A sampling tube for end-tidal carbon dioxide monitoring in non-intubated patients

Abstract

The utility model relates to a kind of for the sampling tube of non-tracheal intubation patient end tidal carbon dioxide monitoring, including pipe body, filter and tee;One end of pipe body is set to be nasal cavity end for inserting into the inside of patient's nasal cavity, the other end is set to be the interface end connected with the breathing module of monitor;Filter is set on pipe body;Tee is set on the pipe body between filter and nasal cavity end, one interface of tee can be connected with syringe;Sampling tube is inserted into nasal cavity when using one end, the other end is connected with the breathing module of monitor, and the end tidal carbon dioxide level of non-intubation state of patient can be quickly, continuously, accurately monitored.

Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, specifically relating to a sampling tube for end-tidal carbon dioxide monitoring in non-endotracheal intubated patients. Background Technology

[0002] End-tidal carbon dioxide (ETC) is an important parameter for understanding the respiratory physiology of the human body. However, currently, clinical monitoring of ETC is mostly limited to patients who have undergone endotracheal intubation (or laryngeal mask airway) under general anesthesia. For non-endotracheal intubated patients, how to rapidly, continuously, and accurately monitor their ETC levels has always been an important clinical concern.

[0003] Therefore, there is an urgent need to develop a sampling tube that can be used for end-tidal carbon dioxide monitoring in non-endotracheal intubated patients to achieve rapid, continuous, and accurate monitoring of their end-tidal carbon dioxide levels. Utility Model Content

[0004] To address at least one of the problems in the prior art, the purpose of this invention is to provide a sampling tube for monitoring end-tidal carbon dioxide levels in non-intubated patients. One end of the sampling tube is inserted into the nasal cavity, and the other end is connected to the respiratory module of a monitor, enabling rapid, continuous, and accurate monitoring of end-tidal carbon dioxide levels in non-intubated patients.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A sampling tube for end-tidal carbon dioxide monitoring in non-endotracheal intubated patients, comprising: The tube has one end designed for insertion into the patient's nasal cavity, and the other end designed for connection to the respiratory module of the monitor. A filter is installed on the tube body; A T-shaped three-way valve is disposed on the tube between the filter and the nasal cavity end, and one port of the three-way valve can be connected to a syringe.

[0006] Preferably, the nasal cavity has a circular opening at its front end, and two elliptical secondary holes are formed on its side wall.

[0007] Preferably, distance scale lines are provided on the tube at the nasal cavity end.

[0008] Preferably, the interface end is provided with a thread for connection to the respiratory module of the monitor.

[0009] Preferably, the tube body is a hollow transparent tube.

[0010] Preferably, the tee is equipped with a rotary adjustment switch.

[0011] This utility model has the following advantages due to the adoption of the above technical solution: The present invention provides a sampling tube for end-tidal carbon dioxide monitoring in non-intubated patients. The sampling tube is a transparent hollow tube, with one end inserted into the nasal cavity and the other end connected to the respiratory module of the monitor. It can quickly, continuously, and accurately monitor the end-tidal carbon dioxide level of patients in non-intubated states. The sampling tube can be connected to a syringe. When the nasal end of the tube is blocked by the patient's secretions, the end of the tube can be cleared by connecting an empty syringe to ensure the tube is unobstructed. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of a sampling tube for end-tidal carbon dioxide monitoring in non-endotracheal intubated patients, provided in one embodiment of the present invention.

[0013] Figure 2 This is a schematic diagram illustrating the connection and application of a sampling tube and a syringe according to an embodiment of this utility model.

[0014] Marked in the attached diagram: 1 is the tube body, 101 is the nasal cavity end, 102 is the interface end, 2 is the filter, 3 is the T-shaped tee, 4 is the distance scale line, and 5 is the secondary hole. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0016] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", etc., 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 this utility model and simplifying the description, and do not indicate or imply that the system or component 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 utility model.

[0017] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "assembly," "setup," and "connection" 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 of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0018] This invention provides a sampling tube for monitoring end-tidal carbon dioxide levels in non-intubated patients. One end of the sampling tube is inserted into the patient's nasal cavity, and the other end is connected to the respiratory module of a monitor. It can quickly, accurately, and continuously monitor the end-tidal carbon dioxide level of patients in non-intubated states.

[0019] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0020] Example Please refer to the reference. Figure 1 and Figure 2 This embodiment provides a sampling tube for end-tidal carbon dioxide monitoring in non-endotracheal intubated patients, comprising a tube body 1, a filter 2, and a T-type three-way valve 3; One end of the tube 1 is configured as a nasal end 101 for insertion into the patient's nasal cavity, and the other end is configured as an interface end 102 that can be connected to the respiratory module of the monitor. Filter 2 is installed on pipe body 1; The T-shaped tee 3 is located on the tube 1 between the filter 2 and the nasal cavity end 101, and one of the ports of the tee 3 can be connected to a syringe.

[0021] Specifically, the tube body 1 can be made of transparent material to form a colorless and transparent hollow tube with an opening at the front end of the nasal cavity end 101 and two oval secondary holes 5 on its side wall to facilitate the entry of nasal airflow into the sampling tube; the material can be medical plastic or PVC. The colorless and transparent tube allows for direct observation of the internal condition of the tube body 1, such as whether there is nasal secretion or moisture.

[0022] The sampling tube interface of the respiratory module of the monitor is usually provided with internal thread, and the interface end 102 connecting the tube body 1 and the respiratory module of the monitor is provided with external thread. The sampling tube is connected to the respiratory module of the monitor by screwing the external thread and the internal thread together.

[0023] The nasal end 101 of the tube body 1, which is inserted into the patient's nasal cavity, is a transparent soft tube with a diameter of 4 mm; the tube behind the filter has a diameter of 3 mm.

[0024] In this embodiment, a distance scale line 4 is provided on the tube body of the nasal cavity end 101.

[0025] Specifically, when the nasal end 101 is inserted into the nasal cavity, medical staff can determine the depth of insertion of the nasal end 101 into the nasal cavity by observing the distance scale line 4.

[0026] In this embodiment, the filter 2 can be a disposable medical filter from the prior art. The filter 2 can filter water, water vapor or nasal secretions in the pipeline 1, ensuring the normal operation of the respiratory module of the monitor.

[0027] In this embodiment, the three-way valve 3 can be a medical three-way valve from the prior art. The three-way valve 3 has three interfaces, two of which are connected to the tube body 1, and the other interface can be connected to the syringe. The three-way valve 3 is equipped with a rotary adjustment switch, which can be adjusted to connect any two interfaces of the three-way valve 3. When the nasal end of the tube 1 is blocked by the patient's secretions, the nasal end 101 is pulled out, and the rotary adjustment switch is turned to connect the nasal end 101 of the three-way valve 3 to the syringe. The nasal end 101 of the tube is then emptied by blowing through the empty syringe to ensure that the tube 1 is unobstructed. When it is necessary to detect end-tidal carbon dioxide, the rotary adjustment switch is turned to connect the nasal end 101 of the three-way valve 3 to the interface end 102.

[0028] In this embodiment, the sampling tube for end-tidal carbon dioxide monitoring in non-endotracheal intubated patients is connected to the respiratory module of the monitor. When the patient breathes spontaneously, airflow passes through the sampling tube into the gas module of the monitor, and the monitor displays the waveform of end-tidal carbon dioxide. Medical staff can use this to understand the patient's respiratory status (end-tidal carbon dioxide partial pressure, respiratory rate, etc.) and infer the level of carbon dioxide in the blood through the intermittent end-tidal carbon dioxide (which can be calibrated by the partial pressure of carbon dioxide in arterial blood gas). This allows for timely determination of whether the patient has carbon dioxide accumulation and timely adjustment of the patient's respiratory support strategy.

[0029] The sampling tube for end-tidal carbon dioxide monitoring in non-intubated patients in this embodiment can be widely used in various non-intubated surgical procedures and examinations under general anesthesia, both inside and outside the operating room. These include painless cystoscopy, painless ureteroscopy, prostate biopsy, hysteroscopy, painless abortion, as well as painless gastroscopy, colonoscopy, bronchoscopy, and thoracoscopy. It is also suitable for non-intubated respiratory failure patients requiring respiratory support in intensive care, respiratory, and emergency departments to determine the presence and severity of carbon dioxide accumulation. It can quickly, accurately, and continuously monitor the end-tidal carbon dioxide level of patients in non-intubated states.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model 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 of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A sampling tube for end-tidal carbon dioxide monitoring in non-endotracheal intubated patients, characterized in that, include: The tube has one end designed for insertion into the patient's nasal cavity, and the other end designed for connection to the respiratory module of the monitor. A filter is installed on the tube body; A T-shaped three-way valve is disposed on the tube between the filter and the nasal cavity end, and one port of the three-way valve can be connected to a syringe.

2. The sampling tube for end-tidal carbon dioxide monitoring in non-endotracheal intubated patients according to claim 1, characterized in that, The nasal cavity has a circular opening at its front end, and two elliptical secondary holes are formed on its side wall.

3. The sampling tube for end-tidal carbon dioxide monitoring in non-endotracheal intubated patients according to claim 1, characterized in that, Distance scale lines are provided on the tube at the nasal cavity end.

4. The sampling tube for end-tidal carbon dioxide monitoring in non-endotracheal intubated patients according to claim 1, characterized in that, The interface end is provided with a thread for connection to the respiratory module of the monitor.

5. The sampling tube for end-tidal carbon dioxide monitoring in non-endotracheal intubated patients according to claim 1, characterized in that, The tube body is a hollow transparent tube.

6. The sampling tube for end-tidal carbon dioxide monitoring in non-endotracheal intubated patients according to claim 1, characterized in that, A rotary adjustment switch is provided on the tee.

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