Anti-falling PICC (Peripherally Inserted Central Catheter) limiting device

Abstract

The utility model discloses an anti-drop PICC (Peripherally Inserted Central Catheter) limiting device, which relates to the technical field of medical appliances and comprises an inserting structure, an elastic band and a limiting band, the limiting band is made of a rubber soft material, a connecting groove is formed in one end, far away from the inserting structure, of the limiting band, and one end, far away from the inserting structure, of the elastic band is inserted into the connecting groove. The limiting belt is connected with the end, away from the inserting structure, of the elastic belt, a limiting hole groove matched with the PI CC containing pipe is formed in the limiting belt, the limiting hole groove is formed in the width direction of the limiting belt, a notch is formed in the limiting hole groove, a threaded through hole is formed in the position, close to the limiting hole groove, of the limiting belt, and the threaded through hole communicates with the limiting hole groove. Limiting columns are arranged in the threaded through holes and can abut against the PI CC containing pipes. The fixing device can be integrally sleeved on the arm of a patient and tightened and restrained, the PI CC indwelling catheter is abutted and limited, the PI CC indwelling catheter is prevented from slipping off, and the fixing device is beneficial to efficient clinical use, simple in structure, easy to assemble, beneficial to batch production and low in cost.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to a PICC tube placement limiting device to prevent it from falling off. Background Art

[0002] PICC (full name: Peripherally Inserted Central Catheter) is a peripherally inserted central venous catheter, which is performed by professional medical staff through peripheral vein puncture and cannulation, and the tip of the catheter is located in the superior vena cava. After the PICC catheter is inserted into the patient's body, the PICC catheter is very easy to move when the patient is active, which will change the position of the PICC catheter and may cause damage to the patient, so the PICC catheter needs to be fixed and limited.

[0003] The existing PICC tube fixing method is to use medical tape to directly fix the PICC tube on the patient's arm, which has a poor fixing effect and can easily cause the PICC tube to fall off.

[0004] Chinese utility model patent CN220370286U discloses a novel Picc tube placement structure that prevents falling off, including a buckle, one end of the buckle is fixedly connected to an elastic band, one side of the elastic band is fixedly connected to a connecting block, the surface of the connecting block is fixedly connected to an insertion block through a fixing column, the surface of the elastic band is fixedly connected to a concave base, both sides of the concave base are fixedly connected to a threaded rod through threads, the threaded rod is rotatably connected to a pressure plate through a bearing, and the surface of the pressure plate is movably connected to a Picc tube. The novel Picc tube placement structure that prevents falling off, through the arrangement of the buckle, elastic band, connecting block, fixing column, insertion block and clamping block, plays the role of being firmly fixed on the patient's arm and intuitively seeing the adjustment buckle in position. First, the elastic band is wrapped around the patient's arm, and after adjusting the appropriate tightness, the buckle is inserted into the clamping block to fix it.

[0005] Although this design solves the problem that the original PICC catheter is unstable and easy to fall off when used on the patient's arm, after the anti-falling structure of the PICC catheter is proposed, the following defects are introduced:

[0006] On the one hand, the above-mentioned Picc pipe placement structure technology for preventing falling off has a relatively complex assembly and installation structure, with many and complicated parts, specifically consisting of a concave base, a threaded rod, a pressure plate, a transparent square box, a square box door, a door handle, a receiving column, a stopper and a limit rail, which is not only not conducive to mass production and high cost, but also difficult to assemble and not convenient for efficient assembly;

[0007] On the other hand, in clinical applications, Picc catheters are frequently placed and removed, and the timeliness requirement is high, which poses a challenge to the flexibility of the Picc catheter positioning and fixation. From the perspective of the above-mentioned anti-fall-off Picc catheter structure technology, the Picc catheter structure components used for positioning are relatively large, which is not conducive to efficient clinical use and cannot meet the timeliness requirements of clinical treatment.

[0008] Therefore, there is an urgent need to design an anti-falling PICC catheter limiting device that has a simple structure, is easy to assemble, is conducive to efficient clinical use, and meets the timeliness requirements of clinical treatment. Utility Model Content

[0009] In view of the problems existing in the prior art, the utility model provides a PICC tube limiting device to prevent it from falling off. After adopting the PICC tube limiting device, through the structural design of the plug-in structure, the elastic band and the limiting band, the PICC tube limiting device can be integrally mounted on the patient's arm and tightened to effectively prevent the PICC tube limiting device from falling off the patient's arm, thereby improving the overall binding stability.

[0010] The limiting hole groove that is compatible with the PICC tube is provided on the limiting belt, and the limiting hole groove is provided with a notch along the width direction of the limiting belt. In addition, the limiting belt is made of soft rubber material, and the notch of the limiting hole groove of the limiting belt can be opened and expanded by external force, so that the PICC tube can enter the limiting hole groove from the notch. The limiting hole groove structure on the limiting belt is reset and tightened, and the limiting hole groove clamping action of the PICC tube is completed. The design of the threaded through hole on the limiting belt, the limiting hole groove connected with the threaded through hole, and the limiting column threadedly connected with the threaded through hole enables the limiting column to abut against the PICC tube, thereby flexibly realizing the abutment limitation of the PICC tube, limiting the sliding of the PICC tube in the limiting hole groove, and effectively preventing the PICC tube from slipping out of the limiting hole groove, which is conducive to clinical efficient use and meets the timeliness requirements of clinical treatment.

[0011] The combined installation structure is relatively simple, with fewer parts, and the only external parts are: a limit column, which is specifically composed of a limit hole groove, a notch, a threaded through hole, a limit hole groove and a limit column, solving the problem that the traditional structure is relatively complex and has many and complicated parts. It is not only conducive to mass manufacturing and production with low cost, but also easy to assemble and facilitates efficient assembly.

[0012] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0013] The present application proposes a PICC tube limiting device for preventing it from falling off, comprising a plug-in structure, wherein the plug-in structure comprises a buckle and a block for matching plug-in; comprising an elastic band movably connected to the block and a limiting band fixedly connected to the buckle, wherein the limiting band is made of soft rubber material, a connecting groove is provided at one end of the limiting band away from the plug-in structure, an end of the elastic band away from the plug-in structure is inserted into the connecting groove, the limiting band is connected to the end of the elastic band away from the plug-in structure, a limiting hole groove adapted to the PICC tube is provided on the limiting band, the limiting hole groove is arranged along the width direction of the limiting band, the limiting hole groove is provided with a notch along the width direction of the limiting band, a threaded through hole is provided at a position close to the limiting hole groove, the threaded through hole is communicated with the limiting hole groove, a limiting column capable of being threadedly connected to the threaded through hole is provided in the threaded through hole, and the limiting column can abut against the PICC tube;

[0014] The design of the above technical solution, on the one hand, through the structural design of the plug-in structure, the elastic band and the limiting band, the PICC tube limiting device can be integrally mounted on the patient's arm and tightened to effectively prevent the PICC tube limiting device from falling off the patient's arm and improve the overall binding stability;

[0015] On the other hand, the present application provides a limiting hole groove adapted to the PICC tube on the limiting belt, and the limiting hole groove is provided with a notch along the width direction of the limiting belt. In addition, the limiting belt is made of soft rubber material, and the notch of the limiting hole groove of the limiting belt can be opened and expanded by external force, so that the PICC tube can enter the limiting hole groove from the notch. After that, the limiting hole groove structure on the limiting belt is reset and tightened, and the limiting hole groove clamping action of the PICC tube is completed. Through the design of the threaded through hole on the limiting belt, the limiting hole groove connected with the threaded through hole, and the limiting column threadedly connected with the threaded through hole, the limiting column can abut against the PICC tube, thereby flexibly realizing the abutment limitation of the PICC tube, limiting the sliding of the PICC tube in the limiting hole groove, facilitating clinical efficient use, and meeting the timeliness requirements of clinical treatment;

[0016] In addition, the PICC catheter limiting device of the present application has a relatively simple combined installation structure and fewer parts. The only externally added parts are: a limiting column, which is specifically composed of a limiting hole groove, a notch, a threaded through hole, a limiting hole groove and a limiting column. It solves the problem that the traditional structure is relatively complex and has many and complicated parts. It is not only conducive to mass manufacturing and production with low cost, but also easy to assemble and facilitates efficient assembly.

[0017] In order to solve the technical problem, the further technical solution adopted by the utility model is:

[0018] Optionally, in the above-mentioned PICC catheter limiting device, the limiting belt is made of silicone rubber, the plug-in structure is made of polypropylene, and the elastic belt is a flat braided elastic belt;

[0019] The design of the above technical solution adopts silicone rubber material for the limiting belt. The material enables the notch of the upper limit hole slot on the limiting belt to be opened for expansion or release for resetting, so that the PICC tube is easier to be inserted into or removed from the limiting hole slot. The silicone rubber material has a large friction coefficient, and the PICC tube is less likely to slip in the limiting hole slot. The plug-in structure adopts polypropylene material, which has a smooth texture and high hardness, is easy to be connected, and is not easy to be damaged. The elastic band adopts a flat woven elastic band, which not only does not squeeze the arm, but also is strong and durable.

[0020] Optionally, in the above-mentioned PICC tube limiting device, the limiting hole groove is vertically arranged on the limiting belt along the width direction of the limiting belt;

[0021] The design of the above technical solution, through the structural design of the limiting hole groove vertically arranged on the limiting belt, makes the PICC tube fixed in position and at the same time facilitate clinical vertical infusion, so that the medicine can flow smoothly into the human body.

[0022] Further optionally, in the above-mentioned PICC catheter limiting device, the limiting belt is designed as an arc-shaped structure, the limiting belt is adapted to the affected limb, and along the circumference of the limiting belt, the threaded through hole is arranged in the limiting belt, and the threaded through hole is obliquely opposite to the limiting hole groove;

[0023] The design of the above technical solution, through the arc structure design of the limiting belt, makes the limiting belt conform to the shape of the affected limb and adapt to it, thereby improving the comfort of the patient wearing the PICC tube limiting device, and through the design of built-in threaded through holes on the circumference of the limiting belt, and the threaded through holes are inclined to the limiting hole grooves, so that the threaded through holes can be aligned with the limiting hole grooves.

[0024] Further optionally, in the above-mentioned PICC tube limiting device, the extending direction of the threaded through hole in the limiting belt is: extending from the outer surface of the limiting belt to the inner surface of the limiting belt and toward the limiting hole groove until the threaded through hole is connected with the limiting hole groove;

[0025] The design of the above technical solution, by designing the extension direction of the threaded through hole in the limiting zone, enables the threaded through hole to be further accurately aligned with the limiting hole groove and communicated therewith.

[0026] Optionally, in the above-mentioned PICC catheter limiting device, one end of the limiting belt away from the connecting groove is fixedly riveted or clamped to the buckle;

[0027] The design of the above technical solution improves the connection firmness between the limiting belt and the buckle.

[0028] Optionally, in the above-mentioned PICC catheter limiting device, the limiting belt and the end of the elastic belt away from the plug-in structure are fixed by riveting through a connecting groove and a rivet;

[0029] In the design of the above technical solution, since the limiting belt and the elastic belt are made of different materials, the connection between the two must be firm, and the use of rivet fixing can improve the firmness of the connection between the two.

[0030] Optionally, in the above-mentioned PICC catheter limiting device, the limiting column is a hexagon socket cylindrical head screw, and a tightening rubber layer is provided at one end of the limiting column close to the limiting hole groove;

[0031] In the design of the above technical solution, the limiting column adopts a hexagon socket cylindrical head screw with a tightening rubber layer on the end, which is not only convenient for rotation adjustment and has strong applicability, but also the tightening rubber layer can form static friction with the PICC tube when abutting, further preventing the PICC tube from sliding in the limiting hole groove, and will not cause scratches and damage to the PICC tube during the rotation adjustment and abutment process.

[0032] Optionally, in the above-mentioned PICC catheter limiting device, the limiting column is a hexagonal ball screw, and the hexagonal ball screw is provided with a ball at one end close to the limiting hole, and the ball is made of rubber material;

[0033] The design of the above technical solution adopts the existing hexagonal ball screw, which does not have a screw cap and has an aesthetic effect. The rubber ball screw can play a good abutment and limiting role for the PICC catheter.

[0034] Optionally, in the above-mentioned PICC tube limiting device, the width of the notch is less than or equal to the diameter of the PICC tube;

[0035] The design of the above technical solution, through the design of the width of the notch on the limiting hole groove, when the PICC tube is inserted into the limiting hole groove from the notch, even if the PICC tube and the limiting column are in a non-abutment state, the PICC tube is not easy to break free from the notch of the limiting hole groove, thereby further improving the limiting effect of the PICC tube.

[0036] Compared with the prior art, this application has the following technical effects:

[0037] On the one hand, the present application adopts the structural design of the plug-in structure, the elastic band and the limiting band, so that the PICC tube limiting device can be integrally mounted on the patient's arm and tightened to effectively prevent the PICC tube limiting device from falling off the patient's arm and improve the overall binding stability;

[0038] On the other hand, the present application provides a limiting hole groove adapted to the PICC tube on the limiting belt, and the limiting hole groove is provided with a notch along the width direction of the limiting belt. In addition, the limiting belt is made of a soft rubber material, and the notch of the limiting hole groove of the limiting belt can be opened and expanded by an external force, so that the PICC tube can enter the limiting hole groove from the notch. After that, the limiting hole groove structure on the limiting belt is reset and tightened, and the limiting hole groove clamping action of the PICC tube is completed. Through the design of the threaded through hole on the limiting belt, the limiting hole groove connected to the threaded through hole, and the limiting column threadedly connected to the threaded through hole, the limiting column can be abutted against the PICC tube, thereby flexibly realizing the abutment limit of the PICC tube, limiting the sliding of the PICC tube in the limiting hole groove, and effectively preventing the PICC tube from slipping out of the limiting hole groove, which is conducive to clinical efficient use and meets the timeliness requirements of clinical treatment.

[0039] In addition, the PICC catheter limiting device of the present application has a relatively simple combined installation structure and fewer parts. The only externally added parts are: a limiting column, which is specifically composed of a limiting hole groove, a notch, a threaded through hole, a limiting hole groove and a limiting column. It solves the problem that the traditional structure is relatively complex and has many and complicated parts. It is not only conducive to mass manufacturing and production with low cost, but also easy to assemble and facilitates efficient assembly.

[0040] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the utility model in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 It is a schematic diagram of the three-dimensional structure of a preferred embodiment of the present application;

[0042] Figure 2 is a schematic diagram of the three-dimensional structure of another preferred embodiment of the present application;

[0043] Figure 3 It is a schematic diagram of the three-dimensional structure of the hexagon socket head screw described in the present application;

[0044] Figure 4 It is a schematic diagram of the three-dimensional structure of the hexagon socket ball-end set screw described in the present application;

[0045] Figure 5 It is a bottom schematic diagram of the hexagon socket of the hexagon socket ball screw described in the present application;

[0046] The components in the accompanying drawings are marked as follows:

[0047] Insertion structure 1, buckle 11, block 12, elastic band 2, limiting band 3, connection groove 31, limiting hole groove 32, notch 321, threaded through hole 33, limiting column 34, fastening rubber layer 341, ball 342, rivet 35 and PICC tube 4. DETAILED DESCRIPTION

[0048] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0049] Example

[0050] like Figures 1 to 5 As shown, in one embodiment of the present application, a PICC catheter limiting device for preventing falling off includes a plug-in structure 1, wherein the plug-in structure 1 includes a buckle 11 and a block 12 for mating plugging; an elastic band 2 movably connected to the block 12 and a limiting band 3 fixedly connected to the buckle 11, wherein the limiting band 3 is made of a soft rubber material, and is characterized in that: the limiting band 3 is provided with a connecting groove 31 at one end away from the plug-in structure 1, and the end of the elastic band 2 away from the plug-in structure 1 is inserted into the connecting groove 31, and the limiting band 3 and the elastic band 2 are away from the plug-in structure 1. One end of the structure 1 is connected, the limiting belt 3 is provided with a limiting hole groove 32 adapted to the PICC tube 4, the limiting hole groove 32 is arranged along the width direction of the limiting belt 3, the limiting hole groove 32 is provided with a notch 321 along the width direction of the limiting belt 3, the limiting belt 3 is provided with a threaded through hole 33 at a position close to the limiting hole groove 32, the threaded through hole 33 is communicated with the limiting hole groove 32, a limiting column 34 capable of being threadedly connected to the threaded through hole 33 is arranged in the threaded through hole 33, and the limiting column 34 can abut against the PICC tube 4;

[0051] In this embodiment, on the one hand, through the structural design of the plug-in structure, the elastic band and the limiting band, the PICC tube limiting device can be integrally mounted on the patient's arm and tightened to effectively prevent the PICC tube limiting device from falling off the patient's arm, thereby improving the overall binding stability;

[0052] On the other hand, by providing a limiting hole groove adapted to the PICC tube on the limiting belt, the limiting hole groove is provided with a notch along the width direction of the limiting belt, and the limiting belt is made of soft rubber material, so that the notch of the limiting hole groove of the limiting belt can be opened and expanded by external force, so that the PICC tube can enter the limiting hole groove from the notch, and then the limiting hole groove structure on the limiting belt is reset and tightened, completing the action of the limiting hole groove clamping the PICC tube, and through the design of the threaded through hole on the limiting belt, the limiting hole groove connected with the threaded through hole, and the limiting column threadedly connected with the threaded through hole, the limiting column can be abutted against the PICC tube, thereby flexibly realizing the abutment limitation of the PICC tube, limiting the sliding of the PICC tube in the limiting hole groove, and effectively preventing the PICC tube from slipping out of the limiting hole groove, which is conducive to clinical efficient use and meets the timeliness requirements of clinical treatment;

[0053] In addition, the combined installation structure of the PICC catheter limiting device is relatively simple, with fewer parts and components. The only external components are: limiting columns, which are specifically composed of limiting holes, notches, threaded through holes, limiting holes and limiting columns. This solves the problem of complex traditional structures and many and complicated parts. It is not only conducive to mass manufacturing and production with low cost, but also easy to assemble and facilitates efficient assembly.

[0054] In another embodiment of the present application, Figure 1 As shown, the limiting belt 3 is made of silicone rubber, the plug-in structure 1 is made of polypropylene, and the elastic belt 2 is a flat braided elastic belt;

[0055] In the present embodiment, the limiting belt is designed with silicone rubber material. The material enables the notch of the upper limiting hole groove on the limiting belt to be opened for expansion or release for resetting, so that the PICC tube is easier to be inserted into or removed from the limiting hole groove. The silicone rubber material has a large friction coefficient, and the PICC tube is less likely to slip in the limiting hole groove. The plug-in structure is made of polypropylene, which has a smooth texture and high hardness, is easy to be connected, and is not easy to be damaged. The elastic band is a flat woven elastic band, which not only does not squeeze the arm, but also is strong and durable.

[0056] In another embodiment of the present application, Figure 1 and Figure 2 As shown, along the width direction of the limiting belt 3, the limiting hole groove 32 is vertically arranged on the limiting belt 3;

[0057] In this embodiment, by vertically arranging the limiting hole groove on the limiting belt, the PICC tube can be fixed in position and facilitate clinical vertical infusion, so that the medicine can flow smoothly into the human body.

[0058] In another embodiment of the present application, further, Figure 1 and Figure 2 As shown, the limiting belt 3 is designed as an arc-shaped structure, and the limiting belt 3 is adapted to the affected limb. Along the circumference of the limiting belt 3, the threaded through hole 33 is arranged in the limiting belt 3, and the threaded through hole 33 is obliquely opposite to the limiting hole groove 32;

[0059] In this embodiment, the arc-shaped structure of the limiting belt is designed to make the limiting belt conform to the shape of the affected limb and adapt to it, thereby improving the comfort of the patient wearing the PICC catheter limiting device. By designing a built-in threaded through hole on the circumference of the limiting belt, and the threaded through hole is inclined to the limiting hole groove, the threaded through hole can be aligned with the limiting hole groove;

[0060] In addition, it should be noted that the threaded through holes and the limiting hole grooves are used in pairs, and a number of threaded through holes and limiting hole grooves can be arranged at equal intervals on the outer circumference of the limiting belt, so that one or more PICC tubes can be limited, adjusted and fixed during clinical use.

[0061] In another embodiment of the present application, further, as Figure 1 and Figure 2 As shown, the extending direction of the threaded through hole 33 in the limiting belt 3 is: from the outer surface of the limiting belt 3 to the inner surface of the limiting belt 3 and extending toward the limiting hole groove 32, until the threaded through hole 33 is connected with the limiting hole groove 32;

[0062] In this embodiment, by designing the extension direction of the threaded through hole in the limiting band, the threaded through hole can be further accurately aligned with the limiting hole groove and connected thereto. In addition, the extension direction design of the threaded through hole (that is, the direction of opening the threaded through hole is: obliquely from the surface of the limiting band to the interior of the limiting band, and toward the direction of the limiting hole groove) can prevent the limiting column from squeezing the edge portion of the PICC tube located at the notch, thereby achieving abutment limitation of the inner part of the PICC tube in width.

[0063] In another embodiment of the present application, Figure 1 and Figure 2 As shown, one end of the limiting belt 3 away from the connecting groove 31 is riveted or clamped to the buckle 11;

[0064] In this embodiment, conventional connection technology is used to improve the connection firmness between the limiting belt and the buckle.

[0065] In another embodiment of the present application, Figure 1 and Figure 2 As shown, the limiting belt 3 and the end of the elastic belt 2 away from the plug-in structure 1 are riveted and fixed through a connecting groove 31 and a rivet 35;

[0066] In this embodiment, since the limiting belt and the elastic belt are made of different materials, the connection between the two must be firm, and the use of rivet fixing can improve the firmness of the connection between the two.

[0067] In another embodiment of the present application, Figure 3 As shown, the limiting column 34 is a hexagon socket head screw, and a fixing rubber layer 341 is provided at one end of the limiting column 34 close to the limiting hole groove 32;

[0068] In this embodiment, the limiting column adopts a hexagon socket head screw with a tightening rubber layer on the end, which is not only convenient for rotation adjustment and has strong applicability, but also the tightening rubber layer can form static friction with the PICC tube when abutting, further preventing the PICC tube from sliding in the limiting hole groove, and will not cause scratches or damage to the PICC tube during the rotation adjustment and abutment process.

[0069] In another embodiment of the present application, Figure 4 and Figure 5 As shown, the limiting column 34 is a hexagon socket ball set screw, and the hexagon socket ball set screw is provided with a ball 342 at one end close to the limiting hole groove 32, and the ball 342 is made of rubber material;

[0070] In this embodiment, the existing hexagonal ball screw is used without a screw cap, which has an aesthetic effect. The rubber ball screw can play a good abutment and limiting role for the PICC catheter.

[0071] In another embodiment of the present application, Figure 1 and Figure 2 As shown, the width of the notch 321 is less than or equal to the diameter of the PICC tube 4;

[0072] In this embodiment, by designing the width of the notch on the limiting hole groove, when the PICC tube is inserted into the limiting hole groove from the notch, even if the PICC tube and the limiting column are in a non-abutment state, the PICC tube is not easy to break free from the notch of the limiting hole groove, thereby further improving the limiting effect of the PICC tube.

[0073] The binding and fixing working process of this application:

[0074] First, one end of the elastic band 2 and the limiting band 3 are riveted and fixed through the connecting groove 31 and the rivet 35, so that the elastic band 2 and the limiting band 3 can be connected;

[0075] Then, manually open and expand the limiting hole groove 32 on the limiting belt 3 until the PICC tube 4 can be smoothly placed into the limiting hole groove 32 from the notch 321, and manually adjust the position margin of the PICC tube 4;

[0076] Next, when the position of the PICC tube 4 is adjusted, the hexagonal wrench is manually used to adjust the limiting column 34 so that it rotates in the threaded through hole 33 in the positive direction until the end of the limiting column 34 can abut against the PICC tube 4 to be fixed in position;

[0077] Finally, the elastic band 2 and the limiting band 3 are attached to the patient's arm, and the other ends of the elastic band 2 and the limiting band 3 are connected by the plug-in structure 1 (that is, the buckle 11 on the limiting band 3 is matched with the clamping block 12 on the elastic band 2), so that the PICC tube limiting device is bound to the patient's arm;

[0078] If the PICC tube limiting device has been tied to the patient's arm, when the PICC tube 4 needs to be adjusted or removed, first complete the unfastening action of the plug-in structure 1 on the elastic band 2 and the limiting band 3. Once the plug-in structure 1 is separated, the elastic band 2 and the limiting band 3 can be released from the patient's arm. At this time, use the hexagonal wrench manually to rotate the limiting column 34 in the threaded through hole 33 in the opposite direction until the end of the limiting column 34 is away from the PICC tube 4. At this time, external force pries open the notch 321 of the expansion limiting hole slot 32 until the PICC tube 4 can be adjusted or removed in the limiting hole slot 32.

[0079] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure made using the contents of the specification and drawings of the present invention, or directly or indirectly used in other related technical fields, is also included in the patent protection scope of the present invention.

Claims

1. A PICC catheter limiting device for preventing it from falling off, comprising a plug-in structure (1), wherein the plug-in structure (1) comprises a buckle (11) and a clamping block (12) for mating plugging; comprising an elastic band (2) movably connected to the clamping block (12) and a limiting band (3) fixedly connected to the buckle (11), wherein the limiting band (3) is made of a soft rubber material, and is characterized in that: The limiting belt (3) is provided with a connection groove (31) at one end away from the plug-in structure (1), and the end of the elastic belt (2) away from the plug-in structure (1) is inserted into the connection groove (31). The limiting belt (3) is connected to the end of the elastic belt (2) away from the plug-in structure (1). The limiting belt (3) is provided with a limiting hole groove (32) adapted to the PICC catheter (4), and the limiting hole groove (32) is arranged along the width direction of the limiting belt (3). The limiting hole groove (32) is provided with a notch (321) along the width direction of the limiting belt (3); the limiting belt (3) is provided with a threaded through hole (33) at a position close to the limiting hole groove (32); the threaded through hole (33) is communicated with the limiting hole groove (32); a limiting column (34) capable of being threadedly connected to the threaded through hole (33) is provided in the threaded through hole (33); the limiting column (34) can abut against the PICC tube (4).

2. The PICC tube placement limiting device for preventing it from falling off according to claim 1 is characterized in that: The limiting belt (3) is made of silicone rubber, the plug-in structure (1) is made of polypropylene, and the elastic belt (2) is a flat braided elastic belt.

3. The PICC tube placement limiter device for preventing it from falling off according to claim 1, characterized in that: Along the width direction of the limiting belt (3), the limiting hole groove (32) is vertically arranged on the limiting belt (3).

4. The PICC tube placement limiting device for preventing it from falling off according to claim 3 is characterized in that: The limiting belt (3) is designed as an arc-shaped structure, and the limiting belt (3) is adapted to the affected limb. Along the circumference of the limiting belt (3), the threaded through hole (33) is arranged in the limiting belt (3), and the threaded through hole (33) is obliquely opposite to the limiting hole groove (32).

5. The PICC tube placement limiting device for preventing it from falling off according to claim 4, characterized in that: The extending direction of the threaded through hole (33) in the limiting belt (3) is: from the outer surface of the limiting belt (3) to the inner surface of the limiting belt (3) and extending in the direction of the limiting hole groove (32) until the threaded through hole (33) is connected with the limiting hole groove (32).

6. The PICC tube placement limiter device for preventing it from falling off according to claim 1, characterized in that: One end of the limiting belt (3) away from the connecting groove (31) is riveted and fixed or clamped to the buckle (11).

7. The PICC tube placement limiting device for preventing it from falling off according to claim 1, characterized in that: The limiting belt (3) and the end of the elastic belt (2) away from the plug-in structure (1) are riveted and fixed via a connecting groove (31) and a rivet (35).

8. The PICC catheter placement limiting device for preventing falling off according to claim 1, characterized in that: The limiting column (34) is a hexagon socket head screw, and a tightening rubber layer (341) is provided at one end of the limiting column (34) close to the limiting hole groove (32).

9. The PICC catheter placement limiting device for preventing falling off according to claim 1, characterized in that: The limiting column (34) is a hexagon socket ball set screw, and a ball (342) is arranged at one end of the hexagon socket ball set screw close to the limiting hole groove (32), and the ball (342) is made of rubber material.

10. The PICC tube placement limiting device for preventing it from falling off according to claim 1, characterized in that: The width of the notch (321) is less than or equal to the diameter of the PICC catheter (4).

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