Trachea cannula with adjustable cannula diameter

Abstract

The invention discloses a trachea cannula with an adjustable cannula diameter, which comprises a cannula body and an adjusting part, and is characterized in that one end of the cannula body is communicated with the adjusting part, and the adjusting part is used for adjusting the cannula diameter of the cannula body; the pipe body comprises an inner pipe and an outer pipe, the outer pipe is arranged on the outer wall of the inner pipe, a first cavity is formed between the inner pipe and the outer pipe, a second cavity is formed in the pipe wall of the outer pipe, and the second cavity is communicated with the adjusting part; the tube wall of the inner tube is sleeved with a steel wire coil, the steel wire coil is located in the first cavity, and a sleeve bag is arranged at the end of the inner tube. The trachea cannula can effectively prevent the situation that the trachea is shrunk or narrow to press the inner tube, so that the inner tube cannot supply oxygen required by a patient or too little oxygen is introduced into the inner tube, can effectively prevent continuous expansion of the outer tube from causing harm to the trachea of the patient, and improves the safety of the cannula.

Description

Technical Field

[0001] The invention relates to the technical field of endotracheal intubation auxiliary instruments, and in particular to an endotracheal intubation tube with adjustable intubation tube diameter. Background Art

[0002] Endotracheal intubation is a method of inserting a special endotracheal tube into the trachea or bronchus through the oral or nasal cavity and the glottis, providing the best conditions for airway patency, ventilation and oxygen supply, and airway suction. It is an important measure to rescue patients with respiratory dysfunction.

[0003] Endotracheal intubation technology has become an important measure in the process of cardiopulmonary resuscitation and rescue of critically ill patients with respiratory dysfunction. Endotracheal intubation is an important rescue technology commonly used in emergency work. It is one of the most widely used, effective and fastest means of respiratory management. It is a basic skill that medical personnel must master proficiently. It plays a vital role in saving patients' lives and reducing mortality. It can also timely aspirate secretions or foreign matter in the trachea, prevent foreign matter from entering the respiratory tract, keep the respiratory tract open, perform effective artificial or mechanical ventilation, and prevent patients from hypoxia and carbon dioxide retention. Whether the tracheal intubation is timely is directly related to the success of the rescue, whether the patient can be safely transferred, and the patient's prognosis.

[0004] After the existing endotracheal tube is inserted into the trachea, in some patients, when the trachea is blocked or narrowed, the tube is easily squeezed and deformed in the trachea, which affects the airway of the tube, fails to effectively ensure the patency of the airway, and fails to effectively ventilate and oxygenate.

[0005] Therefore, we propose an endotracheal tube with adjustable tube diameter to solve the above problems. Summary of the invention

[0006] The object of the present invention is to provide a tracheal cannula with adjustable cannula diameter to solve the problems raised in the above background technology.

[0007] To achieve the above object, the present invention provides the following technical solution: a tracheal intubation tube with adjustable intubation diameter, comprising a tube body and an adjusting member, characterized in that one end of the tube body is connected to the adjusting member, and the adjusting member is used to adjust the diameter of the tube body;

[0008] The tube body comprises an inner tube and an outer tube, the outer tube is arranged on the outer wall of the inner tube, a first chamber is arranged between the inner tube and the outer tube, a second chamber is arranged in the tube wall of the outer tube, and the second chamber is communicated with the regulating member;

[0009] A steel wire coil is sleeved on the tube wall of the inner tube, the steel wire coil is located in the first chamber, and a cuff is provided at the end of the inner tube.

[0010] In one embodiment of the present invention, the adjusting member includes an air pump, a pressure sensor and a decompression assembly, the air pump is connected to the second chamber, the pressure sensor is fixedly installed at the end of the outer tube, and the sensing part of the pressure sensor is located in the second chamber, and the decompression assembly is connected to the second chamber.

[0011] In one embodiment of the present invention, the decompression assembly includes a connecting pipe, a piston and a telescopic part. The connecting pipe is connected to the second chamber, a plurality of ventilation holes are opened on the side wall of the connecting pipe, the piston is slidably installed in the connecting pipe, one end of the telescopic part is fixedly connected to the piston, and the telescopic part is installed in the connecting pipe.

[0012] In one embodiment of the present invention, the telescopic member includes a spring, a fixed tube and a movable tube, the movable tube is slidably installed in the fixed tube, one end of the spring is fixedly connected to the inner bottom of the fixed tube, the other end of the spring is fixedly connected to one end of the movable tube, and the end of the movable tube away from the spring is fixedly connected to the piston.

[0013] In one embodiment of the present invention, scale lines are arranged on the tube wall of the outer tube.

[0014] In an embodiment of the present invention, the number of the vent holes is no less than two, the vent holes are located on one side of the piston, and the vent holes can be communicated with the second chamber.

[0015] In one embodiment of the present invention, the tube wall of the outer tube is configured as a smooth surface.

[0016] In one embodiment of the present invention, a control system is further included, and the control system includes a pressure sensing module, a control module and an inflation module, the control module is signal-connected to the pressure sensing module, and the inflation module is signal-connected to the control module.

[0017] In an embodiment of the present invention, the pressure sensing module is used to detect the pressure in the second chamber.

[0018] In an embodiment of the present invention, the control module is used to receive data transmitted by the pressure sensing module and can control the start and stop of the inflation module.

[0019] In summary, due to the adoption of the above technology, the beneficial effects of the present invention are:

[0020] In the present invention, by using the first chamber, the second chamber and the steel wire coil in coordination, when the air pump inflates the first chamber, the gas in the first chamber is filled to expand the outer tube, which can slightly expand the trachea, and effectively prevent the trachea from contracting or narrowing and compressing the inner tube, so that the inner tube cannot be supplied with oxygen or too little oxygen can be supplied, and the oxygen required by the patient cannot be supplied;

[0021] By using the decompression assembly, when the air pressure in the second chamber is too high, the gas in the second chamber is filled to push the piston to slide in the connecting pipe, and at the same time, the spring is squeezed to contract, so that the vent hole is connected with the connecting pipe, so that the air in the second chamber is discharged. After the pressure relief is completed, the piston is reset under the thrust of the spring, and the piston blocks the air passage between the vent hole and the connecting pipe, which can block the second chamber from continuing to exhaust gas to the outside, and can effectively prevent the excessive gas in the second chamber from continuing to expand and cause damage to the trachea;

[0022] Through the use of the control system, when the pressure sensing module detects that the air pressure in the second chamber is too high, it transmits a signal to the control module. The control module controls the inflation module to close and stop supplying air to the outer tube, so that the outer tube stops expanding. This can effectively prevent the continuous expansion of the outer tube from causing harm to the patient's trachea and improve the safety of intubation. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the present invention;

[0024] Figure 2 For the present invention Figure 1 A schematic diagram of the enlarged structure of the middle part A;

[0025] Figure 3 It is an axonometric schematic diagram of the inner tube of the present invention;

[0026] Figure 4 It is a schematic cross-sectional view of the inner tube of the present invention;

[0027] Figure 5 It is a schematic diagram of the axonometric measurement of the outer tube of the present invention;

[0028] Figure 6 It is a schematic cross-sectional view of an outer tube of the present invention;

[0029] Figure 7 For the present invention Figure 6 Middle B is an enlarged schematic diagram of the structure;

[0030] Figure 8 For the present invention Figure 6 A magnified schematic diagram of the C structure;

[0031] Fig. 9 It is a schematic block diagram of the control system of the present invention.

[0032] In the figure: 1. tube body; 2. adjusting part; 3. inner tube; 4. outer tube; 5. first chamber; 6. second chamber; 7. air pump; 8. pressure sensor; 9. pressure reducing assembly; 10. connecting pipe; 11. piston; 12. telescopic part; 13. vent; 14. spring; 15. fixed tube; 16. movable tube; 17. wire coil. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the invention claimed for protection, but merely represents the selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0034] In the description of the present invention, it is necessary to understand that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the 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 cannot be understood as a limitation on the present invention.

[0035] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances of the specification.

[0036] Example 1

[0037] See also Figure 1-Figure 9 The present invention provides an endotracheal tube with adjustable tube diameter, comprising a tube body 1 and an adjusting member 2, one end of the tube body 1 is connected to the adjusting member 2, and the adjusting member 2 is used to adjust the tube diameter of the tube body 1;

[0038] The tube body 1 includes an inner tube 3 and an outer tube 4, wherein the outer tube 4 is arranged on the outer wall of the inner tube 3, and a first chamber 5 is arranged between the inner tube 3 and the outer tube 4, and a second chamber 6 is arranged in the tube wall of the outer tube 4, and the second chamber 6 is communicated with the regulating member 2;

[0039] A steel wire coil 17 is sleeved on the wall of the inner tube 3, and the steel wire coil 17 is located in the first chamber 5. A cuff is provided at the end of the inner tube 3;

[0040] The regulating member 2 includes an air pump 7, a pressure sensor 8 and a decompression assembly 9. The air pump 7 is connected to the second chamber 6. The pressure sensor 8 is fixedly installed at the end of the outer tube 4, and the sensing part of the pressure sensor 8 is located in the second chamber 6. The decompression assembly 9 is connected to the second chamber 6.

[0041] By adopting the above scheme, through the coordinated use of the first chamber 5, the second chamber 6 and the wire coil 17, when the air pump 7 inflates the first chamber 5, the gas filled into the first chamber 5 causes the outer tube to expand, which can slightly expand the trachea, and can effectively prevent the trachea from contracting or narrowing and compressing the inner tube, so that the inner tube cannot be supplied with oxygen or too little oxygen can be supplied, and the patient cannot be supplied with the oxygen needed by the patient.

[0042] In the present invention, the decompression assembly 9 includes a connecting pipe 10, a piston 11 and a telescopic member 12. The connecting pipe 10 is communicated with the second chamber 6. A plurality of vent holes 13 are provided on the side wall of the connecting pipe 10. The piston 11 is slidably installed in the connecting pipe 10. One end of the telescopic member 12 is fixedly connected to the piston 11. The telescopic member 12 is installed in the connecting pipe 10.

[0043] The telescopic member 12 includes a spring 14, a fixed tube 15 and a movable tube 16. The movable tube 16 is slidably installed in the fixed tube 15. One end of the spring 14 is fixedly connected to the inner bottom of the fixed tube 15, and the other end of the spring 14 is fixedly connected to one end of the movable tube 16. The end of the movable tube 16 away from the spring 14 is fixedly connected to the piston 11.

[0044] By adopting the above scheme, through the use of the decompression assembly 9, when the air pressure in the second chamber 6 is too high, the gas in the second chamber is filled to push the piston 11 to slide in the connecting tube 10, and at the same time, the spring 14 is squeezed to contract, so that the vent 13 is connected with the connecting tube 10, so that the air in the second chamber 6 is discharged. After the pressure relief is completed, the piston 11 is reset under the thrust of the spring 14, and the piston 11 blocks the air path between the vent 13 and the connecting tube 10, which can prevent the second chamber 6 from continuing to exhaust gas to the outside, and can effectively prevent the second chamber 6 from having too much gas and continuous expansion to cause damage to the trachea.

[0045] In the present invention, scale lines are arranged on the wall of the outer tube 4 .

[0046] By adopting the above scheme, the length of the cannula inserted into the trachea can be measured by using the scale lines, so that medical staff can intuitively observe the insertion depth of the cannula.

[0047] In the present invention, the number of the vent holes 13 is no less than two, the vent holes 13 are located on one side of the piston 11 , and the vent holes 13 can be communicated with the second chamber 6 .

[0048] By adopting the above scheme, the excess air in the second chamber 6 can be discharged through the use of the vent hole 13, which can effectively prevent the outer tube from continuing to expand and causing harm to the patient's trachea.

[0049] In the present invention, the tube wall of the outer tube 4 is set to be a smooth surface.

[0050] By adopting the above solution, the use of the outer tube 4 can effectively reduce the friction between the cannula and the trachea when the cannula is inserted into the trachea.

[0051] In the present invention, a control system is also included, the control system includes a pressure sensing module, a control module and an inflation module, the control module is connected to the pressure sensing module by signal, and the inflation module is connected to the control module by signal;

[0052] The pressure sensing module is used to detect the pressure in the second chamber 6;

[0053] The control module is used to receive data transmitted by the pressure sensing module and can control the start and stop of the inflation module.

[0054] By adopting the above scheme and using the control system, when the pressure sensing module detects that the air pressure in the second chamber is too high, a signal is transmitted to the control module. The control module controls the inflation module to close and stop supplying air to the outer tube, so that the outer tube stops expanding. This can effectively prevent the continuous expansion of the outer tube from causing harm to the patient's trachea and improve the safety of intubation.

[0055] Working principle: When in use, through the coordinated use of the first chamber 5, the second chamber 6 and the steel wire coil 17, when the air pump 7 inflates the first chamber 5, the gas in the first chamber 5 expands the outer tube, which can slightly expand the trachea, and effectively prevent the trachea from contracting or narrowing and compressing the inner tube, so that the inner tube cannot be supplied with oxygen or too little oxygen can be supplied, and the oxygen required by the patient cannot be supplied;

[0056] By using the decompression assembly 9, when the air pressure in the second chamber 6 is too high, the gas in the second chamber is filled to push the piston 11 to slide in the connecting pipe 10, and at the same time, the spring 14 is squeezed to contract, so that the vent hole 13 is connected with the connecting pipe 10, so that the air in the second chamber 6 is discharged. After the pressure relief is completed, the piston 11 is reset under the thrust of the spring 14, and the piston 11 blocks the air passage between the vent hole 13 and the connecting pipe 10, which can block the second chamber 6 from continuing to exhaust to the outside, and can effectively prevent the second chamber 6 from having too much gas and continuous expansion to cause damage to the trachea;

[0057] Through the use of the control system, when the pressure sensing module detects that the air pressure in the second chamber is too high, it transmits a signal to the control module. The control module controls the inflation module to close and stop supplying air to the outer tube, so that the outer tube stops expanding. This can effectively prevent the continuous expansion of the outer tube from causing harm to the patient's trachea and improve the safety of intubation.

[0058] It should be noted that the model specifications of the pressure sensor 8 and the air pump 7 need to be selected and determined according to the actual specifications of the device, and the specific selection calculation method adopts the existing technology in this field, so it will not be described in detail.

[0059] The power supply and principle of the pressure sensor 8 and the air pump 7 are clear to those skilled in the art and will not be described in detail here.

[0060] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

[0061] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

Claims

1. A tracheal intubation tube with adjustable intubation diameter, comprising a tube body (1) and an adjusting member (2), characterized in that: One end of the tube body (1) is in communication with the adjusting member (2), and the adjusting member (2) is used to adjust the diameter of the tube body (1); The tube body (1) comprises an inner tube (3) and an outer tube (4); the outer tube (4) is arranged on the outer wall of the inner tube (3); a first chamber (5) is arranged between the inner tube (3) and the outer tube (4); a second chamber (6) is arranged in the tube wall of the outer tube (4); the second chamber (6) is communicated with the regulating member (2); A steel wire coil (17) is sleeved on the tube wall of the inner tube (3), and the steel wire coil (17) is located in the first chamber (5).

2. The endotracheal tube with adjustable tube diameter according to claim 1, characterized in that: The regulating member (2) comprises an air pump (7), a pressure sensor (8) and a decompression assembly (9); the air pump (7) is communicated with the second chamber (6); the pressure sensor (8) is fixedly mounted on the end of the outer tube (4), and the sensing part of the pressure sensor (8) is located in the second chamber (6); and the decompression assembly (9) is communicated with the second chamber (6).

3. The endotracheal tube with adjustable tube diameter according to claim 2, characterized in that: The decompression assembly (9) comprises a connecting pipe (10), a piston (11) and a telescopic member (12); the connecting pipe (10) is in communication with the second chamber (6); a plurality of vent holes (13) are provided on the side wall of the connecting pipe (10); the piston (11) is slidably mounted in the connecting pipe (10); one end of the telescopic member (12) is fixedly connected to the piston (11); and the telescopic member (12) is mounted in the connecting pipe (10).

4. The endotracheal intubation tube with adjustable intubation diameter according to claim 3, characterized in that: The telescopic member (12) comprises a spring (14), a fixed tube (15) and a movable tube (16); the movable tube (16) is slidably mounted in the fixed tube (15); one end of the spring (14) is fixedly connected to the inner bottom of the fixed tube (15); the other end of the spring (14) is fixedly connected to one end of the movable tube (16); and one end of the movable tube (16) away from the spring (14) is fixedly connected to the piston (11).

5. The endotracheal intubation tube with adjustable intubation diameter according to claim 1, characterized in that: The outer tube (4) is provided with scale lines on its wall.

6. The endotracheal intubation tube with adjustable intubation diameter according to claim 3, characterized in that: The number of the vent holes (13) is no less than two, the vent holes (13) are located on one side of the piston (11), and the vent holes (13) can be in communication with the second chamber (6).

7. The endotracheal intubation tube with adjustable intubation diameter according to claim 1, characterized in that: The tube wall of the outer tube (4) is arranged to be a smooth surface.

8. The endotracheal intubation tube with adjustable intubation diameter according to claim 1, characterized in that: It also includes a control system, which includes a pressure sensing module, a control module and an inflation module. The control module is connected to the pressure sensing module by signal, and the inflation module is connected to the control module by signal.

9. The endotracheal intubation tube with adjustable intubation diameter according to claim 8, characterized in that: The pressure sensing module is used to detect the pressure in the second chamber (6).

10. The endotracheal intubation tube with adjustable intubation diameter according to claim 8, characterized in that: The control module is used to receive data transmitted by the pressure sensing module and can control the start and stop of the inflation module.

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