Disposable sterile double tube nasopharyngeal ventilation tube

Abstract

The invention discloses a disposable sterile double-tube nasopharyngeal ventilating tube, comprising a silicone hose, wherein a first venting groove is provided inside the silicone hose, a second venting groove is provided inside the silicone hose on the right side of the first venting groove, and a rubber plug is provided inside the silicone hose. The disposable sterile double-tube nasopharyngeal ventilating tube has two venting grooves inside the silicone hose, so that the silicone hose becomes a double-tube structure, ventilation and monitoring are separated, and interference of oxygen flow on the accuracy of end-tidal carbon dioxide monitoring is avoided during high-flow oxygen supply or anesthesia (respiratory) machine ventilation. The exhaled gas contains part of sputum and hydrocondensate, and the blockage of the end-tidal carbon dioxide monitoring sampling tube by sputum and hydrocondensate is avoided or reduced by appropriately expanding the second venting groove. Once the distal end of the second venting groove is blocked, sampling can also be performed through the side hole, and the length of the silicone hose is increased at the same time, so that it can better reach the glottis and facilitate breathing.

Description

Technical Field

[0001] The invention relates to the technical field of nasopharyngeal ventilation tubes, in particular to a disposable sterile double-tube nasopharyngeal ventilation tube. Background Art

[0002] The nasopharyngeal airway is a clinical disposable medical device made of silicone. It is soft, easy to operate, does not require special equipment, can quickly achieve effective ventilation within seconds, has less irritation, and has less formation of mural sputum plugs. It is easy to care for and brings great convenience to clinical work.

[0003] However, the existing nasopharyngeal ventilation tube is a curved tube that is inserted through the nasopharynx into the supraglottis to solve upper respiratory obstruction, but it cannot monitor end-tidal carbon dioxide, and the length cannot be inserted into the supraglottis to solve upper airway obstruction due to individual differences. Summary of the invention

[0004] The purpose of the present invention is to provide a disposable sterile double-tube nasopharyngeal ventilation tube to solve the problem proposed in the above background technology that the existing nasopharyngeal ventilation tube is a curved tube inserted into the glottis through the nasopharynx to solve upper respiratory obstruction, but cannot monitor end-tidal carbon dioxide, and the length cannot be inserted into the glottis to solve upper respiratory tract obstruction due to individual differences.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical scheme: a disposable sterile double-tube nasopharyngeal ventilation tube, comprising a silicone hose, a first ventilation groove is opened inside the silicone hose, a second ventilation groove is opened inside the silicone hose on the right side of the first ventilation groove, a side hole is opened on the outside of the silicone hose near the second ventilation groove, a rubber plug is arranged inside the silicone hose, a first joint is fixedly connected to the upper end of the rubber plug, a third ventilation groove is opened on the right side of the first joint, a sampling tube is arranged inside the third ventilation groove, a second joint is arranged at the end of the sampling tube away from the third ventilation groove, a third joint is fixedly connected to the lower end of the first joint, a slidable positioning ring is slidably installed on the outside of the silicone hose, and a filter is fixedly installed inside the second joint.

[0006] Preferably, four side holes are arranged at equal intervals.

[0007] Preferably, a first empty groove is opened inside the rubber stopper, and the first empty groove is connected to the first ventilation groove.

[0008] Preferably, a third empty slot is provided on the first joint, and the third empty slot is connected to the first empty slot.

[0009] Preferably, one end of the sampling tube close to the first joint is matched with the third ventilation groove, and the second joint is connected with the other end of the sampling tube.

[0010] Preferably, a second empty groove is opened inside the third joint, and the third joint is inserted into the second ventilation groove.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] The disposable sterile double-tube nasopharyngeal ventilation tube, by arranging the first ventilation groove and the second ventilation groove of the silicone hose, makes the silicone hose become a double-tube structure, separates ventilation and monitoring, reduces the interference of oxygen flow on the accuracy of end-tidal carbon dioxide monitoring during high-flow oxygen supply or anesthesia (respiratory) machine ventilation, avoids affecting the sampling progress, and prevents interference with the detection process. The exhaled gas contains some sputum and hydrocondensate, which can be avoided by appropriately thickening and enlarging the second ventilation groove, and the blockage of the end-tidal carbon dioxide monitoring sampling tube by sputum and hydrocondensate is reduced. Once the distal end of the second ventilation groove is blocked, sampling can also be carried out through the side hole, and the length of the silicone hose is increased so that it can better reach the glottis. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0014] Figure 2 It is a schematic diagram of the cross-sectional structure of the present invention;

[0015] Figure 3 This is a schematic diagram of the structure of the first joint and the rubber plug of the present invention;

[0016] Figure 4 Schematic diagram of the internal structure of the second joint of this utility model.

[0017] In the figure: 1, silicone hose; 2, first ventilation groove; 3, second ventilation groove; 4, side hole; 5, rubber plug; 6, first joint; 7, third ventilation groove; 8, sampling tube; 9, second joint; 10, third joint; 11, slidable positioning ring; 12, filter; 51, first empty slot; 61, third empty slot; 1001, second empty slot. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] See also Figure 1-4The present invention provides a technical solution: a disposable sterile double-tube nasopharyngeal ventilation tube, comprising a silicone hose 1, a first ventilation groove 2 is opened inside the silicone hose 1, a second ventilation groove 3 is opened inside the silicone hose 1 on the right side of the first ventilation groove 2, a side hole 4 is opened on the outside of the silicone hose 1 near the second ventilation groove 3, a rubber plug 5 is arranged inside the silicone hose 1, a first joint 6 is fixedly connected to the upper end of the rubber plug 5, a third ventilation groove 7 is opened on the right side of the first joint 6, a sampling tube 8 is arranged inside the third ventilation groove 7, a second joint 9 is arranged at the end of the sampling tube 8 away from the third ventilation groove 7, a third joint 10 is fixedly connected to the lower end of the first joint 6, a slidable positioning ring 11 is slidably installed on the outside of the silicone hose 1, a filter 12 is fixedly installed inside the second joint 9, and the slidable positioning ring 11 slides on the outside of the silicone hose 1, thereby realizing the adjustment and positioning function.

[0020] Furthermore, four side holes 4 are arranged at equal intervals to enable better sampling.

[0021] Furthermore, a first hollow groove 51 is provided inside the rubber stopper 5, and the first hollow groove 51 is connected to the first ventilation groove 2. The sampling double-tube structure design is convenient for ventilation of the patient and also for collecting and monitoring the carbon dioxide content.

[0022] Furthermore, a third empty groove 61 is provided on the first connector 6 , and the third empty groove 61 is connected to the first empty groove 51 to facilitate ventilation of the patient. The first ventilation groove 2 occupies three quarters of the silicone hose 1 .

[0023] Furthermore, one end of the sampling tube 8 close to the first joint 6 is adapted to the third ventilation groove 7, and the second joint 9 and the other end of the sampling tube 8 are connected to each other, which is convenient for use.

[0024] Furthermore, a second empty groove 1001 is opened inside the third joint 10 , and the third joint 10 is inserted into the second ventilation groove 3 , and the second ventilation groove 3 occupies one quarter of the silicone hose 1 .

[0025] Working principle: First, insert the sampling tube 8 into the third ventilation groove 7, insert the third connector 10 into the second ventilation groove 3, and connect the first ventilation groove 2 with the first empty groove 51 to install, and the whole is installed. The second connector 9 is connected to the monitor equipment. After the installation is completed, the bottom end of the silicone hose 1 is inserted into the patient's nasal cavity, and extends through the nasal cavity to the glottis of the patient's throat to help the patient breathe smoothly. When breathing, air circulates through the first ventilation groove 2, the first empty groove 51 and the third empty groove 61, and the second ventilation groove 3 is connected to the third ventilation groove 7. The second ventilation slot 3 is separated from the first ventilation slot 2 to reduce the interference of oxygen flow on the accuracy of end-tidal carbon dioxide monitoring during high-flow oxygen supply or anesthesia (respiratory) machine ventilation. The exhaled gas is collected by the sampling tube 8 through the second ventilation slot 3. The exhaled gas contains some sputum and hydrocondensate, which can be avoided and reduced by appropriately expanding the second ventilation slot 3. Sampling can be better performed through the side hole 4. At the same time, the nasopharyngeal ventilation tube can better reach the glottis to help the patient breathe.

[0026] Finally, it should be noted that the above content is only used to illustrate the technical solution of the present invention, rather than to limit the scope of protection of the present invention. Simple modifications or equivalent substitutions of the technical solution of the present invention by ordinary technicians in this field do not deviate from the essence and scope of the technical solution of the present invention.

Claims

1. A disposable sterile double-tube nasopharyngeal ventilation tube, comprising a silicone hose (1), characterized in that: The silicone hose (1) is provided with a first ventilation groove (2) inside, a second ventilation groove (3) inside the silicone hose (1) is provided on the right side of the first ventilation groove (2), a side hole (4) is provided on the outside of the silicone hose (1) near the second ventilation groove (3), a rubber plug (5) is provided inside the silicone hose (1), a first joint (6) is fixedly connected to the upper end of the rubber plug (5), a third ventilation groove (7) is provided on the right side of the first joint (6), a sampling tube (8) is provided inside the third ventilation groove (7), a second joint (9) is provided at one end of the sampling tube (8) away from the third ventilation groove (7), a third joint (10) is fixedly connected to the lower end of the first joint (6), a slidable positioning ring (11) is slidably installed on the outside of the silicone hose (1), and a filter (12) is fixedly installed inside the second joint (9); A first hollow groove (51) is provided inside the rubber stopper (5), and the first hollow groove (51) is connected to the first ventilation groove (2); The first joint (6) is provided with a third empty slot (61), and the third empty slot (61) is connected to the first empty slot (51); One end of the sampling tube (8) close to the first joint (6) is adapted to the third ventilation groove (7), and the second joint (9) is connected to the other end of the sampling tube (8); A second empty groove (1001) is provided inside the third joint (10), and the third joint (10) is inserted into the second ventilation groove (3).

2. The disposable sterile double-tube nasopharyngeal ventilation tube according to claim 1, characterized in that: Four side holes (4) are arranged at equal intervals.

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