A PICC placement auxiliary device

Abstract

This invention discloses a PICC placement auxiliary device, relating to the field of PICC placement technology, to facilitate injection by medical personnel. The device includes a placement frame, a rotating plate, a handle, a heating plate, a rotating rod, and a limiting mechanism. The placement frame is connected to symmetrically arranged rotating plates via the rotating rod. The handle is slidably connected to the rotating plates, and the heating plate is connected to the handle. The placement frame is equipped with the limiting mechanism, which is used to limit the patient's forearm. This invention allows the user to hold the handle and place the heating plate against the patient's forearm. The heating plate heats the injection site in the forearm, raising the temperature of the blood vessels and causing vasodilation, thus facilitating injection by medical personnel.

Description

Technical Field

[0001] This invention relates to the field of PICC placement technology, and more particularly to a PICC placement auxiliary device. Background Technology

[0002] PICC placement is a central venous catheter inserted through a peripheral vein. During PICC placement, a thin catheter is first inserted into the patient's arm vein and then advanced to a large vein near the heart. When inserting the catheter into the patient's arm vein, the patient may experience pain and move their hand erratically. In such cases, a catheter placement assist device is needed to stabilize the patient's arm.

[0003] Patent publication number CN214858579U discloses a PICC insertion auxiliary device, including a base, a mounting seat fixedly connected to the top center of the base, a bracket fixedly installed on the top side of the mounting seat, a first elastic soft pad fixedly connected to the inner surface of the bracket, a fixing frame provided on the top side of the bracket, a second elastic soft pad fixedly connected to the inner surface of the fixing frame, a plurality of locking members connecting the bracket and the fixing frame, and a fixing member fixedly installed on one side of the bottom of the base.

[0004] When using the aforementioned patent to fix a patient's arm, the locking mechanism can be opened first to open the fixation frame. Then, the patient's arm is placed on the support, and the fixation frame is closed and locked in place by the locking mechanism. In this way, the fixation frame and support frame can fix the patient's arm for PICC placement. Before performing PICC placement, medical staff usually rub the injection site back and forth a few times to make it easier to insert the needle. This is to raise the blood vessel temperature and dilate the blood vessels, making it easier for the medical staff to insert the needle. However, existing PICC placement auxiliary devices cannot heat the injection site to assist medical staff in injection, so medical staff still need to manually rub and heat it. Therefore, a PICC placement auxiliary device that can assist medical staff in heating the injection site to facilitate injection is being developed. Summary of the Invention

[0005] This invention provides a PICC insertion auxiliary device that can assist medical staff in heating the injection site of a patient to facilitate injection, thereby overcoming the shortcomings of existing PICC insertion auxiliary devices that cannot heat the injection site of the patient.

[0006] The technical solution of the present invention is as follows: a PICC placement auxiliary device, comprising a placement frame, a rotating plate, a handle, a heating plate, a rotating rod, and a limiting mechanism. The placement frame is connected to the symmetrically arranged rotating plate via the rotating rod. The rotating plate is slidably connected to the handle. The handle is connected to the heating plate. The placement frame is provided with the limiting mechanism, which is used to limit the patient's forearm.

[0007] As a preferred embodiment of the present invention, the limiting mechanism includes a connecting block, a telescopic elastic block, a sliding rod, and a clamping block. The rotating plate is connected to a plurality of the connecting blocks. The connecting blocks are rotatably connected to the telescopic elastic blocks. The telescopic elastic blocks are rotatably connected to the placement frame. The sliding rod is slidably connected to the side of the placement frame closest to the connecting blocks. The sliding rod is rotatably connected to the adjacent telescopic elastic blocks. The clamping block is connected between the sides of the adjacent sliding rods furthest from the telescopic elastic blocks.

[0008] As a preferred embodiment of the present invention, it further includes a lifting mechanism for lifting the patient's forearm. The lifting mechanism is disposed on the placement frame and includes a top block, a top frame, a movable frame, and an inclined block. The placement frame is slidably connected to the top frame, the top block is connected to the top of the top frame, the movable frame is connected to the end of the slide rod near the top frame, the movable frame and the placement frame are slidably connected, and the inclined block is connected to the side of the movable frame away from the slide rod. The inclined block and the top frame are in a pressing fit.

[0009] As a preferred embodiment of the present invention, it further includes an expansion mechanism for fixing the patient's elbow joint. The expansion mechanism is disposed on the side of the placement frame near the movable frame. The expansion mechanism includes a mounting frame, an expansion block, an elastic component, and an injection component. The mounting frame is disposed on the side of the placement frame near the movable frame. The mounting frame is connected to multiple sets of elastic components at equal intervals. The expansion block is connected between each set of elastic components. The injection component is disposed on the side of the placement frame near the mounting frame for injecting gas into the expansion block.

[0010] As a preferred embodiment of the present invention, the air injection assembly includes an air guide pipe, an air cylinder, a wedge block, a compression spring, and a vent valve. The air cylinder is located on the side of the placement frame near the movable frame. The air cylinder has an automatic one-way valve. The air cylinder is connected to the air guide pipe on the side facing the mounting frame. The air guide pipe is disposed on the mounting frame and is connected to the expansion block. The compression spring is connected between the piston rod of the air cylinder and the air cylinder. The wedge block is connected to the movable frame on the side near the air cylinder. The piston rod of the air cylinder and the wedge block are in a pressing fit. The vent valve is connected to the side of the placement frame near the air cylinder and is connected to the air guide pipe.

[0011] As a preferred embodiment of the present invention, it further includes a magnification mechanism for magnifying the patient's blood vessels for injection. The magnification mechanism is disposed on the side of the placement frame near the movable frame. The magnification mechanism includes a magnifying lens, a support frame, a first guide rod, a first spring, and a pull rope. The first guide rod is symmetrically arranged on the side of the placement frame near the movable frame. The first guide rod is slidably connected to the support frame. The magnifying lens is rotatably connected to the side of the support frame away from the first guide rod. The first spring is connected between the support frame and the first guide rod. The pull rope is connected between the movable frame and the adjacent support frame.

[0012] As a preferred embodiment of the present invention, it further includes a belt and a handle. The handle is rotatably connected to the support frame near the first spring. The belt is wound between the magnifying lens and the handle through a transmission wheel.

[0013] As a preferred embodiment of the present invention, it further includes a tape box, a needle plate, a second guide rod, a second spring, and a pressure plate. The tape box is connected to the side of the placement frame away from the support frame. The second guide rods are symmetrically arranged on the top of the tape box. The pressure plate is slidably connected between the second guide rods. The second springs are symmetrically arranged between the pressure plate and the tape box. The needle plate is connected to the pressure plate.

[0014] As a preferred embodiment of the present invention, it further includes symmetrically arranged fixing frames, which are connected to the side of the placement frame near the tape box.

[0015] As a preferred embodiment of the present invention, a rubber arc-shaped block is provided on the top of the top block.

[0016] Beneficial effects:

[0017] 1. This invention allows people to hold the handle and attach the heating plate to the patient's forearm. The heating plate heats the injection site on the patient's forearm, raising the temperature of the blood vessels and causing them to dilate, which is beneficial for medical staff to perform injections.

[0018] 2. When the rotating plate is opened, the invention can drive the slide bar and clamping block to move inward through the telescopic elastic block. The clamping block can automatically limit the front and back sides of the patient's forearm so that medical staff can give the injection to the patient.

[0019] 3. In this invention, while the sliding rod moves the clamping block inward to limit the forearm, the sliding rod also causes the inclined block to lift the top frame upward, thereby moving the top block upward to lift the patient's forearm. This can replace the operation of lifting the patient's forearm by medical staff, making it more convenient for medical staff to inject.

[0020] 4. When the moving frame moves inward to compress the wedge block, the piston rod moves to the right, allowing gas to fill the expansion block. This causes the expansion block to expand and fix the patient's elbow joint, thereby fixing the patient's forearm so that medical staff can administer injections.

[0021] 5. When the mobile frame moves inward, the present invention will move the support frame and the magnifying lens to the left and closer to the medical staff by pulling the rope. In this way, the medical staff can clearly observe the blood vessels on the patient's forearm through the magnifying lens for injection. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0023] Figure 2 This is a partial three-dimensional structural schematic diagram of the present invention.

[0024] Figure 3 This is a three-dimensional structural diagram of the components of the present invention, such as the fixing frame, rotating plate, and placement frame.

[0025] Figure 4 This is a three-dimensional structural diagram of the rotating plate, heating plate, and rotating rod of the present invention.

[0026] Figure 5 This is a three-dimensional structural diagram of the limiting mechanism of the present invention.

[0027] Figure 6 This is a three-dimensional structural diagram of the lifting mechanism of the present invention.

[0028] Figure 7 This is a partial three-dimensional structural diagram of the lifting mechanism of the present invention.

[0029] Figure 8 This is a three-dimensional structural diagram of the expansion mechanism of the present invention.

[0030] Figure 9 This is a partial three-dimensional structural diagram of the expansion mechanism of the present invention.

[0031] Figure 10 This is a three-dimensional structural diagram of the magnification mechanism of the present invention.

[0032] Figure 11 This is a partial three-dimensional structural diagram of the amplification mechanism of the present invention.

[0033] Figure 12 This is a three-dimensional structural diagram of the present invention for storing tape rolls.

[0034] Figure 13 This is a partial three-dimensional structural diagram of the present invention for storing tape rolls.

[0035] The markings in the diagram are as follows: 1-Placement rack, 11-Fixed rack, 2-Rotating plate, 21-Handle, 22-Heating plate, 23-Rotating rod, 3-Connecting block, 31-Telescopic elastic block, 32-Slide rod, 33-Clamping block, 4-Top block, 41-Top frame, 42-Moving frame, 43-Inclined block, 5-Mounting frame, 51-Expansion block, 52-Elastic component, 53-Air guide tube, 54-Air cylinder, 55-Wedge block, 56-Compression spring, 57-Relief valve, 6-Magnifying lens, 61-Support frame, 62-Belt, 63-Handle, 64-First guide rod, 65-First spring, 66-Pull rope, 7-Tape box, 71-Needle plate, 72-Second guide rod, 73-Second spring, 74-Pressure plate. Detailed Implementation

[0036] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention.

[0037] Example 1:

[0038] A PICC placement auxiliary device, such as Figures 1-5As shown, the device includes a placement frame 1, a fixing frame 11, a rotating plate 2, a handle 21, a heating plate 22, a rotating rod 23, and a limiting mechanism. The placement frame 1 has fixing frames 11 on both the front and rear sides of its upper left portion for storing syringes. The rotating plate 2 is connected to both the front and rear sides of the placement frame 1 via the rotating rod 23. A handle 21 is slidably connected to the upper part of each rotating plate 2. A heating plate 22 for heating the patient's forearm is connected to the inner side of each handle 21. The placement frame 1 has a limiting mechanism for limiting the patient's forearm on both the front and rear sides; the limiting mechanism includes a connecting block 3, an extension... The rotating plate 2 has three connecting blocks 3 connected to the lower outer side of the elastic block 31, sliding rod 32, and clamping block 33. Each connecting block 3 is rotatably connected to the elastic block 31. The elastic block 31 is rotatably connected to the placement frame 1. The upper front and rear sides of the placement frame 1 are slidably connected to three sliding rods 32. Each sliding rod 32 is located below the connecting block 3. The outer side of the sliding rod 32 is rotatably connected to the lower part of the adjacent elastic block 31. Clamping blocks 33 for limiting the patient's forearm are connected between the rear ends of the front sliding rod 32 and between the front ends of the rear sliding rod 32.

[0039] When using the PICC placement assist device, the patient's arm can be inserted from right to left between the placement frame 1 and the rotating plate 2. The rotating plate 2 is then rotated inwards to close. The handle 21 is then moved inwards, causing the heating plate 22 to move inwards and align with the patient's forearm. The heating plate 22 is then turned on, heating the injection site in the patient's forearm. This raises the temperature of the blood vessels, causing them to dilate and facilitating injection. After heating is complete, the heating plate 22 is turned off, and the rotating plate 2 can then be rotated open. The rotating plate 2, through the connecting block 3, drives the telescopic elastic block 31. When the device contracts, the telescopic elastic block 31 rotates, causing the slide bar 32 to move inward and the clamping block 33 to move inward as well, limiting the front and back sides of the patient's forearm. Medical staff can then perform PICC placement on the left side of the device. After the PICC placement is completed, the rotating plate 2 can be rotated inward to close the device. The rotating plate 2 will reset the connecting block 3 and simultaneously cause the telescopic elastic block 31 to rotate and reset. The rotation and reset of the telescopic elastic block 31 will pull the slide bar 32 outward to reset, and the clamping block 33 will automatically move outward to reset and release the patient's forearm.

[0040] Example 2:

[0041] Based on Example 1, such as Figures 6-7As shown, it also includes a lifting mechanism for lifting the patient's forearm upwards. The lifting mechanism is set on the placement frame 1 and includes a top block 4, a top frame 41, a movable frame 42, and an inclined block 43. The top frame 41 is slidably connected to the right side of the placement frame 1. The top block 4 for lifting the patient's forearm is fixed to the top of the top frame 41. A rubber arc block is provided on the top of the top block 4. The patient's forearm rests on the rubber arc block, which makes the patient's forearm more comfortable. The outer ends of the two rightmost front and rear sliding rods 32 are connected to the movable frame 42. The lower part of the movable frame 42 is slidably connected to the placement frame 1. An inclined block 43 is connected to the inner side of the lower part of the movable frame 42. The inclined block 43 and the lower part of the top frame 41 are pressed together.

[0042] Before administering an injection to a patient's forearm, medical staff typically raise the forearm to facilitate observation of blood vessels. This allows for easier visualization of the veins and makes injection easier. Therefore, a lifting mechanism is incorporated. When the slide bar 32 moves inward, it not only moves the clamping block 33 inward to limit the movement of the patient's forearm on both sides, but also moves the moving frame 42 inward. The inward movement of the moving frame 42 causes the inclined block 43 to move inward. When the inclined surface of the inclined block 43 presses against the lifting frame 41, it will... The top frame 41 moves upward, which in turn moves the top block 4 upward. The upward movement of the top block 4 will slightly lift the patient's forearm, thus eliminating the need for medical staff to manually lift the patient's forearm and assisting them in the lifting action. After the injection is completed, the rotating plate 2 is rotated inward to close, causing the slide bar 32 to move outward to reset, which in turn moves the moving frame 42 and the inclined block 43 outward. After the inclined block 43 separates from the top frame 41, the top frame 41 and the top block 4 will move downward to reset under their own weight.

[0043] like Figures 8-9As shown, it also includes an expansion mechanism for fixing the patient's elbow joint. The expansion mechanism is located on the right side of the placement frame 1. The expansion mechanism includes a mounting frame 5, an expansion block 51, an elastic component 52, and an air injection component. The mounting frame 5 is located on the upper right side of the placement frame 1. Three sets of elastic components 52 are connected to the mounting frame 5 along the circumferential direction. Each set has two elastic components 52. An expansion block 51 for fixing the patient's elbow joint is connected between each set of elastic components 52. An air injection component for injecting gas into the expansion block 51 is located on the front right side of the placement frame 1. The air injection component includes an air guide tube 53, an air cylinder 54, a wedge block 55, a compression spring 56, and a deflation valve 57. The air cylinder 54 is connected to the front right side of the placement frame 1 through a fixing ring. 4. The air cylinder 54 is equipped with a one-way valve, which allows gas to enter the air cylinder 54 in one direction. The right side of the air cylinder 54 is connected to the air guide pipe 53, which is located on the left side of the mounting frame 5. The air guide pipe 53 is connected to the expansion block 51. The upper part of the front movable frame 42 is provided with a wedge block 55, which is pressed and engaged with the piston rod of the air cylinder 54. A compression spring 56 is connected between the left side of the piston rod of the air cylinder 54 and the air cylinder 54. The compression spring 56 is wound around the piston rod. When the front movable frame 42 moves backward, it drives the wedge block 55 to move backward. The wedge block 55 drives the piston rod to move to the right, injecting gas into the expansion block 51 through the air guide pipe 53. The right front part of the mounting frame 1 is connected to a vent valve 57, which is connected to the air guide pipe 53.

[0044] To further prevent uncontrolled forearm movement during injection, an expansion mechanism is installed to fix the patient's elbow joint, thus preventing further forearm movement. When the patient's forearm is inserted between the placement frame 1 and the rotating plate 2, the patient's elbow joint is positioned between the expansion blocks 51. When the moving frame 42 moves inward, it drives the wedge block 55 to move backward. The wedge block 55 drives the piston rod to move to the right, compressing the compression spring 56 and injecting gas into the expansion block 51 through the gas guide tube 53. Thus, the expansion block 51... The automatic expansion can fix the patient's elbow joint, and under the action of the elastic component 52, the expansion block 51 can also keep it close to the patient's elbow joint, thus preventing the patient's forearm from moving around. Then, the moving frame 42 moves outward to reset, which drives the wedge block 55 to move forward to reset. Under the action of the compression spring 56, the piston rod moves to the left to reset. When it is necessary to depress the expansion block 51, the depressurization valve 57 is opened to release the gas in the expansion block 51. Then the depressurization valve 57 is closed.

[0045] like Figures 10-11As shown, it also includes an amplification mechanism for magnifying the patient's blood vessels for injection. The amplification mechanism is located on the right side of the placement frame 1. The amplification mechanism includes a magnifying lens 6, a support frame 61, a first guide rod 64, a first spring 65, and a pull rope 66. The first guide rod 64 is fixed to both the front and rear sides of the right side of the placement frame 1. The support frame 61 is slidably connected to the first guide rod 64. The magnifying lens 6 for magnifying the patient's blood vessels is rotatably connected to the upper part of the support frame 61. The first spring 65 is connected between the left side of the support frame 61 and the left side of the first guide rod 64. The first spring 65 is wound around the first guide rod 64. The pull rope 66 is connected between the left side of the moving frame 42 and the left side of the adjacent support frame 61. The pull rope 66 passes around the left side of the first guide rod 64. When the moving frame 42 moves inward, the pull rope 66 will pull the support frame 61 to the left, thereby moving the magnifying lens 6 to the left and closer to the medical staff, so that the medical staff can observe the patient's blood vessels through the magnifying lens 6.

[0046] like Figure 11 As shown, it also includes a belt 62 and a handle 63. The lower part of the support frame 61 is rotatably connected to the handle 63. The front and rear sides of the magnifying lens 6 and the handle 63 are all wound with belts 62 through the transmission wheels.

[0047] When medical staff administer injections to a patient's forearm, they need to observe the blood vessels on the forearm. To facilitate this observation, a magnification mechanism is installed. This mechanism magnifies the blood vessels on the forearm, making them easier for medical staff to observe. The magnification mechanism works as follows: When the moving frame 42 moves inward, it pulls the pull rope 66, which in turn pulls the support frame 61 to the left. The first spring 65 is compressed, and the leftward movement of the support frame 61 causes the magnifying lens 6 to move to the left as well. This allows the magnifying lens 6 to be closer to the medical staff. The medical staff can then hold the handle 63 and rotate it, which, via the belt 62, rotates the magnifying lens 6 in both directions. This allows for easy adjustment of the magnifying lens 6's rotation angle, enabling the medical staff to clearly observe the blood vessels on the forearm and facilitating the injection. After the injection is completed, the moving frame 42 moves outward to reset, releasing the pull rope 66. The first spring 65 then causes the support frame 61 to move to the right to reset, and the magnifying lens 6 to move to the right to reset as well.

[0048] like Figures 12-13As shown, it also includes a tape box 7, a needle plate 71, a second guide rod 72, a second spring 73, and a pressure plate 74. The front left part of the storage rack 1 is connected to a tape box 7 for storing tape. The tape box 7 has a lid on the top, which can be opened. Two second guide rods 72 are connected to the top of the tape box 7. The pressure plate 74 is slidably connected between the second guide rods 72. The bottom left and right sides of the pressure plate 74 and the top of the tape box 7 are connected to the second springs 73. The bottom of the pressure plate 74 is connected to a needle plate 71 for cutting the tape.

[0049] When using this device, the lid of the tape box 7 can be opened, the tape roll placed into the tape box 7, the lid closed, and then one end of the tape pulled forward out of the tape box 7 so that the tape passes under the needle plate 71. After the medical staff injects the patient, the tape is needed to fix the injection needle and tube. The tape can be pulled out. If it is necessary to cut the tape, press the pressure plate 74. The second spring 73 is compressed, and the pressure plate 74 drives the needle plate 71 to move downward to cut the tape. Then release the pressure plate 74. Under the action of the second spring 73, the needle plate 71 and the pressure plate 74 move upward to reset. This makes it easy to remove the tape to fix the injection needle and tube.

[0050] Although this disclosure has been described with respect to only a limited number of embodiments, those skilled in the art who benefit from this disclosure will understand that various other embodiments can be devised without departing from the scope of the invention. Therefore, the scope of the invention should be limited only by the appended claims.

Claims

1. A PICC placement auxiliary device, comprising a placement rack (1), characterized in that: It also includes a rotating plate (2), a handle (21), a heating plate (22), a rotating rod (23), and a limiting mechanism. The placement frame (1) is connected to the symmetrically arranged rotating plate (2) through the rotating rod (23). The rotating plate (2) is slidably connected to the handle (21). The handle (21) is connected to the heating plate (22). The placement frame (1) is provided with the limiting mechanism, which is used to limit the patient's forearm. The limiting mechanism includes a connecting block (3), a telescopic elastic block (31), a slide rod (32), and a clamping block (33). The rotating plate (2) is connected to multiple connecting blocks (3). The connecting block (3) is rotatably connected to the telescopic elastic block (31). The telescopic elastic block (31) and the placement rack (1) are rotatably connected. The placement rack (1) is slidably connected to the slide rod (32) on the side close to the connecting block (3). The slide rod (32) and the telescopic elastic block (31) are rotatably connected. The clamping block (33) is connected between the side of the slide rod (32) away from the telescopic elastic block (31). It also includes a lifting mechanism for lifting the patient's forearm. The lifting mechanism is set on the placement frame (1). The lifting mechanism includes a top block (4), a top frame (41), a movable frame (42), and an inclined block (43). The placement frame (1) is slidably connected to the top frame (41). The top block (4) is connected to the top of the top frame (41). The movable frame (42) is connected to the end of the slide rod (32) near the top frame (41). The movable frame (42) and the placement frame (1) are slidably connected. The inclined block (43) is connected to the side of the movable frame (42) away from the slide rod (32). The inclined block (43) and the top frame (41) are pressed together. It also includes an expansion mechanism for fixing the patient's elbow joint. The expansion mechanism is located on the side of the placement frame (1) near the movable frame (42). The expansion mechanism includes a mounting frame (5), an expansion block (51), an elastic component (52), and an air injection component. The mounting frame (5) is located on the side of the placement frame (1) near the movable frame (42). The mounting frame (5) is connected to multiple sets of elastic components (52) at equal intervals. The expansion block (51) is connected between each set of elastic components (52). The air injection component is located on the side of the placement frame (1) near the mounting frame (5). The air injection component is used to inject gas into the expansion block (51). The air injection assembly includes an air guide pipe (53), an air cylinder (54), a wedge block (55), a compression spring (56), and a vent valve (57). The air cylinder (54) is located near the side of the movable frame (42) on the placement frame (1). The air cylinder (54) has an automatic one-way valve. The air cylinder (54) is connected to the air guide pipe (53) on the side facing the mounting frame (5). The air guide pipe (53) is located on the mounting frame (5). The air guide pipe (53) and the expansion valve are connected to the air cylinder (54). The expansion block (51) is connected, and the compression spring (56) is connected between the piston rod of the air cylinder (54) and the air cylinder (54). The wedge block (55) is connected on the movable frame (42) near the side of the air cylinder (54). The piston rod of the air cylinder (54) and the wedge block (55) are pressed together. The vent valve (57) is connected to the side of the placement frame (1) near the side of the air cylinder (54). The vent valve (57) is connected to the air guide pipe (53). It also includes a magnification mechanism for magnifying the patient's blood vessels for injection. The magnification mechanism is located on the side of the placement frame (1) near the movable frame (42). The magnification mechanism includes a magnifying lens (6), a support frame (61), a first guide rod (64), a first spring (65), and a pull rope (66). The placement frame (1) near the movable frame (42) is connected to the first guide rod (64) which is symmetrically arranged. The first guide rod (64) is slidably connected to the support frame (61). The support frame (61) away from the first guide rod (64) is rotatably connected to the magnifying lens (6). The first spring (65) is connected between the support frame (61) and the first guide rod (64). The pull rope (66) is connected between the movable frame (42) and the support frame (61). It also includes a belt (62) and a handle (63). The support frame (61) is rotatably connected to the handle (63) near the first spring (65). The belt (62) is wound between the magnifying lens (6) and the handle (63) through a drive wheel. It also includes a tape box (7), a needle plate (71), a second guide rod (72), a second spring (73), and a pressure plate (74). The tape box (7) is connected to the side of the placement frame (1) away from the support frame (61). The second guide rod (72) is symmetrically arranged on the top of the tape box (7). The pressure plate (74) is slidably connected between the second guide rods (72). The second spring (73) is symmetrically arranged between the pressure plate (74) and the tape box (7). The needle plate (71) is connected to the pressure plate (74).

2. The PICC placement auxiliary device as described in claim 1, characterized in that: It also includes symmetrically arranged fixing frames (11), which are connected to the side of the placement rack (1) near the tape box (7).

3. The PICC placement auxiliary device as described in claim 1, characterized in that: The top of the top block (4) is provided with a rubber arc-shaped block.

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