A multi-point testicular puncture needle

Abstract

The present invention relates to the technical field of puncture needles, and in particular to a multi-point testicular puncture needle, comprising a positioning needle, a terminal head is inserted at the rear end of the positioning needle, a needle body is fixedly connected to the front end of the terminal head, the needle body slides through the inner side of the positioning needle, a plane cylinder is fixedly sleeved at the front end of the positioning needle, a bucket surface cylinder is sleeved on the outer surface of the positioning needle and near the rear of the plane cylinder, a connecting support is fixedly connected to the lower surface of the positioning needle, a tooth column is fixedly connected to the inner side of the connecting support, a supporting plate is arranged below the connecting support, a fixed plate is fixedly connected to the front end of the upper surface of the supporting plate, a movable plate is connected to the rear end of the upper surface of the supporting plate through an elastic mechanism, the tooth column is meshed with the fixed plate and the movable plate, and a supporting rod is fixedly connected to the lower surface of the supporting plate. The present invention has the function of adapting to the testicular position for positioning puncture, and is convenient to use; it has the function of flexibly adjusting the guiding puncture angle, and is flexible and convenient to use; it is easy to store, and is convenient for overall storage and transportation.

Description

Technical Field

[0001] The invention relates to the technical field of puncture needles, in particular to a multi-point testicular puncture needle. Background Art

[0002] Currently, obstructive azoospermia in men is one of the important factors in infertility. Patients with azoospermia or extremely oligospermia who want to undergo IVF treatment need epididymal or testicular puncture. Most hospitals use a blind puncture plan for testicular puncture, which relies on the experience and technical level of medical staff. The amount of tissue removed by puncture determines the success rate of subsequent treatment.

[0003] The testicular puncture needle currently in use is a biopsy needle, which is a common puncture biopsy needle in the medical field. It is equipped with a positioning needle for easy operation under CT. However, this product is mainly suitable for tissue biopsy of the liver, kidney, prostate and intra-abdominal masses. The needle tube is relatively long and suitable for deep tissues. The testicles are exposed outside the body. When puncturing with the existing biopsy needle, the operator needs to hold the needle tube to insert the needle, which does not meet the requirements of aseptic operation. It may be accidentally touched during puncture, and the overall stability is poor, so the accuracy of the puncture is difficult to guarantee, affecting the patient's medical experience. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the background technology and to propose a multi-point testicular puncture needle.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is: a multi-point testicular puncture needle, comprising a positioning needle, a terminal end is inserted at the rear end of the positioning needle, a needle body is fixedly connected to the front end of the terminal end, the needle body slides through the inner side of the positioning needle, a plane cylinder is fixedly sleeved at the front end of the positioning needle, a bucket surface cylinder is sleeved on the outer surface of the positioning needle and near the rear of the plane cylinder, a connecting support is fixedly connected to the lower surface of the positioning needle, a tooth column is fixedly connected to the inner side of the connecting support, a support plate is arranged below the connecting support, a fixed plate is fixedly connected to the front end of the upper surface of the support plate, a movable plate is connected to the rear end of the upper surface of the support plate through an elastic mechanism, the tooth column is meshed with the fixed plate and the movable plate, a support rod is fixedly connected to the lower surface of the support plate, and the outer surface of the support rod is movably connected to no less than three rotating frames.

[0006] Preferably, the rear end of the bucket cylinder is fixedly connected with a sleeve, and the sleeve is threadedly sleeved on the outer surface of the positioning pin.

[0007] Preferably, the fixed plate and the movable plate are respectively provided with limiting teeth on one side close to the other, and the tooth column is meshed with the limiting teeth.

[0008] Preferably, the outer surface sliding sleeve of the support rod is provided with an adjustment seat, the upper end of the rotating frame is rotatably embedded in the inner side of the adjustment seat, the lower end of the support rod is fixedly connected to the base, the outer surface of the base is rotatably connected to a plurality of connecting frames, one end of each connecting frame is rotatably connected to the outer surface of a rotating frame, the outer surface of the support rod is provided with a plurality of limiting mechanisms, and the adjustment seat is stuck in the inner side of the limiting mechanism.

[0009] Preferably, the limiting mechanism includes an embedded block fixedly connected to the inner wall of the support rod, one side of the embedded block is connected to a concave block through a reset mechanism, and limiting blocks are respectively arranged at the upper and lower ends of one side of the concave block. The limiting block slides through the inner wall of the support rod, and the adjustment seat slides and is inserted between two adjacent limiting blocks.

[0010] Preferably, the reset mechanism includes a connecting tube fixedly connected to the side surface of the embedded block, a plug post is slidably inserted into the port of the connecting tube, one end of the plug post is fixedly connected to the side surface of the concave block, a reset spring is arranged on the inner side of the connecting tube, and one end of the reset spring is fixedly connected to the end face of the plug post.

[0011] Preferably, the elastic mechanism includes a folding plate fixedly connected to the rear end of the support plate, a plurality of T-shaped columns are slidably inserted on the rear surface of the folding plate, a connecting plate is fixedly connected to the lower end of the rear surface of the movable plate, the front end of the T-shaped column is fixedly connected to the rear surface of the connecting plate, a compression spring is sleeved on the outer surface of the T-shaped column, the compression spring is located between the connecting plate and the folding plate, and a pulling plate is fixedly connected to the rear surface of the movable plate.

[0012] Preferably, the front end of the positioning needle is sleeved with a cover body.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. The present invention has the function of adapting the testicle position for positioning puncture, and is easy to use;

[0015] 2. The present invention has the function of flexibly adjusting the guiding puncture angle, and is flexible and convenient to use;

[0016] 3. The present invention is easy to store and convenient for overall storage and transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a multi-point testicular puncture needle of the present invention;

[0018] Figure 2 It is a schematic diagram of the needle body of a multi-point testicular puncture needle of the present invention;

[0019] Figure 3 It is a schematic diagram of the positioning needle of a multi-point testicular puncture needle of the present invention;

[0020] Figure 4 It is a cross-sectional view of the barrel of a multi-point testicular puncture needle of the present invention;

[0021] Figure 5 This is a schematic diagram of a support rod of a multi-point testicular puncture needle of the present invention;

[0022] Figure 6 A multi-point testicular puncture needle according to the present invention Figure 5 Enlarged view of point A in the middle;

[0023] Figure 7 It is a cross-sectional view of a support rod of a multi-point testicular puncture needle of the present invention;

[0024] Figure 8 A multi-point testicular puncture needle according to the present invention Figure 7 Enlarged view of point B in the middle;

[0025] Fig. 9 A cross-sectional view of a connection support of a multi-point testicular puncture needle of the present invention;

[0026] Fig.10 A multi-point testicular puncture needle according to the present invention Fig. 9 Enlarged view of center C.

[0027] 1. Positioning needle; 2. End; 3. Needle body; 4. Cover body; 5. Flat cylinder; 6. Surface cylinder; 7. Sleeve; 8. Connecting bracket; 9. Tooth column; 10. Support plate; 11. Fixed plate; 12. Movable plate; 13. Limiting teeth; 14. Pulling plate; 15. Folding plate; 16. Connecting plate; 17. T-shaped column; 18. Compression spring; 19. Support rod; 20. Adjusting seat; 21. Rotating frame; 22. Base; 23. Connecting frame; 24. Embedded block; 25. Concave block; 26. Limiting block; 27. Insert column; 28. Connecting cylinder; 29. ​​Reset spring. DETAILED DESCRIPTION

[0028] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0029] like Figure 1-Figure 10A multi-point testicular puncture needle shown in the figure comprises a positioning needle 1, a terminal 2 is inserted at the rear end of the positioning needle 1, a needle body 3 is fixedly connected to the front end of the terminal 2, the needle body 3 slides through the inner side of the positioning needle 1, a plane tube 5 is fixedly sleeved at the front end of the positioning needle 1, a bucket surface tube 6 is sleeved on the outer surface of the positioning needle 1 and close to the rear of the plane tube 5, a connecting support 8 is fixedly connected to the lower surface of the positioning needle 1, a tooth column 9 is fixedly connected to the inner side of the connecting support 8, a support plate 10 is arranged below the connecting support 8, a fixed plate 11 is fixedly connected to the front end of the upper surface of the support plate 10, a movable plate 12 is connected to the rear end of the upper surface of the support plate 10 through an elastic mechanism, the tooth column 9 is meshed with the fixed plate 11 and the movable plate 12, a support rod 19 is fixedly connected to the lower surface of the support plate 10, and the outer surface of the support rod 19 is movably connected to no less than three rotating frames 21.

[0030] like Figure 3 , Figure 4 As shown, the rear end of the bucket surface cylinder 6 is fixedly connected with a sleeve 7, and the sleeve 7 is threadedly sleeved on the outer surface of the positioning needle 1. When the positioning needle 1 contacts the skin position with a relatively flat surface, the sleeve 7 is rotated to move the bucket surface cylinder 6 backward, exposing the flat cylinder 5 for stable contact with the skin surface.

[0031] like Fig. 9 As shown, the fixed plate 11 and the movable plate 12 are respectively provided with limiting teeth 13 on the adjacent sides, and the tooth column 9 is meshed with the limiting teeth 13. The tooth column 9 is convenient for rotating and moving up and down by adopting this meshing mode.

[0032] like Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, the outer surface of the support rod 19 is slidably sleeved with an adjustment seat 20, the upper end of the rotating frame 21 is rotatably embedded in the inner side of the adjustment seat 20, the lower end of the support rod 19 is fixedly connected to the base 22, the outer surface of the base 22 is rotatably connected to a plurality of connecting frames 23, one end of each connecting frame 23 is rotatably connected to the outer surface of a rotating frame 21, the outer surface of the support rod 19 is provided with a plurality of limiting mechanisms, and the adjustment seat 20 is snapped into the inner side of the limiting mechanism. The connecting frame 23 serves to limit the angle of the rotating frame 21 when it is opened, ensuring the stable support of the support rod 19.

[0033] The limiting mechanism includes an embedded block 24 fixedly connected to the inner wall of the support rod 19, one side of the embedded block 24 is connected to a concave block 25 through a reset mechanism, and one side of the concave block 25 is provided with a limiting block 26 at the upper and lower ends, and the limiting block 26 slides through the inner wall of the support rod 19, and the adjustment seat 20 slides and snaps between two adjacent limiting blocks 26. This part is designed to limit the position of the adjustment seat 20, ensure the stability of the support when in use, and also ensure that it will not automatically open when folded.

[0034] The reset mechanism includes a connection tube 28 fixedly connected to the side surface of the embedded block 24, a plug post 27 is slidably inserted into the port of the connection tube 28, one end of the plug post 27 is fixedly connected to the side surface of the concave block 25, a reset spring 29 is arranged inside the connection tube 28, and one end of the reset spring 29 is fixedly connected to the end surface of the plug post 27. The elastic force of the reset spring 29 can hold the plug post 27, so that the two limit blocks 26 limit the adjustment seat 20.

[0035] like Fig. 9 , Fig.10 As shown, the elastic mechanism includes a folding plate 15 fixedly connected to the rear end of the support plate 10, a plurality of T-shaped columns 17 are slidably inserted on the rear surface of the folding plate 15, a connecting plate 16 is fixedly connected to the lower end of the rear surface of the movable plate 12, the front end of the T-shaped column 17 is fixedly connected to the rear surface of the connecting plate 16, a compression spring 18 is sleeved on the outer surface of the T-shaped column 17, and the compression spring 18 is located between the connecting plate 16 and the folding plate 15, and a pulling plate 14 is fixedly connected to the rear surface of the movable plate 12. The pulling plate 14 facilitates the user to pull the movable plate 12.

[0036] like Figure 1 As shown, the front end of the positioning needle 1 is covered with a cover 4. The cover 4 plays a protective role to prevent damage to the end of the positioning needle 1. When in use, the end 2 is used to connect the syringe to facilitate subsequent suction operations. The end 2 and the needle body 3 are designed as disposable items and are replaced after one use.

[0037] During use, the positioning needle 1 is guided to the designated position in conjunction with CT, and the flat tube 5 at the front end of the positioning needle 1 will contact the skin surface. When puncture is required at the scrotum position, the sleeve 7 is rotated to make the bucket-surface tube 6 exceed the front end of the flat tube 5. After that, the bucket-surface tube 6 can be more accurately attached to the scrotum surface to achieve a better guiding effect. During puncture, the end 2 is pushed forward so that the front end of the needle body 3 passes through the front end port of the positioning needle 1 to complete the insertion. The suction syringe is docked at the rear end of the end 2 to complete the suction. It has the function of adapting to the testicular position for positioning puncture and is easy to use.

[0038] After pulling the pulling plate 14 backward, the movable plate 12 is moved away from the tooth column 9. Then the connecting bracket 8 can be moved up and down relative to the movable plate 12, and can also be rotated relative to the movable plate 12 to adjust the needle insertion angle guided by the positioning needle 1. After releasing the hand, under the elastic force of the compression spring 18, the connecting plate 16 moves forward, and the limiting tooth 13 engages with the surface of the tooth column 9 again, so that the tooth column 9 can remain stable, and the height and angle of the positioning needle 1 will be limited at the same time, which has the function of flexibly adjusting the guiding angle and is flexible and convenient to use.

[0039] The user presses the limit block 26, and then the adjustment seat 20 can be slid upward, the rotating frame 21 will rotate downward, and the connecting frame 23 will rotate upward. Then the user presses the limit block 26 at the top, and the adjustment seat 20 is inserted between two adjacent limit blocks 26 and then released. Under the elastic force of the return spring 29, the concave block 25 is pushed, and the limit block 26 restricts the adjustment seat 20. At this time, the purpose of folding the rotating frame 21 and the connecting frame 23 is achieved to facilitate the overall storage and transportation.

[0040] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A multi-point testicular puncture needle, comprising a positioning needle (1), characterized in that: The rear end of the positioning needle (1) is inserted with an end head (2), the front end of the end head (2) is fixedly connected with a needle body (3), the needle body (3) slides through the inner side of the positioning needle (1), the front end of the positioning needle (1) is fixedly sleeved with a plane cylinder (5), the outer surface of the positioning needle (1) and close to the rear of the plane cylinder (5) is sleeved with a bucket surface cylinder (6), the lower surface of the positioning needle (1) is fixedly connected with a connecting support (8), the inner side of the connecting support (8) is fixedly connected with a tooth column (9), a support plate (10) is arranged below the connecting support (8), the front end of the upper surface of the support plate (10) is fixedly connected with a fixed plate (11), the rear end of the upper surface of the support plate (10) is connected with a movable plate (12) through an elastic mechanism, the tooth column (9) is meshed with the fixed plate (11) and the movable plate (12), the lower surface of the support plate (10) is fixedly connected with a support rod (19), and the outer surface of the support rod (19) is movably connected with no less than three rotating frames (21); The rear end of the bucket barrel (6) is fixedly connected to a sleeve (7), and the sleeve (7) is threadedly sleeved on the outer surface of the positioning needle (1); When the positioning needle (1) contacts the skin with a flat surface, the sleeve (7) is rotated to move the bucket surface cylinder (6) backward, exposing the flat cylinder (5) for contacting the skin surface; When puncture is required at the scrotum, the sleeve (7) is rotated so that the bucket surface tube (6) extends beyond the front end of the plane tube (5), and the bucket surface tube (6) is attached to the surface of the scrotum.

2. A multi-point testicular puncture needle according to claim 1, characterized in that: Limiting teeth (13) are respectively provided on the surfaces of the fixed plate (11) and the movable plate (12) that are close to each other, and the tooth columns (9) are meshed with the limiting teeth (13).

3. A multi-point testicular puncture needle according to claim 1, characterized in that: The outer surface of the support rod (19) is slidably sleeved with an adjustment seat (20); the upper end of the rotating frame (21) is rotatably embedded in the inner side of the adjustment seat (20); the lower end of the support rod (19) is fixedly connected to a base (22); the outer surface of the base (22) is rotatably connected to a plurality of connecting frames (23); one end of each connecting frame (23) is rotatably connected to the outer surface of a rotating frame (21); the outer surface of the support rod (19) is provided with a plurality of limiting mechanisms; the adjustment seat (20) is snapped into the inner side of the limiting mechanism.

4. A multi-point testicular puncture needle according to claim 3, characterized in that: The limiting mechanism comprises an embedded block (24) fixedly connected to the inner wall of the support rod (19); one side of the embedded block (24) is connected to a concave block (25) via a reset mechanism; upper and lower ends of one side of the concave block (25) are respectively provided with limiting blocks (26); the limiting blocks (26) slide through the inner wall of the support rod (19); and the adjustment seat (20) slides and snaps into place between two adjacent limiting blocks (26).

5. A multi-point testicular puncture needle according to claim 4, characterized in that: The reset mechanism comprises a connecting tube (28) fixedly connected to the side surface of the embedded block (24), a plug post (27) is slidably inserted into the port of the connecting tube (28), one end of the plug post (27) is fixedly connected to the side surface of the concave block (25), a reset spring (29) is arranged on the inner side of the connecting tube (28), and one end of the reset spring (29) is fixedly connected to the end surface of the plug post (27).

6. A multi-point testicular puncture needle according to claim 1, characterized in that: The elastic mechanism comprises a folding plate (15) fixedly connected to the rear end of the support plate (10); a plurality of T-shaped columns (17) are slidably inserted on the rear surface of the folding plate (15); a connecting plate (16) is fixedly connected to the lower end of the rear surface of the movable plate (12); the front end of the T-shaped column (17) is fixedly connected to the rear surface of the connecting plate (16); a compression spring (18) is sleeved on the outer surface of the T-shaped column (17); the compression spring (18) is located between the connecting plate (16) and the folding plate (15); and a pulling plate (14) is fixedly connected to the rear surface of the movable plate (12).

7. A multi-point testicular puncture needle according to claim 1, characterized in that: The front end of the positioning needle (1) is sleeved with a cover body (4).

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