CN201070351Y - Carbonic anhydride concentration detecting pipe for patient monitoring - Google Patents

Abstract

The utility model discloses a carbon dioxide concentration detection catheter for monitoring patients. It includes an oxygen catheter, which is connected to a nasal cannula that can be inserted into two nasal cavities of the patient at the same time, and a barrier is provided in the nasal cannula channel to separate the nasal cannula channel into an oxygen delivery channel and an air delivery channel. board, the oxygen delivery catheter communicates with the oxygen delivery channel of the nasal cannula, and an air delivery catheter for transporting the patient's nasal cavity exhaled gas to the carbon dioxide concentration detector is connected to the air delivery channel of the nasal cavity cannula. The utility model avoids the error caused by some gas remaining in the oral cavity and nasal cavity when detection is performed by wearing a mask in the past, and has high reliability; in addition, the detection method of the utility model is non-invasive inspection, The invention avoids the mucous membrane injury of the nasal cavity, oral cavity and throat during intubation, relieves the pain of the patient, and is simple in structure, economical and practical, and can be implemented by ordinary personnel.

Description

A carbon dioxide concentration detection catheter for monitoring patients

technical field

The utility model relates to a catheter, in particular to a carbon dioxide concentration detection catheter for monitoring patients.

Background technique

In the process of clinical treatment, it is often necessary to detect the carbon dioxide concentration of the patient's exhaled gas to understand the changes in the patient's respiratory function. There are two existing detection methods. The first method is to put a mask on the patient. Two conduits are connected to the mask. One of the conduits transmits oxygen to the patient, and the other conduit passes the gas exhaled by the patient. The second method is to directly insert the catheter into the patient's respiratory tract, so that the gas exhaled by the patient directly enters the detector for detection. When the first method of wearing a mask is used for detection, some gases (such as oxygen, carbon dioxide, etc.) will remain in the mask, oral cavity, and nasal cavity, which will easily cause detection errors, affect the treatment process, and have low reliability; Although the second intubation method avoids the error caused by wearing a mask, it will cause the tube to damage the mucous membranes of the nasal cavity, oral cavity and throat, which will increase the pain of the patient, and only high-level medical staff can implement this method. way.

Contents of the invention

The purpose of this utility model is to provide a simple structure, economical and practical carbon dioxide concentration detection catheter for monitoring patients. The use of this catheter can not only reduce the error of carbon dioxide concentration detection, but also has high reliability, and will not affect the carbon dioxide concentration during detection. The patient causes harm, can alleviate the pain of the patient, and ordinary personnel can carry out, thereby overcome the deficiency of existing technology

The utility model is constituted as follows: it includes an oxygen delivery catheter 1, and the oxygen delivery catheter 1 is connected to a nasal cannula 2 that can be put into two nasal cavities of a patient at the same time, and a nasal cannula is provided in the passage of the nasal cannula 2 The intubation channel is divided into the oxygen delivery channel and the isolation plate 3 of the gas delivery channel. The oxygen delivery catheter 1 communicates with the oxygen delivery channel of the nasal cannula 2, and a tube is connected to the gas delivery channel of the nasal cannula 2 to transport the exhaled gas from the patient's nasal cavity to the concentration of carbon dioxide. Gas conduit 4 of the detector.

In the above-mentioned carbon dioxide concentration detection catheter for patient monitoring, an air delivery mouth tube 5 for delivering gas exhaled by the patient's mouth is also connected to the air delivery channel of the nasal cannula 2 .

In the aforementioned carbon dioxide concentration detection catheter used for patient monitoring, an air collecting hood 7 is connected to the end of the air delivery nozzle tube 5 .

The utility model can be used for detecting the carbon dioxide concentration of the patient's exhaled gas, so as to understand the change of the patient's respiratory function. Compared with the prior art, the utility model enables the patient to inhale oxygen directly through the oxygen delivery catheter and then through the oxygen delivery channel of the nasal cannula, and the exhaled gas can be directly passed through the air delivery duct through the air delivery channel of the nasal cannula and the gas delivery mouthpiece. It is sent to the carbon dioxide concentration detector to measure the concentration of carbon dioxide in all the gas exhaled by the patient, avoiding the error caused by some gas remaining in the oral cavity and nasal cavity that cannot be detected, and the reliability is high; in addition, the utility model adopts the The detection method is a non-invasive inspection, which avoids the mucosal damage of the nasal cavity, oral cavity and throat during intubation, and reduces the pain of the patient. Moreover, the structure is simple, economical and practical, and ordinary personnel can implement it.

Description of drawings

Fig. 1 is a structural representation of the utility model;

Fig. 2 is the structural representation when the utility model uses;

The accompanying drawings are marked as: 1-oxygen catheter, 2-nasal cannula, 3-isolation board, 4-gas delivery catheter, 5-gas delivery nozzle tube, 6-output end of gas delivery catheter, 7-gas collection hood, 8-input end of oxygen catheter, 9-oxygen supply device, 10-carbon dioxide concentration detector.

Detailed ways

Embodiments of the present utility model are: the structure of the present utility model is shown in Figure 1, and it comprises existing oxygen delivery catheter 1, in order to support and fix the various catheters that are put into the nasal cavity, oxygen delivery catheter 1 is connected in a can simultaneously Put the nasal cannula 2 in the two nasal cavities of the patient, and install a separation plate 3 that divides the nasal cannula passage into an oxygen delivery channel and an air delivery passage in the passage of the nasal cannula 2. The oxygen delivery channel and the gas delivery channel are not ventilated to each other, the oxygen delivery catheter 1 communicates with the oxygen delivery channel of the nasal cannula 2, and a tube is connected to the air delivery channel of the nasal cannula 2 to transport the exhaled gas from the patient's nasal cavity to the carbon dioxide concentration detector. Air duct 4. Considering that some patients may have a blocked nasal cavity, it is necessary to collect gas samples from the mouth of the patient when breathing, so an input channel for transporting the gas exhaled by the patient's mouth can be connected to the air delivery channel of the nasal cannula 2 . Gas nozzle pipe 5; In order to improve the efficiency of collecting the patient's exhaled gas, a gas collection hood 7 can be connected at the end of the gas delivery nozzle pipe 5, and the gas collection hood 7 can be a larger pipe at the entrance of a gas.

When the utility model is in use, the structure is as shown in Figure 2. The output end 6 of the gas delivery conduit 4 is connected to the detection port of the existing commercially available carbon dioxide concentration detector 10, and the input end 8 of the oxygen delivery conduit 1 is connected to the existing commercially available carbon dioxide concentration detector 10. The output port of the oxygen supply device 9 is connected, the air collecting mask 7 is placed in the patient's oral cavity, and the nasal cannula 2 is placed in the patient's nasal cavity. The patient inhales oxygen through the oxygen delivery channel connected to the nasal cannula 2, and exhales gas through the air delivery channel of the nasal cannula 2 and the gas collection mask 7, and the exhaled gas is transported to the carbon dioxide concentration detector 10 through the air delivery catheter 4 for detection.

Claims (3)

1. A carbon dioxide concentration detection catheter for monitoring patients, which includes an oxygen delivery catheter (1), is characterized in that the oxygen delivery catheter (1) is connected to a nasal cannula (2) that can be put into two nasal cavities of a patient simultaneously In the passage of the nasal cannula (2), there is a partition plate (3) that separates the nasal cannula passage into an oxygen delivery channel and an air delivery passage, and the oxygen delivery conduit (1) and the nasal cannula (2) The passages are connected, and the air passage of the nasal cannula (2) is connected with an air conduit (4) for conveying the patient's nasal exhaled gas to the carbon dioxide concentration detector. 2. The carbon dioxide concentration detection catheter for monitoring patients according to claim 1, characterized in that, on the gas delivery channel of the nasal cannula (2), a gas delivery nozzle pipe ( 5). 3. The carbon dioxide concentration detection catheter for monitoring patients according to claim 2, characterized in that, an air collecting hood (7) is connected to the end of the air delivery nozzle pipe (5).

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