A rotatable wet heat exchange filter

Abstract

This utility model discloses a rotatable heat and moisture exchange filter, including an upper shell, a lower shell, a first connector, and a second connector. The lower shell contains electrostatic cotton and corrugated humidifying paper. The upper shell is fastened to the lower shell and fixed by ultrasonic welding. An auxiliary port is provided on the upper shell, and a protective cap is installed on the auxiliary port. A first interface is located at the center of the top of the upper shell, and an annular first groove is formed on the side wall of the first interface. A first slider matching the first groove is provided on the inner wall of the first connector, and the first connector is fitted onto the first interface. A second interface is located at the center of the bottom of the lower shell, and an annular second groove is formed on the side wall of the second interface. A second slider matching the second groove is provided on the inner wall of the second connector, and the second connector is fitted onto the second interface. This utility model, by incorporating a rotatable connector, prevents the breathing tubing from being kinked or compressed when the patient's position changes, thereby improving the stability of the breathing tubing ventilation.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a rotatable heat and moisture exchange filter. Background Technology

[0002] A heat and moisture exchange filter is a passive humidification device that mimics the function of the human nasal cavity. It is used to maintain airway humidity and temperature and reduce respiratory moisture loss during mechanical ventilation. Traditional artificial noses have two fixed connection connectors: one connects to the patient's endotracheal tube and laryngeal mask airway, and the other connects to equipment such as a ventilator. When the patient's position changes, such as turning over or sitting up, it may pull on the breathing tube, causing the tube to twist, become compressed, or even dislodge, increasing the nursing burden. Utility Model Content

[0003] The purpose of this invention is to provide a rotatable heat and moisture exchange filter. This device, by setting a rotating joint, prevents the breathing tubing from being kinked or compressed when the patient's body position changes, thereby improving the stability of the breathing tubing ventilation.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a rotatable heat and moisture exchange filter, comprising an upper shell, a lower shell, a first connector, and a second connector. The lower shell contains electrostatic cotton and corrugated humidifying paper, and the upper shell is fastened to the lower shell. A first interface is located at the center of the top of the upper shell, and an annular first groove is formed on the side wall of the first interface. A first slider matching the first groove is provided on the inner wall of the first connector. The first connector is fitted onto the first interface, and the first slider is slidably connected within the first groove. A second interface is located at the center of the bottom of the lower shell, and an annular second groove is formed on the side wall of the second interface. A second slider matching the second groove is provided on the inner wall of the second connector. The second connector is fitted onto the second interface, and the second slider is slidably connected within the second groove.

[0005] Optionally, the first interface has an annular first sealing groove, and a sealing gasket is installed in the first sealing groove.

[0006] Optionally, the second interface has an annular second sealing groove, and a sealing gasket is installed in the second sealing groove.

[0007] Optionally, the sealing gasket is coated with lubricant.

[0008] Optionally, the first sealing groove is positioned closer to the upper housing than the first sliding groove, and the second sealing groove is positioned closer to the lower housing than the second sliding groove.

[0009] Optionally, the upper and lower housings are fixed together by ultrasonic welding.

[0010] Optionally, an auxiliary port is provided on the upper housing, and a protective cap is installed on the auxiliary port.

[0011] The rotatable heat and moisture exchange filter of this invention has the following advantages: (1) The structure is simple. The first and second connectors can rotate. When the patient's position changes, the rotation of the connectors can prevent the breathing tube from bending, being compressed, or falling off, thereby improving the stability of the breathing tube ventilation and reducing nursing pressure.

[0012] (2) The sealing gasket can improve the sealing performance of the device and prevent air leakage.

[0013] (3) The lubricant enables the first and second joints to rotate smoothly and avoids jamming. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings. In the description of the present invention, terms such as “center”, “upper”, “lower”, “front”, “rear”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inner”, and “outer” indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0016] The terms “first” and “second” are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated.

[0017] like Figure 1As shown, a rotatable heat and moisture exchange filter includes an upper housing 1, a lower housing 2, a first connector 3, and a second connector 4. The lower housing 2 contains electrostatic cotton 5 and corrugated humidifying paper 6. The upper housing 1 is fastened to the lower housing 2 and fixed by ultrasonic welding to ensure a tight connection between the two, thus ensuring the humidification effect and filtration efficiency against bacteria and viruses. An auxiliary port 7 is provided on the upper housing 1 for carbon dioxide detection. The auxiliary port 7 uses a 6:100 Luer connector and is fitted with a protective cap 8 to prevent air leakage. A first interface 9 is located at the center of the top of the upper housing 1. An annular first groove 10 is formed on the side wall of the first interface 9. A first slider 11, matching the first groove 10, is provided on the inner wall of the first connector 3. The first connector 3 is fitted onto the first interface 9, and the first slider 11 is slidably connected within the first groove 10. The first interface 9 has an annular first sealing groove 12, which is closer to the upper housing 1 than the first sliding groove 10, thus improving the sealing performance of the device. A sealing gasket 13 is installed inside the first sealing groove 12, and lubricant is applied to the sealing gasket 13. The lower housing 2 has a second interface 14 at the center of its bottom. An annular second sliding groove 15 is formed on the side wall of the second interface 14. A second slider 16, matching the second sliding groove 15, is provided on the inner wall of the second connector 4. The second connector 4 is fitted onto the second interface 14, and the second slider 16 is slidably connected within the second sliding groove 15. The second interface 14 also has an annular second sealing groove 17, which is closer to the lower housing 2 than the second sliding groove 15, further improving the sealing performance of the device. A sealing gasket 13 is installed inside the second sealing groove 17, and lubricant is applied to the sealing gasket 13.

[0018] The first connector 3 connects to equipment such as a ventilator via the breathing tubing, and the second connector 4 connects to the patient's endotracheal tube, laryngeal mask airway, or other equipment via the breathing tubing. Both connectors 3 and 4 are capable of 360° rotation. When the patient's position changes, the rotation of connectors 3 and 4 automatically adjusts the position of the breathing tubing, preventing bending, kinking, compression, or dislodgement, thus improving the stability of ventilation. It also allows for flexible adjustment of the breathing tubing during patient transfers, reducing the burden on nursing staff.

[0019] The embodiments described above are merely some embodiments of this utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the protection scope of this utility model.

Claims

1. A rotatable heat and moisture exchange filter, characterized in that: The device includes an upper shell, a lower shell, a first connector, and a second connector. The lower shell contains electrostatic cotton and corrugated wetting paper. The upper shell is fastened to the lower shell. A first interface is located at the center of the top of the upper shell. An annular first groove is formed on the side wall of the first interface. A first slider matching the first groove is provided on the inner wall of the first connector. The first connector is fitted onto the first interface, and the first slider is slidably connected within the first groove. A second interface is located at the center of the bottom of the lower shell. An annular second groove is formed on the side wall of the second interface. A second slider matching the second groove is provided on the inner wall of the second connector. The second connector is fitted onto the second interface, and the second slider is slidably connected within the second groove.

2. The rotatable heat and moisture exchange filter as described in claim 1, characterized in that: The first interface has an annular first sealing groove, and a sealing gasket is installed in the first sealing groove.

3. The rotatable heat and moisture exchange filter as described in claim 2, characterized in that: The second interface has an annular second sealing groove, and a sealing gasket is installed in the second sealing groove.

4. The rotatable heat and moisture exchange filter as described in claim 2 or 3, characterized in that: The sealing gasket is coated with lubricant.

5. The rotatable heat and moisture exchange filter as described in claim 3, characterized in that: The first sealing groove is located closer to the upper housing than the first sliding groove, and the second sealing groove is located closer to the lower housing than the second sliding groove.

6. The rotatable heat and moisture exchange filter as described in claim 1, characterized in that: The upper and lower shells are fixed together by ultrasonic welding.

7. The rotatable heat and moisture exchange filter as claimed in claim 1, characterized in that: An auxiliary port is provided on the upper housing, and a protective cap is installed on the auxiliary port.

Images