Puncture needle convenient to use

Abstract

The utility model belongs to the technical field of puncture needles, and particularly relates to a puncture needle convenient to use, which comprises a handheld part, a needle body and a connecting tube, a first protective sleeve and a second protective sleeve are arranged outside the needle body, and connecting rods are fixedly connected to the ends, close to the handheld part, of the upper end face and the lower end face of the first protective sleeve and the second protective sleeve. The upper end face and the lower end face of the handheld part are each fixedly connected with two symmetrically-distributed connecting shafts, the other ends of the four connecting rods are rotationally connected with the four connecting shafts correspondingly, and the opposite outer walls of the first protective sleeve and the second protective sleeve are each provided with a needle groove matched with a needle body. The outer walls, opposite to each other, of the first protective sleeve and the second protective sleeve are provided with pipe grooves matched with the connecting pipes. Through cooperation of the first protective sleeve, the second protective sleeve, the connecting shaft, the connecting rod, the limiting plate, the inserting rod and the spring, the first protective sleeve and the second protective sleeve can be arranged outside the movable connecting pipe of the needle body in a sleeving mode, the first protective sleeve and the second protective sleeve are integrated with the needle body through the handheld part, and therefore the needle body can be protected conveniently; and the first protective sleeve and the second protective sleeve can be prevented from being lost.

Description

Technical Field

[0001] This utility model belongs to the field of puncture needle technology, specifically a puncture needle that is easy to use. Background Technology

[0002] A puncture needle is a medical device used in minimally invasive surgery to sample and inject tissue from various organs, including the kidneys, liver, lungs, breasts, thyroid gland, prostate, pancreas, testes, uterus, and ovaries. It is characterized by its sharpness, strong puncture capability, and minimal damage. Puncture needles are also frequently used in orthopedic surgery.

[0003] Most existing puncture needles are disposable and have a protective sleeve to protect the tip when not in use. The protective sleeve needs to be removed before use and put back on afterward. Because the puncture needle is relatively thin, putting the protective sleeve back on is inconvenient and prone to misalignment, which could easily injure medical staff and pose a safety hazard. In addition, because the protective sleeve is small, it is easy to misplace after removal, which adds to the inconvenience. Summary of the Invention

[0004] This utility model proposes a puncture needle that is easy to use. The first protective sleeve and the second protective sleeve are integrated with the needle body through the handle, which facilitates the protection of the needle body and prevents the first and second protective sleeves from being lost.

[0005] This utility model is implemented as follows: a user-friendly puncture needle includes a handle, a needle body, and a connecting tube. The needle body is provided with a first protective sleeve and a second protective sleeve. The upper and lower end faces of the first and second protective sleeves are fixedly connected to the end of the handle. The upper and lower end faces of the handle are fixedly connected to two symmetrically distributed connecting shafts. The other ends of the four connecting rods are rotatably connected to the four connecting shafts respectively. The outer walls of the first and second protective sleeves opposite to each other are provided with needle grooves that match the needle body. The outer walls of the first and second protective sleeves opposite to each other are provided with tube grooves that match the connecting tube.

[0006] To facilitate the fixing of the first protective sleeve and the second protective sleeve, as a preferred puncture needle of this utility model, the second protective sleeve has a limiting groove inside, a limiting plate is slidably connected inside the limiting groove, and an insertion rod is fixedly connected to the upper end face of the limiting plate. The outer wall of the first protective sleeve has a slot that matches the insertion rod.

[0007] To prevent the insertion rod from coming out of the slot, as a preferred puncture needle of this utility model for ease of use, the outer wall of the insertion rod is fitted with a spring located between the lower end face of the limiting groove and the limiting plate.

[0008] In order to maintain a good seal between the first protective sleeve and the second protective sleeve and prevent foreign objects from contacting the needle body, as a preferred embodiment of the present invention for easy-to-use puncture needle, the first protective sleeve is provided with a sealing gasket near the outer wall of the second protective sleeve, and the second protective sleeve is provided with a sealing groove that matches the sealing gasket near the outer wall of the first protective sleeve.

[0009] To facilitate the connection between the first and second protective sleeves, the insertion rod is preferably U-shaped, making it an easy-to-use puncture needle according to this utility model.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] This utility model uses a first protective sleeve, a second protective sleeve, a connecting shaft, a connecting rod, a limiting plate, a plug rod, and a spring to fit the first and second protective sleeves onto the outside of the needle body or connecting tube. The first and second protective sleeves are integrated with the needle body via a hand-held part, which facilitates the protection of the needle body and prevents the protective sleeves from being lost. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0014] Figure 2 This is a three-dimensional structural diagram of the first and second protective sleeves of this utility model in their initially opened state;

[0015] Figure 3 This is a three-dimensional structural diagram of the first and second protective sleeves of this utility model in their fully opened states.

[0016] Figure 4 This is a schematic diagram of the left-side cross-sectional structure of this utility model.

[0017] In the diagram: 1. Handheld part; 2. Needle body; 3. First protective sleeve; 4. Second protective sleeve; 5. Connecting shaft; 6. Connecting rod; 7. Connecting tube; 8. Tube groove; 9. Needle groove; 10. Sealing gasket; 11. Sealing groove; 12. Limiting slide groove; 13. Limiting plate; 14. Insert rod; 15. Spring; 16. Slot. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0019] In the description of this utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, in the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0020] Please see Figure 1-4 A user-friendly puncture needle includes a handle 1, a needle body 2, and a connecting tube 7. The needle body 2 is provided with a first protective sleeve 3 and a second protective sleeve 4. The upper and lower end faces of the first protective sleeve 3 and the second protective sleeve 4 are fixedly connected to the end of the handle 1. The upper and lower end faces of the handle 1 are fixedly connected to two symmetrically distributed connecting shafts 5. The other ends of the four connecting rods 6 are rotatably connected to the four connecting shafts 5 respectively. The outer walls of the first protective sleeve 3 and the second protective sleeve 4 opposite to each other are provided with needle grooves 9 that match the needle body 2. The outer walls of the first protective sleeve 3 and the second protective sleeve 4 opposite to each other are provided with tube grooves 8 that match the connecting tube 7.

[0021] In this embodiment: the insertion rod 14 is pulled upward, and the first protective sleeve 3 and the second protective sleeve 4 are rotated along the connecting shaft 5 so that the first protective sleeve 3 and the second protective sleeve 4 rotate to one side of the connecting tube 7, so that the needle body 2 is exposed. The first protective sleeve 3 and the second protective sleeve 4 clamp the connecting tube 7 inside the tube groove 8, and the first protective sleeve 3 and the second protective sleeve 4 are fixed again by the insertion rod 14. After the puncture needle is used up, the operation is reversed so that the first protective sleeve 3 and the second protective sleeve 4 wrap the needle body 2 inside again to protect the needle body 2 and prevent the needle body 2 from puncturing medical staff. The first protective sleeve 3 and the second protective sleeve 4 are integrated with the needle body 2 through the handle 1, which facilitates the protection of the needle body 2 and can prevent the first protective sleeve 3 and the second protective sleeve 4 from being lost.

[0022] As a technical optimization of this utility model, a limiting groove 12 is provided inside the second protective sleeve 4, and a limiting plate 13 is slidably connected inside the limiting groove 12. A plug rod 14 is fixedly connected to the upper end face of the limiting plate 13, and a slot 16 matching the plug rod 14 is provided on the outer wall of the first protective sleeve 3.

[0023] In this embodiment: inserting the plug 14 into the slot 16 facilitates the fixing of the first protective sleeve 3 and the second protective sleeve 4.

[0024] As a technical optimization of this utility model, the outer wall of the insertion rod 14 is fitted with a spring 15 located between the lower end face of the limiting groove 12 and the limiting plate 13.

[0025] In this embodiment: Pulling the insertion rod 14 upward causes the limiting plate 13 to move upward along the limiting slide groove 12 and compress the spring 15. Releasing the insertion rod 14 causes it to move downward under the elastic force of the spring 15, thereby preventing the insertion rod 14 from coming out of the slot 16.

[0026] As a technical optimization of this utility model, a sealing gasket 10 is provided on the outer wall of the first protective sleeve 3 near the second protective sleeve 4, and a sealing groove 11 matching the sealing gasket 10 is opened on the outer wall of the second protective sleeve 4 near the first protective sleeve 3.

[0027] In this embodiment: by setting the sealing gasket 10 and the sealing groove 11, the first protective sleeve 3 and the second protective sleeve 4 can maintain good sealing performance, preventing foreign objects from contacting the needle body 2 and causing contamination to the needle body 2.

[0028] As a technical optimization of this utility model, the insertion rod 14 is U-shaped.

[0029] In this embodiment, by setting the insertion rod 14 to a U-shape, it is convenient to connect the first protective sleeve 3 and the second protective sleeve 4.

[0030] The working principle and usage process of this utility model are as follows: First, pull the insertion rod 14 upwards to disengage it from the slot 16. The insertion rod 14 drives the limiting plate 13 to move upwards along the limiting groove 12, compressing the spring 15. Then, rotate the first protective sleeve 3 and the second protective sleeve 4 along the connecting shaft 5 until they rotate to one side of the connecting tube 7, exposing the needle body 2. The first protective sleeve 3 and the second protective sleeve 4 clamp the connecting tube 7 inside the tube groove 8. Then, rotate the insertion rod 14 again to engage the insertion rod with the slot 16. After realignment, release the insertion rod 14. Under the elastic force of the spring 15, the insertion rod 14 is reinserted into the slot 16 to fix the first protective sleeve 3 and the second protective sleeve 4, and the puncture needle can then be used. After the puncture needle is used, reverse the operation so that the first protective sleeve 3 and the second protective sleeve 4 wrap the needle body 2 again to protect the needle body 2 and prevent the needle body 2 from puncturing medical staff. The first protective sleeve 3 and the second protective sleeve 4 are integrated with the needle body 2 through the handle 1, which facilitates the protection of the needle body 2 and prevents the first protective sleeve 3 and the second protective sleeve 4 from being lost.

[0031] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A puncture needle which is easy to use, comprising a hand-held portion (1), a needle body (2) and a connecting tube (7), characterized in that: The outer part of the needle body (2) is provided with a first protective sleeve (3) and a second protective sleeve (4), the upper and lower end faces of the first protective sleeve (3) and the second protective sleeve (4) are fixedly connected with connecting rods (6) near one end of the handheld part (1), the upper and lower end faces of the handheld part (1) are fixedly connected with two symmetrical connecting shafts (5), the other ends of the four connecting rods (6) are rotatably connected with the four connecting shafts (5), the opposite outer walls of the first protective sleeve (3) and the second protective sleeve (4) are provided with needle grooves (9) matched with the needle body (2), and the outer walls of the first protective sleeve (3) and the second protective sleeve (4) away from each other are provided with pipe grooves (8) matched with the connecting pipes (7).

2. The needle of claim 1, wherein: The inside of the second protective sleeve (4) is provided with a limiting sliding groove (12), the inside of the limiting sliding groove (12) is slidably connected with a limiting plate (13), the upper end face of the limiting plate (13) is fixedly connected with an insertion rod (14), and the outer wall of the first protective sleeve (3) is provided with an insertion groove (16) matched with the insertion rod (14).

3. A needle for easy use according to claim 2, wherein: The outer wall of the insertion rod (14) is sleeved with a spring (15) between the lower end face of the limiting sliding groove (12) and the limiting plate (13).

4. The needle of claim 1, wherein: The outer wall of the first protective sleeve (3) near the second protective sleeve (4) is provided with a sealing gasket (10), and the outer wall of the second protective sleeve (4) near the first protective sleeve (3) is provided with a sealing groove (11) matched with the sealing gasket (10).

5. The needle of claim 2 wherein: The insertion rod (14) is U-shaped.

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