Tracheotomy cannula with reminding function

By placing a first air cuff and a metal wire in the tracheostomy cannula, using litmus reagent reaction color to determine the nature of the liquid, and reducing the patient's skin contact area with an inflatable rubber ring, the problem of existing cannulas being unable to identify refluxed liquids has been solved, improving the timeliness and comfort of nursing care.

CN121846449APending Publication Date: 2026-04-14BEIJING REHABILITATION HOSPITAL CAPITAL MEDICAL UNIVERSITY(BEIJING WORKERS SANATORIUM)
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2023-12-29
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

The existing tracheostomy tubes lack a warning function, which makes it impossible to identify and deal with refluxed fluid in a timely manner, increasing the patient's pain.

Method used

A tracheostomy cannula with a reminder function was designed. By setting a first air bladder and a metal wire, the properties of the liquid are determined by the color reaction of litmus reagent, and the inflatable rubber ring reduces the contact area with the patient's skin to avoid pressure sores.

Benefits of technology

It enables timely identification and treatment of refluxed fluid, reducing patient discomfort and pain, and improving the timeliness and comfort of nursing care.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of tracheotomy cannulas, in particular to a tracheotomy cannula with a reminding function, which comprises a fixing plate, and a gas conduit is inserted into the fixing plate. The first air bag is in an awl shape with a wide lower part and a narrow upper part and is in a grid shape, so that reflux liquid can be retained and does not leak downwards, meanwhile, the metal wire is arranged and the outer surface of the metal wire is infiltrated with a litmus reagent, if reflux liquid flows down, the liquid is pumped from the first air bag through the liquid pumping pipe, and then the liquid is pumped into the second air bag through the liquid pumping pipe. The device is arranged on the neck of a patient, then the device extends to the outside through the second air bag, if the device is acidic liquid, the device is red, and if the device is alkaline liquid, the device is blue, so that the device can be judged according to colors and has a reminding function; the inflatable rubber ring in the fixing piece is used for secondary fixing, the contact area with the neck of the patient can be reduced, pressure sores caused by long-time binding can be avoided, and the comfort is improved.
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Description

Technical Field

[0001] This invention relates to the field of tracheostomy tube technology, and specifically to a tracheostomy tube with a reminder function. Background Technology

[0002] Tracheotomy is an emergency surgery to save critically ill patients. The procedure involves making an incision in the skin and trachea in the neck and inserting a tracheostomy tube into the trachea. The patient can breathe through the tube and sputum can be suctioned out through the tube. It is mainly suitable for patients who are unconscious, need sputum suction, use invasive ventilators for a long time, and have difficulty breathing due to laryngeal edema or tumor compression. Patients can have their airway cleared and their breathing kept open through tracheotomy. After the condition improves, the tracheostomy tube can be removed and the wound can be sutured.

[0003] However, during tracheotomy, other reflux phenomena such as esophageal reflux may occur. Most existing tracheostomy tubes do not have a warning function and cannot quickly identify refluxed fluid, thus failing to provide timely response and care, resulting in prolonged discomfort and increased pain for the patient. Summary of the Invention

[0004] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a tracheostomy tube with a reminder function, which can effectively solve the problem that the existing tracheostomy tubes do not have a reminder function, cannot respond quickly, and will aggravate the patient's pain.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] This invention provides a tracheostomy tube with a reminder function, comprising a fixing plate, a gas conduit inserted inside the fixing plate, a first airbag fixedly connected to the outside of the gas conduit, an inflation tube connected inside the gas conduit, a second airbag connected to one end of the inflation tube, a suction tube connected inside the second airbag, and fixing straps fixedly connected to both sides of the fixing plate, each fixing strap having a fixing member on its upper side; the two sets of fixing straps are connected by a connector; wherein, the first airbag is conical in shape, wider at the bottom and narrower at the top, and both the outer and inner surfaces of the first airbag are mesh-like, and the material of the first airbag is water-permeable but air-permeable; the suction tube has metal wires inside.

[0007] Furthermore, the liquid extraction tube is fixedly connected inside the gas conduit, and the metal wire is fixedly connected inside the liquid extraction tube. The liquid extraction tube extends through the inflation tube and the interior of the second airbag to the exterior of the second airbag.

[0008] Furthermore, the fixing component includes an inflatable rubber ring, with two sets of connecting blocks fixedly connected to both sides of the inflatable rubber ring. An air inlet pipe is connected inside the inflatable rubber ring, and one end of the air inlet pipe is connected to a third airbag.

[0009] Furthermore, the fixing belt has a cavity inside, and an inflatable rubber ring is placed inside the cavity.

[0010] Furthermore, two sets of sliding grooves are provided on both the upper and lower sides of the fixing belt, and deformable silicone strips are pasted on the inner surface of the sliding grooves. The connecting block slides in conjunction with the sliding grooves, and the air intake pipe passes through one set of sliding grooves to the outside of the fixing belt.

[0011] Furthermore, the second airbag, the liquid extraction tube, and the third airbag are all equipped with one-way valves.

[0012] Furthermore, the connector includes a detachable hook and loop fastener surface disposed on the outer surface of the fixing strap on the left side, and the connector also includes a detachable hook and loop fastener surface disposed on the outer surface of the fixing strap on the right side, and the hook and loop fastener surface and the hook and loop fastener surface are glued together.

[0013] Furthermore, one end of the gas conduit is connected to a connection port.

[0014] The technical solution provided by this invention has the following advantages compared with the known prior art:

[0015] This invention features a first airbag shaped like a cone, wider at the bottom and narrower at the top, with a mesh-like structure. This design helps to retain refluxed liquid and prevent leakage. A metal wire is incorporated, its outer surface of which is impregnated with litmus reagent. If refluxed liquid flows down, a suction tube is used to draw the liquid from the first airbag, then through the second airbag to the outside. Observation reveals that acidic liquids are red, while alkaline liquids are blue, providing a color-based warning. Furthermore, a fixing component is included. When the device is secured to the patient's neck, it is first fixed with a connector, and then further secured with an inflatable rubber ring within the fixing component. This reduces the contact area with the patient's neck, preventing pressure sores from prolonged binding and increasing comfort. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0017] Figure 1This is a front view schematic diagram of the overall structure in this invention;

[0018] Figure 2 This is a rear view of the overall structure of the present invention;

[0019] Figure 3 This is a schematic cross-sectional view of the first airbag in this invention;

[0020] Figure 4 This is a schematic diagram of some structures in the present invention;

[0021] Figure 5 This is a schematic diagram of the fixing strap in this invention;

[0022] Figure 6 This is a top view of the cross-sectional structure of the fixing strap in this invention;

[0023] Figure 7 In this invention Figure 6 Enlarged structural diagram at point A in the middle;

[0024] Figure 8 This is a side view of the cross-sectional structure of the fixing strap in this invention.

[0025] The labels in the diagram represent: 1. Fixing plate; 2. Gas conduit; 201. Connecting port; 3. First airbag; 4. Inflation tube; 5. Second airbag; 6. Connecting tube; 7. Metal wire; 8. Fixing strap; 801. Cavity; 802. Sliding groove; 9. Fixing component; 901. Inflatable rubber ring; 902. Connecting block; 903. Air inlet tube; 904. Third airbag; 10. Velcro surface; 11. Velcro hook surface. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0027] The present invention will be further described below with reference to embodiments.

[0028] Example: A tracheostomy tube with a reminder function, such as Figures 1-8As shown, the device includes a fixing plate 1, a gas conduit 2 inserted inside the fixing plate 1, a first airbag 3 fixedly connected to the outside of the gas conduit 2 for fixing the gas conduit 2 inside the patient's bronchus, an inflation tube 4 connected inside the gas conduit 2, one end of the inflation tube 4 connected to a second airbag 5 for inflating the conduit (the second airbag 5 and the first airbag 3 are connected to the gas conduit 2 through the inflation tube 4, and the pressure of the first airbag 3 can be monitored through the second airbag 5), a suction tube 6 connected inside the second airbag 5 for extracting and identifying leaked liquid, and fixing straps 8 fixedly connected to both sides of the fixing plate 1 for fixing the entire device to the patient, with fixing members 9 on the upper side of each fixing strap 8, and the two sets of fixing straps 8 connected by connectors for fixing the two fixing straps 8.

[0029] The first airbag 3 is cone-shaped with a wider bottom and a narrower top, and both the outer and inner surfaces of the first airbag 3 are mesh-like, which helps to retain the backflowing liquid and prevent it from leaking downwards. The material of the first airbag 3 is water-permeable but air-permeable.

[0030] The internal part of the suction tube 6 is equipped with a metal wire 7, which is used to guide the refluxed liquid from the first airbag 3 to the second airbag 5. Then, because the suction tube 6 is on the outside of the second airbag 5, the liquid reacts with the metal wire 7, which is soaked in litmus reagent, and the color can be observed. This can alert medical staff and family members to the refluxed liquid, and determine its characteristics and then take appropriate measures.

[0031] The liquid extraction tube 6 is fixedly connected inside the gas conduit 2 to facilitate its fixation and prevent it from moving during use. The metal wire 7 is fixedly connected inside the liquid extraction tube 6. By fixing the metal wire 7 inside the liquid extraction tube 6, the leaked liquid can react with the internal metal wire 7 as it passes through the liquid extraction tube 6. The liquid extraction tube 6 extends through the inflation tube 4 and the interior of the second airbag 5 to the exterior of the second airbag 5.

[0032] The fixing component 9 includes an inflatable rubber ring 901. The inflatable rubber ring 901 is used to compress one side of the fixing strap 8 and then fix it, which can reduce the contact area, reduce pressure sores and the patient's blood circulation. Two sets of connecting blocks 902 are fixedly connected to both sides of the inflatable rubber ring 901. The connecting blocks 902 are made of silicone material, which will not cause discomfort to the patient. An air inlet pipe 903 is connected inside the inflatable rubber ring 901, and one end of the air inlet pipe 903 is connected to a third airbag 904.

[0033] The fixing strap 8 has a cavity 801 inside, and the inflatable rubber ring 901 is placed inside the cavity 801, which makes it easy to move the inflatable rubber ring 901. At the same time, the inflatable rubber ring 901 can squeeze one side of the fixing strap 8 to fix it to the patient's neck.

[0034] The fixing band 8 has two sets of sliding grooves 802 on both the upper and lower sides, and the inner surface of the sliding groove 802 is attached with a deformable silicone strip, which facilitates the sliding of the connecting block 902. The connecting block 902 slides and engages with the sliding groove 802. The air inlet pipe 903 passes through one of the sliding grooves 802 to the outside of the fixing band 8, so that it is not affected during the movement of the inflatable rubber ring 901. The air inlet pipe 903 can also slide inside the sliding groove 802.

[0035] The second airbag 5, the liquid extraction tube 6, and the third airbag 904 are all equipped with one-way valves to facilitate inflation and sealing.

[0036] The connector includes a detachable hook and loop fastener 10 on the outer surface of the fixing strap 8 on the left side, and a detachable hook and loop fastener 11 on the outer surface of the fixing strap 8 on the right side. The hook and loop fastener 10 and the hook and loop fastener 11 are glued together, which makes it easy to fix the two fixing straps 8. The detachable connection also makes it easy to replace when the fastener is no longer sticky after long-term use.

[0037] One end of the gas conduit 2 is connected to a connection port 201 (the connection port 201 is used for patient ventilation).

[0038] Specifically, during use, the first airbag 3 is inflated, and the gas tube 2 is fixed in the bronchus of the human body. Since the first airbag 3 is cone-shaped and mesh-like, it can retain the refluxed liquid and prevent it from leaking downwards. If there is refluxed liquid, it is extracted through the suction tube 6. The liquid will first pass through the first airbag 3, and then be guided to the second airbag 5 and then to the outside through the suction tube 6. Then, it passes through the metal wire 7 inside the suction tube 6. Since the outside of the metal wire 7 is soaked with litmus reagent, the properties of the refluxed liquid can be observed by the color after the litmus reagent reacts with the refluxed liquid. For example, if the refluxed liquid is gastric acid, it will be red; if the refluxed liquid is saliva, it will be blue. In this way, the refluxed liquid can be inferred, thus serving as a warning.

[0039] While securing the gas tube 2, medical staff wrap two securing straps 8 around the patient's neck, connecting and securing the hook and loop sides 10 and 11 of the Velcro. At this point, the securing should not be too tight. Then, the third air bladder 904 is squeezed to inflate the inflatable rubber ring 901. The inflatable rubber ring 901 then compresses the securing straps 8, fixing them to the patient's skin. This reduces the contact area for securing the straps. Additionally, the soft inflatable rubber ring 901 reduces the risk of pressure sores and poor blood circulation caused by prolonged securing.

[0040] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A tracheostomy cannula with a reminder function, characterized in that, Includes a fixing plate (1), a gas conduit (2) is inserted inside the fixing plate (1), a first airbag (3) is fixedly connected to the outside of the gas conduit (2), an inflation tube (4) is connected inside the gas conduit (2), one end of the inflation tube (4) is connected to a second airbag (5), a liquid extraction tube (6) is connected inside the second airbag (5), fixing straps (8) are fixedly connected to both sides of the fixing plate (1), and fixing members (9) are provided on the upper side of each fixing strap (8), and the two sets of fixing straps (8) are connected by connectors; The first airbag (3) is cone-shaped with a wider bottom and a narrower top, and both the outer and inner surfaces of the first airbag (3) are mesh-like. The material of the first airbag (3) is water-permeable but not air-permeable. The inside of the liquid extraction tube (6) is provided with a metal wire (7).

2. A tracheostomy cannula with a reminder function according to claim 1, characterized in that, The liquid extraction tube (6) is fixedly connected inside the gas conduit (2), and the metal wire (7) is fixedly connected inside the liquid extraction tube (6). The liquid extraction tube (6) extends through the inflation tube (4) and the interior of the second airbag (5) to the exterior of the second airbag (5).

3. A tracheostomy cannula with a reminder function according to claim 2, characterized in that, The fixing component (9) includes an inflatable rubber ring (901), and two sets of connecting blocks (902) are fixedly connected to both sides of the inflatable rubber ring (901). An air inlet pipe (903) is connected inside the inflatable rubber ring (901), and one end of the air inlet pipe (903) is connected to a third airbag (904).

4. A tracheostomy cannula with a reminder function according to claim 3, characterized in that, The fixing belt (8) has a cavity (801) inside, and the inflatable rubber ring (901) is placed inside the cavity (801).

5. A tracheostomy cannula with a reminder function according to claim 3, characterized in that, The fixing band (8) has two sets of sliding grooves (802) on both the upper and lower sides, and the inner surface of the sliding groove (802) is attached with a deformable silicone strip. The connecting block (902) slides in conjunction with the sliding groove (802), and the air inlet pipe (903) passes through one of the sliding grooves (802) to the outside of the fixing band (8).

6. A tracheostomy cannula with a reminder function according to claim 3, characterized in that, The second airbag (5), the liquid extraction tube (6), and the third airbag (904) are all equipped with one-way valves.

7. A tracheostomy cannula with a reminder function according to claim 1, characterized in that, The connector includes a detachable hook and loop fastener (10) disposed on the outer surface of the fixing strap (8) on the left side, and a detachable hook and loop fastener (11) disposed on the outer surface of the fixing strap (8) on the right side, and the hook and loop fastener (10) and the hook and loop fastener (11) are bonded together.

8. A tracheostomy cannula with a reminder function according to claim 1, characterized in that, One end of the gas conduit (2) is connected to a connector (201).