A novel breathing circuit

Abstract

The application relates to the field of medical equipment, in particular to a novel breathing circuit which comprises a communication pipe, the inside of the communication pipe is provided with a first cavity and a second cavity, a first pipe and a second pipe are arranged on the communication pipe, the first pipe is communicated with the first cavity, the second pipe is communicated with the second cavity, a shell is further arranged, a pressing pad is arranged in the shell, a mesh plate is arranged in the shell, the surface of the mesh plate, the surface of the pressing pad and the inner wall of the shell are all abutted with the surface of the communication pipe, a waterproof and breathable film is arranged on the mesh plate, the shell, the mesh plate and the waterproof and breathable film limit a storage cavity, the storage cavity is filled with moisture-absorbing particles; gas flows through the first pipe, the storage cavity, the second pipe and a three-way pipe in sequence through a breathing machine interface, moisture can contact the moisture-absorbing particles, the moisture-absorbing effect of the moisture-absorbing particles is used to effectively avoid the gathering of condensed water, when the moisture exceeds the moisture-absorbing effect, the condensed water can be prevented from contacting the patient by the waterproof and breathable film, and the gas flow effect is ensured.

Description

Technical Field

[0001] This application relates to the field of medical device technology, and in particular to a novel breathing circuit. Background Technology

[0002] The breathing circuit is the core component of a ventilator that enables gas delivery. It connects the patient and the ventilator and is responsible for delivering humidified and warmed gas to the patient's airway and expelling exhaled waste gas. Modern ventilators are usually equipped with an active humidifier, which heats the inhaled gas to near body temperature and saturates it with humidification. When warm and humid gas passes through the breathing circuit (especially in long tubing or exposed to low-temperature environments), the gas temperature gradually decreases, causing water vapor to condense into liquid water. If this condensate is not drained in time, it can easily accumulate and flow into the ventilator or the patient's airway, causing medical accidents.

[0003] Conventional methods of insulating the breathing circuit reduce the temperature difference and thus reduce condensation. However, this method is greatly affected by external temperature factors and condensation is inevitable. When the liquid water accumulated in the tubing enters the patient's airway due to gravity or airflow changes, it may cause choking or even aspiration. Cold liquid stimulation of the airway may induce reflexive bronchoconstriction and worsen breathing difficulties. Utility Model Content

[0004] This application provides a novel breathing circuit to address the technical problem that inventors recognize that conventional methods of insulating breathing circuits reduce condensation by lowering the temperature difference. However, this method is greatly affected by external temperature factors and condensation is inevitable. When the liquid water accumulated in the tubing enters the patient's airway due to gravity or airflow changes, it may cause choking or even aspiration. The cold liquid irritating the airway may induce reflexive bronchoconstriction, exacerbating breathing difficulties.

[0005] This application provides a novel breathing circuit, including a connecting tube with a first chamber and a second chamber inside. A first tube and a second tube are disposed on the connecting tube, the first tube being connected to the first chamber and the second tube being connected to the second chamber. The circuit also includes a shell, with a compression pad and a mesh plate disposed inside the shell. The surface of the mesh plate, the surface of the compression pad, and the inner wall of the shell all abut against the surface of the connecting tube. A waterproof and breathable membrane is disposed on the mesh plate, abutting against the surface of the second tube. The shell, the mesh plate, and the waterproof and breathable membrane define a storage cavity filled with moisture-absorbing particles.

[0006] In any of the above technical solutions, a T-junction is further provided at one end of the second tube.

[0007] In any of the above technical solutions, one end of the three-way tube is detachably connected to an endotracheal tube.

[0008] In any of the above technical solutions, a sealing cap is further included, which is detachably connected to one end of the tee pipe.

[0009] In any of the above technical solutions, both the first pipe and the second pipe have a bent section and a straight section, and the straight section adopts a corrugated pipe structure.

[0010] In any of the above technical solutions, the surface of the sealing cover is provided with a connecting strip, and the other end of the connecting strip is connected to the surface of the tee pipe.

[0011] In any of the above technical solutions, the other end of the first tube is detachably connected to a ventilator interface.

[0012] In any of the above technical solutions, the other end of the first tube and the ventilator interface are detachably connected by threads or rubber pads.

[0013] In any of the above technical solutions, the endotracheal tube at one end of the three-way tube is further detachably connected via threads or a rubber gasket.

[0014] In any of the above technical solutions, the outer shell is further made of a transparent material.

[0015] The main benefits of this application are: Gas flows sequentially through the ventilator interface through tube 1, the storage chamber, tube 2, and the three-way tube. Moisture comes into contact with the moisture-absorbing particles, which effectively prevent condensation from accumulating. At the same time, when the moisture exceeds its absorption capacity, condensation can be prevented from contacting the patient by the waterproof and breathable membrane, while ensuring gas flow.

[0016] It should be understood that the foregoing general description and the following detailed description are for illustrative purposes only and do not necessarily limit the scope of this application. The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate the subject matter of this application. Furthermore, the specification and drawings serve to explain the principles of this application. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram (front view) of the breathing circuit structure according to an embodiment of this application. Figure 2 This is a schematic diagram (front sectional view) of pipe No. 1, pipe No. 2, connecting pipe, and outer shell and their connection structure according to an embodiment of this application. Figure 3 This is a top view of the outer shell and its internal structure in an embodiment of this application. Figure 4 This is a schematic diagram (top view) of the connecting pipe structure in an embodiment of this application.

[0019] icon: 100 - Connecting pipe; 101 - No. 1 cavity; 102 - No. 2 cavity; 103 - No. 1 pipe; 104 - Outer shell; 105 - Squeezing pad; 106 - Mesh plate; 107 - Waterproof and breathable membrane; 108 - Moisture-absorbing particles; 109 - T-connector; 110 - Sealing cap; 111 - Connecting strap; 112 - No. 2 pipe. Detailed Implementation

[0020] The technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this application, but not all embodiments.

[0021] Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0022] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application 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 this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0024] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 In one or more embodiments, a novel breathing circuit is provided, including a connecting tube 100, the connecting tube 100 having a first chamber 101 and a second chamber 102 inside, a first tube 103 and a second tube 112 disposed on the connecting tube 100, the first tube 103 being connected to the first chamber 101, and the second tube 112 being connected to the second chamber 102, and also including a housing 104, the housing 104 having a compression pad 105 disposed inside, and the housing 104 having a mesh plate 106 disposed inside, the surface of the mesh plate 106 and the compression pad 105 being connected to the first chamber 101. The surface of tube 05 and the inner wall of the outer shell 104 are in contact with the surface of the connecting tube 100. A waterproof and breathable membrane 107 is provided on the mesh plate 106. The waterproof and breathable membrane 107 is in contact with the surface of the second tube 112. The outer shell 104, mesh plate 106 and waterproof and breathable membrane 107 restrict the storage cavity. The storage cavity is filled with moisture-absorbing particles 108. One end of the second tube 112 is connected to a three-way tube 109. One end of the three-way tube 109 is detachably connected to an endotracheal tube. The other end of the first tube 103 is detachably connected to a ventilator interface.

[0025] In this embodiment, the outer shell 104 is pre-fitted onto the surface of the connecting tube 100, and the outer shell 104 is fixed by the rebound effect of the compression pad 105. At this time, the surface of the mesh plate 106, the surface of the compression pad 105, and the inner wall of the outer shell 104 are all in contact with the surface of the connecting tube 100. Then, the three-way tube 109 is connected to the second tube 112 and the endotracheal tube, respectively, while the other end of the first tube 103 is connected to the ventilator interface. At this time, the gas flows out through the breathing interface and flows sequentially through the first tube 103, the storage chamber, the second tube 112, the three-way tube 109, and the endotracheal tube to supply the patient. The moisture will come into contact with the moisture-absorbing particles 108. With the moisture-absorbing effect of the moisture-absorbing particles 108, the accumulation of condensate is effectively avoided. At the same time, when the moisture exceeds its moisture-absorbing effect, the condensate can be prevented from contacting the patient by the waterproof and breathable membrane 107, while ensuring the gas flow effect.

[0026] Please see Figure 1 In some embodiments, a sealing cap 110 is also included. The sealing cap 110 is detachably connected to one end of the tee pipe 109. A connecting strip 111 is provided on the surface of the sealing cap 110, and the other end of the connecting strip 111 is connected to the surface of the tee pipe 109.

[0027] In this embodiment, the sealing cap 110 can cover one end of the three-way tube 109, which is used for the insertion of the suction tube. When the suction tube does not need to be inserted, the sealing cap 110 covers one end of the three-way tube 109. The connection between the sealing cap 110 and the three-way tube 109 is achieved through a detachable connection using structures such as rubber gaskets and threads. The connecting strap 111 is provided to ensure that the sealing cap 110 will not fall off or be lost.

[0028] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 In some embodiments, both tube 103 and tube 112 have a bent section and a straight section. The straight section adopts a corrugated pipe structure, and the outer shell 104 is made of transparent material.

[0029] In this embodiment, the straight section adopts a corrugated pipe structure, which can ensure that the straight pipe can be folded or bent; the setting of the bent section makes the outer shell 104 at the bottom, and once condensate is formed, it will be inside the outer shell 104 to avoid the condensate from coming into contact with the patient. The outer shell 104 is made of transparent material so that medical staff can see the condensate storage situation inside the outer shell 104; the length of the straight section of the first pipe 103 is longer than the length of the straight section of the second pipe 112, so as to ensure that when the gas flows through the first pipe 103, the condensate formed due to the temperature difference will be stored in the outer shell 104 when it flows along the bent section.

[0030] Please see Figure 1 In some embodiments, the other end of tube 103 and the ventilator interface are detachably connected by threads or rubber gaskets, and one end of the three-way tube 109 is detachably connected by threads or rubber gaskets.

[0031] In this embodiment, the connection between tube 103 and the ventilator interface includes, but is not limited to, the above-described structure; at the same time, the connection between the three-way tube 109 and the endotracheal tube includes, but is not limited to, the above-described structure.

[0032] Specifically, the working principle of the novel breathing circuit provided in this application is as follows: The outer shell 104 is pre-fitted onto the surface of the connecting tube 100, and the outer shell 104 is fixed by the rebound effect of the compression pad 105. At this time, the surface of the mesh plate 106, the surface of the compression pad 105, and the inner wall of the outer shell 104 are all in contact with the surface of the connecting tube 100. Then, the three-way tube 109 is connected to the second tube 112 and the endotracheal tube respectively, while the other end of the first tube 103 is connected to the ventilator interface. At this time, the gas flows out through the breathing interface and flows sequentially through the first tube 103, the storage chamber, the second tube 112, the three-way tube 109, and the endotracheal tube to supply the patient. The moisture will come into contact with the moisture-absorbing particles 108. With the moisture-absorbing effect of the moisture-absorbing particles 108, the accumulation of condensate is effectively avoided. At the same time, when the moisture exceeds its moisture-absorbing effect, the condensate can be prevented from contacting the patient by the waterproof and breathable membrane 107, while ensuring the gas flow effect.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A novel breathing circuit, characterized in that, The device includes a connecting pipe with a first cavity and a second cavity inside. A first tube and a second tube are mounted on the connecting pipe, with the first tube connected to the first cavity and the second tube connected to the second cavity. It also includes a housing with a compression pad and a mesh plate inside. The surface of the mesh plate, the surface of the compression pad, and the inner wall of the housing all abut against the surface of the connecting pipe. A waterproof and breathable membrane is mounted on the mesh plate, abutting against the surface of the second tube. The housing, the mesh plate, and the waterproof and breathable membrane define a storage cavity filled with moisture-absorbing particles.

2. The novel breathing circuit according to claim 1, characterized in that, One end of the second pipe is connected to a tee pipe.

3. The novel breathing circuit according to claim 2, characterized in that, One end of the three-way tube is detachably connected to an endotracheal tube.

4. A novel breathing circuit according to claim 2, characterized in that, It also includes a sealing cap, which is detachably connected to one end of the tee.

5. A novel breathing circuit according to claim 1, characterized in that, Both the No. 1 pipe and the No. 2 pipe have a bent section and a straight section, and the straight section adopts a corrugated pipe structure.

6. A novel breathing circuit according to claim 4, characterized in that, The surface of the sealing cap is provided with a connecting strip, and the other end of the connecting strip is connected to the surface of the tee pipe.

7. A novel breathing circuit according to claim 1, characterized in that, The other end of the first tube is detachably connected to a ventilator interface.

8. A novel breathing circuit according to claim 7, characterized in that, The other end of the first tube and the ventilator interface are detachably connected via threads or rubber gaskets.

9. A novel breathing circuit according to claim 3, characterized in that, One end of the tee tube is detachably connected to the endotracheal tube via threads or a rubber gasket.

10. A novel breathing circuit according to claim 1, characterized in that, The outer shell is made of transparent material.

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