CN213249263U

CN213249263U - Breath test gas collection device

Info

Publication number: CN213249263U
Application number: CN202020937060.7U
Authority: CN
Inventors: 丁瑜; 万军; 王丽媛
Original assignee: Chinese PLA General Hospital
Current assignee: Chinese PLA General Hospital
Priority date: 2020-05-28
Filing date: 2020-05-28
Publication date: 2021-05-25
Anticipated expiration: 2030-05-28

Abstract

The utility model relates to a breath test gas collection system belongs to medical instrument technical field, has solved among the prior art problem of gas acquisition difficulty when patient does not cooperate in the breath test process. The utility model comprises a mask, a breather pipe, a connecting pipe and a collecting bag, wherein the breather pipe is arranged inside the mask and is detachably connected with the mask; one end of the connecting pipe is in threaded connection with the ventilating part of the mask, and the other end of the connecting pipe is arranged at the opening end of the collecting bag and used for sealing the opening of the collecting bag; the mask is used for sealing the mouth of a patient, and the vent pipe is used for stretching into the mouth of the patient to prop open teeth. The utility model discloses a gaseous collection system passes through the sealed patient oral area of gauze mask, and the breather pipe stretches into the patient oral cavity, collects the gas of bag collection patient oral cavity, has reduced the degree of difficulty that does not cooperate the gaseous collection of patient, simple structure, convenient operation.

Description

Breath test gas collection device

Technical Field

The utility model relates to the technical field of medical equipment, especially, relate to a breath test gas collection system.

Background

The breath test is a method for researching physiology and diseases by orally taking a certain amount of test substrate for a detected person and detecting the concentration changes of carbon dioxide, methane, hydrogen and the like in exhaled air, is an important means for noninvasively checking the functions of a digestive system, and is widely applied at present. After the examinee is ready before examination, the examinee needs to hold the filter tip of the sample bag, breathe out quietly (without deep breathing), take down the sample bag immediately after the sample bag is fully blown, tighten and seal the sample bag, and blow 1-10 collecting bags every 20 minutes after the examinee orally takes a certain amount of test substrates (generally lactulose solution) according to the examination purpose. The breath test has the advantages of no wound, convenience, sensitivity and the like, plays an important role in the fields of digestive disease diagnosis, scientific research and the like, mainly comprises a 14c urea breath test, a methane hydrogen breath test and the like at present, and has wide adaptation diseases. However, patients who are unable to cooperate clinically, such as infants and unconscious patients, will cause trouble in gas collection work, and will not be able to continue breath test.

SUMMERY OF THE UTILITY MODEL

In view of the above analysis, the present invention aims to provide a breath test gas collecting device for solving the problem of difficult gas collection when the patient is not matched in the existing breath test process.

The purpose of the utility model is mainly realized through the following technical scheme:

a breath test gas collecting device comprises a mask, a vent pipe, a connecting pipe and a collecting bag, wherein the vent pipe is arranged inside the mask and is detachably connected with the mask; one end of the connecting pipe is in threaded connection with the ventilating part of the mask, and the other end of the connecting pipe is arranged at the opening end of the collecting bag and used for sealing the opening of the collecting bag; the mask is used for sealing the mouth of a patient, and the vent pipe is used for stretching into the mouth of the patient to prop open teeth.

Further, the ventilation part is funnel-shaped; the ventilation part is provided with a round pipe, and the end part of the round pipe is provided with a one-way valve.

Furthermore, the connecting pipe and the round pipe are detachably connected through the adapter cap.

Further, the mask further comprises a sealing part which is arranged on the periphery of the ventilation part and can seal the mouth of the patient.

Furthermore, a support frame is arranged in the sealing part and is opposite to the ventilation part.

Furthermore, the lower extreme of support frame is equipped with three equipartition support claws, the upper end of support frame is for being equipped with the cylinder section of thick bamboo of external screw thread.

Furthermore, the supporting claws are fixedly connected with the upper end of the ventilation part, and gaps are formed between the adjacent supporting claws.

Further, one end of the breather pipe is in threaded connection with the cylindrical barrel, and the other end of the breather pipe is provided with a round angle.

Furthermore, a flow regulator is arranged on the connecting pipe, and the flow regulator can seal the connecting pipe.

Further, the mask is further provided with an ear belt, the front end of the ear belt is provided with a hole and sleeved on the ventilation part, and the other end of the ear belt can be worn on the ears of the patient.

Compared with the prior art, the utility model discloses can realize one of following beneficial effect at least:

(1) the utility model discloses a be equipped with the breather pipe in the gauze mask, the breather pipe stretches into patient's oral area, avoids patient's oral area closed, through collecting the gas of bag direct collection patient's oral area, need not patient's cooperation and exhales, to the patient that the consciousness is unclear or can not cooperate the collection, has reduced the degree of difficulty of the gaseous collection of expiration test.

(2) The utility model discloses a connecting pipe and pipe can be dismantled through the switching cap and be connected, and the tip of pipe is equipped with the check valve, is equipped with flow regulator on the connecting pipe, makes the change that can collect the bag among the gas acquisition process, simple structure, convenient operation.

(3) The utility model discloses a breather pipe and support frame can be dismantled and connect, make gaseous collection system both be applicable to the patient that the cooperation was gathered, also be applicable to the patient that can not cooperate the collection, and application scope is wide.

(4) The utility model discloses a gas collection system wears the gauze mask at patient's head through the ear area, need not handheld, has released patient or medical personnel's both hands, has improved collection efficiency.

(5) The utility model discloses a collection bag is sealed through the one end of connecting pipe, is equipped with flow regulator on the connecting pipe, and flow regulator can reach sealing connection pipe, can control gaseous release amount of detection time measuring gas again, simple structure, convenient to use.

The utility model discloses in, can also make up each other between the above-mentioned each technical scheme to realize more preferred combination scheme. Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.

Drawings

The drawings are only for purposes of illustrating particular embodiments and are not to be construed as limiting the invention, wherein like reference numerals are used to designate like parts throughout the drawings.

FIG. 1 is a schematic diagram (I) of the overall structure of a gas collection device according to an embodiment;

FIG. 2 is a schematic view of the overall structure of the gas collection device according to the second embodiment;

FIG. 3 is a cross-sectional view of a vent with a first adapter cap according to an embodiment.

Reference numerals:

1-mask; 11-a seal; 111-a support frame; 12-a vent; 121-round tube; 122-a one-way valve; 2-a breather pipe; 3-connecting pipe; 31-a flow regulator; 4-collecting bag.

Detailed Description

The following detailed description of the preferred embodiments of the invention, which is to be read in connection with the accompanying drawings, forms a part of the invention, and together with the embodiments of the invention, serve to explain the principles of the invention and not to limit the scope of the invention.

In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the term "connected" should be interpreted broadly, and may be, for example, a fixed connection, a detachable connection, or an integral connection, which may be a mechanical connection, an electrical connection, which may be a direct connection, or an indirect connection via an intermediate medium. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The terms "top," "bottom," "above … …," "below," and "on … …" as used throughout the description are relative positions with respect to components of the device, such as the relative positions of the top and bottom substrates inside the device. It will be appreciated that the devices are multifunctional, regardless of their orientation in space.

The utility model discloses a specific embodiment, as shown in fig. 1 to 3, discloses an expiratory test gas collecting device, which comprises a mask 1, a vent pipe 2, a connecting pipe 3 and a collecting bag 4, wherein the vent pipe 2 is arranged on the concave side of the mask 1 and is detachably connected with the mask 1, one end of the connecting pipe 3 is in threaded connection with a vent part 12 of the mask 1, and the other end is arranged at the opening end of the collecting bag 4; the mask 1 is used to seal the mouth of a patient and the vent tube 2 extends into the mouth of the patient.

Further, the collecting bag 4 is provided with three structural forms: (1) the collecting bag 4 is a negative pressure bag, and gas in the oral cavity of the patient is directly sucked through negative pressure; (2) the collecting bag 4 is provided with a two-layer structure, the outer layer is a hard shell and is made of transparent materials, the inner layer is a soft bag, the air pressure between the inner layer and the outer layer is smaller than the atmospheric pressure, and the outer layer shell of the collecting bag 4 is made of transparent materials, so that whether the soft bag in the inner layer is inflated or not can be observed conveniently; (3) the collection bag 4 is provided with a suction opening which can be connected to a suction device, such as a syringe, by means of which the gases in the mouth of the patient are sucked. Compared with the prior art, this embodiment passes through the sealed patient oral area of gauze mask, and the breather pipe stretches into the patient oral cavity, prevents that patient's tooth from tightly closing, avoids not exhaling through the oral cavity, utilizes and collects the bag and carries out gaseous collection to the patient, need not to force patient's cooperation to accomplish the unconscious patient or not cooperate the collection of exhaling of patient, simple and practical.

The mask 1 includes a sealing portion 11 and a ventilation portion 12, wherein the ventilation portion 12 is disposed in the middle of the sealing portion 11, that is, the sealing portion 11 is disposed at the outer periphery of the ventilation portion 12 for sealing the mouth of the patient. The ventilation portion 12 has an arc-shaped structure with a circular tube 121, and the ventilation portion 12 has a funnel shape. The inside of sealing portion 11 is equipped with support frame 111, and support frame 111 is just setting up ventilation portion 12, and the lower extreme of support frame 111 is equipped with the claw that props up of three equipartition, and support frame 111 is connected with ventilation portion 12's upper end through the claw that props up of three equipartition, and the upper end of support frame 111 is a cylinder section of thick bamboo, and a cylinder section of thick bamboo is equipped with the external screw thread.

It should be noted that, there are gaps between the three support claws of the support frame 111, the gas in the sealing part 11 can flow into the ventilation part 12 through the gaps between the support claws, and the gas in the patient's mouth can directly enter the sealing part 11 or enter the ventilation part 12 through the ventilation pipe 2 connected to the upper end of the support frame 111. The support frame 111 and the vent portion 12 are integrally formed.

Consider gauze mask 1's leakproofness, gauze mask 1's sealing 11 is the silica gel material, and cooperation patient facial profile can seal patient's oral area, and the time air of avoiding expiration experiment enters into the inside detection precision that reduces of gauze mask 1, avoids the gas leakage in the patient oral cavity simultaneously, leads to gathering gaseously not enough.

Consider that consciousness or children patient easily close the oral area, can't exhale through the oral area, connect breather pipe 2 in the upper end of support frame 111, breather pipe 2 stretches to the patient oral cavity, struts the tooth. In order to avoid that breather pipe 2 drops off with support frame 111 when using, in falling into patient's trachea, the accident takes place, and the one end of breather pipe 2 is equipped with the internal thread, with the external screw thread connection of support frame 111 upper end, and the other end of breather pipe 2 carries out the radius angle and handles, makes to stretch into the end mellow and full.

In order to avoid the discomfort caused by the fact that the vent pipe 2 penetrates into the mouth, the length of the vent pipe 2 extending into the mouth is 15-20 mm, the outer diameter of the vent pipe 2 is 10-15 mm, and the wall thickness is 1-1.5 mm. It is noted that the vent tube 2 is made of food grade material.

The connecting pipe 3 is arranged at the end part of the circular pipe 121, specifically, the end part of the circular pipe 121 is provided with a first adapter cap, the first adapter cap is in a stepped circular truncated cone structure, a stepped through hole is formed inside the first adapter cap, and a large-diameter through hole is provided with an internal thread. The first adapter cap is integrally formed with the barrel 121. The connecting pipe 3 is connected with the round pipe 121 through a switching cap.

Considering that the gas may flow back during the gas collection process, the end of the circular tube 121 is provided with a check valve 122. The check valve 122 can prevent the backflow problem in the gas collection process, and can ensure that the collection bag 4 and the connecting pipe 3 are not replaced to continuously collect gas without entering the inlet cover 1 when the external air is removed.

In this embodiment, the upper end of connecting pipe 3 is equipped with the second and changes the cap, and the second changes the cap to be the ladder round platform, and inside is equipped with the through-hole, and the path round platform is equipped with the external screw thread, and the diameter of path round platform equals the screw thread aperture of first connecting cap. The tip of connecting pipe 3 sets up the second and changes the cap, and the tip of pipe 121 is equipped with first switching cap, and first switching cap passes through screw thread adaptation with the second switching cap to be connected, can change collection bag 4 in the gas collection process, realizes gathering in succession.

In order to ensure that the gas in the collection bag 4 is not leaked when the collection bag 4 is replaced in the collection process and the gas in the collection bag 4 is checked, the release amount of the gas can be controlled, the flow regulator 31 is arranged on the connection pipe 3, the flow regulator 31 is a flow regulator used on an infusion apparatus, and the connection pipe 3 can be sealed by extruding the connection pipe 3 through sliding the roller on the flow regulator 31.

It should be noted that the connecting pipe 3 is made of soft material, so that it can be sealed in the roller extrusion process.

The collection bag 4 is provided with a hard opening, a thread is arranged on the opening, the other end of the connecting pipe 3 is provided with a sealing cover, and the sealing cover is used for sealing the opening of the collection bag 4.

The gas collecting device can be used for patients with unclear consciousness or patients without coordination, and can also be used for patients with normal coordination, when the gas collecting device is used for patients with unclear consciousness or patients without coordination, the support frame 111 is provided with the breather pipe 2 for expanding the oral cavity of the patient, so that the teeth of the patient are prevented from being tightly closed, and the patient does not exhale through the oral cavity; when used to fit a patient normally, the ventilation tube 2 may not be placed.

The mask 1 is further provided with an ear band (not shown) for fixing the mask 1 to the head in consideration of continuity in collecting gas. Specifically, the front end of the ear band is provided with a hole and sleeved on the ventilation part 12, and the other end of the ear band is worn on the ear.

The utility model discloses, stretch into the patient oral cavity through the breather pipe, collect the gas of bag collection patient oral area, need not to put forward the requirement to patient's degree of adaptability, especially to the children patient that the consciousness is unclear or can not cooperate the collection, reduced the degree of difficulty that the gas of expiration test was gathered, the connecting pipe makes the collection bag to change with whole body detachable structure simultaneously, realizes gathering in succession.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention.

Claims

1. The breath test gas collecting device is characterized by comprising a mask (1), a vent pipe (2), a connecting pipe (3) and a collecting bag (4), wherein the vent pipe (2) is arranged inside the mask (1) and is detachably connected with the mask (1); one end of the connecting pipe (3) is in threaded connection with the ventilation part (12) of the mask (1), and the other end of the connecting pipe (3) is arranged at the opening end of the collecting bag (4) and used for sealing the opening of the collecting bag (4); the mask (1) is used for sealing the mouth of a patient, and the vent pipe (2) is used for stretching into the mouth of the patient to prop open teeth.

2. Breath test gas collection apparatus according to claim 1, wherein the venting portion (12) is funnel-shaped; the ventilation part (12) is provided with a circular tube (121), and the end part of the circular tube (121) is provided with a one-way valve (122).

3. Breath test gas collection assembly according to claim 2, wherein the connection tube (3) is detachably connected to the circular tube (121) by means of an adapter cap.

4. The breath test gas collection apparatus according to claim 1, wherein the mask (1) further comprises a sealing portion (11), and the sealing portion (11) is provided at an outer periphery of the ventilation portion (12) and is capable of sealing a mouth of the patient.

5. The breath test gas collection device according to claim 4, wherein a support frame (111) is disposed inside the sealing portion (11), and the support frame (111) is disposed opposite to the ventilation portion (12).

6. The breath test gas collection device according to claim 5, wherein the lower end of the support frame (111) is provided with three evenly distributed support claws, and the upper end of the support frame (111) is a cylindrical barrel provided with external threads.

7. The breath test gas collection device according to claim 6, wherein the support claws are fixedly connected to the upper end of the vent part (12), and a gap is formed between adjacent support claws.

8. The breath test gas collection device according to claim 6, wherein one end of the vent pipe (2) is screwed with the cylindrical barrel, and the other end of the vent pipe (2) is provided with a round corner.

9. Breath test gas collection assembly according to claim 1, wherein the connection tube (3) is provided with a flow regulator (31), the flow regulator (31) being capable of sealing the connection tube (3).

10. An breath test gas collection device according to any one of claims 1 to 9, wherein the mask (1) is further provided with an ear strap, the front end of the ear strap is provided with a hole and is sleeved on the ventilation portion (12), and the other end of the ear strap can be worn on the ear of the patient.