Portable Exhaled Breath Condensate Collection Device

By designing a portable exhaled breath condensate collection device, and utilizing an innovative structure of a U-shaped condenser tube and a fixing mechanism, the issues of stability and portability during use were resolved, achieving efficient condensate collection and convenient carrying.

CN224421001UActive Publication Date: 2026-06-30THE 940TH HOSPITAL OF THE CHINESE PEOPLES LIBERATION ARMY JOINT LOGISTICS SUPPORT FORCE

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
THE 940TH HOSPITAL OF THE CHINESE PEOPLES LIBERATION ARMY JOINT LOGISTICS SUPPORT FORCE
Filing Date
2025-03-07
Publication Date
2026-06-30

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Abstract

This utility model provides a condensate collection device, belonging to the field of medical device technology, which solves the technical problem of portable exhaled breath condensate collection devices. The portable exhaled breath condensate collection device includes a condensation tank. The fixing mechanism includes a fixing plate fixed to the bottom of the condensation tank. Elastic blocks are provided on both sides of the top of the fixing plate. Triangular plates are fixed to the top of the two elastic blocks on their adjacent sides. The bottom of the two triangular plates is arc-shaped and fits the outer surface of the U-shaped condenser tube. Sealing caps are provided at both ends of the top of the U-shaped condenser tube. One end of the U-shaped condenser tube has a communicating air outlet, and the other end has a communicating air inlet. Semi-circular caps are provided on both sides of the top of the condensation tank. This utility model improves the stability of the U-shaped condenser tube during use, increases the condensation effect, and the stable structure makes the installation and disassembly of the condenser tube easier, facilitating subsequent maintenance and cleaning.
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Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, and relates to a condensate collection device, particularly a portable exhaled breath condensate collection device. Background Technology

[0002] Exhaled condensate (EBC) testing is a non-invasive method for detecting respiratory tract inflammation that has been developed in recent years. It has the advantages of being simple, easy to perform, and highly reproducible, and is especially suitable for patients with severe conditions, the elderly, and children (including infants). Changes in certain components of EBC can reflect the pathophysiological state of the lungs and airways, and it is expected to become a means for screening early lung cancer, monitoring disease progression, and assessing treatment efficacy in some populations.

[0003] Current equipment collects exhaled condensate through exhalation masks, which are typically handheld. This handheld method is easily affected by external interference, impacting subsequent testing. Furthermore, after exhalation, the gas is liquefied and collected by a condenser. However, the condenser shakes during use, leading to a faster gas loss rate and affecting the efficiency of gas condensation and collection. Therefore, there is an urgent need for a portable exhaled condensate collection device to solve these problems. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing a portable exhaled breath condensate collection device. The technical problem this invention aims to solve is: how to collect exhaled breath condensate and achieve a portable effect.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] A portable exhaled breath condensate collection device includes a condensation tank, an interior U-shaped condensation tube, a fixing mechanism at the bottom and top of the condensation tank for fixing the U-shaped condensation tube, an exhalation mask at one end of the condensation tank, and a stabilizing mechanism on the outer surface of the exhalation mask for stabilizing it.

[0007] The fixing mechanism includes a fixing plate fixed to the bottom of the condenser tank. The top two sides of the fixing plate are provided with elastic blocks. The top of the two elastic blocks that are close to each other is fixed with a triangular plate. The bottom of the two triangular plates is arc-shaped and fits the outer surface of the U-shaped condenser tube. The top two ends of the U-shaped condenser tube are provided with sealing caps. One end of the U-shaped condenser tube is provided with a communicating air outlet. The other end of the top of the U-shaped condenser tube is provided with a communicating air inlet. The top two sides of the condenser tank are provided with semi-circular caps, and one end of each semi-circular cap is rotatably connected to one end of the top of the condenser tank.

[0008] The working principle of this utility model is as follows: by setting an elastic locking block, the U-shaped condenser tube is inserted into the bottom of the U-shaped condenser tube. The triangular plate can be used to clamp and fix the outer surface of the bottom of the U-shaped condenser tube, ensuring the stability of the U-shaped condenser tube during use.

[0009] Two semicircular grooves are formed on the side of the two semicircular covers that are close to each other, and the inner diameter of the semicircular grooves is larger than the outer diameter of the U-shaped condenser tube. The inner walls of the multiple semicircular grooves are provided with elastic pads.

[0010] With the above structure, the semi-circular groove and elastic pad can fix the outer surfaces of both ends of the U-shaped condenser tube, improving its stability during the condensation process.

[0011] The two semi-circular covers are provided with a first magnet and a second magnet at the other end of their sides that are close to each other, and the first magnet and the second magnet are attracted to each other.

[0012] The stabilizing mechanism includes telescopic straps fixed to the outer surfaces of both sides of the exhalation mask, one of the telescopic straps having a sub-hook and loop fastener on one side, and the other telescopic strap having a female hook and loop fastener on the side away from the sub-hook and loop fastener.

[0013] The exhalation mask has an air inlet tube at the top, and the air inlet tube is equipped with a first one-way valve. A sealing gasket is provided on one side of the exhalation mask.

[0014] The exhalation mask can be stabilized using the inner and outer Velcro straps.

[0015] The outer surface of the condenser is equipped with a mask module, and the mask module is compatible with an exhalation mask.

[0016] The bottom of the outer wall of the exhalation mask away from the Velcro is connected to a communicating air tube, the other end of which is connected to the air inlet. A second one-way valve is provided inside the air tube.

[0017] With the above structure, the exhalation mask can be placed on the outer surface of the mask module and then conveniently stored by aligning it with the sub-Hook and loop fasteners and the first one-way valve.

[0018] Compared with the prior art, the portable exhaled breath condensate collection device of this invention has the following advantages:

[0019] 1. In this utility model, due to the use of elastic locking blocks and triangular plates, when the U-shaped condenser tube moves down and contacts the triangular plate at an angle, it will squeeze the triangular plate and the elastic locking block. When the bottom of the U-shaped condenser tube is located at the bottom of the triangular plate, the triangular plate will clamp and fix the bottom of the U-shaped condenser tube. Then, the top of both ends of the U-shaped condenser tube can be fixed by the two semi-circular caps, thereby improving the stability of the U-shaped condenser tube during use and increasing the condensation effect. The stable structure makes the installation and disassembly of the condenser tube easier and facilitates subsequent maintenance and cleaning.

[0020] 2. In this utility model, due to the use of a telescopic strap, a male Velcro strap, and a female Velcro strap, when the device is finished using it, the exhalation mask is hung on the outer wall of the mask module, and then the exhalation mask is fixed by the male Velcro strap and the female Velcro strap, thereby improving the portability of the device, reducing the space occupied, and making it convenient to carry the device. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the end face of the portable exhaled breath condensate collection device of this utility model;

[0022] Figure 2 This is a three-dimensional structural diagram of the other end of the portable exhaled breath condensate collection device of this utility model;

[0023] Figure 3 This is a schematic diagram of the first partial structure of the fixing mechanism in this utility model;

[0024] Figure 4 This is a schematic diagram of the second partial structure of the fixing mechanism in this utility model.

[0025] In the diagram, 1. Condenser tank; 2. U-shaped condenser tube; 201. Sealing cap; 202. Air outlet; 203. Air inlet; 204. Fixing plate; 205. Elastic locking block; 206. Triangular plate; 3. Semi-circular cap; 300. Semi-circular groove; 301. Elastic pad; 302. First magnet; 303. Second magnet; 4. Exhalation mask; 401. Telescopic strap; 402. Female Velcro; 403. Sealing gasket; 404. Female Velcro; 405. First one-way valve; 5. Air duct; 501. Second one-way valve; 6. Mask module. Detailed Implementation

[0026] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0027] like Figures 1-4As shown, a portable exhaled breath condensate collection device includes a condenser tank 1, with a U-shaped condenser tube 2 inside the condenser tank 1. The bottom and top of the condenser tank 1 are equipped with fixing mechanisms to secure the U-shaped condenser tube 2. One end of the condenser tank 1 is equipped with an exhalation mask 4, and the outer surface of the exhalation mask 4 is equipped with a stabilizing mechanism for its stability. The fixing mechanism includes a fixing plate 204 fixed to the bottom of the condenser tank 1. Elastic blocks 205 are provided on both sides of the top of the fixing plate 204. Triangular plates 206 are fixed to the top of the two elastic blocks 205 that are close to each other. The bottoms of the two triangular plates 206 are arc-shaped and fit the outer surface of the U-shaped condenser tube 2. Sealing caps 201 are provided at both ends of the top of the U-shaped condenser tube 2. One end of the U-shaped condenser tube 2 has a communicating outlet 202, and the other end of the top of the U-shaped condenser tube 2 has a communicating inlet 203. Semi-circular caps 3 are provided on both sides of the top of the condenser tank 1, and one end of each semi-circular cap 3 is rotatably connected to one end of the top of the condenser tank 1. Two semi-circular grooves 300 are formed on the side of the two semi-circular covers 3 that are close to each other. The inner diameter of the semi-circular grooves 300 is larger than the outer diameter of the U-shaped condenser tube 2. The inner walls of the semi-circular grooves 300 are provided with elastic pads 301. A first magnet 302 and a second magnet 303 are provided at the other end of the side of the two semi-circular covers 3 that are close to each other. The first magnet 302 and the second magnet 303 are attracted to each other. The stabilizing mechanism includes telescopic straps 401 fixed to the outer surfaces of both sides of the exhalation mask 4. One side of one telescopic strap 401 is provided with a sub-hook and loop fastener 402, and the other side of the telescopic strap 401 away from the sub-hook and loop fastener 402 is provided with a female hook and loop fastener 404. The top of the exhalation mask 4 is provided with an air inlet pipe, and the air inlet pipe is provided with a first one-way valve 405. A sealing gasket 403 is provided on one side of the exhalation mask 4. The outer surface of the condenser tank 1 is provided with a mask module 6, and the mask module 6 is adapted to the exhalation mask 4. The bottom of the outer wall of the exhalation mask 4 away from the Velcro 402 is connected to a communicating air tube 5. The other end of the air tube 5 is connected to the air inlet 203. The air tube 5 is equipped with a second one-way valve 501.

[0028] The working principle of this utility model is as follows: First, put on the exhalation mask 4, then secure it with two telescopic straps 401. The tightness of the two telescopic straps 401 can be adjusted freely. Then, secure the mask to the female Velcro 404 with the male Velcro 402. The user can inhale through the first one-way valve 405, which prevents gas from escaping. Next, open the two semi-circular covers 3 and insert the U-shaped condenser tube 2 into the top of the condenser tank 1. The bottom of the U-shaped condenser tube 2 will contact the angled corner of the triangular plate 206, squeezing the elastic locking block 205. When the bottom of the U-shaped condenser tube 2 is below the triangular plate 206, the elastic locking block 205 will reset, securing the U-shaped condenser tube 2. Then, fill the condenser tank 1 with condensate or ice to cool the outer wall of the U-shaped condenser tube 2. Finally, close the semi-circular covers 3. The round cover 3 and the two ends of the U-shaped condenser tube 2 are located in the semi-circular groove 300. Then, the first magnet 302 and the second magnet 303 attract each other and fix the semi-circular cover 3. Then, the other end of the air guide tube 5 is connected to the air inlet 203. At this time, the exhaled gas can pass through the air guide tube 5 to the inside of the U-shaped condenser tube 2. Through the condensation principle, part of the gas in the exhaled gas is liquefied and stays inside the U-shaped condenser tube 2. The other part of the gas will be discharged through the air outlet 202. When the collection is complete, the U-shaped condenser tube 2 is removed and the sealing cover 201 is opened to export the condensed liquid inside the U-shaped condenser tube 2. It can then be used for testing. When finished, the exhalation mask 4 is placed on the surface of the mask module 6. Then, the exhalation mask 4 can be fixed by the telescopic strap 401, the female Velcro 402, and the female Velcro 404, thereby improving the portability of use, reducing the space occupied, and making it easy to carry.

[0029] In summary, in this utility model, the bottom of the U-shaped condenser tube 2 can be fixed by the elastic locking block 205, and the outer surfaces of both ends of the U-shaped condenser tube 2 can be fixed by the semi-circular cover 3 and the elastic soft pad 301. This can achieve a stable effect when collecting and condensing exhaled air, reduce the rate of gas leakage, and ensure the efficiency of condensation collection.

[0030] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A portable exhaled breath condensate collection device comprising a condensation bucket (1), characterized in that, The condenser (1) is provided with a U-shaped condenser tube (2) inside. The bottom and top of the condenser (1) are provided with fixing mechanisms to fix the U-shaped condenser tube (2). One end of the condenser (1) is provided with an exhalation mask (4). The outer surface of the exhalation mask (4) is provided with a stabilizing mechanism to stabilize it. The fixing mechanism includes a fixing plate (204) fixed inside the bottom of the condenser (1). The top two sides of the fixing plate (204) are provided with elastic blocks (205). The top of the two elastic blocks (205) that are close to each other are fixed with triangular plates (206). The bottom of the two triangular plates (206) are arc-shaped and adapted to the outer surface of the U-shaped condenser (2). The top two ends of the U-shaped condenser (2) are provided with sealing caps (201). The top of one end of the U-shaped condenser (2) is provided with a communicating air outlet (202). The other end of the top of the U-shaped condenser (2) is provided with a communicating air inlet (203). The top two sides of the condenser (1) are provided with semi-circular caps (3), and one end of each of the two semi-circular caps (3) is rotatably connected to one end of the top of the condenser (1).

2. The portable exhaled breath condensate collection device of claim 1, wherein, Two semicircular grooves (300) are provided on the side of the two semicircular covers (3) that are close to each other, and the inner diameter of the semicircular grooves (300) is larger than the outer diameter of the U-shaped condenser tube (2). The inner walls of the multiple semicircular grooves (300) are provided with elastic pads (301).

3. The portable exhaled breath condensate collection device of claim 2, wherein, The two semi-circular covers (3) are provided with a first magnet (302) and a second magnet (303) at the other end of their sides that are close to each other, and the first magnet (302) and the second magnet (303) attract each other.

4. The portable exhaled breath condensate collection device of claim 1, wherein, The stabilizing mechanism includes telescopic straps (401) fixed to the outer surfaces of both sides of the exhalation mask (4), one of the telescopic straps (401) having a sub-hook and loop fastener (402) on one side, and the other telescopic strap (401) having a female hook and loop fastener (404) on the side away from the sub-hook and loop fastener (402).

5. The portable exhaled breath condensate collection device of claim 4, wherein, The exhalation mask (4) has an air inlet pipe at the top and a first one-way valve (405) at the air inlet pipe. A sealing gasket (403) is provided on one side of the exhalation mask (4).

6. The portable exhaled breath condensate collection device of claim 5, wherein, The outer surface of the condenser (1) is provided with a mask module (6), and the mask module (6) is compatible with the exhalation mask (4).

7. The portable exhaled breath condensate collection device of claim 4, wherein, The bottom of the outer wall of the exhalation mask (4) away from the Velcro (402) is connected to a communicating air tube (5). The other end of the air tube (5) is connected to the air inlet (203). The air tube (5) is equipped with a second one-way valve (501).