Tracheostomy heat and humidity exchanger

Abstract

The utility model relates to the technical field of medical equipment, and discloses an air cutting type heat and humidity exchanger which comprises a shell, the two ends of the shell are communicated with a first air pipe and a second air pipe respectively, a containing cylinder and a filter element are arranged in the shell, humidifying paper is arranged in the containing cylinder, and the filter element is arranged in the containing cylinder. A plurality of air grooves extending in the axial direction of the containing cylinder are formed in the inner wall of the containing cylinder. The containing cylinder and the filter element are arranged in the shell, the filter element can filter impurities in inhaled air, the air grooves are formed in the inner wall of the containing cylinder, air exhaled by a patient can flow to the rear end of the humidifying paper from the air grooves, and moisture and heat are prevented from being absorbed by the front end of the humidifying paper. The contact time of the sucked air and the wet air can be prolonged, so that the heating and humidifying effects on the sucked air are enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a tracheotomy type heat and moisture exchanger. Background Art

[0002] Artificial noses, also called heat and moisture exchange filters, are mainly used for anesthesia of surgical patients, oxygen during breathing, filtering of fine particles and viruses in anesthetic gases, and regulating the temperature and humidity of exhaled gases. The heat and moisture exchange filter collects and utilizes the heat and moisture in the exhaled gas to warm and humidify the inhaled gas, and has the function of filtering bacteria and dust particles, acting as an effective barrier to prevent cross infection that may occur in clinical environments, and regulating and maintaining the temperature and humidity of the exhaled gas.

[0003] The existing heat and moisture exchange filters mostly use humidification paper or absorbent paper as the storage medium for heat and moisture in the exhaled gas. When the humidification paper or absorbent paper is short, the inhaled gas passes through a shorter distance through the storage medium and may not be fully heated and humidified. When the humidification paper or absorbent paper is long, the patient's exhaled gas will only be stored at the front end of the humidification paper or absorbent paper, and its rear end is relatively dry. The contact time between the inhaled gas and the storage medium is short, and the heating and humidification effect on the inhaled gas is poor.

[0004] Therefore, we proposed a tracheotomy type heat and moisture exchanger to solve the above problems. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies of the prior art in the above background technology, the purpose of the present utility model is to provide a tracheotomy type heat and moisture exchanger to solve the problems raised in the above background technology.

[0007] (II) Technical solution

[0008] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0009] A tracheotomy type heat and moisture exchanger comprises a shell, wherein the first and second trachea are connected at both ends of the shell respectively, a containing tube and a filter element are arranged inside the shell, a humidifying paper is arranged inside the containing tube, and a plurality of air grooves extending along the axial direction are opened on the inner wall of the containing tube.

[0010] Furthermore, the plurality of air grooves are arranged with equal arc lengths along the circumference of the accommodating tube, and are all through grooves.

[0011] Preferably, an extension plate is provided at one end of the accommodating cylinder close to the first air pipe, and an annular groove engaged with the extension plate is provided on the shell.

[0012] Furthermore, a separation ring is provided in the shell, and the accommodating cylinder and the filter element are respectively located on both sides of the separation ring.

[0013] Furthermore, the inner diameter of the separation ring is equal to the inner diameter of the accommodating cylinder.

[0014] Preferably, a conical tube is provided at the connection between the first air pipe and the second air pipe and the shell.

[0015] Preferably, a connecting ring is fixed to one end of the conical cylinder close to the shell, and the connecting ring is threadedly connected to the shell.

[0016] (III) Beneficial effects

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] By arranging a accommodating cylinder and a filter element inside the shell, the filter element can filter impurities in the inhaled air, and a plurality of air grooves are provided on the inner wall of the accommodating cylinder. The gas exhaled by the patient can flow from the air grooves to the rear end of the humidification paper to prevent moisture and heat from being absorbed by the front end of the humidification paper. The contact time between the inhaled air and the moist humidification paper can be increased to enhance the heating and humidification effect of the inhaled air. At the same time, the first trachea and the second trachea as well as the accommodating cylinder and the shell are detachably connected to facilitate the replacement of the filter element, the accommodating cylinder and the humidification paper to reduce the cost of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the external structure of the tracheotomy type heat and moisture exchanger of the utility model;

[0020] Figure 2 This is a schematic diagram of the disassembled structure of the tracheotomy type heat and moisture exchanger of the utility model;

[0021] Figure 3 This is an enlarged view of point A of the tracheotomy type heat and moisture exchanger of the utility model.

[0022] In the figure: housing 1, first air pipe 2, second air pipe 3, accommodating cylinder 4, filter element 5, humidifying paper 6, air groove 7, conical cylinder 8, connecting ring 9, extension plate 10, annular groove 11, and separating ring 12. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all of the embodiments. It should be noted that the words "front", "back", "left", "right", "up" and "down" used in the following description refer to the directions in the drawings, and the words "bottom surface" and "top surface", "inside" and "outside" refer to the directions toward or away from the geometric center of a specific component, respectively. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-3 As shown, the utility model provides a tracheotomy type heat and moisture exchanger, including a shell 1, wherein two ends of the shell 1 are respectively connected with a first trachea 2 and a second trachea 3, the first trachea 2 is connected to the patient's breathing tube, and the second trachea 3 is connected to a ventilator or external air, a accommodating tube 4 is arranged at one end of the shell 1 close to the first trachea 2, and a filter element 5 is arranged at the other end thereof, and a humidifying paper 6 is arranged inside the accommodating tube 4, and the accommodating tube 4 has a plurality of air grooves 7 arranged along its circumferential direction, and the plurality of air grooves 7 extend along its axial direction and are all through grooves, that is, the two ends of the plurality of air grooves 7 pass through the two end walls of the accommodating tube 4, and the arrangement of the plurality of air grooves 7 allows a certain gap to be provided between the outer wall of the humidifying paper 6 and the bottom wall of the air grooves 7, when the patient exhales, the exhaled gas can flow to the rear of the humidifying paper 6 through the air grooves 7, so that the rear of the humidifying paper 6 can also store a certain amount of moisture and heat, and when the patient inhales, the inhaled air can be in contact with the humidifying paper 6 for a longer time when passing through the humidifying paper 6, thereby improving the heating and humidifying effect of the inhaled air.

[0025] As a preferred technical solution of the utility model: an extension plate 10 is provided at one end of the accommodating tube 4 close to the first air pipe 2, and an annular groove 11 is provided on the shell 1 to engage with the extension plate 10. The arrangement of the extension plate 10 and the annular groove 11 can prevent the exhaled air from entering the gap between the accommodating tube 4 and the shell 1, causing waste of water and heat.

[0026] As a preferred technical solution of the utility model: a separator ring 12 is arranged in the shell 1, the accommodating cylinder 4 and the filter element 5 are respectively located on both sides of the separator ring 12, and the inner diameter of the separator ring 12 is equal to the inner diameter of the accommodating cylinder 4. The separator ring 12 plays a limiting role on the accommodating cylinder 4 and the filter element 5 to prevent the accommodating cylinder 4 and the filter element 5 from sliding freely in the shell 1. Since the inner diameter of the separator ring 12 is equal to the inner diameter of the accommodating cylinder 4, the exhaled air can be prevented from flowing into the filter element 5 from the air groove 7.

[0027] As a preferred technical solution of the utility model: the accommodating cylinder 4 is placed in the shell 1, and a conical cylinder 8 is provided at the connection between the first air pipe 2 and the second air pipe 3 and the shell 1. A connecting ring 9 is fixed to the end of the conical cylinder 8 close to the shell 1, and the connecting ring 9 is threadedly connected to the shell 1, so that the first air pipe 2 and the second air pipe 3 can be detachably connected to the shell 1, so as to replace the accommodating cylinder 4, the filter element 5 and the humidification paper 6. Relative to the overall replacement of the heat and moisture exchanger, the cost of use can be reduced.

[0028] Although the present invention has been described in detail with reference to the aforementioned embodiments, it should be noted that, in the present invention, unless otherwise clearly specified and limited, the terms such as “set”, “install”, “connected”, “connected”, “fixed”, etc. should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection; it can also be indirectly connected through an intermediate medium.

[0029] In the description of the present invention, 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. In this article, the meaning of "plurality" is two or more, unless otherwise clearly and specifically limited.

[0030] For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances; for technicians in this field, they can still modify the technical solutions recorded in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A tracheotomy type heat and moisture exchanger, comprising a housing (1), wherein two ends of the housing (1) are respectively connected to a first trachea (2) and a second trachea (3), wherein: The housing (1) is provided with a containing cylinder (4) and a filter element (5), the containing cylinder (4) is provided with a humidifying paper (6), and the inner wall of the containing cylinder (4) is provided with a plurality of air grooves (7) extending along its axial direction.

2. A tracheotomy type heat and moisture exchanger according to claim 1, characterized in that: The plurality of air grooves (7) are arranged with equal arc lengths along the circumference of the accommodating cylinder (4) and are all through grooves.

3. A tracheotomy type heat and moisture exchanger according to claim 2, characterized in that: An extension plate (10) is provided at one end of the accommodating cylinder (4) close to the first air pipe (2), and an annular groove (11) engaged with the extension plate (10) is provided on the shell (1).

4. The tracheotomy type heat and moisture exchanger according to claim 2, characterized in that: A separation ring (12) is provided in the housing (1), and the accommodating cylinder (4) and the filter element (5) are respectively located on both sides of the separation ring (12).

5. A tracheotomy type heat and moisture exchanger according to claim 4, characterized in that: The inner diameter of the separation ring (12) is equal to the inner diameter of the accommodating cylinder (4).

6. A tracheotomy type heat and moisture exchanger according to claim 2, characterized in that: Conical tubes (8) are provided at the connection points between the first air pipe (2) and the second air pipe (3) and the housing (1).

7. A tracheotomy type heat and moisture exchanger according to claim 6, characterized in that: A connecting ring (9) is fixed to one end of the conical cylinder (8) close to the shell (1), and the connecting ring (9) is threadedly connected to the shell (1).

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