PICC catheter body position fixing support

Abstract

This utility model discloses a PICC placement positioning and fixation bracket, including a base with an internal controller, a lifting mechanism disposed within the base and electrically connected to the controller with one end extending out of the base, a fixed seat rotatably connected to the lifting mechanism, a fixing plate connected to the fixed seat at one end via a hinge shaft, a fixator disposed on the fixing plate, and a handle connected to the fixing seat and located on one side of the fixator for hand gripping. The fixing seat can be horizontally rotated to adjust its position and locked in the target position by a rotation self-locking mechanism. The fixing plate is connected to the fixing seat via an angle adjustment component, allowing the fixing plate to adjust its tilt angle around the hinge shaft in a vertical plane and to be locked in the target position by an angle locking mechanism. The fixator forms a fixing cavity for fixing the patient's arm. The fixing plate is tilted, and after the hand grips the handle, the fixing seat can rotate horizontally to adjust the arm abduction for easy puncture.

Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, specifically relating to a PICC placement positioning fixation bracket. Background Technology

[0002] PICC (Peripherally Inserted Central Catheter) placement involves inserting a central venous catheter via peripheral venous puncture. The catheter tip is positioned in the lower third of the superior vena cava, at the junction of the superior vena cava and the right atrium. This allows patients to receive medium- to long-term intravenous infusion therapy, reducing the pain of repeated venipunctures. Large, superficial veins near the elbow, such as the basilic vein, median cubital vein, or cephalic vein, are typically chosen for puncture. To facilitate ultrasound probe placement, the patient's arm should be abducted at 90 degrees and externally rotated, with the hand clenched into a fist to fully expose the vessel. However, in practice, patients unfamiliar with positioning techniques or excessive tension may prevent them from maintaining the correct position for an extended period, necessitating repeated adjustments or assistance from medical staff. This not only wastes manpower but may also hinder successful puncture due to the inability to maintain the correct positioning. Utility Model Content

[0003] In view of the technical problems existing in the prior art, this utility model provides a PICC placement body positioning fixation bracket.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A PICC placement positioning and fixation bracket includes a base with an internal controller, a lifting mechanism disposed within the base and electrically connected to the controller with one end extending out of the base, a fixed seat rotatably connected to the extended end of the lifting mechanism, a fixed plate connected to the fixed seat at one end via a hinge shaft, a fixator disposed on the fixed plate, and a handle connected to the fixed seat and located on one side of the fixator for hand gripping. The fixed seat can be horizontally rotated to adjust its position and locked in a target position by a rotational self-locking mechanism. The fixed plate is connected to the fixed seat via an angle adjustment component, allowing the fixed plate to adjust its tilt angle in a vertical plane around the hinge shaft and locked in a target position by an angle locking mechanism. The fixator includes a first fixing member connected to the fixed plate, a second fixing member axially connected to one end of the first fixing member, and a locking mechanism for locking the first and second fixing members together. When the first and second fixing members are locked, a fixation cavity for fixing the patient's arm is formed.

[0006] Furthermore, the inner surfaces of the first and second fixing members are both concave arc-shaped surfaces, and the inner surfaces of the first and second fixing members together form the fixing cavity. An elastic fixing mechanism is provided in the fixing cavity. The elastic fixing mechanism includes several springs connected at one end to the first or second fixing member, and a first arc-shaped plate and a second arc-shaped plate arranged symmetrically. The first arc-shaped plate is connected to the first fixing member through the spring, and the second arc-shaped plate is connected to the second fixing member through the spring. When the first and second fixing members are closed, the first and second arc-shaped plates form a cylindrical fixing structure with an adaptively adjustable diameter under the elastic force of the spring, for fitting and fixing the patient's arm.

[0007] Furthermore, a plurality of silicone protrusions are fixed to the inner surfaces of both the first and second arc-shaped plates, and the silicone protrusions are arranged at intervals along the axial direction of the cylindrical fixing structure.

[0008] Furthermore, the locking mechanism includes two extended ear plates, locking screw holes formed on the extended ear plates, and locking bolts screwed into the locking screw holes. The two extended ear plates are respectively located at the ends of the first fixing member and the second fixing member away from the pivot axis. The extended ear plates protrude from the edge of the first fixing member or the second fixing member in a direction away from the hinge axis.

[0009] Furthermore, a connecting block is screwed to the bottom surface of the fixed base, and a connecting rod connected to the rotary self-locking mechanism is provided at the lower end of the connecting block; the rotary self-locking mechanism includes a connecting seat with a connecting cavity and connected to the lifting mechanism at its lower end, a self-locking seat fixed to the outer wall of the connecting seat and having a mounting cavity, a locking pin installed in the mounting cavity, a return spring sleeved on the locking pin, and a plurality of locking pin holes provided on the outer periphery of the connecting rod and capable of engaging with the locking pin; a rotating shaft connected to the connecting rod is provided in the connecting cavity, so that the connecting rod can rotate horizontally in the connecting cavity; the locking pin holes are arranged at intervals along the circumference of the connecting rod; and the locking pin can reciprocate in the mounting cavity.

[0010] When the locking pin separates from the locking pin hole, it can compress the return spring, allowing the connecting rod to rotate horizontally to the required angle within the connecting cavity. After releasing the compression of the return spring, the locking pin is inserted into the corresponding locking pin hole under the elastic force of the return spring, thereby locking the angle of the fixed seat.

[0011] Furthermore, the top surface of the fixed base is provided with a sliding groove arranged along the length direction of the fixed base, and the angle adjustment component is slidably connected to the sliding groove; the angle adjustment component includes a bottom base block slidably connected to the sliding groove, a plurality of intermediate base blocks interconnected by magnetic blocks, and a top base block magnetically connected to the intermediate base blocks. The bottom base block is provided with a side wing on each side, and each side wing is provided with a through hole. The sliding groove is provided with a plurality of positioning holes arranged at intervals along the length direction of the sliding groove on both sides, and the through holes and positioning holes can be screwed and fixed by positioning bolts.

[0012] Furthermore, the two angle locking mechanisms are respectively disposed on both sides of the fixed plate. The angle locking mechanism includes a side plate vertically connected to the top surface of the fixed base, an arc-shaped sliding channel disposed on the side plate, a locking screw vertically fixed to the outer wall of the fixed plate and extending outward and passing through the corresponding sliding channel, and a locking nut screwed to the locking screw. Loosening the locking nut allows the locking screw to slide back and forth in the sliding channel. When the fixed plate rotates around the hinge axis, the locking screw moves synchronously along the arc-shaped trajectory of the sliding channel to achieve the adjustment of the tilt angle.

[0013] Furthermore, the lower end of the grip is connected to a first telescopic rod that can extend and retract along the height direction of the fixed seat via a universal connector. The lower end of the first telescopic rod is connected to a second telescopic rod that can extend and retract horizontally. The first telescopic rod is located inside the fixed seat and one end is located outside the fixed seat and connected to the second telescopic rod.

[0014] The grip is ring-shaped, and several spaced silicone sleeves are fixed to the inner side wall of the grip.

[0015] Furthermore, the outer wall of the base is provided with a display screen and several buttons that are electrically connected to the controller; the bottom surface of the base is provided with several omnidirectional rollers with brake pads.

[0016] Furthermore, the lifting mechanism is an electric push rod.

[0017] In summary, the beneficial effects of this utility model are as follows: First, mechanical locking replaces the traditional manual fixation method requiring multiple assistants, saving nursing manpower. Furthermore, once the patient's position is locked, repeated adjustments are unnecessary, and the patient passively maintains a more standard position, which helps improve the success rate of puncture. Second, the elastic fixation mechanism uses springs and an arc-shaped plate to achieve adaptive adjustment of the diameter of the fixation space, accommodating patients of various body types. Moreover, the structure of the fixator makes locking the arm convenient and quick, and the elastic fixation reduces pressure sores. Third, the tilt angle of the arm can be adjusted by adjusting the fixation plate, and the horizontal rotation of the fixation base facilitates adjustment of arm abduction, making standard position adjustment convenient. Attached Figure Description

[0018] Figure 1 This is a structural schematic diagram of a PICC placement body positioning fixation bracket provided by this utility model.

[0019] Figure 2 This is a schematic diagram of the rotating self-locking mechanism in this utility model.

[0020] In the diagram, 100-base, 110-display screen, 120-button, 130-universal caster, 200-lifting mechanism, 300-fixed seat, 310-connecting block, 311-connecting rod, 320-slide groove, 330-positioning hole, 400-fixing plate, 500-fixer, 510-first fixing component, 520-second fixing component, 530-extension ear plate, 540-first arc plate, 550-second arc plate, 560-spring, 570-swivel shaft, 600-grip. 610-Universal connector, 620-First telescopic rod, 630-Silicone sleeve, 700-Rotary self-locking mechanism, 710-Connecting seat, 720-Self-locking seat, 730-Locking pin, 740-Reset spring, 750-Locking pin hole, 800-Angle adjustment assembly, 810-Bottom block, 811-Side wing, 820-Intermediate block, 900-Angle locking mechanism, 910-Side plate, 911-Hinge shaft, 920-Sliding channel, 930-Locking screw, 940-Locking nut. Detailed Implementation

[0021] The present invention will be further illustrated below with reference to specific figures.

[0022] Please see Figure 1This utility model provides a PICC placement positioning support, including a base 100 with an internal controller, a lifting mechanism 200 disposed within the base 100 and electrically connected to the controller, with one end extending out of the base 100, a fixed seat 300 rotatably connected to the extended end of the lifting mechanism 200, a fixed plate 400 connected to the fixed seat 300 at one end via a hinge shaft 911, a retainer 500 disposed on the fixed plate 400, and a handle 600 connected to the fixed seat 300 and located on one side of the retainer 500 for hand gripping. The fixed seat 300 can be horizontally rotated to adjust its position and is locked in a target position by a rotation self-locking mechanism 700. The fixed plate 400 is connected to the fixed seat 300 via an angle adjustment assembly 800, allowing the fixed plate 400 to adjust its tilt angle around the hinge shaft 911 in a vertical plane, and is locked in a target position by an angle locking mechanism 900. The fixator 500 includes a first fixation member 510 connected to the fixation plate 400, a second fixation member 520 axially connected to one end of the first fixation member 510, and a locking mechanism for locking the first fixation member 510 and the second fixation member 520. When the first fixation member 510 and the second fixation member 520 are locked, a fixation cavity for fixing the patient's arm is formed. The forearm of the arm is placed in the fixator 500 and kept in an external rotation position. The fixation plate 400 is inclined and can form support under the posterior arm. After the hand grasps the handle 600, the fixation base 300 can rotate horizontally, thereby maintaining the arm abducted at 90 degrees. This allows the patient to passively maintain the required position for a long time, facilitating puncture and eliminating the need for multiple people to assist or repeated adjustments, thus saving manpower.

[0023] The outer wall of the base 100 is equipped with a display screen 110 and several buttons 120 that are electrically connected to the controller. The lifting mechanism 200 is an electric push rod, and the lifting height of the lifting mechanism 200 is electrically controlled, making adjustment convenient and quick. The bottom surface of the base 100 is equipped with several universal casters 130 with brake pads for easy movement of this bracket.

[0024] The inner surfaces of the first fixation member 510 and the second fixation member 520 are both concave arc-shaped surfaces, forming a fixing cavity. An elastic fixation mechanism is provided within the fixing cavity. This mechanism includes several springs 560 connected at one end to either the first fixation member 510 or the second fixation member 520, and a first arc-shaped plate 540 and a second arc-shaped plate 550 arranged symmetrically. The first arc-shaped plate 540 is connected to the first fixation member 510 via springs 560, and the second arc-shaped plate 550 is connected to the second fixation member 520 via springs 560. When the first fixation member 510 and the second fixation member 520 are closed, the first arc-shaped plate 540 and the second arc-shaped plate 550 form a cylindrical fixation structure with an adjustable diameter under the elastic force of the springs 560, for attaching to and fixing the patient's arm. The flexible fixation mechanism allows for adaptive diameter adjustment. The elastic deformation of spring 560 enables the curved plates to automatically adjust the fixation diameter according to the patient's arm size (as there are differences between children's and adults' arms), preventing excessive tightness that could obstruct blood circulation or excessive looseness that could lead to fixation failure. During catheter placement, slight patient movements (such as shoulder movement due to breathing) are absorbed by spring 560, preventing rigid fixation from directly transmitting vibrations to the puncture site and reducing pain perception. The contact surfaces between the two curved plates and the arm are curved, matching the curvature of the body surface during external rotation, reducing ultrasound artifacts caused by skin folding.

[0025] Several silicone protrusions (not shown in the figure) are fixed to the inner surfaces of both the first arc-shaped plate 540 and the second arc-shaped plate 550. The silicone protrusions are arranged at intervals along the axial direction of the cylindrical fixing structure. The axially spaced silicone strips form a continuous longitudinal air channel between the arm and the arc-shaped plate, increasing the surface area of ​​the skin and the outside air, and providing ventilation for the fixed arm.

[0026] The locking mechanism includes two extension lugs 530, locking screw holes formed on the extension lugs 530, and locking bolts screwed into the locking screw holes. The two extension lugs 530 are respectively located at the ends of the first fixing member 510 and the second fixing member 520 away from the hinge axis 911. The extension lugs 530 protrude from the edge of the first fixing member 510 or the second fixing member 520 in a direction away from the pivot axis 570. The outwardly protruding extension lugs 530 increase the bolt operating space, avoid interference between fingers and the edge of the fixing member, and facilitate one-handed tightening.

[0027] Please see Figure 2A connecting block 310 is screwed to the bottom surface of the fixed base 300. The lower end of the connecting block 310 has a connecting rod 311 that connects to the rotary self-locking mechanism 700. The rotary self-locking mechanism 700 includes a connecting base 710 with a connecting cavity, its lower end connected to the lifting mechanism 200; a self-locking base 720 fixed to the outer wall of the connecting base 710 and having a mounting cavity; a locking pin 730 installed in the mounting cavity; a return spring 740 sleeved on the locking pin 730; and several locking pin holes 750 located on the outer periphery of the connecting rod 311 and capable of engaging with the locking pin 730. A rotating shaft 570 connected to the connecting rod 311 is provided within the connecting cavity, allowing the connecting rod 311 to rotate horizontally within the connecting cavity. The locking pin holes 750 are spaced apart circumferentially along the connecting rod 311, allowing the locking pin 730 to reciprocate within the mounting cavity. When the locking pin 730 separates from the locking pin hole 750, it compresses the return spring 740, allowing the connecting rod 311 to rotate horizontally to the desired angle within the connecting cavity. After releasing the compression of the return spring 740, the locking pin 730, under the elastic force of the return spring 740, inserts into the corresponding locking pin hole 750, thus locking the angle of the fixing seat 300. After the arm is fixed, the angle of the fixing seat 300 can be adjusted quickly and easily by rotating it. Simply pull the locking pin 730 outward, rotate the fixing seat 300 to the target angle, and release the locking pin 730 to achieve positioning; the operation is simple and convenient.

[0028] The top surface of the fixing base 300 is provided with a sliding groove 320 arranged along the length of the fixing base 300, and the angle adjustment component 800 is slidably connected to the sliding groove 320. The angle adjustment component 800 includes a bottom base block 810 slidably connected to the sliding groove 320, a number of intermediate base blocks 820 interconnected by magnetic blocks, and a top base block magnetically connected to the intermediate base blocks 820. The bottom base block 810 has a side wing 811 on each side, and each side wing 811 has a through hole. The sliding groove 320 has a number of positioning holes 330 arranged at intervals along the length of the sliding groove 320 on both sides. The through holes and positioning holes 330 can be screwed and fixed by positioning bolts. The top surface of the top base block is an inclined surface. After the arm is fixed by the fixator 500, the inclined fixing plate 400 can make the hind arm tilted. The tilting of the hind arm can stretch the skin and superficial fascia of the upper limb, so that commonly used veins for catheterization such as the basilic vein and cephalic vein are closer to the body surface, reducing the tortuosity or overlap of blood vessels. The tilted position, utilizing gravity and the venous valve structure, reduces blood return resistance, making veins more full and reducing the difficulty of puncture caused by "collapsed veins." The angle adjustment component 800 allows the fixing plate 400 to be adjusted to different degrees of tilt. The tilt angle of the fixing plate 400 can be adjusted by moving the base block 810 along the slide groove 320 towards or away from the hinge shaft 911. Alternatively, the tilt angle of the fixing plate 400 can be changed by removing or adding the intermediate base block 820, thus altering the height of the angle adjustment component 800. Furthermore, a drawer is installed inside the fixing base 300 to store the disassembled angle adjustment component 800.

[0029] Two angle locking mechanisms 900 are respectively located on both sides of the fixed plate 400. Each angle locking mechanism 900 includes a side plate 910 vertically connected to the top surface of the fixed base 300, an arc-shaped sliding channel 920 on the side plate 910, a locking screw 930 vertically fixed to the outer wall of the fixed plate 400 and extending outwards to pass through the corresponding sliding channel 920, and a locking nut 940 screwed to the locking screw 930. Loosening the locking nut 940 allows the locking screw 930 to slide back and forth within the sliding channel 920. When the fixed plate 400 rotates around the hinge axis 911, the locking screw 930 moves synchronously along the arc-shaped trajectory of the sliding channel 920 to adjust the tilt angle. Angle adjustment and locking can be quickly completed by loosening / tightening the locking nut 940, requiring no complex tools or professional skills, meeting the high efficiency requirements of clinical operation. The side plate 910 has scale markings located on one side of the sliding channel 920, and the locking nut has a warning mark or indicator needle that corresponds to the scale markings, making the adjustment angle visible. Through the cooperation of the scale markings and the warning mark or indicator needle, the tilt angle of the fixed plate 400 is converted into a linearly readable scale value, the operation error is controllable, and the accuracy of body position adjustment is significantly improved.

[0030] The lower end of the grip 600 is connected via a universal connector 610 to a first telescopic rod 620 capable of telescopic movement along the height of the fixed base 300. The lower end of the first telescopic rod 620 is connected to a second telescopic rod capable of horizontal telescopic movement. The first telescopic rod 620 is located inside the fixed base 300, with one end outside the fixed base 300 connected to the second telescopic rod. When the hand rotates outward, the grip 600 automatically adjusts its posture via the universal joint, ensuring that the grip direction always aligns with the direction of hand movement. The first telescopic rod 620 and the second telescopic rod allow for vertical height adjustment of the grip 600, as well as adjustment of the distance between the grip 600 and the fixed base 300, enabling flexible arm movement to maintain the correct body position.

[0031] The grip 600 is ring-shaped, and several spaced silicone sleeves 630 are fixed to the inner side wall of the grip 600. The ring-shaped grip 600 provides a stable grip base, and the grip is more stable after the fingers are inserted into the silicone sleeves 630.

[0032] This fixation brace offers the following advantages: 1. Mechanical locking replaces traditional manual fixation methods requiring multiple assistants, saving nursing manpower. Once the patient is locked in position, repeated adjustments are unnecessary, and the passive, more standard position helps improve the success rate of punctures. 2. The flexible fixation mechanism uses spring 560 and an arc-shaped plate to adaptively adjust the diameter of the fixation space, accommodating patients of various body types. Furthermore, the structure of the fixator 500 allows for quick and easy arm locking, and the flexible fixation reduces pressure sores. 3. Adjusting the fixation plate 400 allows for adjustment of the arm's tilt angle, and the horizontal rotation of the fixation base 300 facilitates easy adjustment of arm abduction, ensuring convenient and standardized positioning.

[0033] The above are merely embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structure made using the contents of this utility model specification and drawings, whether directly or indirectly applied to other related technical fields, shall also be within the patent protection scope of this utility model.

Claims

1. A PICC catheter body position fixing support, characterized in that: The device includes a base with an internal controller, a lifting mechanism located within the base and electrically connected to the controller with one end extending out of the base, a fixed seat rotatably connected to the extended end of the lifting mechanism, a fixed plate connected to the fixed seat at one end via a hinge shaft, a fixator mounted on the fixed plate, and a handle connected to the fixed seat and located on one side of the fixator for hand gripping. The fixed seat can be horizontally rotated to adjust its position and locked in a target position by a rotational self-locking mechanism. The fixed plate is connected to the fixed seat via an angle adjustment component, allowing the fixed plate to adjust its tilt angle around the hinge shaft in a vertical plane and to be locked in a target position by an angle locking mechanism. The fixator includes a first fixing member connected to the fixed plate, a second fixing member axially connected to one end of the first fixing member, and a locking mechanism for locking the first and second fixing members together. When the first and second fixing members are locked, a fixation cavity for fixing the patient's arm is formed.

2. The PICC catheter body position fixing support of claim 1, wherein: The inner surfaces of the first and second fixing members are both concave arc-shaped surfaces, and their inner surfaces together form the fixing cavity. An elastic fixing mechanism is provided within the fixing cavity. The elastic fixing mechanism includes several springs connected at one end to the first or second fixing member, and a first arc-shaped plate and a second arc-shaped plate arranged symmetrically. The first arc-shaped plate is connected to the first fixing member via springs, and the second arc-shaped plate is connected to the second fixing member via springs. When the first and second fixing members are closed, the first and second arc-shaped plates form a cylindrical fixing structure with an adaptively adjustable diameter under the elastic force of the springs, for attaching and fixing the patient's arm.

3. The PICC indwelling body position fixing support of claim 2, characterized in that: Both the first arc-shaped plate and the second arc-shaped plate have several silicone protrusions fixed to their inner surfaces, and the silicone protrusions are arranged at intervals along the axial direction of the cylindrical fixed structure.

4. The PICC catheter body position fixing support of claim 2, characterized in that: The locking mechanism includes two extension ear plates, locking screw holes formed on the extension ear plates, and locking bolts screwed into the locking screw holes. The two extension ear plates are respectively located at the ends of the first fixing member and the second fixing member away from the pivot axis. The extension ear plates are formed by protruding from the edge of the first fixing member or the second fixing member in a direction away from the hinge axis.

5. The PICC indwelling body position fixing support of claim 1, characterized in that: A connecting block is screwed to the bottom surface of the fixed base. The lower end of the connecting block is provided with a connecting rod that is connected to the rotary self-locking mechanism. The rotary self-locking mechanism includes a connecting seat with a connecting cavity and connected to the lifting mechanism at its lower end; a self-locking seat fixed to the outer wall of the connecting seat and having a mounting cavity; a locking pin installed in the mounting cavity; a return spring sleeved on the locking pin; and a plurality of locking pin holes provided on the outer periphery of the connecting rod and capable of engaging with the locking pin. A rotating shaft connected to the connecting rod is provided in the connecting cavity, so that the connecting rod can rotate horizontally in the connecting cavity. The locking pin holes are arranged at intervals along the circumference of the connecting rod, and the locking pin can reciprocate in the mounting cavity. When the locking pin separates from the locking pin hole, it can compress the return spring, allowing the connecting rod to rotate horizontally to the required angle within the connecting cavity. After releasing the compression of the return spring, the locking pin is inserted into the corresponding locking pin hole under the elastic force of the return spring, thereby locking the angle of the fixed seat.

6. The PICC cannulation body position fixation support of claim 1, wherein: The top surface of the fixed base is provided with a sliding groove arranged along the length direction of the fixed base, and the angle adjustment component is slidably connected to the sliding groove; the angle adjustment component includes a bottom base block slidably connected to the sliding groove, a plurality of intermediate base blocks interconnected by magnetic blocks, and a top base block magnetically connected to the intermediate base blocks. The bottom base block is provided with a side wing on each side, and each side wing is provided with a through hole. The sliding groove is provided with a plurality of positioning holes arranged at intervals along the length direction of the sliding groove on both sides, and the through holes and positioning holes can be screwed and fixed by positioning bolts.

7. The PICC catheter body position fixation support of claim 6, characterized in that: The two angle locking mechanisms are respectively disposed on both sides of the fixed plate. The angle locking mechanism includes a side plate vertically connected to the top surface of the fixed base, an arc-shaped sliding channel disposed on the side plate, a locking screw vertically fixed to the outer wall of the fixed plate and extending outward and passing through the corresponding sliding channel, and a locking nut screwed to the locking screw. Loosening the locking nut allows the locking screw to slide back and forth in the sliding channel. When the fixed plate rotates around the hinge axis, the locking screw moves synchronously along the arc-shaped trajectory of the sliding channel to adjust the tilt angle.

8. The PICC cannulation body position fixation support of claim 1, wherein: The lower end of the grip is connected to a first telescopic rod that can extend and retract along the height direction of the fixed base via a universal connector. The lower end of the first telescopic rod is connected to a second telescopic rod that can extend and retract horizontally. The first telescopic rod is located inside the fixed base and one end is located outside the fixed base and connected to the second telescopic rod. The grip is ring-shaped, and several spaced silicone sleeves are fixed to the inner side wall of the grip.

9. The PICC cannulation body position securement armature according to any of claims 1-8, wherein: The outer wall of the base is equipped with a display screen and several buttons that are electrically connected to the controller; the bottom surface of the base is equipped with several omnidirectional rollers with brake pads.

10. The PICC cannulation body position fixation support of claim 9, characterized in that: The lifting mechanism is an electric push rod.

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