Fixing and protecting device for tail end of PICC (Peripherally Inserted Central Catheter)

Abstract

The utility model provides a fixed protection device for the tail end of PICC catheter, including connecting tube, lead tube and hand-held piece, the front end of connecting tube is fixedly equipped with lead tube, the tail end of connecting tube both sides is fixedly equipped with injection tube, the injection tube is equipped with injection head, the bottom of connecting tube is fixedly equipped with elastic band. Through mutual cooperation of an elastic belt, a connecting rod, a guide groove, a pressing block and a movable rod, a mounting sleeve and a clamping head are in butt joint, one end of the connecting rod extends into the inner side of the clamping head, a rolling wheel and the guide groove roll in an attached mode, the connecting rod is guided to the inner side of a limiting groove through the guide groove, and therefore the clamping head is clamped in the limiting groove; and under the extrusion action of a second spring, a connecting rod and a limiting groove can be clamped, a clamping head and a mounting sleeve are limited, so that elastic belts are connected, the arms can be wound and mounted through the elastic belts, and the connecting pipe is mounted.

Description

Technical Field

[0001] This utility model relates to medical devices, and in particular to a fixing and protective device for the tail end of a PICC catheter, belonging to the field of PICC catheter technology. Background Technology

[0002] PICC is a peripherally inserted central venous catheter, which is inserted through the basilic vein, median cubital vein, cephalic vein, brachial vein, or external jugular vein in the upper limb. The tip of the catheter is located in the superior or inferior vena cava. In layman's terms, it is a soft, thin tube inserted into a peripheral vein, mainly the upper arm vein, and leading to a large central vein in the heart. It has many advantages, such as simple operation, high puncture success rate, long catheter time, few complications, and low insertion cost.

[0003] A search of relevant technologies revealed a PICC catheter that addresses the issues of existing catheters, where positive or negative pressure during use can cause external fluid to flow in or internal fluid to flow out, increasing the risk of thrombosis and reducing catheter safety. Furthermore, existing catheters are cumbersome to assemble and prone to leakage during drug infusion and blood collection, reducing sealing effectiveness and ease of use. Publication number CN208959079U discloses a PICC catheter that, through the extension tube, maintains a tight seal with the locking structure while facilitating blood return observation during implantation and post-implantation care. The connector has connection holes for easy fixation with a catheter fixation device. The incision ensures that internal fluid can flow out under positive pressure and external fluid can flow in under negative pressure. When balanced, the tubing closes, preventing both external and internal fluid flow and reducing the risk of thrombosis.

[0004] During use, patients' daily activities are restricted. If the PICC tube falls out, re-puncture is very harmful to the patient. Currently, it is generally fixed by externally attaching an outer membrane, but it is easy to fall off after the skin sweats. Therefore, the PICC tube is usually externally fixed and protected to prevent it from shifting or falling out.

[0005] Therefore, a fixing and protection device for the tail end of a PICC catheter is proposed. Utility Model Content

[0006] In view of this, the present invention provides a fixing and protection device for the tail end of a PICC catheter to solve or alleviate the technical problems existing in the prior art, and at least provides a beneficial option.

[0007] The technical solution of this utility model is a fixing and protection device for the tail end of a PICC catheter, comprising: a connecting tube, a guide tube, and a handheld piece. A guide tube is fixedly installed at the front end of the connecting tube, and injection tubes are fixedly installed at the tail ends on both sides of the connecting tube. An injection head is provided on the injection tube. An elastic band is fixedly installed at the bottom of the connecting tube, and an arc-shaped plate is fixedly installed between the elastic bands. A flexible plate is movably installed at the bottom of the arc-shaped plate, and a soft pad is provided at the bottom of the flexible plate. A locking head and an installation sleeve are fixedly installed at the bottom of the elastic bands respectively. A connecting rod corresponding to the locking head is movably installed on the inner side of the installation sleeve. A limit groove is provided inside the locking head. Pressing blocks are movably installed on both sides of the installation sleeve via sliding rods. The bottom of the pressing block is fixedly installed between the bottom of the pressing block and the connecting rod, and a linkage rod is fixedly installed at the bottom of the pressing block.

[0008] More preferably, a handheld piece is fixedly installed on the outside of the connecting tube, and an adhesive layer is provided on the bottom of the handheld piece.

[0009] More preferably, the connecting tube and the elastic band are fixedly installed by an installation ring, the two sides of the flexible plate are fixedly connected to the inner side of the arc plate, and the flexible plate and the arc plate are movably connected by a first spring.

[0010] More preferably, a roller is rotatably mounted on the outer side of the connecting rod, and a guide groove corresponding to the roller is provided on the inner side of the engaging head.

[0011] More preferably, the mounting sleeve and the connecting rod are slidably mounted together via a movable rod, and a second spring is sleeved on the outer side of the movable rod between the connecting rods.

[0012] More preferably, the mounting sleeve is provided with a movable groove for the sliding rod to slide, a limiting sleeve corresponding to the sliding rod is fixedly installed on the top of the mounting sleeve, a sliding block is fixedly installed on one side of the linkage rod, and a sliding groove corresponding to the sliding block is provided on the bottom of the mounting sleeve.

[0013] The present invention has the following advantages due to the adoption of the above technical solution:

[0014] I. This utility model utilizes the interplay of an elastic band, connecting rod, guide groove, pressing block, and movable rod. Through the connection between the mounting sleeve and the engaging head, one end of the connecting rod extends into the inner side of the engaging head, causing the rolling wheel to roll against the guide groove. The guide groove guides the connecting rod to the inner side of the limiting groove. The compression of the second spring engages the connecting rod with the limiting groove, limiting the engagement head and the mounting sleeve, thus connecting the elastic bands. The elastic bands can be used to wrap around the arm for installation, thereby installing the connecting tube. During disassembly, pressing the pressing block causes the sliding rod to slide along the outer side of the movable rod, compressing the connecting rod against the second spring and separating the connecting rod from the limiting groove, thus separating the engaging head from the mounting sleeve. This makes the process more convenient.

[0015] II. This utility model, through the interaction of an arc-shaped plate, a soft plate, a soft pad, and a first spring, causes the arc-shaped plate and the soft plate to deform during the process of the elastic band wrapping around the arm, so that the soft plate can fit the shape of the arm. At the same time, the compression action of the first spring can effectively compress the soft plate when it fits the outside of the arm, preventing it from not fitting tightly to the patient's skin and thus becoming loose.

[0016] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a perspective view of the appearance of this utility model;

[0019] Figure 2 This is a three-dimensional structural diagram of the flexible board of this utility model;

[0020] Figure 3 This is a three-dimensional structural diagram of the internal structure of the locking head of this utility model;

[0021] Figure 4 This is a three-dimensional structural diagram of the mounting sleeve of this utility model;

[0022] Figure 5This is a three-dimensional structural diagram of the sliding block and sliding groove of this utility model.

[0023] Reference numerals: 1. Connecting tube; 2. Lead tube; 3. Handheld piece; 4. Injection tube; 5. Injection head; 6. Mounting ring; 7. Elastic band; 8. Arc-shaped plate; 9. Soft plate; 10. Soft pad; 11. First spring; 12. Engaging head; 13. Mounting sleeve; 14. Guide groove; 15. Limiting groove; 16. Connecting rod; 17. Roller; 18. Movable rod; 19. Second spring; 20. Sliding rod; 21. Movable groove; 22. Limiting sleeve; 23. Pressing block; 24. Linkage rod; 25. Sliding block; 26. Sliding groove. Detailed Implementation

[0024] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0025] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0026] like Figures 1-5 As shown, this utility model embodiment provides a fixing and protection device for the tail end of a PICC catheter, including: a connecting tube 1, a guide tube 2, and a handheld piece 3. The guide tube 2 is fixedly installed at the front end of the connecting tube 1, and injection tubes 4 are fixedly installed at the tail ends on both sides of the connecting tube 1. Injection heads 5 are provided on the injection tubes 4. An elastic band 7 is fixedly installed at the bottom of the connecting tube 1, and an arc-shaped plate 8 is fixedly installed between the elastic bands 7. A flexible plate 9 is movably installed at the bottom of the arc-shaped plate 8, and a soft pad 10 is provided at the bottom of the flexible plate 9. A locking head 12 and an installation sleeve 13 are fixedly installed at the bottom of the elastic bands 7 respectively, and the inner side of the installation sleeve 13 is movable. A connecting rod 16 corresponding to the locking head 12 is installed. The locking head 12 has a limiting groove 15 inside. Pressing blocks 23 are movably installed on both sides of the mounting sleeve 13 via sliding rods 20. The bottom of the pressing block 23 is fixedly installed between the connecting rod 16 and the bottom of the pressing block 23. A linkage rod 24 is fixedly installed on the bottom of the pressing block 23. The mounting sleeve 13 has a movable groove 21 for the sliding rod 20 to slide. A limiting sleeve 22 corresponding to the sliding rod 20 is fixedly installed on the top of the mounting sleeve 13. A sliding block 25 is fixedly installed on one side of the linkage rod 24. A sliding groove 26 corresponding to the sliding block 25 is provided on the bottom of the mounting sleeve 13.

[0027] By connecting the mounting sleeve 13 and the engaging head 12, one end of the connecting rod 16 extends into the inner side of the engaging head 12, causing the rolling wheel 17 to roll in close contact with the guide groove 14. The guide groove 14 guides the connecting rod 16 to the inner side of the limiting groove 15. The compression action of the second spring 19 enables the connecting rod 16 to engage with the limiting groove 15, thus limiting the engagement head 12 and the mounting sleeve 13, thereby connecting the elastic bands 7. The elastic bands 7 can be used to wrap and install the arms.

[0028] Reference Figure 2 A handheld piece 3 is fixedly installed on the outside of the connecting tube 1. An adhesive layer is provided at the bottom of the handheld piece 3. The connecting tube 1 and the elastic band 7 are fixedly installed through the mounting ring 6. The two sides of the flexible plate 9 are fixedly connected to the inner side of the arc plate 8. The flexible plate 9 and the arc plate 8 are movably connected through the first spring 11.

[0029] As the elastic band 7 wraps around the arm, the curved plate 8 and the soft plate 9 deform, allowing the soft plate 9 to conform to the shape of the arm. At the same time, the compression action of the first spring 11 allows the soft plate 9 to be effectively compressed when it conforms to the outside of the arm.

[0030] Reference Figure 3 and Figure 4 A rolling wheel 17 is rotatably mounted on the outer side of the connecting rod 16. A guide groove 14 corresponding to the rolling wheel 17 is provided on the inner side of the engaging head 12. The mounting sleeve 13 is slidably mounted to the connecting rod 16 through a movable rod 18. A second spring 19 is sleeved on the outer side of the movable rod 18 between the connecting rods 16.

[0031] The guide groove 14 can cooperate with the roller 17, which allows the connecting rod 16 to be easily guided to the roller 17 during insertion, making it more convenient to use. The movable rod 18 allows the connecting rod 16 to slide smoothly, thus making it more stable during use.

[0032] In operation, this invention works as follows: The mounting sleeve 13 aligns with the engaging head 12, allowing one end of the connecting rod 16 to extend into the inner side of the engaging head 12. This causes the rolling wheel 17 to roll against the guide groove 14, guiding the connecting rod 16 to the inner side of the limiting groove 15. The compression of the second spring 19 engages the connecting rod 16 with the limiting groove 15, limiting the engagement head 12 and the mounting sleeve 13, thus connecting the elastic bands 7. The elastic bands 7 can be used to wrap around the arms for installation, thereby installing the connecting tube 1. During disassembly, pressing... The pressing block 23 utilizes the sliding rod 20 to drive the connecting rod 16 to slide along the outside of the movable rod 18, causing the connecting rod 16 to press against the second spring 19, separating the connecting rod 16 from the limiting groove 15, thereby separating the locking head 12 from the mounting sleeve 13, making it more convenient to use. During the process of wrapping the arm with the elastic band 7, the arc plate 8 and the soft plate 9 are deformed, allowing the soft plate 9 to conform to the shape of the arm. At the same time, the pressing action of the first spring 11 allows the soft plate 9 to be effectively pressed when it is fitted to the outside of the arm, preventing it from not being able to fit tightly to the patient's skin and thus becoming loose.

[0033] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this utility model, and these should all be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A fixing and protective device for the tail end of a PICC catheter, characterized in that: The device includes a connecting tube (1), a guide tube (2), and a handheld piece (3). The guide tube (2) is fixedly installed at the front end of the connecting tube (1). Injection tubes (4) are fixedly installed at the tail ends on both sides of the connecting tube (1). An injection head (5) is provided on the injection tube (4). An elastic band (7) is fixedly installed at the bottom of the connecting tube (1). An arc-shaped plate (8) is fixedly installed between the elastic bands (7). A flexible plate (9) is movably installed at the bottom of the arc-shaped plate (8). A soft pad (10) is provided at the bottom of the flexible plate (9). The bottom of the elastic band (7) is fixedly installed with a locking head (12) and a mounting sleeve (13). The inner side of the mounting sleeve (13) is movably installed with a connecting rod (16) corresponding to the locking head (12). The locking head (12) is provided with a limiting groove (15). The two sides of the mounting sleeve (13) are movably installed with pressing blocks (23) through sliding rods (20). The bottom of the pressing block (23) is fixedly installed with the connecting rod (16). The bottom of the pressing block (23) is fixedly installed with a linkage rod (24).

2. The fixing and protection device for the tail end of a PICC catheter according to claim 1, characterized in that: A handheld piece (3) is fixedly installed on the outside of the connecting pipe (1), and an adhesive layer is provided at the bottom of the handheld piece (3).

3. A fixing and protection device for the tail end of a PICC catheter according to claim 1, characterized in that: The connecting pipe (1) and the elastic band (7) are fixedly installed by the mounting ring (6), the two sides of the flexible plate (9) are fixedly connected to the inner side of the arc plate (8), and the flexible plate (9) and the arc plate (8) are movably connected by the first spring (11).

4. A fixing and protection device for the tail end of a PICC catheter according to claim 1, characterized in that: A roller (17) is rotatably mounted on the outer side of the connecting rod (16), and a guide groove (14) corresponding to the roller (17) is provided on the inner side of the engaging head (12).

5. A fixing and protection device for the tail end of a PICC catheter according to claim 1, characterized in that: The mounting sleeve (13) and the connecting rod (16) are slidably mounted together via a movable rod (18), and a second spring (19) is sleeved on the outside of the movable rod (18) between the connecting rods (16).

6. A fixing and protection device for the tail end of a PICC catheter according to claim 1, characterized in that: The mounting sleeve (13) is provided with a movable groove (21) for sliding rod (20) to slide. A limiting sleeve (22) corresponding to sliding rod (20) is fixedly installed on the top of the mounting sleeve (13). A sliding block (25) is fixedly installed on one side of the linkage rod (24). A sliding groove (26) corresponding to sliding block (25) is provided on the bottom of the mounting sleeve (13).

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