Amniotic fluid sampler

Abstract

The utility model provides an amniotic fluid sampler, including draw tube, seal cover, locating sleeve and connector, draw tube internal bottom is fixedly connected with the connecting sleeve, connecting sleeve internal sliding connection is provided with the second spring between the sliding sleeve and connecting sleeve internal, connector internal middle is provided with the liquid guide cone, the second spring is provided with the second spring between the sliding sleeve and connecting sleeve internal, connector internal middle is provided with the liquid guide cone, and the second spring is provided with the second spring between the sliding sleeve and connecting sleeve internal. A liquid outlet hole is formed in the top end of the liquid guide cone, a first sealing plug is tightly attached to the outer wall of the liquid guide cone, a first spring is arranged between the first sealing plug and the liquid guide cone, the bottom end of the connector is connected with a pricking needle in a penetrating mode, and the outer wall of the pricking needle is sleeved with a positioning sleeve; and after amniotic fluid in the suction pipe is taken out, a second sealing ring is arranged between the connecting sleeve and the sliding sleeve, so that sealing is convenient to realize, the amniotic fluid can be effectively prevented from flowing out, the amniotic fluid can be effectively prevented from being sealed, the amniotic fluid is prevented from being polluted by an external yellow environment, and errors of a measurement result are caused.

Description

Technical Field

[0001] The utility model relates to the technical field of amniotic fluid sampling, in particular to an amniotic fluid sampler. Background Art

[0002] In order to determine the health status of the mother and fetus, obstetrics and gynecology departments generally perform amniotic fluid sampling tests on a regular basis. With the continuous improvement of current medical standards, the production process of amniotic fluid samplers has become increasingly sophisticated, but there are still some shortcomings that need to be improved urgently.

[0003] According to the description of a disclosed amniotic fluid sampler (authorization announcement number: CN208404643U), "an amniotic fluid sampler includes a puncture sampling head, an amniotic fluid observation port is arranged in the middle position of the puncture sampling head, a puncture needle protection cover is arranged below the amniotic fluid observation port, a disposable puncture needle is arranged in the middle position inside the puncture needle protection cover, and lighting lamps are symmetrically arranged on the left and right sides of the inside of the puncture needle protection cover, a disposable sampling needle is arranged above the disposable puncture needle, and a handheld operating handle is arranged on the side of the puncture sampling head away from the amniotic fluid observation port. The utility model replaces the battery with a small storage battery with a solar panel. It is small in size and will not cause difficulty in taking the work of medical staff. It can not only meet the power supply needs of the amniotic fluid sampler, but also use solar panels for light energy charging. It is easy to use and flexible to operate, which reduces the burden on medical staff and saves the hospital's expenditure costs."

[0004] The existing amniotic fluid sampling device cannot seal the amniotic fluid at both ends, which causes the amniotic fluid to flow out from one end of the needle and the other end of the extraction tube and be contaminated, thus affecting the measurement of the amniotic fluid. Therefore, an improved amniotic fluid sampler is needed to solve the above problems. Utility Model Content

[0005] In view of this, the utility model provides an amniotic fluid sampler to solve or alleviate the technical problems existing in the prior art and at least provide a beneficial choice.

[0006] The technical solution of the embodiment of the utility model is achieved as follows: an amniotic fluid sampler, including a suction tube, a sealing cover, a positioning sleeve and a connecting head, the inner bottom end of the suction tube is fixedly connected to the connecting sleeve, the interior of the connecting sleeve is slidably connected to a sliding sleeve, a second spring is arranged between the sliding sleeve and the interior of the connecting sleeve, a liquid guide cone is arranged in the middle of the interior of the connecting head, a liquid outlet hole is opened at the top of the liquid guide cone, a first sealing plug is tightly fitted on the outer wall of the liquid guide cone, a first spring is arranged between the first sealing plug and the liquid guide cone, the bottom end of the connecting head is connected with a puncture needle, and the outer wall of the puncture needle is sleeved with a positioning sleeve.

[0007] Further preferably, a rubber plug is slidably connected to the interior of the suction tube, a pull rod is fixedly connected to the top end of the rubber plug, and a pull plate is fixedly connected to the outer wall of the pull rod.

[0008] Further preferably, the top end of the suction tube is fixedly connected to a sealing cover via a thread, and the middle of the sealing cover is slidably connected to the pull rod.

[0009] Further preferably, a second sealing ring is provided between the connecting sleeve and the sliding sleeve.

[0010] Further preferably, three first sealing rings are sleeved on the outer wall of the sealing plug, and the outer walls of the first sealing rings fit tightly to the interior of the connector.

[0011] Further preferably, the top end of the sealing plug corresponds to the bottom end of the connecting sleeve, and the top end of the liquid guiding cone corresponds to the bottom end of the connecting sleeve.

[0012] Further preferably, the top end of the puncture needle is connected with the middle part and the top end liquid outlet hole of the liquid guide cone.

[0013] The utility model embodiment adopts the above technical solution, which has the following advantages:

[0014] 1. By putting the positioning sleeve on the outer wall of the needle, inserting the tip of the needle into the position after ultrasound positioning, and clamping the positioning sleeve on the belly of the pregnant woman, the needle cannot swing, so as to avoid the medical staff holding the needle and causing slight swing, which may cause harm to the fetus inside the pregnant woman;

[0015] 2. After the amniotic fluid inside is taken out by suction, a second sealing ring is arranged between the connecting sleeve and the sliding sleeve to facilitate sealing. It can effectively prevent the amniotic fluid from flowing out and seal the amniotic fluid, sealing the external yellow environment from contaminating the amniotic fluid and causing errors in the measurement results.

[0016] The above summary is for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the utility model will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1This is the overall structure diagram of the utility model;

[0019] Figure 2 This is a cross-sectional structural diagram of the pumping tube of the utility model;

[0020] Figure 3 This is a cross-sectional schematic diagram of the connector of the utility model;

[0021] Figure 4 It is a schematic diagram of the combination of the sealing plug, the first sealing ring and the first spring of the utility model;

[0022] Figure 5 This is a top view of the connector of the utility model;

[0023] Figure 6 For this utility model Figure 2 A is a partial enlarged schematic diagram.

[0024] Figure numerals: 1. suction tube; 2. sealing cover; 3. pull rod; 4. pull plate; 5. positioning sleeve; 6. puncture needle; 7. rubber plug; 8. liquid guide cone; 9. first spring; 10. sealing plug; 11. first sealing ring; 12. liquid outlet; 13. connecting sleeve; 14. second spring; 15. sliding sleeve; 16. second sealing ring; 17. connecting head. DETAILED DESCRIPTION

[0025] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0026] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0027] Example

[0028] like Figure 1-Figure 6As shown, an embodiment of the utility model provides an amniotic fluid sampler, including a suction tube 1, a sealing cover 2, a positioning sleeve 5 and a connector 17. The inner bottom end of the suction tube 1 is fixedly connected to a connecting sleeve 13, and the inner part of the connecting sleeve 13 is slidably connected to a sliding sleeve 15. A second spring 14 is arranged between the sliding sleeve 15 and the inner part of the connecting sleeve 13. A liquid guide cone 8 is arranged in the middle of the inner part of the connector 17. A liquid outlet 12 is opened at the top of the liquid guide cone 8. The outer wall of the liquid guide cone 8 is tightly fitted with a first sealing plug 10. A first spring 9 is arranged between the first sealing plug 10 and the liquid guide cone 8. The bottom end of the connector 17 is through-connected with a puncture needle 6, and the outer wall of the puncture needle 6 is sleeved with a positioning sleeve 5. By sleeve-fitting the outer wall of the puncture needle 6 with the positioning sleeve 5, and inserting the tip part of the puncture needle 6 into the position after ultrasonic positioning, and clamping the positioning sleeve 5 on the pregnant woman's belly, the puncture needle 6 cannot swing, so as to avoid slight swing when the medical staff holds the puncture needle 6, which may cause harm to the fetus inside the pregnant woman.

[0029] In one embodiment, specifically, the inside of the extraction tube 1 is slidably connected to a rubber plug 7, the top of the rubber plug 7 is fixedly connected to a pull rod 3, and the outer wall of the pull rod 3 is fixedly connected to a pull plate 4. By pulling the pull rod 3 and the pull plate 4 to slide along the middle of the sealing cover 2, the amniotic fluid can be easily extracted.

[0030] In one embodiment, specifically, the top end of the suction tube 1 is fixedly connected to a sealing cover 2 via threads, and the middle of the sealing cover 2 is slidably connected to the pull rod 3 .

[0031] In one embodiment, specifically, a second sealing ring 16 is provided between the connecting sleeve 13 and the sliding sleeve 15. When the suction tube 1 takes out the amniotic fluid inside, a second sealing ring 16 is provided between the connecting sleeve 13 and the sliding sleeve 15 to facilitate sealing.

[0032] In one embodiment, specifically, three first sealing rings 11 are sleeved on the outer wall of the sealing plug 10, and the outer wall of the first sealing ring 11 is tightly fitted to the inside of the connector 17. The first sealing ring 11 on the surface of the sealing plug 10 inside the connector 17 moves upward under the push of the first spring 9 and squeezes the surface of the connector 17, and the inner side of the sealing plug 10 squeezes the liquid outlet 12 opened on the outer side of the liquid guide cone 8, so that the connector 17 and the puncture needle 6 are sealed.

[0033] In one embodiment, specifically, the top end of the sealing plug 10 corresponds to the bottom end of the connecting sleeve 13 , and the top end of the liquid guiding cone 8 corresponds to the bottom end of the connecting sleeve 13 .

[0034] In one embodiment, specifically, the top end of the needle 6 is connected with the middle portion and the top end liquid outlet hole 12 of the liquid guide cone 8 .

[0035] When the utility model is working, the outer wall of the puncture needle 6 is sleeved with the positioning sleeve 5, and the tip part of the puncture needle 6 is inserted into the position after ultrasound positioning, and the positioning sleeve 5 is clamped on the belly of the pregnant woman, so that the puncture needle 6 cannot swing, and the medical staff is prevented from holding the puncture needle 6 and causing slight swing, which may cause harm to the fetus inside the pregnant woman. When the bottom connecting sleeve 13 of the suction tube 1 is inserted into the sealing plug 10 sliding inside the connecting head 17, the sealing plug 10 is pushed to move downward along the connecting head 17, and the liquid guide cone 8 in the middle of the connecting head 17 pushes the sliding sleeve 15 to move upward and squeezes the first spring 9 and the second spring 14. At this time, the middle inner cavity of the puncture needle 6, the inner cavity in the middle of the liquid guide cone 8, and the space between the connecting sleeve 13 and the sliding sleeve 15 are connected, and the pregnant woman is The internal amniotic fluid is introduced into the suction tube 1, and the pull rod 3 and the pull plate 4 are pulled to slide along the middle part of the sealing cover 2 to facilitate the extraction of the amniotic fluid. When the suction tube 1 is pulled out, the first sealing ring 11 on the surface of the sealing plug 10 inside the connecting head 17 moves upward under the push of the first spring 9 and squeezes the surface of the connecting head 17, and the inner side of the sealing plug 10 squeezes the liquid outlet 12 opened on the outside of the liquid guide cone 8, so that the connecting head 17 and the puncture needle 6 are sealed to prevent the amniotic fluid from flowing out. After the suction tube 1 takes out the internal amniotic fluid, a second sealing ring 16 is arranged between the connecting sleeve 13 and the sliding sleeve 15 to facilitate sealing, which can effectively prevent the amniotic fluid from flowing out and seal the amniotic fluid, and seal the external yellow environment from polluting the amniotic fluid, resulting in errors in the measurement results.

[0036] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. An amniotic fluid sampler, comprising a suction tube (1), a sealing cover (2), a positioning sleeve (5) and a connector (17), characterized in that: The bottom end of the suction tube (1) is fixedly connected to a connecting sleeve (13), the inside of the connecting sleeve (13) is slidably connected to a sliding sleeve (15), a second spring (14) is arranged between the sliding sleeve (15) and the inside of the connecting sleeve (13), a liquid guide cone (8) is arranged in the middle of the inside of the connecting head (17), a liquid outlet hole (12) is opened at the top of the liquid guide cone (8), a first sealing plug (10) is tightly fitted on the outer wall of the liquid guide cone (8), a first spring (9) is arranged between the first sealing plug (10) and the liquid guide cone (8), the bottom end of the connecting head (17) is connected to a puncture needle (6), and the outer wall of the puncture needle (6) is sleeved with a positioning sleeve (5).

2. An amniotic fluid sampler according to claim 1, characterized in that: The interior of the suction tube (1) is slidably connected to a rubber plug (7), the top end of the rubber plug (7) is fixedly connected to a pull rod (3), and the outer wall of the pull rod (3) is fixedly connected to a pull plate (4).

3. An amniotic fluid sampler according to claim 1, characterized in that: The top end of the suction tube (1) is fixedly connected to a sealing cover (2) via a thread, and the middle of the sealing cover (2) is slidably connected to a pull rod (3).

4. The amniotic fluid sampler according to claim 1, characterized in that: A second sealing ring (16) is provided between the connecting sleeve (13) and the sliding sleeve (15).

5. The amniotic fluid sampler according to claim 1, characterized in that: Three first sealing rings (11) are sleeved on the outer wall of the sealing plug (10), and the outer wall of the first sealing ring (11) is tightly fitted inside the connector (17).

6. The amniotic fluid sampler according to claim 1, characterized in that: The top end of the sealing plug (10) corresponds to the bottom end of the connecting sleeve (13), and the top end of the liquid guide cone (8) corresponds to the bottom end of the connecting sleeve (13).

7. The amniotic fluid sampler according to claim 1, characterized in that: The top end of the puncture needle (6) is connected to the middle part and the top end liquid outlet hole (12) of the liquid guide cone (8).

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