Amniotic fluid puncture needle extension device for gynaecology and obstetrics examination

Abstract

The utility model discloses an amniotic fluid puncture needle extension device for gynaecology and obstetrics examination, which relates to the technical field of gynaecology and obstetrics examination and comprises a puncture needle, an equipment clamping mechanism is mounted outside the puncture needle, and an equipment fixing mechanism is mounted below the equipment clamping mechanism. According to the amniotic fluid puncture needle extending device for gynaecology and obstetrics examination, a clamping ring is arranged outside a puncture needle, a limiting ring and a clamping inner ring are arranged in the middle of the clamping ring, when the puncture needle is inserted into the middle of the clamping inner ring in a penetrating mode, the clamping ring is held by a hand, springs are connected among the clamping ring, the limiting ring and the clamping inner ring, one end of each spring is stressed, and the clamping ring is inserted into the clamping inner ring. The clamping ring and the clamping inner ring gather towards the outside of the puncture needle, so that the puncture needles with different thicknesses and sizes are clamped, the limiting ring can limit the clamping inner ring and prevent the clamping inner ring from rebounding outwards, the outside of the puncture needle can be clamped through the design, and the puncture needle is prevented from falling off.

Description

Technical Field

[0001] The utility model relates to the technical field of obstetrics and gynecology inspection, in particular to an amniocentesis needle extension device for obstetrics and gynecology inspection. Background Art

[0002] Amniocentesis, also known as placental puncture, is a common examination for pregnant women. The process of passing a thin needle through the pregnant woman's belly and uterine wall into the amniotic fluid cavity and extracting some amniotic fluid is called "amniocentesis". It can help doctors diagnose fetal diseases. It can check the health of the fetus and help doctors make correct treatment decisions. For this purpose, an amniocentesis needle extension device for obstetrics and gynecology examinations is proposed.

[0003] The existing Chinese utility model patent with reference announcement number: CN215272918U discloses an amniocentesis needle extension device for obstetrics and gynecology examinations. The device comprises a leather cup and a bracket arranged on the upper side of the leather cup. An adjustment seat is arranged on the upper side of the bracket. A sphere is embedded in the adjustment seat. A guide seat is passed through the inner side of the sphere. A guide tube is arranged in the guide seat. The bracket is hemispherical and has a through hole on the upper side. The leather cup is trumpet-shaped. The utility model adopts a leather cup to support the extension device, reduce the pressure on the pregnant woman, and avoid harming the fetus. At the same time, a through hole is arranged on the upper side bracket of the leather cup, which is convenient for medical staff to observe or use hemostatic cotton for hemostasis.

[0004] During the use of the existing amniocentesis needle extension device for obstetrics and gynecology examination, since the puncture needle needs to be held by hand to fix the device during puncture, the hand-held puncture needle is easily deviated by external factors. Since one end of the puncture needle is relatively sharp, if it deviates when held by hand, it is easy to cause the puncture needle to scratch the fetus, which poses a certain risk. In addition, the puncture needles are of different sizes, and when fixing the puncture needle, it cannot be fixed according to the thickness of the device, resulting in poor fixation of the puncture needle, which needs to be improved. Therefore, the technical personnel in this field provide an amniocentesis needle extension device for obstetrics and gynecology examination to solve the problems raised in the above background technology. Utility Model Content

[0005] The purpose of the utility model is to provide an amniocentesis needle extension device for obstetrics and gynecology examination to solve the problems of equipment fixing and equipment clamping of the existing amniocentesis needle extension device for obstetrics and gynecology examination proposed in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] An amniocentesis needle extension device for obstetrics and gynecology inspection comprises a puncture needle, a device clamping mechanism is installed on the outside of the puncture needle, a device fixing mechanism is installed below the device clamping mechanism, and the device clamping mechanism comprises: a clamping ring installed on the outside of the puncture needle, a fixing rod is connected to the outside of the clamping ring, and a connecting rod is connected to the bottom of the clamping ring, and a limiting ring for preventing the device from bouncing outward is arranged inside the clamping ring, a spring is inserted inside the limiting ring, and a clamping inner ring for fixing the device is installed at one end of the spring;

[0008] The equipment fixing mechanism includes: an extension device installed below the clamping ring, a fixture is connected to the upper midpoint of the extension device, a pressing device for extending downward is installed at the midpoint of the fixture, and an adjusting stud for distance adjustment is connected to one side of the pressing device, and a fixture screw is provided at one end of the adjusting stud.

[0009] Preferably, a puncture disk is connected above the midpoint of the adjusting stud, and device screws are arranged on four sides of the puncture disk; the puncture needle can extract and test the amniotic fluid of the pregnant woman.

[0010] Preferably, an equipment hole is passed through the middle of the puncture disk, a disk ring is provided at the bottom of the puncture disk, and the puncture needle is inserted into the inside of the equipment hole; the equipment hole allows the puncture needle to be inserted from the inside of the device.

[0011] Preferably, the device is connected by adjusting the stud and the disc ring, and the extension device is distributed in a ring through the midpoint of the puncture disc, and the device screw and the extension device are located on the same horizontal line; the adjusting stud can adjust the distance between the puncture disc and the extension device.

[0012] Preferably, the connecting rod is connected to the top of the puncture disk, and the clamping ring is connected to the puncture disk through the connecting rod, and the rear end of the spring is connected to the inner wall of the clamping ring, the clamping ring is elastically connected to the clamping inner ring through the spring, and the puncture needle passes through the inside of the clamping inner ring; the limiting ring can prevent the clamping inner ring from rebounding outward.

[0013] Preferably, the pressing device passes through the interior of the fixture and is connected to the extension device, and the extension device is connected to the fixture and the adjustment stud; the extension device can stabilize the device.

[0014] Preferably, the clamping ring and the inner clamping ring are located in the upper middle of the puncture needle, and the puncture disk is located at the midpoint of the puncture needle; the inner clamping ring can clamp and fix puncture needles of different thicknesses.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. This amniocentesis needle extension device for obstetrics and gynecology examination is provided with a clamping ring on the outside of the puncture needle, and a limit ring and a clamping inner ring are respectively provided in the middle of the clamping ring. When the puncture needle is inserted in the middle of the clamping inner ring, the clamping ring is held by hand, and a spring is connected between the clamping ring, the limit ring and the clamping inner ring. One end of the spring is stressed, so that the clamping ring and the clamping inner ring gather toward the outside of the puncture needle, thereby clamping puncture needles of different thicknesses and sizes, and the limit ring can limit the clamping inner ring to prevent the clamping inner ring from rebounding outward. This design can clamp the outside of the puncture needle to prevent the puncture needle from falling off;

[0017] 2. The amniocentesis needle extension device for obstetrics and gynecology examination is provided with a puncture disk under the clamping ring, the bottom of the puncture disk is connected to a disk ring, and the four sides with the disk ring as the midpoint are connected to adjusting studs, and the adjusting studs are connected through a pressing device, a device and an extension device. When the medical staff takes a sample of amniotic fluid from the pregnant woman, the pressing device is pressed downward to extend the extension device downward so that the extension device is located above the abdomen of the pregnant woman. According to the number of extension devices set to three and the principle of stability of the triangle, the force area of ​​the equipment can be increased to make the equipment stable. When the extension device is stabilized on the abdominal surface of the pregnant woman, the amniotic fluid is extracted with a puncture needle so that the puncture needle is fixed during extraction to prevent the puncture needle from shifting during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of an amniocentesis needle extension device for gynecological and obstetric examinations in one embodiment of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of an extension device of an amniocentesis needle extension device for gynecological and obstetric examinations in one embodiment of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of a clamping ring of an amniocentesis needle extension device for gynecological and obstetric examinations in one embodiment of the utility model;

[0021] Figure 4 This is a schematic diagram of the puncture needle structure of an amniocentesis needle extension device for gynecological and obstetric examination in one embodiment of the utility model.

[0022] 1. Puncture needle; 11. Puncture disk; 12. Disk ring; 13. Equipment hole; 2. Clamping ring; 21. Fixing rod; 22. Connecting rod; 23. Limiting ring; 24. Clamping inner ring; 25. Spring; 3. Extension device; 31. Installer; 32. Pressing device; 33. Adjusting stud; 34. Installing screw. DETAILED DESCRIPTION

[0023] 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.

[0024] Combined with Figure 1-Figure 4 In this embodiment, an amniocentesis needle extension device for obstetrics and gynecology examination includes a puncture needle 1, a device clamping mechanism is installed on the outside of the puncture needle 1, a device fixing mechanism is installed below the device clamping mechanism, a puncture disk 11 is connected above the midpoint of the adjustment stud 33, and a device screw 34 is arranged on the four sides of the puncture disk 11; an equipment hole 13 runs through the middle of the puncture disk 11, and a disk ring 12 is arranged at the bottom of the puncture disk 11, and the puncture needle 1 is inserted into the inside of the device hole 13.

[0025] Specifically, a puncture disk 11 is provided on the outside of the puncture needle 1, and a device hole 13 is penetrated in the middle of the puncture disk 11. The puncture needle 1 passes through the inside of the device hole 13. The disk ring 12 connected to the bottom of the puncture disk 11 and the adjustment stud 33 are connected to make the devices become one, which is convenient for fixing the puncture needle 1 and other processing.

[0026] The device clamping mechanism includes: a clamping ring 2 installed on the outside of the puncture needle 1, the outside of the clamping ring 2 is connected to a fixing rod 21, and the bottom of the clamping ring 2 is connected to a connecting rod 22, and the inside of the clamping ring 2 is provided with a limiting ring 23, the inside of the limiting ring 23 is inserted with a spring 25, and one end of the spring 25 is installed with a clamping inner ring 24; the connecting rod 22 is connected to the top of the puncture disk 11, and the clamping ring 2 is connected to the puncture disk 11 through the connecting rod 22, and the rear end of the spring 25 is connected to the inner wall of the clamping ring 2, and the clamping ring 2 is elastically connected to the clamping inner ring 24 through the spring 25, and the puncture needle 1 passes through the inside of the clamping inner ring 24; the clamping ring 2 and the clamping inner ring 24 are located in the middle and upper part of the puncture needle 1, and the puncture disk 11 is located at the midpoint of the puncture needle 1.

[0027] Specifically, a clamping inner ring 24 is provided on the outside of the puncture needle 1, and a limit ring 23 and a clamping ring 2 are respectively provided on the outside of the clamping inner ring 24, and a spring 25 runs through the inside of the limit ring 23, and the two ends of the spring 25 are respectively connected to the clamping ring 2 and the clamping inner ring 24. When the puncture needle 1 is inserted into the inside of the clamping inner ring 24, the clamping ring 2 and the fixing rod 21 are held by hand, and the spring 25 is subjected to force, so that the clamping ring 2, the limit ring 23 and the clamping inner ring 24 move closer to the outside of the puncture needle 1 until they are clamped on the outside of the puncture needle 1, thereby clamping and fixing puncture needles 1 of different thicknesses.

[0028] The device fixing mechanism includes: an extension device 3 installed below the clamping ring 2, a fixture 31 is connected to the upper midpoint of the extension device 3, a pressing device 32 is installed at the midpoint of the fixture 31, and an adjusting stud 33 is connected to one side of the pressing device 32, and a fixture screw 34 is provided at one end of the adjusting stud 33; the fixture 31 is connected to the disk ring 12 through the adjusting stud 33, and the extension device 3 is distributed in a ring through the midpoint of the puncture disk 11, and the fixture screw 34 and the extension device 3 are located on the same horizontal line; the pressing device 32 runs through the interior of the fixture 31 and is connected to the extension device 3, and the extension device 3 is connected to the fixture 31 and the adjusting stud 33.

[0029] Specifically, the extension device 3 is connected to the bottom of the puncture plate 11 by adjusting the stud 33. At the same time, the adjusting stud 33 can adjust the distance between the puncture plate 11 and the extension device 3. The device is then fixed by the device screw 34. A device 31 and a pressing device 32 are provided above the extension device 3. The pressing device 32 is pressed simultaneously by hand to extend the extension device 3 downward until the extension device 3 is set on the abdominal surface of the pregnant woman, so that the extension device 3 and the clamping ring 2 and other equipment are fixed to facilitate subsequent sampling.

[0030] Working principle: First, adjust the distance between the adjusting stud 33 and the puncture disk 11, and then fix the adjusting stud 33 with the device screw 34, insert the puncture needle 1 into the clamping inner ring 24 and the inside of the equipment hole 13. Because the thickness of the puncture needle 1 is different, the clamping inner ring 24 cannot completely clamp the puncture needle 1. Medical personnel need to hold the clamping ring 2 and the fixing rod 21 by hand. The clamping ring 2 is connected to the clamping inner ring 24 through the spring 25, and a limiting ring 23 is set between the clamping ring 2 and the clamping inner ring 24. When the clamping ring 2 is retracted toward the inside of the puncture needle 1, the spring 25 is stressed, so that the clamping ring 2 and The limiting ring 23 and the clamping inner ring 24 continue to approach the outside of the puncture needle 1 until the clamping inner ring 24 completely clamps the outside of the puncture needle 1, clamps and fixes the puncture needle 1, and then starts to find the puncture position. After finding the position, press the pressing device 32 downward by hand at the same time to extend the extension device 3 downward so that the extension device 3 is stably set on the abdominal surface of the pregnant woman. After the extension device 3 is fixed, use the puncture needle 1 to sample amniotic fluid. After the sampling is completed, release the pressing device 32 and remove the equipment one by one. In this way, the entire use process of the amniocentesis needle extension device for obstetrics and gynecology examination is completed.

[0031] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. An amniocentesis needle extension device for obstetrics and gynecology examination, comprising a puncture needle (1), an equipment clamping mechanism is installed on the outside of the puncture needle (1), and an equipment fixing mechanism is installed below the equipment clamping mechanism, characterized in that: The device clamping mechanism comprises: a clamping ring (2) installed on the outside of the puncture needle (1), the outside of the clamping ring (2) is connected to a fixing rod (21), the bottom of the clamping ring (2) is connected to a connecting rod (22), and a limiting ring (23) is arranged inside the clamping ring (2), a spring (25) is inserted inside the limiting ring (23), and a clamping inner ring (24) is installed at one end of the spring (25); The device fixing mechanism comprises: an extension device (3) installed below the clamping ring (2); a fixture (31) is connected to the upper midpoint of the extension device (3); a pressing device (32) is installed at the midpoint of the fixture (31); an adjusting stud (33) is connected to one side of the pressing device (32); and a fixture screw (34) is provided at one end of the adjusting stud (33).

2. The amniocentesis needle extension device for obstetrics and gynecology examination according to claim 1, characterized in that: A puncture disk (11) is connected above the midpoint of the adjusting screw (33), and the device screws (34) are arranged on four sides of the puncture disk (11).

3. The amniocentesis needle extension device for obstetrics and gynecology examination according to claim 2, characterized in that: An equipment hole (13) runs through the middle of the puncture disk (11), a disk ring (12) is provided at the bottom of the puncture disk (11), and the puncture needle (1) is inserted into the interior of the equipment hole (13).

4. The amniocentesis needle extension device for obstetrics and gynecology examination according to claim 3, characterized in that: The device (31) is connected to the disk ring (12) by adjusting the stud (33), and the extension device (3) is distributed in a ring shape through the midpoint of the puncture disk (11), and the device screw (34) and the extension device (3) are located on the same horizontal line.

5. The amniocentesis needle extension device for obstetrics and gynecology examination according to claim 2, characterized in that: The connecting rod (22) is connected to the top of the puncture disk (11), and the clamping ring (2) is connected to the puncture disk (11) through the connecting rod (22), and the rear end of the spring (25) is connected to the inner wall of the clamping ring (2), and the clamping ring (2) is elastically connected to the clamping inner ring (24) through the spring (25), and the puncture needle (1) passes through the inside of the clamping inner ring (24).

6. The amniocentesis needle extension device for obstetrics and gynecology examination according to claim 1, characterized in that: The pressing device (32) passes through the interior of the fixture (31) and is connected to the extension device (3), and the extension device (3) is connected to the adjustment stud (33) through the fixture (31).

7. The amniocentesis needle extension device for gynecological and obstetric examination according to claim 2, characterized in that: The clamping ring (2) and the clamping inner ring (24) are located in the upper middle of the puncture needle (1), and the puncture disk (11) is located at the midpoint of the puncture needle (1).

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