Disposable automatic amniotic fluid suction device

Abstract

The utility model relates to the technical field of antenatal diagnosis medicine, and particularly discloses a disposable automatic amniotic fluid suction device which comprises an amniotic fluid collecting pipe, the upper end face of the amniotic fluid collecting pipe is in threaded connection with a sealing cover, and a negative pressure suction device with a pipeline installed in an installation hole is installed on the upper end face of the sealing cover. A flow guide pipe is installed on the upper end face of the sealing cover in a penetrating mode, a connecting thin pipe extending to the outside of the sealing cover is installed in the flow guide pipe, a liquid outlet is formed in the middle of the lower end face of an amniotic fluid collecting pipe in a penetrating mode, a sealing piston is inserted into the liquid outlet, and amniotic fluid is sucked into the amniotic fluid collecting pipe through a negative pressure suction device to be collected. According to the amniotic fluid collecting pipe, manual suction is avoided, amniotic fluid in the amniotic fluid collecting pipe can be discharged from the fluid outlet by opening the sealing piston, then the collected amniotic fluid can be conveniently discharged, the amniotic fluid collecting pipe can be vertically placed in the using process by connecting the placing support to the upper end face of the limiting ring in a lap joint mode, and the extraction amount of the amniotic fluid can be accurately checked.

Description

Technical Field

[0001] The utility model relates to the technical field of prenatal diagnosis medicine, in particular to a disposable automatic amniotic fluid suction device. Background Art

[0002] Amniocentesis is currently the most commonly used prenatal diagnostic technique in fetal medicine centers and prenatal diagnosis institutions around the world. For pregnant women who need amniocentesis prenatal diagnosis, the doctor uses an amniocentesis needle under the guidance of B-ultrasound to penetrate the pregnant woman's abdominal wall, uterine wall and amniotic membrane into the amniotic cavity, extract amniotic fluid for testing, and perform prenatal diagnosis of the fetus or evaluate the fetal organ function.

[0003] During amniocentesis, the doctor needs to manually draw out 25-50ml of amniotic fluid, using a 10ml syringe 3-5 times. Every day of surgery, the doctor needs to puncture about 30 pregnant women and draw out 90-150 times. Each time the doctor draws out, he or she needs to use force, so every doctor feels pain in his or her fingers.

[0004] At present, it is inconvenient to discharge the collected amniotic fluid during the process of extracting amniotic fluid. At the same time, during the process of extracting amniotic fluid, medical staff are required to hold the amniotic fluid collection tube all the time. Because the amniotic fluid collection tube is placed at an angle, the extraction amount cannot be accurately checked at any time. Therefore, it is necessary to propose a disposable automatic amniotic fluid extraction device to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a disposable automatic amniotic fluid suction device, which has the characteristics of being convenient for discharging the collected amniotic fluid and enabling the amniotic fluid collection tube to be placed vertically during use so as to accurately check the amount of amniotic fluid extracted.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a disposable automatic amniotic fluid suction device, comprising an amniotic fluid collecting tube, the outer wall of the amniotic fluid collecting tube is provided with a scale, the upper end face of the amniotic fluid collecting tube is threadedly connected with a sealing cover, the upper end face of the sealing cover is provided with a mounting hole, the upper end face of the sealing cover is provided with a negative pressure aspirator whose pipeline is installed inside the mounting hole, the upper end face of the sealing cover is penetrated with a guide tube, the inside of the guide tube is provided with a connecting thin tube extending to the outside of the sealing cover, the middle part of the lower end face of the amniotic fluid collecting tube is penetrated with a liquid outlet, the inside of the liquid outlet is plugged with a sealing piston, and the lower end face of the amniotic fluid collecting tube is fixedly connected with a connecting belt fixedly connected to the outer wall of the sealing piston;

[0007] The lower end surface of the outer wall of the amniotic fluid collecting tube is fixedly connected with a limiting ring, the upper end surface of the limiting ring is provided with a rubber groove, the upper end surface of the limiting ring is overlapped with a placing tray, and the top end of the inner wall of the placing tray is fixedly connected with a rubber convex ring matching the rubber groove.

[0008] In order to protect the end of the connecting capillary tube, as a preferred disposable automatic amniotic fluid suction device of the present invention, a winding shaft is fixedly connected to the right side of the amniotic fluid collecting tube, and a protective sleeve is fixedly connected to the right side of the winding shaft.

[0009] In order to quickly guide the attracted amniotic fluid, as a preferred embodiment of the disposable automatic amniotic fluid suction device of the present invention, the lower end surface of the guide tube is trumpet-shaped.

[0010] In order to hang the connecting belt, as a preferred embodiment of the disposable automatic amniotic fluid suction device of the present invention, the lower end surface of the amniotic fluid collecting tube is fixedly connected with a hook.

[0011] In order to avoid blocking the opening of the sealing piston, as a preferred embodiment of the disposable automatic amniotic fluid suction device of the present invention, an opening is formed through the lower end surface of the placement tray.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] The utility model firstly uses a negative pressure aspirator to draw the amniotic fluid into the amniotic fluid collecting tube for collection, thus avoiding manual suction, and by opening the sealing piston, the amniotic fluid in the amniotic fluid collecting tube can be discharged from the liquid outlet, thereby facilitating the discharge of the collected amniotic fluid;

[0014] Secondly, by overlapping the placement support on the upper end surface of the limiting ring, the amniotic fluid collecting tube can be placed vertically during use, and the amount of amniotic fluid extracted can be accurately checked, avoiding continuous holding by medical staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is the overall structure diagram of the utility model;

[0016] Figure 2 For the utility model Figure 1 A magnified image of point A;

[0017] Figure 3 This is a structural diagram of a limit ring of the utility model;

[0018] Figure 4 For the utility model Figure 1 A magnified view of point B;

[0019] Figure 5 It is a three-dimensional structural diagram of the winding shaft of the utility model.

[0020] In the figure: 1. amniotic fluid collecting tube; 101. sealing cover; 102. mounting hole; 103. negative pressure aspirator; 104. guide tube; 105. connecting capillary; 2. sealing piston; 201. liquid outlet; 202. connecting belt; 203. hook; 3. placement tray; 301. limiting ring; 302. rubber groove; 303. rubber convex ring; 304. opening; 4. winding shaft; 401. protective cover. DETAILED DESCRIPTION

[0021] See also Figures 1 to 5 A disposable automatic amniotic fluid suction device comprises an amniotic fluid collecting tube 1, the outer wall of which is provided with a scale, the upper end surface of the amniotic fluid collecting tube 1 is threadedly connected with a sealing cover 101, the upper end surface of the sealing cover 101 is provided with a mounting hole 102, the upper end surface of the sealing cover 101 is provided with a negative pressure aspirator 103 whose pipeline is installed inside the mounting hole 102, the upper end surface of the sealing cover 101 is penetrated with a guide tube 104, the inside of the guide tube 104 is provided with a connecting thin tube 105 extending to the outside of the sealing cover 101, the middle part of the lower end surface of the amniotic fluid collecting tube 1 is penetrated with a liquid outlet 201, the inside of the liquid outlet 201 is plugged with a sealing piston 2, and the lower end surface of the amniotic fluid collecting tube 1 is fixedly connected with a connecting belt 202 fixedly connected to the outer wall of the sealing piston 2;

[0022] The lower end face of the outer wall of the amniotic fluid collecting tube 1 is fixedly connected with a limiting ring 301, the upper end face of the limiting ring 301 is provided with a rubber groove 302, the upper end face of the limiting ring 301 is overlapped with a placing tray 3, and the top end of the inner wall of the placing tray 3 is fixedly connected with a rubber convex ring 303 matching the rubber groove 302.

[0023] In this embodiment: by installing the negative pressure aspirator 103 on the sealing cover 101, and inserting one end of the connecting thin tube 105 into the guide tube 104, and connecting the other end to the amniocentesis needle, the amniotic fluid can be sucked into the amniotic fluid collecting tube 1 by the negative pressure aspirator 103, thereby avoiding manual suction, and by opening the sealing piston 2, the amniotic fluid in the amniotic fluid collecting tube 1 can be discharged from the liquid outlet 201, thereby facilitating the discharge of the collected amniotic fluid;

[0024] Secondly, by overlapping the placement tray 3 on the upper end surface of the limiting ring 301 and pressing the placement tray 3 downward, the rubber convex ring 303 enters the rubber groove 302, and then the placement tray 3 can be limited, so that the amniotic fluid collecting tube 1 can be placed vertically during use, and the amount of amniotic fluid extraction can be accurately checked to avoid medical staff holding it continuously.

[0025] As a technical optimization solution of the present utility model, the right side of the amniotic fluid collecting tube 1 is fixedly connected to a winding shaft 4 , and the right side of the winding shaft 4 is fixedly connected to a protective sleeve 401 .

[0026] In this embodiment: the connecting tube 105 can be wound on the groove of the outer wall of the winding shaft 4 to prevent the connecting tube 105 from being entangled, and the end of the connecting tube 105 is inserted into the protective sleeve 401 to prevent bacteria or dust from contacting the end of the connecting tube 105.

[0027] As a technical optimization solution of the present invention, the lower end surface of the flow guide tube 104 is trumpet-shaped.

[0028] In this embodiment, the lower end surface of the guide tube 104 is in a trumpet shape, so that the amniotic fluid sucked in the connecting capillary 105 can be quickly guided into the amniotic fluid collecting tube 1.

[0029] As a technical optimization solution of the utility model, a hook 203 is fixedly connected to the lower end surface of the amniotic fluid collecting tube 1 .

[0030] In this embodiment: the hook 203 is used to hang the connecting belt 202, limit the sealing piston 2, and prevent the connecting belt 202 and the sealing piston 2 from affecting the vertical outflow of amniotic fluid.

[0031] As a technical optimization solution of the present invention, an opening 304 is formed through the lower end surface of the placement tray 3 .

[0032] In this embodiment: the opening 304 is used to avoid blocking the opening of the sealing piston 2 and affecting the discharge of the amniotic fluid collected in the amniotic fluid collecting tube 1 .

[0033] Working principle: firstly, by installing the negative pressure suction device 103 on the sealing cover 101, and inserting one end of the connecting thin tube 105 into the guide tube 104, and connecting the other end to the amniocentesis needle, the amniotic fluid can be sucked into the amniotic fluid collecting tube 1 by the negative pressure suction device 103, and the amniotic fluid collecting tube 1 can hold up to 60 ml of amniotic fluid to avoid manual suction, and by opening the sealing piston 2, the amniotic fluid in the amniotic fluid collecting tube 1 can be discharged from the liquid outlet 201, so that the collected amniotic fluid can be discharged easily;

[0034] Secondly, by overlapping the placement tray 3 on the upper end surface of the limiting ring 301 and pressing the placement tray 3 downward, the rubber convex ring 303 enters the rubber groove 302, and then the placement tray 3 can be limited, so that the amniotic fluid collecting tube 1 can be placed vertically during use, and the amount of amniotic fluid extraction can be accurately checked to avoid medical staff holding it continuously.

[0035] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A disposable automatic amniotic fluid suction device, comprising an amniotic fluid collecting tube (1), the outer wall of the amniotic fluid collecting tube (1) being provided with a scale, the upper end surface of the amniotic fluid collecting tube (1) being threadedly connected with a sealing cover (101), the upper end surface of the sealing cover (101) being provided with a mounting hole (102), the upper end surface of the sealing cover (101) being provided with a negative pressure aspirator (103) whose pipeline is mounted inside the mounting hole (102), characterized in that: The upper end surface of the sealing cover (101) is penetrated by a flow guide tube (104), the interior of the flow guide tube (104) is installed with a connecting thin tube (105) extending to the outside of the sealing cover (101), the middle part of the lower end surface of the amniotic fluid collecting tube (1) is penetrated by a liquid outlet (201), the interior of the liquid outlet (201) is plugged with a sealing piston (2), and the lower end surface of the amniotic fluid collecting tube (1) is fixedly connected to a connecting belt (202) fixedly connected to the outer wall of the sealing piston (2); The lower end surface of the outer wall of the amniotic fluid collecting tube (1) is fixedly connected to a limiting ring (301), the upper end surface of the limiting ring (301) is provided with a rubber groove (302), the upper end surface of the limiting ring (301) is overlapped with a placement tray (3), and the top end of the inner wall of the placement tray (3) is fixedly connected to a rubber convex ring (303) matching the rubber groove (302).

2. The disposable automatic amniotic fluid suction device according to claim 1, characterized in that: The right side of the amniotic fluid collecting tube (1) is fixedly connected to a winding shaft (4), and the right side of the winding shaft (4) is fixedly connected to a protective sleeve (401).

3. The disposable automatic amniotic fluid suction device according to claim 1, characterized in that: The lower end surface of the flow guide tube (104) is trumpet-shaped.

4. The disposable automatic amniotic fluid suction device according to claim 1, characterized in that: A hook (203) is fixedly connected to the lower end surface of the amniotic fluid collecting tube (1).

5. The disposable automatic amniotic fluid suction device according to claim 1, characterized in that: An opening (304) is formed through the lower end surface of the placement tray (3).

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