Trachea cannula capable of adjusting temperature

Abstract

The utility model discloses a trachea cannula capable of adjusting temperature, which belongs to the technical field of medical auxiliary appliances and comprises a cannula body, one end of the cannula body is an insertion end with a diagonal plane, the other end of the cannula body is an input end, a Murphy hole is arranged on one side of the insertion end, and a bent section is arranged at the position of the cannula body close to the input end. A cylinder component communicated with the tube body is arranged at the input end, a heating assembly is arranged in the cylinder component, an adjusting mechanism is arranged on the cylinder component, an inner air bag is arranged on the outer wall of one side of the insertion end, an air guide tube communicated with the inner air bag is arranged on the outer wall of the tube body, and the air guide tube is separated from the tube body at the position close to the bent end and extends by 10-30 cm. According to the electric heating tube, the corresponding heating assembly can be triggered through the adjusting mechanism, and the temperature of gas in the tube body can be better adjusted on the premise that the electric heating tube is convenient to use.

Description

Technical Field

[0001] The utility model specifically relates to a temperature-adjustable endotracheal tube, belonging to the technical field of medical auxiliary appliances. Background Art

[0002] The use of endotracheal intubation refers to inserting a endotracheal tube into the patient's trachea through the mouth or nose to assist the patient's breathing, relieve airway obstruction, and absorb tracheal secretions. It is often used during surgery and to provide oxygen to sustain life in patients after surgery.

[0003] For example, the Chinese invention patent document, publication number CN112618901B, discloses a tracheal tube. In order to facilitate the insertion of the tracheal tube from the glottis and epiglottis into the trachea, a detachable nose cone is provided. The nose cone is connected to the flat-mouthed tube head of the tracheal tube through a reed. The reed has a certain rigidity, and the force applied to the nose cone during interventional surgery is not large. The rigidity of the reed is sufficient to support the advancement of the tracheal tube.

[0004] During the use of endotracheal intubation, oxygen needs to be intermittently delivered to the patient's body according to demand. The temperature of oxygen is usually low, and human organs are impacted by low-temperature gas for a long time, which will cause discomfort. In order to better regulate the gas temperature, the present invention is proposed. Utility Model Content

[0005] The purpose of the present invention is to address the deficiencies of the prior art and provide a temperature-adjustable endotracheal tube, so as to achieve the purpose of conveniently adjusting the temperature of the gas in the endotracheal tube.

[0006] A temperature-adjustable endotracheal tube comprises a tube body, commonly made of transparent PVC tubing, with graduated markings on the tube body to facilitate observation of insertion depth by medical personnel. One end of the tube body is an insertion end with a beveled surface, and the other end is an input end. A Murphy's hole, also known as Murphy's orifice, is provided on one side of the insertion end. The Murphy's orifice is located at the front end of the endotracheal tube, at the longer bevel, to increase ventilation flow. Even when the main opening of the endotracheal tube is blocked by the tracheal wall, air can still be discharged through the Murphy's orifice. The tube body has a curved section near the input end, and a cylindrical component connected to the tube body is provided on the input end. A heating component is provided within the cylindrical component, and an adjustment mechanism is provided on the cylindrical component.

[0007] Preferably, in order to facilitate the airflow into the trachea and reduce gas waste, an inner air bag is provided on the outer wall of one side of the insertion end, and an air guide tube connected to the inner air bag is provided on the outer wall of the tube body. The air guide tube is separated from the tube body at a position close to the bent end and extends 10-30 cm. The air guide tube is connected to an outer air bag, and a one-way valve mechanism is provided on the outer air bag. The outer air bag is used to judge the internal air pressure after inflation. The one-way valve mechanism used in conjunction with the outer air bag is a commonly used combination mechanism, and the gas can be directly injected with a syringe when in use.

[0008] Preferably, in order to enhance mechanical strength, the heating component includes an armored member supported within the cylindrical member, and a resistance wire insulated and laminated with the armored member.

[0009] Preferably, in order to expand the supporting area, the armor member is a plate-shaped member and is spirally embedded in the cylindrical member.

[0010] Preferably, in order to facilitate the use of resistance wire to generate heat, positive and negative electrode protrusions are respectively provided on the two opposite side outer walls of the cylindrical component, and one side of the positive and negative electrode protrusions is respectively connected to the resistance wire with the closest corresponding distance.

[0011] Preferably, in order to facilitate the adjustment of the heating value of the resistance wire, the outside of the negative pole protrusion on one side is connected through a negative pole power supply, and the adjustment mechanism is installed on the outside of the cylindrical part, including a clamp, and the clamp is fixed on both sides of the positive pole protrusion. A conductive adjustment strip is slidably clamped between the clamps, and one side of the adjustment strip is in contact with the positive pole protrusion. A handle-shaped piece is provided at the top of the adjustment strip. The adjustment strip needs to be connected to an external positive pole power supply, and the external power supply needs to have a safe and appropriate voltage and current output.

[0012] Preferably, in order to further facilitate use and make the component structure more compact and neat, the armor is in the shape of a ring plate, the head and tail ends of the resistance wire are close to each other, and extend from the same side to the outer wall of the cylinder to form an electrode block.

[0013] Preferably, in order to facilitate operation by medical personnel, the adjustment mechanism is installed on the outside of the cylindrical part, including a clamp part, which is fixed on both sides of the electrode block. A conductive adjustment strip is slidably clamped between the clamp parts. The adjustment strip is composed of independent strips insulated from each other and can respectively contact the corresponding side walls of the electrode block. A handle-like part is provided at the top of the adjustment strip.

[0014] Preferably, in order to facilitate heating by resistance wire, the heating component is a separate resistance wire, the resistance wire is spirally embedded in the cylindrical part, there are more than two resistance wires, and they are located at one end of the cylindrical part and are connected to each other to form a heating wire group, and one end of the resistance wire extends to the top of the cylindrical part.

[0015] Preferably, in order to facilitate medical personnel to adjust the temperature, the adjustment mechanism is installed on the top of the cylindrical part. The adjustment mechanism is a screw cover part that is rotatably clamped on the top of the cylindrical part. The top of the screw cover part is provided with a conductive sheet that contacts the resistance wire. The top of the cylindrical part is provided with a concave point corresponding to the heating wire in the heating wire group, and the top of the screw cover part is provided with a convex point used to cooperate with the concave point. The conductive sheet needs to be connected to the positive pole of the external power supply, and the other end of the mutual connection needs to be connected to the negative pole of the external power supply.

[0016] The technical effects and advantages of the utility model are as follows: the heating component of the utility model can emit different amounts of heat according to the degree of circuit connection, and can be adjusted accordingly according to actual needs during use. The adjustment mechanism can be easy to operate and use while being easy to operate. The coordinated use of the resistance wire and the armored parts can enhance the strength of the mechanism without affecting the heating use of the resistance wire, and is also convenient for temperature diffusion. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of Example 1 of the present utility model;

[0018] Figure 2 This is a schematic structural diagram of the heating component of Example 1 of the present utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the adjustment mechanism of Example 1 of the present utility model;

[0020] Figure 4 This is a schematic structural diagram of a heating component according to Example 2 of the present utility model;

[0021] Figure 5 This is a schematic diagram of the appearance of the adjustment structure of Example 3 of the present utility model;

[0022] Figure 6 This is a schematic diagram of the top of the cylindrical component of Example 3 of the present utility model;

[0023] Figure 7 This is a schematic diagram of the resistance wire structure of Example 3 of the present utility model;

[0024] Figure 8 This is a schematic diagram of the internal structure of the adjustment mechanism of Example 3 of the present utility model.

[0025] In the figure: 1. Tube body; 101. Inner airbag; 102. Outer airbag; 2. Cylindrical component; 3. Heating component; 301. Armor; 302. Resistance wire; 4. Adjustment mechanism; 411. Clamp; 412. Adjustment bar; 413. Handle; 421. Screw cap; 422. Conductive sheet; 423. Bump. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] Example 1

[0028] See also Figure 1 -- Figure 3 As shown, a temperature-adjustable endotracheal tube comprises a tube body 1, which is commonly made of transparent PVC tubing and has graduated markings on it to facilitate observation of the insertion depth by medical personnel. One end of the tube body 1 is an insertion end with a beveled surface, and the other end is an input end. A Murphy's hole, also known as Murphy's foramen, is provided on one side of the insertion end. This hole is located at the front end of the endotracheal tube, at the end with the longer bevel. This increases ventilation flow, allowing airflow to flow through the Murphy's foramen even when the main opening of the endotracheal tube is blocked by the tracheal wall. The tube body 1 has a curved section near the input end, which is provided with a cylindrical component 2 connected to the tube body 1. A heating assembly 3 is provided within the cylindrical component 2, and an adjustment mechanism 4 is provided on the cylindrical component 2.

[0029] To reduce gas waste, an inner air bag 101 is provided on the outer wall of one side of the insertion end, and an air guide tube connected to the inner air bag 101 is provided on the outer wall of the tube body 1. The air guide tube is separated from the tube body 1 near the bent end and extends 10-30 cm. An outer air bag 102 is connected to the air guide tube of the air guide tube. A one-way valve mechanism is provided on the outer air bag 102. The outer air bag 102 is used to judge the internal air pressure after inflation. The one-way valve mechanism used in conjunction with the outer air bag 102 is a commonly used combination mechanism. When in use, gas can be directly injected with a syringe.

[0030] The heating component 3 includes an armored member 301 supported in the cylindrical member 2, and a resistance wire 302 insulated and laminated with the armored member 301, which can enhance the mechanical strength.

[0031] The armor member 301 is a plate-shaped member and is spirally embedded in the cylindrical member 2, which can expand the supporting area.

[0032] Positive and negative electrode bumps are respectively provided on the two opposite side outer walls of the cylindrical component 2. One side of the positive and negative electrode bumps is respectively connected to the resistance wire 302 closest to the corresponding distance, so that heat can be generated by the resistance wire 302.

[0033] The outside of the negative electrode protrusion on one side is connected through a negative electrode power supply. The adjustment mechanism 4 is installed on the outside of the cylindrical part 2, including a clamp 411. The clamp 411 is fixed on both sides of the positive electrode protrusion. A conductive adjustment strip 412 is slidably clamped between the clamps 411. One side of the adjustment strip 412 is in contact with the positive electrode protrusion. A handle-shaped piece 413 is provided at the top of the adjustment strip 412. The adjustment strip 412 needs to be connected to an external positive electrode power supply. The external power supply needs to have a safe and appropriate voltage and current output, so that the heating value of the resistance wire 302 can be easily adjusted.

[0034] During use, when the temperature inside the endotracheal tube needs to be adjusted, it is only necessary to push the adjustment bar 412 to form a passage between the adjustment bar 412 and the negative electrode protrusion on the opposite side. As the adjustment bar 412 continues to move, the resistance wire 302 located between the positive electrode protrusion and the negative electrode protrusion can generate heat.

[0035] Example 2

[0036] See also Figure 3 As shown, based on Example 1, this embodiment divides the heating resistance wire 302 into multiple independent individuals, integrates the energized end to one side, and the armor 301 is in the shape of a ring plate. The head and tail ends of the resistance wire 302 are close to each other and extend from the same side to the outer wall of the cylinder to form an electrode block. This can further facilitate use and make the component structure more compact and neat.

[0037] The adjustment mechanism 4 is installed on the outside of the cylindrical part 2, and includes a clamp part 411. The clamp part 411 is fixed on both sides of the electrode block. A conductive adjustment strip 412 is slidably clamped between the clamp parts 411. The adjustment strip 412 is composed of independent strips insulated from each other and can contact the corresponding side walls of the electrode block respectively. A handle-shaped part 413 is provided at the top of the adjustment strip 412, which can facilitate operation by medical personnel.

[0038] During use, the number of connected resistance wires 302 can be changed by simply moving the adjustment bar 412 .

[0039] Example 3

[0040] See also Figure 5-Figure 8As shown, this embodiment proposes another adjustment mechanism 4 based on Example 1, which adjusts the resistance wire 302 connected to the circuit by rotation. The adjustment mechanism 4 is installed on the top of the cylindrical part 2. The adjustment mechanism 4 is a screw cover 421 that is rotatably clamped on the top of the cylindrical part 2. The top of the screw cover 421 is provided with a conductive sheet 422 that contacts the resistance wire 302. The top of the cylindrical part 2 is provided with a concave point corresponding to the heating wire in the heating wire group, and the top of the screw cover 421 is provided with a convex point 423 used in conjunction with the concave point. The conductive sheet 422 needs to be connected to the positive pole of the external power supply, and the other end of the mutual connection needs to be connected to the negative pole of the external power supply, so that medical staff can easily adjust the temperature.

[0041] The heating component 3 is a separate resistance wire 302, which is spirally embedded in the cylindrical part 2. There are more than two resistance wires 302, which are located at one end of the cylindrical part 2 and are connected to each other to form a heating wire group. One end of the resistance wire 302 extends to the top of the cylindrical part 2, so that it is convenient to use the resistance wire 302 for heating.

[0042] When in use, one only needs to rotate the screw cap 421 to disengage the current protrusion 423 and then engage the next concave point. The corresponding conductive sheet 422 can then contact one end of the next resistance wire 302, thereby changing the overall heating value. In actual applications, multiple heating wire groups can be spirally overlapped to improve the precision of temperature regulation.

[0043] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0044] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A temperature-adjustable endotracheal tube, comprising a tube body (1), one end of the tube body (1) being an insertion end with an oblique cut surface, the other end being an input end, a Murphy hole being provided on one side of the insertion end, and characterized in that: The tube body (1) is provided with a curved section near the input end, the input end is provided with a cylindrical component (2) connected to the tube body (1), a heating component (3) is provided in the cylindrical component (2), and an adjusting mechanism (4) is provided on the cylindrical component (2).

2. The temperature-adjustable endotracheal tube according to claim 1, wherein: An inner air bag (101) is provided on the outer wall of one side of the insertion end, and an airway tube connected to the inner air bag (101) is provided on the outer wall of the tube body (1). The airway tube is separated from the tube body (1) at a position close to the curved section and extends 10-30 cm. The airway tube is connected to an outer air bag (102), and a one-way valve mechanism is provided on the outer air bag (102).

3. The temperature-adjustable endotracheal tube according to claim 1, wherein: The heating component (3) comprises an armored part (301) supported in the cylindrical part (2), and a resistance wire (302) insulated and laminated with the armored part (301).

4. The temperature-adjustable endotracheal tube according to claim 3, wherein: The armor part (301) is a plate-shaped part and is spirally embedded in the cylindrical part (2).

5. The temperature-adjustable endotracheal tube according to claim 4, characterized in that: A positive electrode protrusion and a negative electrode protrusion are respectively provided on two opposite side outer walls of the cylindrical component (2), and one side of the positive electrode protrusion and the negative electrode protrusion are respectively connected to the resistance wire (302) with the closest corresponding distance.

6. The temperature-adjustable endotracheal tube according to claim 5, characterized in that: The outside of the negative electrode protrusion on one side is connected via a negative power supply. The adjustment mechanism (4) is installed on the outside of the cylindrical component (2) and includes a clamp (411). The clamp (411) is fixed to both sides of the positive electrode protrusion. A conductive adjustment strip (412) is slidably clamped between the clamps (411). One side of the adjustment strip (412) contacts the positive electrode protrusion, and a handle (413) is provided at the top of the adjustment strip (412).

7. The temperature-adjustable endotracheal tube according to claim 3, wherein: The armor (301) is in the shape of a ring plate, and the resistance wire (302) is close to the end and extends from the same side to the outer wall of the cylinder to form an electrode block.

8. The temperature-adjustable endotracheal tube according to claim 7, characterized in that: The adjustment mechanism (4) is installed on the outside of the cylindrical component (2) and includes a clamping member (411). The clamping member (411) is fixed on both sides of the electrode block. A conductive adjustment strip (412) is slidably clamped between the clamping members (411). The adjustment strip (412) is composed of independent strips that are insulated from each other and can respectively contact the corresponding side walls of the electrode block. A handle-shaped member (413) is provided at the top of the adjustment strip (412).

9. The temperature-adjustable endotracheal tube according to claim 1, wherein: The heating component (3) is a separate resistance wire (302), which is spirally embedded in the cylindrical component (2). There are two or more resistance wires (302), which are located at one end of the cylindrical component (2) and are connected to each other to form a heating wire group, and one end of the resistance wire (302) extends to the top of the cylindrical component (2).

10. The temperature-adjustable endotracheal tube according to claim 9, characterized in that: The adjusting mechanism (4) is mounted on the top of the cylindrical component (2). The adjusting mechanism (4) is a screw cap (421) that is rotatably engaged with the top of the cylindrical component (2). The top of the screw cap (421) is provided with a conductive sheet (422) that contacts the resistance wire (302). The top of the cylindrical component (2) is provided with a concave point corresponding to the heating wire in the heating wire group. The top of the screw cap (421) is provided with a convex point (423) that cooperates with the concave point.

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