Visual amniotic fluid puncture outfit
By designing a visual amniocentesis device, combined with an ultra-fine endoscope and a beveled puncture needle, the problem of needle tip wobbling during amniocentesis in existing equipment has been solved, achieving a more efficient and safer amniotic fluid extraction process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEFEI DVL ELECTRON CO LTD
- Filing Date
- 2025-01-14
- Publication Date
- 2026-05-12
AI Technical Summary
Existing amniocentesis equipment is prone to shaking during amniocentesis, which can cause damage to the fetus and maternal tissues. Furthermore, it is difficult to accurately determine the needle position and puncture depth, affecting the efficiency of the procedure.
Design a visual amniocentesis device that combines an ultra-fine endoscope and puncture components. Utilize high-definition real-time images to guide the puncture operation, and ensure accurate needle placement and safety through a beveled puncture needle tube and sealing ring design.
It significantly reduces the risk of accidental injury to the fetus and maternal tissues, improves the accuracy and efficiency of amniocentesis, and reduces tissue damage.
Smart Images

Figure CN224220203U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical device technology, and in particular to a visual amniocentesis device. Background Technology
[0002] Amniocentesis is a common prenatal diagnostic procedure used to detect chromosomal abnormalities or other genetic diseases in the fetus. This process involves a doctor, under ultrasound guidance, extracting a small sample of amniotic fluid from the amniotic cavity within the pregnant woman's uterus for laboratory analysis and prenatal diagnosis. Although this technology is very mature, certain risks and challenges still exist.
[0003] Currently, most amniocentesis devices use a syringe that connects directly to the tip of the needle. After a successful puncture, the operator, guided by ultrasound, must hold the needle in place while continuously drawing amniotic fluid under negative pressure. Although modern amniocentesis is usually performed under ultrasound guidance, not all devices are designed to be compatible with ultrasound equipment. Furthermore, because two tubes of amniotic fluid are required, changing syringes during amniotic fluid extraction can cause the needle tip to wobble, potentially damaging the fetus and maternal tissues; therefore, there is room for improvement. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a visual amniocentesis device. Its advantages include allowing doctors to perform the puncture procedure directly, significantly reducing the risk of accidental injury to the fetus and maternal tissues, enabling more accurate determination of the needle position and puncture depth, and improving the efficiency of amniocentesis.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A visual amniocentesis device includes an ultra-fine endoscope and a puncture component. The puncture component includes a T-shaped drainage tube with drainage connection ports on both sides, which are controlled by flow valves. A puncture needle is located at the bottom of the T-shaped drainage tube, and the top of the T-shaped drainage tube is connected to the ultra-fine endoscope via a fastener. An ultra-fine endoscope lens is located at the bottom of the ultra-fine endoscope and is inserted into the puncture needle.
[0007] Using the above technical solution: During use, the doctor will first select the optimal puncture point under ultrasound guidance, and then insert the puncture needle vertically into the selected location. With the help of high-definition real-time images provided by the ultra-fine endoscope lens, the doctor can accurately determine the puncture location and depth to ensure safe access to the amniotic cavity. Once the location is confirmed to be correct, the doctor can open the flow valve to collect an appropriate amount of amniotic fluid as needed. The doctor can perform the puncture operation intuitively, significantly reducing the risk of accidental injury to the fetus and maternal tissues, and can more accurately determine the position of the needle and the puncture depth, thus improving the efficiency of amniocentesis.
[0008] The present invention is further configured such that the bottom of the puncture needle tube has a sloping structure.
[0009] The above technical solution, with its sloping bottom design, reduces damage to tissues while maintaining good penetration.
[0010] The present invention is further configured such that the connecting fastener includes a rotating sleeve, the inner wall of the rotating sleeve is provided with an internal thread, the top of the T-shaped drainage tube and the bottom of the ultra-fine endoscope are both provided with external threads, and the internal thread and the external thread are adapted to each other.
[0011] Through the above technical solutions, the rotating sleeve can be set up with a rotation lock to ensure a stable connection between the ultra-thin endoscope and the puncture component, preventing loosening or falling off.
[0012] The present invention is further provided with a sealing ring at the connection between the ultra-thin endoscope and the puncture component.
[0013] The above technical solution involves setting a sealing ring to seal the gap between the ultra-fine endoscope and the puncture component, effectively preventing liquid leakage and maintaining a sterile environment.
[0014] The present invention is further configured such that the sealing ring is made of rubber.
[0015] Through the above technical solutions, the rubber sealing ring has good corrosion resistance, which helps to improve the service life of the sealing ring.
[0016] The present invention is further provided that the outer wall of the rotating sleeve is provided with anti-slip texture, and the anti-slip texture is integrally formed with the rotating sleeve.
[0017] Through the above technical solutions, the anti-slip texture can achieve a good anti-slip effect and prevent slippage during rotation.
[0018] The present invention is further configured such that a wireless signal transmitter is provided inside the ultra-thin endoscope, and the ultra-thin endoscope is connected to a display via a wireless signal.
[0019] Through the above technical solutions, the ultra-thin endoscope can conveniently transmit the image signal recognized by the lens to the display via a wireless signal transmitter, thus providing real-time image feedback.
[0020] The beneficial effects of this invention are as follows: When in use, the doctor will first select the best puncture point under the guidance of ultrasound, and then insert the puncture needle vertically into the selected position. With the help of the high-definition real-time image provided by the ultra-fine endoscope lens, the doctor can accurately determine the puncture position and depth to ensure safe access to the amniotic cavity. Once the position is confirmed to be correct, the doctor can open the flow valve to collect an appropriate amount of amniotic fluid as needed. The doctor can perform the puncture operation intuitively, which significantly reduces the risk of accidentally injuring the fetus and maternal tissues, and can more accurately determine the position of the needle and the puncture depth, thus improving the efficiency of amniocentesis. Attached Figure Description
[0021] Figure 1 This is a three-dimensional structural diagram of a visual amniocentesis device proposed in this utility model;
[0022] Figure 2 for Figure 1 Enlarged structural diagram at point A;
[0023] Figure 3 This is a schematic diagram of the exploded structure of a visual amniocentesis device proposed in this utility model.
[0024] In the image: 1. Ultra-thin endoscope; 2. Puncture needle; 3. Connecting fastener; 4. T-shaped drainage tube; 5. Flow valve; 6. Drainage connection port; 7. Ultra-thin endoscope lens. Detailed Implementation
[0025] The technical solution of this patent will be further described in detail below with reference to specific embodiments.
[0026] The embodiments of this patent are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this patent, and should not be construed as limiting this patent.
[0027] Reference Figure 1-3 A visual amniocentesis device includes an ultra-thin endoscope 1 and a puncture component. The puncture component includes a T-shaped drainage tube 4, with drainage connection ports 6 on both sides of the T-shaped drainage tube 4. The drainage connection ports 6 are controlled by a flow valve 5. A puncture needle tube 2 is provided at the bottom of the T-shaped drainage tube 4. The top of the T-shaped drainage tube 4 is connected to the ultra-thin endoscope 1 through a connecting fastener 3. An ultra-thin endoscope lens 7 is provided at the bottom of the ultra-thin endoscope 1 and is inserted into the puncture needle tube 2.
[0028] In this embodiment, the bottom of the puncture needle 2 has a beveled structure. The puncture needle 2 with a beveled bottom structure can reduce damage to the tissue while maintaining good penetration.
[0029] The fastener 3 includes a rotating sleeve with an internal thread on its inner wall. The top of the T-shaped drainage tube 4 and the bottom of the ultra-fine endoscope 1 are both provided with external threads. The internal threads and external threads are matched. The rotating sleeve can be rotated to lock, ensuring a stable connection between the ultra-fine endoscope 1 and the puncture component and preventing loosening or falling off.
[0030] Furthermore, a sealing ring is provided at the connection between the ultra-thin endoscope 1 and the puncture component. The sealing ring can seal the gap between the ultra-thin endoscope 1 and the puncture component, effectively preventing liquid leakage and maintaining a sterile environment. The sealing ring is made of rubber, which has good corrosion resistance and helps to improve the service life of the sealing ring.
[0031] The outer wall of the rotating sleeve is provided with anti-slip texture, which is integrally formed with the rotating sleeve. The anti-slip texture can play a good anti-slip role and prevent slippage during rotation.
[0032] It is worth mentioning that the ultra-thin endoscope 1 is equipped with a wireless signal transmitter. The ultra-thin endoscope 1 is connected to a display via a wireless signal. The ultra-thin endoscope 1 can easily transmit the image signal recognized by the lens to the display via the wireless signal transmitter for display, which facilitates the provision of real-time image feedback.
[0033] Working principle: During use, the doctor will first select the best puncture point under the guidance of ultrasound, and then insert the puncture needle 2 vertically into the selected position. With the help of the high-definition real-time image provided by the ultra-fine endoscope lens 7, the doctor can accurately determine the puncture position and depth to ensure safe access to the amniotic cavity. Once the position is confirmed to be correct, the doctor can open the flow valve 5 to collect an appropriate amount of amniotic fluid as needed. The doctor can perform the puncture operation intuitively, which significantly reduces the risk of accidentally injuring the fetus and maternal tissues, and can more accurately determine the position of the needle and the puncture depth, thus improving the efficiency of amniocentesis.
[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A visual amniocentesis device, comprising an ultra-fine endoscope (1) and a puncture component, characterized in that, The puncture component includes a T-shaped drainage tube (4), with drainage connection ports (6) on both sides of the T-shaped drainage tube (4). The drainage connection ports (6) are controlled by a flow valve (5). A puncture needle tube (2) is provided at the bottom of the T-shaped drainage tube (4). The top of the T-shaped drainage tube (4) is connected to an ultra-fine endoscope (1) via a fastener (3). An ultra-fine endoscope lens (7) is provided at the bottom of the ultra-fine endoscope (1). The ultra-fine endoscope lens (7) is inserted into the puncture needle tube (2).
2. The visual amniocentesis device according to claim 1, characterized in that, The bottom of the puncture needle (2) has a sloping structure.
3. The visual amniocentesis device according to claim 1, characterized in that, The connecting fastener (3) includes a rotating sleeve with an internal thread on its inner wall. The top of the T-shaped drainage tube (4) and the bottom of the ultra-fine endoscope (1) are both provided with external threads, and the internal thread and the external thread are adapted to each other.
4. The visual amniocentesis device according to claim 3, characterized in that, A sealing ring is provided at the connection between the ultra-fine endoscope (1) and the puncture component.
5. The visual amniocentesis device according to claim 4, characterized in that, The sealing ring is made of rubber.
6. The visual amniocentesis device according to claim 5, characterized in that, The outer wall of the rotating sleeve is provided with anti-slip texture, and the anti-slip texture is integrally formed with the rotating sleeve.
7. A visual amniocentesis device according to any one of claims 1-6, characterized in that, The ultra-thin endoscope (1) is equipped with a wireless signal transmitter inside, and the ultra-thin endoscope (1) is connected to a display via a wireless signal.