A needle pulling anti-stabbing auxiliary device for a port

Abstract

The utility model relates to medical instrument technical field discloses a kind of infusion port needle withdrawal anti-stab auxiliary appliance, including hollow board, the inside of hollow board is movably connected with handle, the inside of handle is equipped with horizontal groove. The utility model is by being provided with handle, fixing frame, rubber cushion, limit rod and no. When the operator pulls two handles outward through horizontal groove, it will make handle under the limiting effect of limit rod, horizontal opposite movement occurs, and make no. Spring is in compressed state, so that two fixing frames drive two rubber cushions to occur opposite movement, when two handles are loosened, the elastic force of two no. Spring is under, so that two handles drive two rubber cushions to reset, so as to realize the fixing effect to infusion port, avoid personnel to press fixed with hand, so that hand is stung by butterfly wing needle in subsequent needle withdrawal process.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and more specifically, to an auxiliary device for preventing needle puncture injuries during port-of-care treatment. Background Technology

[0002] A port-a-catheter is a closed venous infusion system that can be fully implanted into the body. It is also known as a venous port-a-catheter, a fully implantable central venous catheter system, or a fully implantable drug infusion device.

[0003] The main function of a port-a-cath is to provide a safe, convenient, aesthetically pleasing, long-term, and blood vessel-protecting vascular access for patients who require long-term or frequent intravenous infusions. It is suitable for patients who need long-term chemotherapy drugs, long-term parenteral nutrition, or long-term infusions for chronic diseases. Compared with conventional central venous catheterization, port-a-cath has significant advantages such as safer infusion, longer placement time, lower complication rate, and lower risk of infection.

[0004] When using an infusion port, operators often need to press and hold the port in place with their hands and use the accompanying butterfly needle for infusion. However, the butterfly needle is not a straight needle but a curved needle with barbs. Therefore, during needle removal, the curved needle with barbs can easily prick the operator's fingers, and may even cause blood contact between the patient and the operator. Therefore, improvements are needed. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology, this utility model provides an auxiliary device for preventing needle puncture injuries when removing needles from an infusion port, which has the advantage of preventing needle puncture injuries.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an auxiliary device for preventing needle puncture during infusion port removal, comprising a hollow plate, a handle movably connected inside the hollow plate, a transverse groove formed on the inner side of the handle, a fixing frame fixedly connected to the right side of the handle, a rubber pad movably connected inside the fixing frame, a limiting rod fixedly connected to the inner cavity of the hollow plate, the outer surface of the limiting rod movably sleeved with the inner cavity of the handle, a first spring movably sleeved on the outer surface of the limiting rod, one end of the first spring fixedly connected to the outer surface of the handle, and the other end of the first spring fixedly connected to the inner cavity of the hollow plate.

[0007] As a preferred embodiment of this utility model, a rotating rod is movably sleeved on the front of the fixing frame, the other end of the rotating rod passes through the fixing frame and extends into the inner cavity of the fixing frame and is fixedly sleeved with a rotating plate, and a round rod is fixedly connected to the back of the rotating plate.

[0008] As a preferred embodiment of this utility model, a sleeve rod is movably connected to the outer surface of the round rod, a connecting rod is fixedly connected to the inner side of the sleeve rod, a rectangular block is fixedly connected to the left side of the connecting rod, a connecting block is movably sleeved on the outer surface of the rectangular block, the top of the connecting block is fixedly connected to the bottom of the rubber pad, and the outer surface of the connecting block is movably connected to the interior of the fixing frame.

[0009] As a preferred embodiment of this utility model, the inner cavity of the fixing frame is fixedly connected to a limiting plate, the inside of the limiting plate is movably sleeved with the inside of the connecting rod, and the inner surface of the limiting plate is smooth.

[0010] As a preferred technical solution of this utility model, a fixing plate located on the right side of the rotating rod is fixedly installed on the front of the fixing frame. A pull rod is movably sleeved inside the fixing plate. The left end of the pull rod passes through the fixing plate and extends to the outside of the fixing plate and is fixedly connected to a locking block. A gear is meshed with the outer surface of the locking block. The outer surface of the rotating rod inside the gear is fixedly sleeved.

[0011] As a preferred embodiment of this utility model, a second spring is movably sleeved on the outer surface of the pull rod. The left end of the second spring is fixedly connected to the right side of the locking block, and the right side of the second spring is fixedly connected to the left side of the fixing plate.

[0012] As a preferred embodiment of this utility model, the number of grips is two, the two grips are the same size, and the outer surfaces of the two grips are smooth.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] This invention utilizes a combination of handles, a fixing frame, rubber pads, a limiting rod, and a first spring. When the operator pulls the two handles outward through the transverse groove, the handles move horizontally in opposite directions under the limiting rod's control, compressing the first spring. This causes the two fixing frames to move in opposite directions along with the two rubber pads. When the two handles are released, the elastic force of the two first springs causes the handles and rubber pads to return to their original positions, thus securing the infusion port and preventing personnel from pressing it down with their hands, which could lead to hand injuries from the butterfly needle during subsequent needle removal. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a cross-sectional view of the top of the present invention;

[0017] Figure 3This is a cross-sectional view of the front of the fixing frame of this utility model;

[0018] Figure 4 This is a cross-sectional view of the side of the fixing frame of this utility model;

[0019] Figure 5 for Figure 2 A magnified schematic diagram of the structure at point A in the middle.

[0020] In the diagram: 1. Hollow plate; 2. Handle; 3. Horizontal groove; 4. Fixing frame; 5. Rubber pad; 6. Limiting rod; 7. Spring No. 1; 8. Rotating rod; 9. Rotating plate; 10. Round rod; 11. Sleeve rod; 12. Connecting rod; 13. Rectangular block; 14. Connecting block; 15. Fixing plate; 16. Pull rod; 17. Locking block; 18. Spring No. 2; 19. Gear; 20. Limiting plate. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] like Figures 1 to 5 As shown, this utility model provides an auxiliary tool for preventing needle puncture during infusion port removal, including a hollow plate 1. A handle 2 is movably connected inside the hollow plate 1. A transverse groove 3 is formed on the inner side of the handle 2. A fixing frame 4 is fixedly connected to the right side of the handle 2. A rubber pad 5 is movably connected inside the fixing frame 4. A limiting rod 6 is fixedly connected to the inner cavity of the hollow plate 1. The outer surface of the limiting rod 6 is movably sleeved with the inner part of the handle 2. A first spring 7 is movably sleeved on the outer surface of the limiting rod 6. One end of the first spring 7 is fixed to the outer surface of the handle 2. The other end of the first spring 7 is fixedly connected to the inner cavity of the hollow plate 1. When the operator pulls the two handles 2 outward through the transverse groove 3, the handles 2 will move horizontally in opposite directions under the limiting action of the limiting rod 6, and the first spring 7 will be in a compressed state. This will cause the two fixed brackets 4 to move in opposite directions together with the two rubber pads 5. When the two handles 2 are released, the two handles 2 will move the two rubber pads 5 back to their original position under the elastic force of the two first springs 7.

[0023] The front of the fixed frame 4 is movably sleeved with a rotating rod 8. The other end of the rotating rod 8 passes through the fixed frame 4 and extends into the inner cavity of the fixed frame 4, and is fixedly sleeved with a rotating plate 9. The back of the rotating plate 9 is fixedly connected with a round rod 10. When the operator rotates the rotating rod 8, the rotating rod 8 will cause the rotating plate 9 and the round rod 10 to start rotating together.

[0024] The outer surface of the round rod 10 is movably connected to the sleeve rod 11, the inner side of the sleeve rod 11 is fixedly connected to the connecting rod 12, the left side of the connecting rod 12 is fixedly connected to the rectangular block 13, the outer surface of the rectangular block 13 is movably fitted with the connecting block 14, the top of the connecting block 14 is fixedly connected to the bottom of the rubber pad 5, and the outer surface of the connecting block 14 is movably connected to the inside of the fixing frame 4. When the round rod 10 rotates, it will squeeze and push the sleeve rod 11, and the two sleeve rods 11 will drive the two connecting rods 12 and the two rectangular blocks 13 to move in opposite directions, eventually causing the two rectangular blocks 13 to detach from the inside of the connecting block 14.

[0025] The inner cavity of the fixed frame 4 is fixedly connected to the limiting plate 20. The inside of the limiting plate 20 is movably connected to the inside of the connecting rod 12. The inner surface of the limiting plate 20 is smooth. Due to the limiting effect of the limiting plate 20, the connecting rod 12 will drive the rectangular block 13 to move horizontally left and right. Furthermore, due to the smooth design of the limiting plate 20, the movement of the connecting rod 12 inside the limiting plate 20 is smoother.

[0026] The fixing plate 15 located on the right side of the rotating rod 8 is fixedly installed on the front of the fixing frame 4. A pull rod 16 is movably sleeved inside the fixing plate 15. The left end of the pull rod 16 passes through the fixing plate 15 and extends to the outside of the fixing plate 15 and is fixedly connected to a locking block 17. A gear 19 is meshed on the outer surface of the locking block 17. The outer surface of the rotating rod 8 inside the gear 19 is fixedly sleeved. When the pull rod 16 is pulled, the pull rod 16 will cause the locking block 17 to move horizontally to the right under the limiting effect of the fixing plate 15, and cause the locking block 17 to disengage from the outer surface of the gear 19, thereby releasing the fixing effect on the gear 19.

[0027] Among them, the outer surface of the pull rod 16 is movably sleeved with a second spring 18. The left end of the second spring 18 is fixedly connected to the right side of the locking block 17, and the right side of the second spring 18 is fixedly connected to the left side of the fixing plate 15. Due to the design of the second spring 18, the locking block 17 has a good reset effect in the subsequent movement process, ensuring that the locking block 17 can always be in contact with the gear 19.

[0028] The grip 2 consists of two identical grips with smooth outer surfaces. This design allows the grip 2 to move more smoothly inside the hollow plate 1, reduces friction between the grip 2 and the hollow plate 1, and improves the service life of the grip 2.

[0029] Working principle and usage process of this utility model:

[0030] The operator pulls the two handles 2 outward through the transverse groove 3, causing the two handles 2 to move in opposite directions horizontally under the limiting action of the limiting rod 6. The two rubber pads 5 are then placed on both sides of the infusion port. The operator then releases the handles 2. At this time, due to the elastic force of the first spring 7, the two handles 2 will move in opposite directions horizontally under the limiting action of the limiting rod 6, thereby achieving the effect of fixing the infusion port and avoiding the situation where the operator presses the port with their hands, which could lead to hand injuries from the butterfly needle during subsequent needle removal.

[0031] After each infusion, the rubber pad 5 comes into contact with the patient's skin, becoming contaminated and requiring replacement. First, pulling the lever 16 causes the locking block 17 to move horizontally to the right under the constraint of the fixing plate 15, disengaging it from the outer surface of the gear 19 and releasing its fixation. Then, rotating the rotating rod 8 causes the rotating plate 9 and the round rod 10 to rotate, pushing the sleeve rod 11. The sleeve rod 11 then moves the connecting rod 12 horizontally to the right under the constraint of the limiting plate 20, ultimately disengaging the two rectangular blocks 13 from the connecting block 14 and releasing its fixation. This allows operators to quickly disassemble and replace the rubber pad 5, improving efficiency.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An auxiliary device for preventing needle stick injuries during port-of-care treatment, comprising a hollow plate (1), characterized in that: A handle (2) is movably connected inside the hollow plate (1). A transverse groove (3) is provided on the inner side of the handle (2). A fixing frame (4) is fixedly connected to the right side of the handle (2). A rubber pad (5) is movably connected inside the fixing frame (4). A limiting rod (6) is fixedly connected to the inner cavity of the hollow plate (1). The outer surface of the limiting rod (6) is movably sleeved with the inside of the handle (2). A first spring (7) is movably sleeved on the outer surface of the limiting rod (6). One end of the first spring (7) is fixedly connected to the outer surface of the handle (2), and the other end of the first spring (7) is fixedly connected to the inner cavity of the hollow plate (1).

2. The auxiliary device for preventing needle puncture wounds during infusion port removal according to claim 1, characterized in that: A rotating rod (8) is movably sleeved on the front of the fixed frame (4). The other end of the rotating rod (8) passes through the fixed frame (4) and extends into the inner cavity of the fixed frame (4) and is fixedly sleeved with a rotating plate (9). A round rod (10) is fixedly connected to the back of the rotating plate (9).

3. The auxiliary device for preventing needle puncture wounds during infusion port removal according to claim 2, characterized in that: The outer surface of the round rod (10) is movably connected to the sleeve rod (11), the inner side of the sleeve rod (11) is fixedly connected to the connecting rod (12), the left side of the connecting rod (12) is fixedly connected to the rectangular block (13), the outer surface of the rectangular block (13) is movably fitted with the connecting block (14), the top of the connecting block (14) is fixedly connected to the bottom of the rubber pad (5), and the outer surface of the connecting block (14) is movably connected to the inside of the fixing frame (4).

4. The auxiliary device for preventing needle puncture during infusion port removal according to claim 1, characterized in that: The inner cavity of the fixed frame (4) is fixedly connected to a limiting plate (20), the inside of the limiting plate (20) is movably sleeved with the inside of the connecting rod (12), and the inner surface of the limiting plate (20) is smooth.

5. The auxiliary device for preventing needle puncture wounds during infusion port removal according to claim 1, characterized in that: The fixing plate (15) located to the right of the rotating rod (8) is fixedly installed on the front of the fixing frame (4). A pull rod (16) is movably sleeved inside the fixing plate (15). The left end of the pull rod (16) passes through the fixing plate (15) and extends to the outside of the fixing plate (15) and is fixedly connected to a locking block (17). A gear (19) is meshed with the outer surface of the locking block (17). The outer surface of the rotating rod (8) inside the gear (19) is fixedly sleeved.

6. The auxiliary device for preventing needle puncture during infusion port removal according to claim 5, characterized in that: A second spring (18) is movably sleeved on the outer surface of the pull rod (16). The left end of the second spring (18) is fixedly connected to the right side of the locking block (17), and the right side of the second spring (18) is fixedly connected to the left side of the fixing plate (15).

7. The auxiliary device for preventing needle puncture wounds during infusion port removal according to claim 1, characterized in that: The number of grips (2) is two, the two grips (2) are the same size, and the outer surfaces of the two grips (2) are smooth.

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