Multi-angle adjustable safety portacath needle device

Abstract

The utility model relates to medical instrument technical field especially multi -angle adjustable safety type infusion port puncture needle device. Its technical scheme, including: the port seat of burying under the skin of patient, the inside of port seat is provided with the liquid storage cavity, the upper surface of port seat is fixedly provided with the locating ring, and the locating ring is connected with the liquid storage cavity, and the inside of locating ring is sealed and is sleeved with puncture septum, the lock buckle of connection is set up in one side of port seat, and the lock buckle of connection is connected with the liquid storage cavity, and the one end of lock buckle of connection is connected with the catheter, the fixed plate of setting up in the skin surface of patient, the upper surface of fixed plate is fixedly provided with the puncture needle assembly for the puncture of patient. The utility model can make medical staff can according to actual situation flexible adjustment puncture needle angle, make it always keep the best puncture position, avoid because patient activity leads to infusion port needle displacement, greatly reduce the risk of exosmosis, ensure the continuity of treatment, prolong the service life of infusion port, guarantee patient infusion safety.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a multi-angle adjustable safety port-infusion needle device. Background Technology

[0002] An infusion port (also known as a PORT) is an advanced medical technology that has only recently been applied clinically. It is completely implanted under the skin, providing a safe and reliable intravenous access for patients. It is a device specifically designed for patients requiring long-term and repeated intravenous infusion therapy. The infusion port needle is the needle used to connect the infusion port to the infusion device (such as an infusion bag or syringe). Existing infusion ports are very simple to use; simply insert the needle into the infusion seat and secure it to begin the infusion. However, during the infusion process, due to prolonged patient movement in bed and trips to the toilet, the infusion port needle may shift, causing extravasation, affecting the continuity of treatment and the lifespan of the infusion port, and increasing the safety risks for the patient. Therefore, this invention proposes a multi-angle adjustable safety infusion port puncture needle device. Utility Model Content

[0003] The purpose of this invention is to address the problem in the background technology that while infusion port needles are very simple to use—simply inserting the needle into the infusion seat and fixing it in place to begin infusion—during the infusion process, patients often move around in bed or go to the toilet, leading to displacement of the infusion port needle and extravasation. This affects the continuity of treatment and the lifespan of the infusion port, increasing the safety risks for patients undergoing infusion. Therefore, this invention proposes a multi-angle adjustable safety infusion port puncture needle device.

[0004] The technical solution of this utility model: a multi-angle adjustable safety port-a-cath puncture needle device, comprising: a port seat embedded under the patient's skin, the port seat having a reservoir cavity inside, a positioning ring fixedly disposed on the upper surface of the port seat and communicating with the reservoir cavity, and a puncture diaphragm sealed inside the positioning ring; a connecting latch disposed through one side of the port seat, the connecting latch communicating with the reservoir cavity, and a catheter being disposed at one end of the connecting latch; and a fixing plate disposed on the surface of the patient's skin, the upper surface of the fixing plate being fixedly disposed with a puncture needle assembly for puncturing the patient.

[0005] Optionally, the puncture needle assembly includes a rotating disk rotatably mounted on the upper surface of a fixed plate. The side wall of the rotating disk has a slot, and a first elastic plate is fixedly mounted on the upper surface of the rotating disk. A connecting block is engaged at one end of the first elastic plate, and a puncture needle is mounted on the bottom surface of the connecting block. An infusion tube is connected to one end of the connecting block.

[0006] Optionally, the puncture needle assembly further includes a through groove formed on the upper surface of the first elastic plate. A guide rod is fixedly disposed inside the through groove. A sliding block is movably sleeved on the outer wall of the guide rod. A locking block is fixedly disposed on the bottom surface of the sliding block. Multiple locking blocks are fixedly disposed on one side of the locking block. A connecting plate is hinged to one end of the locking block. A connecting seat is hinged to one end of the connecting plate. The connecting seat is fixedly connected to the upper surface of the fixed plate. A spring is sleeved on the outer wall of the guide rod. One end of the spring is fixedly connected to the first elastic plate, and the other end of the spring is fixedly connected to the sliding block.

[0007] Optionally, a fixing ring is fixedly provided at one end of the fixing plate.

[0008] Optionally, a groove is provided at one end of the fixing plate, and a slider is provided inside the groove, with one end of the slider being fixedly connected to the connecting block.

[0009] Optionally, a limiting groove is formed on the upper surface of the rotating disk, a second elastic plate is provided on the upper surface of the sliding block, and a limiting block is fixedly provided on the bottom surface of the second elastic plate.

[0010] Optionally, the groove and the slider are connected by an interference fit.

[0011] Optionally, the bottom surfaces of the fixing plate and the fixing ring are respectively provided with adhesive surfaces.

[0012] In summary, this application includes at least one of the following beneficial technical effects:

[0013] This invention, through the design of the rotating disk, first elastic plate, guide rod, sliding block, connecting plate and connecting seat in the puncture needle assembly, enables medical staff to flexibly adjust the angle of the puncture needle according to the actual situation, so that it always maintains the optimal puncture position, avoids displacement of the infusion port due to patient movement, greatly reduces the risk of extravasation, ensures the continuity of treatment, extends the service life of the infusion port, and protects the patient's infusion safety.

[0014] Furthermore, this invention, through the cooperative design of the slot on the outer wall of the rotating disc, the locking block on the locking block, the limiting groove, the second elastic sheet, and the limiting block, can adjust the puncture position of the puncture needle, avoid repeated punctures of the same position on the patient's skin, reduce the patient's pain, and prevent the puncture needle from shifting, effectively reducing infusion safety hazards and providing patients with a more stable and safer infusion experience. Attached Figure Description

[0015] Figure 1 A schematic diagram of a multi-angle adjustable safety port-infusion needle device is provided.

[0016] Figure 2 for Figure 1Diagram after puncture;

[0017] Figure 3 for Figure 2 Schematic diagram of the internal cross-sectional structure;

[0018] Figure 4 for Figure 1 A partial disassembled structural diagram of the puncture needle assembly.

[0019] Figure label:

[0020] 1. Harbor; 2. Liquid reservoir; 3. Positioning ring; 4. Puncture diaphragm; 5. Connecting latch; 6. Catheter; 7. Fixation plate;

[0021] 8. Puncture needle assembly; 801. Rotary disk; 802. Slot; 803. First elastic plate; 804. Connecting block; 805. Puncture needle; 806. Infusion tubing; 807. Through groove; 808. Guide rod; 809. Sliding block; 810. Locking block; 811. Locking block; 812. Linkage plate; 813. Connecting seat; 814. Spring;

[0022] 9. Fixing ring; 10. Slide groove; 11. Slider; 12. Limiting groove; 13. Second elastic plate; 14. Limiting block. Detailed Implementation

[0023] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0024] The components of the present invention embodiments described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0025] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0026] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "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, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] Example

[0029] like Figure 1 and Figure 2 As shown, the multi-angle adjustable safety port-a-cath puncture needle device proposed in this utility model includes: a port seat 1 embedded under the patient's skin, with a reservoir 2 inside the port seat 1 to facilitate fluid transfer; a positioning ring 3 fixedly installed on the upper surface of the port seat 1, and the positioning ring 3 communicating with the reservoir 2; the positioning ring 3 being relatively protruding to facilitate positioning after being embedded under the skin; a puncture diaphragm 4 sealingly fitted inside the positioning ring 3 to ensure the sealing of the reservoir 2 inside the port seat 1; a connecting latch 5 penetrating one side of the port seat 1, communicating with the reservoir 2 to ensure a sealed connection; a catheter 6 connected to one end of the connecting latch 5 to facilitate the infusion of fluid into the patient's blood vessels; and a fixing plate 7 installed on the surface of the patient's skin, with a puncture needle assembly 8 fixedly installed on the upper surface of the fixing plate 7 for puncturing the patient, facilitating positioning for puncture and improving the efficiency and safety of puncture.

[0030] like Figure 2 and Figure 3As shown, the puncture needle assembly 8 includes a rotating disk 801 rotatably mounted on the upper surface of the fixed plate 7 via a bearing. The side wall of the rotating disk 801 has a slot 802. A first elastic plate 803 is fixedly mounted on the upper surface of the rotating disk 801. A connecting block 804 is engaged at one end of the first elastic plate 803 to facilitate the movement of the connecting block 804. A puncture needle 805 is mounted on the bottom surface of the connecting block 804 to ensure greater stability of the puncture needle 805 during puncture. An infusion tube 806 is connected to one end of the connecting block 804 to facilitate the infusion of fluid into the patient's blood vessels.

[0031] Furthermore, the puncture needle assembly 8 also includes a through groove 807 formed on the upper surface of the first elastic plate 803. A guide rod 808 is fixedly disposed inside the through groove 807, and a sliding block 809 is movably sleeved on the outer wall of the guide rod 808 to guide the sliding block 809 and make it slide stably. A locking block 810 is fixedly disposed on the bottom surface of the sliding block 809 to facilitate the simultaneous movement of the locking block 810. Multiple locking blocks 811 are fixedly disposed on one side of the locking block 810 to facilitate the locking of the slot 8 on the side wall of the rotating disk 801. 02 are stably engaged with each other, thereby limiting the rotation disk 801. One end of the locking block 810 is hinged to a connecting plate 812, and one end of the connecting plate 812 is hinged to a connecting seat 813. The connecting seat 813 is fixedly connected to the upper surface of the fixed plate 7, which can limit the first elastic plate 803. A spring 814 is sleeved on the outer wall of the guide rod 808. One end of the spring 814 is fixedly connected to the first elastic plate 803, and the other end of the spring 814 is fixedly connected to the sliding block 809, which can push the first elastic plate 803 to reset.

[0032] Secondly, a fixing ring 9 is fixedly installed at one end of the fixing plate 7, which can fit together with the positioning ring 3 to determine the puncture position.

[0033] like Figures 1 to 4 As shown, a groove 10 is provided at one end of the fixed plate 7, and a slider 11 is provided inside the groove 10 to stably guide the slider 11. One end of the slider 11 is fixedly connected to the connecting block 804 to facilitate the adjustment of the position of the connecting block 804.

[0034] Furthermore, a limiting groove 12 is provided on the upper surface of the rotating disk 801, and a second elastic plate 13 is provided on the upper surface of the sliding block 809. A limiting block 14 is fixedly provided on the bottom surface of the second elastic plate 13, which can be engaged with the limiting groove 12 to stably limit the first elastic plate 803.

[0035] In addition, the slide groove 10 and the slider 11 are connected by interference fit, which can make the friction between the slide groove 10 and the slider 11 greater, thereby limiting the slider 11.

[0036] Finally, the bottom surfaces of the fixation plate 7 and the fixation ring 9 are respectively provided with adhesive surfaces, which can be stably attached to the patient's skin surface and prevent them from falling off.

[0037] The working principle of this embodiment is as follows: First, the port seat 1 is implanted under the patient's skin at a designated location, and the catheter 6 is connected to the patient's blood vessels.

[0038] During puncture, locate the protruding position of the positioning ring 3 by palpating the patient's skin to determine the puncture position. After determining the position, align the fixing ring 9 with the positioning ring 3 and fix it to the patient's skin surface through the adhesive surface of the fixing plate 7 and the bottom of the fixing ring 9.

[0039] Then, the connecting block 804 is slidably inserted into the inside of the groove 10 by the slider 11. The slider 11 and the groove 10 are interference fit so that the slider 11 will not be displaced during puncture.

[0040] The rotating disk 801 is manually rotated according to the puncture angle. The rotating disk 801 drives the puncture needle 805 to move in an arc shape through the first elastic plate 803. After moving to the appropriate position, the first elastic plate 803 is manually pressed. The first elastic plate 803 drives the puncture needle 805 to move downward, so that the puncture needle 805 stably punctures the puncture diaphragm 4 and inserts into the liquid storage chamber 2 inside the port seat 1. During the movement and pressing process, the first elastic plate 803 simultaneously drives the sliding block 809 to slide on the outer wall of the guide rod 808. The sliding block 809 drives the locking block 810 to move. The locking block 810 drives the connecting plate 812 to rotate on the connecting seat 813. At the same time, the locking block 810 drives the locking block 811 to move and lock into the inside of the locking groove 802 on the surface of the rotating disk 801, thereby stabilizing and limiting the angle of the puncture needle 805.

[0041] During its movement, the sliding block 809 simultaneously moves the second elastic plate 13, which in turn moves the limiting block 14, causing it to stably engage with the limiting groove 12, thus fixing the angle of the first elastic plate 803. This allows medical staff to flexibly adjust the angle of the puncture needle according to the actual situation, ensuring it remains in the optimal puncture position. It prevents displacement of the infusion port due to patient movement, significantly reducing the risk of extravasation, ensuring treatment continuity, extending the lifespan of the infusion port, and guaranteeing patient infusion safety.

[0042] The above specific embodiments are merely optional embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A multi-angle adjustable safety port-of-care puncture needle device, characterized in that, include: A port seat (1) is implanted under the patient's skin. The port seat (1) has a liquid storage cavity (2) inside. A positioning ring (3) is fixedly installed on the upper surface of the port seat (1) and the positioning ring (3) is connected to the liquid storage cavity (2). A puncture diaphragm (4) is sealed inside the positioning ring (3). A connecting latch (5) is provided through one side of the port seat (1), the connecting latch (5) is connected to the liquid storage chamber (2), and a conduit (6) is provided at one end of the connecting latch (5); A fixation plate (7) is disposed on the surface of the patient's skin, and a puncture needle assembly (8) for puncturing the patient is fixedly disposed on the upper surface of the fixation plate (7).

2. The multi-angle adjustable safety port-of-care puncture needle device according to claim 1, characterized in that, The puncture needle assembly (8) includes a rotating disk (801) rotatably mounted on the upper surface of a fixed plate (7). The side wall of the rotating disk (801) is provided with a slot (802). A first elastic plate (803) is fixedly mounted on the upper surface of the rotating disk (801). A connecting block (804) is snapped onto one end of the first elastic plate (803). A puncture needle (805) is mounted on the bottom surface of the connecting block (804). An infusion tube (806) is connected to one end of the connecting block (804).

3. The multi-angle adjustable safety infusion port needle device of claim 2, wherein, The puncture needle assembly (8) further includes a through groove (807) formed on the upper surface of the first elastic plate (803). A guide rod (808) is fixedly disposed inside the through groove (807). A sliding block (809) is movably sleeved on the outer wall of the guide rod (808). A locking block (810) is fixedly disposed on the bottom surface of the sliding block (809). A plurality of locking blocks (811) are fixedly disposed on one side of the locking block (810). A connecting plate (812) is hinged to one end of the locking block (810). A connecting seat (813) is hinged to one end of the connecting plate (812). The connecting seat (813) is fixedly connected to the upper surface of the fixed plate (7). A spring (814) is sleeved on the outer wall of the guide rod (808). One end of the spring (814) is fixedly connected to the first elastic plate (803), and the other end of the spring (814) is fixedly connected to the sliding block (809).

4. The multi-angle adjustable safety infusion port needle device of claim 1, wherein, A fixing ring (9) is fixedly provided at one end of the fixing plate (7).

5. The multi-angle adjustable safety infusion port needle device of claim 3, wherein, The fixed plate (7) has a groove (10) at one end, and a slider (11) is provided inside the groove (10). One end of the slider (11) is fixedly connected to the connecting block (804).

6. The multi-angle adjustable safety infusion port needle device of claim 3, wherein, The upper surface of the rotating disk (801) is provided with a limiting groove (12), the upper surface of the sliding block (809) is provided with a second elastic plate (13), and the bottom surface of the second elastic plate (13) is fixedly provided with a limiting block (14).

7. The multi-angle adjustable safety infusion port needle device of claim 5, wherein, The groove (10) and the slider (11) are connected by interference fit.

8. The multi-angle adjustable safety infusion port needle device of claim 5, wherein, The bottom surfaces of the fixing plate (7) and the fixing ring (9) are respectively provided with adhesive surfaces.

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