TWI796751B - N.g. tube with ph sensor - Google Patents

Abstract

The present invention is a nasogastric tube with gastric acid induction, comprising: a nasogastric tube body, a plug at one end and a pH sensor, one end of the nasogastric tube body is provided with an infusion part, and the other end is provided with an outflow part, the nasogastric tube itself There is a flow channel connecting the infusion part and the outflow part inside the body, the end plug is fixed at the end of the outflow part, the pH sensor is arranged in the end plug, and the pH sensor part is exposed in the flow channel , so that under the condition of ensuring safety, the perforation and flow channel of the nasogastric tube body can be in contact with the patient's gastric juice; thereby, Bida can use the pH sensor to transmit and display the patient's gastric juice pH value data on the A reader, so as to accurately judge the patient's physical condition at any time, and reduce the pain of the patient's gastric acid detection and the workload of the medical staff.

Description

Nasogastric tube with gastric acid sensing

The invention relates to a nasogastric tube, especially a nasogastric tube with gastric acid induction.

By the way, with the development of science and technology and the advancement of medical technology, the survival rate of patients has been relatively improved. However, when patients are unable to eat on their own due to injury or aging, they need medical staff to force-feed them through a nasogastric tube feeder, that is, insert Nutrients are processed into a liquid state by means of a nasogastric tube, which is guided into the stomach through the nasal cavity to supply patients with normal calories and nutrition. Gastric acid value is used to judge the physical condition of the patient so that force-feeding or drug-feeding can be performed in due course.

It is known to use a nasogastric tube to test the gastric acid value of a patient. The gastric juice of the patient needs to be extracted through the nasogastric tube, and then tested with a test paper. Moreover, the intensity is difficult to control, and excessive extraction often occurs, causing gastric juice to be wasted or not extracted. In addition, the gastric juice in the tube will reflux after extraction, which increases the pain of the patient.

Furthermore, in the course of medical treatment, it is very necessary to continuously and accurately measure the change of pH value of gastric juice. However, traditional pH measuring devices require a reference electrode, which may cause electrolyte leakage and potential contamination, and are bulky and cannot be integrated with a nasogastric tube to be inserted into the stomach. Therefore, there is a need for improvement.

In view of the above-mentioned shortcomings of using a nasogastric tube to detect the gastric acid value of patients, the inventor of the present invention conceived and created the idea, after many discussions and sample tests, and after many revisions and improvements, finally came up with the present invention.

The invention provides a nasogastric tube with gastric acid induction, comprising: a nasogastric tube body, one end is provided with an infusion part, and the other end is provided with an outflow part; The flow channel of the outflow part is provided with a plurality of perforations communicating with the flow channel; one end plug is provided with a joint part and a protruding part, the joint part plug is fixed at the end of the outflow part, and the protruding part is exposed At the end of the outflow part, the protruding part has a smooth surface; a pH sensor is arranged in the end plug, and the pH sensor is partially exposed in the flow channel. The pH sensor is used to measure the pH value of gastric juice , and wirelessly transmit and display the measured gastric juice pH value data on a reader.

The main purpose of the nasogastric tube with gastric acid sensor of the present invention is to set a pH sensor in the end plug, and use the pH sensor to transmit the pH value data of the patient's gastric juice to a reader outside the body for display through wireless transmission. , so as to continuously and accurately measure the pH value of the patient's gastric juice, so as to accurately judge the patient's physical condition, and improve the practicability and convenience of use.

The second purpose of the gastric acid sensing nasogastric tube of the present invention is that when measuring the pH value of the gastric juice of a patient, the reader outside the body can directly receive the pH value data of the gastric juice wirelessly transmitted by the pH sensor, so as to relieve the patient from measuring gastric acid. pain and the workload of medical staff.

The drawings of the preferred embodiments of the present invention are further described below in order to enable those who are familiar with the relevant technologies of the present invention to implement according to the statements in this specification.

First of all, please refer to the first to fifth figures, the nasogastric tube with gastric acid sensor of the present invention includes: a nasogastric tube body 10 , an end plug 20 , and a pH sensor 30 .

The nasogastric tube body 10 is a tube made of elastic material, one end is provided with an infusion part 11, and the other end is provided with an outflow part 12, and the nasogastric tube body 10 is provided with a connection between the infusion part 11 and the outflow part 12. The flow channel 13, the filling part 11 is provided with a plug 111 that can be opened to cover the filling part 11 to close the flow channel 13, and the outflow part 12 is provided with a plurality of perforations 121 communicating with the flow channel 13.

The end plug 20 is provided with a joint part 21 and a protruding part 22, the joint part 21 is cylindrical, the plug sleeve is fixed at the end of the outflow part 12, the protruding part 22 is exposed at the end of the outflow part 12, the protruding part The outlet portion 22 has a smooth surface, so as to prevent the nasogastric tube body 10 from causing damage to the surface tissues of the nasal cavity and esophagus during the process of extending into the stomach through the nasal cavity and esophagus.

The pH sensor 30 adopts a passive power supply mode and is installed in the end plug 20. In this embodiment, the pH sensor 30 is a miniature pH sensor, which is a conductive electrode that generates different voltage responses depending on the concentration of pH ions in the gastric juice. The pH sensor 30 is provided with a pH sensing element 31 and two antennas 32, and the pH sensing element 31 and the two antennas 32 are partially exposed on the In the flow channel 13, the pH sensing element 31 is used to measure the pH value of the gastric juice. One of the two antennas 32 is for receiving and the other is for transmitting. The two antennas 32 are used for wireless transmission of the pH value measured by the pH sensing element 31. gastric juice pH data.

When in use, please refer to the sixth and seventh figures, the outflow part 12 of the nasogastric tube body 10 extends into the stomach through the patient's nasal cavity and esophagus, and the plug cover 111 that covers the infusion part 11 can be opened to discharge the fluid The food is poured in from the infusion part 11, flows through the flow channel 13 to the outflow part 12, and flows into the patient's stomach through the perforation 121 of the outflow part 12, and completes the force-feeding action to supplement the required nutrition for the patient. During force-feeding, the patient's gastric juice can enter the flow channel 13 through the perforation 121 of the outflow part 12, so that the patient's gastric juice is in contact with the pH sensing element 31 of the pH sensor 30, and the gastric juice is followed by the pH sensing element 31. Different voltages are generated by the concentration of pH ions in the gastric juice, and the pH value in the gastric juice is measured. The pH value data is transmitted and displayed on a reader 40 outside the body through two antennas 32. The pH sensor does not need batteries and reference electrodes, and enables continuous measurement of gastric juice pH value for medical staff to accurately control the patient's physical condition at any time.

By the structure of above-mentioned specific embodiment, can obtain following benefit:

1. The nasogastric tube with gastric acid sensing of the present invention has a pH sensor 30 installed in the end plug 20, and the pH sensor 30 can be used to transmit the pH value data of the patient's gastric juice to an external reader through the wireless transmission 40 shows that it is used to continuously and accurately measure the pH value of the patient's gastric juice, so that the medical staff can accurately judge the patient's physical condition, and perform force-feeding or drug-feeding actions in a timely manner. The practicability and convenience of use are improved.

2. The nasogastric tube with gastric acid sensor of the present invention can directly receive the pH value data of the gastric juice transmitted wirelessly by the pH sensor 30 through the reader 40 outside the body when detecting the pH value of the patient's gastric juice, without the need to extract the patient's gastric juice pH value. The action of gastric juice, so as to reduce the pain of patients and the workload of medical staff in testing gastric acid.

10 Nasogastric tube body 11 Filling part 111 plug cover 12 outflow part 121 piercing 13 Runner 20 end plug 21 joint 22 Protruding part 30 pH sensor 31 pH sensing element 32 Antenna 40 reader

The first figure is a perspective view of the present invention.

The second figure is a three-dimensional exploded view of the present invention.

The third figure is a partial perspective view of the present invention.

The fourth figure is a sectional view of the present invention.

The fifth figure is a partial sectional view of the present invention

The sixth figure is a schematic diagram of the use state of the present invention.

The seventh picture is an enlarged view of the A1 part of the sixth picture.

10 Nasogastric tube body 12 outflow part 121 piercing 13 Runner 20 end plug 21 joint 22 Protruding part 30 pH sensor 31 pH sensing element 32 Antenna

Claims (6)

A nasogastric tube with gastric acid induction, comprising: a nasogastric tube body, one end is provided with an infusion part, and the other end is provided with an outflow part; channel, the outflow part is provided with a plurality of perforations communicating with the flow channel; an end plug is provided with a joint part and a protruding part, the joint part plug is fixed at the end of the outflow part, and the protruding part is exposed to the outflow part the end of the part, the protruding part has a smooth surface; and a pH sensor is arranged in the end plug, the pH sensor is partially exposed in the flow channel, and the pH sensor is used to detect the pH value of gastric juice, and The measured gastric juice pH value data is wirelessly transmitted and displayed on a reader. Nasogastric tube with gastric acid sensing as described in Claim 1, wherein the pH sensor is provided with a pH sensing element and two antennas, the pH sensing element and the two antennas are partially exposed in the flow channel, and the pH sensor The sensing element is used to measure the pH value of gastric juice. One of the two antennas is used for receiving and the other is used for transmitting. The two antennas are used for wirelessly transmitting and displaying the pH value data of gastric juice measured by the pH sensing element on a reader. The nasogastric tube with gastric acid induction as described in Claim 1, wherein the filling part of the nasogastric tube body is provided with a plug cover which can be opened to cover the filling part to close the flow channel. The nasogastric tube with gastric acid induction as described in Claim 1, wherein the joint part of the end plug is cylindrical, and the protruding part of the end plug has a smooth surface. The nasogastric tube with gastric acid sensing as described in Claim 2, wherein the pH sensing element is made of conductive material that produces different voltage responses depending on the concentration of pH ions in the gastric juice. The nasogastric tube with gastric acid sensing as claimed in claim 1, wherein the pH sensor is integrated into the end plug by over-injection molding.

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