A needle set

Abstract

The application relates to the technical field of medical auxiliary facilities, and provides a remaining needle fixing device which comprises a flexible binding ring, a pressing frame and a protective cover. The flexible binding ring is provided with a protective opening matched with the pressing frame, the pressing frame penetrates through the protective opening and is connected with the flexible binding ring, the protective cover is arranged on the pressing frame, and the pressing frame is provided with a clamping hole. The remaining needle fixing device can fix the transparent adhesive film as a whole, effectively avoids the edge curling of the transparent adhesive film, can effectively prevent the displacement of the needle head part of the remaining needle and the flexible catheter, and greatly improves the use safety.

Description

Technical Field

[0001] This application relates to the field of medical assistive device technology, and more specifically, to an indwelling needle fixation device. Background Technology

[0002] The content in this section provides only background information related to this application and may not constitute prior art.

[0003] The core components of an indwelling catheter include a flexible catheter / cannulas that can be left in a blood vessel, and a stainless steel puncture guide needle. During use, the catheter and needle are inserted into the blood vessel together. Once the catheter is fully inside the vessel, the needle is withdrawn, leaving only the flexible catheter in place for intravenous infusion. The connector needs to be fixed to the patient's infusion site. Currently, the method for fixing the connector to the patient's infusion site is to use medical transparent adhesive film to completely attach the needle tip to the patient's skin, while the other end of the Y-shaped tube is fixed to the patient's skin with tape.

[0004] Chinese patent document CN114870156A discloses a nursing indwelling needle fixation device, including a fixation frame a, a fixator installed on the outer wall of the fixation frame a, a fixation plate installed on the top of the fixation frame a, a fixation sleeve installed on the top of the fixation plate, a connecting plate installed on one side of the outer wall of the fixation frame a, an extension plate movably installed on one end of the connecting plate, a connecting plate b movably installed on one end of the extension plate, a fixation frame b installed on the bottom end of the connecting plate b, and an installation groove opened on the top of the fixation frame b, with a detection device installed inside the installation groove. Specifically, the limiting groove can improve the adhesion position of the adhesive strip. When the adhesive strip is adhered inside the limiting groove, by rotating the limiting plate, the limiting block is moved inside the fixator by the push rod, so that the limiting block is engaged with the limiting frame on the outer wall of the limiting plate, fixing the limiting plate and ensuring its stability. This allows the limiting plate to fix the adhesive strip, thus preventing the adhesive strip from falling off. It can also stably fix the indwelling needle, preventing the indwelling needle from falling off and causing injury to the patient.

[0005] However, the aforementioned technologies have the following drawbacks. Currently, in practical use, most hospitals use transparent adhesive film to attach the needle and the flexible catheter placed in the patient's blood vessel together to the patient's skin for fixation, thus preventing needle movement. The patented technology uses adhesive strips to fix the flexible catheter and other parts, and then uses a fixing sleeve and a limiting frame to fix the needle. In actual use, since the needle and flexible catheter are a single unit, fixing them separately still easily leads to movement. When the transparent adhesive film completely covers and fixes the needle and flexible catheter, this type of technology cannot effectively compress and fix the transparent adhesive film; the film is still prone to curling or rolling, causing displacement or detachment of the flexible catheter and needle. Therefore, there is a need indwelling needle fixation device on the market that can fix the transparent adhesive film as a whole, preventing curling or rolling that could lead to detachment, and effectively preventing displacement of the needle and flexible catheter. Summary of the Invention

[0006] To address the aforementioned technical problems, the purpose of this application is to provide an indwelling needle fixation device that can fix the transparent film as a whole, effectively preventing the transparent film from curling or peeling, and at the same time effectively preventing displacement of the needle tip and flexible catheter, thus greatly improving the safety of use.

[0007] The objective of this application is achieved through the following technical solution:

[0008] An indwelling needle fixation device includes a flexible restraint ring, a clamping frame, and a protective cover. The flexible restraint ring has a protective opening adapted to the clamping frame. The clamping frame passes through the protective opening and is connected to the flexible restraint ring. The protective cover covers the clamping frame, and the clamping frame has clamping holes.

[0009] In some possible embodiments, an adjusting member is provided between the clamping frame and the flexible restraint ring. The adjusting member allows the clamping frame to slide along the opening direction of the protective opening. The adjusting member includes an adjusting piece circumferentially disposed on the edge of the clamping frame. A plurality of guide posts are evenly distributed through the adjusting piece. One end of any guide post extends into the flexible restraint ring and is rotatably connected to the flexible restraint ring. A fixing member is sleeved on the guide post. The fixing member is disposed on the clamping frame, and the guide post is threadedly connected to the fixing member.

[0010] In some possible embodiments, the flexible restraint ring is provided with thrust bearings that correspond one-to-one with the guide posts, and any of the guide posts extends into the thrust bearings and is connected to the thrust bearings.

[0011] In some possible embodiments, the fastener is a nut.

[0012] In some possible embodiments, any of the guide posts are engraved with height indicator lines.

[0013] In some possible embodiments, a rotating handle is provided at the end of the guide post away from the flexible restraint ring.

[0014] In some possible embodiments, one end of the clamping frame located on the inner ring side of the flexible restraint ring has an arc-shaped structure.

[0015] In some possible embodiments, a flexible anti-slip layer is provided on one end face of the clamping frame located on the inner ring side of the flexible restraint ring.

[0016] In some possible embodiments, the flexible restraint ring includes a loop and a connecting structure, the connecting structure including a hook and loop fastener, one end of the loop being connected to the hook side of the hook and loop fastener and the other end being connected to the loop side of the hook and loop fastener.

[0017] In summary, the technical solutions of this application have at least the following advantages and beneficial effects:

[0018] 1. The flexible restraint ring in this application can be secured to the site where the patient needs intravenous infusion. Simultaneously, the clamping frame can be placed over the flexible catheter and needle after insertion into the blood vessel. Under the tension of the flexible restraint ring, the clamping frame can compress the transparent film around the flexible catheter and needle, effectively protecting them and preventing displacement caused by external objects touching them. Furthermore, circumferentially compressing the transparent film also effectively prevents it from curling or peeling, thus avoiding detachment. Therefore, the technical solution disclosed in this application can fix the transparent film as a whole, effectively preventing curling or peeling, and effectively preventing displacement of the indwelling needle and flexible catheter, greatly improving safety.

[0019] 2. The protective cover of this application is installed on the clamping frame, which can prevent external objects from touching the needle part and flexible tube at the clamping frame, thereby further improving the safety of use.

[0020] 3. The clamping frame in this application can also effectively restrain the flexible catheter and needle. Since human skin is flexible, restraining the flexible catheter and needle in a small area will also have a certain restraining effect on the skin at that location, which can effectively prevent the relative displacement of the flexible catheter caused by the flexible displacement of the skin, and further improve the safety of use.

[0021] 4. The clamping frame of this application has a clamping hole, which is mainly used to pass through and clamp the tubing connected to the needle, so as to avoid the problem of difficulty in liquid flow when the clamping frame compresses the tubing. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of an embodiment of this application;

[0023] Figure 2 This is a schematic diagram of a three-dimensional cross-sectional structure according to an embodiment of this application;

[0024] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0025] Figure 4 This is a schematic diagram of the clamping frame in an embodiment of this application;

[0026] Figure 5 This is a schematic diagram of the guide column in an embodiment of this application.

[0027] Icons: 1-Flexible restraint ring; 2-Pressure frame; 3-Protective cover; 4-Protective opening; 5-Clamping hole; 6-Adjusting plate; 7-Guide post; 8-Thrust bearing; 9-Height indicator line; 10-Rotating handle; 11-Flexible anti-slip layer; 12-Hook and loop fastener; 13-Transparent film; 14-Arm; 15-Nut; 16-Hose. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0029] The following is for reference Figures 1 to 5 This application will be described in further detail.

[0030] Taking the fixation of an indwelling needle in a vein in the arm as an example, refer to Figure 1 , Figure 2 and Figure 4This embodiment provides an indwelling needle fixation device, including a flexible restraint ring 1, a clamping frame 2, and a protective cover 3. The flexible restraint ring 1 has a protective opening 4 adapted to the clamping frame 2. The clamping frame 2 passes through the protective opening 4 and is connected to the flexible restraint ring 1. The protective cover 3 covers the clamping frame 2, and the clamping frame 2 has clamping holes 5. The flexible restraint ring 1 is mainly used to fit and restrain the arm 14. The protective opening 4 is mainly used to cover the flexible catheter and needle tip of the indwelling needle. In this way, the clamping frame 2 can cover the flexible catheter and needle tip after they have been inserted into the blood vessel. At this time, under the tension of the flexible restraint ring 1, the clamping frame 2 can press the transparent film 13 around the flexible catheter and needle tip, thus effectively protecting the flexible catheter and needle tip from displacement caused by external objects touching them. Meanwhile, by pressing the transparent adhesive film 13 circumferentially with the clamping frame 2, it is possible to effectively prevent the transparent adhesive film 13 from falling off due to problems such as curling and lifting. Therefore, the technical solution disclosed in this application can fix the transparent adhesive film 13 as a whole, effectively preventing the transparent adhesive film 13 from curling and lifting, and at the same time, it can effectively prevent the needle tip of the indwelling needle and the flexible catheter from shifting, greatly improving the safety of use.

[0031] In this embodiment, the protective cover 3 is placed over the clamping frame 2, which further prevents external objects from touching the needle tip and flexible catheter at the clamping frame 2, thus improving safety. The clamping frame 2 also effectively restrains the flexible catheter and needle tip. Since human skin is flexible, restraining the flexible catheter and needle tip in a small area also restrains the skin at that location, effectively preventing relative displacement of the flexible catheter caused by skin displacement, further improving safety. The clamping hole 5 on the clamping frame 2 is mainly used to pass through and clamp the tubing 16 connected to the needle tip, preventing the clamping frame 2 from compressing the tubing 16 and causing difficulty in fluid flow during infusion.

[0032] It should be noted that in this embodiment, both the flexible restraint strap material and the compression frame 2 are made of silicone. Silicone material has advantages such as being environmentally friendly and non-toxic. Furthermore, it conforms better to the patient's skin, providing greater comfort.

[0033] In some embodiments of this example, an adjusting member is provided between the aforementioned clamping frame 2 and the aforementioned flexible restraint ring 1. This adjusting member allows the clamping frame 2 to slide along the opening direction of the aforementioned protective opening 4. The adjusting member is mainly used to adjust the position of the clamping frame 2 on the flexible restraint ring 1, that is, to adjust the length of the clamping frame 2 extending into the arm 14. A longer length results in greater tension in the flexible restraint ring 1, and vice versa. Medical personnel can freely adjust the length according to the thickness of the patient's arm 14 to achieve the best fit for the patient's arm 14. This ensures that the pressure of the clamping frame 2 does not loosen and provides better comfort for the patient.

[0034] Specifically, the aforementioned adjusting component includes an adjusting plate 6 circumferentially disposed on the edge of the aforementioned clamping frame 2, with multiple guide posts 7 evenly extending through the adjusting plate 6. One end of any of the aforementioned guide posts 7 extends into the aforementioned flexible restraint ring 1 and is rotatably connected to the aforementioned flexible restraint ring 1. A fixing member is sleeved on the aforementioned guide post 7, and the aforementioned fixing member is disposed on the aforementioned clamping frame 2. The aforementioned guide post 7 is threadedly connected to the aforementioned fixing member. The aforementioned fixing member and adjusting plate 6 are rigid, so when they rotate in threaded engagement with the guide post 7, they will not affect the deformation of the clamping frame 2. By rotating the aforementioned guide post 7, the rotational motion can be converted into the linear motion of the adjusting plate 6. After the guide post 7 rotates, it will drive the clamping frame 2 connected to the adjusting plate 6 to move relative to the flexible restraint ring 1 at the protective opening 4, which can effectively perform adjustment.

[0035] In this embodiment, the flexible restraint ring 1 is provided with thrust bearings 8 corresponding one-to-one with the guide posts 7. Any of the guide posts 7 extends into the thrust bearing 8 and is connected to it. The thrust bearing 8 is used to achieve a rotatable connection between the guide post 7 and the flexible restraint ring 1. The thrust bearing 8 is a key component preventing the guide post 7 from moving in the axial direction and is widely used in various equipment that needs to withstand axial loads. Common thrust bearings include thrust ball bearings, thrust roller bearings, thrust angular contact ball bearings, thrust tapered roller bearings, thrust cylindrical roller bearings, thrust self-aligning roller bearings, thrust needle roller bearings, and thrust combined bearings. This embodiment uses thrust ball bearings to prevent the guide post 7 from moving relative to the flexible restraint ring 1 in the axial direction, while ensuring the rotation of the guide post 7.

[0036] It is worth noting that the aforementioned fastener is a nut 15. The nut 15 is embedded in the adjusting plate 6 so that the thread engages with the thread of the guide post 7. Rotating the guide post 7 can effectively prevent the nut 15 from being rotated by force.

[0037] In this embodiment, a height indicator line 9 is engraved on any of the guide columns 7. The height indicator line 9 is used to indicate the length of the clamping frame 2 extending into the arm 14, so that medical staff can intuitively understand the length and make corresponding adjustments.

[0038] Furthermore, a rotating handle 10 is provided at one end of the guide post 7, which is away from the flexible restraint ring 1. The rotating handle 10 allows for easy rotation of the guide post 7.

[0039] In some embodiments of this example, one end of the clamping frame 2 located on the inner ring side of the aforementioned flexible restraint ring 1 has an arc-shaped structure. The arc-shaped structure facilitates contact with the patient's arm 14 skin, allowing the clamping frame 2 to adhere tightly to the transparent adhesive film 13, resulting in a better clamping effect.

[0040] In this embodiment, a flexible anti-slip layer 11 is provided on one end face of the clamping frame 2 located on the inner ring side of the flexible restraint ring 1. The flexible anti-slip layer 11 can play an anti-slip role. The transparent film 13 generally has a smooth surface. In order to prevent the clamping frame 2 from slipping against it, the flexible anti-slip layer 11 can be provided to increase the resistance between the clamping frame 2 and the transparent film 13.

[0041] It should be noted that in some embodiments of this example, the flexible restraint ring 1 includes a loop and a connecting structure. The connecting structure and the loop cooperate to form a ring structure, while also allowing for easy unhooking. The connecting structure includes Velcro 12, with one end of the loop connected to the hook side of the Velcro 12 and the other end connected to the loop side. In use, the connection between the hook side and the loop side forms the flexible restraint ring 1, which can then be fitted onto the arm 14; conversely, when the hook side and the loop side are separated, the flexible restraint ring 1 can be removed. Furthermore, it can adjust the tightness according to the size of the patient's arm 14, further enhancing comfort.

[0042] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A device for fixing an indwelling needle, characterized in that, The device includes a flexible restraint ring, a clamping frame, and a protective cover. The flexible restraint ring has a protective opening that is adapted to the clamping frame. The clamping frame passes through the protective opening and is connected to the flexible restraint ring. The protective cover covers the clamping frame. The clamping frame has clamping holes. An adjusting member is provided between the clamping frame and the flexible restraint ring. The adjusting member allows the clamping frame to slide along the opening direction of the protective opening. The adjusting member includes an adjusting piece circumferentially disposed on the edge of the clamping frame. Multiple guide posts are evenly distributed through the adjusting piece. One end of any guide post extends into the flexible restraint ring and is rotatably connected to the flexible restraint ring. A fixing member is sleeved on the guide post. The fixing member is disposed on the clamping frame, and the guide post is threadedly connected to the fixing member.

2. The indwelling needle fixation device according to claim 1, characterized in that, The flexible restraint ring is provided with thrust bearings that correspond one-to-one with the guide posts. Any of the guide posts can extend into the thrust bearings and be connected to them.

3. The indwelling needle fixation device according to claim 1, characterized in that, The fastener is a nut.

4. The indwelling needle fixation device according to claim 1, characterized in that, Any of the guide posts is engraved with a height indicator line.

5. The indwelling needle fixation device according to claim 1, characterized in that, A rotating handle is provided at one end of the guide post away from the flexible restraint ring.

6. The indwelling needle fixation device according to claim 1, characterized in that, The clamping frame located on the inner ring side of the flexible restraint ring has an arc-shaped structure at one end.

7. The indwelling needle fixation device according to claim 1, characterized in that, A flexible anti-slip layer is provided on one end face of the clamping frame located on the inner ring side of the flexible restraint ring.

8. The indwelling needle fixation device according to claim 1, characterized in that, The flexible restraint ring includes a loop and a connecting structure. The connecting structure includes a hook and loop fastener. One end of the loop is connected to the hook side of the hook and loop fastener, and the other end is connected to the loop side of the hook and loop fastener.

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