Sputum suction tube

Abstract

The sputum suction tube comprises a suction tube body, a metering cylinder, a connecting tube and a three-way valve, the suction tube body and the connecting tube are arranged at the upper end and the lower end of the metering cylinder respectively, a partition plate is vertically arranged in the metering cylinder and divides the interior of the metering cylinder into a metering part and a negative pressure part, and guide plates are arranged at the upper end of the partition plate at intervals; the guide plate faces one side of the metering part and inclines downwards, the three-way valve comprises a shell and a valve element, the three-way valve is connected with the connecting pipe, the negative pressure part and the metering part, the valve element is rotatably arranged in the shell, and the connecting pipe can be communicated with the negative pressure part or the metering part by rotating the valve element; the flow distance of sputum can be shortened through the metering cylinder, so that sputum attachment is reduced, and the metering accuracy is improved; through the three-way valve, communication between the connecting pipe and the negative pressure part or the metering part can be changed, normal sputum suction or discharge of sputum in the metering part is achieved, the sputum suction pipe is cleaned, and the sputum in the metering part is prevented from being polluted in the follow-up treatment process of the sputum suction pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of sputum suction devices, in particular to a sputum suction tube. Background Art

[0002] Sputum is the secretion of alveoli, bronchi or trachea. In the process of disease treatment and care, it is of great significance to observe the amount, color, properties and abnormal substances of sputum; therefore, during the process of sputum suction, medical staff usually collect the sucked sputum to intuitively judge the patient's condition.

[0003] A suction tube is usually used when suctioning is performed. The tube is usually connected to a negative pressure device for suction, and the sucked sputum is poured into a measuring cup to measure the data. However, due to the thick sputum and the long length of the suction tube, some sputum will hang in the tube, resulting in inaccurate sputum data measurement.

[0004] Improvements have been made in the prior art. For example, a patent document with authorization announcement number CN 219558214 U discloses a sputum suction tube and a sputum suction device that can measure the amount of sputum. A guide tube for intubation is provided at one end of the metering tube, and a matching tube connected to a negative pressure machine is provided at the other end. A constraint plate and an inclined guide plate are vertically provided in the metering tube. When sputum enters the metering tube, it is guided to one side of the constraint plate by the guide plate. Data is measured by the measuring part, and the other side of the constraint plate is ventilated, thereby shortening the flow distance of the sputum, reducing sputum adhesion, and improving the measurement accuracy without affecting the sputum suction effect.

[0005] However, after the above-mentioned sputum suction device uses the metering part on one side of the metering tube to measure the amount of sputum, it is difficult to clean and discharge the sputum in the metering part on one side of the metering tube, and it is also not convenient to clean the metering tube, which may cause the sputum in the metering tube to cause contamination during subsequent processing. Utility Model Content

[0006] The utility model provides a sputum suction tube, and the technical problem to be solved is that the amount of sputum can be measured at a single time, and the measured sputum can be cleaned and discharged conveniently, and the sputum suction tube can be cleaned to prevent the sputum in the tube from causing pollution.

[0007] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0008] A sputum suction tube comprises a suction tube, a metering cylinder and a connecting tube, wherein the suction tube and the connecting tube are respectively arranged at the upper end and the lower end of the metering cylinder and are through-connected with the inside of the metering cylinder, a partition plate is vertically arranged inside the metering cylinder to divide the inside of the metering cylinder into a metering part and a negative pressure part, a guide plate is arranged at intervals on the upper end of the partition plate, and the guide plate is arranged toward one side of the metering part and tilted downward, and also comprises a three-way valve, wherein the three-way valve comprises a shell and a valve core, and the three connecting ends on the shell are respectively connected with the connecting tube, the negative pressure part and the metering part, the valve core is rotatably arranged in the shell, and a connecting channel is arranged on the valve core, and the connecting tube can be connected with the negative pressure part or the metering part by rotating the valve core.

[0009] As a further improvement of the above technical solution:

[0010] In at least one embodiment, the three-way valve also includes a spring, a polygonal block is provided at one end of the valve core, a slot adapted to the polygonal block is provided at an adjacent end of the shell, and the spring is arranged in the shell, with its two ends respectively abutting against the other end of the valve core and the shell.

[0011] Compared with the prior art, the utility model achieves at least the following beneficial effects: a sputum suction tube in the utility model can shorten the flow distance of sputum through the metering cylinder, thereby reducing sputum adhesion and improving metering accuracy; and through the three-way valve, it can change the connection between the connecting tube and the negative pressure part or the metering part, realize normal sputum suction and discharge of sputum in the metering part, and clean the sputum suction tube to prevent the sputum in the metering part from being contaminated during the subsequent processing of the sputum suction tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0013] Figure 1 It is a structural diagram of an embodiment of the utility model;

[0014] Figure 2 for Figure 1 A cross-sectional view of a metering cylinder and a three-way valve in an embodiment;

[0015] Figure 3 for Figure 1 A cross-sectional view of the three-way valve from another perspective in the embodiment.

[0016] The numbers in the figure are: 1. suction tube; 2. metering cylinder; 3. connecting tube; 4. three-way valve; 11. suction hole; 21. partition plate; 22. metering part; 23. negative pressure part; 24. guide plate; 25. scale line; 31. connector; 41. shell; 42. valve core; 43. spring; 44. handle; 211. anti-overflow plate; 411. slot; 421. connecting channel; 422. polygonal block; 441. pointing end. DETAILED DESCRIPTION

[0017] The present application will be described in detail below with reference to the exemplary embodiments in the accompanying drawings. However, it should be understood that the present application can be implemented in a variety of different forms and should not be construed as being limited to the embodiments described herein. These embodiments are provided here to make the disclosure of the present application more complete and to fully convey the concept of the present application to those skilled in the art.

[0018] In the description of the present application, it should be understood that the terms "center", "lateral", "longitudinal", "front", "back", "left", "right", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the scope of protection of the present application.

[0019] like Figure 1-3 As shown, the sputum suction tube in the present application comprises a suction tube 1, a metering cylinder 2, a connecting tube 3 and a three-way valve 4. The suction tube 1 is used to extend into the patient's pharynx to suck sputum, and the sputum is sucked into the metering cylinder 2 through the suction tube 1. The transparent metering cylinder 2 can measure the amount of sputum and observe the color and properties of the sputum; the connecting tube 3 is arranged at the lower end of the metering cylinder 2, and is used to connect the metering cylinder 2 with the negative pressure bottle in the negative pressure device, and the sputum can be temporarily stored in the metering cylinder 2 through the three-way valve 4, so as to observe the color and properties of the sputum, and measure the amount of the sputum, and can also clean and discharge the sputum in the metering cylinder 2, and clean the metering cylinder 2.

[0020] refer to Figure 1, the suction tube 1 is used to extend into the patient's pharynx to absorb sputum. Among them, the suction tube 1 is arranged at the upper end of the measuring cylinder 2, and is connected to the inside of the measuring cylinder 2. Furthermore, the front end of the suction tube 1 is hemispherical, and is provided with several elliptical suction holes 11. The front end of the suction tube 1 is hemispherical, which can make the front end surface of the suction tube 1 smooth, reduce the irritation to the patient's respiratory tract during the process of sucking sputum, and thus improve the treatment experience; and the elliptical suction hole 11 can reduce the possibility of sputum blockage, avoid pressure reduction, and even make suction impossible, thereby increasing the convenience of use.

[0021] refer to Figure 1 and Figure 2 The measuring cylinder 2 is transparent, and a scale line 25 is provided on one side of the measuring part 22. The transparent measuring cylinder 2 can be used to measure the amount of sputum, and the color, properties, etc. of the sputum can also be directly observed through the measuring cylinder 2. Among them, a partition plate 21 is vertically provided inside the measuring cylinder 2, and the bottom and both sides of the partition plate 21 are sealed and connected to the inner side wall of the measuring cylinder 2, which can separate the inside of the measuring cylinder 2 into a measuring part 22 and a negative pressure part 23. A guide plate 24 is provided at intervals on the upper end of the partition plate 21, and the guide plate 24 is inclined toward one side of the measuring part 22. The guide plate 24 can guide the sputum sucked into the measuring cylinder 2 through the suction tube 1 to the side of the measuring part 22.

[0022] One side of the metering part 22 can be used to temporarily store the sucked sputum and measure the amount of sputum, and the negative pressure part 23 can continuously ventilate to ensure the negative pressure effect. While ensuring the negative pressure effect and not affecting the sputum suction effect, it can also shorten the flow distance of the sputum, thereby reducing the adhesion of the sputum and improving the accuracy of the measurement.

[0023] Furthermore, both sides of the partition plate 21 are sealed to the inner side wall of the metering cylinder 2, and an anti-overflow plate 211 is arranged at intervals on the upper end of the partition plate 21. The anti-overflow plate 211 is arranged to be tilted upward toward the negative pressure part 23, and both sides of the anti-overflow plate 211 are sealed to the inner side wall of the metering cylinder 2. Optionally, the guide plate 24 and the anti-overflow plate 211 are arranged in parallel.

[0024] The anti-overflow plate 211 is tilted upward toward the negative pressure part 23, which can not only increase the blocking height of sputum and reduce the sputum entering the negative pressure part 23 due to shaking, but also the tilted anti-overflow plate 211 can divert the sputum back into the metering part 22, thereby reducing the adhesion of sputum and ensuring the accuracy of sputum metering.

[0025] The connecting tube 3 is used to connect with the negative pressure bottle in the negative pressure device. The connecting tube 3 is arranged at the lower end of the metering cylinder 2 and is connected to the inside of the metering cylinder 2. Further, a connector 31 is arranged at the rear end of the connecting tube 3, and the connector 31 is connected to the connecting tube 3. Optionally, the connector 31 is conical, and one side of the conical large end is connected to the connecting tube 3. Several groups of fixing clamps are arranged at intervals along the length direction of the connector 31. When connected with the negative pressure bottle, multi-stage clamping and fixing can be achieved, thereby avoiding pressure leakage.

[0026] refer to Figure 2 and Figure 3 The three-way valve 4 can be used to control the connection between the connecting tube 3 and the negative pressure part 23 or the metering part 22 in the metering cylinder 2, so that it can be normally used for suctioning sputum, or cleaning and discharging the sputum in the metering part 22. The three-way valve 4 includes a shell 41 and a valve core 42. The three connecting ends on the shell 41 are respectively connected to the connecting tube 3, the negative pressure part 23 and the metering part 22. The valve core 42 is rotatably arranged in the shell 41, and a connecting channel 421 is arranged on the valve core 42. Rotating the valve core 42 can make the connecting tube 3 communicate with the negative pressure part 23 or the metering part 22.

[0027] Furthermore, the three-way valve 4 also includes a spring 43, a polygonal block 422 is provided at one end of the valve core 42, and a groove 411 adapted to the polygonal block 422 is provided at an adjacent end of the shell 41. The spring 43 is arranged in the shell 41, and its two ends are respectively abutted against the other end of the valve core 42 and the shell 41; through the action of the spring 43, the polygonal block 422 can be clamped in the groove 411 to prevent the valve core 42 from rotating unintentionally.

[0028] Furthermore, a handle 44 is fixedly provided at one end of the valve core 42, and the handle 44 extends out of the housing 41. Optionally, a pointing end 441 is provided on the handle 44. The pointing end 441 can mark whether the connecting tube 3 is connected to the negative pressure part 23 or the metering part 22, so that medical staff can make adjustments as needed.

[0029] Medical staff can control the rotation of the valve core 42 through the handle 44, and then adjust it as needed to connect the connecting tube 3 with the negative pressure part 23 for normal suction treatment; or connect the connecting tube 3 with the metering part 22 to clean and discharge the sputum in the metering part 22, and clean the metering part 22 to avoid contamination caused by the outflow of sputum in the metering part 22 during subsequent handling of the suction tube.

[0030] When in use, first adjust the three-way valve 4 so that the connecting tube 3 is connected to the negative pressure part 23, and is connected to the negative pressure device through the connecting tube 3, and the metering cylinder 2 is kept in a vertical state by using auxiliary devices such as an infusion rod. After turning on the negative pressure device, the suction tube 1 is inserted into the patient's respiratory tract. The sputum can be sucked into the metering cylinder 2 through the sputum suction hole 11 on the suction tube 1, and under the guidance of the guide plate 24, the sputum flows into and is temporarily stored in the metering part 22. The negative pressure part 23 can continuously circulate negative pressure airflow, so that sputum suction can be carried out continuously.

[0031] After the sputum suction is completed, the medical staff can measure the amount of sputum temporarily stored in the metering part 22 through the transparent metering cylinder 2 and the scale line 25 set on the metering cylinder 2, and observe the color and properties of the sputum. Finally, the three-way valve 4 is adjusted to connect the connecting tube 3 with the metering part 22, so that the sputum in the metering part 22 can be cleaned and discharged into the sputum suction bottle in the negative pressure device, and the suction tube 1 is used to suck physiological saline, so that the suction tube 1, the metering part 22 and the connecting tube 3 can be cleaned, so as to prevent the sputum in the metering part 22 from flowing out and causing contamination during the subsequent treatment of the sputum suction tube, or the rinsed sputum suction tube can be placed next to the patient's bed for next use.

[0032] It should be understood that all the above embodiments are illustrative rather than restrictive, and various modifications or variations made by those skilled in the art to the specific embodiments described above under the concept of the present utility model should be within the protection scope of the present utility model.

Claims

1. A sputum suction tube, comprising a suction tube (1), a metering cylinder (2) and a connecting tube (3), wherein the suction tube (1) and the connecting tube (3) are respectively arranged at the upper end and the lower end of the metering cylinder (2), and are connected to the inside of the metering cylinder (2); a partition plate (21) is vertically arranged inside the metering cylinder (2) to divide the inside of the metering cylinder (2) into a metering part (22) and a negative pressure part (23); a guide plate (24) is arranged at intervals at the upper end of the partition plate (21); the guide plate (24) is arranged to face the side of the metering part (22) and to be inclined downward, and is characterized in that: The invention also comprises a three-way valve (4), the three-way valve (4) comprising a shell (41) and a valve core (42), the three connection ends on the shell (41) being respectively connected to the connecting pipe (3), the negative pressure part (23) and the metering part (22), the valve core (42) being rotatably arranged in the shell (41), and a connecting channel (421) being arranged on the valve core (42), and the connecting pipe (3) can be connected to the negative pressure part (23) or the metering part (22) by rotating the valve core (42).

2. The sputum suction tube according to claim 1, characterized in that: The three-way valve (4) further comprises a spring (43); a polygonal block (422) is provided at one end of the valve core (42); a slot (411) adapted to the polygonal block (422) is provided at an adjacent end of the housing (41); the spring (43) is arranged in the housing (41), and its two ends are respectively in contact with the other end of the valve core (42) and the housing (41).

3. The sputum suction tube according to claim 1 or 2, characterized in that: A handle (44) is fixedly provided at one end of the valve core (42), and the handle (44) extends out of the outer side of the housing (41).

4. The sputum suction tube according to claim 3, characterized in that: The handle (44) is provided with a pointing end (441).

5. The sputum suction tube according to claim 1, characterized in that: An anti-overflow plate (211) is arranged at an interval on the upper end of the partition plate (21), and the anti-overflow plate (211) is arranged toward one side of the negative pressure portion (23) and is inclined upward.

6. The sputum suction tube according to claim 5, characterized in that: The guide plate (24) and the anti-overflow plate (211) are arranged in parallel.

7. The sputum suction tube according to claim 1, characterized in that: The measuring cylinder (2) is transparent and has a scale line (25) disposed on one side of the measuring portion (22).

8. The sputum suction tube according to claim 1, characterized in that: The front end of the suction tube (1) is hemispherical and is provided with a plurality of elliptical sputum suction holes (11).

9. The sputum suction tube according to claim 1, characterized in that: The rear end of the connecting pipe (3) is provided with a connecting head (31).

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