Tracheotomy cannula convenient for aerosol inhalation

Abstract

The utility model discloses a tracheotomy cannula convenient for aerosol inhalation. The tracheotomy cannula comprises a cannula body and an injection joint connected with the cannula body, the injection connector is detachably connected with the sleeve body through an integrated detachable structure or a detachable structure comprising a clamping sleeve, a gasket, a sealing ring and the like. The casing pipe body is of a bent double-layer structure with two through ends and comprises a casing pipe outer wall and a casing pipe inner wall, and a hollow structure is arranged between the casing pipe outer wall and the casing pipe inner wall; the two ends of the cannula body are a suction end inserted into the trachea and a guide-out end exposed out of the body respectively, the suction end of the cannula body can be inserted into the trachea of a patient performing tracheostomy operation, and the guide-out end can guide generated liquid out of the body; and one or more air injection holes are formed in the inner wall of the sleeve at the suction end.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical equipment and relates to a tracheotomy cannula which is convenient for atomization inhalation. Background Art

[0002] Tracheotomy is the most common auxiliary diagnosis and treatment method for oral and maxillofacial head and neck surgery, especially oral and maxillofacial malignant tumors, including resection of more than 1 / 3 of the tongue for tongue cancer, tumors at the root of the tongue, oropharyngeal cancer, and mandibular resection beyond the midline for gingival cancer. Bilateral cervical lymph node dissection and reconstructive surgery with large skin flaps are required. Surgical trauma may cause hematoma, edema and flap crisis in the surgical area. In the above cases, preventive tracheotomy is usually performed before surgery. In addition, the indications for tracheotomy include patients who cannot clear upper respiratory tract secretions independently or have severe progressive obstructive dyspnea and need long-term ventilator-assisted breathing, as well as emergency situations such as acute airway obstruction caused by massive bleeding, tissue swelling, and sputum blockage. In order to save the patient's life, emergency tracheotomy needs to be performed immediately.

[0003] After tracheotomy, the normal defense function of the respiratory tract is damaged, and the moisturizing and heat preservation functions of the respiratory tract are lost, which makes it easy for airway secretions to become viscous and form sputum crusts, as well as surgical trauma to damage the airway mucosa and form blood crusts due to exudation of blood. Therefore, postoperative airway management after oral and maxillofacial head and neck surgery is an important measure to prevent upper airway obstruction. If the airway is not managed properly, it may cause complications such as lung infection, cannula blockage, tracheotomy wound infection, and erosion of the airway wall mucosa to form fistulas. In order to prevent the occurrence of complications, good airway management must be done, among which airway atomization is crucial.

[0004] At present, there are two main nebulization methods most commonly used in clinical practice. One is ultrasonic nebulization inhalation (once every 4 hours or inhaled by mask for 20 minutes as needed), and the other is intermittent direct instillation of nebulized liquid into the airway (about 2 ml of nebulized liquid is dripped into the airway every 30 minutes). The disadvantage of the former is that the contact surface of the mask is large, the effect is not obvious, and the utilization efficiency of the nebulized liquid is low, resulting in a certain amount of waste; the disadvantage of the latter is that it is easy to cause choking and coughing in patients, and the patient's comfort level is significantly reduced, which is very inconvenient for medical staff to operate. Therefore, it is necessary to improve the methods of nebulization and humidification on the existing basis, improve the efficiency of expectoration, and reduce waste. Utility Model Content

[0005] In order to solve the deficiencies in the prior art, the utility model aims to provide a tracheotomy cannula that is convenient for atomization inhalation.

[0006] The utility model provides a tracheotomy cannula that is convenient for atomization inhalation, and simplifies a conventional tracheotomy cannula and an atomization inhalation channel into the same tubular structure. In addition to realizing conventional breathing and expectoration functions, the device can also be used as an atomization spray injection device to improve atomization efficiency and reduce drug waste. The patient can operate it alone, and the operation process is simpler and more convenient. Through the tracheotomy cannula in the utility model, the drug can be atomized and input into a specified position, and can also be used for humidification.

[0007] Specifically, the tracheotomy cannula in the utility model comprises a cannula body and an injection joint connected to the cannula body;

[0008] The sleeve body is a curved, two-layer structure with two ends connected, including a sleeve outer wall and a sleeve inner wall, and a hollow structure is formed between the sleeve outer wall and the sleeve inner wall; the two ends of the sleeve body are respectively an inhalation end inserted into the trachea and an outlet end exposed outside the body;

[0009] One or more air jet holes are arranged on the inner wall of the sleeve at the suction end; the air jet holes are evenly distributed on the inner wall of the sleeve, occupying about 1 / 4-1 / 2 of the inner wall surface of the sleeve;

[0010] In a specific embodiment, the distribution range of the air injection holes occupies 1 / 3 of the inner wall surface of the sleeve.

[0011] The injection joint is connected to the sleeve body in an integral or detachable manner.

[0012] The injection joint is detachably connected to the sleeve body through a structure including a ferrule, a gasket, a sealing ring, etc.

[0013] The inner diameter of the cannula body is 5-10 mm, and the outer diameter is 6-14 mm; the suction end of the cannula body can be inserted into the trachea of ​​a patient undergoing a tracheotomy, and the outlet end can discharge the generated liquid out of the body.

[0014] The injection joint comprises an injection tube and an injection interface, wherein the injection interface is arranged at the end of the injection tube, and the injection interface can be connected to a connecting tube of an external atomization device.

[0015] The injection interface includes a plug-in type, a snap-on type, and a threaded type.

[0016] The diameter of the jet hole is 1-2 mm; the atomized gas in the hollow chamber between the outer wall of the sleeve and the inner wall of the sleeve can be sprayed out through the jet hole.

[0017] The inner diameter of the sleeve body of the tracheotomy sleeve matches the model of the inner sleeve, and the sleeve body of different sizes is selected according to the diameter of the inner sleeve; the outlet end of the sleeve body can be connected to a negative pressure device, and a sputum suction tube connected to the negative pressure device can be inserted from the outlet end of the tracheotomy sleeve, which can help patients to suction sputum.

[0018] The outlet end of the tracheotomy tube may also be conventionally provided with a butterfly-shaped gasket and an external joint, wherein the gasket is used for fixing the tracheotomy tube to the patient to prevent displacement during treatment, and the external joint can be connected to an external device.

[0019] The improvement in the utility model is to change the conventional disposable tracheotomy tube into a double-layer design, the channel in the inner wall of the tube body can be used as a normal sputum discharge channel, the outer wall of the tube is coated on the outer side of the inner wall of the tube and forms a chamber for loading atomized spray with the inner wall of the tube, and the outer wall of the tube is provided with an injection pipe and an injection interface for injecting atomized spray into the chamber near the outlet end of the tube body. The utility model simplifies the conventional tracheotomy tube and atomization inhalation into the same tubular structure, improves the efficiency of atomization inhalation, reduces the waste of atomized liquid, and the patient can perform single-person operation, and the operation process is simpler and more convenient.

[0020] The tracheotomy tube of the utility model can be used in application scenarios such as oxygen supply, atomization during ventilator-assisted breathing, atomization administration of medicines, etc., and is convenient to use.

[0021] The beneficial effects of the utility model include:

[0022] 1. Improve atomization efficiency and reduce waste: The conventional mask inhalation atomization method for tracheotomy patients (placing the mask at the tracheotomy opening) is prone to leakage of atomization liquid, resulting in drug waste. At the same time, the contact area of ​​the mask is large, and the efficiency of truly effective atomization is low. The utility model can significantly improve the atomization efficiency.

[0023] 2. Simplified atomization device: The utility model simplifies the conventional tracheotomy cannula and atomization device into the same structure, effectively reducing resource waste.

[0024] 3. Convenient operation for patients and increased comfort: When patients perform atomization operation, they only need to connect the atomization connecting tube to the injection port of the sleeve body, take out the inner sleeve, and turn on the atomization machine to complete the atomization operation. It is simple, convenient, and comfortable.

[0025] 4. When a conventional oral and nasal mask is used for atomization inhalation (the mask fits the face and covers the mouth and nose), the drug enters the lower respiratory tract through the nasal cavity, and is blocked by physiological and anatomical structures such as the nasal concha and the presence of many ineffective cavities, resulting in drug retention in the nasal cavity and oral cavity, causing drug loss, resulting in a low drug deposition rate in the lungs and poor efficacy; however, the tracheotomy cannula in the utility model has a significantly greater atomization inhalation amount than the nasal inhalation amount, and the amount of drug deposited in the lungs will be significantly greater than the atomization inhalation amount through the nasal mask, thereby improving the efficacy of the drug. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For those skilled in the art, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 It is a cross-sectional view of a tracheotomy cannula of the utility model.

[0028] Figure 2 The utility model is a stereoscopic diagram of a tracheotomy cannula.

[0029] Figure 3 The utility model is a cross-sectional structural schematic diagram of a tracheotomy cannula near the suction end.

[0030] Figure 4 The utility model is a longitudinal section structure schematic diagram of the suction end position of the tracheotomy cannula.

[0031] Figure 5 is a schematic diagram of a tracheotomy tube with a butterfly-shaped external connector.

[0032] Figure 1-4 Among them, 1-casing body, 2-injection joint, 11-casing outer wall, 12-casing inner wall, 13-intake end, 14-export end, 15-jet hole, 21-injection pipe, 22-injection interface. DETAILED DESCRIPTION

[0033] The utility model is further described in detail with reference to the following specific embodiments and drawings. The process, conditions, experimental methods, etc. for implementing the utility model, except for the contents specifically mentioned below, are all common knowledge and common common sense in the field, and the utility model has no special restrictions.

[0034] Example 1

[0035] This embodiment provides a tracheotomy cannula that is convenient for aerosol inhalation, comprising: a cannula body 1, an injection connector 2 connected to the cannula body;

[0036] The sleeve body 1 is a curved, two-layer structure with two ends connected, including a sleeve outer wall 11 and a sleeve inner wall 12, and a hollow cavity is formed between the sleeve outer wall 11 and the sleeve inner wall 12; the two ends of the sleeve body 1 are respectively an inhalation end 13 inserted into the trachea and an outlet end 14 exposed outside the body;

[0037] A plurality of air injection holes 15 are provided on the inner wall 12 of the sleeve at the suction end.

[0038] The injection joint 2 is connected to the sleeve body 1 in an integrated manner.

[0039] The inner diameter of the cannula body 1 is 6 mm, and the outer diameter is 9 mm; the suction end 13 of the cannula body 1 can be inserted into the trachea of ​​a patient undergoing a tracheotomy, and the outlet end 14 can discharge the generated liquid out of the body.

[0040] The injection joint 2 includes an injection pipe 21 and an injection interface 22 . The injection interface 22 is disposed at the end of the injection pipe 21 . The injection interface 22 can be connected to a connecting pipe of an external atomization device.

[0041] The injection interface 22 is connected to the connecting pipe of the external atomization device by plugging.

[0042] The diameter of the jet holes 15 is 1 mm, and the distribution of the jet holes 15 occupies 1 / 2 of the inner wall surface of the sleeve; the atomized gas in the hollow chamber between the outer wall 11 and the inner wall 12 of the sleeve can be ejected through the jet holes 15 .

[0043] The outlet end of the tracheotomy tube may also be conventionally provided with a butterfly-shaped gasket and an external joint, wherein the gasket is used for fixing the tracheotomy tube to the patient to prevent displacement during treatment, and the external joint can be connected to an external device.

[0044] When in use, the suction end 13 of the tracheotomy cannula is inserted into the open airway, and the injection interface 22 connected to the cannula body 1 is connected to the connecting pipe of the external atomizing device through a plug-in structure. The mist generated by the atomizing device passes through the chamber in the middle of the cannula body 1, and then the mist is transported into the trachea through the jet hole 15 on the inner wall of the cannula body, and the environment in the airway is atomized or atomized. In addition, the outlet end 14 in the tracheotomy cannula is connected to the negative pressure device, and the sputum suction tube connected to the negative pressure device can be inserted from the outlet end 14 in the tracheotomy cannula, which can help the patient to suction sputum.

[0045] Example 2

[0046] The embodiment provides a tracheotomy cannula for facilitating aerosol inhalation, comprising: a cannula body 1, an injection joint 2 connected to the cannula body;

[0047] The sleeve body 1 is a curved, two-layer structure with two ends connected, including a sleeve outer wall 11 and a sleeve inner wall 12, and a hollow cavity is formed between the sleeve outer wall 11 and the sleeve inner wall 12; the two ends of the sleeve body 1 are respectively an inhalation end 13 inserted into the trachea and an outlet end 14 exposed outside the body;

[0048] A plurality of air injection holes 15 are provided on the inner wall 12 of the sleeve at the suction end.

[0049] The injection joint 2 is detachably connected to the sleeve body 1; when the injection joint is detachably connected to the sleeve body 1, a sealing ring is also provided at the connection to improve the sealing relationship between the two structures.

[0050] The inner diameter of the cannula body 1 is 7 mm, and the outer diameter is 10 mm; the suction end 13 of the cannula body 1 can be inserted into the trachea of ​​a patient undergoing a tracheotomy, and the outlet end 14 can discharge the generated liquid out of the body.

[0051] The injection joint 2 includes an injection pipe 21 and an injection interface 22 . The injection interface 22 is disposed at the end of the injection pipe 21 . The injection interface 22 can be connected to a connecting pipe of an external atomization device.

[0052] The injection port 22 is connected to the connecting pipe of the external atomization device by a snap-fit ​​connection.

[0053] The diameter of the jet holes 15 is 1.5 mm, and the distribution of the jet holes 15 occupies 1 / 3 of the inner wall surface of the sleeve; the atomized gas in the hollow chamber between the outer wall 11 and the inner wall 12 of the sleeve can be ejected through the jet holes 15 .

[0054] The outlet end of the tracheotomy tube may also be conventionally provided with a butterfly-shaped gasket and an external joint, wherein the gasket is used for fixing the tracheotomy tube to the patient to prevent displacement during treatment, and the external joint can be connected to an external device.

[0055] When in use, the suction end 13 of the tracheotomy tube is inserted into the open airway, and the injection interface 22 connected to the tube body 1 is connected to the connecting pipe of the external atomization device through a snap-fit ​​structure. The mist generated by the atomization device passes through the cavity in the middle of the tube body, and then is transported into the trachea through the jet hole 15 on the inner wall of the tube to atomize the environment in the airway.

[0056] In addition, the outlet end of the tracheotomy tube is connected to a negative pressure device, and a sputum suction tube connected to the negative pressure device can be inserted from the outlet end 14 of the tracheotomy tube to help the patient to suction sputum.

[0057] Example 3

[0058] The embodiment provides a tracheotomy cannula for facilitating aerosol inhalation, comprising a cannula body 1, an injection connector 2 connected to the cannula body;

[0059] The sleeve body 1 is a curved, two-layer structure with two ends connected, including a sleeve outer wall 11 and a sleeve inner wall 12, and a hollow cavity is formed between the sleeve outer wall 11 and the sleeve inner wall 12; the two ends of the sleeve body 1 are respectively an inhalation end 13 inserted into the trachea and an outlet end 14 exposed outside the body;

[0060] A plurality of air injection holes 15 are arranged on the inner wall 12 of the sleeve at the suction end, and the positions of the air injection holes 15 are regular or irregular.

[0061] The injection joint 2 is detachably connected to the sleeve body 1; when the injection joint 2 is detachably connected to the sleeve body 1, a gasket is further provided at the connection to improve the sealing relationship between the two structures.

[0062] The inner diameter of the cannula body 1 is 9 mm, and the outer diameter is 12 mm; the suction end 13 of the cannula body 1 can be inserted into the trachea of ​​a patient undergoing a tracheotomy, and the outlet end 14 can discharge the generated liquid out of the body.

[0063] The injection joint 2 includes an injection pipe 21 and an injection interface 22 . The injection interface 22 is disposed at the end of the injection pipe 21 . The injection interface 22 can be connected to a connecting pipe of an external atomization device.

[0064] The injection port 22 is connected to the connecting pipe of the external atomization device by a threaded connection.

[0065] The diameter of the jet holes 15 is 2 mm, and the distribution of the jet holes 15 occupies 1 / 4 of the inner wall surface of the sleeve; the atomized gas in the hollow chamber between the outer wall 11 and the inner wall 12 of the sleeve can be ejected through the jet holes 15 .

[0066] The outlet end of the tracheotomy tube may also be conventionally provided with a butterfly-shaped gasket and an external joint, wherein the gasket is used for fixing the tracheotomy tube to the patient to prevent displacement during treatment, and the external joint can be connected to an external device.

[0067] When in use, the suction end 13 of the tracheotomy tube is inserted into the open airway, and the injection interface 22 connected to the tube body 1 is connected to the connecting pipe of the external atomization device through a threaded structure. The mist generated by the oxygen supply device after atomization passes through the cavity in the middle of the tube body, and then is transported into the trachea through the jet holes on the inner wall of the tube body to atomize the environment in the airway.

[0068] In addition, the outlet end of the tracheotomy tube is connected to a negative pressure device, and a sputum suction tube connected to the negative pressure device can be inserted from the outlet end 14 of the tracheotomy tube to help the patient to suction sputum.

[0069] Example 4

[0070] This embodiment provides a tracheotomy cannula that is convenient for atomization inhalation, including a cannula body 1;

[0071] The sleeve body 1 is a curved, two-layer structure with two ends connected, including a sleeve outer wall 11 and a sleeve inner wall 12, and a hollow cavity is formed between the sleeve outer wall 11 and the sleeve inner wall 12; the two ends of the sleeve body 1 are respectively an inhalation end 13 inserted into the trachea and an outlet end 14 exposed outside the body;

[0072] A plurality of air injection holes 15 are provided on the inner wall 12 of the sleeve at the suction end.

[0073] The diameter of the jet holes 15 is 1 mm, and the distribution of the jet holes 15 occupies 1 / 2 of the inner wall surface of the sleeve; the atomized gas in the hollow chamber between the outer wall 11 and the inner wall 12 of the sleeve can be ejected through the jet holes 15 .

[0074] The casing body 1 is not provided with an injection joint 2, but is provided with an opening for inserting a prefabricated hose into the casing body 1. The longer prefabricated hose is connected to the casing body 1 through the opening, and the other end of the hose is connected to an external atomizing device, etc.;

[0075] The outlet end of the tracheotomy tube may also be conventionally provided with a butterfly-shaped gasket and an external joint, wherein the gasket is used for fixing the tracheotomy tube to the patient to prevent displacement during treatment, and the external joint can be connected to an external device.

[0076] When in use, the suction end 13 of the tracheotomy cannula is inserted into the open airway, the prefabricated hose connected to the cannula body 1 is connected to the connecting pipe of the external atomizing device, the mist generated by the atomizing device passes through the chamber in the middle of the cannula body 1, and then the mist is transported into the trachea through the jet hole 15 on the inner wall of the cannula body, and the environment in the airway is atomized or atomized. In addition, the outlet end 14 in the tracheotomy cannula is connected to the negative pressure device, and the sputum suction tube connected to the negative pressure device can be inserted from the outlet end 14 in the tracheotomy cannula, which can help the patient to suction sputum.

[0077] The protection content of the present invention is not limited to the above embodiments. Without departing from the spirit and scope of the utility model concept, changes and advantages that can be thought of by those skilled in the art are included in the present invention and are protected by the attached claims.

Claims

1. A tracheotomy tube for convenient aerosol inhalation, characterized in that: The tracheotomy cannula comprises a cannula body (1) and an injection joint (2) connected to the cannula body; The sleeve body (1) is a curved, two-layer structure with two ends connected, comprising a sleeve outer wall (11) and a sleeve inner wall (12), wherein a hollow structure is formed between the sleeve outer wall (11) and the sleeve inner wall (12); the two ends of the sleeve body (1) are respectively an inhalation end (13) inserted into the trachea and an outlet end (14) exposed outside the body; One or more air injection holes (15) are arranged on the inner wall (12) of the sleeve at the suction end.

2. The tracheotomy tube according to claim 1, characterized in that: The injection joint (2) is connected to the sleeve body (1) in an integral or detachable manner.

3. The tracheotomy tube according to claim 2, characterized in that: The injection joint (2) is detachably connected to the sleeve body (1) via a structure including a ferrule, a gasket and a sealing ring.

4. The tracheotomy tube according to claim 1, characterized in that: The inner diameter of the cannula body (1) is 5-10 mm, and the outer diameter is 6-14 mm; the suction end (13) of the cannula body (1) can be inserted into the trachea of ​​a patient undergoing a tracheotomy, and the discharge end (14) can discharge the generated liquid out of the body.

5. The tracheotomy tube according to claim 1, characterized in that: The injection joint (2) comprises an injection pipe (21) and an injection interface (22), wherein the injection interface (22) is arranged at the end of the injection pipe (21), and the injection interface (22) can be connected to a connecting pipe of an external atomization device.

6. The tracheotomy tube according to claim 5, characterized in that: The injection interface (22) includes a plug-in type, a snap-on type, and a threaded type.

7. The tracheotomy tube according to claim 1, characterized in that: The diameter of the jet holes (15) is 1-2 mm, and the distribution of the jet holes (15) occupies 1 / 4-1 / 2 of the inner wall surface of the sleeve; the atomized gas in the hollow chamber between the outer wall (11) of the sleeve and the inner wall (12) of the sleeve can be ejected through the jet holes (15).

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