Tracheal catheter
By setting up an independent drug delivery component and sustained-release drug system in the endotracheal tube, the problems of mucosal damage and inflammatory response caused by long-term endotracheal tube placement are solved, continuous treatment and emergency drug delivery are achieved for endotracheal intubated patients, and the treatment effect and safety are improved.
Patent Information
- Application Number
- CN202511067772.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-31
- Publication Date
- 2025-09-26
AI Technical Summary
The long-term indwelling of existing endotracheal tubes can easily lead to complications such as airway mucosal damage and inflammatory reactions, and it is difficult to administer medication in a timely manner for sudden symptoms.
A tracheal tube is designed, comprising a tube body, an inflation component, a first drug delivery component, and a second drug delivery component. It is equipped with an independent drug delivery channel and a sustained-release drug system, combining slow continuous drug delivery with on-demand immediate drug delivery. Multiple micro-holes and check valves are used to ensure uniform drug distribution and safety.
It achieves continuous treatment and emergency supplementation of local mucosal inflammation and allergic reactions in patients with endotracheal tubes, improves the treatment effect, reduces the risk of complications, and enhances the safety and reliability of drug administration.
Smart Images
Figure CN120695321A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of medical technology, in particular to a tracheal tube. Background Art
[0002] The endotracheal tube is a key device for establishing an artificial airway during clinical anesthesia, emergency resuscitation, and respiratory support. Its primary function is to maintain airway patency and ensure gas exchange. However, long-term indwelling of the endotracheal tube can easily lead to a series of complications, such as airway mucosal damage, inflammatory response, and laryngeal spasm. These complications not only increase patient suffering, but may also prolong hospitalization and increase treatment costs.
[0003] In the prior art, although there are measures for slow drug administration to fight inflammation, timely administration is required for specific diseases to alleviate the patient's symptoms. Summary of the Invention
[0004] The technical problem to be solved by the present invention is to provide a tracheal tube that can maintain a general anti-inflammatory effect and can also administer medication on demand for timely treatment of sudden or special symptoms.
[0005] The present invention provides a technical solution for solving the above-mentioned technical problem as follows: a tracheal catheter comprising a catheter body, an inflation component, a first drug delivery component, and a second drug delivery component; an inflation port, a first drug delivery port, and a second drug delivery cavity are provided at intervals on one end of the catheter body; the inflation component, the first drug delivery component, and the second drug delivery component are all connected to the catheter body; one end of the inflation component is in communication with the inflation port, one end of the first drug delivery component is in communication with the first drug delivery port, and the second drug delivery component is in communication with the second drug delivery cavity.
[0006] The beneficial effects of the present invention are: by providing a catheter body, an inflation component, a first drug delivery component and a second drug delivery component, in addition to ensuring the establishment of an effective artificial airway, two independent drug delivery components are also provided, which can not only ensure slow and continuous drug delivery for anti-inflammatory or allergic reactions, but also provide on-demand precise drug delivery and timely treatment according to sudden symptoms or special symptoms, taking into account both continuous treatment and emergency supplementation, and improving the treatment effect of local mucosal inflammation and allergic reactions in patients with long-term endotracheal intubation.
[0007] On the basis of the above technical solution, the present invention can also be improved as follows.
[0008] Furthermore, the first drug delivery component includes a first drug delivery tube, at least a portion of which is embedded in the tube wall of the catheter body, one end of the first drug delivery tube is connected to the first drug delivery port, and the other end of the first drug delivery tube is provided with a first drug addition port.
[0009] The beneficial effects of adopting the above-mentioned further scheme are: the first drug-dosing tube is partially embedded in the wall of the catheter body, thereby forming an independent drug-dosing channel, making the overall structure more compact; the setting of the first drug-dosing port provides clinical medical staff with an external drug-dosing channel, which facilitates the delivery of drugs to the first drug-dosing port through the channel, realizing on-demand instant drug administration, meeting clinical emergency treatment needs, and being easy to operate and highly targeted.
[0010] Furthermore, a check valve is provided at the first dosing port.
[0011] The beneficial effects of adopting the above further scheme are: the check valve at the first dosing port can effectively prevent the injected drug from flowing back from the dosing port, ensuring the accuracy of the drug dosage; at the same time, it prevents external air and pollutants from entering the drug delivery channel through the dosing port, reducing the risk of drug contamination and airway infection, and improving the safety and reliability of the drug delivery process.
[0012] Furthermore, the first drug delivery port includes a plurality of micro holes, and the plurality of micro holes are arranged at intervals on the outer wall of the catheter body.
[0013] The beneficial effect of adopting the above further scheme is that the first drug delivery port adopts multiple micro-holes spaced apart on the outer wall of the catheter body, which can release the drug in a dispersed and atomized form through the multiple micro-holes, increase the contact area between the drug and the local mucosa, improve the uniformity of drug distribution, and enhance the local therapeutic effect.
[0014] Furthermore, the inflation component includes an inflation tube, an airbag and an indicator ball. The airbag is sleeved on one end of the catheter body and connected to the inflation port. At least a portion of the inflation tube is embedded in the tube wall of the catheter body. One end of the inflation tube is connected to the inflation port, and the other end of the inflation tube is connected to one end of the indicator ball. The other end of the indicator ball is provided with an inflation port.
[0015] The beneficial effects of adopting the above-mentioned further scheme are: the inflation component fixes the catheter body in the airway through inflation of the airbag to prevent the catheter body from shifting; at the same time, after the airbag is inflated, the patient's wound can be sealed to enhance the closure of the airway; and the indicator ball can intuitively display the inflation status of the airbag, which is convenient for medical staff to judge whether the inflation is appropriate, improve the safety and stability of the intubation operation, and ensure the patency of the airway.
[0016] Furthermore, the second drug delivery component includes a second drug delivery tube, a drug release cuff and a drug storage bag. The drug release cuff is arranged on the outside of the airbag, and the interlayer cavity formed between the drug release cuff and the airbag forms the second drug delivery cavity. At least a portion of the second drug delivery tube is embedded in the tube wall of the catheter body. One end of the second drug delivery tube is connected to the second drug delivery cavity, and the other end of the second drug delivery tube is detachably connected to the drug storage bag.
[0017] The beneficial effects of adopting the above further scheme are: in the second drug delivery component, the drug release cuff is arranged on the outside of the airbag, and the drug release cuff and the interlayer of the airbag form a second drug delivery cavity, and the position of the airbag can be used to make the sustained-release drug act directly on the target mucosal area; the drug storage bag and the second drug delivery tube are detachably connected, which is convenient for pre-loading or replacing drugs, extending the continuous drug delivery time, and solving the problem of limited duration of the anti-allergic effect of existing catheters.
[0018] Furthermore, a check valve is provided at the air pumping port.
[0019] The beneficial effects of adopting the above-mentioned further scheme are: the check valve at the inflation port can prevent the gas in the airbag from leaking, ensure that the airbag continues to maintain a stable filling state, maintain the fixing effect of the catheter body in the airway, avoid problems such as displacement of the catheter body and failure of airway sealing due to gas leakage, and improve the stability and safety during intubation.
[0020] Furthermore, the catheter body is made of medical-grade PU material, and its outer wall is coated with PTFE coating.
[0021] The beneficial effects of adopting the above-mentioned further scheme are: the catheter body is made of medical-grade PU material to reduce irritation or allergic reactions to the airway mucosa caused by long-term contact; the outer wall is coated with PTFE coating, which can reduce the friction coefficient of the catheter surface and reduce damage to the mucosa during intubation, while inhibiting bacterial attachment, reducing the risk of infection, and further alleviating local mucosal inflammation caused by long-term intubation.
[0022] Furthermore, support ribs are provided inside the tube wall of the catheter body.
[0023] The beneficial effects of adopting the above-mentioned further scheme are: the support ribs inside the tube wall of the catheter body can enhance the structural strength and anti-collapse ability of the catheter, preventing the catheter body from being deformed and blocking the airway due to external force during intubation or when the patient's position changes, thereby ensuring the patency of the airway; at the same time, maintaining the morphological stability of the catheter body, facilitating precise insertion into the target position, and improving reliability of use.
[0024] Furthermore, the support ribs are spirally arranged from one end of the catheter body to the other end.
[0025] The beneficial effects of adopting the above-mentioned further scheme are: the spirally arranged support ribs can evenly distribute the supporting force along the axial direction of the catheter body, while enhancing the strength of the tube wall, maintaining the overall flexibility and bendability of the catheter, making it easy to adjust the intubation angle according to the airway anatomical structure and reduce mechanical damage to the airway during intubation; the spiral structure can also disperse external forces, further reducing the risk of local collapse, and taking into account both structural strength and flexibility of use. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1is a schematic diagram of an endotracheal tube according to the present invention; Figure 2 This is a partial enlarged view of the first drug delivery port of the endotracheal tube of the present invention.
[0027] In the accompanying drawings, the components represented by the reference numerals are as follows: 10. Catheter body; 11. Ventilation interface; 12. Support rib; 20. First drug delivery tube; 21. First drug delivery port; 22. First drug addition port; 30. Inflation tube; 31. Air bag; 32. Indicator ball; 33. Inflation port; 34. Inflating port; 40. Second drug delivery tube; 41. Drug release cuff; 42. Drug storage bag; 43. Second drug release cavity. DETAILED DESCRIPTION
[0028] The principles and features of the present invention are described below. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.
[0029] like Figure 1-Figure 2 As shown, a tracheal catheter includes a catheter body 10, an inflation component, a first drug delivery component and a second drug delivery component. One end of the catheter body 10 is provided with an inflation port 33, a first drug delivery port 21 and a second drug release cavity 43 at intervals. The inflation component, the first drug delivery component and the second drug delivery component are all connected to the catheter body 10. One end of the inflation component is in communication with the inflation port 33, one end of the first drug delivery component is in communication with the first drug delivery port 21, and the second drug delivery component is in communication with the second drug release cavity 43.
[0030] By providing the catheter body 10, the inflation component, the first drug delivery component and the second drug delivery component, in addition to ensuring the establishment of an effective artificial airway, two independent drug delivery components are also provided, which can not only ensure slow and continuous drug delivery for anti-inflammatory or allergic reactions, but also provide precise drug delivery and timely treatment as needed according to sudden symptoms or special symptoms, taking into account both continuous treatment and emergency supplementation, thereby improving the treatment effect of local mucosal inflammation and allergic reactions in patients with long-term endotracheal intubation.
[0031] Specifically, a ventilation interface 11 is provided at the other end of the catheter body 10 , and the ventilation interface 11 is connected to a ventilation device to establish an effective artificial airway.
[0032] Specifically, the inflation component, the first drug-delivery component, and the second drug-delivery component all form independent channels.
[0033] Based on the above technical solution, the first drug delivery component includes a first drug delivery tube 20, at least part of which is embedded in the tube wall of the catheter body 10, one end of the first drug delivery tube 20 is connected to the first drug delivery port 21, and the other end of the first drug delivery tube 20 is provided with a first drug addition port 22.
[0034] The first drug-dosing tube 20 is partially embedded in the wall of the catheter body 10, thereby forming an independent drug-dosing channel, making the overall structure more compact; the setting of the first drug-dosing port 22 provides clinical medical staff with an external drug-dosing channel, which facilitates the delivery of drugs to the first drug-dosing port 21 through the channel, realizing on-demand instant drug administration, meeting clinical emergency treatment needs, and being easy to operate and highly targeted.
[0035] On the basis of the above technical solution, a check valve is provided at the first dosing port 22 .
[0036] The check valve at the first dosing port 22 can effectively prevent the injected drug from flowing back from the dosing port, ensuring the accuracy of the drug dosage; at the same time, it prevents external air and pollutants from entering the drug delivery channel through the dosing port, reducing the risk of drug contamination and airway infection, and improving the safety and reliability of the drug delivery process.
[0037] Specifically, the first drug addition port 22 is also provided with a Luer connector. As a standardized medical device interface, the Luer connector can be easily connected to a syringe, making it convenient for medical staff to perform drug administration and other operations. At the same time, the Luer connector can be firmly connected to the catheter body 10 to avoid drug leakage or device detachment due to loose connection during the drug administration process, thereby ensuring the smooth progress of the drug administration process.
[0038] Specifically, a Luer connector and a check valve are sequentially provided at the other end of the first dosing tube 20. The Luer connector provides a flexible connection method, allowing the syringe to be easily connected to and removed from the first dosing tube 20, while the check valve is located near the Luer connector to prevent the injected liquid from flowing back. The provision of the Luer connector and the check valve further ensures the safety and reliability of injecting the liquid through the first dosing port 22.
[0039] On the basis of the above technical solution, the first drug delivery port 21 includes a plurality of micro holes, and the plurality of micro holes are arranged at intervals on the outer wall of the catheter body 10 .
[0040] The first drug delivery port 21 uses a plurality of micro-holes spaced apart along the outer wall of the catheter body 10, which can release the drug in a dispersed and atomized form through the plurality of micro-holes, thereby increasing the contact area between the drug and the local mucosa, improving the uniformity of drug distribution, and enhancing the local therapeutic effect.
[0041] In one specific example, the micropores have a diameter of 10 μm. When a patient experiences sudden symptoms and requires local medication, they connect a syringe containing the appropriate medication to first medication inlet 22. The syringe is then pushed, and the medication is delivered through first medication tube 20 to first medication inlet 21. The medication is then atomized and sprayed onto the surrounding inner wall through the multiple micropores. These multiple micropores allow the medication to be released in a dispersed, atomized form, increasing the contact area between the medication and the local mucosa, improving drug distribution uniformity, and enhancing the local therapeutic effect.
[0042] Based on the above technical solution, the inflation component includes an inflation tube 30, an airbag 31 and an indicator ball 32. The airbag 31 is sleeved on one end of the catheter body 10 and connected to the inflation port 33. At least part of the inflation tube 30 is embedded in the tube wall of the catheter body 10. One end of the inflation tube 30 is connected to the inflation port 33, and the other end of the inflation tube 30 is connected to one end of the indicator ball 32. The other end of the indicator ball 32 is provided with an air inlet 34.
[0043] The inflation component fixes the catheter body 10 in the airway by inflating the airbag 31 to prevent the catheter body 10 from shifting; at the same time, after the airbag 31 is inflated, it can also seal the patient's wound to enhance the sealing of the airway; and the indicator ball 32 can intuitively display the inflation status of the airbag 31, such as the degree of filling, to facilitate medical staff to judge whether the inflation is appropriate, improve the safety and stability of the intubation operation, and ensure the patency of the airway.
[0044] On the basis of the above technical solution, the second drug delivery component includes a second drug delivery tube 40, a drug release cuff 41 and a drug storage bag 42. The drug release cuff 41 is sleeved on the outside of the airbag 31. The interlayer cavity formed between the drug release cuff 41 and the airbag 31 forms the second drug delivery cavity 43. At least part of the second drug delivery tube 40 is embedded in the tube wall of the catheter body 10. One end of the second drug delivery tube 40 is connected to the second drug delivery cavity 43, and the other end of the second drug delivery tube 40 is detachably connected to the drug storage bag 42.
[0045] In the second drug delivery component, the drug release cuff 41 is sleeved on the outside of the airbag 31, and the interlayer between the drug release cuff 41 and the airbag 31 forms a second drug delivery cavity 43. The position of the airbag 31 can be used to allow the sustained-release drug to act directly on the target mucosal area; the drug storage bag 42 is detachably connected to the second drug delivery tube 40, which is convenient for pre-loading or replacing drugs, extending the continuous drug delivery time, and solving the problem of limited duration of the anti-allergic effect of existing catheters.
[0046] In a specific example, the drug in the drug-releasing cuff 41 has a release cycle of 15 days. After a release cycle is completed, a new drug storage capsule 42 can be replaced to squeeze the drug in the drug storage capsule 42 into the drug-releasing cuff 41 to continue to maintain the anti-inflammatory and anti-allergic effects.
[0047] On the basis of the above technical solution, a check valve is provided at the air inlet 34 .
[0048] The check valve at the inflation port 34 can prevent the gas in the airbag 31 from leaking, ensuring that the airbag 31 continues to maintain a stable filling state, maintaining the fixing effect of the catheter body 10 in the airway, avoiding problems such as displacement of the catheter body 10 and failure of airway sealing due to gas leakage, and improving the stability and safety during intubation.
[0049] On the basis of the above technical solution, the catheter body 10 is made of medical-grade PU material, and its outer wall is coated with PTFE coating.
[0050] The catheter body 10 is made of medical-grade PU material to reduce irritation or allergic reactions to the airway mucosa caused by long-term contact; the outer wall is coated with PTFE (polytetrafluoroethylene) to reduce the surface friction coefficient of the catheter body 10, reduce damage to the mucosa during intubation, inhibit bacterial attachment, reduce the risk of infection, and further alleviate local mucosal inflammation caused by long-term intubation.
[0051] On the basis of the above technical solution, support ribs 12 are provided in the tube wall of the catheter body 10 .
[0052] The support ribs 12 inside the wall of the catheter body 10 can enhance the structural strength and anti-collapse ability of the catheter, preventing the catheter body 10 from being deformed and blocking the airway due to external force during intubation or when the patient's position changes, thereby ensuring the patency of the airway; at the same time, maintaining the morphological stability of the catheter body 10, facilitating precise insertion into the target position and improving reliability of use.
[0053] On the basis of the above technical solution, the support rib 12 is spirally arranged from one end to the other end of the catheter body 10 .
[0054] The spirally arranged support ribs 12 can evenly distribute the supporting force along the axial direction of the catheter body 10, while enhancing the strength of the tube wall, maintaining the overall flexibility and bendability of the catheter body 10, making it easy to adjust the intubation angle according to the airway anatomical structure and reduce mechanical damage to the airway during intubation; the spiral structure can also disperse external forces, further reducing the risk of local collapse, and taking into account both structural strength and flexibility of use.
[0055] In addition to ensuring the establishment of a stable and effective artificial airway, the tracheal tube of the present invention is also equipped with two independent drug delivery components, which not only ensure slow and continuous drug delivery for anti-inflammatory or allergic reactions, but also provide on-demand precise drug delivery and timely treatment according to sudden symptoms or special symptoms, taking into account both continuous treatment and emergency supplementation, and improving the treatment effect of local mucosal inflammation and allergic reactions in patients with long-term tracheal intubation.
[0056] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.
[0057] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.
[0058] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.
[0059] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.
[0060] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.
[0061] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.
Claims
1. A tracheal tube, characterized in that: The invention comprises a catheter body (10), an inflation component, a first drug delivery component and a second drug delivery component, wherein an inflation port (33), a first drug delivery port (21) and a second drug delivery cavity (43) are arranged at intervals at one end of the catheter body (10), the inflation component, the first drug delivery component and the second drug delivery component are all connected to the catheter body (10), one end of the inflation component is communicated with the inflation port (33), one end of the first drug delivery component is communicated with the first drug delivery port (21), and the second drug delivery component is communicated with the second drug delivery cavity (43).
2. A tracheal tube according to claim 1, characterized in that: The first drug delivery component includes a first drug delivery tube (20), at least a portion of which is embedded in the wall of the catheter body (10), one end of the first drug delivery tube (20) is connected to the first drug delivery port (21), and the other end of the first drug delivery tube (20) is provided with a first drug addition port (22).
3. A tracheal tube according to claim 2, characterized in that: A check valve is provided at the first drug adding port (22).
4. The endotracheal tube according to claim 2, characterized in that: The first drug delivery port (21) comprises a plurality of micro holes, and the plurality of micro holes are arranged at intervals on the outer wall of the catheter body (10).
5. The endotracheal tube according to claim 1, characterized in that: The inflation component includes an inflation tube (30), an air bag (31) and an indicator ball (32), wherein the air bag (31) is sleeved on one end of the catheter body (10) and communicated with the inflation port (33), at least a portion of the inflation tube (30) is embedded in the tube wall of the catheter body (10), one end of the inflation tube (30) is communicated with the inflation port (33), the other end of the inflation tube (30) is communicated with one end of the indicator ball (32), and the other end of the indicator ball (32) is provided with an air pumping port (34).
6. A tracheal tube according to claim 5, characterized in that: The second drug delivery component includes a second drug delivery tube (40), a drug release cuff (41) and a drug storage bag (42), wherein the drug release cuff (41) is sleeved on the outside of the air bag (31), and the interlayer cavity formed between the drug release cuff (41) and the air bag (31) forms the second drug delivery cavity (43), at least a portion of the second drug delivery tube (40) is embedded in the tube wall of the catheter body (10), one end of the second drug delivery tube (40) is connected to the second drug delivery cavity (43), and the other end of the second drug delivery tube (40) is detachably connected to the drug storage bag (42).
7. The endotracheal tube according to claim 5, characterized in that: A check valve is provided at the air pumping port (34).
8. The endotracheal tube according to claim 1, characterized in that: The catheter body (10) is made of medical-grade PU material, and its outer wall is coated with a PTFE coating.
9. An endotracheal tube according to any one of claims 1 to 8, characterized in that: Support ribs (12) are provided in the tube wall of the catheter body (10).
10. The endotracheal tube according to claim 9, characterized in that: The support rib (12) is spirally arranged from one end to the other end of the catheter body (10).