Amniotic fluid puncture needle
By designing an amniotic fluid puncture needle with a scale table, positioning button and U-shaped tube, the problems of doctor fatigue and insufficient fetal protection during amniotic fluid puncture in the prior art are solved, and more efficient and safer amniotic fluid puncture operation is achieved. .
Patent Information
- Application Number
- CN202420598243.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-26
- Publication Date
- 2025-02-21
- Estimated Expiration
- 2034-03-26
AI Technical Summary
The existing amniotic fluid puncture needles can easily cause doctors to fatigue during the amniotic fluid extraction process, and the position of the puncture needles is easily changed, which may cause fetal injuries and is difficult to effectively protect the fetus.
An amniotic fluid puncture needle is designed including a needle sleeve, a built-in tube, a scale gauge, a built-in needle, a jacket, a positioning button and a U-shaped tube. The depth of the needle can be adjusted with a scale gauge and positioning buttons of the built-in tube, while the U-tube on the outer sleeve facilitates operation and provides additional protection.
This design improves the comfort and accuracy of the operation by reducing the difficulty and labor intensity of the doctor, while providing better fetal protection, avoiding the potential risks caused by changes in the position of the puncture needle.
Smart Images
Figure CN222510408U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of amniocentesis, in particular 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 after fertilization and begins to produce amniotic fluid. Amniocentesis is a method of prenatal diagnosis, generally suitable for prenatal diagnosis in mid-pregnancy. Under the guidance of ultrasound, a thin needle is passed through the pregnant woman's belly, uterine wall, into the amniotic cavity, and the process of extracting some amniotic fluid is called "amniocentesis".
[0003] The existing puncture needle is a 15-centimeter straight needle with a syringe connected to the tail of the needle. The doctor needs to raise his hand to draw amniotic fluid, which can easily cause fatigue. As the force of drawing amniotic fluid increases, the position of the puncture needle is easily changed. The needle may either fall out and fail to draw amniotic fluid, or be pushed inside and may injure the fetus. Therefore, it is necessary to design an amniocentesis needle that protects the fetus. Utility Model Content
[0004] The purpose of the utility model is to provide an amniocentesis needle to solve the problems raised in the above-mentioned background technology.
[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: an amniocentesis needle, comprising a needle sleeve;
[0006] An internal tube is provided inside the needle sleeve.
[0007] A scale, the scale being arranged on the outer surface of the built-in tube;
[0008] An internal needle, the internal needle being arranged inside the internal tube;
[0009] An outer sleeve, the outer sleeve being arranged above the inner tube;
[0010] A U-shaped tube is fixedly connected to the outside of the outer sleeve.
[0011] According to the above technical solution, a positioning button is slidably connected to the outside of the built-in tube.
[0012] According to the above technical solution, the inner diameter of the built-in tube is 0.6-1 mm.
[0013] According to the above technical solution, a water outlet is provided at the other end of the U-shaped tube, and a nut is rotatably connected to the outside of the water outlet;
[0014] According to the above technical solution, the length of the U-shaped tube is 10-12 cm, and the diameter of the U-shaped tube is 0.6-0.8 cm.
[0015] Compared with the prior art, the beneficial effects achieved by the utility model are as follows: the utility model can adjust the depth from the skin of different parturient women to the amniotic fluid pool by moving the positioning button on the internal tube, and adds a U-shaped tube to the external tube, which is convenient for the operator, saves time and effort, and provides a layer of protection for the fetus. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:
[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0018] Figure 2 It is a schematic diagram of the overall cross-sectional structure of the utility model;
[0019] In the figure: 1. needle sleeve; 2. internal tube; 21. scale; 3. outer sleeve; 4. positioning button; 5. internal needle; 6. U-shaped tube; 7. nut. DETAILED DESCRIPTION
[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0021] See also Figure 1-2 The utility model provides a technical solution: an amniocentesis needle, comprising a needle sleeve 1, wherein an internal tube 2 is provided inside the needle sleeve 1;
[0022] The inner diameter of the built-in tube 2 is 0.6-1mm, and a built-in needle 5 is arranged inside the built-in tube 2. A connection cover is fixedly connected to the top of the built-in needle 5. An outer sleeve 3 is arranged above the built-in tube 2. The built-in tube 2 and the outer sleeve 3 are a conjoined structure. A positioning button 4 is arranged below the outer sleeve 3. The positioning button 4 is slidably connected to the outside of the built-in tube 2. A scale 21 is arranged on the outer surface of the built-in tube 2. The scale value of the scale 21 is 1-15cm. The positioning button 4 moves on the scale 21.
[0023] The outer part of the outer sleeve 3 is fixedly connected with a U-shaped tube 6, the length of the U-shaped tube 6 is 10-12 cm, the diameter of the U-shaped tube 6 is 0.6-0.8 cm, and the other end of the U-shaped tube 6 is provided with a water outlet, the outside of the water outlet is rotatably connected with a nut 7, and the water outlet is used to connect a syringe.
[0024] Working principle:
[0025] The medical staff removes the needle sleeve 1, so that the internal needle 5 is inserted into the amniotic fluid of the parturient through the internal tube 2, and then measures the optimal depth from the parturient's skin to the amniotic fluid pool through B-ultrasound, and uses the positioning button 4 to move on the scale 21 to the optimal depth from the parturient's skin to the amniotic fluid pool. Then, the internal needle 5 is pulled out from the inside of the internal tube 2 through the connecting cover, so that the internal tube 2 remains in the amniotic fluid pool, and the nut 7 is turned down and installed on the top of the outer sleeve 3. The nut 7 serves to seal the outer sleeve 3. The amniotic fluid flows to the water outlet through the U-shaped tube 6. The syringe is connected at the water outlet to extract the amniotic fluid. The doctor does not need to raise his arm to work, which improves the doctor's comfort while working.
[0026] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.
[0027] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. An amniocentesis needle, characterized in that: include: Needle tube cover (1); An internal tube (2), the internal tube (2) being arranged inside the needle sleeve (1); A scale (21), wherein the scale (21) is arranged on the outer surface of the built-in tube (2); An internal needle (5), the internal needle (5) being arranged inside the internal tube (2); An outer sleeve (3), the outer sleeve (3) being arranged above the inner tube (2); A U-shaped tube (6), wherein the U-shaped tube (6) is fixedly connected to the outside of the outer sleeve (3); The exterior of the internal tube (2) is slidably connected to a positioning button (4); the positioning button (4) is used to fix the position of the internal tube (2) in the amniotic fluid; The other end of the U-shaped tube (6) is provided with a water outlet, and a nut (7) is rotatably connected to the outside of the water outlet, and the nut (7) serves to seal the outer sleeve (3).
2. An amniocentesis needle according to claim 1, characterized in that: The inner diameter of the inner tube (2) is 0.6-1 mm.
3. An amniocentesis needle according to claim 2, characterized in that: The length of the U-shaped tube (6) is 10-12 cm, and the diameter of the U-shaped tube (6) is 0.6-0.8 cm.