Sputum specimen collecting device

Abstract

The utility model relates to the technical field of medical instruments, and discloses a sputum sample collecting device which comprises a sample bottle and a bottle plug, the bottle plug is connected with a negative pressure pipe and an extraction pipe, the extraction pipe is connected with a saliva separator, and the negative pressure pipe is provided with a first branch pipe communicated with the saliva separator; the saliva separator comprises a connecting sleeve, an annular cavity is formed in a sleeve body of the connecting sleeve, the annular cavity and the connecting sleeve are coaxially arranged, and a plurality of filtering holes communicated with the annular cavity are further formed in the inner wall of the connecting sleeve; a second branch pipe communicated with the first branch pipe is arranged on the outer wall of the connecting sleeve, and the second branch pipe is communicated with the annular cavity. Saliva in the extracted sputum can be removed, the content of the saliva in the sputum is reduced, the difficulty of sample treatment is reduced, and the accuracy of sputum sample detection is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of medical apparatus and instruments, and particularly relates to a sputum specimen collection device. BACKGROUND

[0002] For patients in coma, tracheal incision, tracheal intubation and unable to cough sputum by themselves, medical staffs in clinic need to timely perform sputum suction, sputum collection and various culture tests.

[0003] For example, the patent with the application number CN202420010817.6 discloses a sputum specimen collection device connected with a closed sputum suction tube, which comprises a sputum collection shell, characterized in that a first movable cover is detachably installed on the top of the sputum collection shell, a second movable cover is detachably installed on the bottom of the sputum collection shell, a sputum collection assembly is arranged in the sputum collection shell, and a connecting assembly is arranged in the first movable cover. The connecting assembly is arranged, and the suction tube has suction force to suck sputum into the suction tube, so that a baffle is arranged at the bottom of the connecting assembly, thereby avoiding the sputum from entering the suction tube during the sputum suction process. Although this method can quickly remove respiratory tract secretions, it still has certain defects, for example, during the sputum suction process, sputum often contains saliva, which not only increases the complexity of sample processing, but also may interfere with the microbiological analysis of sputum.

[0004] In view of the above defects in the prior art, the present application is produced. UTILITY MODEL CONTENT

[0005] The utility model aims to provide a sputum specimen collection device, which can remove saliva from extracted sputum, reduce the content of saliva in sputum, reduce the difficulty of sample processing and improve the accuracy of sputum sample detection.

[0006] To achieve the above technical purpose, the utility model adopts the following technical scheme:

[0007] A sputum specimen collection device comprises a sample bottle and a bottle plug, the bottle plug is connected with a negative pressure pipe and an extraction pipe, the extraction pipe is connected with a saliva separator, and the negative pressure pipe is provided with a first branch pipe in communication with the saliva separator; the saliva separator comprises a connecting sleeve, an annular cavity is formed in the cylinder of the connecting sleeve, the annular cavity is coaxially arranged with the connecting sleeve, and a plurality of filter holes in communication with the annular cavity are further formed in the inner wall of the connecting sleeve; a second branch pipe in communication with the first branch pipe is arranged on the outer wall of the connecting sleeve, and the second branch pipe is in communication with the annular cavity.

[0008] Further, the filter holes are obliquely arranged, and an end of the filter holes towards the inner wall is lower than an end of the filter holes towards the annular cavity. The oblique arrangement of the filter holes can more easily separate saliva from sputum.

[0009] Further, the filter holes are distributed in the middle and upper part of the annular cavity, and the second branch pipe communicates with the lower part of the annular cavity. The filter holes are staggered with the second branch pipe, so that the suction force is not directly opposite to the filter holes, and the suction force is not too large to cause the sputum to fail to fall into the sample bottle.

[0010] Further, a regulating valve is connected between the first branch pipe and the second branch pipe; the regulating valve comprises a connecting pipe body and a ball valve body rotatably arranged in the connecting pipe body, a connecting rod penetrating through the connecting pipe body is arranged on the ball valve body, and a knob is arranged on the top of the connecting rod. The regulating valve can control the suction force in the annular cavity.

[0011] Further, the inner bottom of the sample bottle is a concave spherical surface. In this way, the sputum entering the sample bottle can be gathered together.

[0012] Further, the negative pressure pipe and the extraction pipe are in plug-in connection with the bottle plug; the bottle plug is provided with a plug-in hole, and a sealing plug for plugging the plug-in hole is connected to the outer side of the bottle plug. The sealing plug facilitates the sealed storage of the sputum sample, and prevents the sample from being contaminated.

[0013] After the above structure is adopted, compared with the prior art, the sputum sample collection device of the utility model is characterized in that a saliva separator is arranged on the extraction pipe, and the saliva separator is connected with the negative pressure pipe, when the sputum extracted through the extraction pipe passes through the saliva separator, the saliva in the sputum can be extracted from the filter holes under the action of the negative pressure pipe due to the fact that the viscosity of the sputum is greater than that of the saliva, and the sputum will continue to slowly fall into the sample bottle under the action of the gravity of the sputum, so that the saliva in the sputum can be separated, the difficulty of sample processing is reduced, and the accuracy of sputum sample detection is improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] The utility model can be further illustrated by the non-limiting embodiments shown in the drawings.

[0015] Figure 1 It is a structural schematic view of the utility model;

[0016] Figure 2 It is a sectional view of the utility model; Figure 1

[0017] Figure 3 It is a sectional view of the saliva separator in the utility model;

[0018] Figure 4 It is a structural schematic view of the regulating valve in the utility model;​

[0019] Figure 5 is a structural diagram of the bottle plug in the utility model; Figure 4 is a structural diagram of the bottle plug in the utility model;

[0020] Figure 6 is a structural diagram of the bottle plug in the utility model.

[0021] The main component symbols are explained as follows: sample bottle 1, bottle plug 2, plug-in hole 21, sealing plug 22, negative pressure pipe 3, first branch pipe 31, extraction pipe 4, saliva separator 5, connecting sleeve 51, second branch pipe 511, annular cavity 52, filter hole 53, adjusting valve 6, connecting pipe body 61, ball valve body 62, connecting rod 621, knob 622. DETAILED DESCRIPTION

[0022] The utility model will be explained in detail in combination with the drawings and specific embodiments, and it should be noted that, in the drawings or the description, similar or same parts all use the same figure number, and the implementation mode not drawn or described in the drawings is the form known by the ordinary skilled in the art. In addition, the direction language mentioned in the embodiments, such as 'up', 'down', 'top', 'bottom', 'left', 'right', 'front', 'back' and the like, is only the direction of the drawings, and is not used to limit the protection scope of the utility model.

[0023] As Figures 1-6As shown, the utility model relates to a kind of sputum specimen taking device, including sample bottle 1 and bottle plug 2, the top of bottle plug 2 is hard plastic material, bottom is rubber material, enhance the air tightness of sample bottle 1, bottle plug 2 is connected with negative pressure tube 3 and extraction tube 4, when using, the outer end of negative pressure tube 3 is connected with negative pressure generator, the outer end of extraction tube 4 is inserted into throat through patient oral cavity, sputum is extracted into sample bottle 1 by negative pressure generator, specifically, two insertion holes 21 are formed on bottle plug 2, negative pressure tube 3 and extraction tube 4 are respectively inserted in insertion hole 21, and the bottom end of extraction tube 4 is lower than the bottom end of negative pressure tube 3, so that the bottom end tube of negative pressure tube 3 and the bottom end tube of extraction tube 4 can be prevented too close, when sputum falls into, is extracted into negative pressure tube 3, in addition, two sealing plugs 22 are connected on the sidewall of bottle plug 2, after extracting sputum, negative pressure tube 3 and extraction tube 4 are taken out, then sealing plug 22 is used to seal insertion hole 21, avoid sample to be contaminated, in addition, to better make the sputum extracted gather together, the inner bottom of sample bottle 1 can be set as concave spherical surface.Because saliva can be mixed in sputum, can cause detection not accurate enough, extraction tube 4 is connected with saliva separator 5, and the first branch pipe 31 in communication with saliva separator 5 is arranged on negative pressure tube 3;Saliva separator 5 includes connecting sleeve 51, annular cavity 52 is formed on the cylinder of connecting sleeve 51, and annular cavity 52 is coaxially arranged with connecting sleeve 51, and a plurality of filter holes 53 in communication with annular cavity 52 are further formed on the inner wall of connecting sleeve 51;Second branch pipe 511 in communication with first branch pipe 31 is arranged on the outer wall of connecting sleeve 51, and second branch pipe 511 is in communication with annular cavity 52.The specific principle of saliva separator 5 is that when the saliva extracted by extraction tube 4 passes through saliva separator 5, because the first branch pipe 31 of negative pressure tube 3 is in communication with the second branch pipe 511 of connecting sleeve 51, therefore, negative pressure appears in the annular cavity 52 of saliva separator 5, and a certain adsorption effect appears to the sputum passing through the inner wall of connecting sleeve 51, and because the viscosity of sputum itself is relatively strong, the viscosity of saliva is relatively weak, therefore, under the suction of negative pressure, saliva is extracted into annular cavity 52 from filter hole 53, and sputum itself falls into sample bottle 1 under the action of gravity and the suction of negative pressure in sample bottle 1.

[0024] In the embodiment, to better separate saliva from sputum, filter hole 53 can be obliquely arranged, so that the end of filter hole 53 towards inner wall is lower than the end towards annular cavity 52.So when sputum passes through filter hole 53, under the action of negative pressure in annular cavity 52, saliva enters annular cavity 52 along filter hole 53, and because filter hole 53 is obliquely arranged, and the viscosity of sputum itself is relatively strong, therefore, sputum is difficult to enter filter hole 53.

[0025] In the embodiment, the filtering holes 53 are distributed in the middle and upper part of the annular cavity 52, the second branch pipe 511 communicates with the lower part of the annular cavity 52, and specifically, the filtering holes 53 are distributed in about two-thirds of the height of the annular cavity 52. The filtering holes 53 are staggered with the second branch pipe 511, so that the suction force is not too large when directly facing the filtering holes 53, and the sputum cannot fall into the sample bottle 1.

[0026] In order to better control the suction force in the annular cavity 52, the adjusting valve 6 is connected between the first branch pipe 31 and the second branch pipe 511; the adjusting valve 6 comprises a connecting pipe body 61 and a ball valve body 62 rotatably installed in the connecting pipe body 61, the ball valve body 62 is provided with a connecting rod 621 penetrating through the connecting pipe body 61, the top of the connecting rod 621 is provided with a knob 622, and the knob 622 is provided with anti-skid lines. At the beginning, the communication between the first branch pipe 31 and the second branch pipe 511 is closed by the adjusting valve 6, so that the negative pressure is formed in the sample bottle 1 in advance, and the sputum can be quickly sucked into the suction pipe 4; when the sputum is about to enter the saliva separator 5, the ball valve body 62 is controlled to make the first branch pipe 31 communicate with the second branch pipe 511, so that the negative pressure is formed in the annular cavity 52, and the saliva in the sputum is separated. During the separation process, the suction force can be adjusted by the adjusting valve 6; at the beginning, the suction force can be large to reduce the sliding speed of the sputum, and when the separation is completed, the adjusting valve 6 can be gradually closed, so that the sputum can smoothly fall into the sample bottle 1.

[0027] The use method of the utility model is as follows: first, the negative pressure pipe 3, the suction pipe 4 and the sample bottle 1 are assembled, the negative pressure pipe 3 is connected with the negative pressure generator, then the outer end of the suction pipe 4 is inserted into the throat of the patient, then the negative pressure generator is started to start sucking, when the sputum enters the saliva separator 5 during sucking, the first branch pipe 31 is communicated with the second branch pipe 511 through the adjusting valve 6, so that the negative pressure state is also formed in the annular cavity 52, the saliva mixed in the sputum flowing through is sucked, the sputum separated from the saliva continues to fall into the sample bottle 1, and after the collection is completed, the negative pressure pipe 3 and the suction pipe 4 are taken down and the plug-in hole 21 is sealed with the sealing plug 22.

[0028] The sputum specimen taking device is introduced in detail. The specific embodiment is only used to help understand the method and the core idea of the utility model. It should be pointed out that for ordinary skilled persons in the technical field, the utility model can be improved and modified without departing from the principle of the utility model, and these improvements and modifications also fall within the protection scope of the utility model claim.

Claims

1. A sputum specimen collection device comprising a sample bottle (1) and a bottle stopper (2) to which a negative pressure tube (3) and an extraction tube (4) are connected, characterized in that: The extraction tube (4) is connected with a saliva separator (5), and the negative pressure tube (3) is provided with a first branch pipe (31) in communication with the saliva separator (5); the saliva separator (5) comprises a connecting sleeve (51), an annular cavity (52) is formed in the barrel of the connecting sleeve (51), the annular cavity (52) is coaxially arranged with the connecting sleeve (51), and a plurality of filter holes (53) in communication with the annular cavity (52) are further formed in the inner wall of the connecting sleeve (51); the outer wall of the connecting sleeve is provided with a second branch pipe (511) in communication with the first branch pipe (31), and the second branch pipe (511) is in communication with the annular cavity (52).

2. A sputum specimen collection device according to claim 1, wherein: The filter holes (53) are inclined, and one end of the filter holes (53) towards the inner wall is lower than the other end towards the annular cavity (52).

3. A sputum specimen collection device according to claim 2, wherein: The filter holes (53) are distributed in the middle and upper portions of the annular cavity (52), and the second branch pipe (511) is in communication with the lower portion of the annular cavity (52).

4. The sputum specimen collection device of claim 1, wherein: The first branch pipe (31) and the second branch pipe (511) are connected with an adjusting valve (6); the adjusting valve (6) comprises a connecting pipe body (61) and a ball valve body (62) rotatably installed in the connecting pipe body (61), the ball valve body (62) is provided with a connecting rod (621) penetrating through the connecting pipe body (61), and the top of the connecting rod (621) is provided with a knob (622).

5. The sputum specimen collection device of claim 1, wherein: The inner bottom of the sample bottle (1) is a concave spherical surface.

6. The sputum specimen collection device of claim 1, wherein: The negative pressure tube (3) and the extraction tube (4) are in plug-in connection with the bottle plug (2); the bottle plug (2) is provided with a plug-in hole (21), and the outer side of the bottle plug (2) is connected with a sealing plug (22) for plugging the plug-in hole (21).

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