A needle set

Abstract

The utility model discloses a kind of indwelling needle fixing devices, it is related to medical nursing instrument technical field. Including backing plate, soft cushion layer is laid on upper surface, the side of the backing plate is provided with connecting structure;Fixed sleeve, it is surrounded in the upper surface of the backing plate, it is round arch, the front and rear end of the fixed sleeve is all set up and is out of the sleeve mouth for hand, the upper surface of the fixed sleeve is provided with visual structure, and inner top side is provided with the fixed structure for fixing the indwelling needle. The indwelling needle fixing device of the utility model effectively prevents indwelling needle from moving due to children activity, appropriately shields indwelling needle, avoids children to see directly touch, and ensure that medical staff can observe the state of indwelling needle at any time, so as to discover and handle in time.

Description

Technical Field

[0001] This utility model relates to the field of medical and nursing device technology, specifically to an indwelling needle fixation device. Background Technology

[0002] An indwelling catheter, also known as a venous catheter, mainly consists of a flexible catheter at the tip and a metal needle core at the back. During the puncture procedure, the medical staff holds the needle core and inserts the catheter and needle core together into the patient's vein. Once the puncture is confirmed to be successful, i.e., blood flows back into the return chamber of the needle hub, the needle core is withdrawn, leaving only the flexible catheter in the vein. Whether for patients with chronic diseases requiring long-term intravenous infusion therapy or patients needing large amounts of fluid replacement or medication before and after surgery, it effectively reduces the pain caused by repeated punctures. Especially in pediatrics, because children's blood vessels are smaller, punctures are more difficult, and children are more sensitive to pain, the use of indwelling catheters can effectively reduce the pain of children during treatment and ensure the smooth progress of treatment.

[0003] However, children are naturally active and lack self-control. During the indwelling period, on the one hand, they find it difficult to stay still, and frequent hand movements can easily cause the indwelling needle to shift, fall out, or even puncture blood vessels, affecting the smooth progress of treatment. On the other hand, children are curious and sensitive to foreign objects such as indwelling needles. Seeing the indwelling needle may cause anxiety, leading them to touch it more frequently or try to remove it. Furthermore, children's skin is delicate, and existing fixation materials such as ordinary adhesive tape are difficult to balance breathability and fit, easily causing skin redness, itching, or even allergic reactions such as rashes. At the same time, parents may find it difficult to simultaneously ensure the fixation effect and observe the status of the indwelling needle during daily care. Improper operation may cause the indwelling needle to fail prematurely. Summary of the Invention

[0004] To address the aforementioned problems, this utility model aims to provide an indwelling needle fixing device that effectively prevents the indwelling needle from shifting due to children's activities, appropriately shields the indwelling needle to prevent children from directly seeing or touching it, and ensures that medical staff can observe the status of the indwelling needle at any time for timely detection and treatment.

[0005] The main idea of ​​the technical solution adopted in this utility model is as follows: by setting a pad with a soft padding layer, a stable and comfortable support base is provided for the indwelling needle; the connecting structure is used to achieve a stable connection between the device and the child's arm, preventing the device from shifting or falling off due to the child's activities; by setting a visible structure on the protective cover, medical staff can easily observe the condition of the indwelling needle tip at any time, while the limiting groove on the transparent baffle can further fix the needle tip and prevent it from shifting; by setting a fixing structure on the top side inside the protective cover, the indwelling needle is reasonably fixed while being covered, minimizing the risk of the indwelling needle becoming ineffective due to the child's activities and touching.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: An indwelling needle fixing device includes a pad with a soft pad layer on its upper surface and a connecting structure on the side of the pad; a fixing sleeve, which surrounds the upper surface of the pad and is arched, with openings at both the front and rear ends of the fixing sleeve for a person to enter and exit, a visible structure on the upper surface of the fixing sleeve, and a fixing structure for fixing the indwelling needle on the inner top side.

[0007] Furthermore, the above technical solution includes a window on the upper surface of the fixed sleeve corresponding to the position of the indwelling needle tip, and a transparent baffle set at the window position.

[0008] Furthermore, the above technical solution provides that: a limiting groove for fixing the needle is provided on the side of the baffle that contacts the needle, and the cross-section of the limiting groove cooperates with the needle.

[0009] Furthermore, the fixing structure includes an extension tube groove formed on the top side inside the fixing sleeve and a receiving groove for accommodating the indwelling needle connector. One end of the extension tube groove is connected to the limiting groove, and the other end is connected to the receiving groove.

[0010] Furthermore, the above technical solution provides that the receiving groove has an inlet and an outlet for the insertion of the indwelling needle connector.

[0011] Further, the outlet includes an elastic arm symmetrically arranged at the outlet of the receiving groove, one end of which is connected to the receiving groove, and the other end is a free end that bends inward, with an arc-shaped groove adapted to the shape of the Y-shaped interface provided on the inner side of the free end; a locking post is provided in the middle of the outlet for locking the Y-shaped fork of the indwelling needle connector.

[0012] Furthermore, the connection structure includes a first fixing strap and a second fixing strap respectively disposed on both sides of the pad, wherein the first fixing strap is provided with a male hook and loop fastener and the second fixing strap is provided with a female hook and loop fastener.

[0013] Furthermore, the fixed sleeve has a sweat-absorbing layer around the window on its inner top side.

[0014] Furthermore, through the above technical solutions, elastic protective pads are provided on the inner walls of the limiting groove and the extension tube groove.

[0015] The beneficial effects of this utility model are: 1. The arched fixing sleeve surrounds the pad, providing a relatively closed and stable protective space for the indwelling needle. It can effectively prevent the influence of external forces caused by children's movement on the indwelling needle. The fixing structure on the top side of the inner side of the fixing sleeve can reasonably accommodate the extension tube and connector of the indwelling needle, making the overall layout of the indwelling needle orderly and reducing the risk of displacement caused by messy tubing. The elastic arm and locking post at the outlet of the receiving slot can adaptably lock the Y-shaped interface of the indwelling needle connector. The limiting groove on the transparent baffle matches the cross section of the needle tip, further enhancing the fixing effect of the indwelling needle and greatly reducing the possibility of indwelling needle displacement, dislodgement or even puncture of blood vessels, ensuring the smooth progress of treatment.

[0016] 2. The design of the retainer blocks children's direct view of the indwelling needle, reducing their anxiety caused by curiosity. At the same time, the stable fixation reduces the shaking and discomfort that may occur when children are active, making children more comfortable during the indwelling period and reducing the frequency of touching or trying to remove the indwelling needle.

[0017] 3. The visible structure on the upper surface of the fixed sleeve allows direct observation of the indwelling needle tip through the window and transparent baffle without removing the fixing device. This enables timely detection of problems and appropriate measures to be taken, such as checking for abnormal phenomena like bleeding or swelling. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the inner top side structure of the fixing sleeve of this utility model; Figure 3 This is a schematic diagram of the receiving groove structure of this utility model; Figure 4 This utility model Figure 2 A schematic diagram of the three-dimensional structure at point A; Figure 5 This is a top view of the receiving groove of this utility model; Figure 6 This is a schematic diagram of the limiting groove structure of this utility model.

[0019] The components include: 1. Pad; 101. Soft padding layer; 2. Fixing sleeve; 3. Connecting structure; 301. First fixing strap; 302. Second fixing strap; 303. Male hook and loop fastener; 304. Female hook and loop fastener; 4. Visible structure; 401. Window; 402. Transparent baffle; 403. Limiting groove; 5. Fixing structure; 501. Extension tube groove; 502. Receiving groove; 503. Inlet; 504. Outlet; 505. Elastic arm; 5051. Arc-shaped groove; 506. Locking post; 6. Sweat-absorbing layer. Detailed Implementation

[0020] 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.

[0021] The inventors' research found that children are naturally active and lack self-control. During the indwelling period, frequent hand movements can easily cause the indwelling needle to shift, fall out, or even puncture blood vessels. Children are also very curious and will frequently touch the indwelling needle. Children's skin is delicate, and existing fixation materials such as ordinary adhesive tape are difficult to balance breathability and fit. At the same time, parents also find it difficult to ensure both fixation effectiveness and observation of the indwelling needle's status during daily care. Improper operation may lead to premature failure of the indwelling needle.

[0022] Based on the above findings, this application proposes an indwelling needle fixation device. By setting a pad with a soft cushion layer, it provides a stable and comfortable support base for the indwelling needle, preventing the device from shifting or falling off due to children's activities. By setting a visible structure on the protective cover, medical staff can easily observe the condition of the indwelling needle tip at any time. At the same time, the limiting groove on the transparent baffle can further fix the needle tip and prevent it from shifting. By setting a fixing structure on the top side inside the protective cover, it can reasonably fix the indwelling needle while covering it, minimizing the risk of the indwelling needle becoming ineffective due to the child's activities and touching it.

[0023] Example 1 See Figures 1-6This application discloses an indwelling needle fixation device, including a pad 1. The pad 1 is made of a rigid material, preferably PP polypropylene, to provide basic support. A soft pad layer 101 is fixedly laid on the upper surface of the pad 1, preferably by bonding or hot pressing. The soft pad layer 101 can ensure a certain degree of freedom of movement for children's hands, improve comfort, and reduce discomfort caused by prolonged wear. A connecting structure 3 is fixedly provided on the side of the pad 1 for fixing the device to the patient's arm. The connecting structure 3 includes two parts respectively fixedly disposed on the front two sides of the pad 1. The first fixing strap 301 and the second fixing strap 302 are located on the sides and rear. The first fixing strap 301 is equipped with a male hook and loop fastener 303, which is made of high-quality nylon. The second fixing strap 302 is equipped with a female hook and loop fastener 304 that mates with the male hook and loop fastener 303. The female hook and loop fastener 304 is also made of high-quality nylon to ensure good adhesion even after multiple uses. The lengths of the male hook and loop fastener 303 and the female hook and loop fastener 304 are one-third of the lengths of the first fixing strap 301 and the second fixing strap 302, allowing for quick and easy fixation according to the different arm sizes of children. The upper surface of the pad 1 is surrounded by a fixing sleeve 2, which is arched and used to cover and fix the indwelling needle and related components. It is preferably made of silicone or polymer composite material. The two ends of the fixing sleeve 2 are fixedly set on both sides of the pad 1, and the front and rear ends of the fixing sleeve 2 have openings for the user to enter and exit.

[0024] Next, a visual structure 4 is provided on the upper surface of the fixing sleeve 2 to facilitate medical staff to observe the status of the indwelling needle. The visual structure 4 includes a window 401 and a transparent baffle 402. The window 401 is opened on the upper surface of the fixing sleeve 2 and corresponds to the position of the indwelling needle tip. The transparent baffle 402 is set at the position of the window 401 to facilitate observation and protect the needle tip. The transparent baffle 402 is made of one of PC, PMMA, PET, or transparent silicone. A limiting groove 403 for fixing the needle tip is provided on the side of the transparent baffle 402 that contacts the needle tip. The cross-section of the limiting groove 403 matches the needle tip. In this embodiment, the needle tip is cylindrical, so the cross-section of the limiting groove 403 is a semi-circular groove surrounding the needle tip. An elastic protective pad is provided on the inner wall of the limiting groove 403 to increase the clamping force on the needle tip and prevent it from sliding. The elastic protective pad is fixedly connected by an adhesive. The inner top side of the fixing sleeve 2 is also provided with a sweat-absorbing layer 6 around the outer ring of the window 401. The sweat-absorbing layer 6 is made of cotton fabric and is used to absorb sweat at the needle tip and keep the area dry, thereby improving the child's comfort.

[0025] Next, a fixing structure 5 is provided on the inner top side of the fixing sleeve 2 for fixing the indwelling needle extension tube and its connector and other components. The fixing structure 5 includes an extension tube groove 501 and a receiving groove 502 formed on the inner top side of the fixing sleeve 2. The extension tube groove 501 is used to receive and fix the extension tube part of the indwelling needle to prevent it from shifting or tangling during use. The width of the extension tube groove 501 is set according to the diameter of common indwelling needle tubes to ensure that the extension tube can be smoothly inserted and fixed. An elastic protective pad is also provided on the inner wall of the extension tube groove 501.

[0026] Furthermore, the receiving groove 502 is used to accommodate the connector portion of the indwelling needle. One end of the extension tube groove 501 is connected to the limiting groove 403, and the other end is connected to the receiving groove 502. This embodiment takes a Y-shaped connector indwelling needle as an example. The receiving groove 502 has an inlet 503 and an outlet 504 for the indwelling needle connector to enter and exit. The inlet 503 adopts an open design to facilitate the insertion of the indwelling needle connector. The outlet 504 includes elastic arms 505 symmetrically arranged at the outlet of the receiving groove 502 and a retaining post 506 located in the middle of the outlet.

[0027] Specifically, the main body of the elastic arm 505 is a willow-leaf shape, wider in the middle and narrower at both ends, and is made of medical-grade elastic plastic material, such as thermoplastic elastomer (TPE). One end is integrally molded and connected to the receiving groove 502, while the other end is a free end that bends inward. An arc-shaped groove 5051, adapted to the shape of the Y-shaped interface, is provided on the inner side of the free end. The elastic arm is 2-3 cm long, the arc-shaped groove is 0.5-0.8 cm deep, and its width matches the width of the Y-shaped interface branch. The retaining post 506, made of medical-grade rigid plastic material, such as polyoxymethylene (POM), is located in the middle of the outlet 504 and is used to retain the Y-shaped bifurcation of the indwelling needle connector. The retaining post is 0.8-1 cm high, and its width matches the gap of the Y-shaped bifurcation.

[0028] When the Y-shaped interface of the indwelling needle connector extends from the outlet 503, the Y-shaped fork is engaged with the retaining post 506. Simultaneously, the tubing at both ends is engaged with the arc-shaped grooves at the free end of the elastic arm. Due to the willow-leaf-shaped structure of the elastic arm, the wider middle section undergoes greater elastic deformation during bending, generating sufficient elastic force to encircle the Y-shaped interface. This utilizes the shape and material elasticity of the elastic arm itself for secure encirclement. Furthermore, the arc-shaped groove and the encircling position are both located in the middle of the receiving groove outlet, effectively preventing the Y-shaped interface from contacting the edges of the receiving groove, avoiding pressure on the indwelling needle connector, and strengthening the fixation effect, ensuring it will not easily move or fall off. Additionally, when the Y-shaped connector of the indwelling needle is engaged with the retaining post 506, the cap of the Y-shaped connector is exposed outside the protective sleeve 2. When infusion is needed, the infusion device can be directly connected to the Y-shaped interface for infusion without opening the fixing sleeve, avoiding frequent operations that might cause anxiety and curiosity in active children.

[0029] When using the device, confirm that the indwelling needle has been correctly inserted into the child's vein, remove the needle core, leaving only the catheter in the vein. First, use a transparent dressing to initially fix the position of the indwelling needle tip. Then, place your hand on the soft pad 101 of the pad 1 through the opening of the fixing sleeve 2, ensuring that the position of the indwelling needle tip corresponds to the window 401 position on the upper surface of the fixing sleeve 2. Place the extension tube of the indwelling needle in the extension tube groove 501. Insert the indwelling needle connector into the receiving groove 502 from the inlet 503 until the Y-shaped interface cross is engaged with the locking post 506 at the outlet 504. At the same time, the two ends of the tubing are respectively engaged into the arc-shaped groove 5051 at the free end of the elastic arm 505. Through the connecting structure 3, wrap the first fixing strap 301 and the second fixing strap 302 around the fixing sleeve 2 and attach them to each other to ensure that the fixation is firm and not too tight to affect blood circulation. When intravenous infusion is needed, since the cap of the Y-shaped connector of the indwelling needle is exposed, the infusion device can be directly connected to the Y-shaped interface for infusion without opening the fixing sleeve 2, reducing the impact on active children.

[0030] 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 device for fixing an indwelling needle, characterized in that, include: A pad (1) has a soft pad layer (101) on its upper surface and a connecting structure (3) on its side. The fixing sleeve (2) is arranged around the upper surface of the pad (1) in an arch shape. The front and rear ends of the fixing sleeve (2) are provided with openings for people to enter and exit. The upper surface of the fixing sleeve (2) is provided with a visible structure (4), and the inner top side is provided with a fixing structure (5) for fixing the indwelling needle.

2. The indwelling needle fixation device according to claim 1, characterized in that: The visible structure (4) includes a window (401) opened on the upper surface of the fixed sleeve (2) and corresponding to the position of the indwelling needle tip, and a transparent baffle (402) set at the position of the window (401).

3. The indwelling needle fixation device according to claim 2, characterized in that: The transparent baffle (402) has a limiting groove (403) for fixing the needle on the side that contacts the needle tip, and the cross section of the limiting groove (403) matches the needle tip.

4. The indwelling needle fixation device according to claim 3, characterized in that: The fixing structure (5) includes an extension tube groove (501) opened on the top side inside the fixing sleeve (2) and a receiving groove (502) for accommodating the indwelling needle connector. One end of the extension tube groove (501) is connected to the limiting groove (403), and the other end is connected to the receiving groove (502).

5. The indwelling needle fixation device according to claim 4, characterized in that: The receiving groove (502) has an inlet (503) and an outlet (504) for the insertion of the indwelling needle connector.

6. The indwelling needle fixation device according to claim 5, characterized in that, The outlet (504) includes: The elastic arm (505) is symmetrically arranged at the outlet (504) of the receiving groove (502). One end of the arm is connected to the receiving groove (502), and the other end is a free end that is bent inward. An arc-shaped groove (5051) adapted to the shape of the Y-shaped interface is provided on the inner side of the free end. A locking post (506) is located in the middle of the outlet (504) and is used to lock the Y-shaped fork of the indwelling needle connector.

7. The indwelling needle fixation device according to claim 6, characterized in that: The connection structure (3) includes a first fixing band (301) and a second fixing band (302) respectively disposed on both sides of the pad (1). The first fixing band (301) is provided with a male hook and loop fastener (303), and the second fixing band (302) is provided with a female hook and loop fastener (304).

8. The indwelling needle fixation device according to claim 7, characterized in that: The top inner side of the fixing sleeve (2) is also provided with a sweat-absorbing layer (6) around the outer ring of the window (401).

9. The indwelling needle fixation device according to claim 8, characterized in that: Elastic protective pads are provided on the inner walls of the limiting groove (403) and the extension tube groove (501).

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