Tracheal catheter capable of directly monitoring end-tidal carbon dioxide partial pressure of infant

A technology of carbon dioxide and endotracheal tubes, which is applied in the direction of tracheal intubation, respirators, and evaluation of respiratory organs, etc., can solve problems such as inaccurate monitoring, hidden dangers of respiratory management in children, and obvious carbon dioxide dilution, and achieve simple structure and improved monitoring Accuracy, use effect is remarkable

Pending Publication Date: 2017-11-07
JIANGSU PROVINCE HOSPITAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because the endotracheal tube is relatively thick, there is inevitably a section of fresh air flow in the tube, which has little influence on the results of end-tidal carbon dioxide monitoring for adults, but for infants and young children, due to their small tidal volume, Significant CO2 dilution from the fresh air stream would result in inaccurate monitoring using existing sampling d...

Method used

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  • Tracheal catheter capable of directly monitoring end-tidal carbon dioxide partial pressure of infant

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] An opening 1 is set at a distance of 1 cm from the cuff 6 on the catheter 5 , that is, a sampling point, and the breathing gas entering the beginning of the catheter 5 is collected. The opening 1 is connected to the thin tube 2, which is a thin tube 2 with an inner diameter of 0.5 mm. The thin tube 2 is connected to the wall of the endotracheal catheter. The catheter is outside the patient's body and is separated from the catheter 5. The end of the thin tube 2 is a threaded port 4, and the threaded port 4 is connected to an end-tidal carbon dioxide monitor. The gas breathed by infants and young children is collected at the opening 1 of the catheter 5 and passed through the thin tube 2. Because the sampling site is close to the top of the trachea, it is less affected by the fresh air flow, and can accurately reflect the end-tidal carbon dioxide level, and the use effect is remarkable. Connector 7 is connected to the ventilator.

Embodiment 2

[0025] An opening 1 is set at a distance of 1.5 cm from the cuff 6 on the catheter 5 , that is, a sampling point, and the breathing gas entering the beginning of the catheter 5 is collected. The opening 1 is connected to the thin tube 2, which is a thin tube 2 with an inner diameter of 1 mm, and the thin tube 2 is connected to the wall of the endotracheal tube. The catheter is outside the patient's body and is separated from the catheter 5. The end of the thin tube 2 is a threaded port 4, and the threaded port 4 is connected to an end-tidal carbon dioxide monitor. The gas breathed by infants and young children is collected at the opening 1 of the catheter 5 and passed through the thin tube 2. Because the sampling site is close to the top of the trachea, it is less affected by the fresh air flow, and can accurately reflect the end-tidal carbon dioxide level, and the use effect is remarkable. Connector 7 is connected to the ventilator.

Embodiment 3

[0027] An opening 1, ie a sampling point, is set at 2 cm away from the cuff 6 on the catheter 5 to collect the breathing gas entering the beginning of the catheter 5 . The opening 1 is connected to the thin tube 2, which is a thin tube 2 with an inner diameter of 1.2mm. The thin tube 2 is connected to the wall of the endotracheal catheter. The catheter is outside the patient's body and is separated from the catheter 5. The end of the thin tube 2 is a threaded port 4, and the threaded port 4 is connected to an end-tidal carbon dioxide monitor. The gas breathed by infants and young children is collected at the opening 1 of the catheter 5 and passed through the thin tube 2. Because the sampling site is close to the top of the trachea, it is less affected by the fresh air flow, and can accurately reflect the end-tidal carbon dioxide level, and the use effect is remarkable. Connector 7 is connected to the ventilator.

[0028] The tracheal tube provided by the present invention is ...

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Abstract

The invention relates to medical instruments, in particular to a tracheal catheter capable of directly monitoring the end-tidal carbon dioxide partial pressure of an infant. The tracheal catheter comprises a catheter body, a cuff, a connector, an opening and a thin tube, wherein the cuff is connected to one end of the catheter body, the connector is arranged at the other end of the catheter body, the opening is arranged in a position, between the cuff and the connector and close to the cuff, of the catheter body and connected with the thin tube, and the tail end of the thin tube is connected with an end-tidal carbon dioxide monitor. The tracheal catheter has the advantages that the tracheal catheter is improved to solve the technical problem that due to the fact that the infant is low in body weight, if an existing tail-end sampling device is used, the dilution effect of fresh air flow in the tracheal catheter on carbon dioxide is evident, and the measured end-tidal carbon dioxide is evidently lower than an actual value, the sampling part opening 1 is close to the top end of the tracheal catheter, the inner diameter of the thin tube 2 is small, the fresh air quantity in the thin tube 2 is low, influence of the fresh air flow on the collected breathing gas at the top end of the tracheal catheter is small, the end-tidal carbon dioxide level can be reflected accurately, and the tracheal catheter is evident in use effect.

Description

technical field [0001] The invention relates to a medical device, in particular to a tracheal tube for directly monitoring the end-tidal carbon dioxide partial pressure of an infant. Background technique [0002] end-tidal carbon dioxide (PETCO 2 ) as a monitoring index has been considered as the sixth basic vital sign besides body temperature, respiration, pulse, blood pressure, arterial oxygen saturation, PETCO 2 It is one of the basic monitoring indicators during anesthesia. The application of end-tidal carbon dioxide partial pressure monitoring technology enables clinicians to continuously and non-invasively monitor the patient's ventilation function and carbon dioxide exchange, so that intraoperative acid-base balance, soda lime failure, excessive ventilation volume, ventilator mechanical Faults, patient shock, cardiac arrest, pulmonary embolism, and endotracheal tube strayed into the esophagus can be detected and adjusted in time, which greatly improves the objectivi...

Claims

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Application Information

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IPC IPC(8): A61M16/04A61B5/08
CPCA61M16/0003A61M16/04A61B5/082
Inventor 陈晓东桂波沈健龚婵娟
Owner JIANGSU PROVINCE HOSPITAL
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