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Nasogastric tube

A technology of gastrointestinal tube and catheter, which is applied in the field of nasogastric tube, can solve the problem of easy blockage of the suction groove, and achieve the effect of not being easy to block

Pending Publication Date: 2019-12-13
陈一奇 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention aims at the problem that the suction groove of the existing nasogastric tube is easily blocked, and provides a nasogastric tube to ensure the smooth flow of the suction channel

Method used

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  • Nasogastric tube
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] see Figure 1 to Figure 8 , the nasogastric tube according to Embodiment 1 of the present invention, said nasogastric tube comprising:

[0041] A catheter 1, the catheter 1 is flexible, and a suction channel 11 and a pressure channel 12 for sucking liquid from the stomach and intestines are formed in the catheter 1, and the liquid suction channel 11 and the pressure channel 12 are isolated from each other;

[0042] An opening and closing piece 2, the opening and closing piece 2 is arranged at the inner end of the conduit 1, the opening and closing piece 2 has a streamlined front end 21, and the front end 21 has an openable and closable end liquid suction port 211, The end liquid suction port 211 communicates with the liquid suction channel 11;

[0043] An elastic body 3, the elastic body 3 is respectively fixed to the conduit 1 and the opening and closing member 2, the elastic body 3 forms a pressure chamber with the conduit 1 and the opening and closing member 2, and ...

Embodiment 2

[0057] The difference between the second embodiment and the first embodiment lies in the number of pressure channels.

[0058] see Figure 9 , In the second embodiment, there are two pressure channels 12 in the catheter 1, the suction channel 11 of the catheter 1 is located in the center of the catheter 1, and the two pressure channels 12 are symmetrical to the suction channel 11. The outlet of the pressure channel 12 is perpendicular to the notch 31 of the opening and closing member 2, and the gas or liquid flowing out of the pressure channel 12 is perpendicular to the notch 31 of the opening and closing member 2, so that the end liquid suction port 211 of the opening and closing member 2 can be opened more quickly.

[0059] Other structures and effects of the second embodiment are the same as those of the first embodiment, and will not be repeated here.

Embodiment 3

[0061] The difference between the third embodiment and the first embodiment lies in the elastic body.

[0062] In the third embodiment, the upper end of the elastic body is bent, the outer surface of the elastic body is bonded to the opening and closing member, and the inner surface of the elastic body is bonded to the opening and closing member, so as to facilitate assembly.

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Abstract

The invention belongs to the technical field of medical instruments and particularly relates to a nasogastric tube. The invention provides the nasogastric tube to overcome the defect that a suction groove of an existing nasogastric tube is easy to block to guarantee smoothness of a suction channel. The technical scheme is as follows: the nasogastric tube comprises a catheter, an opening and closing part and an elastomer, wherein the opening and closing part is arranged at the inner end of the catheter and comprises a streamlined front end, and the front end comprises an openable end liquid suction port communicating with a liquid suction channel; the elastomer is fixedly connected with the catheter and the opening and closing part separately, the elastomer forms a pressure chamber with thecatheter and the opening and closing part, and the pressure chamber communicates with the pressure channel; and when pressure is applied to the pressure channel, the elastomer expands and opens the end liquid suction port of the opening and closing part. The nasogastric tube has beneficial effects as follows: the opening and closing part cannot adsorb the inner wall of intestines, and the end liquid suction port of the opening and closing part cannot be blocked easily.

Description

technical field [0001] The invention belongs to the technical field of medical devices, in particular to a nasogastric tube. Background technique [0002] Gastric tube, that is, nasogastric tube, is mainly used to extract gastric juice, and can also inject liquid into the stomach to provide patients with necessary food and nutrition. Existing gastric tube generally only has a main pipe, and a suction groove is set on the side near the inner end of the main pipe. In actual use, the gastric tube is often adsorbed to the inner wall of the stomach, causing the suction groove to shrink or even block, affecting suction or the supply of nutrient solution. Similar problems also exist in existing nasogastric tubes. Contents of the invention [0003] The invention aims at the problem that the suction groove of the existing nasogastric tube is easily blocked, and provides a nasogastric tube to ensure the smooth flow of the suction channel. [0004] In order to achieve the above ob...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61J15/00
CPCA61J15/0007A61J15/0015A61J15/0026
Inventor 陈一奇陈聪智张仁平
Owner 陈一奇