CN215078951U - Sampling device for helicobacter pylori urea breath test - Google Patents

Abstract

The utility model discloses a helicobacter pylori urea sampling device for breath test belongs to the medical supplies field, including collection chamber, blowing mechanism and hose, be provided with blowing mechanism on the collection chamber, blowing mechanism includes blowing nozzle and seal nozzle, seal nozzle and collection chamber sealing connection, be provided with contrary mechanism in the seal nozzle, seal nozzle lateral wall upper portion is seted up threadedly, it has blowing nozzle to peg graft in the seal nozzle upper end, the spiro union has sealed lid on the blowing nozzle, it is provided with the hose to run through on the lateral wall of blowing nozzle bottom, it is equipped with the pipe clamp to be close to blowing nozzle end on the hose, the hose other end is installed against the tang. The patient can easily determine when to begin collecting the gas sample and the insufflation nozzle can be discarded after collection to facilitate subsequent testing by the physician. The utility model discloses simple structure, the helicobacter pylori urea breath test of being convenient for is with sampling.

Description

Sampling device for helicobacter pylori urea breath test

Technical Field

The utility model relates to an experimental sampling device specifically is a sampling device for helicobacter pylori urea breath test belongs to the medical supplies field.

Background

The helicobacter pylori urea breath test is a method for detecting helicobacter pylori infection by using nuclide-labeled urea as a breath test. The principle is that the urea enzyme with high activity of helicobacter pylori is utilized, the 13C or 14C marked urea can be decomposed by a subject after the subject takes the urea orally, the generated CO2 is discharged through expiration, and the change of the marked CO2 in the expired air is measured to judge whether the helicobacter pylori infection exists.

Chinese patent with publication number CN209542209U discloses a carbon 13 expiration test anti-backflow air collecting bag, the utility model discloses a set up the check valve in air inlet department for the patient breathes into the gas of air collecting belt and can in time be sealed, reduces gaseous revealing. But the medical staff is required to guide the patient to deeply suck a breath, slowly spit out the breath in the mouth, forcibly exhale the air in the lung against the air inlet, and the valve core of the check valve moves downwards so that the air can enter the bag body; after blowing, the case of check valve kick-backs, blocks up the air inlet and reduces the revealing of patient's expired gas, and its operation degree of difficulty is big, and the difficult operation of patient has increased medical staff's working strength, and in addition, the patient blows the back oral area direct contact and blows the mouth, directly seals with sealed lid during the collection, easily causes the pollution doctor follow-up test of being not convenient for.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a helicobacter pylori urea sampling device for breath test, the helicobacter pylori urea breath test sampling of being convenient for.

The utility model solves the technical problems that:

the air blowing structure of the sampling device for the helicobacter pylori urea breath test is directly sealed and stored after air collection is completed, and the air blowing structure is stained with bacteria and saliva in the mouth of a patient, which is not beneficial to follow-up tests of doctors.

It is not easy for the patient to judge whether carbon dioxide has been expelled from the mouth and trachea and to begin collecting carbon dioxide expelled from the lungs.

The purpose of the utility model can be realized by the following technical scheme: the utility model provides a helicobacter pylori urea sampling device for breath test, includes collection chamber, blowing mechanism and hose, blowing mechanism includes blowing nozzle and seal nozzle, seal nozzle and collection chamber sealing connection, screw thread has been seted up on seal nozzle lateral wall upper portion, be provided with contrary mechanism that ends in the seal nozzle, it has blowing nozzle to peg graft in the seal nozzle upper end, it is provided with the hose to run through on the lateral wall of blowing nozzle bottom, be close to blowing nozzle end on the hose and install the pipe clamp, the hose other end is installed and is moved against the tang.

Further, contrary mechanism includes valve gap, spacing collar, telescopic machanism and disk seat, the spacing collar setting on sealing nozzle inside wall upper portion and with sealing nozzle integrated into one piece, the disk seat setting in sealing nozzle inside wall lower part and with sealing nozzle integrated into one piece, telescopic machanism is installed to the disk seat upper end, telescopic machanism upper end fixedly connected with valve gap, the valve gap supports and leans on the spacing collar, the breakthrough thorn is installed to the valve gap upper end.

Furthermore, a plurality of slot has been seted up to the sealing nozzle up end, the circular pit of a plurality of has been seted up to the inside lateral wall of slot, a plurality of inserted bar is installed along circumference correspondence to the terminal surface under the blowing nozzle, be provided with globular arch on the inserted bar, the blowing nozzle lower extreme is provided with the mouth of giving vent to anger, it has the film to give vent to anger to chew the upper cover.

Further, contrary mouthful one end of ending is provided with the air inlet, the contrary mouthful other end of ending is provided with the gas outlet, be provided with the fixed plate on the contrary mouthful inside wall of ending, contrary tang is kept away from and is provided with the dog on the fixed plate lateral wall, the dog is located air inlet one side, fixed plate and dog all with contrary mouthful integrated into one piece that ends, the fixed plate has the closing plate through a plurality of torsional spring connection.

Furthermore, the upper end of the air blowing nozzle is connected with a sealing cover in a threaded manner.

Further, the sealing cap may be screw-coupled with the sealing nozzle.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses during the use, the spherical protruding card on the initial position inserted bar is opened the pipe clamp in the circular pit that the slot is close to the sealing nozzle tip, begins to blow. Because of the blowing mouth lower extreme is provided with the film, the film stops the circulation of gas, and exhaled gas passes through the hose, has placed reagent in the hose, and when the sufficient volume of exhaled gas, reagent is whole discolours, can upwards mention the sealing nozzle this moment, and globular arch is chewed with the gas outlet and is pressed down the valve gap, and the break-through thorn of valve gap upper end is punctured the lower extreme film of gas outlet, conveniently forms the passageway, presss from both sides tight hose with the pipe clamp and prevents that gas loss, and the gas of lung gets into the plenum chamber.

2. The utility model discloses when using, through blowing nozzle and sealing nozzle cooperation, realize that the blowing nozzle is convenient to be dismantled, directly extract the blowing nozzle when blowing the end, the valve gap is until leaning on spacing circle by the extending structure jack-up this moment, constitutes seal structure, prevents that gas from escaping from the collection chamber, and the blowing nozzle can be abandoned, directly with the sealing cap spiro union on sealing nozzle, avoids polluting.

3. The hose tail end is provided with contrary tang, avoids reagent in the hose and air contact, backs up the closing plate when blowing, and when the hose was cliied to the pipe clamp, the air did not circulate, and the closing plate supports and leans on the dog through the effect of torsional spring, forms seal structure.

Drawings

In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the structure of the blowing nozzle and the sealing nozzle of the present invention;

fig. 3 is a schematic view of the structure of the back stop of the present invention.

In the figure: 1. a gas collection chamber; 2. a blowing nozzle; 3. sealing the nozzle; 4. a sealing cover; 5. a hose; 21. an air outlet nozzle; 22. inserting a rod; 31. a slot; 32. a valve cover; 33. a limiting ring; 34. breaking through the thorn; 35. a telescoping mechanism; 36. a valve seat; 51. a pipe clamp; 52. a back stop; 521. an air inlet; 522. an air outlet; 523. a torsion spring; 524. a fixing plate; 525. a sealing plate; 526. and a stop block.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-3, a sampling device for a helicobacter pylori urea breath test comprises a gas collection chamber 1, a gas blowing mechanism and a hose 5, wherein the gas blowing mechanism is arranged on the gas collection chamber 1, the gas blowing mechanism comprises a gas blowing nozzle 2 and a sealing nozzle 3, the sealing nozzle 3 is hermetically connected with the gas collection chamber 1, a check mechanism is arranged in the sealing nozzle 3, the check mechanism comprises a valve cover 32, a limiting ring 33, a telescopic mechanism 35 and a valve seat 36, the limiting ring 33 is arranged on the upper portion of the inner side wall of the sealing nozzle 3 and is integrally formed with the sealing nozzle 3, the valve seat 36 is arranged on the lower portion of the inner side wall of the sealing nozzle 3 and is integrally formed with the sealing nozzle 3, the telescopic mechanism 35 is arranged at the upper end of the valve seat 36, the telescopic mechanism 35 can be a compression spring and a telescopic rod, the upper end of the telescopic mechanism 35 is fixedly connected with the valve cover 32, and the valve cover 32 is abutted against the limiting ring 33 to form a sealing structure, the upper end of the valve cover 32 is provided with a break-through thorn 34 for piercing a film, the upper part of the outer side wall of the sealing nozzle 3 is provided with threads, the upper end surface of the sealing nozzle 3 is provided with a plurality of slots 31 along the circumferential direction, the inner side wall of the slots 31 is provided with a plurality of circular pits, the sealing nozzle 3 is matched and inserted with the air blowing nozzle 2 through the slots 31 and the inserted rod 22, the lower end surface of the air blowing nozzle 2 is correspondingly provided with a plurality of inserted rods 22 along the circumferential direction, the inserted rod 22 is made of elastic plastic, the inserted rod 22 is provided with a spherical bulge which is convenient to be matched with the circular pits in the slots 31, the initial position is inserted in the circular pits near the port, the lower end of the air blowing nozzle 2 is provided with an air outlet nozzle 21, the air outlet nozzle 21 is covered with a film (not shown in the figure) for sealing the air outlet nozzle 21, the upper end of the air blowing nozzle 2 is screwed with a sealing cover 4, and the sealing cover 4 can also be screwed with the sealing nozzle 3, run through on the 2 bottom lateral walls of blowing nozzle and be provided with hose 5, be close to blowing nozzle 2 end on the hose 5 and install pipe clamp 51, the contrary tang 52 is installed to the 5 other end of hose, be provided with carbon dioxide detection reagent on the 5 inside walls of hose, contrary tang 52 one end is provided with air inlet 521, contrary tang 52 other end is provided with gas outlet 522, be provided with fixed plate 524 on the contrary tang 52 inside wall, contrary tang 52 keeps away from and is provided with dog 526 on the fixed plate 524 lateral wall, dog 526 is located air inlet 521 one side, fixed plate 524 and dog 526 all with contrary tang 52 integrated into one piece, fixed plate 524 is connected with closing plate 525 through a plurality of torsional spring 523, closing plate 525, fixed plate 524 and dog 526 constitute by the good material of sealing, are convenient for isolated outside air.

The working principle is as follows: when the utility model is used, firstly, the patient opens the sealing cover 4, deeply sucks a breath to aim the blowing nozzle 2 at the mouth, opens the pipe clamp 51, gently discharges the gas in the mouth and the trachea, observes the detection reagent in the hose 5, when the gas changes, proves that the gas in the mouth and the trachea is exhausted, the exhaled air is the air of the lung, namely the air which needs to be collected and sampled, at the moment, the sealing nozzle 3 is lifted upwards, the spherical bulge on the inserted rod 22 enters the circular pit in the slot 31, breaks through the thorn 34 to puncture the film, the air outlet 21 pushes the valve cover 32 away from the spacing ring 33, at the moment, the sealing nozzle 3 and the blowing nozzle 2 form a gas channel, the pipe clamp 51 is clamped, the blowing is continued, the carbon dioxide in the lung enters the gas collection chamber 1, the blowing nozzle 2 is pumped away from the sealing nozzle 3 after the collection is finished, at the moment, the valve cover 32 resets and forms a sealing structure with the spacing ring 33, the gas in the collection chamber 1 is prevented from flowing out, and (5) covering the sealing cover 4, finishing the gas sampling work and waiting for the test.

While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention, and should not be considered as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.

Claims (5)

1. The utility model provides a helicobacter pylori urea sampling device for breath test, includes collection chamber (1), blowing mechanism and hose (5), its characterized in that, blowing mechanism includes blowing nozzle (2) and sealing nozzle (3), sealing nozzle (3) and collection chamber (1) sealing connection, screw thread has been seted up on sealing nozzle (3) lateral wall upper portion, be provided with contrary mechanism in sealing nozzle (3), it has blowing nozzle (2) to peg graft in sealing nozzle (3) upper end, it is provided with hose (5) to run through on blowing nozzle (2) bottom lateral wall, hose (5) are gone up and are close to blowing nozzle (2) end and install pipe clamp (51), contrary tang (52) are installed to the hose (5) other end.

2. The sampling device for the helicobacter pylori urea breath test according to claim 1, wherein the check mechanism comprises a valve cover (32), a limiting ring (33), a telescopic mechanism (35) and a valve seat (36), the limiting ring (33) is arranged on the upper portion of the inner side wall of the sealing nozzle (3) and is integrally formed with the sealing nozzle (3), the valve seat (36) is arranged on the lower portion of the inner side wall of the sealing nozzle (3) and is integrally formed with the sealing nozzle (3), the telescopic mechanism (35) is arranged at the upper end of the valve seat (36), the valve cover (32) is fixedly connected with the upper end of the telescopic mechanism (35), the valve cover (32) abuts against the limiting ring (33), and the breakthrough thorn (34) is arranged at the upper end of the valve cover (32).

3. The sampling device for the helicobacter pylori urea breath test according to claim 1, wherein a plurality of slots (31) are formed in the upper end face of the sealing nozzle (3), a plurality of circular pits are formed in the side wall of the inside of each slot (31), a plurality of insertion rods (22) are correspondingly installed on the lower end face of the blowing nozzle (2) along the circumferential direction, spherical protrusions are arranged on the insertion rods (22), an air outlet nozzle (21) is arranged at the lower end of the blowing nozzle (2), and a thin film covers the air outlet nozzle (21).

4. The sampling device for the helicobacter pylori urea breath test is characterized in that one end of the inverted spigot (52) is provided with an air inlet (521), the other end of the inverted spigot (52) is provided with an air outlet (522), a fixing plate (524) is arranged on the inner side wall of the inverted spigot (52), a stop block (526) is arranged on the side wall, away from the fixing plate (524), of the inverted spigot (52), the stop block (526) is positioned on one side of the air inlet (521), the fixing plate (524) and the stop block (526) are integrally formed with the inverted spigot (52), and the fixing plate (524) is connected with a sealing plate (525) through a plurality of torsion springs (523).

5. The sampling device for the helicobacter pylori urea breath test according to claim 1, wherein a sealing cover (4) is screwed on the upper end of the blowing nozzle (2).

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