PICC puncture auxiliary device

Abstract

This utility model discloses a PICC puncture auxiliary device, including a base, a height adjustment component, an operating table, a support rod, and a cantilever belt. The height adjustment component includes a turbine, a worm gear, and a stud. A sleeve is provided at the upper end of the base. The turbine is rotatably mounted on the upper end of the sleeve via a bearing. The worm gear meshes with the turbine. The stud is inserted into the sleeve from the center of the turbine and threadedly connected to the center of the turbine. A limit block is provided at the lower end of the stud. A limit groove is formed in the sleeve. The operating table is located at the upper end of the stud. The cantilever belt is connected to the operating table via the support rod. The height adjustment component composed of the turbine, worm gear, and stud enables stepless adjustment of the operating table height, making it suitable for beds of different heights. At the same time, the turbine and worm gear mechanism has a reverse self-locking characteristic, which can ensure locking at any height. Furthermore, the support rod and cantilever belt can reliably suspend the patient's arm at a suitable height and angle without the need for manual support by medical staff.

Description

Technical Field

[0001] This utility model relates to the field of medical auxiliary device technology, and in particular to a PICC puncture auxiliary device. Background Technology

[0002] Peripherally inserted central catheter (PICC) is a medical procedure in which a catheter is inserted through a peripheral vein, with its tip reaching the vena cava. As a medium- to long-term venous access technique, it is primarily used for long-term intravenous infusion, chemotherapy, administration of irritating fluids, parenteral nutrition, and other treatments, and has been widely adopted in clinical practice. Its core advantages lie in reducing the number of repeated punctures, protecting blood vessels, and minimizing the risk of drug irritation, thus ensuring safe intravenous infusion for patients.

[0003] The applicant discovered that, in order to accommodate different bed heights and ensure that the operating table could match the patient's lying height, the hospital used a wooden board placed under the patient as an operating table, relying on the pressure of the patient's body to fix the board in place. This board, which was only fixed by the pressure of the patient's body, was prone to shifting or falling during use, posing a safety hazard, and its stability and comfort were poor.

[0004] Prior to PICC line insertion, the patient's arm must be thoroughly disinfected and draped with a sterile sheet. During this process, the patient's arm needs to be abducted to a 90° angle with the torso. Therefore, an assistant must continuously raise the patient's arm and keep it abducted during disinfection. This not only requires additional manpower but also may cause fatigue for medical staff due to prolonged arm elevation, and increases patient discomfort. Summary of the Invention

[0005] This invention provides a PICC puncture auxiliary device. The technical problem to be solved is that the height of the device can be adjusted according to the height of the hospital bed, and the patient's arm can be suspended for disinfection.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A PICC puncture assistance device includes a base, a height adjustment assembly, an operating platform, a support rod, and a cantilever belt. The height adjustment assembly includes a turbine, a worm gear, and a stud. A sleeve is provided at the upper end of the base. The turbine is rotatably mounted on the upper end of the sleeve via a bearing. The worm gear meshes with the turbine. The stud is inserted into the sleeve from the center of the turbine and threadedly connected to the center of the turbine. A limit block is provided at the lower end of the stud. A limit groove is formed in the sleeve. The operating platform is located at the upper end of the stud. The cantilever belt is connected to the operating platform via the support rod.

[0007] As a further improvement to the above technical solution: The upper end of the sleeve is provided with an extension, the worm is rotatably disposed in the extension, one end of the worm extends out of the extension and is fixedly provided with an L-shaped rocker arm.

[0008] A first insert block is fixedly mounted on the upper end of the base, and a first slot is provided on one side of the lower end of the sleeve. The first insert block can be inserted into the first slot and hinged to it. When the first insert block and the sleeve are coaxial, they can be threadedly connected simultaneously by a fixing bolt. A second insert block is provided on the lower end of the operating table, and a second slot is provided on the upper end of the stud. The second insert block can be inserted into the second slot and hinged to it. When the second insert block and the stud are coaxial, they can be threadedly connected simultaneously by a fixing bolt. The base and sleeve, and the operating table and stud are all hinged connections, which can be locked with fixing bolts, allowing the entire device to be quickly folded, reducing its size and facilitating movement and storage between different wards.

[0009] The cantilever belt is connected to the support rod via an adjustable belt. One end of the adjustable belt is suspended from the support rod via a hanging ring, and the other end is adjustablely connected to itself via a D-ring buckle. It is then connected to the cantilever belt via a hanging ring, thereby adjusting the height of the cantilever belt.

[0010] The lower end of the support rod is connected to the operating table via a clamping assembly. The clamping assembly includes a U-shaped locking block, an adjusting bolt, and a pressure block. One end of the adjusting bolt is inserted into the U-shaped locking block from one side and is threadedly connected to the U-shaped locking block. The pressure block is disposed inside the U-shaped locking block and is fixedly connected to one end of the adjusting bolt.

[0011] Optionally, the support rod is a telescopic rod, and its upper end extends horizontally outward to be provided with an infusion hook. A drawer is provided at the lower end of the operating table.

[0012] The height of the cantilever strap can be finely adjusted via the adjustable strap and D-ring buckle. The support rod is telescopic and integrates an infusion hook. The clamping assembly allows the support rod to be flexibly fixed in different positions on the operating table, and the drawer can be used to store frequently used items. These designs greatly enhance the adaptability and functionality of the device, meeting diverse clinical needs.

[0013] The base is equipped with braked casters at its lower end. These braked casters allow the device to move flexibly and can be fixed in place by braking, ensuring stability during operation.

[0014] Compared with the prior art, the present invention achieves at least the following beneficial effects: The PICC puncture auxiliary device of the present invention realizes the stepless adjustment of the operating table height through a height adjustment component composed of a turbine, worm gear and stud, which is suitable for hospital beds of different heights. At the same time, the turbine worm gear mechanism has a reverse self-locking characteristic, which can ensure locking at any height. Meanwhile, through the support rod and cantilever belt, the patient's arm can be reliably suspended at a suitable height and angle without the need for medical staff to manually lift it. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a structural diagram of one embodiment of the present utility model; Figure 2 This is a structural diagram of the folded state in one embodiment of the present invention; Figure 3 This is a partial exploded view of one embodiment of the present invention; Figure 4 This is a structural diagram of the support rod and cantilever belt in one embodiment of the present invention.

[0017] The following components are labeled in the diagram: 1. Base; 2. Height adjustment assembly; 3. Operating table; 4. Support rod; 5. Cantilever belt; 6. Fixing bolt; 11. Sleeve; 12. First insert block; 13. Caster wheel; 21. Turbine; 22. Worm gear; 23. Stud; 31. Second insert block; 32. Drawer; 41. Clamping assembly; 42. Infusion hook; 51. Adjustment belt; 52. Hanging ring; 53. D-ring; 111. Limiting groove; 112. Extension; 113. Second slot; 221. Rocker arm; 231. Limiting block; 232. Second slot; 411. U-shaped locking block; 412. Adjusting bolt; 413. Pressure block. Detailed Implementation

[0018] The present application will now be described in detail with reference to exemplary embodiments shown in the accompanying drawings. However, it should be understood that the present application may be implemented in many different forms and should not be construed as limited to the embodiments set forth herein. These embodiments are provided herein to make the disclosure of the present application more complete and to fully convey the concept of the present application to those skilled in the art.

[0019] In the description of this application, it should be understood that the terms "center", "lateral", "longitudinal", "front", "rear", "left", "right", "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application 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. Therefore, they should not be construed as limiting the scope of protection of this application.

[0020] like Figure 1-4 As shown, a PICC puncture auxiliary device of this utility model includes a base 1, a height adjustment component 2, an operating table 3, a support rod 4, and a cantilever belt 5.

[0021] The lower end of the base 1 is equipped with casters 13 with brakes for easy movement and fixation. A first insert block 12 is welded to the upper end of the base 1. A sleeve 11 is provided on the upper end of the first insert block 12, and the sleeve 11 is hinged to the first insert block 12 via a first slot 113 at its lower end. When the sleeve 11 and the base 1 are in a straight line, a fixing bolt 6 can be simultaneously screwed into the corresponding threaded holes on the first insert block 12 and the sleeve 11 to fix them. During operation, loosening and removing the fixing bolt 6 allows the sleeve 11 to be laid down, achieving folding.

[0022] The height adjustment assembly 2 includes a turbine 21, a worm gear 22, and a stud 23. The turbine 21 is rotatably mounted on the upper end of the sleeve 11 via bearings. The upper end of the sleeve 11 has an extension 112, and the worm gear 22 is mounted in the extension 112 via bearings and meshes with the turbine 21. One end of the worm gear 22 extends out of the extension 112 and is fixed with an L-shaped rocker arm 221 for easy operation by the operator.

[0023] The stud 23 is inserted into the sleeve 11 through the threaded hole in the center of the turbine 21, forming a threaded drive with the turbine 21. A limiting block 231 is provided at the lower end of the stud 23, and a limiting groove 111 is formed on the inner wall of the sleeve 11. The limiting block 231 can slide up and down within the limiting groove 111, thus restricting the stud 23 to axial movement only and preventing rotation. Shaking the rocker arm 221 drives the worm gear 22 to rotate, which in turn drives the turbine 21 to rotate, causing the stud 23 to rise or fall relative to the sleeve 11. Due to the self-locking property of the turbine 21 and the worm gear 22, the operating platform 3 can remain stably at any height. Optionally, in another embodiment, a motor can be used to drive the worm gear to rotate, and the raising and lowering of the operating platform can be controlled by a button, increasing convenience.

[0024] The operating table 3 replaces the traditional wooden board, providing a stable and flat surface for pipe placement operations. The lower end of the operating table 3 is provided with a second insert 31, and the upper end of the stud 23 is provided with a second slot 232. The second insert 31 and the second slot 232 are hinged together, and their connection and fixing methods are the same as those of the base 1 and the sleeve 11. They are locked or folded by another fixing bolt 6.

[0025] Optionally, the sleeve 11 includes a body and an end cap. The end cap is located on the upper end of the body and is threadedly connected to the body. The worm 22 and the turbine 21 are both located at the end cap, so that the operating table 3 can be disassembled for disinfection after use by unscrewing the end cap.

[0026] The lower end of the support rod 4 is connected to the operating table 3 via a clamping assembly 41. The clamping assembly 41 includes a U-shaped locking block 411, an adjusting bolt 412, and a pressure block 413. One end of the adjusting bolt 412 is inserted into the U-shaped locking block 411 from one side and is threadedly connected to the U-shaped locking block 411. The pressure block 413 is disposed within the U-shaped locking block 411 and is welded to one end of the adjusting bolt 412 for fixation. Optionally, the adjusting bolt can be a wing bolt or a bolt with an operating handle for manual operation.

[0027] By engaging the U-shaped locking block 411 at the edge of the operating table 3 and tightening the adjusting bolt 412, the pressure block 413 will move inward, clamping the operating table 3 together with the inner wall of the U-shaped locking block 411, thus firmly fixing the support rod 4. This allows the support rod 4 to be installed at any edge of the operating table 3, offering wide adaptability. The support rod 4 itself is a telescopic rod, and its height can be adjusted via its own locking mechanism.

[0028] The upper end of the support rod 4 is bent outward horizontally and is equipped with an infusion hook 42, which can be used to hang infusion bags and other items. The support rod 4 includes a fixed rod and a movable rod. The lower end of the fixed rod is welded and fixed to the U-shaped locking block 411, and the upper end is provided with an opening, and the opening end is threaded with a fastening bolt. The lower end of the movable rod can be telescopically inserted into the fixed rod from the upper end of the fixed rod and can be fixed relative to it by the fastening bolt.

[0029] The arm support belt 5 is made of soft and breathable medical fabric and is used to support the patient's arm. The arm support belt 5 is connected to the support rod 4 via an adjusting strap 51. Specifically, one end of the adjusting strap 51 is folded over and sewn in place, then hung on the horizontal section of the support rod 4 or inside the infusion hook 42 via a hanging loop 52. The other end is folded back and passed through a D-ring 53, then connected to the arm support belt 5 via another hanging loop 52. By pulling the position of the adjusting strap 51 within the D-ring 53, the final height of the arm support belt 5 can be easily adjusted to suit the needs of different patients. Furthermore, after use, the arm support belt 5 and the adjusting strap 51 can be disassembled and soaked for disinfection.

[0030] In addition, a drawer 32 is installed below the operating table 3, which can be used to store commonly used consumables required for PICC catheter placement, such as disinfectant swabs, dressings, and tape, for easy access.

[0031] In use, first release the brake on the caster wheel 13, push the device next to the bed, and lock the brake after it is close to the bed. Adjust the operating table 3 to a suitable height according to the bed height by shaking the rocker arm 221, ensuring it is level with the patient's body when lying flat. Secure the support rod 4 to the edge of the operating table 3 closest to the patient using the clamping assembly 41, and adjust the extension length of the support rod 4 to a suitable position. Place the patient's arm to be punctured into the arm suspension belt 5, and fine-tune the arm suspension height by adjusting the belt 51 and the D-ring buckle 53 to ensure a relaxed and easy-to-disinfect posture. Afterward, medical staff can independently perform arm disinfection and draping. After operation, the device can be folded and stored to save space.

[0032] It should be understood that all the above embodiments are exemplary and not restrictive. Various modifications or variations made by those skilled in the art to the specific embodiments described above under the concept of this utility model should be within the protection scope of this utility model.

Claims

1. A PICC puncture assisting device, characterized in that: The device includes a base (1), a height adjustment assembly (2), an operating table (3), a support rod (4), and a cantilever belt (5). The height adjustment assembly (2) includes a turbine (21), a worm (22), and a stud (23). A sleeve (11) is provided at the upper end of the base (1). The turbine (21) is rotatably mounted on the upper end of the sleeve (11) via a bearing. The worm (22) meshes with the turbine (21). The stud (23) is inserted into the sleeve (11) from the center of the turbine (21) and is threadedly connected to the center of the turbine (21). A limit block (231) is provided at the lower end of the stud (23). A limit groove (111) is opened in the sleeve (11). The operating table (3) is located at the upper end of the stud (23). The cantilever belt (5) is connected to the operating table (3) via the support rod (4).

2. The PICC access assist device of claim 1, wherein: The upper end of the sleeve (11) is provided with an extension (112), and the worm (22) is rotatably disposed in the extension (112). One end of the worm (22) extends out of the extension (112) and is fixedly provided with an L-shaped rocker arm (221).

3. The PICC puncture auxiliary device according to claim 1 or 2, characterized in that: The base (1) is fixedly provided with a first insert (12) at the upper end, and a first slot (113) is provided on one side of the lower end of the sleeve (11). The first insert (12) can be inserted into the first slot (113) and hinged to the first slot (113). When the first insert (12) and the sleeve (11) are coaxial, they can be threadedly connected to the first insert (12) and the sleeve (11) simultaneously by fixing bolts (6). The operating table (3) is provided with a second insert (31) at the lower end, and a second slot (232) is provided at the upper end of the stud (23). The second insert (31) can be inserted into the second slot (232) and hinged to the second slot (232). When the second insert (31) and the stud (23) are coaxial, they can be threadedly connected to the second insert (31) and the stud (23) simultaneously by fixing bolts (6).

4. The PICC access assist device of claim 1, wherein: The cantilever belt (5) is connected to the support rod (4) via an adjusting belt (51). One end of the adjusting belt (51) is suspended from the support rod (4) via a hanging ring (52), and the other end is adjustablely connected to itself via a D-ring buckle (53). It is then connected to the cantilever belt (5) via the hanging ring (52) to adjust the height of the cantilever belt (5).

5. The PICC access assist device of claim 1, wherein: The lower end of the support rod (4) is connected to the operating table (3) through the clamping assembly (41). The clamping assembly (41) includes a U-shaped locking block (411), an adjusting bolt (412), and a pressure block (413). One end of the adjusting bolt (412) is inserted into the U-shaped locking block (411) from one side and is threadedly connected to the U-shaped locking block (411). The pressure block (413) is provided inside the U-shaped locking block (411) and is fixedly connected to one end of the adjusting bolt (412).

6. The PICC access assist device of claim 1, wherein: The support rod (4) is a telescopic rod, and an infusion hook (42) is provided after the upper end extends horizontally outward.

7. The PICC access assist device of claim 1, wherein: The lower end of the base (1) is provided with a universal wheel (13) with brakes.

8. The PICC access assist device of claim 1, wherein: The lower end of the control panel (3) is provided with a drawer (32).

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