Amniotic fluid puncture needle

Abstract

The utility model provides an amniotic fluid puncture needle, and belongs to the technical field of medical instruments. The amniotic fluid puncture needle comprises a puncture assembly and a storage assembly, the puncture assembly comprises a needle head, a connecting tube, a three-way valve, a first shunt tube and a second shunt tube, the connecting tube is connected to the needle head, the storage assembly comprises connectors and a vacuum tube, the first shunt tube and the second shunt tube are both communicated with the connectors, and the vacuum tube is communicated with the first shunt tube and the second shunt tube. By arranging the needle head, the connecting pipe, the three-way valve, the first flow dividing pipe, the second flow dividing pipe, the connector and the vacuum pipe, amniotic fluid in the connecting pipe is divided and guided through the three-way valve, negative pressure suction is conducted in cooperation with the connector and the vacuum pipe, and therefore the first flow dividing pipe and the second flow dividing pipe can be conveniently and alternately used; the extraction continuity is guaranteed, the effect is improved, meanwhile, the manual extraction labor intensity of personnel is relieved, and the risk of the bad pregnancy outcome of the pregnant woman is reduced.

Description

Technical Field

[0001] This application relates to the field of medical devices, and more particularly, to an amniocentesis needle. Background Art

[0002] Amniotic fluid exists in the amniotic cavity. The fertilized egg forms the amniotic cavity on the seventh day of fertilization and begins to produce amniotic fluid. Amniocentesis is a method of prenatal diagnosis, generally suitable for prenatal diagnosis in the second trimester of pregnancy. Under the guidance of ultrasound, the process of inserting a slender needle through the pregnant woman's abdominal wall, uterine wall, and into the amniotic cavity to extract some amniotic fluid is called "amniocentesis".

[0003] Currently, when amniotic fluid reduction is required due to excessive amniotic fluid in the second and third trimesters of pregnancy, amniotic fluid is generally extracted using a syringe. At this time, medical staff operate manually, which is time-consuming, laborious, very tiring and has low work efficiency. At the same time, it increases the risk of adverse pregnancy outcomes for pregnant women. Summary of the Invention

[0004] To overcome the existing deficiencies, an embodiment of this application provides an amniocentesis needle, which can solve the problems that amniotic fluid is generally extracted using a syringe, and at this time, medical staff operate manually, which is time-consuming, laborious, very tiring and has low work efficiency, and at the same time increases the risk of adverse pregnancy outcomes for pregnant women.

[0005] An amniocentesis needle includes a puncture assembly and a storage assembly.

[0006] The puncture assembly includes a needle, a connecting tube, a three-way valve, a first shunt tube, and a second shunt tube. The connecting tube is connected to the needle, the three-way valve is communicatively provided at the other end of the connecting tube, the first shunt tube is communicatively provided at the three-way valve, and the second shunt tube is communicatively provided at the three-way valve.

[0007] The storage assembly includes a connection head and a vacuum tube. The first shunt tube and the second shunt tube are both communicatively provided with the connection head, and the connection head is inserted into one end of the vacuum tube.

[0008] In a specific embodiment, the needle is fixedly sleeved with a handle plate, and the handle plate is arc-shaped.

[0009] In the above implementation process, by setting an arc-shaped handle plate, it is convenient for medical staff to hold the handle plate and operate the needle for puncture.

[0010] In a specific embodiment, one end of the connecting tube is provided with a sleeve, and one end of the needle extends with an insertion tube. The insertion tube and the sleeve are inserted and in interference fit.

[0011] In the above implementation process, by setting the insertion tube and the sleeve tube to be inserted and in interference fit, during use, the insertion tube can be inserted into the sleeve tube and clamped for connection, which is convenient for disassembly and assembly.

[0012] In a specific embodiment, the connecting tube, the first shunt tube, and the second shunt tube are all transparent tubes.

[0013] In the above implementation process, the transparent tube facilitates observing the flow of amniotic fluid.

[0014] In a specific embodiment, the connector includes a circular plate and a plug, and the plug fixedly penetrates through the circular plate and communicates with the shunt tube.

[0015] In the above implementation process, by setting the circular plate and the plug, it is convenient to insert the plug into the vacuum tube, enabling negative pressure aspiration of amniotic fluid.

[0016] In a specific embodiment, the vacuum tube includes a negative pressure tube, a cap, and a rubber stopper. The cap is sleeved on the end of the negative pressure tube, and the rubber stopper is arranged between the negative pressure tube and the cap.

[0017] In a specific embodiment, the cap is provided with a sealing ring, and a sealing rubber is arranged on the edge of the circular plate, and the sealing rubber is adapted to the sealing ring.

[0018] In the above implementation process, by setting the sealing rubber to be adapted to the sealing ring, when the plug is inserted through the rubber stopper, the circular plate and the sealing rubber are squeezed into the sealing ring, further ensuring the sealing of negative pressure aspiration and preventing air leakage.

[0019] In a specific embodiment, the negative pressure tube is a transparent tube, and scale lines are arranged on the surface of the negative pressure tube.

[0020] In the above implementation process, by setting the transparent negative pressure tube and the scale lines, it is convenient to observe and judge the situation of aspirating amniotic fluid.

[0021] The advantages of the embodiments of the present application are as follows: By setting the needle, the connecting tube, the three-way valve, the first shunt tube, the second shunt tube, the connector, and the vacuum tube, the three-way valve is used to divert and guide the amniotic fluid in the connecting tube, and the connector and the vacuum tube are used for negative pressure aspiration, so as to conveniently alternate the use of the first shunt tube and the second shunt tube, ensure the continuity of extraction, improve the effect, and at the same time reduce the manual extraction labor intensity of personnel and reduce the risk of adverse pregnancy outcomes for pregnant women. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic structural diagram of the amniocentesis needle provided by the embodiment of the present application;

[0023] Figure 2Schematic diagram of the needle structure provided by the embodiment of the present application;

[0024] Figure 3 Schematic diagram of the first shunt tube structure provided by the embodiment of the present application;

[0025] Figure 4 Schematic diagram of the vacuum tube structure provided by the embodiment of the present application;

[0026] Figure 5 Schematic diagram of the rubber stopper structure provided by the embodiment of the present application.

[0027] In the figure: 100 - puncture assembly; 110 - needle; 111 - handle plate; 112 - cannula; 120 - connecting tube; 121 - sleeve; 130 - three-way valve; 140 - first shunt tube; 150 - second shunt tube; 200 - storage assembly; 210 - connection head; 211 - circular plate; 2111 - sealing rubber; 212 - plug; 220 - vacuum tube; 221 - negative pressure tube; 222 - cap; 223 - rubber stopper; 224 - sealing ring. Detailed implementation manners

[0028] In order to make the objectives, technical solutions and advantages of the present application clearer and more understandable, the present application will be further described in detail below in conjunction with embodiments.

[0029] It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0030] In the embodiments, unless otherwise specified, the means used are all conventional means in the art.

[0031] Please refer to Figures 1 - 5 , the present application provides an amniocentesis needle including a puncture assembly 100 and a storage assembly 200.

[0032] Please refer to Figure 1 , 2 and 3, the puncture assembly 100 includes a needle 110, a connecting tube 120, a three-way valve 130, a first shunt tube 140 and a second shunt tube 150. The connecting tube 120 is connected to the needle 110, the three-way valve 130 is communicatively disposed at the other end of the connecting tube 120, the first shunt tube 140 is communicatively disposed at the three-way valve 130, and the second shunt tube 150 is communicatively disposed at the three-way valve 130.

[0033] Among them, the needle 110 is fixedly sleeved with a handle plate 111. The handle plate 111 is arc-shaped. By providing the arc-shaped handle plate 111, it is convenient for medical staff to hold the handle plate 111 and operate the needle 110 for puncture.

[0034] Among them, one end of the connecting pipe 120 is provided with a sleeve 121, and one end of the needle 110 is extended with an inserting pipe 112. The inserting pipe 112 and the sleeve 121 are inserted and in interference fit. By setting the inserting pipe 112 and the sleeve 121 to be inserted and in interference fit, during use, the inserting pipe 112 can be inserted into the sleeve 121 and clamped for connection, which is convenient for disassembly and assembly.

[0035] In a specific implementation, the connecting pipe 120, the first shunt pipe 140 and the second shunt pipe 150 are all transparent pipes, and the transparent pipes are convenient for observing the flow of amniotic fluid.

[0036] Please refer to Figure 1 、 3 Figures 4 and 5, the storage component 200 includes a connection head 210 and a vacuum pipe 220. The first shunt pipe 140 and the second shunt pipe 150 are both connected with a connection head 210, and the connection head 210 is inserted into one end of the vacuum pipe 220.

[0037] Among them, the connection head 210 includes a circular plate 211 and a plug 212. The plug 212 is fixedly penetrated through the circular plate 211 and communicates with the shunt pipe. By setting the circular plate 211 and the plug 212, it is convenient to insert the plug 212 into the vacuum pipe 220, so that amniotic fluid can be aspirated under negative pressure.

[0038] In this embodiment, the vacuum pipe 220 includes a negative pressure pipe 221, a cap 222 and a rubber plug 223. The cap 222 is sleeved on the end of the negative pressure pipe 221, the rubber plug 223 is arranged between the negative pressure pipe 221 and the cap 222, the cap 222 is provided with a sealing ring 224, and the edge of the circular plate 211 is provided with a sealing rubber 2111. The sealing rubber 2111 and the sealing ring 224 are adapted to each other. By setting the sealing rubber 2111 and the sealing ring 224 to be adapted to each other, when the plug 212 is inserted through the rubber plug 223, the circular plate 211 and the sealing rubber 2111 are squeezed into the sealing ring 224, which further ensures the sealing of negative pressure aspiration and avoids air leakage.

[0039] It should be noted that the negative pressure pipe 221 is a transparent pipe, and a scale line is arranged on the surface of the negative pressure pipe 221. The negative pressure pipe 221 is a transparent pipe, and a scale line is arranged on the surface of the negative pressure pipe 221.

[0040] The working principle of this amniocentesis needle: When in use, insert the cannula 112 into the sleeve 121 and clamp them together for connection. Medical staff hold the handle plate 111 and operate the needle 110 to puncture. Then insert the plug 212 through the rubber stopper 223 to connect to the vacuum negative pressure tube 221. At the same time, the circular plate 211 and the sealing rubber 2111 are squeezed into the sealing ring 224 to further ensure the airtightness of negative pressure suction and avoid air leakage, so that amniotic fluid is drawn from the needle 110, and then passes through the connecting tube 120, three-way valve 130, first shunt tube 140 and plug 212 in sequence, and finally enters the vacuum negative pressure tube 221. When the extraction of one vacuum negative pressure tube 221 is completed, rotate the three-way valve 130 to connect the connecting tube 120 and the first shunt tube 140, so that the amniotic fluid enters the second shunt tube 150 and then enters another vacuum negative pressure tube 221. At the same time, the vacuum negative pressure tube 221 on the first shunt tube 140 can be detachably replaced, and the alternating use ensures the continuity of extraction, improves the effect, reduces the manual extraction labor intensity of personnel, and reduces the risk of adverse pregnancy outcomes for pregnant women.

[0041] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, rather than limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. And the obvious changes or modifications derived therefrom are still within the protection scope of the present invention.

Claims

1. An amniocentesis needle, characterized in that: include A puncture assembly (100), the puncture assembly (100) comprising a needle (110), a connecting tube (120), a three-way valve (130), a first shunt tube (140) and a second shunt tube (150), the connecting tube (120) being connected to the needle (110), the three-way valve (130) being arranged in communication with the other end of the connecting tube (120), the first shunt tube (140) being arranged in communication with the three-way valve (130), and the second shunt tube (150) being arranged in communication with the three-way valve (130); A storage component (200), the storage component (200) comprising a connector (210) and a vacuum tube (220), the first shunt tube (140) and the second shunt tube (150) are both connected and provided with the connector (210), and the connector (210) is inserted into one end of the vacuum tube (220).

2. An amniocentesis needle according to claim 1, characterized in that: The needle head (110) is fixedly sleeved with a handle plate (111), and the handle plate (111) is arc-shaped.

3. An amniocentesis needle according to claim 1, characterized in that: A sleeve (121) is provided at one end of the connecting tube (120), and a cannula (112) is extended from one end of the needle (110), and the cannula (112) and the sleeve (121) are plugged and interference-fitted.

4. An amniocentesis needle according to claim 1, characterized in that: The connecting tube (120), the first shunt tube (140) and the second shunt tube (150) are all transparent tubes.

5. An amniocentesis needle according to claim 1, characterized in that: The connector (210) comprises a circular plate (211) and a plug (212); the plug (212) is fixedly inserted through the circular plate (211) and is connected to the shunt pipe.

6. An amniocentesis needle according to claim 5, characterized in that: The vacuum tube (220) comprises a negative pressure tube (221), a cover cap (222) and a rubber plug (223); the cover cap (222) is sleeved on the end of the negative pressure tube (221); and the rubber plug (223) is arranged between the negative pressure tube (221) and the cover cap (222).

7. An amniocentesis needle according to claim 6, characterized in that: The cover cap (222) is provided with a sealing ring (224), and the edge of the circular plate (211) is provided with a sealing rubber (2111), and the sealing rubber (2111) and the sealing ring (224) are matched.

8. An amniocentesis needle according to claim 7, characterized in that: The negative pressure tube (221) is a transparent tube, and scale lines are provided on the surface of the negative pressure tube (221).

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