Fixator for tightening skin during PICC (Peripherally Inserted Central Catheter) catheterization

Abstract

The invention provides a fixing device for tightening skin during PICC (Peripherally Inserted Central Catheter) catheterization, and belongs to the technical field of PICC catheterization. Comprising two mounting frames, a base is fixedly mounted between the tops of the two mounting frames, and a positioning mechanism is mounted at the top of the base. During PICC catheterization, an adjusting plate is rotated, a connecting shaft drives a rotating disc to extrude and compress a torsional spring, a fourth screw is screwed to be inserted into a clamping hole to lock the rotating disc, PICC catheterization penetrates into a winding rotating shaft and a positioning sleeve, after catheterization is finished, the fourth screw is unscrewed, the torsional spring is reset to drive the rotating disc to rotate, a connecting plate is promoted to rotate up and down in the circumferential direction of the winding rotating shaft, and redundant PICC catheterization is wound. The torsion springs on the two sides act synchronously, winding is more efficient, the rotating shaft rotates during winding, stable winding is assisted, if the adjusting handle needs to be adjusted and screwed, the lead screw drives the movable plate to slide in the top rail through the movable block, and due to the thread characteristic of the lead screw, the distance between the two PICC fixing devices can be stably adjusted, the winding degree can be changed, loosening and dragging of a pipe body are avoided, and stability is improved.

Description

Technical Field

[0001] The invention relates to the technical field of PICC catheter placement, and more particularly to a skin tightening fixator used for PICC catheter placement. Background Art

[0002] At present, in the field of modern medicine, PICC (peripherally inserted central catheter) plays an indispensable role as a key deep vein catheterization technology. It punctures and inserts the catheter through peripheral veins such as the basilic vein, median cubital vein, and cephalic vein in the arm, and accurately places the end of the catheter in the central large vein such as the superior vena cava or subclavian vein, opening up a safe and effective infusion route for many patients. During chemotherapy, a large number of corrosive and irritating chemotherapy drugs rely on intravenous infusion to enter the human body. Given that once such drugs extravasate, they will cause serious consequences such as vasculitis, skin and soft tissue ulceration, and infection, it is urgent to build a high-quality, stable and reliable venous channel;

[0003] However, looking at the existing methods of fixing exposed PICC catheters, it is not difficult to find that there are many disadvantages. Traditionally, adhesive tape is used to fix exposed catheters. This method has obvious defects. On the one hand, the adhesive tape is very easy to fall off in daily use, and medical staff have to change it frequently, which not only increases the workload, but also may interfere with the stability of the catheter due to frequent operations, and even cause infection risks. On the other hand, the flexible fixing characteristics of the adhesive tape make it difficult to ensure the precise positioning of the PICC catheter. In the daily activities of patients, even slight body movements can easily accidentally pull the catheter, causing direct stimulation and damage to the catheterization wound, affecting the wound healing process, and causing unnecessary pain to the patient.

[0004] In addition, the existing technology also has shortcomings in the management of the PICC catheter body. During use, there is a lack of a special winding and fixing device for the excess tube body, which causes the excess PICC catheter to be loosely exposed. This undoubtedly greatly increases the risk of the indwelling tube being accidentally dragged. Once this happens, it will not only cause the wound to rupture and bleed, but may also cause the catheter to shift and fall out, seriously threatening the patient's treatment safety and recovery process. There is an urgent need to improve and optimize the existing technology. Summary of the invention

[0005] In view of the problems in the prior art of inconvenient and stable positioning of PICC catheters, inability to stably manage PICCs and easy irritation to patient wounds, the purpose of the present invention is to provide a skin fixator for tightening PICC catheters.

[0006] To solve the above problems, the present invention adopts the following technical solutions:

[0007] A skin fixator for tightening during PICC catheter placement, comprising two mounting frames, a base is fixedly mounted in the middle of the top of the two mounting frames, a positioning mechanism is mounted on the top of the base, a winding mechanism is fixedly connected to one side of the top of the positioning mechanism, and mounting mechanisms are fixedly mounted on both sides of the bottom of the base;

[0008] The positioning mechanism includes a mounting arm, which is mounted on both sides of the top of the base, and mounting plates are fixedly mounted between the inner sides of the upper ends of the mounting arms, the inner side of the mounting plate is rotatably connected to a positioning sleeve, the outer side of one mounting plate is rotatably connected to an adjusting plate, the upper end of the adjusting plate is threadedly connected to a first screw, the end of the first screw passes through the adjusting plate, and the inner side of the adjusting plate is connected to one side of the positioning sleeve.

[0009] Optionally, limiting holes are arranged in a ring shape at equal intervals on the outer side of the mounting plate on one side of the adjusting plate, and the end of the first screw is inserted into the inner side of the limiting hole.

[0010] Optionally, a second screw is threadedly connected to a side of the top of the positioning sleeve away from the winding mechanism, and an end of the second screw passes through the positioning sleeve and is rotatably connected to an extrusion block.

[0011] Optionally, the side surface of the mounting frame is L-shaped, a mounting plate is fixedly mounted on the outer side of the mounting frame, mounting holes are provided at both ends of the mounting plate, and the mounting holes are configured as countersunk holes.

[0012] Optionally, the mounting mechanism includes a top seat and a slot body, the top seat is fixedly mounted on the bottom of the base, the slot body is opened in the middle of the base and the top of the top seat, the bottom of the slot body passes through the top seat and the base, both sides of the top seat are opened with sliding grooves, the inside of the sliding groove is slidably connected with a slide plate, the outside of the slide plate is fixedly connected with a fixed arm, the bottom of the fixed arm is threadedly connected with a third screw rod, the top of the third screw rod passes through the fixed arm and is rotatably connected to a limiting arc plate, both sides of the bottom of the limiting arc plate are fixedly connected with support rods, the bottom of the support rods passes through the fixed arm, and the support rods and the fixed arm are movably connected.

[0013] Optionally, the winding mechanism includes a connecting block, which is fixedly connected to the front and rear ends of one side of the mounting arm, the top of the connecting block is fixedly connected to a top rail, both ends between the two top inner sides are fixedly connected to side panels, an adjustment component is provided on the inner side of the side panel, and both sides of the bottom of the adjustment component are fixedly connected to PICC tube holders.

[0014] Optionally, the adjustment assembly includes a screw rod, which is rotatably connected between the inner sides of the two side plates, the outer end of the screw rod passes through the side plate and is fixedly connected to an adjustment handle, the threads at both ends of the screw rod are rotated in opposite directions, both ends of the screw rod are threadedly connected to a movable plate, both ends of the movable plate are fixedly connected to a movable block, the movable block is slidably connected to the inside of the guide rail, and the bottom of the movable plate is connected to the top of the PICC tube holder.

[0015] Optionally, the PICC tube holder includes a concave frame, which is fixedly connected to the bottom of the movable plate, and elastic components are installed at both ends of the inner side of the concave frame. The inner side of the elastic component is fixedly connected to a connecting plate, and the upper and lower ends between the inner sides of the connecting plates are rotatably connected to a winding shaft.

[0016] Optionally, the elastic component includes a fixed frame, which is fixedly installed on both sides of the bottom of the concave frame, a torsion spring is fixedly connected to the inside of the fixed frame, a turntable is fixedly installed on the inner end of the torsion spring, the turntable is rotatably connected to the inner end of the fixed frame, the inner side of the turntable and the outer side of the connecting plate are fixedly connected, the outer side of the turntable is fixedly connected with a connecting shaft, the outer end of the connecting shaft passes through the fixed frame and is fixedly connected with an adjusting plate, the connecting shaft and the fixed frame are rotatably connected, the outer upper end of the adjusting plate is threadedly connected with a fourth screw, and the end of the fourth screw passes through the adjusting plate.

[0017] Optionally, the first screw, the second screw, the third screw and the fourth screw are all configured as hand-tightened screws, and the outer side of the fixing frame is provided with holes arranged in a ring at equal intervals, and the end of the fourth screw passes through the adjustment plate and is inserted into the hole.

[0018] Compared with the prior art, the technical solution provided by the present invention has at least the following beneficial effects:

[0019] In the above scheme, the mounting plate is fixed to the operating table or bed using the mounting holes and bolts of the mounting plate. The patient's arm is then inserted into the top of the limiting arc plate between the top seat and the fixed arm. The third screw is turned, and the limiting arc plate moves up to cooperate with the top seat to clamp the arm. When fixed, the slide plate in the sliding groove can adjust the position of the fixed arm to adapt to the patient's puncture needs and accurately position the arm. The two sets of fixed arms can lock both ends of the puncture site to ensure stability. The groove body reserves puncture space, and the limiting arc plate and the top seat are provided with silicone cushions to strengthen the clamping and improve the patient's comfort. Before catheterization, excess PICC catheters are placed in the reeling mechanism. After the operation, the reeling mechanism shrinks to prevent the PICC tube from loosening, entanglement or dragging, ensuring stability and avoiding secondary injuries.

[0020] When the device is placed in the catheter, the positioning mechanism can be flexibly adjusted as needed. The positioning sleeve in the mounting plate is rotated according to the puncture angle, the adjustment plate is pushed to drive the sleeve to rotate to the required angle, and then the first screw is turned to insert it into the corresponding mounting hole, and the second screw is used to assist in limiting and fix the sleeve. After the angle is adjusted, the puncture device is inserted into the sleeve for puncture. After the puncture is completed, the second screw is turned to move the extrusion block downward to compress the puncture device and fix the catheter. The PICC catheter body is located in the sleeve, which can effectively avoid pulling during use, enhance the stability of the catheter, and ensure a smooth catheterization process.

[0021] During PICC catheterization, rotate the adjustment plate, the connecting shaft drives the turntable to squeeze the torsion spring and compress it, screw the fourth screw to insert the card hole to lock the turntable, and insert the PICC catheter into the winding shaft and the positioning sleeve. After the catheterization is completed, loosen the fourth screw, and the torsion spring resets to drive the turntable to rotate, causing the upper and lower winding shafts of the connecting plate to rotate in a circle, and wind up the excess PICC catheter. The torsion springs on both sides act synchronously, and the winding is more efficient. During winding, the shaft rotates to assist in smooth winding. If adjustment is required, turn the adjustment handle, and the screw drives the movable plate to slide in the top rail through the movable block. Due to the thread characteristics of the screw, the distance between the two PICC catheter holders can be stably adjusted to change the degree of winding, avoid loosening and dragging of the tube body, and improve stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, further serve to explain the principles of the invention and to enable those skilled in the relevant art to make and use the invention.

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0024] Figure 2 It is a schematic diagram of the top view structure of the present invention;

[0025] Figure 3 It is a bottom view structural schematic diagram of the present invention;

[0026] Figure 4 It is a rear view structural schematic diagram of the present invention;

[0027] Figure 5 It is a schematic diagram of the installation mechanism structure of the present invention;

[0028] Figure 6 It is a rear view structural schematic diagram of the winding mechanism and the positioning mechanism of the present invention;

[0029] Figure 7 It is a front structural schematic diagram of the winding mechanism and the positioning mechanism of the present invention;

[0030] Figure 8 It is a schematic diagram of the elastic component structure of the present invention.

[0031] [Reference Signs]

[0032] 1. Mounting frame; 2. Base;

[0033] 3. Installation mechanism; 31. Top seat; 32. Tank body; 33. Slide slot; 34. Slide plate; 35. Fixed arm; 36. Third screw rod; 37. Limiting arc plate; 38. Support rod;

[0034] 4. Winding mechanism; 41. Connecting block; 42. Top rail; 43. Side plate;

[0035] 44. adjustment assembly; 441. screw rod; 442. adjustment handle; 443. movable plate; 444. movable block; 45. PICC catheter fixator; 451. concave frame;

[0036] 452, elastic component; 4521, fixed frame; 4522, torsion spring; 4523, rotating disk; 4524, connecting shaft; 4525, adjusting plate; 4526, fourth screw rod; 4527, clamping hole;

[0037] 453, connecting plate; 454, winding shaft;

[0038] 5. Positioning mechanism; 51. Mounting arm; 52. Mounting plate; 53. Positioning sleeve; 54. Adjusting plate; 55. First screw rod; 56. Second screw rod; 57. Extrusion block; 58. Mounting hole; 59. Mounting plate.

[0039] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0040] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternatives to implement some known technologies; and the accompanying drawings are only for more specific description of the embodiments, and are not intended to specifically limit the present invention.

[0041] It should be noted that the references to "one embodiment", "embodiment", "exemplary embodiments", "some embodiments" and the like in the specification indicate that the embodiments described may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, when a specific feature, structure or characteristic is described in conjunction with an embodiment, it should be within the knowledge of a person skilled in the art to implement such feature, structure or characteristic in conjunction with other embodiments (whether or not explicitly described).

[0042] In general, a term can be understood, at least in part, from its use in context. For example, depending, at least in part, on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending, at least in part, on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0043] It will be understood that the meanings of “on,” “over,” and “above” in the present invention should be interpreted in the broadest manner, so that “on” not only means “directly on” something, but also includes the meaning of being “on” something with intervening features or layers therebetween, and “on” or “over” not only means “on” or “above” something, but also includes the meaning of being “on” or “above” something with no intervening features or layers therebetween.

[0044] Additionally, spatially relative terms such as "under," "beneath," "lower," "above," "upper," and the like may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as shown in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein may be similarly interpreted accordingly.

[0045] like Figures 1 to 8 As shown, an embodiment of the present invention provides a skin fixator for tightening PICC catheterization, comprising two mounting frames 1, a base 2 is fixedly installed in the middle of the top of the two mounting frames 1, a positioning mechanism 5 is installed on the top of the base 2, a winding mechanism 4 is fixedly connected to one side of the top of the positioning mechanism 5, and mounting mechanisms 3 are fixedly installed on both sides of the bottom of the base 2.

[0046] The positioning mechanism 5 includes a mounting arm 51, which is mounted on both sides of the top of the base 2. A mounting plate 52 is fixedly mounted between the inner sides of the upper ends of the mounting arms 51. The inner side of the mounting plate 52 is rotatably connected to a positioning sleeve 53. The outer side of one mounting plate 52 is rotatably connected to an adjusting plate 54. The upper end of the adjusting plate 54 is threadedly connected to a first screw rod 55. The end of the first screw rod 55 passes through the adjusting plate 54. The inner side of the adjusting plate 54 is connected to one side of the positioning sleeve 53. The mounting mechanisms 3 on both sides of the bottom of the base 2 can conveniently fix the device in a suitable position. The positioning mechanism 5 on the top of the base 2 plays a key role. The mounting arm 51 stands on the base 2. On both sides of the top, the inner mounting plate 52 at the upper end firmly supports the positioning sleeve 53. The positioning sleeve 53 can be rotated to adjust the angle according to the puncture requirements to meet different puncture angle requirements and accurately position. The adjusting plate 54 is connected to the positioning sleeve 53. Rotating the adjusting plate 54 can drive the positioning sleeve 53 to rotate, and then the adjusting plate 54 is threadedly connected to the first screw 55. The first screw 55 is twisted and inserted into the corresponding position to assist in fixing the positioning sleeve 53 with the adjusted angle, providing stable protection for the puncture operation, which is conducive to the smooth implementation of PICC catheterization and reduces the risk of operational errors. The winding mechanism 4 on one side of the top can also effectively wind up and manage excess PICC catheters to avoid the hidden dangers caused by loose tubes.

[0047] like Figures 1 to 4 As shown, the outer side of the mounting plate 52 with the adjusting plate 54 is arranged in a ring shape with equal intervals, and the end of the first screw 55 is inserted into the inner side of the limiting hole. The top of the positioning sleeve 53 is threadedly connected to the side away from the winding mechanism 4 with a second screw 56, and the end of the second screw 56 passes through the positioning sleeve 53 and is rotatably connected to an extrusion block 57. The side shape of the mounting frame 1 is L-shaped, and a mounting plate 59 is fixedly installed on the outer side of the mounting frame 1. Both ends of the mounting plate 59 are provided with mounting holes 58, and the mounting holes 58 are set as countersunk holes. The outer side of the mounting plate 52 with the adjusting plate 54 is arranged in a ring shape with equal intervals. , cooperate with the end of the first screw 55. When the adjusting disk 54 is rotated to drive the positioning sleeve 53 to a suitable puncture angle, the first screw 55 is inserted into the limiting hole, which can accurately fix the sleeve angle, ensure the puncture positioning stability, and reduce the risk of angle deviation. The second screw 56 at the top of the positioning sleeve 53 is threadedly connected and penetrates the sleeve to connect the extrusion block 57. After the catheter is placed, the second screw 56 is rotated to move the extrusion block 57 downward, which can firmly fix the puncture device and the catheter to prevent displacement. The mounting frame 1 is arranged in an L shape, and countersunk holes are opened at both ends of the outer mounting plate 59. During installation, the countersunk holes are convenient for bolt installation, so that the device fits more closely. The L-shaped structure provides reliable support for the whole, and the installation is convenient and stable.

[0048] like Figures 1 to 5As shown, the mounting mechanism 3 includes a top seat 31 and a slot body 32, the top seat 31 is fixedly mounted on the bottom of the base 2, the slot body 32 is opened in the middle of the middle of the base 2 and the top of the top seat 31, the bottom of the slot body 32 passes through the top seat 31 and the base 2, and both sides of the top seat 31 are provided with sliding grooves 33, the inside of the sliding grooves 33 is slidably connected with a slide plate 34, the outer side of the slide plate 34 is fixedly connected with a fixed arm 35, the bottom of the fixed arm 35 is threadedly connected with a third screw rod 36, the top of the third screw rod 36 passes through the fixed arm 35 and is rotatably connected to a limiting arc plate 37, the bottom of the limiting arc plate 37 is fixedly connected with support rods 38 on both sides, the bottom of the support rod 38 passes through the fixed arm 35, The support rod 38 and the fixed arm 35 are movably connected, the top seat 31 is fixed to the bottom of the base 2, and the groove body 32 runs through the middle and top of the base 2 and the top seat 31, reserving space for subsequent operations. The sliding grooves 33 on both sides of the top seat 31 and the internal sliding slide plate 34, together with the outer fixed arm 35, can flexibly adjust the position of the fixed arm 35 according to the patient's arm condition to meet different puncture requirements and accurately position the arm. The third screw rod 36 threadedly connected to the bottom of the fixed arm 35 drives the top limiting arc plate 37 to move when it rotates. The support rod 38 assists in stabilization, and the patient's arm can be firmly clamped between the limiting arc plate 37 and the top seat 31, ensuring the stability of the puncture site, reducing the risk of arm shaking, and ensuring smooth puncture, laying a solid foundation for PICC catheterization operation.

[0049] like Figures 6 to 8As shown, the winding mechanism 4 includes a connecting block 41, which is fixedly connected to the front and rear ends of one side of the mounting arm 51, the top of the connecting block 41 is fixedly connected to a top rail 42, and the two ends between the inner sides of the two tops are fixedly connected to side plates 43, the inner sides of the side plates 43 are provided with an adjustment component 44, and the bottom sides of the adjustment component 44 are fixedly connected to PICC tube holders 45, the adjustment component 44 includes a screw rod 441, the screw rod 441 is rotatably connected between the inner sides of the two side plates 43, the outer end of the screw rod 441 passes through the side plates 43 and is fixedly connected to an adjustment handle 442, the two ends of the screw rod 441 have opposite thread rotation directions, the two ends of the screw rod 441 are threadedly connected to a movable plate 443, the two ends of the movable plate 443 are fixedly connected to a movable block 444, the movable block 444 is slidably connected to the inside of the guide rail, the bottom of the movable plate 443 and the PIC The top of the C tube holder 45 is connected, and the connecting block 41 is fixed to the front and rear ends of one side of the mounting arm 51. The top rail 42 cooperates with the side plate 43 to provide a stable support structure for the winding-related components. The screw rod 441 in the adjustment component 44 is rotatably connected to the inner side of the side plate 43, and the outer end adjustment handle 442 is easy to operate. The key is that the threads at both ends of the screw rod 441 are rotated in opposite directions. When the adjustment handle 442 is rotated to drive the screw rod 441 to rotate, it can drive the movable plates 443 at both ends to move toward or in the opposite direction. The movable plates 443 slide stably in the guide rails through the movable blocks 444 at both ends, and the bottom is connected to the PICC tube holder 45. In this way, the distance between the two PICC tube holders 45 can be adjusted as needed, and the PICC tube can be flexibly pulled, which can not only improve the degree of winding and effectively store the excess tube body, but also reduce the degree of winding as needed, adapt to different usage scenarios, avoid loosening and dragging of the tube body, and ensure that the PICC tube process is carried out in an orderly manner.

[0050] like Figures 6 to 8As shown, the PICC tube holder 45 includes a concave frame 451, which is fixedly connected to the bottom of the movable plate 443. Elastic components 452 are installed at both ends of the inner side of the concave frame 451. The inner side of the elastic component 452 is fixedly connected to a connecting plate 453. The upper and lower ends of the inner side of the connecting plate 453 are rotatably connected to a winding shaft 454. The elastic component 452 includes a fixed frame 4521, which is fixedly installed on both sides of the bottom of the concave frame 451. The interior of the frame 4521 is fixedly connected with a torsion spring 4522, and the inner end of the torsion spring 4522 is fixedly installed with a rotating disk 4523, and the rotating disk 4523 is rotatably connected to the inner end of the fixed frame 4521. The inner side of the rotating disk 4523 is fixedly connected to the outer side of the connecting plate 453, and the outer side of the rotating disk 4523 is fixedly connected with a connecting shaft 4524. The outer end of the connecting shaft 4524 penetrates the fixed frame 4521 and is fixedly connected with an adjusting plate 4525. The connecting shaft 4524 is rotatably connected to the fixed frame 4521, and the adjusting plate 4525 is fixedly connected to the fixing frame 4521. The upper end of the outer side of the fixing frame 4521 is threadedly connected with a fourth screw rod 4526, and the end of the fourth screw rod 4526 penetrates the adjustment plate 4525. The first screw rod 55, the second screw rod 56, the third screw rod 36 and the fourth screw rod 4526 are all configured as hand-tightened screw rods. The outer side of the fixing frame 4521 is provided with clamping holes 4527 arranged in a ring shape at equal intervals. The end of the fourth screw rod 4526 penetrates the adjustment plate 4525 and is inserted into the inside of the clamping hole 4527. The concave frame 451 is used to firmly fix it to the bottom of the movable plate 443, thereby building a stable foundation. , carrying a series of key components inside. The elastic components 452 carefully arranged at both ends of the inner side of the concave frame 451 are of great significance. Among them, the fixed frame 4521, as the basic component, is firmly fixed on both sides of the bottom of the concave frame 451 to provide protection and support for the internal structure. The torsion spring 4522 fixed inside the fixed frame 4521 is closely connected with the turntable 4523. The inner side of the turntable 4523 is precisely connected to the connecting plate 453. The outer connecting shaft 4524 reasonably penetrates the fixed frame 4521 and is connected to the adjustment plate 4525. Such a structure forms an organic whole.

[0051] In the actual operation process, by rotating the adjustment plate 4525, the connecting shaft 4524 can be linked to promote the smooth rotation of the turntable 4523, thereby squeezing the torsion spring 4522. At this time, the fourth screw 4526 is inserted into the clamping hole 4527 of the fixed frame 4521 to lock the turntable 4523, so that the winding state can be quickly prepared, and the PICC catheter can be conveniently inserted into the winding shaft 454 between the connecting plates 453. The whole process is efficient and smooth. After the catheter is placed, the fourth screw 4526 is loosened to disengage from the clamping hole 4527. At this time, the torsion spring 4522 is instantly reset, which effectively drives the turntable 4523 and the winding shaft 454 to rotate at a high speed, and the excess tube body is efficiently wound up. Moreover, the torsion springs 4522 on both sides exert force synchronously, and the winding effect is twice the result with half the effort.

[0052] In addition, the elastic component 452 also plays an additional important protective role. It can effectively buffer the unexpected impact force that may be applied by the outside world, and effectively protect the PICC catheter from damage. It is particularly worth mentioning that the first screw 55, the second screw 56, the third screw 36 and the fourth screw 4526 are all uniformly set as hand-tightened screws. This design greatly facilitates the operation of medical staff. There is no need to use complex tools. Various adjustments can be quickly completed anytime and anywhere with the strength of the hands alone, so that every link of the PICC catheter can be carried out efficiently and orderly, ensuring that the entire catheterization process is smooth and unobstructed.

[0053] The workflow of the technical solution provided by the present invention is as follows:

[0054] When in use, first use the mounting hole 58 on the mounting plate 59 to cooperate with the bolt to install the device at the location where it is needed, such as an operating table or a bed. Then let the patient's arm extend into the top of the limiting arc plate 37 between the top seat 31 and the fixed arm 35, and rotate the third screw 36 to move the limiting arc plate 37 upward. The limiting arc plate 37 cooperates with the top seat 31 to clamp the patient's arm. During the fixing process, the position of the fixed arm 35 is adjusted by sliding the slide plate 34 in the slide groove 33 to position the arm according to the patient's puncture needs. 35, can fix the two ends of the puncture site of the patient's arm to ensure the stability of the puncture position. When fixed, the groove body 32 reserves a puncture catheter space for the top of the arm, and a silicone cushion is added to the limiting arc plate 37 and the top seat 31, which can not only enhance the clamping stability, but also make the patient comfortable. Before catheterization, put the excess PICC catheter into the winding mechanism 4. After the catheterization operation is completed, the winding mechanism 4 contracts to assist in tightening the PICC tube to prevent it from being loose, messy, entangled or accidentally dragged, ensuring stability after catheterization and avoiding secondary injuries.

[0055] By setting the positioning mechanism 5, during the catheter placement operation of the device, the positioning mechanism 5 can be adjusted as needed, and the positioning sleeve 53 on the inner side of the mounting plate 52 is rotated according to the puncture angle, and the adjusting plate 54 is pushed to rotate, driving the positioning sleeve 53 to rotate. After adjusting the angle, the first screw 55 is turned to insert into the corresponding mounting hole 58, and then the second screw 56 is used to limit the position to assist in fixing the positioning sleeve 53. After the sleeve angle is adjusted, the puncture device is inserted into the interior thereof for puncture. After the puncture is completed, the second screw 56 is turned to drive the squeezing block 57 to move downward, squeeze the puncture device, so that the catheter can be fixed after the puncture and catheter placement is completed. The PICC catheter placement body is located in the positioning sleeve 53, which can be better positioned to prevent the PICC catheter from being pulled during use.

[0056] By setting the winding mechanism 4, when using the device for PICC tube placement, the adjustment plate 4525 is rotated to drive the connecting shaft 4524 to drive the turntable 4523 to rotate, the turntable 4523 squeezes the torsion spring 4522 to compress it, and then the fourth screw 4526 is twisted to insert the clamping hole 4527 to lock the turntable 4523, and then the PICC tube is inserted between the two winding shafts 454, and then inserted into the positioning sleeve 53. After the tube placement is completed, the fourth screw 4526 is twisted to make it disengage from the clamping hole 4527, and the torsion spring 4522 is reset without limit, driving the turntable 4523 to rotate in the fixed frame 4521, and the turntable 4523 drives the winding shafts 454 at the upper and lower ends of the connecting plate 453 to rotate in a circle, so that the excess PICC tube is rolled up on the winding shaft 454. On the outer surface, four groups of torsion springs 4522 on both sides are reset synchronously, driving the winding shaft 454 to rotate synchronously, effectively winding up the excess PICC tube. When winding, the winding shaft 454 rotates to assist in stable winding. If adjustment is needed during use, the adjustment handle 442 is turned to drive the screw rod 441 to drive the movable plate 443 to slide, and the movable blocks 444 at both ends of the movable plate 443 rotate stably in the top rail 42. Because the threads at both ends of the screw rod 441 rotate in opposite directions, the two movable plates 443 can be driven to reciprocate, and the distance between the two PICC tube holders 45 can be adjusted. The degree of winding can be changed by pulling to both sides or pushing inward. This adjustable design improves the overall winding effect of the device, avoids the excess PICC tube from being loose and dragged, and further improves the stability of the PICC tube.

[0057] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention, but those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0058] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A skin fixator for tightening PICC catheterization, comprising two mounting frames, characterized in that: A base is fixedly installed in the middle of the tops of the two mounting frames, a positioning mechanism is installed on the top of the base, a winding mechanism is fixedly connected to one side of the top of the positioning mechanism, and mounting mechanisms are fixedly installed on both sides of the bottom of the base; The positioning mechanism includes a mounting arm, which is mounted on both sides of the top of the base, and mounting plates are fixedly mounted between the inner sides of the upper ends of the mounting arms, the inner side of the mounting plate is rotatably connected to a positioning sleeve, the outer side of one mounting plate is rotatably connected to an adjusting plate, the upper end of the adjusting plate is threadedly connected to a first screw, the end of the first screw passes through the adjusting plate, and the inner side of the adjusting plate is connected to one side of the positioning sleeve.

2. The skin tightening fixator for PICC catheter placement according to claim 1, characterized in that: Limiting holes are arranged in a ring shape at equal intervals on the outer side of the mounting plate on one side of the adjusting plate, and the end of the first screw rod is inserted into the inner side of the limiting hole.

3. The skin tightening fixator for PICC catheter placement according to claim 1, characterized in that: A second screw is threadedly connected to a side of the top of the positioning sleeve away from the winding mechanism, and an end of the second screw penetrates the positioning sleeve and is rotatably connected to an extrusion block.

4. The skin tightening fixator for PICC catheter placement according to claim 3, characterized in that: The side surface of the mounting frame is L-shaped, and a mounting plate is fixedly mounted on the outer side of the mounting frame. Both ends of the mounting plate are provided with mounting holes, and the mounting holes are configured as countersunk holes.

5. The skin tightening fixator for PICC catheter placement according to claim 4, characterized in that: The mounting mechanism includes a top seat and a slot body, the top seat is fixedly mounted on the bottom of the base, the slot body is opened in the middle of the base and the top of the top seat, the bottom of the slot body passes through the top seat and the base, both sides of the top seat are opened with slide grooves, the inside of the slide groove is slidably connected with a slide plate, the outside of the slide plate is fixedly connected with a fixed arm, the bottom of the fixed arm is threadedly connected with a third screw rod, the top of the third screw rod passes through the fixed arm and is rotatably connected to a limiting arc plate, both sides of the bottom of the limiting arc plate are fixedly connected with support rods, the bottom of the support rods passes through the fixed arm, and the support rods and the fixed arm are movably connected.

6. The skin tightening fixator for PICC catheter placement according to claim 5, characterized in that: The winding mechanism includes a connecting block, which is fixedly connected to the front and rear ends of one side of the mounting arm, the top of the connecting block is fixedly connected to a top rail, both ends between the two top inner sides are fixedly connected to side panels, the inner side of the side panel is provided with an adjustment component, and both sides of the bottom of the adjustment component are fixedly connected to PICC tube holders.

7. The skin tightening fixator for PICC catheter placement according to claim 6, characterized in that: The adjustment assembly includes a screw rod, which is rotatably connected between the inner sides of the two side plates. The outer end of the screw rod passes through the side plate and is fixedly connected to an adjustment handle. The threads at both ends of the screw rod are rotated in opposite directions. Both ends of the screw rod are threadedly connected to a movable plate. Both ends of the movable plate are fixedly connected to a movable block. The movable block is slidably connected to the inside of the guide rail, and the bottom of the movable plate is connected to the top of the PICC tube holder.

8. The skin tightening fixator for PICC catheter placement according to claim 7, characterized in that: The PICC tube holder comprises a concave frame, which is fixedly connected to the bottom of the movable plate. Both ends of the inner side of the concave frame are installed with elastic components, and the inner side of the elastic components is fixedly connected with connecting plates. The upper and lower ends between the inner sides of the connecting plates are rotatably connected with a winding shaft.

9. The skin tightening fixator for PICC catheter placement according to claim 8, characterized in that: The elastic component includes a fixed frame, which is fixedly installed on both sides of the bottom of the concave frame, a torsion spring is fixedly connected to the inside of the fixed frame, a turntable is fixedly installed on the inner end of the torsion spring, and the turntable is rotatably connected to the inner end of the fixed frame, the inner side of the turntable and the outer side of the connecting plate are fixedly connected, the outer side of the turntable is fixedly connected with a connecting shaft, the outer end of the connecting shaft passes through the fixed frame and is fixedly connected with an adjusting plate, the connecting shaft and the fixed frame are rotatably connected, the outer upper end of the adjusting plate is threadedly connected with a fourth screw, and the end of the fourth screw passes through the adjusting plate.

10. The skin tightening fixator for PICC catheter placement according to claim 9, characterized in that: The first screw, the second screw, the third screw and the fourth screw are all configured as hand-tightened screws, and the outer side of the fixing frame is provided with holes arranged in a ring shape at equal intervals, and the end of the fourth screw passes through the adjustment plate and is inserted into the inside of the hole.

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