PICC (peripherally inserted central catheter) anti-slip fixing kit

Abstract

The invention discloses a PICC (Peripherally Inserted Central Catheter) anti-slip fixing kit. The PICC anti-slip fixing kit comprises a fixing base, an arm fixing part and a clothes limiting part, a connecting part is arranged at the bottom of the fixed base, and the arm fixing part and the clothes limiting part are fixedly arranged at the top of the fixed base; the clothes limiting part is of an annular structure close to the arm fixing part; the arm fixing part comprises two arc-shaped limiting plates, one ends of the arc-shaped limiting plates are rotatably connected with the fixing base, and the other ends of the two arc-shaped limiting plates are detachably connected through a fastening adjusting assembly. The arm fixing device can provide better fixing effect and fixing comfort for the arm of a patient, the tightness is convenient to adjust, and operation is convenient; according to the PICC catheterization operation device, the situation that clothes of a patient have adverse effects on a PICC catheterization operation can be effectively prevented, medical staff do not need to be distracted to fix arms of the patient or pay attention to whether sleeves of the patient slip or not, the medical staff can concentrate on disinfection and catheterization operation, and therefore the quality and efficiency of the PICC catheterization operation are effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of medical devices, in particular to a PICC catheter anti-slipping fixing kit. Background Art

[0002] PICC catheterization is a medical technology that inserts a catheter through a peripheral vein and positions its tip in the large blood vessel of the central vein. It is widely used in patients who require long-term intravenous infusion, chemotherapy, nutritional support and other treatments. PICC catheterization has the advantages of less trauma, low infection rate and a wide range of indications, and has gradually become a commonly used intravenous treatment method in clinical practice.

[0003] Although PICC catheterization surgery has many advantages, its operation process is complicated and has high requirements on the technical level and operation conditions of medical staff. During the operation, the patient needs to maintain a specific posture, especially the arm needs to be opened at a certain angle to facilitate the operation of medical staff. However, in actual operation, some patients, especially those who do not have full civil capacity such as children, patients with Alzheimer's disease, and critically ill patients, find it difficult to keep their arms fixed. In this case, another medical staff is usually required to assist in fixing the patient's arm, which not only increases the waste of human resources, but also may affect the efficiency and safety of the operation. In addition, during the disinfection process, the patient's sleeves need to be rolled up and fixed to prevent the sleeves from sliding down and contaminating the disinfected area on the arm. Therefore, in the actual operation of PICC catheterization, not only the patient's arm needs to be fixed, but also the patient's sleeves need to be fixed to prevent it from sliding down. The operation is cumbersome and can easily distract patients and medical staff, thereby affecting the quality and efficiency of PICC catheterization surgery. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a PICC catheter anti-slipping fixing kit which can fix the patient's arm while ensuring that the patient's sleeve will not slip off.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: a PICC tube anti-slip fixation kit, including a fixed base, an arm fixing part and a clothing restriction part; a connecting part is provided at the bottom of the fixed base, and the arm fixing part and the clothing restriction part are both fixedly set on the top of the fixed base; the clothing restriction part is an annular structure arranged close to the arm fixing part; the arm fixing part includes two arc-shaped limiting plates, one end of the arc-shaped limiting plates is rotatably connected to the fixed base, and the other ends of the two arc-shaped limiting plates are detachably connected by a fastening adjustment component.

[0006] As an improvement of the above scheme: the fastening and adjustment component includes an adjustment box, the interior of the adjustment box is divided into two spaces, an upper and a lower space, by a partition; the two arc-shaped limit plates are a first arc-shaped limit plate and a second arc-shaped limit plate, the end of the first arc-shaped limit plate not connected to the fixed base is inserted into the lower space of the adjustment box and fixedly connected to the adjustment box, the upper space of the adjustment box is connected and forms a plug-in fit with an adjustable plug-in length with the end of the second arc-shaped limit plate not connected to the fixed base.

[0007] As an improvement of the above scheme: the surface of the second arc-shaped limit plate is provided with a plurality of limit protrusions evenly spaced along the length direction of the second arc-shaped limit plate; the adjusting box is provided with a retractable pressing adjustment rod; one end of the pressing adjustment rod extends out of the adjusting box, and a button is fixed at the end of the pressing adjustment rod located outside the adjusting box; the other end of the pressing adjustment rod extends into the interior of the adjusting box, and the part of the pressing adjustment rod located inside the adjusting box is a rack segment, and a limit stop rod is also rotatably arranged in the adjusting box, and a gear part meshing with the rack segment of the pressing adjustment rod is fixed on the limit stop rod, and the limit stop rod contacts the limit protrusion on the second arc-shaped limit plate to form a limit fit, and the length of the limit stop rod is less than the spacing between two adjacent limit protrusions.

[0008] As an improvement of the above scheme: a retaining ring is fixedly provided at the position of the push-adjusting rod between the rack segment and the button, and a through hole compatible with the push-adjusting rod is provided on the side wall of the adjusting box, and the retaining ring is located inside the adjusting box and forms a limiting fit with the through hole; a telescopic spring is provided between the side wall of the adjusting box and the button of the push-adjusting rod, and the telescopic spring is sleeved on the push-adjusting rod and fixedly connected to the button and the side wall of the adjusting box.

[0009] As an improvement on the above scheme: the top of the limit lever forms a rotatable fit with the top of the adjusting box through a bearing, and the gear part is fixed under the bearing; a limit slide groove is also fixed inside the adjusting box to form a limit fit with the rack segment of the pressing adjusting lever, and the limit slide groove extends perpendicular to the telescopic direction of the second arc-shaped limit plate, and the rack of the rack segment is fixed on one side of the rack segment facing the gear part, and the other side of the rack segment is a plane embedded in the limit slide groove and slidably fits with the limit slide groove.

[0010] As an improvement of the above solution: the limiting protrusion is a cylindrical protrusion, and the limiting lever is provided with a semicircular bayonet matched with the limiting protrusion, and the opening direction of the semicircular bayonet is toward the first arc-shaped limiting plate.

[0011] As an improvement of the above solution, the inner side surfaces of the first arc-shaped limiting plate and the second arc-shaped limiting plate are both covered with a flexible layer; and the top surface of the fixed base is a concave arc surface.

[0012] As an improvement of the above solution: a limiting rib is provided on a side of the clothing limiting portion away from the arm fixing portion, and the limiting rib is an annular rib arranged around the outer ring of the clothing limiting portion.

[0013] As an improvement of the above solution: the outer ring edge of the limiting rib is bent in a direction away from the arm fixing portion, and the bent portion of the limiting rib and other portions of the limiting rib have an arc-shaped transition.

[0014] As an improvement of the above scheme: the connection part at the bottom of the fixed base is a magnetic connection part or a snap connection part; the snap connection part includes at least two symmetrically arranged snap fixing plates, one end of the snap fixing plate is fixedly connected to the fixed base, and the other end of the snap fixing plate is a bent end, and a locking screw is threadedly connected to the bent end.

[0015] The beneficial effects of the present invention are as follows: the present invention fixes the patient's arm when the patient undergoes PICC catheterization disinfection by arranging an arm fixing part on the fixing base, and at the same time, limits and fixes the sleeve on the patient's arm by arranging a clothing limiting part on the fixing base, so as to prevent the sleeve from sliding down and affecting the disinfected part of the arm; the tightness of the arm fixing part in the present invention can be adjusted accordingly according to the size of the patient's arm, thereby providing a better fixing effect and fixing comfort for the patient's arm, and the tightness adjustment is convenient and easy to operate; the present invention can effectively prevent the patient's clothing from having an adverse effect on the PICC catheterization operation, and medical staff do not have to be distracted to fix the patient's arm or pay attention to whether the patient's sleeve slips down, so that the medical staff can focus on disinfection and catheterization operations, thereby effectively improving the quality and efficiency of the PICC catheterization operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural axonometric diagram of the present invention;

[0017] Figure 2 It is a structural side view of the present invention;

[0018] Figure 3 It is a schematic diagram of the internal structure of the fastening and adjusting assembly in the present invention;

[0019] Figure 4 It is a schematic diagram of the internal structure of the fastening and adjusting component in the present invention.

[0020] Marked in the figure: 100-fixed base, 110-connecting part, 121-snap fixing plate, 122-locking screw, 200-arm fixing part, 210-first arc-shaped limiting plate, 220-second arc-shaped limiting plate, 221-limiting protrusion, 300-clothing limiting part, 310-limiting retaining edge, 400-fastening adjustment component, 410-adjusting box, 420-partition, 430-pressing adjustment rod, 431-button, 432-rack segment, 440-limiting retaining rod, 450-gear part, 460-retaining ring, 470-telescopic spring, 480-limiting slide groove. DETAILED DESCRIPTION

[0021] In order to facilitate the understanding of the present invention, the present invention is further described below in conjunction with the accompanying drawings.

[0022] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as “front”, “rear”, “left”, “right”, “up”, “down”, and “inside” are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of description. They do not indicate or imply that the device or component referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0023] like Figure 1 and Figure 2 As shown, the PICC tube anti-slip fixing kit disclosed in the present invention includes a fixing base 100, an arm fixing part 200, a clothing restriction part 300 and a fastening and adjusting component 400; the fixing base 100 is used as the basic component of the entire PICC tube anti-slip fixing kit, and is used to install and fix the arm fixing part 200 and the clothing restriction part 300, and provide a stable installation foundation for the arm fixing part 200 and the clothing restriction part 300; the arm fixing part 200 is used to fix the corresponding arm of the patient undergoing the PICC tube insertion operation, to ensure that the patient's arm will not shake during the PICC tube insertion operation, so as to facilitate the medical staff to perform the injection; the clothing restriction part 300 is used to block the sleeve of the patient's arm after it is rolled up, so as to prevent the sleeve from slipping and prevent it from affecting the disinfected part of the arm.

[0025] Specifically, Figure 1 and Figure 2As shown, a connecting portion 110 is provided at the bottom of the fixed base 100, and the connecting portion 110 is used to connect and fix the fixed base 100 to a stable position such as a table, a cabinet, or a workbench. There are many specific implementation schemes of the connecting portion 110, such as a magnetic connecting portion or a snap connecting portion. The magnetic connecting portion can be fixed to a metal part by magnetic attraction. The snap connecting portion can adopt at least two symmetrically arranged snap fixing plates 121, one end of the snap fixing plate 121 is fixedly connected to the fixed base 100, and the other end of the snap fixing plate 121 is a bent end, and a locking screw 122 is threadedly connected to the bent end, and the snap fixing plate 121 can be locked and fixed to a fixed part with an edge through the locking screw 122.

[0026] like Figures 1 to 4 As shown, the arm fixing part 200 adopted in the present invention includes two arc-shaped limit plates, one end of the arc-shaped limit plates is rotatably connected to the fixed base 100, and the other ends of the two arc-shaped limit plates are detachably connected through the fastening and adjusting assembly 400; the clamping degree between the two arc-shaped limit plates can be adjusted by the fastening and adjusting assembly 400, thereby achieving the purpose of adjusting the tightness of the entire arm fixing part 200. Specifically, the two arc-shaped limit plates are the first arc-shaped limit plate 210 and the second arc-shaped limit plate 220. The main structure of the fastening and adjusting assembly 400 is an adjusting box 410. The interior of the adjusting box 410 is divided into upper and lower side spaces by a partition 420. One end of the first arc-shaped limit plate 210 and the second arc-shaped limit plate 220 are rotatably connected to the fixed base 100 through a rotating shaft. The other end of the first arc-shaped limit plate 210 extends into the lower space inside the adjusting box 410 and is fixed in the lower space. The other end of the second arc-shaped limit plate 220 extends into the upper space inside the adjusting box 410. The upper space of the adjusting box 410 is a space that is connected on both sides so that the end of the second arc-shaped limit plate 220 can move in translation in the upper space. The clamping degree between the first arc-shaped limit plate 210 and the second arc-shaped limit plate 220 can be changed by moving the second arc-shaped limit plate 220 in the adjusting box 410.

[0027] Specifically, Figure 3 and Figure 4As shown, the fastening adjustment assembly 400 in the present invention fixes the second arc-shaped limiting plate 220 and adjusts the telescopic length of the second arc-shaped limiting plate 220 by pressing the cooperation of the adjustment rod 430 and the limiting blocking rod 440 . A plurality of limiting protrusions 221 are provided on the surface of the second arc-shaped limiting plate 220 and are evenly spaced along the length direction of the second arc-shaped limiting plate 220. A retractable pressing and adjusting rod 430 is provided on the adjusting box 410. One end of the pressing and adjusting rod 430 extends out of the adjusting box 410, and a button 431 is fixed to the end of the pressing and adjusting rod 430 located outside the adjusting box 410; the other end of the pressing and adjusting rod 430 extends into the interior of the adjusting box 410, and the part of the pressing and adjusting rod 430 located inside the adjusting box 410 is a rack segment 432. A limiting stopper 440 can also be rotatably provided in the adjusting box 410, and a gear portion 450 meshing with the rack segment 432 of the pressing and adjusting rod 430 is fixed on the limiting stopper 440. The limiting stopper 440 contacts the limiting protrusion 221 on the second arc-shaped limiting plate 220 to form a limiting fit. When the patient passes his arm through the arm fixing part 200, the medical staff can hold the second arc-shaped limit plate 220 and extend the end of the second arc-shaped limit plate 220 into the upper space of the adjustment box 410. The limit protrusion 221 on the surface of the second arc-shaped limit plate 220 can touch and press the limit lever 440 to rotate it so that the limit protrusion 221 makes way for the second arc-shaped limit plate 220 to continue to extend. When the patient feels that the arm fixing part 200 has a suitable clamping force on his arm, the medical staff releases the second arc-shaped limit plate 220 and extends it to a suitable position. The limit protrusion 221 at the corresponding position on the second arc-shaped limit plate 220 is blocked by the limit lever 440, so that the second arc-shaped limit plate 220 cannot retreat, thereby achieving the fixation of the second arc-shaped limit plate 220 and further achieving the fixation of the patient's arm. The number of upper limit protrusions 221 on the second arc-shaped limit plate 220 determines the actual adjustable tightness. In order to ensure that the rotation of the limit baffle 440 will not be affected by the limit protrusions 221 during the movement of the second arc-shaped limit plate 220, the length of the limit baffle 440 can be designed to be smaller than the distance between two adjacent limit protrusions 221. After the PICC catheterization operation is completed, the patient's arm needs to be removed from the arm fixing part 200. At this time, the medical staff can press the button 431 of the push-adjusting rod 430 located on one end of the adjusting box 410 to move the push-adjusting rod 430 inward. During the movement of the push-adjusting rod 430, the rack segment 432 can drive the gear portion 450 meshing therewith to rotate, thereby driving the limiting lever 440 to rotate to make way for the limiting protrusion 221. The limiting protrusion 221 is separated from the obstruction of the limiting lever 440, and the medical staff can remove the second arc-shaped limiting plate 220 from the adjusting box 410. The arm fixing part 200 is opened, and the patient can easily remove his arm at this time.

[0028] Furthermore, in order to enable the limiting lever 440 to provide a stable limiting effect for the limiting protrusion 221, as shown in FIG. Figure 3 As shown, the present invention has a retaining ring 460 fixedly arranged at the position where the pressing adjustment rod 430 is located between the rack segment 432 and the button 431, and a through hole for the pressing adjustment rod 430 to pass through is arranged on the side wall of the adjustment box 410, and the retaining ring 460 is located inside the adjustment box 410 and forms a limiting fit with the through hole; a telescopic spring 470 is provided between the side wall of the adjustment box 410 and the button 431 of the pressing adjustment rod 430, and the telescopic spring 470 is sleeved on the pressing adjustment rod 430 and fixedly connected to the button 431 and the side wall of the adjustment box 410. The retaining ring 460 can be provided to limit the telescopic distance of the pressing and adjusting rod 430, so as to prevent the pressing and adjusting rod 430 from being separated from the adjusting box 410. At the same time, the pressing and adjusting rod 430 is supported when the limiting block 440 limits the limiting protrusion 221, so as to prevent the limiting block 440 from rotating due to the force of the limiting protrusion 221 during the process of fixing the patient's arm, causing the limiting protrusion 221 to be separated from the limiting block 440. In addition, the telescopic spring 470 can provide a restoring force for the pressing and adjusting rod 430. When the button 431 is pressed to extend the pressing and adjusting rod 430 into the adjusting box 410, the telescopic spring 470 will be compressed. After the button 431 is released, the telescopic spring 470 can drive the pressing and adjusting rod 430 to reset by its own elastic force of restoring deformation. The present invention also arranges the pressing adjustment rod 430 on the side wall of the adjustment box 410 to facilitate operation by medical staff. Pressing the button 431 from the side will not squeeze the patient's arm, which can bring a better user experience to the patient and also facilitate the medical staff to apply force to operate.

[0029] like Figure 3 and Figure 4 As shown, the top of the limit stopper rod 440 in the present invention forms a rotatable fit with the top of the adjustment box 410 through a bearing, and the gear part 450 is fixed below the bearing; the adjustment box 410 is also fixed with a limit slide 480 that forms a limit fit with the rack segment 432 of the pressing adjustment rod 430, and the limit slide 480 is extended perpendicular to the telescopic direction of the second arc-shaped limit plate 220, and the rack of the rack segment 432 is fixed on the side of the rack segment 432 facing the gear part 450, and the other side of the rack segment 432 is a plane that is embedded in the limit slide 480 and slidably fits with the limit slide 480. The present invention installs the limit stopper rod 440 by setting a bearing, the outer ring of the bearing is fixed on the top of the adjustment box 410, and the inner ring of the bearing is fixedly connected to the top of the limit stopper rod 440, thereby realizing the fixation of the limit stopper rod 440 in the adjustment box 410 and realizing the rotation of the limit stopper rod 440. The present invention can guide and limit the movement of the pressing and adjusting rod 430 by providing the limiting sliding groove 480 , thereby ensuring the stability of the movement of the pressing and adjusting rod 430 .

[0030] Further, such as Figure 3 As shown, the present invention sets the limiting protrusion 221 as a cylindrical protrusion, and sets a semicircular bayonet matching the limiting protrusion 221 on the limiting blocking rod 440, and the opening direction of the semicircular bayonet faces the first arc-shaped limiting plate 210. The cylindrical protrusion forms a better matching relationship with the semicircular bayonet on the limiting blocking rod 440, and the cylindrical protrusion can be embedded in the semicircular bayonet to form a multi-range limiting fit, so as to improve the limiting effect of the limiting blocking rod 440 on the limiting protrusion 221; at the same time, the back arc surface of the semicircular bayonet can make the back of the semicircular bayonet and the cylindrical protrusion slide and rub when the second arc-shaped limiting plate 220 is extended and contacts the cylindrical protrusion, so as to prompt the limiting blocking rod 440 to rotate in the opposite direction to make way for the limiting protrusion 221.

[0031] like Figure 1 and Figure 2 As shown, in the present invention, the clothing restriction part 300 is arranged close to the arm fixing part 200. When performing a PICC catheterization operation, the patient's arm first passes through the clothing restriction part 300 and then passes through the arm fixing part 200. The present invention sets a limiting rib 310 on the side of the clothing restriction part 300 away from the arm fixing part 200. The limiting rib 310 is an annular rib arranged around the outer ring of the clothing restriction part 300. By setting the limiting baffle 310, the blocking effect on the sleeve on the patient's arm can be improved, and the patient's sleeve can be directly pushed upward by the limiting baffle 310 without manually operating the sleeve. The present invention further bends the outer ring edge of the limiting rib 310 in the direction away from the arm fixing part 200, and the bending part of the limiting rib 310 and the other parts of the limiting rib 310 have an arc transition. The above structural improvement can improve the limiting effect of the limiting baffle 310 on clothes.

[0032] Furthermore, the present invention covers the inner side surfaces of the first arc-shaped limiting plate 210 and the second arc-shaped limiting plate 220 with a flexible layer, and the flexible layer can be made of cloth, sponge and other materials to improve the comfort of the patient's arm when being fixed. In addition, the present invention sets the top surface of the fixing base 100 as a concave arc surface, so that it is more suitable for the patient's arm, which can also improve the comfort of the patient's arm when being fixed.

Claims

1. PICC catheter anti-slip fixation kit, characterized by: The invention comprises a fixed base (100), an arm fixing part (200) and a clothing limiting part (300); a connecting part (110) is provided at the bottom of the fixed base (100); the arm fixing part (200) and the clothing limiting part (300) are both fixedly set on the top of the fixed base (100); the clothing limiting part (300) is an annular structure arranged close to the arm fixing part (200); the arm fixing part (200) comprises two arc-shaped limiting plates, one end of the arc-shaped limiting plates is rotatably connected to the fixed base (100), and the other ends of the two arc-shaped limiting plates are detachably connected via a fastening adjustment component (400).

2. The PICC catheter anti-slipping fixing kit according to claim 1, characterized in that: The tightening and adjusting assembly (400) comprises an adjusting box (410), the interior of the adjusting box (410) being divided into an upper and lower space by a partition (420); two arc-shaped limit plates being a first arc-shaped limit plate (210) and a second arc-shaped limit plate (220); the end of the first arc-shaped limit plate (210) not connected to the fixed base (100) being inserted into the lower space of the adjusting box (410) and being fixedly connected to the adjusting box (410); the upper space of the adjusting box (410) being connected and forming a plug-in fit with an end of the second arc-shaped limit plate (220) not connected to the fixed base (100) so as to have an adjustable plug-in length.

3. The PICC catheter anti-slipping fixing kit according to claim 2, characterized in that: The surface of the second arc-shaped limit plate (220) is provided with a plurality of limit protrusions (221) which are evenly spaced and arranged along the length direction of the second arc-shaped limit plate (220); a retractable push-adjustment rod (430) is provided on the adjustment box (410); one end of the push-adjustment rod (430) extends out of the adjustment box (410), and a button (431) is fixed to the end of the push-adjustment rod (430) located outside the adjustment box (410); the other end of the push-adjustment rod (430) extends into the interior of the adjustment box (410), and the push-adjustment rod (430) is pressed to adjust the position of the adjustment box (410). The portion of the rod (430) located inside the regulating box (410) is a rack section (432), and a limit stop rod (440) can also be rotatably arranged inside the regulating box (410). A gear portion (450) is fixed on the limit stop rod (440) and is meshed with the rack section (432) of the pressing regulating rod (430). The limit stop rod (440) contacts with a limit protrusion (221) on the second arc-shaped limit plate (220) to form a limit fit, and the length of the limit stop rod (440) is less than the spacing between two adjacent limit protrusions (221).

4. The PICC catheter anti-slipping fixing kit according to claim 3, characterized in that: A retaining ring (460) is fixedly arranged at a position of the push-adjusting rod (430) between the rack section (432) and the button (431); a through hole matching the push-adjusting rod (430) is arranged on the side wall of the adjusting box (410); the retaining ring (460) is located inside the adjusting box (410) and forms a limiting fit with the through hole; a telescopic spring (470) is arranged between the side wall of the adjusting box (410) and the button (431) of the push-adjusting rod (430); the telescopic spring (470) is sleeved on the push-adjusting rod (430) and fixedly connected to the button (431) and the side wall of the adjusting box (410).

5. The PICC catheter anti-slipping fixing kit according to claim 3, characterized in that: The top of the limit stop rod (440) forms a rotatable fit with the top of the adjustment box (410) through a bearing, and the gear part (450) is fixed under the bearing; the interior of the adjustment box (410) is also fixed with a limit slide groove (480) that forms a limit fit with the rack section (432) of the pressing adjustment rod (430), and the limit slide groove (480) extends perpendicular to the telescopic direction of the second arc-shaped limit plate (220), and the rack of the rack section (432) is fixed on one side of the rack section (432) facing the gear part (450), and the other side of the rack section (432) is a plane embedded in the limit slide groove (480) and slidably matched with the limit slide groove (480).

6. The PICC catheter anti-slipping fixing kit according to claim 3, characterized in that: The limiting protrusion (221) is a cylindrical protrusion, and the limiting blocking rod (440) is provided with a semicircular bayonet adapted to the limiting protrusion (221), the opening direction of the semicircular bayonet facing the first arc-shaped limiting plate (210).

7. The PICC catheter anti-slipping fixing kit according to claim 3, characterized in that: The inner side surfaces of the first arc-shaped limiting plate (210) and the second arc-shaped limiting plate (220) are both covered with a flexible layer; and the top surface of the fixed base (100) is a concave arc surface.

8. The PICC catheter anti-slipping fixing kit according to claim 1, characterized in that: A limiting rib (310) is provided on one side of the clothing limiting portion (300) away from the arm fixing portion (200), and the limiting rib (310) is an annular rib arranged around the outer ring of the clothing limiting portion (300).

9. The PICC catheter anti-slipping fixing kit according to claim 8, characterized in that: The outer ring edge of the limiting rib (310) is bent in a direction away from the arm fixing portion (200), and an arc-shaped transition is formed between the bent portion of the limiting rib (310) and other portions of the limiting rib (310).

10. The PICC catheter anti-slipping fixing kit according to claim 1, characterized in that: The connection part (110) at the bottom of the fixed base (100) is a magnetic connection part or a snap connection part; the snap connection part comprises at least two symmetrically arranged snap fixing plates (121), one end of the snap fixing plate (121) is fixedly connected to the fixed base (100), and the other end of the snap fixing plate (121) is a bent end, on which a locking screw (122) is threadedly connected.

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