Amniotic fluid puncture needle fixing device for antenatal diagnosis

Abstract

The utility model belongs to the field of ultrasonic imaging equipment, particularly relates to a fixing device for an amniotic fluid puncture needle for antenatal diagnosis, and aims to solve the problems that the position of an existing clamping seat is fixed, and the angle of the clamping seat is inconvenient to adjust, so that the clamping seat is inconvenient to adjust in the puncture process. In order to solve the problems that the puncture angle of a puncture needle is inconvenient to adjust by medical staff according to actual diagnosis conditions, large puncture errors exist, and potential safety hazards are caused, the following scheme is provided, the puncture needle fixing device comprises a fixing mechanism, and the fixing mechanism is arranged on a second fixing block and used for clamping and fixing the puncture needle; the adjusting mechanism is arranged on the fixing support and used for adjusting the angle of the fixing mechanism. When the puncture needle is used, the angle of the puncture needle can be conveniently and accurately adjusted, the situation that in the puncture process, medical staff cannot conveniently adjust the puncture angle of the puncture needle according to the actual diagnosis situation is avoided, the situation that large puncture errors exist in the puncture process, potential safety hazards are caused is avoided, and the using effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ultrasonic imaging equipment, in particular to an amniocentesis needle fixing device for prenatal diagnosis. Background Art

[0002] Ultrasonic interventional technology, as a branch of modern ultrasound medicine, is a new technology developed based on ultrasound imaging to further meet the needs of clinical diagnosis and treatment. Fine needle puncture is performed under the guidance of medical ultrasound instruments, so a puncture needle fixation device is required;

[0003] After searching, the patent with authorization announcement number CN209474756U proposes a puncture needle fixing device for ultrasonic diagnostic equipment. The puncture needle fixing device of the utility model includes a clamping seat and a fixing bracket. One end of the clamping seat has a puncture needle station for placing the puncture needle and a locking component for fixing the puncture needle in place. The other end of the clamping seat is connected to the fixing bracket as an installation basis, and the clamping seat with the puncture needle is fixed to the puncture device. The puncture needle fixing device of the utility model has a simple and reasonable structure. When working, it can realize the positioning, clamping and replacement of the puncture needle quickly and conveniently, ensuring the reliable puncture effect of the puncture needle. The following problems exist in this technical solution:

[0004] When in use, the provided clamping seat can be used to fix the puncture needle. Since the position of the clamping seat is fixed and the angle of the clamping seat is not easy to adjust, it is not convenient for medical staff to adjust the insertion angle of the puncture needle according to the actual diagnosis during the puncture process, which will result in a large insertion error and bring safety hazards.

[0005] In view of the above problems, the present utility model document proposes a device for fixing an amniocentesis needle for prenatal diagnosis. Utility Model Content

[0006] The utility model provides a device for fixing an amniocentesis needle for prenatal diagnosis, which solves the disadvantages of the prior art that the position of the clamping seat is fixed and the angle of the clamping seat is not easy to adjust, resulting in inconvenience for medical staff to adjust the insertion angle of the puncture needle according to the actual diagnosis situation during the puncture process, thereby resulting in a large insertion error and bringing safety hazards.

[0007] The utility model provides the following technical solutions:

[0008] An amniocentesis needle fixing device for prenatal diagnosis, comprising:

[0009] A fixed bracket, wherein a first fixed block and a second fixed block are respectively provided on one side of the fixed bracket, the first fixed block and the second fixed block are connected and fixed by a plurality of connecting blocks, and a first arc groove and a second arc groove are both provided on one side of the first fixed block and the second fixed block;

[0010] A fixing mechanism, which is arranged on the second fixing block and is used to clamp and fix the puncture needle;

[0011] The adjusting mechanism is arranged on the fixing bracket and is used for adjusting the angle of the fixing mechanism.

[0012] In a possible design, the fixing mechanism includes a threaded rod, one end of which passes through one side of the second fixing block and extends to the interior of the second arc groove, the outer wall of the threaded rod is connected to the internal thread of the second fixing block, one end of the threaded rod is rotatably connected to a clamping arc plate through a rotating shaft, the inner wall of the clamping arc plate is provided with anti-slip grooves, and a needle cavity for the puncture needle to pass through is formed between the inner wall of the clamping arc plate and the inner wall of the first arc groove.

[0013] In a possible design, two limiting rods are fixedly provided on the outer wall of the clamping arc plate, and two sliding holes for sliding connection of the limiting rods are provided inside the second fixing block.

[0014] In a possible design, the adjustment mechanism includes two rotating frames, both of which are fixed on one side of the first fixed block, and the two rotating frames are fixed to the fixed brackets by bolts, and threaded holes for bolt threaded connection are opened inside the fixed brackets.

[0015] In a possible design, a fixing knob is threadedly connected to the outer wall of the bolt, a plurality of anti-slip strips are provided on the outer wall of the fixing knob, and a fastening pad that fits with one side of one of the rotating frames is provided on one side of the fixing knob.

[0016] In a possible design, a vernier scale is fixedly provided on one side of the fixed bracket, a slide groove is opened on one side of the vernier scale, scale lines are provided on one side of the vernier scale, a sliding rod slidably connected to the inside of the slide groove is fixedly provided on one side of the first fixed block, a limit plate is fixedly provided on one end of the sliding rod, and an indicator block corresponding to the scale line is fixedly provided on the outer wall of the limit plate.

[0017] In the present application, when used, a color Doppler ultrasound diagnostic instrument is first used to perform an abdominal ultrasound examination, the pregnant woman is placed in a supine position, and the ultrasound image is amplified to distinguish the fetal skin and the amniotic membrane, the fetal head and upper chest occupy the entire screen, the fetus is in a natural posture, and then the connection hole on the fixed bracket is used to connect with the ultrasound diagnostic equipment. After the power driving device on the ultrasound diagnostic equipment is connected, it is convenient to drive the puncture needle to perform puncture movement later. The power driving device can be a cylinder piston rod, a motor push rod, a push rod for manual control, etc. When the fixed bracket is connected, the puncture needle is passed through the needle cavity, and then according to the According to the actual situation of the detection and diagnosis, the fixing knob is loosened, and the anti-skid strip on the outer wall of the fixing knob can play a good anti-skid role, and the bolt can be threadedly moved in the corresponding threaded hole, so that the two rotating frames are in a loose state, and then the first fixing block and the second fixing block are rotated to adjust the rotation angle of the rotating frame, and the adjustment of the needle cavity and the puncture needle angle is also realized. After adjusting to a suitable angle, the fixing knob is tightened until the fastening pad on one side of the fixing knob is tightly fitted with the outer wall of one of the rotating frames, so that the rotating frame and the first fixing block and the second fixing block can be locked and fixed, thereby improving the firmness;

[0018] Since the center of the vernier scale fixed on one side of the bolt and the fixed bracket is the same, when the first fixed block and the second fixed block rotate at an angle, the sliding rod fixed on one side of the second fixed block will slide in the sliding groove opened on one side of the vernier scale, and the limiting plate fixed on one end of the sliding rod can limit the sliding rod, and at the same time, the indicator block on the outer wall of the limiting plate will point to the corresponding scale line, and then the rotation angle of the needle cavity can be determined by observing the scale line, so as to facilitate the precise adjustment of the angle of the puncture needle, avoid the inconvenience of medical staff to adjust the insertion angle of the puncture needle according to the actual diagnosis during the puncture process, avoid large insertion errors during puncture, bring safety hazards, improve the use effect, and then drive the puncture needle to perform puncture movement through the manually controlled push rod, so that the puncture needle pierces the amniotic fluid of the pregnant woman, and then under ultrasound Under guidance, 30mL of amniotic fluid of the pregnant woman is extracted through the puncture needle (10mL is used for CMA detection, and 20mL is used for chromosome karyotype analysis), which improves the use effect. When the puncture needle is inserted, the threaded rotary rod is immediately rotated, and the threaded connection between the threaded rotary rod and the second fixed block can drive the clamping arc plate rotatably connected to one end of the threaded rotary rod to move toward the inner wall of the first arc groove, and then after moving to a certain extent, the puncture needle can be clamped and fixed. The anti-slip pattern on the inner wall of the clamping arc plate can increase the friction between the inner wall of the clamping arc plate and the outer wall of the puncture needle to prevent the puncture needle from sliding and falling off arbitrarily, thereby improving stability. At the same time, the limit rod fixed on the outer wall of the clamping arc plate will slide in the corresponding sliding hole, which is conducive to the role of sliding limit, improves the stability of the clamping arc plate when moving, and is easy to use.

[0019] In the utility model, the fixing device for amniocentesis needle for prenatal diagnosis can adjust the rotation angle of the rotating frame through the adjustment mechanism, and also realizes the adjustment of the needle cavity and the angle of the puncture needle, and also facilitates the precise adjustment of the angle of the puncture needle;

[0020] In the utility model, the fixing device for amniocentesis needle for prenatal diagnosis can clamp and fix the puncture needle through the fixing mechanism, thereby preventing the puncture needle from sliding and falling off at will, and improving stability;

[0021] The utility model facilitates accurate adjustment of the angle of the puncture needle, avoids the inconvenience of medical personnel adjusting the insertion angle of the puncture needle according to actual diagnosis conditions during the puncture process, prevents large insertion errors during puncture, and causes safety hazards, thereby improving the use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of the main structure of a fixing device for amniocentesis needle for prenatal diagnosis provided by an embodiment of the utility model;

[0023] Figure 2 A schematic diagram of a fixing bracket structure for a fixing device for an amniocentesis needle for prenatal diagnosis provided by an embodiment of the utility model;

[0024] Figure 3 A schematic structural diagram of a first fixing block and a second fixing block of a fixing device for an amniocentesis needle for prenatal diagnosis provided by an embodiment of the utility model;

[0025] Figure 4 This is a schematic cross-sectional structure diagram of a first fixing block and a second fixing block of a fixing device for an amniocentesis needle for prenatal diagnosis provided by an embodiment of the utility model.

[0026] Reference numerals:

[0027] 1. Fixed bracket; 2. First fixed block; 3. Second fixed block; 4. Connecting block; 5. Rotating frame; 6. Bolt; 7. Threaded hole; 8. Fixed knob; 9. Fastening pad; 10. Vernier scale; 11. Slide groove; 12. Scale line; 13. Slide rod; 14. Limit plate; 15. Indicator block; 16. Threaded rotating rod; 17. Clamping arc plate; 18. Anti-slip pattern; 19. Limit rod; 20. Slide hole. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0029] Example 1

[0030] Please refer to Figure 1-Figure 4 A fixing device comprises a fixing bracket 1, a first fixing block 2 and a second fixing block 3 are respectively arranged on one side of the fixing bracket 1, the first fixing block 2 and the second fixing block 3 are connected and fixed by a plurality of connecting blocks 4, a first arc groove and a second arc groove are respectively provided on one side of the first fixing block 2 and the second fixing block 3, a fixing mechanism is arranged on the second fixing block 3 for clamping and fixing the puncture needle, an adjusting mechanism is arranged on the fixing bracket 1 for adjusting the angle of the fixing mechanism, the rotation angle of the rotating frame 5 can be adjusted by the adjusting mechanism, the adjustment of the needle cavity and the puncture needle angle is also realized, and it is also convenient to accurately adjust the angle of the puncture needle, the puncture needle can be clamped and fixed by the fixing mechanism, and the puncture needle is prevented from sliding and falling off arbitrarily, thereby improving stability.

[0031] In this embodiment, the fixing mechanism includes a threaded rotating rod 16, one end of which passes through one side of the second fixing block 3 and extends to the inside of the second arc groove, the outer wall of the threaded rotating rod 16 is connected to the internal thread of the second fixing block 3, and one end of the threaded rotating rod 16 is rotatably connected to a clamping arc plate 17 through a rotating shaft, and the inner wall of the clamping arc plate 17 is provided with anti-slip grooves 18. A needle cavity for the puncture needle to pass through is formed between the inner wall of the clamping arc plate 17 and the inner wall of the first arc groove. When in use, one end of the puncture needle is inserted into the needle cavity, and then the threaded rotating rod 16 is rotated. Since the outer wall of the threaded rotating rod 16 is connected to the internal thread of the second fixing block 3, the threaded rotating rod 16 will drive the clamping arc plate 17 to move toward the inner wall of the first arc groove during the rotation process, so as to clamp and fix the puncture needle. The provision of the anti-slip grooves 18 can increase the friction between the inner wall of the clamping arc plate 17 and the outer wall of the puncture needle to prevent the puncture needle from falling off.

[0032] In this embodiment, two limit rods 19 are fixedly provided on the outer wall of the clamping arc plate 17, and two sliding holes 20 are provided inside the second fixed block 3 for sliding connection of the limit rods 19. Through the setting of the limit rods 19 and the sliding holes 20, the clamping arc plate 17 can be limited in movement to prevent the clamping arc plate 17 from shifting during the movement, thereby improving the stability of the clamping arc plate 17 during movement.

[0033] In this embodiment, the adjustment mechanism includes two rotating frames 5, and the two rotating frames 5 are fixedly arranged on one side of the first fixed block 2. The two rotating frames 5 are connected and fixed to the fixed bracket 1 by bolts 6. The interior of the fixed bracket 1 is provided with threaded holes 7 for the bolts 6 to be threadedly connected. When in use, the bolts 6 are rotated to move the bolts 6 inside the threaded holes 7, so that the rotation angle of the rotating frame 5 can be adjusted to achieve the adjustment of the angle of the puncture needle.

[0034] In this embodiment, the outer wall of the bolt 6 is threadedly connected with a fixing knob 8, and the outer wall of the fixing knob 8 is provided with a plurality of anti-skid strips. The anti-skid strips on the outer wall of the fixing knob 8 can provide good anti-skid performance. One side of the fixing knob 8 is provided with a fastening pad 9 that fits with one side of one of the rotating frames 5. When the angle adjustment of the rotating frame 5 is completed, the fixing knob 8 is rotated to make the fixing knob 8 drive the fastening pad 9 to move toward one side of the rotating frame 5 until it fits tightly with the outer wall of the rotating frame 5, thereby fixing the rotating frame 5, preventing the rotating frame 5 from rotating, and improving the firmness.

[0035] The present application can be used in the field of ultrasonic imaging equipment, and can also be used in other fields applicable to the present application.

[0036] Example 2

[0037] refer to Figure 1-Figure 4 , improved on the basis of the first embodiment: a fixing device for amniocentesis needle for prenatal diagnosis, which is applied to the field of ultrasonic imaging equipment;

[0038] A vernier scale 10 is fixedly provided on one side of the fixed bracket 1, a slide groove 11 is opened on one side of the vernier scale 10, and a scale line 12 is provided on one side of the vernier scale 10. A sliding rod 13 slidably connected to the inside of the slide groove 11 is fixedly provided on one side of the first fixed block 2, and a limit plate 14 is fixedly provided at one end of the sliding rod 13, and an indicating block 15 corresponding to the scale line 12 is fixedly provided on the outer wall of the limit plate 14. When the angle of the rotating frame 5 is adjusted, the first fixed block 2 will drive the sliding rod 13 to slide inside the slide groove 11, and the indicating block 15 will also move on the scale line 12. By observing the position of the indicating block 15 on the scale line 12, the rotation angle of the rotating frame 5 can be determined, which is convenient for accurately adjusting the angle of the puncture needle.

[0039] The above are only specific implementations of the utility model, but the protection scope of the utility model is not limited to them. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model; in the absence of conflicts, the embodiments of the utility model and the features in the embodiments can be combined with each other. Therefore, the protection scope of the utility model shall be based on the protection scope of the claims.

Claims

1. A device for fixing an amniocentesis needle for prenatal diagnosis, characterized in that: include: A fixed bracket (1), wherein a first fixed block (2) and a second fixed block (3) are respectively arranged on one side of the fixed bracket (1), the first fixed block (2) and the second fixed block (3) are connected and fixed via a plurality of connecting blocks (4), and a first arc groove and a second arc groove are both provided on one side of the first fixed block (2) and the second fixed block (3); A fixing mechanism, which is arranged on the second fixing block (3) and is used for clamping and fixing the puncture needle; An adjustment mechanism is arranged on the fixing bracket (1) and is used for adjusting the angle of the fixing mechanism.

2. The device for fixing an amniocentesis needle for prenatal diagnosis according to claim 1, characterized in that: The fixing mechanism comprises a threaded rotating rod (16), one end of which passes through one side of the second fixing block (3) and extends to the inside of the second arc groove, the outer wall of the threaded rotating rod (16) is connected to the inner thread of the second fixing block (3), one end of the threaded rotating rod (16) is rotatably connected to a clamping arc plate (17) via a rotating shaft, the inner wall of the clamping arc plate (17) is provided with anti-slip grooves (18), and a needle cavity for the puncture needle to pass through is formed between the inner wall of the clamping arc plate (17) and the inner wall of the first arc groove.

3. The device for fixing amniocentesis needle for prenatal diagnosis according to claim 2, characterized in that: Two limiting rods (19) are fixedly arranged on the outer wall of the clamping arc plate (17), and two sliding holes (20) for sliding connection of the limiting rods (19) are provided inside the second fixing block (3).

4. The device for fixing amniocentesis needle for prenatal diagnosis according to claim 1, characterized in that: The adjustment mechanism comprises two rotating frames (5), the two rotating frames (5) are fixedly arranged on one side of the first fixed block (2), the two rotating frames (5) are connected and fixed to the fixed bracket (1) by bolts (6), and the fixed bracket (1) is provided with a threaded hole (7) for threaded connection of the bolt (6).

5. The device for fixing an amniocentesis needle for prenatal diagnosis according to claim 4, characterized in that: The outer wall of the bolt (6) is threadedly connected with a fixing knob (8), the outer wall of the fixing knob (8) is provided with a plurality of anti-slip strips, and one side of the fixing knob (8) is provided with a fastening pad (9) that fits with one side of one of the rotating frames (5).

6. The device for fixing an amniocentesis needle for prenatal diagnosis according to claim 5, characterized in that: A vernier scale (10) is fixedly arranged on one side of the fixed bracket (1), a sliding groove (11) is opened on one side of the vernier scale (10), and a scale line (12) is arranged on one side of the vernier scale (10); a sliding rod (13) slidably connected to the inside of the sliding groove (11) is fixedly arranged on one side of the first fixed block (2), a limiting plate (14) is fixedly arranged at one end of the sliding rod (13), and an indicating block (15) corresponding to the scale line (12) is fixedly arranged on the outer wall of the limiting plate (14).

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