Special needle base with safety protection

Abstract

The application discloses a special needle base with safety protection, which is used for the installation and protection of a special needle for implantable drug delivery. Two chassis are arranged, the rear upper ends of the two chassis are fixedly connected with clamping ears, a needle mounting structure is clamped between the two clamping ears, the front upper ends of the two chassis are fixedly connected with vertical plates, the upper ends of the two vertical plates are fixedly connected with a horizontal plate, the front end of the horizontal plate is fixedly connected with a rebound frame, the lower end of the rebound frame is fixedly connected with a protection structure, the protection structure is clamped between the two chassis, the inner side rear sides of the two chassis are fixedly connected with triangular blocks, and the two triangular blocks are fixed with the left and right ends of the protection structure. The application can protect the needle after the special needle for implantable drug delivery is used, avoid the direct and complete exposure of the needle, avoid the safety hazard caused by the exposure of the needle, and avoid the pollution and leakage caused by the exposure of the needle during the storage process.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to a needle base with safety protection. Background Technology

[0002] Implantable drug delivery needles, compared to ordinary injection needles, have an L-shaped structure. During use, the needle tip can be vertically implanted into the skin, while the connected delivery tube conforms parallel to the skin surface, making drug delivery more convenient. However, when traditional implantable drug delivery needles are removed from the skin for recycling, the needle tip remains exposed, posing a safety risk. Furthermore, the exposed needle tip can easily puncture the container holding the used needle, causing contamination and leakage. Therefore, we propose a dedicated needle base with safety protection. Summary of the Invention

[0003] The main objective of this invention is to provide a special needle base with safety protection, which can effectively solve the problems in the background art.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0005] This device features a dedicated needle base with safety protection for the installation and protection of implantable drug delivery needles. It includes two base frames arranged symmetrically. Each base frame has a locking lug at its upper rear, with a needle insertion structure positioned between the lugs. The dedicated needle is inserted into the front end of the needle insertion structure. Vertical plates are fixedly connected to the upper front of each base frame, and a horizontal plate is fixedly connected to the upper end of both vertical plates. A spring-loaded frame is fixedly connected to the front end of the horizontal plate, and a protective structure is fixedly connected to the lower end of the spring-loaded frame. The protective structure is positioned between the two base frames, with its rear end extending to the rear of the base frames. A connecting plate is fixedly connected to the rear inner sides of both base frames, positioned above the protective structure. Triangular blocks are fixedly connected to the rear inner sides of both base frames, positioned below the connecting plate, and fixed to the left and right ends of the protective structure, respectively.

[0006] Preferably, the needle loading structure includes an ear, the upper end of which is fixedly connected to a syringe barrel, and the front end of which is fixedly connected to a needle-holding groove. The needle-holding groove passes through the lower front end of the syringe barrel and communicates with the inner cavity of the syringe barrel. A special needle is inserted into the front end of the syringe barrel and is engaged in the needle-holding groove. The rear end of the syringe barrel extends to the rear of the ear and is engaged between the two ear clips.

[0007] Preferably, the inner sides of both ear clips are provided with arc-shaped grooves that mate with the outer wall of the syringe; the tab is located between the ear clips and the vertical plate and abuts against the upper end of the base frame.

[0008] Preferably, the protective structure includes a needle guard, a trigger frame is fixedly connected to the rear end of the needle guard, a needle guard groove that runs vertically through the needle guard, a needle stop block is provided in the needle guard groove, a needle guard cover is fixedly connected to the upper end of the needle guard, the needle guard cover is a semi-cylindrical shell structure and is located above the needle guard groove; the lower end of the rebound frame is fixed to the front of the upper end of the needle guard.

[0009] Preferably, the needle guard and the trigger frame are arranged in a T-shape. The needle guard is locked between the two base frames and located below the connecting plate. The triangular blocks are fixed to the left and right ends of the needle guard respectively. The trigger frame is located at the rear of the base frame.

[0010] Preferably, the connection between the triangular block and the needle holder is a tear-away connection.

[0011] Preferably, after the connection between the triangular block and the protective pin holder is broken, the rebound frame rebounds, and during the rebound process, the protective structure swings downward and forward relative to the base frame.

[0012] Preferably, the rear end of the rebound frame is provided with a bending groove.

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

[0014] The implantable drug delivery needle of this invention includes a connecting tube, an implantation tube, and a needle. The connecting tube and the implantation tube are integrally formed at a right angle, and the needle is integrally formed at the other end of the implantation tube. After drug delivery, the implantation tube and the needle are withdrawn from the skin. Then, the base frame and the trigger frame are controlled, and the trigger frame is moved away from the base frame, creating a tension between the trigger frame and the base frame, breaking the connection between the triangular block and the needle guard. Then, the trigger frame is pushed towards the implantation tube, allowing the implantation tube and the needle to enter the needle guard groove and connect with the needle stop block. Then, the implantation tube and the needle are moved around the needle stop block and enter the area enclosed by the needle guard cover. Under the action of the needle stop block, the implantation tube and the needle remain within the area enclosed by the needle guard cover and do not detach.

[0015] The above methods allow the needle tip to be protected after use, preventing it from being directly and completely exposed and thus avoiding safety hazards. Furthermore, during storage, it also prevents exposed needle tips from puncturing the container and causing contamination or leakage. Attached Figure Description

[0016] Figure 1 This is an overall structural diagram of the invention with a special needle base for safety protection;

[0017] Figure 2 This is a partial structural diagram of the safety protection needle base of the present invention;

[0018] Figure 3 This is a schematic diagram of the needle loading structure;

[0019] Figure 4 This is a schematic diagram of the protective structure;

[0020] Figure 5 A schematic diagram of the protective structure from below;

[0021] Figure 6 This is a schematic diagram of the structure of the special needle described in this invention;

[0022] Figure 7 This is a partial structural diagram of the present invention when using a protective needle;

[0023] Figure 8 This is a schematic diagram of the structure of another embodiment of the present invention when the special needle tip is exposed;

[0024] Figure 9 This is a schematic diagram of another embodiment of the present invention when the special needle tip is protected by a needle cover.

[0025] In the diagram: 1. Base frame; 2. Clamping ear; 3. Needle loading structure; 4. Special needle; 41. Connecting tube; 42. Implantation tube; 43. Needle tip; 5. Protective structure; 6. Rebound frame; 61. Bending groove; 7. Vertical plate; 8. Horizontal plate; 9. Connecting plate; 10. Triangular block; 31. Clamping ear; 32. Syringe; 33. Needle clamping groove; 51. Needle guard frame; 511. Needle guard groove; 52. Trigger frame; 53. Needle guard cover; 54. Needle stop block. Detailed Implementation

[0026] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0027] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and for 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. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0029] like Figure 1-7 As shown, a special needle base with safety protection is used for the installation and protection of the implantable drug delivery needle 4. The implantable drug delivery needle 4 includes a connecting tube 41, an implantation tube 42, and a needle tip 43. The connecting tube 41 and the implantation tube 42 are integrally formed and at a right angle, and the needle tip 43 is integrally formed at the other end of the implantation tube 42. The safety protection needle base includes a base frame 1, which has two symmetrically arranged base frames. Each base frame 1 has a locking lug 2 fixedly connected to its upper rear end. A needle loading structure 3 is engaged between the two locking lugs 2. A special needle 4 is inserted into the front end of the needle loading structure 3. Each base frame 1 has a vertical plate 7 fixedly connected to its upper front end. A horizontal plate 8 is fixedly connected to the upper end of the two vertical plates 7. A spring return frame 6 is fixedly connected to the front end of the horizontal plate 8. A protective structure 5 is fixedly connected to the lower end of the spring return frame 6. The protective structure 5 is engaged between the two base frames 1. The rear end of the protective structure 5 extends to the rear of the base frame 1. A connecting plate 9 is fixedly connected to the rear inner side of the two base frames 1. The connecting plate 9 is located above the protective structure 5. Triangular blocks 10 are fixedly connected to the rear inner side of the two base frames 1. Both triangular blocks 10 are located below the connecting plate 9. The two triangular blocks 10 are fixed to the left and right ends of the protective structure 5, respectively.

[0030] As a further explanation of the above technical solution, the needle loading structure 3 includes an ear 31, the upper end of which is fixedly connected to a syringe barrel 32, and the front end of the ear 31 is fixedly connected to a needle-holding groove 33. The needle-holding groove 33 passes through the lower front end of the syringe barrel 32 and communicates with the inner cavity of the syringe barrel 32. A special needle 4 is inserted into the front end of the syringe barrel 32 and is inserted into the needle-holding groove 33. The rear end of the syringe barrel 32 extends to the rear of the ear 31 and is held between the two ear 2.

[0031] Both ear clips 2 have arc-shaped grooves on their inner sides that mate with the outer wall of the syringe 32, facilitating insertion of the syringe 32 between the two ear clips 2 and improving installation stability. The tab 31 is located between the ear clip 2 and the vertical plate 7 and abuts against the upper end of the base frame 1. The front-to-back width of the tab 31 is smaller than that of the base frame 1, allowing the medical tape to adhere to the tab 31 and the base frame 1 when the medical tape is applied to the skin surface, forming a stepped fit. This facilitates the application of the medical tape and improves its adhesion. At the same time, it allows for easy operation of the base frame 1 and the protective structure 5, and easy prying of the protective structure 5 to detach it from the triangular block 10.

[0032] As a further explanation of the above technical solution, the protective structure 5 includes a needle guard 51, with a trigger frame 52 fixedly connected to the rear end of the needle guard 51. The needle guard 51 has a vertically penetrating needle guard groove 511, and a needle-blocking block 54 is installed within the needle guard groove 511. A needle cover 53 is fixedly connected to the upper end of the needle guard 51. The needle-blocking block 54 and the needle cover 53 are positioned correspondingly. The implantation tube 42 and the needle 43 can enter the needle guard groove 511 and bypass the needle-blocking block 54 to enter the area enclosed by the needle cover 53. Under the action of the needle-blocking block 54, the implantation tube 42 and the needle 43 will not or are difficult to detach from the area enclosed by the needle cover 53, forming a long-term effective protection for the needle 43. The needle cover 53 is a semi-cylindrical shell structure located above the needle guard groove 511; the lower end of the rebound frame 6 is fixed to the upper front part of the needle guard 51.

[0033] The needle holder 51 and the trigger holder 52 are arranged in a T-shape, which facilitates the operation of the trigger holder 52 and allows for easy application of medical tape to the trigger holder 52 and the skin. The needle holder 51 is secured between the two base frames 1 and located below the connecting plate 9, with triangular blocks 10 fixed to the left and right ends of the needle holder 51 respectively; the trigger holder 52 is located behind the base frame 1.

[0034] The rear end of the rebound frame 6 has a bending groove 61, and the connection between the triangular block 10 and the needle guard 51 is a tearable connection. After the connection between the triangular block 10 and the needle guard 51 is torn off, the rebound frame 6 rebounds. During the rebound process, the rebound frame 6 drives the protective structure 5 to swing downward and forward relative to the base frame 1, thereby pushing the protective structure 5 towards the implantation tube 42 and the needle 43 to protect the implantation tube 42 and the needle 43.

[0035] It should be noted that this invention is a needle base with safety protection. When administering medication, the connecting tube 41 is inserted into the syringe 32 and connected to the medication tube. The implantation tube 42 is locked in the needle slot 33. Then, the syringe 32 is locked between the two ear clips 2, and the implantation tube 42 and the needle 43 pass through the two vertical plates 7 and through the needle protection slot 511, so that the ear clip 31 abuts against the base frame 1. Then, the implantation tube 42 and the needle 43 are implanted into the skin, so that the base frame 1 contacts the skin. Then, medical tape is used to stick to the ear clip 31 and the base frame 1 and to connect the medical tape to the skin, so that the needle base with safety protection and the special needle 4 are attached to the skin.

[0036] After administration, remove the medical tape and pull the implantation tube 42 and needle 43 away from the skin. Then, control the base frame 1 and trigger frame 52, and bend the trigger frame 52 away from the base frame 1 to create tension between the trigger frame 52 and the base frame 1, breaking the connection between the triangular block 10 and the needle guard 51. Then, push the trigger frame 52 towards the implantation tube 42, allowing the implantation tube 42 and needle 43 to enter the needle guard groove 511, and to make the implantation tube 42 contact the needle stop block 54. Then, bypass the needle stop block 54 and allow the implantation tube 42 and needle 43 to enter the area enclosed by the needle guard cover 53. Figure 7 As shown, under the action of the needle-blocking block 54, the implantation tube 42 and the needle 43 remain within the area enclosed by the needle cover 53 without detaching.

[0037] Through the above, after the implantable drug delivery needle 4 is used, the needle tip 43 can be protected, preventing the needle tip 43 from being directly and completely exposed to the outside, thus avoiding the safety hazards caused by the exposure of the needle tip 43. At the same time, during the storage process, it can also prevent the exposed needle tip 43 from puncturing the container and causing pollution leakage.

[0038] The foregoing has shown and described 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 embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A special needle base with safety protection, used for installation and protection of a special needle (4) for implantable drug delivery, comprising a chassis (1), characterized in that: The bottom frame (1) is provided with two and is symmetrically arranged, the upper end rear of two bottom frame (1) is fixedly connected with the card ear (2), the card ear (2) is provided with needle structure (3) between two, the special needle (4) is inserted in the front end of needle structure (3), the upper end front of two bottom frame (1) is fixedly connected with the vertical plate (7), the upper end of two vertical plate (7) is fixedly connected with the transverse plate (8), the front end of transverse plate (8) is fixedly connected with the rebound frame (6), the lower end of rebound frame (6) is fixedly connected with the protection structure (5), the protection structure (5) is arranged between two bottom frame (1), the rear end of protection structure (5) extends to the rear of bottom frame (1), the inner side rear of two bottom frame (1) is fixedly connected with the connecting plate (9), the connecting plate (9) is located above the protection structure (5), the inner side rear of two bottom frame (1) is fixedly connected with the triangular block (10), two triangular block (10) are located below the connecting plate (9), two triangular block (10) are fixed with the left and right ends of protection structure (5) respectively; The needle structure (3) includes an ear (31), the upper end of the ear (31) is fixedly connected with the needle mounting cylinder (32), the front end of the ear (31) is fixedly connected with the needle clamping groove (33), the needle clamping groove (33) penetrates the front end lower part of the needle mounting cylinder (32) and is communicated with the inner cavity of the needle mounting cylinder (32); the special needle (4) is inserted into the front end of the needle mounting cylinder (32) and clamped into the needle clamping groove (33), the rear end of the needle mounting cylinder (32) extends to the rear of the ear (31) and is clamped between two card ears (2); The inner side of two card ears (2) is provided with an arc-shaped groove matched with the outer wall surface of the needle mounting cylinder (32); the ear (31) is located between the card ear (2) and the vertical plate (7) and abuts against the upper end of the bottom frame (1); The protection structure (5) includes a needle guard frame (51), the rear end of the needle guard frame (51) is fixedly connected with the trigger frame (52), the needle guard frame (51) is provided with a needle guard groove (511) penetrating upward and downward, the needle guard groove (511) is provided with a needle blocking block (54), the upper end of the needle guard frame (51) is fixedly connected with a needle guard cover (53), the needle guard cover (53) is a semi-cylindrical shell structure and is located above the needle guard groove (511); the lower end of the rebound frame (6) is fixed to the upper end front of the needle guard frame (51); The needle guard frame (51) and the trigger frame (52) are T-shaped, the needle guard frame (51) is arranged between two bottom frame (1) and below the connecting plate (9), the triangular block (10) is fixed with the left and right ends of the needle guard frame (51) respectively; the trigger frame (52) is located behind the bottom frame (1).

2. The safety shielded specialty needle hub of claim 1, wherein: The connection between the triangular block (10) and the needle guard frame (51) is a tearable connection.

3. The safety shielded specialty needle hub of claim 1, wherein: After the connection between the triangular block (10) and the needle guard (51) is torn, the rebound frame (6) rebounds, and the rebound frame (6) drives the protection structure (5) to swing downward and forward relative to the bottom frame (1) in the rebounding process.

4. The safety shielded specialty needle hub of claim 1, wherein: A bending groove (61) is arranged at the rear end of the rebound frame (6).

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