CN116650757A - With special needle base for safety protection - Google Patents

Abstract

The invention discloses a special needle base with safety protection, which is used for the installation and protection of implanted special needles for drug administration. A needle-loading structure is clamped between the lugs, the upper fronts of the two bottom frames are fixedly connected with vertical plates, the upper ends of the two vertical plates are jointly fixedly connected with a horizontal plate, and the front ends of the horizontal plate are fixedly connected with a rebound frame. The lower end of the rebound frame is fixedly connected with a protective structure, and the protective structure is clamped between the two underframes. The inner and rear sides of the two underframes are fixedly connected with triangular blocks, and the two triangular blocks are respectively connected to the left and right sides of the protective structure. The end phase is fixed. The present invention makes it possible to surround the needle head after the special needle for implantable drug delivery is used, avoiding the direct and complete exposure of the needle head, and avoiding potential safety hazards caused by the needle head exposure. , It can also prevent the exposed needle from piercing the container and causing contamination leakage.

Description

With special needle base for safety protection

technical field

The invention relates to the technical field of medical devices, in particular to a special needle base with safety protection.

Background technique

The special needle for implantable drug delivery has an L-shaped structure compared with ordinary injection needles. When in use, the needle tip of the implantable drug delivery needle can be vertically implanted into the skin, while the drug delivery tube connected with the implantable drug delivery needle can be parallel to the skin surface, making it more convenient medication. However, when the traditional implantable drug delivery needle is pulled out of the skin for recycling, the needle tip is continuously exposed during the recovery process, which will bring certain safety risks. At the same time, the exposed needle tip is also easy to Puncture the container for the implanted drug delivery needle that needs to be recycled after use, causing pollution leakage. Therefore, we propose a special needle base with safety protection.

Contents of the invention

The main purpose of the present invention is to provide a special needle base with safety protection, which can effectively solve the problems in the background technology.

In order to achieve the above object, the technical scheme that the present invention takes is:

With a special needle base for safety protection, it is used for the installation and protection of the special needle for implantable drug delivery, including the bottom frame. There is a needle-loading structure between the two clips, and the special needle is inserted at the front end of the needle-loading structure. The upper ends of the two bottom frames are fixedly connected with vertical plates, and the upper ends of the two vertical plates are fixed together. A horizontal plate is connected, 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 protective structure, the protective structure is clamped between the two bottom frames, and the rear end of the protective structure extends to the rear of the bottom frame , the inner sides and rear sides of the two underframes are jointly fixedly connected with a connecting plate, the connecting plate is located above the protective structure, and the inner sides and rear sides of the two underframes are fixedly connected with triangular blocks, and the two triangular blocks are located on the connecting plate Below, two triangular blocks are respectively fixed to the left and right ends of the protective structure.

Preferably, the needle loading structure includes a sticking ear, the upper end of the sticking ear is fixedly connected with a needle barrel, and the front end of the sticking ear is fixedly connected with a needle groove, and the needle groove runs through the lower front end of the needle barrel and connects with the inner cavity of the needle barrel. connected to each other; the special needle is inserted in the front end of the needle holder and snapped into the needle slot, and the rear end of the needle holder extends to the back of the ear and is stuck between the two clips.

Preferably, the inner sides of the two lugs are provided with arc-shaped grooves matching the outer wall of the syringe; the lugs are located between the lugs and the riser and abut against the upper end of the bottom frame.

Preferably, the protection structure includes a needle guard, the rear end of the needle guard is fixedly connected with a trigger frame, the needle guard is provided with a needle guard slot that penetrates up and down, a needle block is provided in the needle guard slot, and the upper end of the needle guard A needle guard cover is fixedly connected, and the needle guard cover has a semi-cylindrical shell structure and is located above the needle guard groove; the lower end of the rebound frame is fixed on the upper front part of the needle guard rack.

Preferably, the needle guard frame and the trigger frame are arranged in a T shape, the needle guard frame is clamped between the two bottom frames and located under the connecting plate, and the triangular blocks are respectively fixed to the left and right ends of the needle guard frame; the trigger frame is located at rear of the chassis.

Preferably, the connection between the triangular block and the needle guard is a tearable connection.

Preferably, after the connection between the triangular block and the needle guard is torn off, the rebound frame rebounds, and during the rebound process, the rebound frame drives the protective structure to swing downward relative to the bottom frame.

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

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

The special needle for implantable drug administration in the present invention includes a connecting tube, an implant and a needle, wherein the connecting tube and the implant are integrally formed at right angles, and the needle is integrally formed at the other end of the implant; After taking medicine, pull the implant tube and needle away from the skin, then control the bottom frame and the trigger frame, and turn the trigger frame to keep the trigger frame away from the bottom frame, so that a tension is formed between the trigger frame and the bottom frame, breaking the triangular block and the bottom frame. Then, push the trigger frame towards the direction of the implant, so that the implant and the needle enter into the needle guard groove, and make the implant and the needle block, and then bypass the needle block, so that The implant tube and the needle head enter the area surrounded by the needle guard cover, and under the action of the needle stop block, the implant tube and the needle head remain in the area surrounded by the needle guard cover without breaking away.

Through the above, after the special needle for implantable drug delivery is used, the needle head can be protected to prevent the needle head from being directly and completely exposed to the outside, and the potential safety hazard caused by the needle head exposure can be avoided. At the same time, during the storage process , It can also prevent the exposed needle from piercing the container and causing contamination leakage.

Description of drawings

Fig. 1 is the overall structural diagram of the special needle base with safety protection of the present invention;

Fig. 2 is a partial structural schematic diagram of the special needle base with safety protection of the present invention;

Fig. 3 is a structural schematic diagram of the needle loading structure;

Fig. 4 is the structural representation of protective structure;

Figure 5 is a schematic view of the protective structure viewed from above;

Fig. 6 is a schematic structural view of the special needle of the present invention;

Fig. 7 is a schematic diagram of part of the structure of the present invention when the special needle is used for protection;

Fig. 8 is a schematic structural view of another embodiment of the present invention when the needle head of the special needle is exposed;

Fig. 9 is a schematic structural view of another embodiment of the present invention when the head of the special needle is surrounded by the needle guard cover.

In the figure: 1. Base frame; 2. Cartridge; 3. Needle-loading structure; 4. Special needle; 41. Connecting tube; 42. Implant tube; 43. Needle head; 5. Protective structure; 6. Rebound frame; 61. Bending groove; 7. Vertical plate; 8. Horizontal plate; 9. Connecting plate; 10. Triangular block; 31. Ear attachment; 32. Needle cylinder; 33. Needle card slot; 51. Needle guard; 511 . Needle guard slot; 52. Trigger frame; 53. Needle guard cover; 54. Needle block.

Detailed ways

In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "another end" The orientation or positional relationship indicated by etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, use a specific Azimuth configuration and operation, therefore, should not be construed as limiting the invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and should not be understood as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise specified and limited, the terms "installed", "set with", "connected", etc. should be understood in a broad sense, such as "connected", which may be a fixed connection , can also be detachably connected, or integrally connected; can be mechanically connected, can also be electrically connected; can be directly connected, can also be indirectly connected through an intermediary, and can be internal communication between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

As shown in Figure 1-7, it has a special needle base for safety protection, which is used for the installation and protection of the special needle 4 for implantable drug delivery. The special needle 4 for implantable drug delivery includes a connecting tube 41, an implant tube 42 and The needle 43 , wherein the connecting tube 41 and the implant tube 42 are integrally formed and form a right angle, and the needle 43 is integrally formed at the other end of the implant tube 42 . Needle base with special safety protection, including bottom frame 1, two bottom frames 1 are arranged symmetrically on the left and right, the upper and rear parts of the two bottom frames 1 are fixedly connected with tabs 2, and the clips between the two tabs 2 are fixed. There is a needle loading structure 3, the special needle 4 is inserted in the front end of the needle loading structure 3, the upper fronts of the two bottom frames 1 are fixedly connected with the vertical plate 7, and the upper ends of the two vertical plates 7 are fixedly connected with the horizontal plate 8. The front end of the horizontal plate 8 is fixedly connected to the rebound frame 6, and the lower end of the rebound frame 6 is fixedly connected to the protective structure 5. The protective structure 5 is clamped between the two chassis 1, and the rear end of the protective structure 5 extends to At the rear of the chassis 1, a connecting plate 9 is fixedly connected to the rear sides of the inner surfaces of the two chassis 1, and the connecting plate 9 is located above the protective structure 5, and a triangular block is fixedly connected to the rear sides of the inner surfaces of the two chassis 1 10. Two triangular blocks 10 are located below the connecting plate 9, and the two triangular blocks 10 are respectively fixed to the left and right ends of the protective structure 5.

As a further description of the above-mentioned technical solution, the needle loading structure 3 includes a sticking ear 31, the upper end of the sticking ear 31 is fixedly connected with a needle cylinder 32, and the front end of the sticking ear 31 is fixedly connected with a card slot 33, and the card slot 33 runs through the needle. The lower part of the front end of the cylinder 32 communicates with the inner cavity of the needle cylinder 32; the special needle 4 is inserted in the front end of the needle cylinder 32 and snapped into the needle slot 33, and the rear end of the needle cylinder 32 extends to the ear 31. The rear is also clamped between the two lugs 2 .

The inner sides of the two lugs 2 are provided with arc-shaped grooves that match the outer wall of the syringe 32, so that the syringe 32 can be easily inserted between the two lugs 2 and installed to improve stability; The ear 31 is located between the lug 2 and the riser 7 and abuts against the upper end of the base frame 1. The front and rear width of the ear 31 is smaller than the front and rear width of the base frame 1, so that the special needle base with safety protection is attached to the base with medical adhesive tape. When attached to the surface of the skin, the medical tape can be attached to the ear 31 and the bottom frame 1 to form a stepped fit, which facilitates the attachment of the medical tape and improves the firmness of the attachment. At the same time, it is convenient to operate the bottom frame separately 1 and the protective structure 5 are convenient to move the protective structure 5 to separate the protective structure 5 from the triangular block 10.

As a further description of the above technical solution, the protective structure 5 includes a needle guard 51, the rear end of the needle guard 51 is fixedly connected with a trigger frame 52, and the needle guard 51 is provided with a needle guard 511 that penetrates up and down. A needle block 54 is arranged inside, and the upper end of the needle guard 51 is fixedly connected with a needle guard cover 53. The position of the needle guard 54 corresponds to the position of the needle guard 53, and the implant tube 42 and the needle head 43 can enter the needle guard groove 511. , and bypass the needle block 54 into the area surrounded by the needle guard 53, and under the action of the needle block 54, the implant tube 42 and the needle 43 will not or are not easy to get out of the area surrounded by the needle guard 53 The inside is detached to form a long-term effective enclosure for the needle 43. The needle guard cover 53 has a semi-cylindrical shell structure and is located above the needle guard slot 511 ;

The needle guard frame 51 and the trigger frame 52 are arranged in a T shape, which can facilitate the operation of the trigger frame 52 and at the same time, facilitate the sticking of the medical adhesive tape on the trigger frame 52 and the skin. The needle guard 51 is clamped between the two base frames 1 and located below the connecting plate 9 , the triangular blocks 10 are respectively fixed to the left and right ends of the needle guard 51 ; the trigger frame 52 is located behind the base 1 .

The rear end of the rebound frame 6 is provided with a bending groove 61, and the connection between the triangular block 10 and the needle guard frame 51 is a tearable connection. After tearing off the connection between the triangular block 10 and the needle guard frame 51, the rebound frame 6 rebounds, and the rebound frame 6 drives the protective structure 5 to swing downwards and forwards relative to the bottom frame 1 during the rebound process, so that the protective structure 5 can be moved forward. The structure 5 is pushed towards the implant 42 and the needle 43 to enclose the implant 42 and the needle 43 .

It should be noted that the present invention has a special needle base with safety protection. When administering medication, the connecting tube 41 is inserted into the syringe 32 and connected with the medication tube, and the implant tube 42 is stuck in the needle slot. 33, then, make the needle tube 32 be stuck between the two buckles 2, make the implant tube 42 and the needle 43 pass between the two vertical plates 7, and pass through the needle guard groove 511, so that the ear 31 abuts against the bottom frame 1, then, the implant tube 42 and the needle 43 are implanted into the skin, so that the bottom frame 1 is in contact with the skin, then, stick to the ear 31, the bottom frame 1 with medical adhesive tape and make the medical adhesive tape and The skin is connected, and the special needle base with safety protection and the special needle 4 are attached on the skin.

After completing the administration, take off the medical tape, pull the implant tube 42 and the needle 43 away from the skin, then control the bottom frame 1 and the trigger frame 52, and move the trigger frame 52 so that the trigger frame 52 is away from the bottom frame 1, so that A pulling force is formed between the trigger frame 52 and the bottom frame 1, and the connection between the triangular block 10 and the needle guard frame 51 is broken, and then, the trigger frame 52 is pushed toward the direction of the implant tube 42, so that the implant tube 42 and the needle head 43 enter into the guard. In the needle groove 511, and make the implant tube 42 and the needle block 54, then bypass the needle block 54, so that the implant tube 42 and the needle head 43 enter the area surrounded by the needle guard cover 53, as shown in Figure 7 Shown; under the effect of the needle block 54, the implant tube 42 and the needle 43 remain in the area surrounded by the needle guard cover 53 without breaking away.

Through the above, after the special needle 4 for implantable drug delivery is used, the needle head 43 can be surrounded to prevent the needle head 43 from being directly and completely exposed to the outside, and the potential safety hazard caused by the exposure of the needle head 43 can be avoided. At the same time, During the storage process, it is also possible to prevent the exposed needle 43 from piercing the container and causing contamination leakage.

The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above. Those skilled in the industry should understand that the present invention is not limited by the above-mentioned embodiments. What are described in the above-mentioned embodiments and the description only illustrate the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will also have Variations and improvements are possible, which fall within the scope of the claimed invention. The protection scope of the present invention is defined by the appended claims and their equivalents.

Claims (8)

1. With a special needle base for safety protection, it is used for the installation and protection of the special needle (4) for implantable drug delivery, including the chassis (1), which is characterized in that: the chassis (1) is provided with two and It is symmetrically arranged on the left and right, and the upper rear parts of the two underframes (1) are fixedly connected with tabs (2), and a needle-mounting structure (3) is clamped between the two tabs (2). The special needle (4) is inserted in the front end of the needle loading structure (3), the upper fronts of the two underframes (1) are fixedly connected with vertical plates (7), and the two vertical plates ( 7) are fixedly connected with a horizontal plate (8) at the upper end, the front end of the horizontal plate (8) is fixedly connected with a rebound frame (6), and the lower end of the rebound frame (6) is fixedly connected with a protective structure (5 ), the protective structure (5) is clamped between the two underframes (1), the rear end of the protective structure (5) extends to the rear of the underframe (1), and the two underframes The rear side of the inner side of (1) is jointly fixedly connected with a connecting plate (9), and the connecting plate (9) is located above the protective structure (5), and the inner side rear side of the two underframes (1) Both are fixedly connected with triangular blocks (10), and the two triangular blocks (10) are all located under the connecting plate (9), and the two triangular blocks (10) are connected with the protective structure (5) respectively. The left and right ends are fixed. 2. The special needle base with safety protection according to claim 1, characterized in that: the needle loading structure (3) includes a sticking ear (31), and the upper end of the sticking ear (31) is fixedly connected with a needle loading cylinder (32), the front end of the attached ear (31) is fixedly connected with a needle slot (33), and the needle slot (33) runs through the lower front end of the needle-loading cylinder (32) and is connected with the needle-loading cylinder The inner cavity of (32) is connected; the special needle (4) is inserted in the front end of the described needle cylinder (32) and snapped into the needle slot (33), the rear end of the needle cylinder (32) It extends to the back of the ear (31) and is clamped between the two lugs (2). 3. The special needle base with safety protection according to claim 2, characterized in that: the inner side surfaces of the two lugs (2) are provided with an arc matching the outer wall surface of the needle holder (32). shaped groove; the lug (31) is located between the lug (2) and the riser (7) and abuts against the upper end of the chassis (1). 4. The special needle base with safety protection according to claim 1, characterized in that: the protective structure (5) includes a needle guard (51), and the rear end of the needle guard (51) is fixedly connected with a trigger frame (52), the needle guard (51) is provided with a needle guard (511) that penetrates up and down, and a needle block (54) is arranged in the needle guard (511), and the needle guard ( 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 rebound frame (6) The lower end is fixed on the upper front part of the needle guard (51). 5. The special needle base with safety protection according to claim 4, characterized in that: the needle guard (51) and the trigger rack (52) are arranged in a T shape, and the needle guard (51) is clamped on the Between the two underframes (1) and below the connecting plate (9), the triangular block (10) is fixed to the left and right ends of the needle guard (51) respectively; the trigger frame ( 52) is located at the rear of the chassis (1). 6. The special needle base with safety protection according to claim 5, characterized in that: the connection between the triangular block (10) and the needle guard (51) is a tearable connection. 7. The special needle base with safety protection according to claim 6, characterized in that: after the connection between the triangular block (10) and the needle guard (51) is torn off, the rebound frame (6) rebounds, The rebounding frame (6) drives the protective structure (5) to swing downwards and forwards relative to the bottom frame (1) during the rebounding process. 8. The special needle base with safety protection according to claim 1, characterized in that: the rear end of the rebound frame (6) is provided with a bending groove (61).