drug solution, the air cuff 3 is inflated to maintain the pressure of the drug solution in the drug cavity 4 to be no less than the first pressure value.

[0061] This embodiment helps to save the amount of liquid medicine used, while still achieving the purpose of drug administration.

[0062] In some embodiments, in step 3 of the drug administration method, the remaining drug solution in the drug cavity 4 can be discharged from the liquid passage hole by inflating the air cuff 3 .

[0063] This embodiment helps to fully utilize the liquid medicine in the liquid cuff 2 .

[0064] Note: The connection method of the above-mentioned liquid cuff 2 and air bag with the catheter body 1 can be adopted by mature existing technology. The present invention does not make any improvement on this and will not be described in detail here.

[0065] In some embodiments, some of the liquid holes in the expanded state face both sides of the axial direction of the liquid cuff 2; in step 2 of the drug administration method, the drug cavity 4 is filled with drug liquid and the pressure is not less than the second pressure value, and the drug liquid at the second pressure value can be ejected from the liquid holes.

[0066] It should be noted that the first pressure value and the second pressure value need to be determined based on experiments and do not have a fixed value. The values ​​are related to the type of flexible film used.

[0067] The flexible films described in any of the above embodiments are all medical films.

[0068] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A tracheal tube, characterized in that: include: a catheter body having a channel for ventilation configured therein; An air cuff, the air cuff is sleeved on the catheter body, and the air cuff is connected to an inflation and exhaust pipe; A liquid cuff, wherein the liquid cuff is sleeved outside the air cuff, and when the liquid cuff is in a liquid-filled state, a medicine cavity is formed between the inner wall of the liquid cuff and the outer wall of the air cuff; the medicine cavity is connected to a medicine filling and discharging tube, and the liquid cuff has a plurality of liquid holes, and the liquid holes have a contracted state and an expanded state. When the liquid pressure in the medicine cavity is less than a first pressure value, the liquid holes are in a contracted state; when the liquid pressure in the medicine cavity is not less than the first pressure value, the liquid holes are in an expanded state.

2. The endotracheal tube according to claim 1, characterized in that: The liquid cuff is made of a flexible film, and the liquid holes are evenly arranged on the liquid cuff.

3. The endotracheal tube according to claim 1, characterized in that: When the liquid pressure in the medicine cavity is not less than the first pressure value, the outer surface of the liquid cuff is uneven, and the concave part of the liquid cuff surface forms a liquid storage cavity with the tracheal tissue surface.

4. The endotracheal tube according to claim 1, characterized in that: A miniature camera is arranged at the distal end of the catheter body or at a position close to the distal end.

5. The endotracheal tube according to claim 1, characterized in that: The liquid-passing holes partially in the expanded state face both sides of the axial direction of the liquid cuff.

6. A method for using a tracheal tube, characterized in that: include: Methods of fixing the trachea: Step 1: Insert the endotracheal tube into the trachea; Step 2: Inflate the air cuff to the set air pressure value; Dosage: Step 1, releasing part or all of the gas in the air cuff; Step 2, filling the medicine cavity with liquid medicine and making it not less than the first pressure value for a period of time; Step 3, discharging the remaining liquid medicine in the medicine cavity; Step 4: Inflate the air cuff to the set pressure value.

7. The method for using the endotracheal tube according to claim 6, characterized in that: In step 2 of the drug administration method, after the drug cavity is filled with drug liquid, air is inflated into the air cuff to maintain the pressure value of the drug liquid in the drug cavity not less than the first pressure value.

8. The method for using the endotracheal tube according to claim 6, characterized in that: In step three of the drug administration method, the remaining drug solution in the drug cavity can be discharged from the liquid passage hole by inflating the air cuff.

9. The method for using the endotracheal tube according to claim 6, characterized in that: The liquid holes in the expanded state are partially oriented toward both sides of the axial direction of the liquid cuff; in step 2 of the drug administration method, the drug cavity is filled with liquid and the pressure is not less than a second pressure value, and the liquid at the second pressure value can be ejected from the liquid holes.

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